Based on data from the past 90 days ending December 17, 2025, Klaviyo's three largest insider shareholders are Chief People Officer Carmel Galvin (639.86K shares), Chief Financial Officer Amanda Whalen (466.17K shares), President Stephen Eric Rowland (441.40K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Capital Abeh, Llc Astral | 5,129,342 | 15 Feb, 2024 | |
| Carmel Galvin | Chief People Officer | 639,860 | 18 Nov, 2025 |
| Ed Hallen | 608,518 | 12 Sep, 2025 | |
| Amanda Whalen | Chief Financial Officer | 466,174 | 18 Nov, 2025 |
| Stephen Eric Rowland | President | 441,398 | 18 Nov, 2025 |
| Landon Edmond | Chief Legal Officer | 376,472 | 21 Nov, 2025 |
| Tony Weisman | 110,185 | 11 Jun, 2025 | |
| Gomez Luciano Fernandez | Interim Executive Officer | 83,852 | 18 Nov, 2025 |
| Fund I, L.P. Accomplice | 26,720 | 23 Oct, 2023 | |
| Jennifer Ceran | 14,352 | 11 Jun, 2025 | |
| Roxanne Oulman | 14,352 | 11 Jun, 2025 | |
| Ledger Susan St. | 10,939 | 12 Sep, 2025 | |
| Jeff Fagnan | 3,900 | 10 Apr, 2025 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 09 Dec, 2025 | Andrew Bialecki | Series A Common Stock | A | 131,362 | - | 131,362 | D | C |
| 09 Dec, 2025 | Andrew Bialecki | Series A Common Stock | D | 130,562 | $29.42 | 800 | D | S |
| 09 Dec, 2025 | Andrew Bialecki | Series A Common Stock | D | 800 | $28.84 | 0 | D | S |
| 10 Dec, 2025 | Andrew Bialecki | Series A Common Stock | A | 82,223 | - | 82,223 | D | C |
| 10 Dec, 2025 | Andrew Bialecki | Series A Common Stock | D | 82,223 | $30.12 | 0 | D | S |
| 11 Dec, 2025 | Andrew Bialecki | Series A Common Stock | A | 17,777 | - | 17,777 | D | C |
| 11 Dec, 2025 | Andrew Bialecki | Series A Common Stock | D | 17,777 | $30.00 | 0 | D | S |
| 11 Dec, 2025 | Andrew Bialecki | Series A Common Stock | A | 3,419,000 | - | 3,419,000 | D | C |
| 11 Dec, 2025 | Andrew Bialecki | Series A Common Stock | D | 3,419,000 | $0.00 | 0 | D | G |
| 02 Dec, 2025 | Andrew Bialecki | Series A Common Stock | A | 142,045 | - | 142,045 | D | C |
| 02 Dec, 2025 | Andrew Bialecki | Series A Common Stock | D | 142,045 | $28.62 | 0 | D | S |
| 04 Dec, 2025 | Andrew Bialecki | Series A Common Stock | A | 952 | - | 952 | D | C |
| 04 Dec, 2025 | Andrew Bialecki | Series A Common Stock | D | 952 | $30.00 | 0 | D | S |
| 24 Nov, 2025 | Andrew Bialecki | Series A Common Stock | A | 144,717 | - | 144,717 | D | C |
| 24 Nov, 2025 | Andrew Bialecki | Series A Common Stock | D | 144,717 | $27.76 | 0 | D | S |
| 20 Nov, 2025 | Landon Edmond | Series A Common Stock | D | 10,374 | $27.83 | 380,492 | D | S |
| 20 Nov, 2025 | Landon Edmond | Series A Common Stock | D | 4,020 | $26.97 | 376,472 | D | S |
| 18 Nov, 2025 | Andrew Bialecki | Series A Common Stock | A | 147,329 | - | 147,329 | D | C |
| 18 Nov, 2025 | Andrew Bialecki | Series A Common Stock | D | 147,329 | $27.16 | 0 | D | S |
| 15 Nov, 2025 | Landon Edmond | Series A Common Stock | A | 11,426 | - | 404,010 | D | C |