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 |
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 |
2025-09-15 Sale | 2025-09-17 4:40 pm | Klaviyo Inc. | KVYO | Hallen Ed Director 10% Owner | 89,748 | $31.71 | $2,845,926 | 702,216 (Indirect) | 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 |
2025-09-15 Sale | 2025-09-17 4:15 pm | Klaviyo Inc. | KVYO | Rowland Stephen Eric President | 7,105 | $31.88 | $226,518 | 438,621 (Direct) | View |
2025-09-12 Sale | 2025-09-12 6:10 pm | Klaviyo Inc. | KVYO | Whalen Amanda Chief Financial Officer | 15,000 | $31.5 | $472,500 | 890,195 (Direct) | View |
2025-09-10 Sale | 2025-09-12 6:07 pm | Klaviyo Inc. | KVYO | St. Ledger Susan Director | 3,413 | $32.2 | $109,899 | 10,939 (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 |
2025-09-08 Sale | 2025-09-10 4:15 pm | Klaviyo Inc. | KVYO | SUMMIT PARTNERS L P Summit Partners Growth Equity Fund IX-A L.P. Summit Partners Growth Equity Fund IX-B L.P. Summit Partners Co-Invest (Kiwi) LP SUMMIT INVESTORS GE IX/VC IV LLC SUMMIT INVESTORS GE IX/VC IV (UK) L.P. 10% Owner | 4,000,000 | $31.87 | $127,480,000 | 18,852,778 (Indirect) | 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 |
2025-08-25 Sale | 2025-08-27 4:05 pm | Klaviyo Inc. | KVYO | SUMMIT PARTNERS L P Summit Partners Growth Equity Fund IX-A L.P. Summit Partners Growth Equity Fund IX-B L.P. Summit Partners Co-Invest (Kiwi) LP SUMMIT INVESTORS GE IX/VC IV LLC SUMMIT INVESTORS GE IX/VC IV (UK) L.P. 10% Owner | 975,000 | $30.01 | $29,259,750 | 22,852,778 (Indirect) | View |
2025-08-15 Sale | 2025-08-19 8:51 pm | Klaviyo Inc. | KVYO | Whalen Amanda Chief Financial Officer | 15,000 | $31.32 | $469,800 | 905,195 (Direct) | View |
2025-08-18 Sale | 2025-08-19 8:49 pm | Klaviyo Inc. | KVYO | Galvin Carmel Chief People Officer | 11,155 | $31.67 | $353,279 | 675,833 (Direct) | View |
2025-08-18 Sale | 2025-08-19 8:47 pm | Klaviyo Inc. | KVYO | Rowland Stephen Eric President | 7,105 | $31.46 | $223,523 | 1,295,175 (Direct) | View |
2025-08-18 Sale | 2025-08-19 8:44 pm | Klaviyo Inc. | KVYO | Edmond Landon Chief Legal Officer | 9,965 | $31.46 | $313,499 | 493,658 (Direct) | View |
2025-08-13 Sale | 2025-08-15 4:17 pm | Klaviyo Inc. | KVYO | SUMMIT PARTNERS L P Summit Partners Growth Equity Fund IX-A L.P. Summit Partners Growth Equity Fund IX-B L.P. Summit Partners Co-Invest (Kiwi) LP SUMMIT INVESTORS GE IX/VC IV LLC SUMMIT INVESTORS GE IX/VC IV (UK) L.P. 10% Owner | 6,500,000 | $30.01 | $195,065,000 | 24,327,778 (Indirect) | View |
2025-07-15 Sale | 2025-07-16 5:59 pm | Klaviyo Inc. | KVYO | Rowland Stephen Eric President | 7,079 | $31.56 | $223,413 | 435,845 (Direct) | View |
2025-07-11 Sale | 2025-07-14 4:09 pm | Klaviyo Inc. | KVYO | Whalen Amanda Chief Financial Officer | 15,000 | $31.66 | $474,832 | 967,024 (Direct) | View |
2025-06-16 Sale | 2025-06-17 4:33 pm | Klaviyo Inc. | KVYO | Rowland Stephen Eric President | 7,079 | $34.56 | $244,632 | 442,924 (Direct) | View |
2025-06-13 Sale | 2025-06-13 6:55 pm | Klaviyo Inc. | KVYO | Whalen Amanda Chief Financial Officer | 15,000 | $33.47 | $502,050 | 982,024 (Direct) | View |
