FormFactor (FORM)
Builds custom probe cards and systems for semiconductor test and measurement.
$122.18
vs last close+2.87 (+2.41%)
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13F · 13D/G · Form 4
| Institutions | ≈ 89.67% | 70.05M shares | |
|---|---|---|---|
| 528 holders · as of Jun 30, 2026 · largest filers plus last quarter's tail | |||
| Insiders | 0.82% | 639.7K shares | |
| 10 holders · as of Sep 17, 2026 | |||
| Other | ≈ 9.51% | 7.43M shares | |
| remainder | |||
78.12M company shares as of Sep 22, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing
This quarter's institutional total failed a plausibility check; shown: the largest filers plus last quarter's remainder.
13F, as of Jun 30, 2026
528 holders · 70.05M shares · 161 new positions · 304 increased · 172 reduced · 49 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 10.48M | 13.42% | −1.76M | Aug 7, 2026 |
| Vanguard Portfolio Management LLC | 5.24M | 6.71% | −637.8K | Aug 13, 2026 |
| Earnest Partners LLC | 3.76M | 4.82% | −1.11M | Aug 13, 2026 |
| Vanguard Capital Management LLC | 3.52M | 4.50% | +42.8K | Aug 13, 2026 |
| State Street Corp | 2.58M | 3.30% | −346.7K | Aug 7, 2026 |
| Polar Capital Holdings PLC | 2.15M | 2.75% | −146.2K | Aug 14, 2026 |
| Geode Capital Management, LLC | 1.83M | 2.35% | −354.9K | Aug 12, 2026 |
| Bank of America Corp /DE/ | 1.78M | 2.28% | −697.4K | Aug 14, 2026 |
13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| Vanguard Portfolio Management | 7.61% | 5.94M | 13G | Apr 29, 2026 |
| Earnest Partners LLC | 6.30% | 4.88M | 13G | May 15, 2026 |
| Vanguard Capital Management | 5.21% | 4.07M | 13G | Apr 29, 2026 |
Form 4
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Sep 16, 2026 | Mike Slessordirector, officer: CEO | Sale · 3 lots | 17,510 | $104.73 | 466,694 |
| Sep 3, 2026 | Kelley Steven-Waissdirector | Sale | 2,100 | $96.10 | 24,426 |
| Aug 14, 2026 | Mike Slessordirector, officer: CEO | Sale · 6 lots | 16,002 | $130.95 | 484,204 |
| Jul 15, 2026 | Mike Slessordirector, officer: CEO | Sale · 6 lots | 4,735 | $118.31 | 430,412 |
| Jun 15, 2026 | Thomas st Dennisdirector | Sale | 2,800 | $151.49 | 29,073 |
| Jun 10, 2026 | Mike Slessordirector, officer: CEO | Sale · 7 lots | 11,890 | $121.35 | 435,147 |
| Jun 2, 2026 | Sheri Rhodesdirector | Sale | 6,328 | $125.40 | 5,375 |
| May 21, 2026 | Rebeca Obregon-Jimenezdirector | Sale | 3,828 | $126.48 | 7,875 |
| May 19, 2026 | Thomas st Dennisdirector | Sale | 1,000 | $115.84 | 31,873 |
| May 20, 2026 | Brian C. Whitedirector | Sale | 3,250 | $126.00 | 8,653 |
House and Senate disclosures
Not reported.