According to recent filings covering the 90 days ending January 10, 2026, the three most significant insider holders at Klaviyo are TenPercentOwner Capital Abeh, Llc Astral (5.13Mn shares), Chief People Officer Carmel Galvin (639.86K shares), Director Ed Hallen (525.25K 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 | 525,246 | 12 Sep, 2025 | |
| Amanda Whalen | Chief Financial Officer | 452,174 | 19 Dec, 2025 |
| Stephen Eric Rowland | President | 434,294 | 17 Dec, 2025 |
| Landon Edmond | Chief Legal Officer | 353,882 | 19 Dec, 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 | |
| Roxanne Oulman | 14,352 | 11 Jun, 2025 | |
| Jennifer Ceran | 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 |
|---|---|---|---|---|---|---|---|---|
| 07 Jan, 2026 | Andrew Bialecki | Series A Common Stock | D | 16,649 | $30.01 | 0 | D | S |
| 07 Jan, 2026 | Andrew Bialecki | Series A Common Stock | A | 16,649 | - | 16,649 | D | C |
| 06 Jan, 2026 | Andrew Bialecki | Series A Common Stock | A | 137,504 | - | 137,504 | D | C |
| 06 Jan, 2026 | Andrew Bialecki | Series A Common Stock | D | 2,382 | $28.52 | 0 | D | S |
| 06 Jan, 2026 | Andrew Bialecki | Series A Common Stock | D | 135,122 | $28.92 | 2,382 | D | S |
| 22 Dec, 2025 | Andrew Bialecki | Series A Common Stock | A | 100,000 | - | 100,000 | D | C |
| 22 Dec, 2025 | Andrew Bialecki | Series A Common Stock | D | 6,934 | $31.94 | 0 | D | S |
| 22 Dec, 2025 | Andrew Bialecki | Series A Common Stock | D | 93,066 | $33.05 | 6,934 | D | S |
| 18 Dec, 2025 | Amanda Whalen | Series A Common Stock | D | 13,540 | $31.41 | 452,634 | D | S |
| 18 Dec, 2025 | Amanda Whalen | Series A Common Stock | D | 460 | $30.59 | 452,174 | D | S |
| 18 Dec, 2025 | Amanda Whalen | - | - | 452,634 | D | |||
| 18 Dec, 2025 | Landon Edmond | Series A Common Stock | D | 13,718 | $31.41 | 354,354 | D | S |
| 18 Dec, 2025 | Landon Edmond | Series A Common Stock | D | 472 | $30.55 | 353,882 | D | S |
| 17 Dec, 2025 | Andrew Bialecki | Series A Common Stock | A | 100,000 | - | 100,000 | D | C |
| 17 Dec, 2025 | Andrew Bialecki | Series A Common Stock | D | 100,000 | $30.40 | 0 | D | S |
| 17 Dec, 2025 | Ed Hallen | - | - | 133,624 | I | |||
| 17 Dec, 2025 | Ed Hallen | Series A Common Stock | D | 34,878 | $30.35 | 133,624 | I | S |
| 17 Dec, 2025 | Ed Hallen | Series A Common Stock | D | 82,672 | $30.37 | 525,246 | I | S |
| 17 Dec, 2025 | Ed Hallen | - | - | 525,246 | I | |||
| 16 Dec, 2025 | Andrew Bialecki | Series A Common Stock | D | 138,648 | $29.04 | 0 | D | S |