Insider Trading disclosures for Merck & Company

The latest disclosure was made by Richard R. DeLuca in Merck & Company where a trade of 2,518 Restricted Stock Unit done was reported to US exchanges on April 29, 2026.

Insider trading is the trading of a company’s securities by individuals with access to confidential or material non-public information about the company. A company is required to report trading by corporate officers, directors, or other company members with significant access to privileged information to the Securities and Exchange Commission (SEC).

Client Name	Client Category	Action	Reported to Exchange	Quantity	Post Transaction Holding	Traded %	Avg. Price	Value	Security Type
Richard R. DeLuca	EVP&Pres, Merck Animal Heallth	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	29 Apr 2026	2,518	5,037	-		-	Restricted Stock Unit
Richard R. DeLuca	EVP&Pres, Merck Animal Heallth	Payment of exercise price or tax liability using portion of securities received from the company at price $ 110.03 per share.	29 Apr 2026	1,241	161,537 (0%)	0%	110.0	136,547	Common Stock
Richard R. DeLuca	EVP&Pres, Merck Animal Heallth	Exercise or conversion of derivative security received from the company (such as an option) at price $ 110.03 per share.	29 Apr 2026	2,518	162,778 (0%)	0%	110.0	277,056	Common Stock
Robert M. Davis	Director, Chairman, CEO & President	Exercise or conversion of derivative security received from the company (such as an option) at price $ 110.03 per share.	29 Apr 2026	13,300	456,901 (0%)	0%	110.0	1,463,399	Common Stock
Robert M. Davis	Director, Chairman, CEO & President	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	29 Apr 2026	13,300	26,601	-		-	Restricted Stock Unit
Robert M. Davis	Director, Chairman, CEO & President	Payment of exercise price or tax liability using portion of securities received from the company at price $ 110.03 per share.	29 Apr 2026	6,551	450,350 (0%)	0%	110.0	720,807	Common Stock
Betty D. Larson	EVP, Chief HR Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 110.95 per share.	29 Apr 2026	11,350	18,917 (0%)	0%	111.0	1,259,283	Common Stock
Betty D. Larson	EVP, Chief HR Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 110.03 per share.	29 Apr 2026	2,085	8,282 (0%)	0%	110.0	229,413	Common Stock
Betty D. Larson	EVP, Chief HR Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	29 Apr 2026	11,350	11,350	-		-	Restricted Stock Unit
Betty D. Larson	EVP, Chief HR Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	29 Apr 2026	2,085	4,172	-		-	Restricted Stock Unit
Betty D. Larson	EVP, Chief HR Officer	Payment of exercise price or tax liability using portion of securities received from the company at price $ 110.95 per share.	29 Apr 2026	5,143	13,774 (0%)	0%	111.0	570,616	Common Stock
Betty D. Larson	EVP, Chief HR Officer	Payment of exercise price or tax liability using portion of securities received from the company at price $ 110.03 per share.	29 Apr 2026	715	7,567 (0%)	0%	110.0	78,671	Common Stock
Sanat Chattopadhyay	Exe V-P & Pres. MMD	Exercise or conversion of derivative security received from the company (such as an option) at price $ 110.03 per share.	29 Apr 2026	2,597	16,477 (0%)	0%	110.0	285,748	Common Stock
Sanat Chattopadhyay	Exe V-P & Pres. MMD	Payment of exercise price or tax liability using portion of securities received from the company at price $ 110.03 per share.	29 Apr 2026	1,130	15,347 (0%)	0%	110.0	124,334	Common Stock
Sanat Chattopadhyay	Exe V-P & Pres. MMD	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	29 Apr 2026	2,597	5,194	-		-	Restricted Stock Unit
Chirfi Guindo	EVP, Access, Policy & Comms	Exercise or conversion of derivative security received from the company (such as an option) at price $ 110.03 per share.	29 Apr 2026	1,967	62,582 (0%)	0%	110.0	216,429	Common Stock
Chirfi Guindo	EVP, Access, Policy & Comms	Payment of exercise price or tax liability using portion of securities received from the company at price $ 110.03 per share.	29 Apr 2026	969	61,613 (0%)	0%	110.0	106,619	Common Stock
Chirfi Guindo	EVP, Access, Policy & Comms	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	29 Apr 2026	1,967	3,935	-		-	Restricted Stock Unit
Jennifer Zachary	EVP, General Counsel	Payment of exercise price or tax liability using portion of securities received from the company at price $ 110.03 per share.	29 Apr 2026	1,454	70,897 (0%)	0%	110.0	159,984	Common Stock
Jennifer Zachary	EVP, General Counsel	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	29 Apr 2026	2,951	5,903	-		-	Restricted Stock Unit
Jennifer Zachary	EVP, General Counsel	Exercise or conversion of derivative security received from the company (such as an option) at price $ 110.03 per share.	29 Apr 2026	2,951	72,351 (0%)	0%	110.0	324,699	Common Stock
Caroline A. Litchfield	EVP & CFO	Exercise or conversion of derivative security received from the company (such as an option) at price $ 110.03 per share.	29 Apr 2026	3,935	94,238 (0%)	0%	110.0	432,968	Common Stock
Caroline A. Litchfield	EVP & CFO	Payment of exercise price or tax liability using portion of securities received from the company at price $ 110.03 per share.	29 Apr 2026	1,938	92,300 (0%)	0%	110.0	213,238	Common Stock
Caroline A. Litchfield	EVP & CFO	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	29 Apr 2026	3,935	7,870	-		-	Restricted Stock Unit
David Michael Williams	EVP,Chief Info&Digital Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	29 Apr 2026	1,377	2,755	-		-	Restricted Stock Unit
David Michael Williams	EVP,Chief Info&Digital Officer	Payment of exercise price or tax liability using portion of securities received from the company at price $ 110.03 per share.	29 Apr 2026	679	31,716 (0%)	0%	110.0	74,710	Common Stock
David Michael Williams	EVP,Chief Info&Digital Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 110.03 per share.	29 Apr 2026	1,377	32,395 (0%)	0%	110.0	151,511	Common Stock
Dean Y. Li	Executive VP & President, MRL	Exercise or conversion of derivative security received from the company (such as an option) at price $ 110.03 per share.	29 Apr 2026	4,722	96,757 (0%)	0%	110.0	519,562	Common Stock
Dean Y. Li	Executive VP & President, MRL	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	29 Apr 2026	4,722	9,444	-		-	Restricted Stock Unit
Dean Y. Li	Executive VP & President, MRL	Payment of exercise price or tax liability using portion of securities received from the company at price $ 110.03 per share.	29 Apr 2026	2,326	94,431 (0%)	0%	110.0	255,930	Common Stock
Jannie Oosthuizen	EVP, Oncology & Int?l	Exercise or conversion of derivative security received from the company (such as an option) at price $ 110.03 per share.	29 Apr 2026	1,377	22,574 (0%)	0%	110.0	151,511	Common Stock
Jannie Oosthuizen	EVP, Oncology & Int?l	Payment of exercise price or tax liability using portion of securities received from the company at price $ 110.03 per share.	29 Apr 2026	679	21,895 (0%)	0%	110.0	74,710	Common Stock
Jannie Oosthuizen	EVP, Oncology & Int?l	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	29 Apr 2026	1,377	2,755	-		-	Restricted Stock Unit
Dalton E. Smart	SVP Fin. - Global Controller	Payment of exercise price or tax liability using portion of securities received from the company at price $ 110.03 per share.	29 Apr 2026	324	8,832 (0%)	0%	110.0	35,650	Common Stock
Dalton E. Smart	SVP Fin. - Global Controller	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	29 Apr 2026	944	1,889	-		-	Restricted Stock Unit
Dalton E. Smart	SVP Fin. - Global Controller	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	29 Apr 2026	464	465	-		-	Restricted Stock Unit
Dalton E. Smart	SVP Fin. - Global Controller	Exercise or conversion of derivative security received from the company (such as an option) at price $ 110.95 per share.	29 Apr 2026	464	9,296 (0%)	0%	111.0	51,481	Common Stock
Dalton E. Smart	SVP Fin. - Global Controller	Exercise or conversion of derivative security received from the company (such as an option) at price $ 110.03 per share.	29 Apr 2026	944	9,156 (0%)	0%	110.0	103,868	Common Stock
Dalton E. Smart	SVP Fin. - Global Controller	Payment of exercise price or tax liability using portion of securities received from the company at price $ 110.95 per share.	29 Apr 2026	159	9,137 (0%)	0%	110.9	17,641	Common Stock
Thomas Henry Glocer	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	31 Mar 2026	405	108,293	-		-	Phantom Stock
Mary Ellen Coe	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	31 Mar 2026	249	29,702	-		-	Phantom Stock
Christine E. Seidman	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	31 Mar 2026	67	19,238	-		-	Phantom Stock
Chirfi Guindo	Chief Marketing Officer	Sale of securities on an exchange or to another person at price $ 121.46 per share.	12 Feb 2026	10,000	60,615 (0%)	0%	121.5	1,214,562	Common Stock
Dean Y. Li	Executive VP & President, MRL	Sale of securities on an exchange or to another person at price $ 117.52 per share.	10 Feb 2026	10,235	92,035 (0%)	0%	117.5	1,202,844	Common Stock
Chirfi Guindo	Chief Marketing Officer	Sale of securities on an exchange or to another person at price $ 118.41 per share.	09 Feb 2026	10,000	70,615 (0%)	0%	118.4	1,184,101	Common Stock
Jennifer Zachary	EVP, General Counsel	Exercise or conversion of derivative security received from the company (such as an option) at price $ 119.15 per share.	09 Feb 2026	25,946	94,861 (0%)	0%	119.2	3,091,523	Common Stock
Jennifer Zachary	EVP, General Counsel	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	09 Feb 2026	56,792	0	-		-	Stock Option (Right to Buy)
Jennifer Zachary	EVP, General Counsel	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	09 Feb 2026	25,946	0	-		-	Stock Option (Right to Buy)
Jennifer Zachary	EVP, General Counsel	Sale of securities on an exchange or to another person at price $ 119.15 per share.	09 Feb 2026	38,835	68,915 (0%)	0%	119.2	4,627,276	Common Stock
Jennifer Zachary	EVP, General Counsel	Exercise or conversion of derivative security received from the company (such as an option) at price $ 119.15 per share.	09 Feb 2026	38,835	107,750 (0%)	0%	119.2	4,627,276	Common Stock
Jennifer Zachary	EVP, General Counsel	Sale of securities on an exchange or to another person at price $ 119.15 per share.	09 Feb 2026	56,792	68,915 (0%)	0%	119.2	6,766,892	Common Stock
Jennifer Zachary	EVP, General Counsel	Exercise or conversion of derivative security received from the company (such as an option) at price $ 119.15 per share.	09 Feb 2026	56,792	125,707 (0%)	0%	119.2	6,766,892	Common Stock
Jennifer Zachary	EVP, General Counsel	Sale of securities on an exchange or to another person at price $ 119.15 per share.	09 Feb 2026	25,946	68,915 (0%)	0%	119.2	3,091,523	Common Stock
Jennifer Zachary	EVP, General Counsel	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	09 Feb 2026	38,835	0	-		-	Stock Option (Right to Buy)
Richard R. DeLuca	EVP&Pres, Merck Animal Heallth	Sale of securities on an exchange or to another person at price $ 120.92 per share.	06 Feb 2026	37,685	160,173 (0%)	0%	120.9	4,557,025	Common Stock