2025-06-04 Sale | 2025-06-05 7:13 pm | Klaviyo Inc. | KVYO | SUMMIT PARTNERS L P Summit Partners Growth Equity Fund IX-A L.P. Summit Partners Growth Equity Fund IX-B L.P. Summit Partners Co-Invest (Kiwi) LP SUMMIT INVESTORS GE IX/VC IV LLC SUMMIT INVESTORS GE IX/VC IV (UK) L.P. 10% Owner | 4,000,000 | $33.35 | $133,400,000 | 30,827,778 (Indirect) | View |
2025-05-19 Sale | 2025-05-20 6:25 pm | Klaviyo Inc. | KVYO | SUMMIT PARTNERS L P Summit Partners Growth Equity Fund IX-A L.P. Summit Partners Growth Equity Fund IX-B L.P. Summit Partners Co-Invest (Kiwi) LP SUMMIT INVESTORS GE IX/VC IV LLC SUMMIT INVESTORS GE IX/VC IV (UK) L.P. 10% Owner | 4,000,000 | $33 | $132,000,000 | 34,827,778 (Indirect) | 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 |
2025-05-16 Sale | 2025-05-16 8:47 pm | Klaviyo Inc. | KVYO | Edmond Landon Chief Legal Officer | 9,965 | $34.85 | $347,280 | 550,818 (Direct) | View |
2025-05-15 Sale | 2025-05-16 8:46 pm | Klaviyo Inc. | KVYO | Rowland Stephen Eric President | 14,139 | $34.93 | $493,863 | 1,401,974 (Direct) | View |
2025-05-16 Sale | 2025-05-16 8:43 pm | Klaviyo Inc. | KVYO | Galvin Carmel Chief People Officer | 11,156 | $35.01 | $390,572 | 711,805 (Direct) | View |
2025-05-16 Sale | 2025-05-16 8:41 pm | Klaviyo Inc. | KVYO | Whalen Amanda Chief Financial Officer | 15,000 | $34.98 | $524,700 | 997,024 (Direct) | View |
2025-04-15 Sale | 2025-04-16 5:14 pm | Klaviyo Inc. | KVYO | Rowland Stephen Eric President | 7,060 | $26.66 | $188,220 | 447,310 (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 |
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 |
2025-09-15 Gift | 2025-09-17 4:40 pm | N/A N/A | Klaviyo Inc. | KVYO | Hallen Ed Director 10% Owner | 20,260 | $0 | 702,216 (Indirect) | 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 |
2025-09-15 Option Award | 2025-09-17 4:19 pm | N/A N/A | Klaviyo Inc. | KVYO | Fernandez Gomez Luciano Interim Executive Officer | 100,597 | $0 | 127,385 (Direct) | View |
2025-09-12 Conversion | 2025-09-12 6:10 pm | N/A N/A | Klaviyo Inc. | KVYO | Whalen Amanda Chief Financial Officer | 11,204 | $0 | 890,195 (Direct) | View |
2025-09-11 Gift | 2025-09-12 6:08 pm | N/A N/A | Klaviyo Inc. | KVYO | Hallen Ed Director 10% Owner | 1,980,000 | $0 | 32,789,106 (Direct) | View |
2025-09-11 Conversion | 2025-09-12 6:08 pm | N/A N/A | Klaviyo Inc. | KVYO | Hallen Ed Director 10% Owner | 990,000 | $0 | 32,789,106 (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 |
2025-09-08 Conversion | 2025-09-10 4:15 pm | N/A N/A | Klaviyo Inc. | KVYO | SUMMIT PARTNERS L P Summit Partners Growth Equity Fund IX-A L.P. Summit Partners Growth Equity Fund IX-B L.P. Summit Partners Co-Invest (Kiwi) LP SUMMIT INVESTORS GE IX/VC IV LLC SUMMIT INVESTORS GE IX/VC IV (UK) L.P. 10% Owner | 4,000,000 | $0 | 18,852,778 (Indirect) | 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 |
2025-08-28 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 |
2025-08-26 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 |
