Real time insider trading transaction history:
- Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
Common stock purchase or sale:
| Transaction Date | Reported DateTime | Company | Symbol | Insider Relationship | Shares Traded | Average Price | Total Amount | Shares Owned | Filing |
| 2026-03-31 Sale | 2026-04-02 8:04 pm | Klaviyo Inc. | KVYO | Bialecki Andrew Co-Chief Executive Officer 10% Owner | 200,000 | $19.42 | $3,884,000 | 76,338,758 (Indirect Direct) | View |
| 2026-03-24 Sale | 2026-03-26 8:01 pm | Klaviyo Inc. | KVYO | Bialecki Andrew Co-Chief Executive Officer 10% Owner | 200,000 | $18.17 | $3,634,000 | 76,538,758 (Indirect Direct) | View |
| 2026-03-17 Sale | 2026-03-19 7:59 pm | Klaviyo Inc. | KVYO | Bialecki Andrew Co-Chief Executive Officer 10% Owner | 200,000 | $19.37 | $3,873,821 | 76,738,758 (Indirect Direct) | View |
| 2026-03-10 Sale | 2026-03-12 9:47 pm | Klaviyo Inc. | KVYO | Bialecki Andrew Co-Chief Executive Officer 10% Owner | 206,827 | $19.96 | $4,127,833 | 76,938,758 (Indirect Direct) | View |
| 2026-03-03 Sale | 2026-03-05 9:32 pm | Klaviyo Inc. | KVYO | Bialecki Andrew Co-Chief Executive Officer 10% Owner | 200,000 | $18.64 | $3,727,861 | 77,145,585 (Indirect Direct) | View |
| 2026-02-24 Sale | 2026-02-26 9:30 pm | Klaviyo Inc. | KVYO | Bialecki Andrew Co-Chief Executive Officer 10% Owner | 200,000 | $16.76 | $3,352,971 | 77,345,585 (Indirect Direct) | View |
| 2026-01-27 Sale | 2026-01-29 4:29 pm | Klaviyo Inc. | KVYO | Bialecki Andrew Co-Chief Executive Officer 10% Owner | 155,219 | $25.33 | $3,931,437 | 77,545,585 (Indirect Direct) | View |
| 2026-01-20 Sale | 2026-01-22 4:29 pm | Klaviyo Inc. | KVYO | Bialecki Andrew Co-Chief Executive Officer 10% Owner | 167,926 | $24.16 | $4,056,400 | 77,700,804 (Indirect Direct) | View |
| 2026-01-13 Sale | 2026-01-15 6:02 pm | Klaviyo Inc. | KVYO | Bialecki Andrew Co-Chief Executive Officer 10% Owner | 140,646 | $27.41 | $3,854,835 | 77,868,730 (Indirect Direct) | View |
| 2026-01-06 Sale | 2026-01-08 4:31 pm | Klaviyo Inc. | KVYO | Bialecki Andrew Co-Chief Executive Officer 10% Owner | 154,153 | $29.03 | $4,475,299 | 147,440,761 (Indirect Direct) | View |
| 2025-12-22 Sale | 2025-12-23 4:06 pm | Klaviyo Inc. | KVYO | Bialecki Andrew Chief Executive Officer 10% Owner | 100,000 | $32.97 | $3,297,303 | 78,163,529 (Indirect Direct) | View |
| 2025-12-16 Sale | 2025-12-17 5:24 pm | Klaviyo Inc. | KVYO | Bialecki Andrew Chief Executive Officer 10% Owner | 238,648 | $29.61 | $7,066,338 | 148,032,418 (Indirect Direct) | View |
| 2025-12-09 Sale | 2025-12-11 4:22 pm | Klaviyo Inc. | KVYO | Bialecki Andrew Chief Executive Officer 10% Owner | 231,362 | $29.71 | $6,874,073 | 298,599,565 (Indirect Direct) | View |
