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.

4,841 companies covered, latest filing Oct 23.

  • $1.5B bought by 336 insiders at 201 companies
  • $3.2B sold by 256 insiders outside a trading plan
  • $7.7B sold by 808 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
    6,600,653 shares at $34.19 Sep 22–Oct 21, 21 filings +5.3% to stake 2 superinvestors bought in Q2
    $226M
  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 6 insiders, $1.7M

    Steven M Paul Director, John Maraganore Director, Troy A. Ignelzi CFO, Wendy B. Young Director, +2 more

    Latest buy Oct 23 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, Joel L. Frank 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

GRND insider trades

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

GRND page
All Buys Sales
Everyone CEOs CFOs Executives Directors 10% owners
Any size $100K+ $1M+ $10M+
Hide planned sales
  1. George Raymond Zage III Director
    GRNDGrindr
    Planned sale
    $7.1M 500,000 shares at $14.12 7% of stake
    Traded Oct 16–19 Filed Oct 20
    ↗
  2. Zachary Katz CLO and Head of Global Affairs
    GRNDGrindr
    Planned sale
    $232K 15,227 shares at $15.23 2.4% of stake
    Traded Oct 14 Filed Oct 16
    ↗
  3. George Raymond Zage III Director
    GRNDGrindr
    Planned sale
    $6.9M 500,000 shares at $13.87 6.6% of stake
    Traded Oct 1–2 Filed Oct 5
    ↗
  4. George Raymond Zage III Director
    GRNDGrindr
    Planned sale
    $7.8M 500,000 shares at $15.55 6.2% of stake
    Traded Sep 16–17 Filed Sep 18
    ↗
  5. Zachary Katz CLO and Head of Global Affairs
    GRNDGrindr
    Planned sale
    $237K 15,227 shares at $15.57 2.3% of stake
    Traded Sep 14 Filed Sep 15
    ↗
  6. Austin J Balance Chief Product Officer
    GRNDGrindr
    Planned sale
    $1.4M 89,638 shares at $15.46 9.5% of stake
    Traded Aug 31 Filed Sep 2
    ↗
  7. Daniel Brooks Baer Director
    GRNDGrindr
    Planned sale
    $55K 3,500 shares at $15.65 6.8% of stake
    Traded Aug 19 Filed Aug 21
    ↗
  8. Zachary Katz CLO and Head of Global Affairs
    GRNDGrindr
    Planned sale
    $161K 10,172 shares at $15.83 1.5% of stake
    Traded Aug 17 Filed Aug 19
    ↗
  9. Zachary Katz CLO and Head of Global Affairs
    GRNDGrindr
    Planned sale
    $232K 12,979 shares at $17.89 1.8% of stake
    Traded Aug 3 Filed Aug 5
    ↗
  10. Zachary Katz CLO and Head of Global Affairs
    GRNDGrindr
    Planned sale
    $162K 10,172 shares at $15.95 1.4% of stake
    Traded Jul 16 Filed Jul 20
    ↗
  11. Zachary Katz CLO and Head of Global Affairs
    GRNDGrindr
    Planned sale
    $208K 12,800 shares at $16.28 1.8% of stake
    Traded Jul 1 Filed Jul 2
    ↗
  12. Zachary Katz CLO and Head of Global Affairs
    GRNDGrindr
    Planned sale
    $188K 12,799 shares at $14.65 1.7% of stake
    Traded Jun 29 Filed Jun 30
    ↗
  13. Zachary Katz CLO and Head of Global Affairs
    GRNDGrindr
    Planned sale
    $135K 10,172 shares at $13.29 1.4% of stake
    Traded Jun 17 Filed Jun 22
    ↗
  14. Nathan Richardson Director
    GRNDGrindr
    Planned sale
    $19K 1,500 shares at $12.59 18% of stake
    Traded Jun 1 Filed Jun 3
    ↗
  15. Austin J Balance Chief Product Officer
    GRNDGrindr
    Planned sale
    $474K 31,615 shares at $15.00 3.3% of stake
    Traded May 8 Filed May 12
    ↗
  16. Nathan Richardson Director
    GRNDGrindr
    Planned sale
    $20K 1,500 shares at $13.51 15% of stake
    Traded May 1 Filed May 5
    ↗
  17. Nathan Richardson Director
    GRNDGrindr
    Planned sale
    $18K 1,500 shares at $12.17 13% of stake
    Traded Apr 1 Filed Apr 3
    ↗
  18. Nathan Richardson Director
    GRNDGrindr
    Planned sale
    $17K 1,500 shares at $11.27 12% of stake
    Traded Mar 2 Filed Mar 4
    ↗
  19. James Fu Bin Lu 10% owner
    GRNDGrindr
    Sale
    $14.6M 1,450,000 shares at $10.07 7.3% of stake
    Traded Feb 4–6 Filed Feb 6
    ↗
  20. Nathan Richardson Director
