Follow The Filings

Insider trades

Stock that executives, directors and 10% owners bought and sold on the open market, from the Form 4s they file with the SEC within two business days. Grants, option exercises and shares sold to cover taxes are left out.

4,838 companies covered, latest filing Oct 23.

  • $1.5B bought by 340 insiders at 207 companies
  • $3.2B sold by 266 insiders outside a trading plan
  • $7.9B sold by 827 insiders under 10b5-1 plans
  • 10 companies where two or more insiders bought (30 days)

Biggest buys

Past month, each insider's filings added up.

  1. LENLennar
    Berkshire Hathaway Inc.10% owner, +1 joint filer
    4,758,747 shares at $80.46 Sep 23–Oct 2, 3 filings 3 superinvestors bought in Q2
    $383M
  2. CRBGCorebridge Financial
    Life Insurance Co Nippon10% owner
    6,596,299 shares at $34.18 Sep 21–Oct 20, 21 filings +5.3% to stake 2 superinvestors bought in Q2
    $225M
  3. KODKodiak Sciences
    Baker Bros. Advisors LPDirector, +5 joint filers
    1,941,755 shares at $80.85 Sep 28–29, 3 filings +11% to stake 1 superinvestor sold in Q2
    $157M
  4. SAFXXCF Global
    EEME Energy SPV I, LLC10% owner
    119M shares at $1.19 Oct 16 +109% to stake
    $142M
  5. GPIGroup 1 Automotive
    Conifer Management, L.L.C.10% owner
    400,000 shares at $244.51 Sep 24–30, 2 filings +26% to stake 2 superinvestors bought in Q2
    $97.8M
  6. UUUUniversal Safety Products
    Milton C Ault IIIDirector
    33,434 shares at $2,766.36 Sep 21–30, 2 filings
    $92.5M
  7. GMEGameStop
    Ryan CohenCEO
    1,994,130 shares at $25.29 Sep 29–Oct 13, 3 filings +4.9% to stake
    $50.4M
  8. BORRBorr Drilling
    Tor Olav TroimDirector
    9,500,000 shares at $4.53 Oct 5–15, 7 filings +31% to stake
    $43M
  9. PAMPampa Energia
    Marcos Marcelo MindlinDirector
    435,000 shares at $80.78 Oct 15 +6.4% to stake
    $35.1M
  10. GGRGogoro
    Chung-Yao YinDirector
    14.2M shares at $2.48 Oct 7 New stake
    $35.1M

Biggest sales

Past month, each insider's filings added up. Planned sales are marked.

  1. IHTInnSuites Hospitality Trust
    James F WirthCEO
    86,222 shares at $48,532.59 Oct 7–20, 2 filings 1.1% of stake Planned sale (10b5-1)
    $4.2B
  2. MDLNMedline
    GIC Private Ltd10% owner, +2 joint filers
    28.5M shares at $34.97 Oct 2–8, 2 filings
    $996M
  3. ESTCElastic
    Steven SchuurmanDirector
    3,500,000 shares at $92.43 Oct 5–12, 2 filings 58% of stake
    $323M
  4. TALOTalos Energy
    Empresarial De Capitales S.a. De C.v. Control10% owner
    14.6M shares at $17.33 Oct 6–19, 5 filings 37% of stake
    $253M
  5. AVGOBroadcom
    Henry SamueliDirector
    702,190 shares at $356.04 Sep 23 1.9% of stake Planned sale (10b5-1)
    $250M
  6. THTarget Hospitality
    TDR Capital II Investments LP10% owner, +9 joint filers
    11M shares at $18.40 Oct 1 40% of stake
    $202M
  7. ANETArista Networks
    Jayshree UllalCEO
    778,531 shares at $213.68 Sep 25–Oct 9, 4 filings 4.8% of stake Planned sale (10b5-1)
    $166M
  8. KNTKKinetik
    ISQ Global Fund II GP LLC10% owner, +4 joint filers
    2,448,272 shares at $54.63 Sep 22–Oct 13, 4 filings 100% of stake
    $134M
  9. CRWDCrowdStrike
    Burt W. PodbereCFO
    480,000 shares at $261.44 Sep 24 Planned sale (10b5-1)
    $125M
  10. NBISNebius Group
    Ophir NaveCOO
    500,000 shares at $235.53 Oct 5 52% of stake Planned sale (10b5-1)
    $118M