| 2025-12-02 Sale | 2025-12-04 6:50 pm | Klaviyo Inc. | KVYO | Bialecki Andrew Chief Executive Officer 10% Owner | 142,997 | $28.63 | $4,093,888 | 155,711,390 (Indirect Direct) | View |
| 2025-11-24 Sale | 2025-11-26 4:12 pm | Klaviyo Inc. | KVYO | Bialecki Andrew Chief Executive Officer 10% Owner | 144,717 | $27.76 | $4,017,344 | 82,295,536 (Indirect Direct) | View |
| 2025-11-18 Sale | 2025-11-20 4:10 pm | Klaviyo Inc. | KVYO | Bialecki Andrew Chief Executive Officer 10% Owner | 147,329 | $27.16 | $4,001,456 | 82,440,253 (Indirect Direct) | View |
| 2025-11-11 Sale | 2025-11-13 4:24 pm | Klaviyo Inc. | KVYO | Bialecki Andrew Chief Executive Officer 10% Owner | 140,464 | $29.74 | $4,177,399 | 82,587,582 (Indirect Direct) | View |
| 2025-10-14 Sale | 2025-10-16 4:09 pm | Klaviyo Inc. | KVYO | Bialecki Andrew Chief Executive Officer 10% Owner | 163,331 | $24.37 | $3,980,376 | 82,728,046 (Indirect Direct) | View |
| 2025-10-07 Sale | 2025-10-09 4:01 pm | Klaviyo Inc. | KVYO | Bialecki Andrew Chief Executive Officer 10% Owner | 159,508 | $25.3 | $4,035,088 | 82,891,377 (Indirect Direct) | View |
| 2025-09-30 Sale | 2025-10-02 4:06 pm | Klaviyo Inc. | KVYO | Bialecki Andrew Chief Executive Officer 10% Owner | 137,224 | $28.86 | $3,960,362 | 83,050,885 (Indirect Direct) | View |
| 2025-09-23 Sale | 2025-09-25 4:11 pm | Klaviyo Inc. | KVYO | Bialecki Andrew Chief Executive Officer 10% Owner | 211,358 | $35.45 | $7,492,236 | 83,188,109 (Indirect Direct) | View |
| 2025-09-16 Sale | 2025-09-17 4:38 pm | Klaviyo Inc. | KVYO | Bialecki Andrew Chief Executive Officer 10% Owner | 226,382 | $32.35 | $7,323,767 | 83,399,467 (Indirect Direct) | View |
| 2025-09-09 Sale | 2025-09-11 4:06 pm | Klaviyo Inc. | KVYO | Bialecki Andrew Chief Executive Officer 10% Owner | 220,481 | $31.96 | $7,046,573 | 83,625,849 (Indirect Direct) | View |
| 2025-09-02 Sale | 2025-09-04 4:15 pm | Klaviyo Inc. | KVYO | Bialecki Andrew Chief Executive Officer 10% Owner | 223,304 | $31 | $6,922,959 | 83,846,330 (Indirect Direct) | View |
| 2025-08-26 Sale | 2025-08-28 4:08 pm | Klaviyo Inc. | KVYO | Bialecki Andrew Chief Executive Officer 10% Owner | 226,702 | $31.5 | $7,140,299 | 158,616,208 (Indirect Direct) | View |
| 2025-05-16 Sale | 2025-05-16 8:59 pm | Klaviyo Inc. | KVYO | Bialecki Andrew Chief Executive Officer 10% Owner | 10,969,078 | $32.9 | $360,827,821 | 173,738,690 (Indirect Direct) | View |
Stock options: Exercise, Award, Grant, Conversion
| Transaction Date | Reported DateTime | Exercisable Expiration | Company | Symnbol | Insider Relationship | Shares Traded | Conversion Price | Shares Owned | Filing |
| 2026-03-31 Conversion | 2026-04-02 8:04 pm | N/A N/A | Klaviyo Inc. | KVYO | Bialecki Andrew Co-Chief Executive Officer 10% Owner | 200,000 | $0 | 76,338,758 (Direct) | View |
