18 insiders reported 353 Form 4 transactions for Klaviyo, Inc. (KVYO) over the past 18 months (most recent 2026-08-18). Recent activity: Fernandez Gomez Luciano (Co-Chief Executive Officer) Buy 7,001 shares, Galvin Carmel (Chief People Officer) Sell 30,541 shares, Whalen Amanda (Chief Financial Officer) Sell 14,000 shares, Edmond Landon (Chief Legal Officer) Sell 22,342 shares, Fernandez Gomez Luciano (Co-Chief Executive Officer) Sell 29,133 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-18 | Fernandez Gomez Luciano | Co-Chief Executive Officer | Buy | 7,001 | $0 |
| 2026-08-18 | Galvin Carmel | Chief People Officer | Sell | 30,541 | $564,703 |
| 2026-08-18 | Whalen Amanda | Chief Financial Officer | Sell | 14,000 | $258,580 |
| 2026-08-18 | Edmond Landon | Chief Legal Officer | Sell | 22,342 | $413,104 |
| 2026-08-18 | Fernandez Gomez Luciano | Co-Chief Executive Officer | Sell | 29,133 | $538,669 |
| 2026-08-18 | Whalen Amanda | Chief Financial Officer | Sell | 28,950 | $535,286 |
| 2026-08-13 | Summit Partners Growth Equity Fund IX-A, L.P. | 10% Owner | Sell | 5.0M | $88.5M |
| 2026-08-13 | Summit Partners Growth Equity Fund IX-A, L.P. | 10% Owner | Buy | 5.0M | $0 |
| 2026-08-13 | SUMMIT INVESTORS GE IX/VC IV, LLC | 10% Owner | Buy | 5.0M | $0 |
| 2026-08-13 | Summit Partners Co-Invest (Kiwi), LP | 10% Owner | Buy | 5.0M | $0 |
| 2026-08-13 | SUMMIT INVESTORS GE IX/VC IV (UK), L.P. | 10% Owner | Buy | 5.0M | $0 |
| 2026-08-13 | SUMMIT PARTNERS L P | 10% Owner | Buy | 5.0M | $0 |
| 2026-08-13 | Summit Partners Growth Equity Fund IX-B, L.P. | 10% Owner | Buy | 5.0M | $0 |
| 2026-08-13 | Summit Partners Growth Equity Fund IX-B, L.P. | 10% Owner | Sell | 5.0M | $88.5M |
| 2026-08-13 | SUMMIT INVESTORS GE IX/VC IV, LLC | 10% Owner | Sell | 5.0M | $88.5M |
| 2026-08-13 | Summit Partners Co-Invest (Kiwi), LP | 10% Owner | Sell | 5.0M | $88.5M |
| 2026-08-13 | SUMMIT INVESTORS GE IX/VC IV (UK), L.P. | 10% Owner | Sell | 5.0M | $88.5M |
| 2026-08-13 | SUMMIT PARTNERS L P | 10% Owner | Sell | 5.0M | $88.5M |
| 2026-07-24 | Oulman Roxanne | Director | Buy | 16,775 | $0 |
| 2026-07-17 | Whalen Amanda | Chief Financial Officer | Sell | 14,000 | $248,500 |
| 2026-06-18 | Whalen Amanda | Chief Financial Officer | Sell | 14,000 | $185,220 |
| 2026-06-11 | Weisman Tony | Director | Buy | 14,822 | $0 |
| 2026-06-11 | Ceran Jennifer | Director | Buy | 14,822 | $0 |
| 2026-06-11 | St. Ledger Susan | Director | Buy | 14,822 | $0 |
| 2026-06-11 | Oulman Roxanne | Director | Buy | 14,822 | $0 |
Source: SEC Form 4 filings · as of 2026-08-18