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Data sources

Public disclosures only. Scores flag unusual patterns and are not evidence of wrongdoing. Not investment advice.

RH CHAIN…
OverviewFollow the MoneyDaily BriefLiveCongressCorporate InsidersGovernment MoneyPolitical InfluenceInstitutionsWashington NetworkFollow the PowerDisclosure ClockAI InvestigatorWatchlistConvergenceINSIDER AlphaSignal ledgerHistorical ReplayRobinhood ChainProofTradingTokenProAccountMethodologyMatch reviewLaunch readiness
01Overview02Follow the Money03Daily Brief04Live05Congress06Corporate Insiders07Government Money08Political Influence09Institutions10Washington Network11Follow the Power12Disclosure Clock13AI Investigator14Watchlist
ConvergenceINSIDER AlphaSignal ledgerHistorical ReplayRobinhood ChainProofTradingTokenProAccountMethodologyMatch reviewLaunch readiness
OverviewFollow the MoneyDaily BriefLiveCongressCorporate InsidersGovernment MoneyPolitical InfluenceInstitutionsWashington NetworkFollow the PowerDisclosure ClockAI InvestigatorWatchlistConvergenceINSIDER AlphaSignal ledgerHistorical ReplayRobinhood ChainProofTradingTokenProAccountMethodologyMatch reviewLaunch readiness
Data sources
SEC FORM 428m ago
HOUSE PTR28m ago
SEC 13F28m ago
ROBINHOOD CHAIN27m ago
SEC FORM 4/Open-market saleVerified dataRule 10b5-1 plan

Slessor Mike sold FORM

Director, CEO · FORMFACTOR INC · Common Stock

Side
SELL
Value
$151K
Shares
1,200
Price
$125.92
Executed
Oct 14, 2026
Disclosed
Oct 14, 2026
Disclosure timeline0 days from execution to publication · legal deadline 2 business days
Oct 14 executedOct 14, 2026 disclosed

FORM · daily

Yahoo Finance chart API
▲Execution▼Disclosure●Material company filing●Other disclosed buy●Other disclosed sellUnofficial public endpoint; daily OHLCV, split-adjusted. Replace with a licensed feed for production.

Insider Score

Experimental signal
1/ 100 · ROUTINE
Methodology →
  • Transaction type+6 / 20

    Open-market sale

  • Relative size+4 / 25

    $151K reported value · 0.3% of prior position

  • Filing timing0 / 15

    Disclosed 0 business days after execution (deadline: 2)

  • Historical behavior+1 / 15

    Routine: 7 prior trades recorded in this security

  • Frequency & clustering0 / 15

    No clustered activity in the dataset

  • Market events0 / 10

    No material company filing within 60 days after the trade

  • Pre-arranged plan-10

    Executed under a Rule 10b5-1 trading plan

    • The Insider Score measures how far a disclosure deviates from normal filing patterns. A high score is a prompt for research, not evidence of illegal insider trading.

    Other disclosed activity · FORM

    ScoreActorSecuritySideValueExecutedDisclosedLagSourceEvidence
    4
    SM
    Slessor MikeDirector, CEO
    FORMFORMFACTOR INC
    Open-market sale · 10b5-1 plan
    		SELL$966K
    7,703 sh
    		Oct 14, 2026Oct 14, 2026
    traded Oct 14, 2026
    		+0dSEC FORM 4

    Evidence

    4
    SM
    Slessor MikeDirector, CEO
    FORMFORMFACTOR INC
    Open-market sale · 10b5-1 plan
    		SELL$273K
    2,195 sh
    		Oct 14, 2026Oct 14, 2026
    traded Oct 14, 2026
    		+0dSEC FORM 4

    Evidence

    2
    SM
    Slessor MikeDirector, CEO
    FORMFORMFACTOR INC
    Option exercise
    		M—
    5,908 sh
    		Aug 7, 2026Aug 10, 2026
    traded Aug 7, 2026
    		+3dSEC FORM 4

    Evidence

    2
    SM
    Slessor MikeDirector, CEO
    FORMFORMFACTOR INC
    Grant or award
    		A—
    27.7K sh
    		Aug 6, 2026Aug 10, 2026
    traded Aug 6, 2026
    		+4dSEC FORM 4

    Evidence

    15
    SM
    Slessor MikeDirector, CEO
    FORMFORMFACTOR INC
    Tax withholding
    		F$9.26M
    78.9K sh
    		Aug 7, 2026Aug 10, 2026
    traded Aug 7, 2026
    		+3dSEC FORM 4

    Evidence

    9
    MB
    McKinnis Aric BrendanCFO, SVP Global Finance
    FORMFORMFACTOR INC
    Grant or award
    		A—
    6,924 sh
    		Aug 6, 2026Aug 10, 2026
    traded Aug 6, 2026
    		+4dSEC FORM 4

    Evidence

    2
    SM
    Slessor MikeDirector, CEO
    FORMFORMFACTOR INC
    Option exercise
    		M—
    141.8K sh
    		Aug 7, 2026Aug 10, 2026
    traded Aug 7, 2026
    		+3dSEC FORM 4

    Evidence

    2
    SM
    Slessor MikeDirector, CEO
    FORMFORMFACTOR INC
    Grant or award
    		A—
    141.8K sh
    		Aug 7, 2026Aug 10, 2026
    traded Aug 7, 2026
    		+3dSEC FORM 4