David Michael Williams	EVP,Chief Info&Digital Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	06 Feb 2026	5,000	4,600	-		-	Stock Option (Right to Buy)
David Michael Williams	EVP,Chief Info&Digital Officer	Sale of securities on an exchange or to another person at price $ 121.90 per share.	06 Feb 2026	5,000	30,837 (0%)	0%	121.9	609,525	Common Stock
David Michael Williams	EVP,Chief Info&Digital Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 77.62 per share.	06 Feb 2026	5,000	35,837 (0%)	0%	77.6	388,100	Common Stock
Jannie Oosthuizen	President, U.S. Market	Sale of securities on an exchange or to another person at price $ 121.87 per share.	06 Feb 2026	15,000	21,197 (0%)	0%	121.9	1,827,992	Common Stock
Chirfi Guindo	Chief Marketing Officer	Sale of securities on an exchange or to another person at price $ 121.88 per share.	05 Feb 2026	20,000	80,615 (0%)	0%	121.9	2,437,676	Common Stock
Robert M. Davis	Director, Chairman, CEO & President	Sale of securities on an exchange or to another person at price $ 118.35 per share.	04 Feb 2026	32,462	443,601 (0%)	0%	118.4	3,841,920	Common Stock
Robert M. Davis	Director, Chairman, CEO & President	Sale of securities on an exchange or to another person at price $ 117.38 per share.	04 Feb 2026	14,972	476,063 (0%)	0%	117.4	1,757,407	Common Stock
Caroline A. Litchfield	EVP & CFO	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	04 Feb 2026	41,997	0	-		-	Stock Option (Right to Buy)
Caroline A. Litchfield	EVP & CFO	Exercise or conversion of derivative security received from the company (such as an option) at price $ 53.06 per share.	04 Feb 2026	41,997	132,189 (0%)	0%	53.1	2,228,361	Common Stock
Caroline A. Litchfield	EVP & CFO	Sale of securities on an exchange or to another person at price $ 119.61 per share.	04 Feb 2026	41,997	90,192 (0%)	0%	119.6	5,023,312	Common Stock
Dean Y. Li	Executive VP & President, MRL	Sale of securities on an exchange or to another person at price $ 118.77 per share.	04 Feb 2026	15,087	102,270 (0%)	0%	118.8	1,791,824	Common Stock
Dean Y. Li	Executive VP & President, MRL	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	04 Feb 2026	15,087	0	-		-	Stock Option (Right to Buy)
Dean Y. Li	Executive VP & President, MRL	Exercise or conversion of derivative security received from the company (such as an option) at price $ 56.04 per share.	04 Feb 2026	15,087	117,357 (0%)	0%	56.0	845,475	Common Stock
Dalton E. Smart	SVP Fin. - Global Controller	Sale of securities on an exchange or to another person at price $ 119.68 per share.	04 Feb 2026	2,400	8,204 (0%)	0%	119.7	287,220	Common Stock
Dalton E. Smart	SVP Fin. - Global Controller	Exercise or conversion of derivative security received from the company (such as an option) at price $ 62.07 per share.	04 Feb 2026	4,000	14,604 (0%)	0%	62.1	248,280	Common Stock
Dalton E. Smart	SVP Fin. - Global Controller	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	04 Feb 2026	4,000	8,130	-		-	Stock Option (Right to Buy)
Dalton E. Smart	SVP Fin. - Global Controller	Sale of securities on an exchange or to another person at price $ 119.68 per share.	04 Feb 2026	4,000	10,604 (0%)	0%	119.7	478,700	Common Stock
Richard R. DeLuca	EVP&Pres, Merck Animal Heallth	Grant, award, or other acquisition of securities at price $ 107.40 per share.	26 Jan 2026	12,264	197,858 (0%)	0%	107.4	1,317,154	Common Stock
Robert M. Davis	Director, Chairman, CEO & President	Grant, award, or other acquisition of securities at price $ 107.40 per share.	26 Jan 2026	47,434	491,035 (0%)	0%	107.4	5,094,412	Common Stock
Sanat Chattopadhyay	Exe V-P & Pres. MMD	Grant, award, or other acquisition of securities at price $ 107.40 per share.	26 Jan 2026	13,880	13,880 (0%)	0%	107.4	1,490,712	Common Stock
Chirfi Guindo	Chief Marketing Officer	Grant, award, or other acquisition of securities at price $ 107.40 per share.	26 Jan 2026	9,865	100,615 (0%)	0%	107.4	1,059,501	Common Stock
Jennifer Zachary	EVP, General Counsel	Grant, award, or other acquisition of securities at price $ 107.40 per share.	26 Jan 2026	11,583	68,915 (0%)	0%	107.4	1,244,014	Common Stock
Caroline A. Litchfield	EVP & CFO	Grant, award, or other acquisition of securities at price $ 107.40 per share.	26 Jan 2026	15,852	90,192 (0%)	0%	107.4	1,702,505	Common Stock
David Michael Williams	EVP,Chief Info&Digital Officer	Grant, award, or other acquisition of securities at price $ 107.40 per share.	26 Jan 2026	6,112	30,837 (0%)	0%	107.4	656,429	Common Stock
Dean Y. Li	Executive VP & President, MRL	Grant, award, or other acquisition of securities at price $ 107.40 per share.	26 Jan 2026	20,469	102,270 (0%)	0%	107.4	2,198,371	Common Stock
Jannie Oosthuizen	President, U.S. Market	Grant, award, or other acquisition of securities at price $ 107.40 per share.	26 Jan 2026	5,026	36,197 (0%)	0%	107.4	539,792	Common Stock
Joseph Romanelli	President, Human Health Int?l	Grant, award, or other acquisition of securities at price $ 107.40 per share.	26 Jan 2026	5,703	28,739 (0%)	0%	107.4	612,502	Common Stock
Dalton E. Smart	SVP Fin. - Global Controller	Grant, award, or other acquisition of securities at price $ 107.40 per share.	26 Jan 2026	1,066	10,604 (0%)	0%	107.4	114,488	Common Stock
Thomas Henry Glocer	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	31 Dec 2025	463	107,075	-		-	Phantom Stock
Mary Ellen Coe	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	31 Dec 2025	285	29,231	-		-	Phantom Stock
Christine E. Seidman	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	31 Dec 2025	77	19,025	-		-	Phantom Stock
Cristal N. Downing	Chief Comm. & Public Afrs Ofcr	Sale of securities on an exchange or to another person at price $ 87.00 per share.	10 Nov 2025	7,085	0 (0%)	0%	87	616,395	Common Stock
David Michael Williams	EVP,Chief Info&Digital Officer	Sale of securities on an exchange or to another person at price $ 83.59 per share.	03 Nov 2025	8,614	24,578 (0%)	0%	83.6	720,040	Common Stock
Thomas Henry Glocer	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	30 Sep 2025	580	105,645	-		-	Phantom Stock
Mary Ellen Coe	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	30 Sep 2025	357	28,684	-		-	Phantom Stock
Christine E. Seidman	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	30 Sep 2025	96	18,775	-		-	Phantom Stock
David Michael Williams	EVP,Chief Info&Digital Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 79.29 per share.	04 Aug 2025	17,119	41,445 (0%)	0%	79.3	1,357,366	Common Stock
David Michael Williams	EVP,Chief Info&Digital Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	04 Aug 2025	17,119	0	-		-	Restricted Stock Unit
David Michael Williams	EVP,Chief Info&Digital Officer	Payment of exercise price or tax liability using portion of securities received from the company at price $ 79.29 per share.	04 Aug 2025	8,432	33,013 (0%)	0%	79.3	668,573	Common Stock
Chirfi Guindo	Chief Marketing Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	04 Aug 2025	36,903	0	-		-	Restricted Stock Unit
Chirfi Guindo	Chief Marketing Officer	Payment of exercise price or tax liability using portion of securities received from the company at price $ 79.29 per share.	04 Aug 2025	18,175	89,233 (0%)	0%	79.3	1,441,096	Common Stock
Chirfi Guindo	Chief Marketing Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 79.29 per share.	04 Aug 2025	36,903	107,408 (0%)	0%	79.3	2,926,039	Common Stock
Thomas Henry Glocer	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	30 Jun 2025	615	104,040	-		-	Phantom Stock
Mary Ellen Coe	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	30 Jun 2025	378	28,051	-		-	Phantom Stock
Christine E. Seidman	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	30 Jun 2025	102	18,495	-		-	Phantom Stock
Douglas M. Baker	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	30 May 2025	2,863	9,343	-		-	Phantom Stock
Inge G. Thulin	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	30 May 2025	2,863	24,764	-		-	Phantom Stock
Patricia F. Russo	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	30 May 2025	2,863	58,523	-		-	Phantom Stock
Thomas Henry Glocer	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	30 May 2025	2,863	103,424	-		-	Phantom Stock
Pamela J. Craig	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	30 May 2025	2,863	31,990	-		-	Phantom Stock
Risa J. Lavizzo-Mourey	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	30 May 2025	2,863	15,367	-		-	Phantom Stock
Kathy J. Warden	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	30 May 2025	2,863	15,503	-		-	Phantom Stock
Paul B. Rothman	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	30 May 2025	2,863	31,990	-		-	Phantom Stock
Mary Ellen Coe	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	30 May 2025	2,863	27,672	-		-	Phantom Stock
Christine E. Seidman	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	30 May 2025	2,863	18,393	-		-	Phantom Stock
Stephen L. Mayo	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	30 May 2025	2,863	12,539	-		-	Phantom Stock
Dalton E. Smart	SVP Fin. - Global Controller	Exercise or conversion of derivative security received from the company (such as an option) at price $ 83.18 per share.	03 May 2025	518	8,850 (0%)	0%	83.2	43,087	Common Stock
Dalton E. Smart	SVP Fin. - Global Controller	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	03 May 2025	1,532	0	-		-	Restricted Stock Unit
Dalton E. Smart	SVP Fin. - Global Controller	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	03 May 2025	518	0	-		-	Restricted Stock Unit
Dalton E. Smart	SVP Fin. - Global Controller	Payment of exercise price or tax liability using portion of securities received from the company at price $ 83.18 per share.	03 May 2025	588	9,538 (0%)	0%	83.2	48,910	Common Stock
Dalton E. Smart	SVP Fin. - Global Controller	Exercise or conversion of derivative security received from the company (such as an option) at price $ 83.18 per share.	03 May 2025	1,532	10,126 (0%)	0%	83.2	127,432	Common Stock
Dalton E. Smart	SVP Fin. - Global Controller	Payment of exercise price or tax liability using portion of securities received from the company at price $ 83.18 per share.	03 May 2025	256	8,594 (0%)	0%	83.2	21,294	Common Stock
Betty D. Larson	EVP, Chief HR Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 84.71 per share.	30 Apr 2025	11,350	11,350 (0%)	0%	84.7	961,459	Common Stock
Betty D. Larson	EVP, Chief HR Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	30 Apr 2025	11,350	22,700	-		-	Restricted Stock Unit
Betty D. Larson	EVP, Chief HR Officer	Payment of exercise price or tax liability using portion of securities received from the company at price $ 84.71 per share.	30 Apr 2025	5,153	6,197 (0%)	0%	84.7	436,511	Common Stock
Joseph Romanelli	President, Human Health Int?l	Payment of exercise price or tax liability using portion of securities received from the company at price $ 83.26 per share.	30 Apr 2025	1,115	22,945 (0%)	0%	83.3	92,835	Common Stock
