FORM: FORMFACTOR INC insider trading, 5% holders and institutional ownership
From public SEC filings: open-market insider purchases and sales (Form 4, last 180 days), holders of 5% or more (Schedules 13D and 13G) and institutional ownership (Form 13F). Insider and 5% data delayed 48 hours.
Insider trading
0 open-market buys totaling - and 3 sales totaling $1.39M in the last 180 days.
Insider sales
| Trade date | Insider | Role | Value | 10b5-1 plan |
|---|---|---|---|---|
| 2026-10-14 | Slessor Mike | CEO | $273K | yes |
| 2026-10-14 | Slessor Mike | CEO | $966K | yes |
| 2026-10-14 | Slessor Mike | CEO | $151K | yes |
Activist and 5% holders
| Filed | What | Holder | Stake | Change | Filing |
|---|---|---|---|---|---|
| 2026-08-14 | Fell below 5% | EARNEST PARTNERS LLC | 4.80% | SEC | |
| 2026-07-28 | 13G amendment | BlackRock, Inc. | 12.40% | SEC |
Institutional ownership (Q2 2026)
511 institutions reported holding $10.94B of FORMFACTOR INC on Form 13F (397 the quarter before). 154 opened a new position and 40 sold out. Shares held by institutions: -3%.
| Largest holders | Shares | Value |
|---|---|---|
| BlackRock, Inc. | 10,484,409 | $1.68B |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 5,242,203 | $838.39M |
| EARNEST PARTNERS LLC | 3,763,214 | $601.85M |
| VANGUARD CAPITAL MANAGEMENT LLC | 3,515,254 | $562.19M |
| STATE STREET CORP | 2,581,477 | $412.86M |
| Polar Capital Holdings Plc | 2,146,098 | $343.23M |
| GEODE CAPITAL MANAGEMENT, LLC | 1,833,001 | $294.52M |
| BANK OF AMERICA CORP /DE/ | 1,783,638 | $285.26M |
| PRIMECAP MANAGEMENT CO/CA/ | 1,690,114 | $270.30M |
| Invesco Ltd. | 1,578,533 | $252.45M |
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