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FORM
Ticker

FormFactor, Inc.

FORM · Technology · FormFactor, Inc. designs, manufactures, and sells probe cards, analytical probes, probe stations, thermal systems, cryogenic systems, and r…

FormFactor, Inc. (FORM), in the Technology sector, has 30 disclosed filings on Paydirt over the trailing twelve months from 9 corporate insiders: 0 purchases and 30 sales. Filers took a median of 1 day from execution to disclosure, and the most recent trade was executed Sep 16 and filed Sep 17. The most active filer was Mike Slessor with 22 filings.

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Filings, ttm
30
0 buys · 30 sells
Traders, ttm
9
9 insiders
Volume, ttmiDollar value disclosed in the window
$20.9M
estimated for Congress, as filed for insiders
Median delay
1d
execution to disclosure
Last traded
Sep 16
Filed Sep 17
ADViAverage daily dollar volume
$204.8M
market data
Share price · 12M
$104 (+175.6%)
$160$97.60$35.28Sep 22 2025Mar 16Sep 4

Adjusted for splits and dividends.

Volume by month
$3.8M$1.9M$0Oct 2024Apr 2025Oct 2025Apr 2026Oct 2024 · sells $135KNov 2024 · sells $276KDec 2024 · sells $158KJan 2025 · sells $160KFeb 2025 · sells $152KMar 2025 · sells $252KApr 2025 · sells $113KMay 2025 · sells $127KJun 2025 · sells $119KJul 2025 · sells $136KAug 2025 · sells $118KSep 2025 · sells $110KNov 2025 · sells $421KDec 2025 · sells $583KJan 2026 · sells $3.6MFeb 2026 · sells $3.8MMar 2026 · sells $1.3MApr 2026 · sells $1.3MMay 2026 · sells $2.9MJun 2026 · sells $2.5MJul 2026 · sells $420KAug 2026 · sells $2.0MSep 2026 · sells $2.0M
Buys $0 Sells $22.8M

Estimated for Congress, as filed for insiders · by filing month · past 24 months

Who filed
MS Mike Slessor CEO 22 filings KW Kelley Steven-waiss Director 6 filings TD Thomas St Dennis Director 4 filings RJ Rebeca Obregon-Jimenez Director 3 filings BW Brian C White Director 3 filings SR Sheri Rhodes Director 2 filings JT Jorge Titinger Director 2 filings KB Kevin J Brewer Director 1 filing
Recent filings
Mike SlessorSALE CEO $1.8M
17,510 sh across 3 lots
Exec Sep 16
Filed Sep 17 · 7:30 PM ET
Kelley Steven-waissSALE Director $202K
2,100 sh × $96.10
Exec Sep 3
Filed Sep 4 · 4:51 PM ET
Mike SlessorSALE CEO $2.0M
15,316 sh across 5 lots
Exec Aug 14
Filed Aug 17 · 6:16 PM ET
Mike SlessorSALE CEO $420K
3,559 sh across 3 lots
Exec Jul 15
Filed Jul 16 · 5:30 PM ET
Thomas St DennisSALE Director $424K
2,800 sh × $151.49
Exec Jun 15
Filed Jun 16 · 5:30 PM ET
Mike SlessorSALE CEO $1.3M
10,723 sh across 5 lots
Exec Jun 10
Filed Jun 11 · 5:30 PM ET
Sheri RhodesSALE Director $794K
6,328 sh × $125.40
Exec Jun 2
Filed Jun 4 · 5:30 PM ET
Rebeca Obregon-JimenezSALE Director $484K
3,828 sh × $126.48
Exec May 21
Filed May 22 · 5:30 PM ET
Thomas St DennisSALE Director $116K
1,000 sh × $115.84
Exec May 19
Filed May 21 · 5:30 PM ET
Brian C WhiteSALE Director $410K
3,250 sh × $126.00
Exec May 20
Filed May 21 · 5:30 PM ET
Kelley Steven-waissSALE Director $678K
5,400 sh × $125.60
Exec May 15
Filed May 15 · 5:30 PM ET
Jorge TitingerSALE Director $516K
4,009 sh × $128.79
Exec May 13
Filed May 15 · 5:30 PM ET
Mike SlessorSALE CEO $707K
5,672 sh across 3 lots
Exec May 13
Filed May 14 · 5:30 PM ET
Mike SlessorSALE CEO $1.3M
10,527 sh across 4 lots
Exec Apr 15
Filed Apr 15 · 5:30 PM ET
Mike SlessorSALE CEO $973K
10,227 sh across 3 lots
Exec Mar 18
Filed Mar 18 · 5:30 PM ET
Aric Brendan McKinnisSALE CFO, SVP Global Finance $313K
3,462 sh × $90.42
Exec Mar 5
Filed Mar 6 · 5:30 PM ET
Brian C WhiteSALE Director $230K
2,300 sh × $100.01
Exec Feb 24
Filed Feb 25 · 5:30 PM ET
Mike SlessorSALE CEO $738K
7,830 sh across 2 lots
Exec Feb 18
Filed Feb 18 · 5:30 PM ET
Kevin J BrewerSALE Director $289K
3,000 sh × $96.20
Exec Feb 11
Filed Feb 12 · 5:30 PM ET
Kelley Steven-waissSALE Director $206K
2,200 sh × $93.70
Exec Feb 10
Filed Feb 11 · 5:30 PM ET
Sheri RhodesSALE Director $707K
7,634 sh × $92.61
Exec Feb 10
Filed Feb 11 · 5:30 PM ET
Thomas St DennisSALE Director $697K
7,431 sh across 2 lots
Exec Feb 10
Filed Feb 11 · 5:30 PM ET
Jorge TitingerSALE Director $178K
2,000 sh × $88.84
Exec Feb 9
Filed Feb 10 · 5:30 PM ET
Brian C WhiteSALE Director $500K
5,500 sh × $90.95
Exec Feb 9
Filed Feb 10 · 5:30 PM ET
Rebeca Obregon-JimenezSALE Director $265K
2,770 sh × $95.82
Exec Feb 9
Filed Feb 10 · 5:30 PM ET