Joseph Romanelli	President, Human Health Int?l	Exercise or conversion of derivative security received from the company (such as an option) at price $ 83.26 per share.	30 Apr 2025	2,262	24,060 (0%)	0%	83.3	188,334	Common Stock
Joseph Romanelli	President, Human Health Int?l	Payment of exercise price or tax liability using portion of securities received from the company at price $ 84.71 per share.	30 Apr 2025	1,017	21,798 (0%)	0%	84.7	86,150	Common Stock
Joseph Romanelli	President, Human Health Int?l	Exercise or conversion of derivative security received from the company (such as an option) at price $ 84.71 per share.	30 Apr 2025	2,063	22,815 (0%)	0%	84.7	174,757	Common Stock
Joseph Romanelli	President, Human Health Int?l	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	30 Apr 2025	2,262	2,262	-		-	Restricted Stock Unit
Joseph Romanelli	President, Human Health Int?l	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	30 Apr 2025	2,063	4,128	-		-	Restricted Stock Unit
Dalton E. Smart	SVP Fin. - Global Controller	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	30 Apr 2025	381	383	-		-	Restricted Stock Unit
Dalton E. Smart	SVP Fin. - Global Controller	Exercise or conversion of derivative security received from the company (such as an option) at price $ 83.26 per share.	30 Apr 2025	381	8,463 (0%)	0%	83.3	31,722	Common Stock
Dalton E. Smart	SVP Fin. - Global Controller	Payment of exercise price or tax liability using portion of securities received from the company at price $ 84.71 per share.	30 Apr 2025	159	8,082 (0%)	0%	84.7	13,469	Common Stock
Dalton E. Smart	SVP Fin. - Global Controller	Exercise or conversion of derivative security received from the company (such as an option) at price $ 84.71 per share.	30 Apr 2025	464	8,241 (0%)	0%	84.7	39,305	Common Stock
Dalton E. Smart	SVP Fin. - Global Controller	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	30 Apr 2025	464	929	-		-	Restricted Stock Unit
Dalton E. Smart	SVP Fin. - Global Controller	Payment of exercise price or tax liability using portion of securities received from the company at price $ 83.26 per share.	30 Apr 2025	131	8,332 (0%)	0%	83.3	10,907	Common Stock
Richard R. DeLuca	EVP&Pres, Merck Animal Heallth	Grant, award, or other acquisition of securities at price $ 0.00 per share.	29 Apr 2025	34,390	34,390	-		-	Stock Option (Right to Buy)
Richard R. DeLuca	EVP&Pres, Merck Animal Heallth	Grant, award, or other acquisition of securities at price $ 0.00 per share.	29 Apr 2025	7,555	7,555	-		-	Restricted Stock Unit
Robert M. Davis	Director, Chairman, CEO & President	Grant, award, or other acquisition of securities at price $ 0.00 per share.	29 Apr 2025	181,623	181,623	-		-	Stock Option (Right to Buy)
Robert M. Davis	Director, Chairman, CEO & President	Grant, award, or other acquisition of securities at price $ 0.00 per share.	29 Apr 2025	39,901	39,901	-		-	Restricted Stock Unit
Sanat Chattopadhyay	Exe V-P & Pres. MMD	Grant, award, or other acquisition of securities at price $ 0.00 per share.	29 Apr 2025	35,465	35,465	-		-	Stock Option (Right to Buy)
Sanat Chattopadhyay	Exe V-P & Pres. MMD	Grant, award, or other acquisition of securities at price $ 0.00 per share.	29 Apr 2025	7,791	7,791	-		-	Restricted Stock Unit
Chirfi Guindo	Chief Marketing Officer	Grant, award, or other acquisition of securities at price $ 0.00 per share.	29 Apr 2025	5,902	5,902	-		-	Restricted Stock Unit
Chirfi Guindo	Chief Marketing Officer	Grant, award, or other acquisition of securities at price $ 0.00 per share.	29 Apr 2025	26,867	26,867	-		-	Stock Option (Right to Buy)
Jennifer Zachary	EVP, General Counsel	Grant, award, or other acquisition of securities at price $ 0.00 per share.	29 Apr 2025	8,854	8,854	-		-	Restricted Stock Unit
Jennifer Zachary	EVP, General Counsel	Grant, award, or other acquisition of securities at price $ 0.00 per share.	29 Apr 2025	40,301	40,301	-		-	Stock Option (Right to Buy)
Caroline A. Litchfield	EVP & CFO	Grant, award, or other acquisition of securities at price $ 0.00 per share.	29 Apr 2025	53,735	53,735	-		-	Stock Option (Right to Buy)
Caroline A. Litchfield	EVP & CFO	Grant, award, or other acquisition of securities at price $ 0.00 per share.	29 Apr 2025	11,805	11,805	-		-	Restricted Stock Unit
David Michael Williams	EVP,Chief Info&Digital Officer	Grant, award, or other acquisition of securities at price $ 0.00 per share.	29 Apr 2025	18,807	18,807	-		-	Stock Option (Right to Buy)
David Michael Williams	EVP,Chief Info&Digital Officer	Grant, award, or other acquisition of securities at price $ 0.00 per share.	29 Apr 2025	4,132	4,132	-		-	Restricted Stock Unit
Dean Y. Li	Executive VP & President, MRL	Grant, award, or other acquisition of securities at price $ 0.00 per share.	29 Apr 2025	64,481	64,481	-		-	Stock Option (Right to Buy)
Dean Y. Li	Executive VP & President, MRL	Grant, award, or other acquisition of securities at price $ 0.00 per share.	29 Apr 2025	14,166	14,166	-		-	Restricted Stock Unit
Cristal N. Downing	Chief Comm. & Public Afrs Ofcr	Grant, award, or other acquisition of securities at price $ 0.00 per share.	29 Apr 2025	13,971	13,971	-		-	Stock Option (Right to Buy)
Cristal N. Downing	Chief Comm. & Public Afrs Ofcr	Grant, award, or other acquisition of securities at price $ 0.00 per share.	29 Apr 2025	3,069	3,069	-		-	Restricted Stock Unit
Jannie Oosthuizen	President, U.S. Market	Grant, award, or other acquisition of securities at price $ 0.00 per share.	29 Apr 2025	18,807	18,807	-		-	Stock Option (Right to Buy)
Jannie Oosthuizen	President, U.S. Market	Grant, award, or other acquisition of securities at price $ 0.00 per share.	29 Apr 2025	4,132	4,132	-		-	Restricted Stock Unit
Dalton E. Smart	SVP Fin. - Global Controller	Grant, award, or other acquisition of securities at price $ 0.00 per share.	29 Apr 2025	6,448	6,448	-		-	Stock Option (Right to Buy)
Dalton E. Smart	SVP Fin. - Global Controller	Grant, award, or other acquisition of securities at price $ 0.00 per share.	29 Apr 2025	2,833	2,833	-		-	Restricted Stock Unit
Dalton E. Smart	SVP Fin. - Global Controller	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	25 Apr 2025	5,000	0	-		-	Stock Option (Right to Buy)
Dalton E. Smart	SVP Fin. - Global Controller	Sale of securities on an exchange or to another person at price $ 82.76 per share.	25 Apr 2025	4,262	7,777 (0%)	0%	82.8	352,723	Common Stock
Dalton E. Smart	SVP Fin. - Global Controller	Exercise or conversion of derivative security received from the company (such as an option) at price $ 58.08 per share.	25 Apr 2025	5,000	12,039 (0%)	0%	58.1	290,400	Common Stock
Thomas Henry Glocer	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	31 Mar 2025	543	99,578	-		-	Phantom Stock
Mary Ellen Coe	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	31 Mar 2025	334	24,567	-		-	Phantom Stock
Christine E. Seidman	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	31 Mar 2025	90	15,377	-		-	Phantom Stock
Jannie Oosthuizen	President, U.S. Market	Sale of securities on an exchange or to another person at price $ 84.09 per share.	19 Feb 2025	8,500	30,705 (0%)	0%	84.1	714,745	Common Stock
David Michael Williams	EVP,Chief Info&Digital Officer	Sale of securities on an exchange or to another person at price $ 85.34 per share.	13 Feb 2025	6,000	24,123 (0%)	0%	85.3	512,057	Common Stock
Jannie Oosthuizen	President, U.S. Market	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	08 Feb 2025	13,002	0	-		-	Restricted Stock Unit
Jannie Oosthuizen	President, U.S. Market	Payment of exercise price or tax liability using portion of securities received from the company at price $ 87.28 per share.	08 Feb 2025	6,404	39,205 (0%)	0%	87.3	558,941	Common Stock
Jannie Oosthuizen	President, U.S. Market	Exercise or conversion of derivative security received from the company (such as an option) at price $ 87.28 per share.	08 Feb 2025	13,002	45,609 (0%)	0%	87.3	1,134,815	Common Stock
Inge G. Thulin	Director	Purchase of securities on an exchange or from another person at price $ 88.28 per share.	06 Feb 2025	2,832	2,932 (0%)	0%	88.3	250,000	Common Stock
Cristal N. Downing	Chief Comm. & Public Afrs Ofcr	Sale of securities on an exchange or to another person at price $ 88.76 per share.	06 Feb 2025	2,361	7,085 (0%)	0%	88.8	209,551	Common Stock
Douglas M. Baker	Director	Purchase of securities on an exchange or from another person at price $ 88.50 per share.	05 Feb 2025	15,000	16,000 (0%)	0%	88.5	1,327,500	Common Stock
Caroline A. Litchfield	EVP & CFO	Grant, award, or other acquisition of securities at price $ 97.94 per share.	27 Jan 2025	23,432	74,340 (0%)	0%	97.9	2,294,930	Common Stock
David Michael Williams	EVP,Chief Info&Digital Officer	Grant, award, or other acquisition of securities at price $ 97.94 per share.	27 Jan 2025	10,246	30,123 (0%)	0%	97.9	1,003,493	Common Stock
Dean Y. Li	Executive VP & President, MRL	Grant, award, or other acquisition of securities at price $ 97.94 per share.	27 Jan 2025	32,621	79,592 (0%)	0%	97.9	3,194,901	Common Stock
Cristal N. Downing	Chief Comm. & Public Afrs Ofcr	Grant, award, or other acquisition of securities at price $ 97.94 per share.	27 Jan 2025	9,446	9,446 (0%)	0%	97.9	925,141	Common Stock
Jannie Oosthuizen	President, U.S. Market	Grant, award, or other acquisition of securities at price $ 97.94 per share.	27 Jan 2025	8,664	32,607 (0%)	0%	97.9	848,552	Common Stock
Dalton E. Smart	SVP Fin. - Global Controller	Grant, award, or other acquisition of securities at price $ 97.94 per share.	27 Jan 2025	2,586	7,014 (0%)	0%	97.9	253,273	Common Stock
Richard R. DeLuca	EVP&Pres, Merck Animal Heallth	Grant, award, or other acquisition of securities at price $ 97.94 per share.	27 Jan 2025	25,438	178,992 (0%)	0%	97.9	2,491,398	Common Stock
Robert M. Davis	Director, Chairman, CEO & President	Grant, award, or other acquisition of securities at price $ 97.94 per share.	27 Jan 2025	95,275	443,601 (0%)	0%	97.9	9,331,234	Common Stock
Sanat Chattopadhyay	Exe V-P & Pres. MMD	Grant, award, or other acquisition of securities at price $ 97.94 per share.	27 Jan 2025	28,136	78,758 (0%)	0%	97.9	2,755,640	Common Stock
Chirfi Guindo	Chief Marketing Officer	Grant, award, or other acquisition of securities at price $ 97.94 per share.	27 Jan 2025	28,158	69,143 (0%)	0%	97.9	2,757,795	Common Stock
Jennifer Zachary	EVP, General Counsel	Grant, award, or other acquisition of securities at price $ 97.94 per share.	27 Jan 2025	25,423	55,285 (0%)	0%	97.9	2,489,929	Common Stock
Thomas Henry Glocer	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	30 Sep 2024	429	97,074	-		-	Phantom Stock
Mary Ellen Coe	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	30 Sep 2024	264	23,574	-		-	Phantom Stock
Christine E. Seidman	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	30 Sep 2024	71	14,977	-		-	Phantom Stock
Chirfi Guindo	Chief Marketing Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 115.20 per share.	05 Aug 2024	36,901	57,781 (0%)	0%	115.2	4,250,995	Common Stock
