Robert G. Harrison's most recent trade in Sera Prognostics Inc - Ordinary Shares Class A was a trade of 2,000 Class A Common Stock done at an average price of $3 . Disclosure was reported to the exchange on Dec. 30, 2025.
| Stock | Client Name | Client Category | Action | Reported to Exchange | Quantity | Post Transaction Holding | Traded % | Avg. Price | Value | Security Type |
|---|---|---|---|---|---|---|---|---|---|---|
| Sera Prognostics Inc (Class A) | Robert G. Harrison | Chief Information Officer | Sale of securities on an exchange or to another person at price $ 3.00 per share. | 30 Dec 2025 | 2,000 | 84,788 | - | 3 | 6,000 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | Robert G. Harrison | Chief Information Officer | Sale of securities on an exchange or to another person at price $ 3.31 per share. | 10 Dec 2025 | 616 | 86,788 | - | 3.3 | 2,039 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | Robert G. Harrison | Chief Information Officer | Sale of securities on an exchange or to another person at price $ 2.93 per share. | 02 Dec 2025 | 2,000 | 87,404 | - | 2.9 | 5,860 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | Robert G. Harrison | Chief Information Officer | Sale of securities on an exchange or to another person at price $ 2.62 per share. | 10 Nov 2025 | 6,528 | 89,404 | - | 2.6 | 17,103 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | Robert G. Harrison | Chief Information Officer | Sale of securities on an exchange or to another person at price $ 3.07 per share. | 04 Nov 2025 | 2,000 | 95,932 | - | 3.1 | 6,140 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | Robert G. Harrison | Chief Information Officer | Sale of securities on an exchange or to another person at price $ 3.18 per share. | 07 Oct 2025 | 2,000 | 97,932 | - | 3.2 | 6,360 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | Robert G. Harrison | Chief Information Officer | Sale of securities on an exchange or to another person at price $ 3.13 per share. | 11 Sep 2025 | 645 | 99,932 | - | 3.1 | 2,019 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | Robert G. Harrison | Chief Information Officer | Sale of securities on an exchange or to another person at price $ 3.05 per share. | 09 Sep 2025 | 2,000 | 100,577 | - | 3.1 | 6,100 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | Robert G. Harrison | Chief Information Officer | Sale of securities on an exchange or to another person at price $ 2.22 per share. | 20 Aug 2025 | 6,000 | 102,577 | - | 2.2 | 13,320 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | Robert G. Harrison | Chief Information Officer | Sale of securities on an exchange or to another person at price $ 2.54 per share. | 08 Aug 2025 | 5,962 | 108,577 | - | 2.5 | 15,143 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | Robert G. Harrison | Chief Information Officer | Sale of securities on an exchange or to another person at price $ 1.48 per share. | 10 Jun 2025 | 667 | 114,539 | - | 1.5 | 987 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | Robert G. Harrison | Chief Information Officer | Sale of securities on an exchange or to another person at price $ 2.44 per share. | 08 May 2025 | 6,551 | 115,206 | - | 2.4 | 15,984 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | Robert G. Harrison | Chief Information Officer | Sale of securities on an exchange or to another person at price $ 4.16 per share. | 07 Mar 2025 | 3,874 | 121,757 | - | 4.2 | 16,116 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | Robert G. Harrison | Chief Information Officer | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 05 Mar 2025 | 36,830 | 36,830 | - | - | Stock Option (right to buy) | |
| Sera Prognostics Inc (Class A) | Robert G. Harrison | Chief Information Officer | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 05 Mar 2025 | 25,770 | 128,882 | - | 0 | Class A Common Stock | |
| Sera Prognostics Inc (Class A) | Robert G. Harrison | Chief Information Officer | Sale of securities on an exchange or to another person at price $ 4.16 per share. | 05 Mar 2025 | 3,251 | 125,631 | - | 4.2 | 13,524 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | Robert G. Harrison | Chief Information Officer | Sale of securities on an exchange or to another person at price $ 4.28 per share. | 13 Feb 2025 | 3,610 | 103,112 | - | 4.3 | 15,451 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | Robert G. Harrison | Chief Information Officer | Sale of securities on an exchange or to another person at price $ 4.58 per share. | 12 Feb 2025 | 7,297 | 106,722 | - | 4.6 | 33,420 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | Robert G. Harrison | Chief Information Officer | Sale of securities on an exchange or to another person at price $ 3.97 per share. | 11 Feb 2025 | 554 | 114,019 | - | 4.0 | 2,199 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | Robert G. Harrison | Chief Information Officer | Sale of securities on an exchange or to another person at price $ 7.30 per share. | 10 Jan 2025 | 12,372 | 118,674 | - | 7.3 | 90,316 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | Robert G. Harrison | Chief Information Officer | Sale of securities on an exchange or to another person at price $ 6.47 per share. | 10 Jan 2025 | 2,264 | 114,573 | - | 6.5 | 14,648 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | Robert G. Harrison | Chief Information Officer | Sale of securities on an exchange or to another person at price $ 8.01 per share. | 10 Jan 2025 | 1,837 | 116,837 | - | 8.0 | 14,714 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | Robert G. Harrison | Chief Information Officer | Sale of securities on an exchange or to another person at price $ 7.32 per share. | 11 Nov 2024 | 4,727 | 131,046 | - | 7.3 | 34,602 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | Robert G. Harrison | Chief Information Officer | Sale of securities on an exchange or to another person at price $ 7.42 per share. | 07 Aug 2024 | 5,022 | 135,773 | - | 7.4 | 37,263 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | Robert G. Harrison | Chief Information Officer | Sale of securities on an exchange or to another person at price $ 9.59 per share. | 08 May 2024 | 4,902 | 140,795 | - | 9.6 | 47,010 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | Robert G. Harrison | Chief Information Officer | Sale of securities on an exchange or to another person at price $ 9.02 per share. | 06 Mar 2024 | 2,138 | 145,697 | - | 9.0 | 19,285 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | Robert G. Harrison | Chief Information Officer | Sale of securities on an exchange or to another person at price $ 8.03 per share. | 06 Feb 2024 | 5,665 | 147,835 | - | 8.0 | 45,490 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | Robert G. Harrison | Chief Information Officer | Sale of securities on an exchange or to another person at price $ 3.23 per share. | 05 Jun 2023 | 5,000 | 28,500 | - | 3.2 | 16,150 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | Robert G. Harrison | Chief Information Officer | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 06 Mar 2023 | 45,000 | 45,000 | - | - | Stock Option (right to buy) | |
| Sera Prognostics Inc (Class A) | Robert G. Harrison | Chief Information Officer | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 06 Mar 2023 | 28,500 | 28,500 | - | 0 | Class A Common Stock | |
| Sera Prognostics Inc (Class A) | Robert G. Harrison | Chief Information Officer | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 23 Mar 2022 | 33,698 | 33,698 | - | - | Stock Option (right to buy) | |
| Griffon Corp | Robert G. Harrison | Director | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 03 Mar 2022 | 4,246 | 50,296 (0%) | 0% | 0 | Common Stock | |
| Griffon Corp | Robert G. Harrison | Director | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 28 Jan 2021 | 3,702 | 46,050 (0%) | 0% | 0 | Common Stock |