    GRNDGrindr
    Planned sale
    $17K 1,500 shares at $11.18 11% of stake
    Traded Feb 2 Filed Feb 4
    ↗
  21. James Fu Bin Lu 10% owner
    GRNDGrindr
    Sale
    $6.8M 612,766 shares at $11.03 3% of stake
    Traded Jan 30–Feb 3 Filed Feb 3
    ↗
  22. James Fu Bin Lu 10% owner
    GRNDGrindr
    Sale
    $7.6M 639,000 shares at $11.88 3% of stake
    Traded Jan 23–27 Filed Jan 27
    ↗
  23. James Fu Bin Lu 10% owner
    GRNDGrindr
    Sale
    $7.2M 600,000 shares at $12.01 2.8% of stake
    Traded Jan 20–22 Filed Jan 22
    ↗
  24. James Fu Bin Lu 10% owner
    GRNDGrindr
    Sale
    $5.5M 415,307 shares at $13.22 99% of stake
    Traded Jan 9–12 Filed Jan 13
    ↗
  25. James Fu Bin Lu 10% owner
    GRNDGrindr
    Sale
    $1.2M 92,071 shares at $13.53 18% of stake
    Traded Jan 5 Filed Jan 7
    ↗
  26. Nathan Richardson Director
    GRNDGrindr
    Planned sale
    $20K 1,500 shares at $13.66 9.5% of stake
    Traded Jan 2 Filed Jan 6
    ↗
  27. James Fu Bin Lu 10% owner
    GRNDGrindr
    Sale
    $49K 3,628 shares at $13.50 0.7% of stake
    Traded Dec 29, 2025 Filed Dec 30, 2025
    ↗
  28. James Fu Bin Lu 10% owner
    GRNDGrindr
    Sale
    $2M 143,994 shares at $13.71 22% of stake
    Traded Dec 23–26 Filed Dec 29, 2025
    ↗
  29. Nathan Richardson Director
    GRNDGrindr
    Planned sale
    $19K 1,500 shares at $12.70 8.7% of stake
    Traded Dec 1, 2025 Filed Dec 2, 2025
    ↗
  30. Zachary Katz GC and Head of Global Affairs
    GRNDGrindr
    Planned sale
    $368K 29,383 shares at $12.52 6% of stake
    Traded Nov 25, 2025 Filed Nov 28, 2025
    ↗
  31. Nathan Richardson Director
    GRNDGrindr
    Planned sale
    $20K 1,500 shares at $13.55 8% of stake
    Traded Nov 18, 2025 Filed Nov 20, 2025
    ↗
  32. Nathan Richardson Director
    GRNDGrindr
    Planned sale
    $6,805 485 shares at $14.03 2.5% of stake
    Traded Nov 14, 2025 Filed Nov 18, 2025
    ↗
  33. James Fu Bin Lu 10% owner
    GRNDGrindr
    Sale
    $1M 75,748 shares at $13.65 0.3% of stake
    Traded Nov 18, 2025 Filed Nov 18, 2025
    ↗
  34. James Fu Bin Lu 10% owner
    GRNDGrindr
    Sale
    $5.2M 367,981 shares at $14.10 1.6% of stake
    Traded Nov 14–17 Filed Nov 17, 2025
    ↗
  35. Zachary Katz GC and Head of Global Affairs
    GRNDGrindr
    Planned sale
    $198K 13,781 shares at $14.39 2.7% of stake
    Traded Nov 13, 2025 Filed Nov 14, 2025
    ↗
  36. Austin J Balance Chief Product Officer
    GRNDGrindr
    Planned sale
    $515K 34,160 shares at $15.08 6.2% of stake
    Traded Nov 11, 2025 Filed Nov 13, 2025
    ↗
  37. James Fu Bin Lu 10% owner
    GRNDGrindr
    Sale
    $15.7M 1,056,271 shares at $14.83 4.4% of stake
    Traded Nov 11–13 Filed Nov 13, 2025
    ↗
  38. Zachary Katz GC and Head of Global Affairs
    GRNDGrindr
    Planned sale
    $214K 15,601 shares at $13.73 2.8% of stake
    Traded Nov 3, 2025 Filed Nov 5, 2025
    ↗
  39. James Fu Bin Lu Director
    GRNDGrindr
    Sale
    $3.3M 250,000 shares at $13.13 1% of stake
    Traded Oct 17, 2025 Filed Oct 21, 2025
    ↗
  40. James Fu Bin Lu Director
    GRNDGrindr
    Sale
    $10.2M 800,000 shares at $12.81 3.2% of stake
    Traded Oct 15–16 Filed Oct 17, 2025
    ↗
  41. Zachary Katz GC and Head of Global Affairs
    GRNDGrindr
    Planned sale
    $98K 7,645 shares at $12.83 1.4% of stake
    Traded Oct 13, 2025 Filed Oct 15, 2025
    ↗
  42. James Fu Bin Lu Director
    GRNDGrindr
    Sale
    $8.1M 650,000 shares at $12.49 2.5% of stake
    Traded Oct 10–13 Filed Oct 15, 2025
    ↗
  43. Nathan Richardson Director
    GRNDGrindr
    Planned sale
    $14K 1,000 shares at $13.50 4.9% of stake
    Traded Oct 14, 2025 Filed Oct 15, 2025
    ↗
  44. James Fu Bin Lu Director
    GRNDGrindr
    Sale
    $13.2M 1,000,000 shares at $13.15 3.8% of stake
    Traded Oct 9, 2025 Filed Oct 14, 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 4,841 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.