Chirfi Guindo	Chief Marketing Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	05 Aug 2024	36,901	36,903	-		-	Restricted Stock Unit
Chirfi Guindo	Chief Marketing Officer	Payment of exercise price or tax liability using portion of securities received from the company at price $ 115.20 per share.	05 Aug 2024	17,412	40,369 (0%)	0%	115.2	2,005,862	Common Stock
Thomas Henry Glocer	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	28 Jun 2024	393	96,063	-		-	Phantom Stock
Mary Ellen Coe	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	28 Jun 2024	242	23,169	-		-	Phantom Stock
Christine E. Seidman	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	28 Jun 2024	65	14,815	-		-	Phantom Stock
Douglas M. Baker	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	31 May 2024	1,752	6,281	-		-	Phantom Stock
Inge G. Thulin	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	31 May 2024	1,752	21,228	-		-	Phantom Stock
Patricia F. Russo	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	31 May 2024	1,752	53,951	-		-	Phantom Stock
Thomas Henry Glocer	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	31 May 2024	1,752	95,669	-		-	Phantom Stock
Pamela J. Craig	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	31 May 2024	1,752	28,233	-		-	Phantom Stock
Risa J. Lavizzo-Mourey	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	31 May 2024	1,752	12,120	-		-	Phantom Stock
Kathy J. Warden	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	31 May 2024	1,752	12,252	-		-	Phantom Stock
Paul B. Rothman	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	31 May 2024	1,752	28,233	-		-	Phantom Stock
Mary Ellen Coe	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	31 May 2024	1,752	22,927	-		-	Phantom Stock
Christine E. Seidman	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	31 May 2024	1,752	14,749	-		-	Phantom Stock
Stephen L. Mayo	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	31 May 2024	1,752	9,379	-		-	Phantom Stock
Richard R. DeLuca	EVP&Pres, Merck Animal Heallth	Payment of exercise price or tax liability using portion of securities received from the company at price $ 127.51 per share.	04 May 2024	13,360	150,359 (0%)	0%	127.5	1,703,534	Common Stock
Richard R. DeLuca	EVP&Pres, Merck Animal Heallth	Exercise or conversion of derivative security received from the company (such as an option) at price $ 127.51 per share.	04 May 2024	27,126	163,719 (0%)	0%	127.5	3,458,836	Common Stock
Richard R. DeLuca	EVP&Pres, Merck Animal Heallth	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	04 May 2024	27,126	0	-		-	Restricted Stock Unit
Michael A Klobuchar	EVP - Chief Strategy Officer	Payment of exercise price or tax liability using portion of securities received from the company at price $ 127.51 per share.	04 May 2024	437	23,621 (0%)	0%	127.5	55,722	Common Stock
Michael A Klobuchar	EVP - Chief Strategy Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 127.51 per share.	04 May 2024	887	24,058 (0%)	0%	127.5	113,101	Common Stock
Michael A Klobuchar	EVP - Chief Strategy Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	04 May 2024	887	0	-		-	Restricted Stock Unit
Jannie Oosthuizen	President, U.S. Market	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	04 May 2024	912	0	-		-	Restricted Stock Unit
Jannie Oosthuizen	President, U.S. Market	Payment of exercise price or tax liability using portion of securities received from the company at price $ 127.51 per share.	04 May 2024	450	23,820 (0%)	0%	127.5	57,380	Common Stock
Jannie Oosthuizen	President, U.S. Market	Exercise or conversion of derivative security received from the company (such as an option) at price $ 127.51 per share.	04 May 2024	912	24,270 (0%)	0%	127.5	116,289	Common Stock
Dalton E. Smart	SVP Fin. - Global Controller	Exercise or conversion of derivative security received from the company (such as an option) at price $ 128.26 per share.	03 May 2024	516	3,433 (0%)	0%	128.3	66,182	Common Stock
Dalton E. Smart	SVP Fin. - Global Controller	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	03 May 2024	612	0	-		-	Restricted Stock Unit
Dalton E. Smart	SVP Fin. - Global Controller	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	03 May 2024	1,530	1,532	-		-	Restricted Stock Unit
Dalton E. Smart	SVP Fin. - Global Controller	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	03 May 2024	516	518	-		-	Restricted Stock Unit
Dalton E. Smart	SVP Fin. - Global Controller	Payment of exercise price or tax liability using portion of securities received from the company at price $ 127.51 per share.	03 May 2024	302	4,428 (0%)	0%	127.5	38,508	Common Stock
Dalton E. Smart	SVP Fin. - Global Controller	Exercise or conversion of derivative security received from the company (such as an option) at price $ 127.51 per share.	03 May 2024	612	4,730 (0%)	0%	127.5	78,036	Common Stock
Dalton E. Smart	SVP Fin. - Global Controller	Payment of exercise price or tax liability using portion of securities received from the company at price $ 128.26 per share.	03 May 2024	590	4,118 (0%)	0%	128.3	75,673	Common Stock
Dalton E. Smart	SVP Fin. - Global Controller	Exercise or conversion of derivative security received from the company (such as an option) at price $ 128.26 per share.	03 May 2024	1,530	4,708 (0%)	0%	128.3	196,238	Common Stock
Dalton E. Smart	SVP Fin. - Global Controller	Payment of exercise price or tax liability using portion of securities received from the company at price $ 128.26 per share.	03 May 2024	255	3,178 (0%)	0%	128.3	32,706	Common Stock
David Michael Williams	EVP,Chief Info&Digital Officer	Grant, award, or other acquisition of securities at price $ 0.00 per share.	30 Apr 2024	16,406	16,406	-		-	Stock Option (Right to Buy)
Richard R. DeLuca	EVP&Pres, Merck Animal Heallth	Grant, award, or other acquisition of securities at price $ 0.00 per share.	30 Apr 2024	23,216	23,216	-		-	Restricted Stock Unit
Richard R. DeLuca	EVP&Pres, Merck Animal Heallth	Grant, award, or other acquisition of securities at price $ 0.00 per share.	30 Apr 2024	37,500	37,500	-		-	Stock Option (Right to Buy)
Robert M. Davis	Director, Chairman, CEO & President	Grant, award, or other acquisition of securities at price $ 0.00 per share.	30 Apr 2024	181,641	181,641	-		-	Stock Option (Right to Buy)
Sanat Chattopadhyay	Exe V-P & Pres. MMD	Grant, award, or other acquisition of securities at price $ 0.00 per share.	30 Apr 2024	38,672	38,672	-		-	Stock Option (Right to Buy)
Chirfi Guindo	Chief Marketing Officer	Grant, award, or other acquisition of securities at price $ 0.00 per share.	30 Apr 2024	29,297	29,297	-		-	Stock Option (Right to Buy)
Jennifer Zachary	EVP, General Counsel	Grant, award, or other acquisition of securities at price $ 0.00 per share.	30 Apr 2024	35,156	35,156	-		-	Stock Option (Right to Buy)
Caroline Litchfield	EVP & CFO	Grant, award, or other acquisition of securities at price $ 0.00 per share.	30 Apr 2024	49,805	49,805	-		-	Stock Option (Right to Buy)
Dean Y. Li	Executive VP & President, MRL	Grant, award, or other acquisition of securities at price $ 0.00 per share.	30 Apr 2024	65,625	65,625	-		-	Stock Option (Right to Buy)
Michael A Klobuchar	EVP - Chief Strategy Officer	Grant, award, or other acquisition of securities at price $ 0.00 per share.	30 Apr 2024	20,508	20,508	-		-	Stock Option (Right to Buy)
Cristal N. Downing	Chief Comm. & Public Afrs Ofcr	Grant, award, or other acquisition of securities at price $ 0.00 per share.	30 Apr 2024	15,234	15,234	-		-	Stock Option (Right to Buy)
Jannie Oosthuizen	President, U.S. Market	Grant, award, or other acquisition of securities at price $ 0.00 per share.	30 Apr 2024	20,508	20,508	-		-	Stock Option (Right to Buy)
Joseph Romanelli	President, Human Health Int?l	Grant, award, or other acquisition of securities at price $ 0.00 per share.	30 Apr 2024	6,191	6,191	-		-	Restricted Stock Unit
Joseph Romanelli	President, Human Health Int?l	Payment of exercise price or tax liability using portion of securities received from the company at price $ 128.80 per share.	30 Apr 2024	1,115	20,716 (0%)	0%	128.8	143,612	Common Stock
Joseph Romanelli	President, Human Health Int?l	Exercise or conversion of derivative security received from the company (such as an option) at price $ 128.80 per share.	30 Apr 2024	2,262	21,831 (0%)	0%	128.8	291,346	Common Stock
Joseph Romanelli	President, Human Health Int?l	Grant, award, or other acquisition of securities at price $ 0.00 per share.	30 Apr 2024	23,438	23,438	-		-	Stock Option (Right to Buy)
Joseph Romanelli	President, Human Health Int?l	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	30 Apr 2024	2,262	4,524	-		-	Restricted Stock Unit
Dalton E. Smart	SVP Fin. - Global Controller	Exercise or conversion of derivative security received from the company (such as an option) at price $ 128.80 per share.	30 Apr 2024	381	3,048 (0%)	0%	128.8	49,073	Common Stock
Dalton E. Smart	SVP Fin. - Global Controller	Payment of exercise price or tax liability using portion of securities received from the company at price $ 128.80 per share.	30 Apr 2024	131	2,917 (0%)	0%	128.8	16,873	Common Stock
Dalton E. Smart	SVP Fin. - Global Controller	Grant, award, or other acquisition of securities at price $ 0.00 per share.	30 Apr 2024	1,393	1,393	-		-	Restricted Stock Unit
Dalton E. Smart	SVP Fin. - Global Controller	Grant, award, or other acquisition of securities at price $ 0.00 per share.	30 Apr 2024	7,031	7,031	-		-	Stock Option (Right to Buy)
Dalton E. Smart	SVP Fin. - Global Controller	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	30 Apr 2024	381	764	-		-	Restricted Stock Unit
Betty D. Larson	EVP, Chief HR Officer	Grant, award, or other acquisition of securities at price $ 0.00 per share.	30 Apr 2024	34,050	34,050	-		-	Restricted Stock Unit
Betty D. Larson	EVP, Chief HR Officer	Grant, award, or other acquisition of securities at price $ 0.00 per share.	30 Apr 2024	58,594	58,594	-		-	Stock Option (Right to Buy)
Betty D. Larson	EVP, Chief HR Officer	Grant, award, or other acquisition of securities at price $ 0.00 per share.	30 Apr 2024	31,055	31,055	-		-	Stock Option (Right to Buy)
Peter C. Wendell	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	28 Mar 2024	227	124,752	-		-	Phantom Stock
Thomas Henry Glocer	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	28 Mar 2024	341	93,360	-		-	Phantom Stock
Mary Ellen Coe	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	28 Mar 2024	227	21,049	-		-	Phantom Stock
Christine E. Seidman	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	28 Mar 2024	61	12,920	-		-	Phantom Stock
Litchfield Caroline	EVP & CFO	Exercise or conversion of derivative security received from the company (such as an option) at price $ 58.08 per share.	14 Feb 2024	38,291	89,199 (0%)	0%	58.1	2,223,941	Common Stock
Litchfield Caroline	EVP & CFO	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	14 Feb 2024	38,291	0	-		-	Stock Option (Right to Buy)
Caroline Litchfield	EVP & CFO	Sale of securities on an exchange or to another person at price $ 125.50 per share.	14 Feb 2024	38,291	50,908 (0%)	0%	125.5	4,805,521	Common Stock