Cluster buying

Companies where two or more insiders bought on the open market in the last 30 days, most buyers first

  1. TSMTaiwan Semiconductor 19 insiders, $80K

    Che-Chia Wei CEO, Yuh-Jier Mii COO, Yung-Pei Chin COO, Yung-Chin Hou COO, +15 more

    Latest buy Oct 7 19 executives 20 superinvestors sold in Q2
  2. SPGSimon Property Group 11 insiders, $461K

    Reuben S Leibowitz Director, Larry C Glasscock Director, Daniel C. Smith Director, Gary M Rodkin Director, +7 more

    Latest buy Sep 30
  3. FULH. B. Fuller 9 insiders, $1.1M

    R Jeffrey Bailly Director, Daniel L Florness Director, Srilata Zaheer Director, Charles T Lauber Director, +5 more

    Latest buy Oct 16 1 executive 1 superinvestor bought in Q2
  4. RAPPRapport Therapeutics 5 insiders, $1.6M

    Steven M Paul Director, John Maraganore Director, Troy A. Ignelzi CFO, Wendy B. Young Director, +1 more

    Latest buy Oct 22 1 executive
  5. ATCHAtlasClear 5 insiders, $163K

    Thomas Jon Hammond Director, Sandip I Patel CFO, John Martin Schaible Chair, David Craig Ridenhour President, +1 more

    Latest buy Sep 25 3 executives
  6. RGCORGC Resources 5 insiders, $85K

    John B Williamson III Director, Robert B Johnston Director, Paul W Nester CEO, Lawrence T. Oliver Senior VP and Secretary, +1 more

    Latest buy Oct 1 3 executives
  7. WVVIWillamette Valley Vineyards 5 insiders, $75K

    Michael Jordan Osborn CEO, John Walter Hazlett CFO, Gregory William Voorhies Director, James W Bernau President, +1 more

    Latest buy Oct 12 3 executives
  8. MPBMid Penn Bancorp 5 insiders, $25K

    Matthew G De Soto Director, Albert J. Evans Director, Kimberly J Brumbaugh Director, Theodore W Mowery Director, +1 more

    Latest buy Sep 30
  9. DXDynex Capital 4 insiders, $245K

    Smriti Laxman Popenoe CEO, Byron L Boston CEO, Terrence John Connelly Jr. Chief Investment Officer, Michael Andrew Sartori CFO

    Latest buy Oct 20 4 executives
  10. ANIXAnixa Biosciences 4 insiders, $203K

    Lewis H Titterton Jr. Director, Amit Kumar CEO, Michael Catelani CFO, Arnold M Baskies Director

