Andrew Bialecki's most recent trade in Klaviyo Inc - Ordinary Shares - Series A was a trade of 212,529 Series A Common Stock done . Disclosure was reported to the exchange on May 26, 2026.
| Stock | Client Name | Client Category | Action | Reported to Exchange | Quantity | Post Transaction Holding | Traded % | Avg. Price | Value | Security Type |
|---|---|---|---|---|---|---|---|---|---|---|
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | 26 May 2026 | 212,529 | 212,529 | - | - | Series A Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | 26 May 2026 | 212,529 | 66,731,589 | - | - | Series B Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 14.61 per share. | 26 May 2026 | 212,529 | 0 | - | 14.6 | 3,105,049 | Series A Common Stock |
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | 19 May 2026 | 200,000 | 66,944,118 | - | - | Series B Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 14.88 per share. | 19 May 2026 | 200,000 | 0 | - | 14.9 | 2,976,000 | Series A Common Stock |
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | 19 May 2026 | 200,000 | 200,000 | - | - | Series A Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | 12 May 2026 | 200,000 | 200,000 | - | - | Series A Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | 12 May 2026 | 200,000 | 67,144,118 | - | - | Series B Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 14.46 per share. | 12 May 2026 | 141,316 | 0 | - | 14.5 | 2,043,429 | Series A Common Stock |
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 14.97 per share. | 12 May 2026 | 58,684 | 141,316 | - | 15.0 | 878,499 | Series A Common Stock |
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | 14 Apr 2026 | 200,000 | 200,000 | - | - | Series A Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | 14 Apr 2026 | 200,000 | 67,344,118 | - | - | Series B Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 17.39 per share. | 14 Apr 2026 | 109,142 | 90,858 | - | 17.4 | 1,897,979 | Series A Common Stock |
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 16.94 per share. | 14 Apr 2026 | 90,858 | 0 | - | 16.9 | 1,539,135 | Series A Common Stock |
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | 07 Apr 2026 | 200,000 | 200,000 | - | - | Series A Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | 07 Apr 2026 | 200,000 | 67,544,118 | - | - | Series B Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 18.63 per share. | 07 Apr 2026 | 200,000 | 0 | - | 18.6 | 3,726,000 | Series A Common Stock |
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | 31 Mar 2026 | 200,000 | 200,000 | - | - | Series A Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | 31 Mar 2026 | 200,000 | 67,744,118 | - | - | Series B Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 19.42 per share. | 31 Mar 2026 | 200,000 | 0 | - | 19.4 | 3,884,000 | Series A Common Stock |
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | 24 Mar 2026 | 200,000 | 67,944,118 | - | - | Series B Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 18.17 per share. | 24 Mar 2026 | 200,000 | 0 | - | 18.2 | 3,634,000 | Series A Common Stock |
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | 24 Mar 2026 | 200,000 | 200,000 | - | - | Series A Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | 17 Mar 2026 | 200,000 | 200,000 | - | - | Series A Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | 17 Mar 2026 | 200,000 | 68,144,118 | - | - | Series B Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 19.15 per share. | 17 Mar 2026 | 102,621 | 0 | - | 19.1 | 1,965,192 | Series A Common Stock |
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 19.60 per share. | 17 Mar 2026 | 97,379 | 102,621 | - | 19.6 | 1,908,628 | Series A Common Stock |
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | 10 Mar 2026 | 206,827 | 206,827 | - | - | Series A Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | 10 Mar 2026 | 206,827 | 68,344,118 | - | - | Series B Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 19.96 per share. | 10 Mar 2026 | 206,127 | 700 | - | 20.0 | 4,114,295 | Series A Common Stock |
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 19.34 per share. | 10 Mar 2026 | 700 | 0 | - | 19.3 | 13,538 | Series A Common Stock |
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | 03 Mar 2026 | 200,000 | 68,550,945 | - | - | Series B Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | 03 Mar 2026 | 200,000 | 200,000 | - | - | Series A Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 18.86 per share. | 03 Mar 2026 | 154,022 | 45,978 | - | 18.9 | 2,904,855 | Series A Common Stock |
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 17.90 per share. | 03 Mar 2026 | 45,978 | 0 | - | 17.9 | 823,006 | Series A Common Stock |
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | 24 Feb 2026 | 200,000 | 68,750,945 | - | - | Series B Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | 24 Feb 2026 | 200,000 | 200,000 | - | - | Series A Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 16.86 per share. | 24 Feb 2026 | 160,356 | 39,644 | - | 16.9 | 2,703,602 | Series A Common Stock |