Joseph Romanelli	President, Human Health Int?l	Sale of securities on an exchange or to another person at price $ 124.89 per share.	13 Feb 2024	1,000	19,569 (0%)	0%	124.9	124,888	Common Stock
M. Davis Robert	Director, Chairman, CEO & President	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	13 Feb 2024	108,491	181,781	-		-	Stock Option (Right to Buy)
M. Robert Davis	Director, Chairman, CEO & President	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	13 Feb 2024	41,509	83,020	-		-	Stock Option (Right to Buy)
Robert Davis M.	Director, Chairman, CEO & President	Exercise or conversion of derivative security received from the company (such as an option) at price $ 75.36 per share.	13 Feb 2024	41,509	389,835 (0%)	0%	75.4	3,128,118	Common Stock
Robert M. Davis	Director, Chairman, CEO & President	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	13 Feb 2024	85,021	96,760	-		-	Stock Option (Right to Buy)
Robert M. Davis	Director, Chairman, CEO & President	Sale of securities on an exchange or to another person at price $ 126.37 per share.	13 Feb 2024	25,324	348,326 (0%)	0%	126.4	3,200,277	Common Stock
Davis Robert M.	Director, Chairman, CEO & President	Sale of securities on an exchange or to another person at price $ 125.40 per share.	13 Feb 2024	85,021	348,326 (0%)	0%	125.4	10,661,574	Common Stock
Davis Robert M.	Director, Chairman, CEO & President	Exercise or conversion of derivative security received from the company (such as an option) at price $ 73.73 per share.	13 Feb 2024	108,491	498,326 (0%)	0%	73.7	7,999,041	Common Stock
Robert Davis M.	Director, Chairman, CEO & President	Sale of securities on an exchange or to another person at price $ 125.74 per share.	13 Feb 2024	124,676	373,650 (0%)	0%	125.7	15,677,147	Common Stock
Robert M. Davis	Director, Chairman, CEO & President	Exercise or conversion of derivative security received from the company (such as an option) at price $ 73.73 per share.	13 Feb 2024	85,021	433,347 (0%)	0%	73.7	6,268,598	Common Stock
Dean Li Y.	Executive VP & President, MRL	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	09 Feb 2024	14,702	0	-		-	Stock Option (Right to Buy)
Li Dean Y.	Executive VP & President, MRL	Exercise or conversion of derivative security received from the company (such as an option) at price $ 62.07 per share.	09 Feb 2024	14,702	60,944 (0%)	0%	62.1	912,553	Common Stock
Y. Dean Li	Executive VP & President, MRL	Sale of securities on an exchange or to another person at price $ 125.50 per share.	09 Feb 2024	14,702	46,242 (0%)	0%	125.5	1,845,083	Common Stock
Williams David Michael	EVP,Chief Info&Digital Officer	Sale of securities on an exchange or to another person at price $ 127.57 per share.	07 Feb 2024	1,451	19,811 (0%)	0%	127.6	185,108	Common Stock
Jannie Oosthuizen	President, U.S. Market	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	02 Feb 2024	7,045	7,049	-		-	Stock Option (Right to Buy)
Jannie Oosthuizen	President, U.S. Market	Exercise or conversion of derivative security received from the company (such as an option) at price $ 75.36 per share.	02 Feb 2024	6,773	28,122 (0%)	0%	75.4	510,413	Common Stock
Steven Mizell C.	EVP, Chief HR Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	02 Feb 2024	32,170	22,088	-		-	Stock Option (Right to Buy)
Zachary Jennifer	EVP, General Counsel	Exercise or conversion of derivative security received from the company (such as an option) at price $ 87.10 per share.	02 Feb 2024	19,417	78,556 (0%)	0%	87.1	1,691,221	Common Stock
Jannie Oosthuizen	President, U.S. Market	Sale of securities on an exchange or to another person at price $ 127.18 per share.	02 Feb 2024	18,959	23,327 (0%)	0%	127.2	2,411,111	Common Stock
C. Steven Mizell	EVP, Chief HR Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	02 Feb 2024	824	0	-		-	Stock Option (Right to Buy)
Mizell Steven C.	EVP, Chief HR Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 70.71 per share.	02 Feb 2024	824	42,143 (0%)	0%	70.7	58,265	Common Stock
Oosthuizen Jannie	President, U.S. Market	Exercise or conversion of derivative security received from the company (such as an option) at price $ 73.73 per share.	02 Feb 2024	7,045	35,167 (0%)	0%	73.7	519,428	Common Stock
Jannie Oosthuizen	President, U.S. Market	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	02 Feb 2024	7,119	14,240	-		-	Stock Option (Right to Buy)
Jennifer Zachary	EVP, General Counsel	Sale of securities on an exchange or to another person at price $ 126.97 per share.	02 Feb 2024	49,499	29,057 (0%)	0%	127.0	6,284,779	Common Stock
Zachary Jennifer	EVP, General Counsel	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	02 Feb 2024	19,417	38,835	-		-	Stock Option (Right to Buy)
Mizell Steven C.	EVP, Chief HR Officer	Sale of securities on an exchange or to another person at price $ 126.65 per share.	02 Feb 2024	50,694	23,619 (0%)	0%	126.6	6,420,349	Common Stock
C. Mizell Steven	EVP, Chief HR Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 73.73 per share.	02 Feb 2024	32,170	74,313 (0%)	0%	73.7	2,371,894	Common Stock
Jannie Oosthuizen	President, U.S. Market	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	02 Feb 2024	6,773	0	-		-	Stock Option (Right to Buy)
Jannie Oosthuizen	President, U.S. Market	Exercise or conversion of derivative security received from the company (such as an option) at price $ 87.10 per share.	02 Feb 2024	7,119	42,286 (0%)	0%	87.1	620,065	Common Stock
Smart E. Dalton	SVP Fin. - Global Controller	Grant, award, or other acquisition of securities at price $ 119.43 per share.	22 Jan 2024	2,661	2,667 (0%)	0%	119.4	317,803	Common Stock
Klobuchar A Michael	EVP - Chief Strategy Officer	Grant, award, or other acquisition of securities at price $ 119.43 per share.	22 Jan 2024	3,896	23,098 (0%)	0%	119.4	465,299	Common Stock
M. Davis Robert	Director, Chairman, CEO & President	Grant, award, or other acquisition of securities at price $ 119.43 per share.	22 Jan 2024	76,510	348,326 (0%)	0%	119.4	9,137,589	Common Stock
Jannie Oosthuizen	President, U.S. Market	Grant, award, or other acquisition of securities at price $ 119.43 per share.	22 Jan 2024	3,133	21,349 (0%)	0%	119.4	374,174	Common Stock
Zachary Jennifer	EVP, General Counsel	Grant, award, or other acquisition of securities at price $ 119.43 per share.	22 Jan 2024	23,298	59,139 (0%)	0%	119.4	2,782,480	Common Stock
Chattopadhyay Sanat	Exe V-P & Pres. MMD	Grant, award, or other acquisition of securities at price $ 119.43 per share.	22 Jan 2024	26,716	26,716 (0%)	0%	119.4	3,190,692	Common Stock
Litchfield Caroline	EVP & CFO	Grant, award, or other acquisition of securities at price $ 119.43 per share.	22 Jan 2024	19,208	50,908 (0%)	0%	119.4	2,294,011	Common Stock
David Michael Williams	EVP,Chief Info&Digital Officer	Grant, award, or other acquisition of securities at price $ 119.43 per share.	22 Jan 2024	10,196	21,262 (0%)	0%	119.4	1,217,708	Common Stock
Y. Dean Li	Executive VP & President, MRL	Grant, award, or other acquisition of securities at price $ 119.43 per share.	22 Jan 2024	25,760	46,242 (0%)	0%	119.4	3,076,517	Common Stock
Mizell C. Steven	EVP, Chief HR Officer	Grant, award, or other acquisition of securities at price $ 119.43 per share.	22 Jan 2024	18,384	41,319 (0%)	0%	119.4	2,195,601	Common Stock
DeLuca Richard R.	EVP&Pres, Merck Animal Heallth	Grant, award, or other acquisition of securities at price $ 119.43 per share.	22 Jan 2024	23,296	135,782 (0%)	0%	119.4	2,782,241	Common Stock
Mary Ellen Coe	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	29 Dec 2023	275	20,688	-		-	Phantom Stock
Christine Seidman E.	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	29 Dec 2023	74	12,775	-		-	Phantom Stock
Peter C. Wendell	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	29 Dec 2023	275	123,715	-		-	Phantom Stock
Henry Glocer Thomas	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	29 Dec 2023	412	92,419	-		-	Phantom Stock
Jannie Oosthuizen	President, U.S. Market	Sale of securities on an exchange or to another person at price $ 102.38 per share.	09 Nov 2023	2,081	18,190 (0%)	0%	102.4	213,061	Common Stock
Richard R. DeLuca	EVP&Pres, Merck Animal Heallth	Sale of securities on an exchange or to another person at price $ 105.03 per share.	08 Nov 2023	43,823	111,763 (0%)	0%	105.0	4,602,668	Common Stock
Cristal N. Downing	Chief Comm. & Public Afrs Ofcr	Grant, award, or other acquisition of securities at price $ 0.00 per share.	31 Oct 2023	11,685	11,685	-		-	Restricted Stock Unit
Jannie Oosthuizen	President, U.S. Market	Exercise or conversion of derivative security received from the company (such as an option) at price $ 102.82 per share.	30 Oct 2023	915	20,722 (0%)	0%	102.8	94,080	Common Stock
Jannie Oosthuizen	President, U.S. Market	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	30 Oct 2023	915	0	-		-	Restricted Stock Unit
Jannie Oosthuizen	President, U.S. Market	Payment of exercise price or tax liability using portion of securities received from the company at price $ 102.82 per share.	30 Oct 2023	451	20,271 (0%)	0%	102.8	46,372	Common Stock
Peter C. Wendell	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	29 Sep 2023	291	122,580	-		-	Phantom Stock
Thomas Henry Glocer	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	29 Sep 2023	437	91,370	-		-	Phantom Stock
Mary Ellen Coe	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	29 Sep 2023	291	20,272	-		-	Phantom Stock
Christine E. Seidman	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	29 Sep 2023	78	12,612	-		-	Phantom Stock
Steven C. Mizell	EVP, Chief HR Officer	Sale of securities on an exchange or to another person at price $ 109.01 per share.	14 Aug 2023	4,250	22,935 (0%)	0%	109.0	463,293	Common Stock
Steven C. Mizell	EVP, Chief HR Officer	Sale of securities on an exchange or to another person at price $ 105.49 per share.	03 Aug 2023	4,500	27,185 (0%)	0%	105.5	474,701	Common Stock
Chirfi Guindo	Chief Marketing Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 105.70 per share.	03 Aug 2023	36,901	38,341 (0%)	0%	105.7	3,900,436	Common Stock
Chirfi Guindo	Chief Marketing Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	03 Aug 2023	36,901	73,804	-		-	Restricted Stock Unit
Chirfi Guindo	Chief Marketing Officer	Payment of exercise price or tax liability using portion of securities received from the company at price $ 105.70 per share.	03 Aug 2023	17,989	20,352 (0%)	0%	105.7	1,901,437	Common Stock
Joseph Romanelli	President, Human Health Int?l	Sale of securities on an exchange or to another person at price $ 107.37 per share.	02 Aug 2023	59	0 (0%)	0%	107.4	6,335	Common Stock
Joseph Romanelli	President, Human Health Int?l	Sale of securities on an exchange or to another person at price $ 107.37 per share.	02 Aug 2023	30	20,569 (0%)	0%	107.4	3,221	Common Stock
Peter C. Wendell	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	30 Jun 2023	259	121,484	-		-	Phantom Stock