    Latest buy Oct 22 2 executives

WDC insider trades

Every open-market buy and sale in WDC, one row per filing, newest first

WDC page
All Buys Sales
Everyone CEOs CFOs Executives Directors 10% owners
Any size $100K+ $1M+ $10M+
Hide planned sales
  1. Cynthia L Tregillis Chief Legal Officer & Corp Sec
    WDCWestern Digital
    Planned sale
    $307K 807 shares at $380.00 0.7% of stake
    Traded Oct 21 Filed Oct 22
    ↗
  2. Cynthia L Tregillis Chief Legal Officer & Corp Sec
    WDCWestern Digital
    Planned sale
    $195K 432 shares at $451.20 0.4% of stake
    Traded Sep 4 Filed Sep 8
    ↗
  3. Vidyadhara K Gubbi Chief of Global Operations
    WDCWestern Digital
    Sale
    $825K 1,795 shares at $459.87 2.2% of stake
    Traded Sep 4 Filed Sep 8
    ↗
  4. Stephanie A Streeter Director
    WDCWestern Digital
    Sale
    $2.5M 5,600 shares at $449.87 14% of stake
    Traded Aug 31–Sep 1 Filed Sep 2
    ↗
  5. Cynthia L Tregillis Chief Legal Officer & Corp Sec
    WDCWestern Digital
    Planned sale
    $696K 1,483 shares at $469.51 1.3% of stake
    Traded Aug 26–27 Filed Aug 27
    ↗
  6. Cynthia L Tregillis Chief Legal Officer & Corp Sec
    WDCWestern Digital
    Planned sale
    $417K 919 shares at $454.12 0.8% of stake
    Traded Aug 21–24 Filed Aug 24
    ↗
  7. Irving Tan CEO
    WDCWestern Digital
    Planned sale
    $8.9M 20,000 shares at $444.97 3.4% of stake
    Traded Aug 11 Filed Aug 12
    ↗
  8. Martin I Cole Director
    WDCWestern Digital
    Planned sale
    $89K 192 shares at $462.77 0.9% of stake
    Traded Jul 28 Filed Jul 29
    ↗
  9. Martin I Cole Director
    WDCWestern Digital
    Planned sale
    $1.7M 3,808 shares at $448.66 15% of stake
    Traded Jul 28 Filed Jul 29
    ↗
  10. Cynthia L Tregillis Chief Legal Officer & Corp Sec
    WDCWestern Digital
    Planned sale
    $428K 808 shares at $529.63 0.7% of stake
    Traded Jul 21 Filed Jul 21
    ↗
  11. Martin I Cole Director
    WDCWestern Digital
    Planned sale
    $386K 720 shares at $536.01 2.8% of stake
    Traded Jun 9 Filed Jun 11
    ↗
  12. Martin I Cole Director
    WDCWestern Digital
    Planned sale
    $1.7M 3,280 shares at $511.16 11% of stake
    Traded Jun 9 Filed Jun 11
    ↗
  13. Cynthia L Tregillis Chief Legal Officer & Corp Sec
    WDCWestern Digital
    Planned sale
    $236K 432 shares at $545.60 0.4% of stake
    Traded Jun 5 Filed Jun 5
    ↗
  14. Vidyadhara K Gubbi Chief of Global Operations
    WDCWestern Digital
    Sale
    $1.4M 2,475 shares at $556.24 2.8% of stake
    Traded Jun 1 Filed Jun 2
    ↗
  15. Bruce E Kiddoo Director
    WDCWestern Digital
    Sale
    $396K 750 shares at $528.52 16% of stake
    Traded May 28 Filed May 29
    ↗
  16. Cynthia L Tregillis Chief Legal Officer & Corp Sec
    WDCWestern Digital
    Planned sale
    $266K 522 shares at $509.53 0.4% of stake
    Traded May 22–27 Filed May 27
    ↗
  17. Cynthia L Tregillis Chief Legal Officer & Corp Sec
    WDCWestern Digital
    Planned sale
    $49K 106 shares at $458.87 0.1% of stake
    Traded May 21 Filed May 22
    ↗
  18. Brian Scott Davis Chief Sales & Mrktng Officer
    WDCWestern Digital
    Planned sale
    $5M 10,000 shares at $500.69 8.7% of stake
    Traded May 11 Filed May 12
    ↗
  19. Vidyadhara K Gubbi Chief of Global Operations
    WDCWestern Digital
    Sale
    $2.1M 4,674 shares at $443.19 4.9% of stake
    Traded May 4 Filed May 5
    ↗
  20. Irving Tan CEO
    WDCWestern Digital
    Planned sale
    $8.2M 20,000 shares at $411.84 3.2% of stake
    Traded May 1 Filed May 5
    ↗
  21. Cynthia L Tregillis Chief Legal Officer & Corp Sec
    WDCWestern Digital
    Planned sale
    $137K 363 shares at $377.09 0.3% of stake
    Traded Apr 21 Filed Apr 22
    ↗
  22. Vidyadhara K Gubbi Chief of Global Operations
    WDCWestern Digital
    Sale
    $2.2M 8,518 shares at $255.33 7.9% of stake
    Traded Mar 6 Filed Mar 10
    ↗
  23. Cynthia L Tregillis Chief Legal Officer & Corp Sec
    WDCWestern Digital
