FormFactor, Inc. (FORM) ownership: Top institutional holder: BlackRock, Inc. ($1.19B). Insider activity: Net Seller (0 buys, 20 sells). SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| BlackRock, Inc. | 12247574.00 | $1.19B | 2026-03-31 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 5880008.00 | $570.30M | 2026-03-31 |
| VANGUARD GROUP INC | 10221530.00 | $570.16M | 2025-12-31 |
| EARNEST PARTNERS LLC | 4875165.00 | $472.84M | 2026-03-31 |
| VANGUARD CAPITAL MANAGEMENT LLC | 3472491.00 | $336.80M | 2026-03-31 |
| STATE STREET CORP | 2928139.00 | $284.00M | 2026-03-31 |
| BANK OF AMERICA CORP /DE/ | 2481059.00 | $240.64M | 2026-03-31 |
| Polar Capital Holdings Plc | 2292313.00 | $222.33M | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-06-10 | |
| Sell | null | 2026-06-10 | |
| Sell | null | 2026-06-10 | |
| Sell | null | 2026-06-10 | |
| Sell | null | 2026-06-10 | |
| Sell | null | 2026-06-10 | |
| Sell | null | 2026-06-10 | |
| Sell | null | 2026-06-02 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.