Thomas Henry Glocer	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	30 Jun 2023	389	90,340	-		-	Phantom Stock
Mary Ellen Coe	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	30 Jun 2023	259	19,851	-		-	Phantom Stock
Christine E. Seidman	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	30 Jun 2023	70	12,451	-		-	Phantom Stock
Douglas M. Baker	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	26 May 2023	1,980	4,412	-		-	Phantom Stock
Inge G. Thulin	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	26 May 2023	1,980	18,973	-		-	Phantom Stock
Patricia F. Russo	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	26 May 2023	1,980	50,851	-		-	Phantom Stock
Peter C. Wendell	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	26 May 2023	1,980	121,224	-		-	Phantom Stock
Thomas Henry Glocer	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	26 May 2023	1,980	89,950	-		-	Phantom Stock
Pamela J. Craig	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	26 May 2023	1,980	25,797	-		-	Phantom Stock
Risa J. Lavizzo-Mourey	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	26 May 2023	1,980	10,100	-		-	Phantom Stock
Kathy J. Warden	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	26 May 2023	1,980	10,228	-		-	Phantom Stock
Paul B. Rothman	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	26 May 2023	1,980	25,797	-		-	Phantom Stock
Mary Ellen Coe	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	26 May 2023	1,980	19,591	-		-	Phantom Stock
Christine E. Seidman	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	26 May 2023	1,980	12,381	-		-	Phantom Stock
Stephen L. Mayo	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	26 May 2023	1,980	7,430	-		-	Phantom Stock
Jennifer Zachary	EVP, General Counsel	Sale of securities on an exchange or to another person at price $ 117.59 per share.	04 May 2023	19,141	35,127 (0%)	0%	117.6	2,250,834	Common Stock
Michael A Klobuchar	EVP - Chief Strategy Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 118.22 per share.	04 May 2023	885	19,476 (0%)	0%	118.2	104,625	Common Stock
Michael A Klobuchar	EVP - Chief Strategy Officer	Payment of exercise price or tax liability using portion of securities received from the company at price $ 118.22 per share.	04 May 2023	436	19,040 (0%)	0%	118.2	51,544	Common Stock
Michael A Klobuchar	EVP - Chief Strategy Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	04 May 2023	885	887	-		-	Restricted Stock Unit
Jannie Oosthuizen	President, U.S. Market	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	04 May 2023	907	912	-		-	Restricted Stock Unit
Jannie Oosthuizen	President, U.S. Market	Payment of exercise price or tax liability using portion of securities received from the company at price $ 118.22 per share.	04 May 2023	447	19,759 (0%)	0%	118.2	52,844	Common Stock
Jannie Oosthuizen	President, U.S. Market	Exercise or conversion of derivative security received from the company (such as an option) at price $ 118.22 per share.	04 May 2023	907	20,206 (0%)	0%	118.2	107,226	Common Stock
Steven C. Mizell	EVP, Chief HR Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 75.36 per share.	03 May 2023	15,000	61,085 (0%)	0%	75.4	1,130,400	Common Stock
Steven C. Mizell	EVP, Chief HR Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 77.62 per share.	03 May 2023	13,000	46,085 (0%)	0%	77.6	1,009,060	Common Stock
Steven C. Mizell	EVP, Chief HR Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	03 May 2023	12,000	32,151	-		-	Stock Option (Right to Buy)
Steven C. Mizell	EVP, Chief HR Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	03 May 2023	15,000	44,151	-		-	Stock Option (Right to Buy)
Steven C. Mizell	EVP, Chief HR Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	03 May 2023	12,000	54,258	-		-	Stock Option (Right to Buy)
Steven C. Mizell	EVP, Chief HR Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	03 May 2023	13,000	39,366	-		-	Stock Option (Right to Buy)
Steven C. Mizell	EVP, Chief HR Officer	Sale of securities on an exchange or to another person at price $ 119.01 per share.	03 May 2023	13,400	31,685 (0%)	0%	119.0	1,594,734	Common Stock
Steven C. Mizell	EVP, Chief HR Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 75.36 per share.	03 May 2023	12,000	45,085 (0%)	0%	75.4	904,320	Common Stock
Steven C. Mizell	EVP, Chief HR Officer	Sale of securities on an exchange or to another person at price $ 119.01 per share.	03 May 2023	15,000	45,085 (0%)	0%	119.0	1,785,122	Common Stock
Steven C. Mizell	EVP, Chief HR Officer	Sale of securities on an exchange or to another person at price $ 119.01 per share.	03 May 2023	12,000	33,085 (0%)	0%	119.0	1,428,089	Common Stock
Steven C. Mizell	EVP, Chief HR Officer	Sale of securities on an exchange or to another person at price $ 119.01 per share.	03 May 2023	13,000	60,085 (0%)	0%	119.0	1,547,112	Common Stock
Steven C. Mizell	EVP, Chief HR Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 73.73 per share.	03 May 2023	12,000	73,085 (0%)	0%	73.7	884,760	Common Stock
Rita A. Karachun	Sr. VP Fince-Global Controller	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	03 May 2023	949	951	-		-	Restricted Stock Unit
Rita A. Karachun	Sr. VP Fince-Global Controller	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	03 May 2023	15,875	0	-		-	Stock Option (Right to Buy)
Rita A. Karachun	Sr. VP Fince-Global Controller	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	03 May 2023	803	1,608	-		-	Restricted Stock Unit
Rita A. Karachun	Sr. VP Fince-Global Controller	Sale of securities on an exchange or to another person at price $ 117.53 per share.	03 May 2023	15,875	45,709 (0%)	0%	117.5	1,865,843	Common Stock
Rita A. Karachun	Sr. VP Fince-Global Controller	Exercise or conversion of derivative security received from the company (such as an option) at price $ 62.07 per share.	03 May 2023	15,875	61,584 (0%)	0%	62.1	985,361	Common Stock
Rita A. Karachun	Sr. VP Fince-Global Controller	Payment of exercise price or tax liability using portion of securities received from the company at price $ 118.22 per share.	03 May 2023	326	45,709 (0%)	0%	118.2	38,540	Common Stock
Rita A. Karachun	Sr. VP Fince-Global Controller	Exercise or conversion of derivative security received from the company (such as an option) at price $ 118.22 per share.	03 May 2023	949	46,035 (0%)	0%	118.2	112,191	Common Stock
Rita A. Karachun	Sr. VP Fince-Global Controller	Payment of exercise price or tax liability using portion of securities received from the company at price $ 117.89 per share.	03 May 2023	276	45,086 (0%)	0%	117.9	32,538	Common Stock
Rita A. Karachun	Sr. VP Fince-Global Controller	Exercise or conversion of derivative security received from the company (such as an option) at price $ 117.89 per share.	03 May 2023	803	45,362 (0%)	0%	117.9	94,666	Common Stock
Lisa LeCointe-Cephas	SVP Chief Ethics & Com Officer	Payment of exercise price or tax liability using portion of securities received from the company at price $ 117.89 per share.	03 May 2023	236	4,607 (0%)	0%	117.9	27,822	Common Stock
Lisa LeCointe-Cephas	SVP Chief Ethics & Com Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	03 May 2023	813	816	-		-	Restricted Stock Unit
Lisa LeCointe-Cephas	SVP Chief Ethics & Com Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	03 May 2023	689	1,378	-		-	Restricted Stock Unit
Lisa LeCointe-Cephas	SVP Chief Ethics & Com Officer	Payment of exercise price or tax liability using portion of securities received from the company at price $ 118.22 per share.	03 May 2023	279	5,141 (0%)	0%	118.2	32,983	Common Stock
Lisa LeCointe-Cephas	SVP Chief Ethics & Com Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 118.22 per share.	03 May 2023	813	5,420 (0%)	0%	118.2	96,113	Common Stock
Lisa LeCointe-Cephas	SVP Chief Ethics & Com Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 117.89 per share.	03 May 2023	689	4,843 (0%)	0%	117.9	81,226	Common Stock
Richard R. DeLuca	EVP&Pres, Merck Animal Heallth	Grant, award, or other acquisition of securities at price $ 0.00 per share.	02 May 2023	44,260	44,260	-		-	Stock Option (Right to Buy)
Robert M. Davis	Director, Chairman, CEO & President	Grant, award, or other acquisition of securities at price $ 0.00 per share.	02 May 2023	186,722	186,722	-		-	Stock Option (Right to Buy)
Steven C. Mizell	EVP, Chief HR Officer	Grant, award, or other acquisition of securities at price $ 0.00 per share.	02 May 2023	29,046	29,046	-		-	Stock Option (Right to Buy)
Rita A. Karachun	Sr. VP Fince-Global Controller	Grant, award, or other acquisition of securities at price $ 0.00 per share.	02 May 2023	1,781	1,781	-		-	Restricted Stock Unit
Rita A. Karachun	Sr. VP Fince-Global Controller	Grant, award, or other acquisition of securities at price $ 0.00 per share.	02 May 2023	9,682	9,682	-		-	Stock Option (Right to Buy)
Sanat Chattopadhyay	Exe V-P & Pres. MMD	Grant, award, or other acquisition of securities at price $ 0.00 per share.	02 May 2023	45,643	45,643	-		-	Stock Option (Right to Buy)
Chirfi Guindo	Chief Marketing Officer	Grant, award, or other acquisition of securities at price $ 0.00 per share.	02 May 2023	34,578	34,578	-		-	Stock Option (Right to Buy)
Jennifer Zachary	EVP, General Counsel	Grant, award, or other acquisition of securities at price $ 0.00 per share.	02 May 2023	41,494	41,494	-		-	Stock Option (Right to Buy)
Caroline Litchfield	EVP & CFO	Grant, award, or other acquisition of securities at price $ 0.00 per share.	02 May 2023	58,783	58,783	-		-	Stock Option (Right to Buy)
David Michael Williams	EVP,Chief Info&Digital Officer	Grant, award, or other acquisition of securities at price $ 0.00 per share.	02 May 2023	19,364	19,364	-		-	Stock Option (Right to Buy)
Dean Y. Li	Executive VP & President, MRL	Grant, award, or other acquisition of securities at price $ 0.00 per share.	02 May 2023	77,455	77,455	-		-	Stock Option (Right to Buy)
Lisa LeCointe-Cephas	SVP Chief Ethics & Com Officer	Grant, award, or other acquisition of securities at price $ 0.00 per share.	02 May 2023	9,682	9,682	-		-	Stock Option (Right to Buy)
Lisa LeCointe-Cephas	SVP Chief Ethics & Com Officer	Grant, award, or other acquisition of securities at price $ 0.00 per share.	02 May 2023	1,781	1,781	-		-	Restricted Stock Unit
Michael A Klobuchar	EVP - Chief Strategy Officer	Grant, award, or other acquisition of securities at price $ 0.00 per share.	02 May 2023	20,747	20,747	-		-	Stock Option (Right to Buy)
Cristal N. Downing	Chief Comm. & Public Afrs Ofcr	Grant, award, or other acquisition of securities at price $ 0.00 per share.	02 May 2023	17,981	17,981	-		-	Stock Option (Right to Buy)
Jannie Oosthuizen	President, U.S. Market	Grant, award, or other acquisition of securities at price $ 0.00 per share.	02 May 2023	20,747	20,747	-		-	Stock Option (Right to Buy)
Joseph Romanelli	President, Human Health Int?l	Grant, award, or other acquisition of securities at price $ 0.00 per share.	02 May 2023	6,786	6,786	-		-	Restricted Stock Unit