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 16.38 per share. | 24 Feb 2026 | 39,644 | 0 | - | 16.4 | 649,369 | Series A Common Stock |
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | 27 Jan 2026 | 155,219 | 155,219 | - | - | Series A Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | 27 Jan 2026 | 155,219 | 68,950,945 | - | - | Series B Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 25.34 per share. | 27 Jan 2026 | 150,689 | 4,530 | - | 25.3 | 3,818,459 | Series A Common Stock |
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 24.94 per share. | 27 Jan 2026 | 4,530 | 0 | - | 24.9 | 112,978 | Series A Common Stock |
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | 20 Jan 2026 | 167,926 | 167,926 | - | - | Series A Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | 20 Jan 2026 | 167,926 | 69,106,164 | - | - | Series B Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 24.16 per share. | 20 Jan 2026 | 167,130 | 796 | - | 24.2 | 4,037,861 | Series A Common Stock |
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 23.29 per share. | 20 Jan 2026 | 796 | 0 | - | 23.3 | 18,539 | Series A Common Stock |
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | 13 Jan 2026 | 140,646 | 140,646 | - | - | Series A Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | 13 Jan 2026 | 140,646 | 69,274,090 | - | - | Series B Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 27.29 per share. | 13 Jan 2026 | 90,327 | 0 | - | 27.3 | 2,465,024 | Series A Common Stock |
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 27.62 per share. | 13 Jan 2026 | 50,319 | 90,327 | - | 27.6 | 1,389,811 | Series A Common Stock |
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | 06 Jan 2026 | 137,504 | 137,504 | - | - | Series A Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | 06 Jan 2026 | 137,504 | 69,431,385 | - | - | Series B Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 28.92 per share. | 06 Jan 2026 | 135,122 | 2,382 | - | 28.9 | 3,907,728 | Series A Common Stock |
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | 06 Jan 2026 | 16,649 | 16,649 | - | - | Series A Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 30.01 per share. | 06 Jan 2026 | 16,649 | 0 | - | 30.0 | 499,636 | Series A Common Stock |
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | 06 Jan 2026 | 16,649 | 69,414,736 | - | - | Series B Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Co-Chief Executive Officer, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 28.52 per share. | 06 Jan 2026 | 2,382 | 0 | - | 28.5 | 67,935 | Series A Common Stock |
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Chief Executive Officer, Ten Percent Owner | 22 Dec 2025 | 100,000 | 100,000 | - | - | Series A Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Chief Executive Officer, Ten Percent Owner | 22 Dec 2025 | 100,000 | 69,568,889 | - | - | Series B Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Chief Executive Officer, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 33.05 per share. | 22 Dec 2025 | 93,066 | 6,934 | - | 33.0 | 3,075,831 | Series A Common Stock |
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Chief Executive Officer, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 31.94 per share. | 22 Dec 2025 | 6,934 | 0 | - | 31.9 | 221,472 | Series A Common Stock |
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Chief Executive Officer, Ten Percent Owner | 16 Dec 2025 | 138,648 | 69,768,889 | - | - | Series B Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Chief Executive Officer, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 29.04 per share. | 16 Dec 2025 | 138,648 | 0 | - | 29.0 | 4,026,338 | Series A Common Stock |
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Chief Executive Officer, Ten Percent Owner | 16 Dec 2025 | 138,648 | 138,648 | - | - | Series A Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Chief Executive Officer, Ten Percent Owner | 16 Dec 2025 | 100,000 | 69,668,889 | - | - | Series B Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Chief Executive Officer, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 30.40 per share. | 16 Dec 2025 | 100,000 | 0 | - | 30.4 | 3,040,000 | Series A Common Stock |
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Chief Executive Officer, Ten Percent Owner | 16 Dec 2025 | 100,000 | 100,000 | - | - | Series A Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Chief Executive Officer, Ten Percent Owner | 09 Dec 2025 | 3,419,000 | 69,907,537 | - | - | Series B Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Chief Executive Officer, Ten Percent Owner | Gift of securities by or to the insider at price $ 0.00 per share. | 09 Dec 2025 | 3,419,000 | 0 | - | 0 | Series A Common Stock | |
