Formfactor Inc

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Formfactor Inc
TickerFORM
CIK #0001039399
CUSIP346375108
SectorManufacturing - Semiconductors & Related Devices
Address7005 Southfront Road, Livermore, CA 94551
Source [EDGAR]
Reg D Offering (Form D) Filed Raised Terms
Formfactor Inc 2025-01-17 15.0 M Exemption: 506(b) · Duration: One year or less · Revenue: Decline to Disclose
CIK Filing 2011 - 2026
[0001039399] 10-K
[0001039399] 10-Q
[0001039399] 3
[0001039399] 4
[0001039399] 8-K
[0001039399] D
[0001039399] SC 13G
Form 13D/13G Filer Form 13D/13G Subject Filed % Owned
Vanguard Capital Management LLC Formfactor Inc [2026-04-29] 0.0
Vanguard Portfolio Management LLC Formfactor Inc [2026-04-29] 0.0
Earnest Partners LLC Formfactor Inc [2019-02-14] 5.9
Wellington Management Group LLP Formfactor Inc [2018-05-10] 10.46
Wellington Management Group LLP Formfactor Inc [2017-02-09] 7.75
AllianceBernstein LP Formfactor Inc [2016-02-16] 5.6
Needham Investment Management LLC Formfactor Inc [2014-02-14] 5.3
Dimensional Fund Advisors LP Formfactor Inc [2014-02-10] 6.15
Vanguard Group Inc Formfactor Inc [2012-02-10] 5.39
Form 3/4/5 Filer 2011 - 2026
Formfactor Inc
St Dennis Thomas
Slessor Mike
Rhodes Sheri
McKinnis Aric Brendan
Obregon-Jimenez Rebeca
White Brian C
Titinger Jorge
Steven-Waiss Kelley
Brewer Kevin J
Shahar Shai
Maier Lothar
Link Raymond A
Rogas Edward Jr
Zellner Michael W
DeLateur Richard
Ludwig Michael M
Merkadeau Stuart L
Everett G Carl Jr
Insider Transaction (Form 3/4/5) Date Action Shares Price Value ($)
Slessor Mike
Common Stock
2026-03-18 Sell 5,495 $95.21 523,179
Slessor Mike
Common Stock
2026-03-18 Sell 1,900 $94.10 178,790
Slessor Mike
Common Stock
2026-03-18 Sell 2,832 $95.73 271,107
McKinnis Aric Brendan
Common Stock
2026-03-05 Sell 3,462 $90.42 313,034
McKinnis Aric Brendan
Common Stock
2026-03-02 Option exercise 773 $0.00
McKinnis Aric Brendan
Common Stock
2026-03-02 Tax withheld 193 $99.70 19,242
McKinnis Aric Brendan
Restricted Stock Units · derivative
2026-03-02 Option exercise 773 $0.00
White Brian C
Common Stock
2026-02-24 Sell 2,300 $100.01 230,023
Slessor Mike
Common Stock
2026-02-18 Sell 834 $92.85 77,437
Slessor Mike
Common Stock
2026-02-18 Sell 2,896 $94.79 274,512
Slessor Mike
Common Stock
2026-02-18 Sell 4,934 $93.97 463,648
Brewer Kevin J
Common Stock
2026-02-11 Sell 3,000 $96.20 288,600
Rhodes Sheri
Common Stock
2026-02-10 Sell 7,634 $92.61 706,985
St Dennis Thomas
Common Stock
2026-02-10 Sell 5,601 $93.71 524,870
Steven-Waiss Kelley
Common Stock
2026-02-10 Sell 2,200 $93.70 206,140
St Dennis Thomas
Common Stock
2026-02-10 Sell 1,830 $94.24 172,459
Slessor Mike
Common Stock
2026-02-09 Tax withheld 3,288 $94.88 311,965
Slessor Mike
Restricted Stock Units · derivative
2026-02-09 Option exercise 5,908 $0.00
Titinger Jorge
Common Stock
2026-02-09 Sell 2,000 $88.84 177,680
Slessor Mike
Common Stock
2026-02-09 Option exercise 5,908 $0.00
showing 20 of 200 most recent transactions
13F Ownership Over TimeHoldersShares Held
2026-03-31 397 71,912,684
2025-12-31 337 74,497,334
2025-09-30 281 73,597,868
2025-06-30 302 75,630,812
2025-03-31 282 75,084,302
2024-12-31 301 75,422,106
2024-09-30 321 73,266,081
2024-06-30 312 73,796,763
2024-03-31 266 76,908,604
2023-12-31 246 77,235,725
2023-09-30 229 73,952,009
2023-06-30 233 72,989,657
Form 13F Holdings
Firm Period DFND Voting Shares
Reinhart Partners LLC [2026-06-30] SOLE 587,444 639,922
Assenagon Asset Management SA [2026-06-30] SOLE 259,518 259,518
Peregrine Capital Management LLC [2026-06-30] SOLE 35,182 94,420
Louisiana State Employees Retirement System [2026-06-30] SOLE 34,400 34,400
Wealth Enhancement Advisory Services LLC [2026-06-30] SOLE 197 34,377
Yousif Capital Management LLC [2026-06-30] SOLE 5,056 21,008
Linden Thomas Advisory Services LLC [2026-06-30] SOLE 0 20,077
Commonwealth of Pennsylvania Public School Empls Retrmt SYS [2026-06-30] SOLE 18,486 18,486
NorthCrest Asset Manangement LLC [2026-06-30] SOLE 15 18,353
Mirador Capital Partners LP [2026-06-30] SOLE 17,944 17,944
Burney CO/ [2026-06-30] SOLE 0 17,780
Capstone Capital Management Ltd [2026-06-30] SOLE 13,243 13,243
Y-Intercept Hong Kong Ltd [2026-06-30] SOLE 12,202 12,202
Independent Financial Group LLC [2026-06-30] SOLE 0 9,792
Gamma Investing LLC [2026-06-30] DFND 5,910 5,910
Crossmark Global Holdings Inc [2026-06-30] SOLE 4,335 4,335
MRA Advisory Group [2026-06-30] SOLE 0 4,116
Merit Financial Group LLC [2026-06-30] OTR 0 2,920
Alaska Retirement Management Board [2026-06-30] SOLE 28,471 2,824
Sequoia Financial Advisors LLC [2026-06-30] SOLE 0 2,808
Fifth Third Wealth Advisors LLC [2026-06-30] SOLE 2,760 2,760
Triangle Securities Wealth Management [2026-06-30] SOLE 0 2,041
Ballentine Partners LLC [2026-06-30] OTR 0 1,688
Folger Nolan Fleming Douglas Capital Management Inc [2026-06-30] SOLE 0 1,500
FLC Capital Advisors [2026-06-30] SOLE 0 1,430
Versant Capital Management Inc [2026-06-30] SOLE 1,424 1,424
Everhart Financial Group Inc [2026-06-30] SOLE 0 1,292
MassMutual Private Wealth & Trust FSB [2026-06-30] SOLE 645 645
Farther Finance Advisors LLC [2026-06-30] SOLE 0 574
Trust Co of Toledo NA /OH/ [2026-06-30] SOLE 424 424
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