    Evidence

    10
    SM
    Slessor MikeDirector, CEO
    FORMFORMFACTOR INC
    Option exercise
    		M—
    141.8K sh
    		Aug 7, 2026Aug 10, 2026
    traded Aug 7, 2026
    		+3dSEC FORM 4

    Evidence

    8
    SM
    Slessor MikeDirector, CEO
    FORMFORMFACTOR INC
    Tax withholding
    		F$386K
    3,288 sh
    		Aug 7, 2026Aug 10, 2026
    traded Aug 7, 2026
    		+3dSEC FORM 4

    Evidence

    2
    SM
    Slessor MikeDirector, CEO
    FORMFORMFACTOR INC
    Option exercise
    		M—
    5,908 sh
    		Aug 7, 2026Aug 10, 2026
    traded Aug 7, 2026
    		+3dSEC FORM 4

    Evidence

    4
    SM
    Slessor MikeDirector, CEO
    FORMFORMFACTOR INC
    Open-market sale · 10b5-1 plan
    		SELL$229K
    1,826 sh
    		Apr 15, 2026Apr 15, 2026
    traded Apr 15, 2026
    		+0dSEC FORM 4

    Evidence

    4
    SM
    Slessor MikeDirector, CEO
    FORMFORMFACTOR INC
    Open-market sale · 10b5-1 plan
    		SELL$114K
    900 sh
    		Apr 15, 2026Apr 15, 2026
    traded Apr 15, 2026
    		+0dSEC FORM 4

    Evidence

    7
    SM
    Slessor MikeDirector, CEO
    FORMFORMFACTOR INC
    Open-market sale · 10b5-1 plan
    		SELL$302K
    2,369 sh
    		Apr 15, 2026Apr 15, 2026
    traded Apr 15, 2026
    		+0dSEC FORM 4

    Evidence

    7
    SM
    Slessor MikeDirector, CEO
    FORMFORMFACTOR INC
    Open-market sale · 10b5-1 plan
    		SELL$698K
    5,432 sh
    		Apr 15, 2026Apr 15, 2026
    traded Apr 15, 2026
    		+0dSEC FORM 4

    Evidence

    4
    SM
    Slessor MikeDirector, CEO
    FORMFORMFACTOR INC
    Open-market sale · 10b5-1 plan
    		SELL$99K
    767 sh
    		Apr 15, 2026Apr 15, 2026
    traded Apr 15, 2026
    		+0dSEC FORM 4

    Evidence

    11
    SM
    Slessor MikeDirector, CEO
    FORMFORMFACTOR INC
    Open-market sale · 10b5-1 plan
    		SELL$472K
    6,112 sh
    		Jan 15, 2026Jan 15, 2026
    traded Jan 15, 2026
    		+0dSEC FORM 4

    Evidence

    11
    SM
    Slessor MikeDirector, CEO
    FORMFORMFACTOR INC
    Open-market sale · 10b5-1 plan
    		SELL$533K
    6,976 sh
    		Jan 15, 2026Jan 15, 2026
    traded Jan 15, 2026
    		+0dSEC FORM 4

    Evidence

    12
    SM
    Slessor MikeDirector, CEO
    FORMFORMFACTOR INC
    Tax withholding
    		F$182K
    3,351 sh
    		Nov 6, 2025Nov 7, 2025
    traded Nov 6, 2025
    		+1dSEC FORM 4

    Evidence

    9
    SM
    Slessor MikeDirector, CEO
    FORMFORMFACTOR INC
    Option exercise
    		M—
    6,031 sh
    		Nov 6, 2025Nov 7, 2025
    traded Nov 6, 2025
    		+1dSEC FORM 4

    Evidence

    Evidence

    Verified data

    Read directly from the primary public document; every field below is as reported by the filer.

    Source

    Document
    SEC Form 4
    Publisher
    U.S. Securities and Exchange Commission (EDGAR)
    Document ID
    0001628280-26-065922
    Machine-readable
    Structured copy

    Timestamps

    Event (reported)
    Oct 14, 2026
    Published
    Oct 14, 2026
    Ingested by INSIDER
    Nov 5, 02:11 UTC
    Last re-read
    Nov 5, 02:11 UTC

    Extracted facts

    Filer
    Slessor Mike
    Role
    Director, CEO
    Transaction
    Open-market saleAs filed: “S”
    Asset
    FORMFACTOR INC
    Ticker
    FORM
    Shares
    1,200
    Price per share
    $125.92
    Value
    $151,104
    Execution date (reported)
    Oct 14, 2026
    Owned after transaction
    455.6K shares
    Rule 10b5-1 plan
    Yes, as checked by the filer
    Days from execution to publication
    0

    Calculation

    Value = shares × reported price per share

    • Shares: 1,200
    • Price: $125.92

    = $151,104

    What this establishes

    Slessor Mike filed this Form 4 reporting a open-market sale of FORM on Oct 14, 2026. It became public on Oct 14, 2026. The filing establishes the reported transaction and the filer's stated role. It does not establish why the trade was made or what the filer knew.

    Extraction

    Method
    Form 4 XML
    Confidence
    1.00
    Director, CEO
    Slessor Mikecik:0001590177
    Issuer
    FORMFACTOR INCcik:0001039399

    Revision history · 0

    No field has changed since this record was first ingested.

    Company events

    No records

    No material filings recorded for this issuer.