| $255M | ||
| $48M | ||
| $38M | ||
| $37M | ||
| $34M | ||
| $34M |
Buys | $0 | 0 | 0 |
Sells | $23,439,434 | 32 | 100 |
| BREWER KEVIN J | director | 0 | $0 | 1 | $288,600 | $-288,600 |
| McKinnis Aric Brendan | CFO, SVP Global Finance | 0 | $0 | 1 | $313,034 | $-313,034 |
| Titinger Jorge | director | 0 | $0 | 2 | $693,979 | $-693,979 |
| Obregon-Jimenez Rebeca | director | 0 | $0 | 2 | $749,568 | $-749,568 |
| WHITE BRIAN C | director | 0 | $0 | 3 | $1.14M | $-1.14M |
| STEVEN-WAISS KELLEY | director | 0 | $0 | 4 | $1.24M | $-1.24M |
| St Dennis Thomas | director | 0 | $0 | 4 | $1.34M | $-1.34M |
| Rhodes Sheri | director | 0 | $0 | 2 | $1.5M | $-1.5M |
| SLESSOR MIKE | CEO | 0 | $0 | 13 | $16.18M | $-16.18M |
FormFactor, Inc., established in Livermore, California in 1993, specializes in the design, manufacturing, and global distribution of advanced test and measurement solutions for the semiconductor industry. The company primarily caters to semiconductor manufacturers and research institutions, operating through two main divisions: Probe Cards and Systems. Within the Probe Cards segment, FormFactor supplies crucial components designed to verify the functionality of a wide array of integrated circuits. These include complex system-on-chip (SoC) …
Over the last 12 months, insiders at FormFactor, Inc. have bought $0 and sold $23.44M worth of FormFactor, Inc. stock.
On average, over the past 5 years, insiders at FormFactor, Inc. have bought $0 and sold $8.13M worth of stock each year.
There was no buying activity among insiders over the last 12 months.
The last purchase of 2,000 shares for transaction amount of $17,900 was made by LINK RAYMOND A (director) on 2016‑11‑01.
| 2026-10-14 | Sale | SLESSOR MIKE | CEO | 11,098 0.0149% | $125.20 | $1.39M | -13.91% | |
| 2026-09-16 | Sale | SLESSOR MIKE | CEO | 17,510 0.0224% | $104.73 | $1.83M | +14.01% | |
| 2026-09-03 | Sale | STEVEN-WAISS KELLEY | director | 2,100 0.0027% | $96.10 | $201,810 | +17.57% | |
| 2026-08-14 | Sale | SLESSOR MIKE | CEO | 16,002 0.0204% | $130.95 | $2.1M | -14.78% | |
| 2026-07-15 | Sale | SLESSOR MIKE | CEO | 4,735 0.0062% | $118.31 | $560,195 | -3.01% | |
| 2026-06-15 | Sale | St Dennis Thomas | director | 2,800 0.0036% | $151.49 | $424,172 | -25.09% | |
| 2026-06-10 | Sale | SLESSOR MIKE | CEO | 11,890 0.016% | $121.35 | $1.44M | -0.74% | |
| 2026-06-02 | Sale | Rhodes Sheri | director | 6,328 0.0081% | $125.40 | $793,531 | -7.51% | |
| 2026-05-21 | Sale | Obregon-Jimenez Rebeca | director | 3,828 0.0049% | $126.47 | $484,146 | -9.32% | |
| 2026-05-20 | Sale | WHITE BRIAN C | director | 3,250 0.0042% | $126.00 | $409,500 | -7.17% | |
| 2026-05-19 | Sale | St Dennis Thomas | director | 1,000 0.0013% | $115.84 | $115,840 | -0.58% | |
| 2026-05-15 | Sale | STEVEN-WAISS KELLEY | director | 5,400 0.0068% | $125.60 | $678,241 | -7.38% | |
| 2026-05-13 | Sale | SLESSOR MIKE | CEO | 9,438 0.0118% | $126.52 | $1.19M | -9.29% | |
| 2026-05-13 | Sale | Titinger Jorge | director | 4,009 0.0051% | $128.78 | $516,299 | -9.29% | |
| 2026-04-15 | Sale | SLESSOR MIKE | CEO | 11,294 0.0153% | $127.72 | $1.44M | -6.77% | |
| 2026-03-18 | Sale | SLESSOR MIKE | CEO | 10,227 0.013% | $95.15 | $973,076 | +24.05% | |
| 2026-03-05 | Sale | McKinnis Aric Brendan | CFO, SVP Global Finance | 3,462 0.0046% | $90.42 | $313,034 | +35.54% | |
| 2026-02-24 | Sale | WHITE BRIAN C | director | 2,300 0.003% | $100.01 | $230,023 | +16.03% | |
| 2026-02-18 | Sale | SLESSOR MIKE | CEO | 8,664 0.0111% | $94.14 | $815,597 | +22.32% | |
| 2026-02-11 | Sale | BREWER KEVIN J | director | 3,000 0.0039% | $96.20 | $288,600 | +20.44% |
| St Dennis Thomas | director | 29073 0.0372% | $2.81M | 1 | 47 | +23.28% |
| LUDWIG MICHAEL M | SR VP, CFO | 240387 0.3077% | $23.27M | 1 | 30 | +14.36% |
| HATSUKANO YOSHIKAZU | Sr. VP & President, FFI KK | 119300 0.1527% | $11.55M | 1 | 13 | +14.36% |
| MERKADEAU STUART L | SR VP GENERAL COUNSEL | 78629 0.1007% | $7.61M | 1 | 55 | +14.36% |
| LINK RAYMOND A | 61392 0.0786% | $5.94M | 2 | 6 | +27.54% | |
| PRESTRIDGE JAMES A | director | 39748 0.0509% | $3.85M | 1 | 4 | +6.65% |
| ELDRIDGE BENJAMIN N | Sr. VP of Development & CTO | 32070 0.0411% | $3.1M | 1 | 31 | +14.36% |
| RUST HARROLD J | VP- Operations | 500 0.0006% | $48,395.00 | 1 | 1 | +14.36% |
$900,351,833 | 62 | 37.88% | $9.32B | |
$14,028 | 32 | 7.79% | $2.63B | |
$17,875,978 | 28 | 19.26% | $5.63B | |
$8,624,272 | 27 | 51.83% | $5.43B | |
$8,266,881 | 25 | 162.69% | $3.88B |
| Increased Positions | 199 | +61.61% | 11M | +14.23% |
| Decreased Positions | 142 | -43.96% | 10M | -13.15% |
| New Positions | 93 | New | 3M | New |
| Sold Out Positions | 35 | Sold Out | 2M | Sold Out |
| Total Postitions | 380 | +17.65% | 76M | +1.08% |
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| Bank Of America Corp /De/ | $149,948.00 | 3.25% | 2.53M | -273,565 | -9.75% | 2025-09-30 |
| Reinhart Partners, Llc. | $142,343.00 | 3.08% | 2.4M | +500,156 | +26.26% | 2025-09-30 |
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| Primecap Management Co/Ca/ | $137,594.00 | 2.98% | 2.32M | +3,290 | +0.14% | 2025-09-30 |
| Dimensional Fund Advisors Lp | $128,500.00 | 2.78% | 2.17M | -7,844 | -0.36% | 2025-09-30 |
| Massachusetts Financial Services Co /Ma/ | $126,136.00 | 2.73% | 2.13M | -86,177 | -3.89% | 2025-09-30 |