FormFactor Inc. (FORM) Ownership & Trading Activity
Institutional holders, insider transactions, and congressional trades for FORM. 13F holdings as of 2026-03-31.
Top Institutional Holders
| Institution | Shares | Value | Change |
|---|---|---|---|
| BlackRock, Inc. | 12,247,574 | $1.2B | INCREASED |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 5,880,008 | $570M | NEW |
| EARNEST PARTNERS LLC | 4,875,165 | $473M | DECREASED |
| VANGUARD CAPITAL MANAGEMENT LLC | 3,472,491 | $337M | NEW |
| STATE STREET CORP | 2,928,139 | $284M | INCREASED |
Recent Insider Trades
| Insider | Type | Shares | Value | Date |
|---|---|---|---|---|
| Thomas St Dennis (Director) | GIFT | 740 | 2026-06-15 | |
| Thomas St Dennis (Director) | SELL | 2,800 | $424K | 2026-06-15 |
| Mike Slessor (CEO) | SELL | 1,629 | $201K | 2026-06-10 |
| Mike Slessor (CEO) | SELL | 2,500 | $307K | 2026-06-10 |
| Mike Slessor (CEO) | SELL | 4,220 | $514K | 2026-06-10 |
Full institutional holdings, insider history, and congressional trades for FormFactor Inc. on SentiSense.