FORMFACTOR INC
FORM- Exchange
- Nasdaq
- Industry
- Semiconductors & Related Devices
- SEC CIK
- 0001039399
Insider trades, last 90 days
0 buys · 4 sells
- Sold $4.69M
- Open-market purchases (P) and sales (S), counted by Form 4 filing.
13F holders, Q2 2026
510
- +114 vs. Q1 2026
- Total value $11.45B
Superinvestors holding FORM
1
- At the end of Q2 2026
Price chart
Latest insider trades
View all: Latest insider tradesOpen-market purchases and sales by FORM insiders, newest first.
| Filed (ET) | Trade date | Insider | Transaction | Shares | Avg price | Value | Shares after | Holding change | Filing |
|---|---|---|---|---|---|---|---|---|---|
| Sep 17, 20267:30 PM ET | Sep 16, 2026 | SLESSOR MIKECEO | SSaleCommon Stock | −17.51K | $104.7297 | −$1.83M | 466.69K | −3.6% | SEC10b5-1 |
| Sep 4, 20264:51 PM ET | Sep 3, 2026 | STEVEN-WAISS KELLEYDirector | SSaleCommon Stock | −2.1K | $96.1001 | −$201.81K | 24.43K | −7.9% | SEC |
| Aug 17, 20266:16 PM ET | Aug 14, 2026 | SLESSOR MIKECEO | SSaleCommon Stock | −16K | $130.9544 | −$2.1M | 484.2K | −3.2% | SEC10b5-1 |
| Jul 16, 20265:30 PM ET | Jul 15, 2026 | SLESSOR MIKECEO | SSaleCommon Stock | −4.74K | $118.3093 | −$560.19K | 430.41K | −1.1% | SEC10b5-1 |
| Jun 16, 2026 | Jun 15, 2026 | St Dennis ThomasDirector | SSaleCommon Stock | −2.8K | $151.49 | −$424.17K | 29.07K | −8.8% | SEC |
Top 5 13F holders, Q2 2026
View all: Top 5 13F holders, Q2 2026The largest institutional positions in FORM at the end of Q2 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 10,484,409 | $1.68B | 0.02% | −1,763,165−14.4% | Reduced |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 5,242,203 | $838.39M | 0.04% | −637,805−10.8% | Reduced |
| EARNEST PARTNERS LLC | 3,763,214 | $601.85M | 2.17% | −1,111,951−22.8% | Reduced |
| VANGUARD CAPITAL MANAGEMENT LLC | 3,515,254 | $562.19M | 0.01% | +42,763+1.2% | Added |
| STATE STREET CORP | 2,581,477 | $412.86M | 0.01% | −346,662−11.8% | Reduced |