| 2026-03-24 Conversion | 2026-03-26 8:01 pm | N/A N/A | Klaviyo Inc. | KVYO | Bialecki Andrew Co-Chief Executive Officer 10% Owner | 200,000 | $0 | 76,538,758 (Direct) | View |
| 2026-03-17 Conversion | 2026-03-19 7:59 pm | N/A N/A | Klaviyo Inc. | KVYO | Bialecki Andrew Co-Chief Executive Officer 10% Owner | 200,000 | $0 | 76,738,758 (Direct) | View |
| 2026-03-10 Conversion | 2026-03-12 9:47 pm | N/A N/A | Klaviyo Inc. | KVYO | Bialecki Andrew Co-Chief Executive Officer 10% Owner | 206,827 | $0 | 76,938,758 (Direct) | View |
| 2026-03-03 Conversion | 2026-03-05 9:32 pm | N/A N/A | Klaviyo Inc. | KVYO | Bialecki Andrew Co-Chief Executive Officer 10% Owner | 200,000 | $0 | 77,145,585 (Direct) | View |
| 2026-02-24 Conversion | 2026-02-26 9:30 pm | N/A N/A | Klaviyo Inc. | KVYO | Bialecki Andrew Co-Chief Executive Officer 10% Owner | 200,000 | $0 | 77,345,585 (Direct) | View |
| 2026-01-27 Conversion | 2026-01-29 4:29 pm | N/A N/A | Klaviyo Inc. | KVYO | Bialecki Andrew Co-Chief Executive Officer 10% Owner | 155,219 | $0 | 77,545,585 (Direct) | View |
| 2026-01-20 Conversion | 2026-01-22 4:29 pm | N/A N/A | Klaviyo Inc. | KVYO | Bialecki Andrew Co-Chief Executive Officer 10% Owner | 167,926 | $0 | 77,700,804 (Direct) | View |
| 2026-01-13 Conversion | 2026-01-15 6:02 pm | N/A N/A | Klaviyo Inc. | KVYO | Bialecki Andrew Co-Chief Executive Officer 10% Owner | 140,646 | $0 | 77,868,730 (Direct) | View |
| 2026-01-06 Conversion | 2026-01-08 4:31 pm | N/A N/A | Klaviyo Inc. | KVYO | Bialecki Andrew Co-Chief Executive Officer 10% Owner | 154,153 | $0 | 147,440,761 (Direct) | View |
| 2025-12-22 Conversion | 2025-12-23 4:06 pm | N/A N/A | Klaviyo Inc. | KVYO | Bialecki Andrew Chief Executive Officer 10% Owner | 100,000 | $0 | 78,163,529 (Direct) | View |
| 2025-12-16 Conversion | 2025-12-17 5:24 pm | N/A N/A | Klaviyo Inc. | KVYO | Bialecki Andrew Chief Executive Officer 10% Owner | 238,648 | $0 | 148,032,418 (Direct) | View |
| 2025-12-09 Conversion | 2025-12-11 4:22 pm | N/A N/A | Klaviyo Inc. | KVYO | Bialecki Andrew Chief Executive Officer 10% Owner | 3,650,362 | $0 | 298,599,565 (Direct) | View |
| 2025-12-11 Gift | 2025-12-11 4:22 pm | N/A N/A | Klaviyo Inc. | KVYO | Bialecki Andrew Chief Executive Officer 10% Owner | 3,419,000 | $0 | 298,599,565 (Direct) | View |
| 2025-12-02 Conversion | 2025-12-04 6:50 pm | N/A N/A | Klaviyo Inc. | KVYO | Bialecki Andrew Chief Executive Officer 10% Owner | 142,997 | $0 | 155,711,390 (Direct) | View |
| 2025-11-24 Conversion | 2025-11-26 4:12 pm | N/A N/A | Klaviyo Inc. | KVYO | Bialecki Andrew Chief Executive Officer 10% Owner | 144,717 | $0 | 82,295,536 (Direct) | View |
| 2025-11-18 Conversion | 2025-11-20 4:10 pm | N/A N/A | Klaviyo Inc. | KVYO | Bialecki Andrew Chief Executive Officer 10% Owner | 147,329 | $0 | 82,440,253 (Direct) | View |