    Planned sale
    $2.5M 9,324 shares at $268.27 7.1% of stake
    Traded Mar 4 Filed Mar 5
    ↗
  24. Vidyadhara K Gubbi Chief of Global Operations
    WDCWestern Digital
    Sale
    $2.7M 10,148 shares at $270.31 8.6% of stake
    Traded Mar 4 Filed Mar 5
    ↗
  25. Martin I Cole Director
    WDCWestern Digital
    Planned sale
    $1.6M 6,000 shares at $271.67 17% of stake
    Traded Mar 2 Filed Mar 3
    ↗
  26. Cynthia L Tregillis Chief Legal Officer & Corp Sec
    WDCWestern Digital
    Planned sale
    $61K 214 shares at $286.11 0.2% of stake
    Traded Feb 26 Filed Feb 27
    ↗
  27. Cynthia L Tregillis Chief Legal Officer & Corp Sec
    WDCWestern Digital
    Planned sale
    $124K 438 shares at $282.33 0.3% of stake
    Traded Feb 23–24 Filed Feb 24
    ↗
  28. Brian Scott Davis Chief Sales & Mrktng Officer
    WDCWestern Digital
    Planned sale
    $2.8M 10,000 shares at $279.16 7.6% of stake
    Traded Feb 17 Filed Feb 19
    ↗
  29. Cynthia L Tregillis Chief Legal Officer & Corp Sec
    WDCWestern Digital
    Sale
    $1.8M 6,780 shares at $270.49 4.7% of stake
    Traded Feb 6 Filed Feb 6
    ↗
  30. Matthew E Massengill Director
    WDCWestern Digital
    Planned sale
    $9.6M 36,926 shares at $260.43 100% of stake
    Traded Feb 5 Filed Feb 6
    ↗
  31. Irving Tan CEO
    WDCWestern Digital
    Planned sale
    $5.1M 20,000 shares at $255.44 3.1% of stake
    Traded Feb 2 Filed Feb 4
    ↗
  32. Cynthia L Tregillis Chief Legal Officer & Corp Sec
    WDCWestern Digital
    Planned sale
    $102K 447 shares at $229.00 0.3% of stake
    Traded Jan 21 Filed Jan 21
    ↗
  33. Vidyadhara K Gubbi Chief of Global Operations
    WDCWestern Digital
    Sale
    $3.7M 22,820 shares at $163.16 15% of stake
    Traded Dec 4–5 Filed Dec 8, 2025
    ↗
  34. Kimberly Alexy Director
    WDCWestern Digital
    Sale
    $320K 2,000 shares at $160.08 56% of stake
    Traded Dec 4, 2025 Filed Dec 8, 2025
    ↗
  35. Cynthia L Tregillis Chief Legal Officer & Corp Sec
    WDCWestern Digital
    Sale
    $450K 2,801 shares at $160.57 1.9% of stake
    Traded Dec 2, 2025 Filed Dec 3, 2025
    ↗
  36. Martin I Cole Director
    WDCWestern Digital
    Planned sale
    $976K 6,000 shares at $162.62 15% of stake
    Traded Dec 1, 2025 Filed Dec 3, 2025
    ↗
  37. Roxanne Oulman Director
    WDCWestern Digital
    Sale
    $278K 1,800 shares at $154.42 32% of stake
    Traded Nov 25, 2025 Filed Nov 26, 2025
    ↗
  38. Kimberly Alexy Director
    WDCWestern Digital
    Sale
    $272K 1,768 shares at $154.00 33% of stake
    Traded Nov 25, 2025 Filed Nov 26, 2025
    ↗
  39. Martin I Cole Director
    WDCWestern Digital
    Planned sale
    $1.6M 10,000 shares at $161.32 20% of stake
    Traded Nov 5, 2025 Filed Nov 6, 2025
    ↗
  40. Irving Tan CEO
    WDCWestern Digital
    Planned sale
    $3M 20,000 shares at $150.69 3% of stake
    Traded Nov 3, 2025 Filed Nov 5, 2025
    ↗

About this data

  • Officers, directors and anyone owning more than 10% of a company must report a trade in its stock on a Form 4 within two business days. We read each filing from SEC EDGAR and link to it on every row.
  • Only open-market purchases and sales of common stock count here. Stock grants, option exercises, gifts and shares withheld or sold to pay taxes on vesting awards are not decisions to buy or sell, so they are left out.
  • A planned sale was made under a Rule 10b5-1 trading plan, which the insider set up months in advance. Many executives sell this way on a schedule, so a planned sale says less than one made on the day.
  • Values are shares times the price reported. When a filing amends an earlier one, the amended trades replace the originals. Related owners (a fund and its manager) who report the same trade separately are shown once.
  • We cover the 4,838 US companies on our earnings calendar, with a year of history. The superinvestor notes count the featured 13F managers who added or cut the stock in their latest quarter.