2025-08-25 Conversion | 2025-08-27 4:05 pm | N/A N/A | Klaviyo Inc. | KVYO | SUMMIT PARTNERS L P Summit Partners Growth Equity Fund IX-A L.P. Summit Partners Growth Equity Fund IX-B L.P. Summit Partners Co-Invest (Kiwi) LP SUMMIT INVESTORS GE IX/VC IV LLC SUMMIT INVESTORS GE IX/VC IV (UK) L.P. 10% Owner | 975,000 | $0 | 22,852,778 (Indirect) | View |
2025-08-21 Other | 2025-08-22 4:12 pm | N/A N/A | Klaviyo Inc. | KVYO | SUMMIT PARTNERS L P Summit Partners Growth Equity Fund IX-A L.P. Summit Partners Growth Equity Fund IX-B L.P. 10% Owner | 500,000 | $0 | 500,000 (Indirect) | View |
2025-08-15 Tax Withholding | 2025-08-19 8:52 pm | N/A N/A | Klaviyo Inc. | KVYO | Fernandez Gomez Luciano Director | 7,000 | $31.43 | 82,788 (Direct) | View |
2025-08-15 Conversion | 2025-08-19 8:52 pm | N/A N/A | Klaviyo Inc. | KVYO | Fernandez Gomez Luciano Director | 7,000 | $0 | 82,788 (Direct) | View |
2025-08-15 Tax Withholding | 2025-08-19 8:51 pm | N/A N/A | Klaviyo Inc. | KVYO | Whalen Amanda Chief Financial Officer | 46,829 | $31.43 | 905,195 (Direct) | View |
2025-08-15 Conversion | 2025-08-19 8:51 pm | N/A N/A | Klaviyo Inc. | KVYO | Whalen Amanda Chief Financial Officer | 29,513 | $0 | 905,195 (Direct) | View |
2025-08-15 Tax Withholding | 2025-08-19 8:49 pm | N/A N/A | Klaviyo Inc. | KVYO | Galvin Carmel Chief People Officer | 24,817 | $31.43 | 675,833 (Direct) | View |
2025-08-15 Tax Withholding | 2025-08-19 8:47 pm | N/A N/A | Klaviyo Inc. | KVYO | Rowland Stephen Eric President | 34,326 | $31.43 | 1,295,175 (Direct) | View |
2025-08-15 Conversion | 2025-08-19 8:47 pm | N/A N/A | Klaviyo Inc. | KVYO | Rowland Stephen Eric President | 51,312 | $0 | 1,295,175 (Direct) | View |
2025-08-15 Tax Withholding | 2025-08-19 8:44 pm | N/A N/A | Klaviyo Inc. | KVYO | Edmond Landon Chief Legal Officer | 24,695 | $31.43 | 493,658 (Direct) | View |
2025-08-15 Conversion | 2025-08-19 8:44 pm | N/A N/A | Klaviyo Inc. | KVYO | Edmond Landon Chief Legal Officer | 22,500 | $0 | 493,658 (Direct) | View |
2025-08-13 Conversion | 2025-08-15 4:17 pm | N/A N/A | Klaviyo Inc. | KVYO | SUMMIT PARTNERS L P Summit Partners Growth Equity Fund IX-A L.P. Summit Partners Growth Equity Fund IX-B L.P. Summit Partners Co-Invest (Kiwi) LP SUMMIT INVESTORS GE IX/VC IV LLC SUMMIT INVESTORS GE IX/VC IV (UK) L.P. 10% Owner | 7,000,000 | $0 | 24,327,778 (Indirect) | View |
2025-07-28 Exercise | 2025-07-29 4:53 pm | N/A N/A | Klaviyo Inc. | KVYO | Shopify Strategic Holdings 3 LLC SHOPIFY INC. 10% Owner | 344,383 | $0.01 | 18,695,020 (Direct) | View |
2025-07-28 Exercise | 2025-07-29 4:53 pm | N/A 2032-07-28 | Klaviyo Inc. | KVYO | Shopify Strategic Holdings 3 LLC SHOPIFY INC. 10% Owner | 344,383 | $0 | 18,695,020 (Direct) | View |
2025-07-11 Conversion | 2025-07-14 4:09 pm | N/A N/A | Klaviyo Inc. | KVYO | Whalen Amanda Chief Financial Officer | 15,000 | $0 | 967,024 (Direct) | View |
2025-06-13 Conversion | 2025-06-13 6:55 pm | N/A N/A | Klaviyo Inc. | KVYO | Whalen Amanda Chief Financial Officer | 11,204 | $0 | 982,024 (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 |
2025-06-11 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 |