| 2025-11-11 Conversion | 2025-11-13 4:24 pm | N/A N/A | Klaviyo Inc. | KVYO | Bialecki Andrew Chief Executive Officer 10% Owner | 140,464 | $0 | 82,587,582 (Direct) | View |
| 2025-10-14 Conversion | 2025-10-16 4:09 pm | N/A N/A | Klaviyo Inc. | KVYO | Bialecki Andrew Chief Executive Officer 10% Owner | 163,331 | $0 | 82,728,046 (Direct) | View |
| 2025-10-07 Conversion | 2025-10-09 4:01 pm | N/A N/A | Klaviyo Inc. | KVYO | Bialecki Andrew Chief Executive Officer 10% Owner | 159,508 | $0 | 82,891,377 (Direct) | View |
| 2025-09-30 Conversion | 2025-10-02 4:06 pm | N/A N/A | Klaviyo Inc. | KVYO | Bialecki Andrew Chief Executive Officer 10% Owner | 137,224 | $0 | 83,050,885 (Direct) | View |
| 2025-09-23 Conversion | 2025-09-25 4:11 pm | N/A N/A | Klaviyo Inc. | KVYO | Bialecki Andrew Chief Executive Officer 10% Owner | 211,358 | $0 | 83,188,109 (Direct) | View |
| 2025-09-16 Conversion | 2025-09-17 4:38 pm | N/A N/A | Klaviyo Inc. | KVYO | Bialecki Andrew Chief Executive Officer 10% Owner | 226,382 | $0 | 83,399,467 (Direct) | View |
| 2025-09-09 Conversion | 2025-09-11 4:06 pm | N/A N/A | Klaviyo Inc. | KVYO | Bialecki Andrew Chief Executive Officer 10% Owner | 220,481 | $0 | 83,625,849 (Direct) | View |
| 2025-09-02 Conversion | 2025-09-04 4:15 pm | N/A N/A | Klaviyo Inc. | KVYO | Bialecki Andrew Chief Executive Officer 10% Owner | 223,304 | $0 | 83,846,330 (Direct) | View |
| 2025-08-26 Conversion | 2025-08-28 4:08 pm | N/A N/A | Klaviyo Inc. | KVYO | Bialecki Andrew Chief Executive Officer 10% Owner | 3,726,702 | $0 | 158,616,208 (Direct) | View |
| 2025-08-28 Gift | 2025-08-28 4:08 pm | N/A N/A | Klaviyo Inc. | KVYO | Bialecki Andrew Chief Executive Officer 10% Owner | 3,500,000 | $0 | 158,616,208 (Direct) | View |
| 2025-06-11 Conversion | 2025-06-11 4:27 pm | N/A N/A | Klaviyo Inc. | KVYO | Bialecki Andrew Chief Executive Officer 10% Owner | 100,000 | $0 | 87,796,336 (Direct) | View |
| 2025-06-11 Gift | 2025-06-11 4:27 pm | N/A N/A | Klaviyo Inc. | KVYO | Bialecki Andrew Chief Executive Officer 10% Owner | 100,000 | $0 | 87,796,336 (Direct) | View |
| 2025-05-14 Conversion | 2025-05-16 8:59 pm | N/A N/A | Klaviyo Inc. | KVYO | Bialecki Andrew Chief Executive Officer 10% Owner | 10,969,078 | $0 | 173,738,690 (Direct) | View |
| 2025-05-14 Exercise | 2025-05-16 8:59 pm | N/A N/A | Klaviyo Inc. | KVYO | Bialecki Andrew Chief Executive Officer 10% Owner | 21,429,184 | $0.0125 | 173,738,690 (Direct) | View |
| 2025-05-14 Exercise | 2025-05-16 8:59 pm | N/A 2025-08-31 | Klaviyo Inc. | KVYO | Bialecki Andrew Chief Executive Officer 10% Owner | 21,429,184 | $0 | 173,738,690 (Direct) | View |
Ownership | 2023-09-20 4:27 pm | N/A N/A | Klaviyo Inc. | KVYO | Bialecki Andrew Chief Executive Officer 10% Owner | 0 | $0 | 98,865,414 (Direct) | View |