Joseph Romanelli	President, Human Health Int?l	Grant, award, or other acquisition of securities at price $ 0.00 per share.	02 May 2023	23,513	23,513	-		-	Stock Option (Right to Buy)
Rita A. Karachun	Sr. VP Fince-Global Controller	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	01 May 2023	930	0	-		-	Restricted Stock Unit
Rita A. Karachun	Sr. VP Fince-Global Controller	Exercise or conversion of derivative security received from the company (such as an option) at price $ 115.47 per share.	01 May 2023	930	44,878 (0%)	0%	115.5	107,387	Common Stock
Rita A. Karachun	Sr. VP Fince-Global Controller	Payment of exercise price or tax liability using portion of securities received from the company at price $ 115.47 per share.	01 May 2023	319	44,559 (0%)	0%	115.5	36,835	Common Stock
Caroline Litchfield	EVP & CFO	Payment of exercise price or tax liability using portion of securities received from the company at price $ 115.47 per share.	01 May 2023	427	31,691 (0%)	0%	115.5	49,306	Common Stock
Caroline Litchfield	EVP & CFO	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	01 May 2023	866	0	-		-	Restricted Stock Unit
Caroline Litchfield	EVP & CFO	Exercise or conversion of derivative security received from the company (such as an option) at price $ 115.47 per share.	01 May 2023	866	32,118 (0%)	0%	115.5	99,997	Common Stock
David Michael Williams	EVP,Chief Info&Digital Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 115.47 per share.	01 May 2023	577	12,730 (0%)	0%	115.5	66,626	Common Stock
David Michael Williams	EVP,Chief Info&Digital Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	01 May 2023	6,035	0	-		-	Stock Option (Right to Buy)
David Michael Williams	EVP,Chief Info&Digital Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	01 May 2023	577	0	-		-	Restricted Stock Unit
David Michael Williams	EVP,Chief Info&Digital Officer	Sale of securities on an exchange or to another person at price $ 116.82 per share.	01 May 2023	7,509	11,058 (0%)	0%	116.8	877,222	Common Stock
David Michael Williams	EVP,Chief Info&Digital Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 56.04 per share.	01 May 2023	6,035	18,567 (0%)	0%	56.0	338,201	Common Stock
David Michael Williams	EVP,Chief Info&Digital Officer	Payment of exercise price or tax liability using portion of securities received from the company at price $ 115.47 per share.	01 May 2023	198	12,532 (0%)	0%	115.5	22,863	Common Stock
Dean Y. Li	Executive VP & President, MRL	Payment of exercise price or tax liability using portion of securities received from the company at price $ 115.47 per share.	01 May 2023	524	20,471 (0%)	0%	115.5	60,506	Common Stock
Dean Y. Li	Executive VP & President, MRL	Exercise or conversion of derivative security received from the company (such as an option) at price $ 115.47 per share.	01 May 2023	1,062	20,995 (0%)	0%	115.5	122,629	Common Stock
Dean Y. Li	Executive VP & President, MRL	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	01 May 2023	1,062	0	-		-	Restricted Stock Unit
Lisa LeCointe-Cephas	SVP Chief Ethics & Com Officer	Payment of exercise price or tax liability using portion of securities received from the company at price $ 115.47 per share.	01 May 2023	221	4,154 (0%)	0%	115.5	25,519	Common Stock
Lisa LeCointe-Cephas	SVP Chief Ethics & Com Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 115.47 per share.	01 May 2023	643	4,375 (0%)	0%	115.5	74,247	Common Stock
Lisa LeCointe-Cephas	SVP Chief Ethics & Com Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	01 May 2023	643	0	-		-	Restricted Stock Unit
Michael A Klobuchar	EVP - Chief Strategy Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	01 May 2023	866	0	-		-	Restricted Stock Unit
Michael A Klobuchar	EVP - Chief Strategy Officer	Payment of exercise price or tax liability using portion of securities received from the company at price $ 115.47 per share.	01 May 2023	427	18,591 (0%)	0%	115.5	49,306	Common Stock
Michael A Klobuchar	EVP - Chief Strategy Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 115.47 per share.	01 May 2023	866	18,901 (0%)	0%	115.5	99,997	Common Stock
Jannie Oosthuizen	President, U.S. Market	Payment of exercise price or tax liability using portion of securities received from the company at price $ 115.47 per share.	01 May 2023	427	19,299 (0%)	0%	115.5	49,306	Common Stock
Jannie Oosthuizen	President, U.S. Market	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	01 May 2023	866	0	-		-	Restricted Stock Unit
Jannie Oosthuizen	President, U.S. Market	Exercise or conversion of derivative security received from the company (such as an option) at price $ 115.47 per share.	01 May 2023	866	19,726 (0%)	0%	115.5	99,997	Common Stock
Richard R. DeLuca	EVP&Pres, Merck Animal Heallth	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	28 Apr 2023	66,163	0	-		-	Stock Option (Right to Buy)
Richard R. DeLuca	EVP&Pres, Merck Animal Heallth	Exercise or conversion of derivative security received from the company (such as an option) at price $ 56.04 per share.	28 Apr 2023	75,436	229,928 (0%)	0%	56.0	4,227,433	Common Stock
Richard R. DeLuca	EVP&Pres, Merck Animal Heallth	Exercise or conversion of derivative security received from the company (such as an option) at price $ 62.07 per share.	28 Apr 2023	66,163	220,655 (0%)	0%	62.1	4,106,737	Common Stock
Richard R. DeLuca	EVP&Pres, Merck Animal Heallth	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	28 Apr 2023	75,436	0	-		-	Stock Option (Right to Buy)
Richard R. DeLuca	EVP&Pres, Merck Animal Heallth	Sale of securities on an exchange or to another person at price $ 116.03 per share.	28 Apr 2023	75,436	154,492 (0%)	0%	116.0	8,752,749	Common Stock
Richard R. DeLuca	EVP&Pres, Merck Animal Heallth	Sale of securities on an exchange or to another person at price $ 115.00 per share.	28 Apr 2023	66,163	154,492 (0%)	0%	115.0	7,608,844	Common Stock
Robert M. Davis	Director, Chairman, CEO & President	Exercise or conversion of derivative security received from the company (such as an option) at price $ 56.04 per share.	28 Apr 2023	143,329	415,145 (0%)	0%	56.0	8,032,157	Common Stock
Robert M. Davis	Director, Chairman, CEO & President	Sale of securities on an exchange or to another person at price $ 114.93 per share.	28 Apr 2023	143,329	271,816 (0%)	0%	114.9	16,472,845	Common Stock
Robert M. Davis	Director, Chairman, CEO & President	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	28 Apr 2023	143,329	0	-		-	Stock Option (Right to Buy)
Sanat Chattopadhyay	Exe V-P & Pres. MMD	Sale of securities on an exchange or to another person at price $ 115.07 per share.	13 Apr 2023	67,892	0 (0%)	0%	115.1	7,812,366	Common Stock
Sanat Chattopadhyay	Exe V-P & Pres. MMD	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	13 Apr 2023	66,163	0	-		-	Stock Option (Right to Buy)
Sanat Chattopadhyay	Exe V-P & Pres. MMD	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	13 Apr 2023	67,892	0	-		-	Stock Option (Right to Buy)
Sanat Chattopadhyay	Exe V-P & Pres. MMD	Sale of securities on an exchange or to another person at price $ 115.06 per share.	13 Apr 2023	66,163	67,892 (0%)	0%	115.1	7,612,702	Common Stock
Sanat Chattopadhyay	Exe V-P & Pres. MMD	Exercise or conversion of derivative security received from the company (such as an option) at price $ 62.07 per share.	13 Apr 2023	66,163	134,055 (0%)	0%	62.1	4,106,737	Common Stock
Sanat Chattopadhyay	Exe V-P & Pres. MMD	Exercise or conversion of derivative security received from the company (such as an option) at price $ 56.04 per share.	13 Apr 2023	67,892	67,892 (0%)	0%	56.0	3,804,668	Common Stock
Peter C. Wendell	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	31 Mar 2023	281	118,477	-		-	Phantom Stock
Thomas Henry Glocer	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	31 Mar 2023	422	87,408	-		-	Phantom Stock
Mary Ellen Coe	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	31 Mar 2023	304	17,499	-		-	Phantom Stock
Christine E. Seidman	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	31 Mar 2023	76	10,339	-		-	Phantom Stock
Joseph Romanelli	President, Human Health Int?l	Sale of securities on an exchange or to another person at price $ 108.22 per share.	15 Feb 2023	5,000	20,284 (0%)	0%	108.2	541,101	Common Stock
Steven C. Mizell	EVP, Chief HR Officer	Sale of securities on an exchange or to another person at price $ 109.10 per share.	13 Feb 2023	1,815	33,085 (0%)	0%	109.1	198,017	Common Stock
David Michael Williams	EVP,Chief Info&Digital Officer	Payment of exercise price or tax liability using portion of securities received from the company at price $ 106.72 per share.	10 Feb 2023	413	12,091 (0%)	0%	106.7	44,075	Common Stock
David Michael Williams	EVP,Chief Info&Digital Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	10 Feb 2023	1,205	0	-		-	Restricted Stock Unit
David Michael Williams	EVP,Chief Info&Digital Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 106.72 per share.	10 Feb 2023	1,205	12,504 (0%)	0%	106.7	128,598	Common Stock
Steven C. Mizell	EVP, Chief HR Officer	Sale of securities on an exchange or to another person at price $ 107.00 per share.	09 Feb 2023	5,000	34,900 (0%)	0%	107.0	535,007	Common Stock
Steven C. Mizell	EVP, Chief HR Officer	Sale of securities on an exchange or to another person at price $ 104.25 per share.	06 Feb 2023	4,436	39,900 (0%)	0%	104.3	462,473	Common Stock
Jennifer Zachary	EVP, General Counsel	Sale of securities on an exchange or to another person at price $ 103.17 per share.	03 Feb 2023	75,436	53,919 (0%)	0%	103.2	7,782,762	Common Stock
Jennifer Zachary	EVP, General Counsel	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	03 Feb 2023	75,436	0	-		-	Stock Option (Right to Buy)
Jennifer Zachary	EVP, General Counsel	Exercise or conversion of derivative security received from the company (such as an option) at price $ 56.04 per share.	03 Feb 2023	75,436	129,355 (0%)	0%	56.0	4,227,433	Common Stock
Richard R. DeLuca	EVP&Pres, Merck Animal Heallth	Grant, award, or other acquisition of securities at price $ 109.88 per share.	23 Jan 2023	15,628	153,500 (0%)	0%	109.9	1,717,205	Common Stock
Robert M. Davis	Director, CEO & President	Grant, award, or other acquisition of securities at price $ 109.88 per share.	23 Jan 2023	24,224	271,816 (0%)	0%	109.9	2,661,733	Common Stock
Steven C. Mizell	EVP, Chief HR Officer	Grant, award, or other acquisition of securities at price $ 109.88 per share.	23 Jan 2023	12,192	44,336 (0%)	0%	109.9	1,339,657	Common Stock
Rita A. Karachun	Sr. VP Fince-Global Controller	Grant, award, or other acquisition of securities at price $ 109.88 per share.	23 Jan 2023	2,846	43,948 (0%)	0%	109.9	312,718	Common Stock
Sanat Chattopadhyay	Exe V-P & Pres. MMD	Grant, award, or other acquisition of securities at price $ 109.88 per share.	23 Jan 2023	17,495	46,995 (0%)	0%	109.9	1,922,351	Common Stock
Jennifer Zachary	EVP, General Counsel	Grant, award, or other acquisition of securities at price $ 109.88 per share.	23 Jan 2023	15,631	53,919 (0%)	0%	109.9	1,717,534	Common Stock