2025-06-10 Tax Withholding | 2025-06-11 4:25 pm | N/A N/A | Klaviyo Inc. | KVYO | Fernandez Gomez Luciano Director | 2,560 | $34.03 | 26,788 (Direct) | View |
2025-06-10 Option Award | 2025-06-11 4:25 pm | N/A N/A | Klaviyo Inc. | KVYO | Fernandez Gomez Luciano Director | 5,820 | $0 | 26,788 (Direct) | View |
2025-06-10 Option Award | 2025-06-11 4:22 pm | N/A N/A | Klaviyo Inc. | KVYO | Weisman Tony Director | 5,820 | $0 | 110,185 (Direct) | View |
2025-06-10 Option Award | 2025-06-11 4:21 pm | N/A N/A | Klaviyo Inc. | KVYO | Oulman Roxanne Director | 5,820 | $0 | 14,352 (Direct) | View |
2025-06-10 Option Award | 2025-06-11 4:19 pm | N/A N/A | Klaviyo Inc. | KVYO | Ceran Jennifer Director | 5,820 | $0 | 14,352 (Direct) | View |
2025-06-10 Option Award | 2025-06-11 4:17 pm | N/A N/A | Klaviyo Inc. | KVYO | St. Ledger Susan Director | 5,820 | $0 | 14,352 (Direct) | View |
2025-06-04 Conversion | 2025-06-05 7:13 pm | N/A N/A | Klaviyo Inc. | KVYO | SUMMIT PARTNERS L P Summit Partners Growth Equity Fund IX-A L.P. Summit Partners Growth Equity Fund IX-B L.P. Summit Partners Co-Invest (Kiwi) LP SUMMIT INVESTORS GE IX/VC IV LLC SUMMIT INVESTORS GE IX/VC IV (UK) L.P. 10% Owner | 4,000,000 | $0 | 30,827,778 (Indirect) | View |
2025-05-19 Conversion | 2025-05-20 6:25 pm | N/A N/A | Klaviyo Inc. | KVYO | SUMMIT PARTNERS L P Summit Partners Growth Equity Fund IX-A L.P. Summit Partners Growth Equity Fund IX-B L.P. Summit Partners Co-Invest (Kiwi) LP SUMMIT INVESTORS GE IX/VC IV LLC SUMMIT INVESTORS GE IX/VC IV (UK) L.P. 10% Owner | 4,000,000 | $0 | 34,827,778 (Indirect) | 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 |
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 |
2025-05-15 Conversion | 2025-05-16 8:47 pm | N/A N/A | Klaviyo Inc. | KVYO | Edmond Landon Chief Legal Officer | 22,500 | $0 | 550,818 (Direct) | View |
2025-05-15 Tax Withholding | 2025-05-16 8:47 pm | N/A N/A | Klaviyo Inc. | KVYO | Edmond Landon Chief Legal Officer | 24,694 | $34.9 | 550,818 (Direct) | View |
2025-05-15 Conversion | 2025-05-16 8:46 pm | N/A N/A | Klaviyo Inc. | KVYO | Rowland Stephen Eric President | 51,312 | $0 | 1,401,974 (Direct) | View |
2025-05-15 Tax Withholding | 2025-05-16 8:46 pm | N/A N/A | Klaviyo Inc. | KVYO | Rowland Stephen Eric President | 34,480 | $34.9 | 1,401,974 (Direct) | View |
2025-05-15 Tax Withholding | 2025-05-16 8:43 pm | N/A N/A | Klaviyo Inc. | KVYO | Galvin Carmel Chief People Officer | 24,817 | $34.9 | 711,805 (Direct) | View |
2025-05-15 Conversion | 2025-05-16 8:41 pm | N/A N/A | Klaviyo Inc. | KVYO | Whalen Amanda Chief Financial Officer | 29,513 | $0 | 997,024 (Direct) | View |
2025-05-15 Tax Withholding | 2025-05-16 8:41 pm | N/A N/A | Klaviyo Inc. | KVYO | Whalen Amanda Chief Financial Officer | 46,829 | $34.9 | 997,024 (Direct) | View |
2025-04-28 Exercise | 2025-04-29 5:04 pm | N/A N/A | Klaviyo Inc. | KVYO | Shopify Strategic Holdings 3 LLC SHOPIFY INC. 10% Owner | 344,382 | $0.01 | 18,695,020 (Direct) | View |
2025-04-28 Exercise | 2025-04-29 5:04 pm | N/A 2032-07-28 | Klaviyo Inc. | KVYO | Shopify Strategic Holdings 3 LLC SHOPIFY INC. 10% Owner | 344,382 | $0 | 18,695,020 (Direct) | View |