FormFactor Inc. (FORM) Ownership & Trading Activity
Institutional holders, insider transactions, and congressional trades for FORM. 13F holdings as of 2026-06-30.
In 13F filings for the quarter ended June 30, 2026, 496 institutions reported holding FORM, with 71.8 million shares worth $11.4 billion in aggregate.
Top Institutional Holders
| Institution | Shares | Value | Change |
|---|---|---|---|
| BlackRock | 10,484,409 | $1.7B | DECREASED |
| Vanguard | 9,403,961 | $1.5B | DECREASED |
| Earnest Partners | 3,763,214 | $602M | DECREASED |
| State Street | 2,581,477 | $413M | DECREASED |
| Polar Capital Holdings | 2,146,098 | $343M | DECREASED |
Recent Insider Trades
| Insider | Type | Shares | Value | Date |
|---|---|---|---|---|
| Mike Slessor (CEO) | SELL | 1,200 | $151K | 2026-10-14 |
| Mike Slessor (CEO) | SELL | 7,703 | $966K | 2026-10-14 |
| Mike Slessor (CEO) | SELL | 2,195 | $273K | 2026-10-14 |
| Mike Slessor (CEO) | SELL | 1,000 | $106K | 2026-09-16 |
| Mike Slessor (CEO) | SELL | 7,773 | $817K | 2026-09-16 |
Recent Congressional Trades
| Member | Type | Amount | Date |
|---|---|---|---|
| Michael T. McCaul (Republican) | PURCHASE | $1,001 - $15,000 | 2026-08-05 |
| Michael T. McCaul (Republican) | PURCHASE | $1,001 - $15,000 | 2026-08-04 |
Full institutional holdings, insider history, and congressional trades for FormFactor Inc. on SentiSense.