Caroline Litchfield	EVP & CFO	Grant, award, or other acquisition of securities at price $ 109.88 per share.	23 Jan 2023	2,656	30,186 (0%)	0%	109.9	291,841	Common Stock
David Michael Williams	EVP,Chief Info&Digital Officer	Grant, award, or other acquisition of securities at price $ 109.88 per share.	23 Jan 2023	1,745	11,007 (0%)	0%	109.9	191,741	Common Stock
Dean Y. Li	Executive VP & President, MRL	Grant, award, or other acquisition of securities at price $ 109.88 per share.	23 Jan 2023	3,275	19,933 (0%)	0%	109.9	359,857	Common Stock
Michael A Klobuchar	EVP - Chief Strategy Officer	Grant, award, or other acquisition of securities at price $ 109.88 per share.	23 Jan 2023	2,651	17,989 (0%)	0%	109.9	291,292	Common Stock
Jannie Oosthuizen	President, U.S. Market	Grant, award, or other acquisition of securities at price $ 109.88 per share.	23 Jan 2023	2,091	18,821 (0%)	0%	109.9	229,759	Common Stock
Sanat Chattopadhyay	Exe V-P & Pres. MMD	Sale of securities on an exchange or to another person at price $ 111.73 per share.	09 Jan 2023	4,538	73,358 (0%)	0%	111.7	507,048	Common Stock
Sanat Chattopadhyay	Exe V-P & Pres. MMD	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	09 Jan 2023	83,994	0	-		-	Stock Option (Right to Buy)
Sanat Chattopadhyay	Exe V-P & Pres. MMD	Sale of securities on an exchange or to another person at price $ 110.61 per share.	09 Jan 2023	35,598	77,896 (0%)	0%	110.6	3,937,659	Common Stock
Sanat Chattopadhyay	Exe V-P & Pres. MMD	Sale of securities on an exchange or to another person at price $ 113.78 per share.	09 Jan 2023	38,216	31,202 (0%)	0%	113.8	4,348,033	Common Stock
Sanat Chattopadhyay	Exe V-P & Pres. MMD	Exercise or conversion of derivative security received from the company (such as an option) at price $ 53.06 per share.	09 Jan 2023	83,994	113,494 (0%)	0%	53.1	4,456,722	Common Stock
Sanat Chattopadhyay	Exe V-P & Pres. MMD	Sale of securities on an exchange or to another person at price $ 112.78 per share.	09 Jan 2023	3,940	69,418 (0%)	0%	112.8	444,362	Common Stock
Sanat Chattopadhyay	Exe V-P & Pres. MMD	Sale of securities on an exchange or to another person at price $ 114.46 per share.	09 Jan 2023	1,702	29,500 (0%)	0%	114.5	194,813	Common Stock
Peter C. Wendell	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	30 Dec 2022	270	117,421	-		-	Phantom Stock
Thomas Henry Glocer	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	30 Dec 2022	405	86,420	-		-	Phantom Stock
Mary Ellen Coe	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	30 Dec 2022	292	17,083	-		-	Phantom Stock
Christine E. Seidman	Director	Grant, award, or other acquisition of securities at price $ 0.00 per share.	30 Dec 2022	73	10,192	-		-	Phantom Stock
Robert M. Davis	Director, CEO & President	Sale of securities on an exchange or to another person at price $ 103.59 per share.	09 Nov 2022	100	247,592 (0%)	0%	103.6	10,359	Common Stock
Robert M. Davis	Director, CEO & President	Sale of securities on an exchange or to another person at price $ 102.98 per share.	09 Nov 2022	79,918	247,692 (0%)	0%	103.0	8,229,924	Common Stock
Robert M. Davis	Director, CEO & President	Sale of securities on an exchange or to another person at price $ 101.94 per share.	09 Nov 2022	87,595	327,610 (0%)	0%	101.9	8,929,557	Common Stock
Robert M. Davis	Director, CEO & President	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	09 Nov 2022	167,613	415,205 (0%)	0%		0	Common Stock
Robert M. Davis	Director, CEO & President	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	09 Nov 2022	167,613	0	-		-	Stock Option (Right to Buy)
Jannie Oosthuizen	President, U.S. Market	Sale of securities on an exchange or to another person at price $ 103.21 per share.	09 Nov 2022	1,795	16,730 (0%)	0%	103.2	185,262	Common Stock
Steven C. Mizell	EVP, Chief HR Officer	Sale of securities on an exchange or to another person at price $ 101.00 per share.	08 Nov 2022	20,000	32,144 (0%)	0%	101	2,020,000	Common Stock
Steven C. Mizell	EVP, Chief HR Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	08 Nov 2022	15,000	824	-		-	Stock Option (Right to Buy)
Steven C. Mizell	EVP, Chief HR Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	08 Nov 2022	20,000	15,824	-		-	Stock Option (Right to Buy)
Steven C. Mizell	EVP, Chief HR Officer	Sale of securities on an exchange or to another person at price $ 101.42 per share.	08 Nov 2022	15,000	32,144 (0%)	0%	101.4	1,521,278	Common Stock
Steven C. Mizell	EVP, Chief HR Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	08 Nov 2022	15,000	47,144 (0%)	0%		0	Common Stock
Steven C. Mizell	EVP, Chief HR Officer	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	08 Nov 2022	20,000	52,144 (0%)	0%		0	Common Stock
Kenneth C. Frazier	Director, Executive Chair	Sale of securities on an exchange or to another person at price $ 98.45 per share.	07 Nov 2022	24,914	911,508 (0%)	0%	98.5	2,452,880	Common Stock
Kenneth C. Frazier	Director, Executive Chair	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	07 Nov 2022	235,769	0	-		-	Stock Option (Right to Buy)
Kenneth C. Frazier	Director, Executive Chair	Sale of securities on an exchange or to another person at price $ 100.07 per share.	07 Nov 2022	84,721	700,653 (0%)	0%	100.1	8,477,717	Common Stock
Kenneth C. Frazier	Director, Executive Chair	Sale of securities on an exchange or to another person at price $ 99.42 per share.	07 Nov 2022	126,134	785,374 (0%)	0%	99.4	12,540,835	Common Stock
Kenneth C. Frazier	Director, Executive Chair	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	07 Nov 2022	235,769	936,422 (0%)	0%		0	Common Stock
Jannie Oosthuizen	President, U.S. Market	Sale of securities on an exchange or to another person at price $ 99.47 per share.	07 Nov 2022	45,561	18,525 (0%)	0%	99.5	4,531,980	Common Stock
Jannie Oosthuizen	President, U.S. Market	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	07 Nov 2022	13,540	57,041 (0%)	0%		0	Common Stock
Jannie Oosthuizen	President, U.S. Market	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	07 Nov 2022	17,455	43,501 (0%)	0%		0	Common Stock
Jannie Oosthuizen	President, U.S. Market	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	07 Nov 2022	14,703	0	-		-	Stock Option (Right to Buy)
Jannie Oosthuizen	President, U.S. Market	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	07 Nov 2022	17,455	0	-		-	Stock Option (Right to Buy)
Jannie Oosthuizen	President, U.S. Market	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	07 Nov 2022	14,703	26,046 (0%)	0%		0	Common Stock
Jannie Oosthuizen	President, U.S. Market	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	07 Nov 2022	13,540	6,773	-		-	Stock Option (Right to Buy)
Jannie Oosthuizen	President, U.S. Market	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	07 Nov 2022	7,045	14,094	-		-	Stock Option (Right to Buy)
Jannie Oosthuizen	President, U.S. Market	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	07 Nov 2022	7,045	64,086 (0%)	0%		0	Common Stock
Kenneth C. Frazier	Director, Executive Chair	Sale of securities on an exchange or to another person at price $ 99.08 per share.	03 Nov 2022	34,810	700,653 (0%)	0%	99.1	3,448,989	Common Stock
Kenneth C. Frazier	Director, Executive Chair	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	03 Nov 2022	235,000	235,769	-		-	Stock Option (Right to Buy)
Kenneth C. Frazier	Director, Executive Chair	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	03 Nov 2022	235,000	470,769	-		-	Stock Option (Right to Buy)
Kenneth C. Frazier	Director, Executive Chair	Sale of securities on an exchange or to another person at price $ 98.53 per share.	03 Nov 2022	200,190	735,463 (0%)	0%	98.5	19,725,241	Common Stock
Kenneth C. Frazier	Director, Executive Chair	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	03 Nov 2022	235,000	935,653 (0%)	0%		0	Common Stock
Kenneth C. Frazier	Director, Executive Chair	Sale of securities on an exchange or to another person at price $ 99.09 per share.	03 Nov 2022	20,383	700,653 (0%)	0%	99.1	2,019,804	Common Stock
Kenneth C. Frazier	Director, Executive Chair	Sale of securities on an exchange or to another person at price $ 98.68 per share.	03 Nov 2022	214,617	721,036 (0%)	0%	98.7	21,178,084	Common Stock
Kenneth C. Frazier	Director, Executive Chair	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	03 Nov 2022	235,000	935,653 (0%)	0%		0	Common Stock
Kenneth C. Frazier	Director, Executive Chair	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	01 Nov 2022	300,000	1,006,283 (0%)	0%		0	Common Stock
Kenneth C. Frazier	Director, Executive Chair	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	01 Nov 2022	134,172	705,769	-		-	Stock Option (Right to Buy)
Kenneth C. Frazier	Director, Executive Chair	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	01 Nov 2022	165,828	0	-		-	Stock Option (Right to Buy)
Kenneth C. Frazier	Director, Executive Chair	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	01 Nov 2022	300,000	165,828	-		-	Stock Option (Right to Buy)
Kenneth C. Frazier	Director, Executive Chair	Sale of securities on an exchange or to another person at price $ 100.40 per share.	01 Nov 2022	94,339	700,653 (0%)	0%	100.4	9,471,739	Common Stock
Kenneth C. Frazier	Director, Executive Chair	Sale of securities on an exchange or to another person at price $ 99.68 per share.	01 Nov 2022	205,661	794,992 (0%)	0%	99.7	20,500,103	Common Stock
Kenneth C. Frazier	Director, Executive Chair	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	01 Nov 2022	134,172	1,000,653 (0%)	0%		0	Common Stock
Kenneth C. Frazier	Director, Executive Chair	Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share.	01 Nov 2022	165,828	866,481 (0%)	0%		0	Common Stock
Kenneth C. Frazier	Director, Executive Chair	Gift of securities by or to the insider at price $ 0.00 per share.	01 Nov 2022	1,470	700,653 (0%)	0%		0	Common Stock
Kenneth C. Frazier	Director, Executive Chair	Gift of securities by or to the insider at price $ 0.00 per share.	01 Nov 2022	2,450	702,123 (0%)	0%		0	Common Stock
Kenneth C. Frazier	Director, Executive Chair	Gift of securities by or to the insider at price $ 0.00 per share.	01 Nov 2022	1,710	704,573 (0%)	0%		0	Common Stock
Kenneth C. Frazier	Director, Executive Chair	Sale of securities on an exchange or to another person at price $ 101.05 per share.	01 Nov 2022	700	706,283 (0%)	0%	101.0	70,733	Common Stock
Kenneth C. Frazier	Director, Executive Chair	Sale of securities on an exchange or to another person at price $ 100.22 per share.	01 Nov 2022	96,981	706,983 (0%)	0%	100.2	9,719,843	Common Stock

*All Values are in $ Million

Client Category: Promoter/ KMP/ Director / Immediate Relatives / Employee / etc
Security Type: Share/ Warrants / Convertible Debentures

Data as reported to USA Exchanges

View All The Insider Trades disclosures

54.34% Gain from 52W Low

Insider Trading disclosures for Merck & Company

The latest disclosure was made by Richard R. DeLuca in Merck & Company where a trade of 2,518 Restricted Stock Unit done was reported to US exchanges on April 29, 2026.

Screeners based on Insider Trading and SAST parameters