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Chief Executive Officer, Ten Percent Owner | 09 Dec 2025 | 3,419,000 | 3,419,000 | - | - | Series A Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Chief Executive Officer, Ten Percent Owner | 09 Dec 2025 | 131,362 | 131,362 | - | - | Series A Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Chief Executive Officer, Ten Percent Owner | 09 Dec 2025 | 131,362 | 73,426,537 | - | - | Series B Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Chief Executive Officer, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 29.42 per share. | 09 Dec 2025 | 130,562 | 800 | - | 29.4 | 3,841,134 | Series A Common Stock |
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Chief Executive Officer, Ten Percent Owner | 09 Dec 2025 | 82,223 | 73,344,314 | - | - | Series B Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Chief Executive Officer, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 30.12 per share. | 09 Dec 2025 | 82,223 | 0 | - | 30.1 | 2,476,557 | Series A Common Stock |
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Chief Executive Officer, Ten Percent Owner | 09 Dec 2025 | 82,223 | 82,223 | - | - | Series A Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Chief Executive Officer, Ten Percent Owner | 09 Dec 2025 | 17,777 | 73,326,537 | - | - | Series B Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Chief Executive Officer, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 30.00 per share. | 09 Dec 2025 | 17,777 | 0 | - | 30 | 533,310 | Series A Common Stock |
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Chief Executive Officer, Ten Percent Owner | 09 Dec 2025 | 17,777 | 17,777 | - | - | Series A Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Chief Executive Officer, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 28.84 per share. | 09 Dec 2025 | 800 | 0 | - | 28.8 | 23,072 | Series A Common Stock |
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Chief Executive Officer, Ten Percent Owner | 02 Dec 2025 | 142,045 | 73,558,851 | - | - | Series B Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Chief Executive Officer, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 28.62 per share. | 02 Dec 2025 | 142,045 | 0 | - | 28.6 | 4,065,328 | Series A Common Stock |
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Chief Executive Officer, Ten Percent Owner | 02 Dec 2025 | 142,045 | 142,045 | - | - | Series A Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Chief Executive Officer, Ten Percent Owner | 02 Dec 2025 | 952 | 73,557,899 | - | - | Series B Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Chief Executive Officer, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 30.00 per share. | 02 Dec 2025 | 952 | 0 | - | 30 | 28,560 | Series A Common Stock |
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Chief Executive Officer, Ten Percent Owner | 02 Dec 2025 | 952 | 952 | - | - | Series A Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Chief Executive Officer, Ten Percent Owner | 24 Nov 2025 | 144,717 | 73,700,896 | - | - | Series B Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Chief Executive Officer, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 27.76 per share. | 24 Nov 2025 | 144,717 | 0 | - | 27.8 | 4,017,344 | Series A Common Stock |
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Chief Executive Officer, Ten Percent Owner | 24 Nov 2025 | 144,717 | 144,717 | - | - | Series A Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Chief Executive Officer, Ten Percent Owner | 18 Nov 2025 | 147,329 | 147,329 | - | - | Series A Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Chief Executive Officer, Ten Percent Owner | 18 Nov 2025 | 147,329 | 73,845,613 | - | - | Series B Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Chief Executive Officer, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 27.16 per share. | 18 Nov 2025 | 147,329 | 0 | - | 27.2 | 4,001,456 | Series A Common Stock |
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Chief Executive Officer, Ten Percent Owner | 11 Nov 2025 | 140,464 | 140,464 | - | - | Series A Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Chief Executive Officer, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 29.74 per share. | 11 Nov 2025 | 140,464 | 0 | - | 29.7 | 4,177,399 | Series A Common Stock |
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Chief Executive Officer, Ten Percent Owner | 11 Nov 2025 | 140,464 | 73,992,942 | - | - | Series B Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Chief Executive Officer, Ten Percent Owner | 14 Oct 2025 | 163,331 | 163,331 | - | - | Series A Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Chief Executive Officer, Ten Percent Owner | 14 Oct 2025 | 163,331 | 74,133,406 | - | - | Series B Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Chief Executive Officer, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 24.37 per share. | 14 Oct 2025 | 163,331 | 0 | - | 24.4 | 3,980,376 | Series A Common Stock |
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Chief Executive Officer, Ten Percent Owner | 07 Oct 2025 | 159,508 | 74,296,737 | - | - | Series B Common Stock | ||
| Klaviyo Inc - Ordinary Shares - Series A | Andrew Bialecki | Director, Chief Executive Officer, Ten Percent Owner | 07 Oct 2025 | 159,508 | 159,508 | - | - | Series A Common Stock |