Klaviyo, Inc. Series A · NYSE:KVYO
Klaviyo, Inc. Series A shareholders
As of Jun 30, 2026, 264 institutions reported holding Klaviyo, Inc. Series A, 48.6% of its shares. Largest: Summit Partners L P, Vanguard and Capital Group. New holders, exits, insiders and big stakes, each with its filing.
| Holder | Shares | % of Klaviyo, Inc. Series A | Change | Filed |
|---|---|---|---|---|
| Summit Partners L P | 18.9M | 6.3% | no change | Jul 30, 2026 |
| Vanguard | 14.8M | 4.9% | +14,271 | Aug 13, 2026 |
| Capital Group | 12.6M | 4.2% | −1.16M | Aug 12, 2026 |
| BlackRock | 7.61M | 2.5% | +3.26M | Aug 7, 2026 |
| Fidelity | 6.57M | 2.2% | −3.22M | Aug 13, 2026 |
| Whale Rock Capital Management LLC | 5.53M | 1.8% | −1.3M | Aug 14, 2026 |
| Wellington | 5.05M | 1.7% | −430K | Aug 14, 2026 |
| Morgan Stanley | 4.44M | 1.5% | −623K | Aug 13, 2026 |
| Millennium | 4.12M | 1.4% | +1.77M | Aug 14, 2026 |
| Sands Capital Alternatives, LLC | 3.93M | 1.3% | +278K | Aug 13, 2026 |