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.

4,839 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

MGNI insider trades

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

MGNI page
All Buys Sales
Everyone CEOs CFOs Executives Directors 10% owners
Any size $100K+ $1M+ $10M+
Hide planned sales
  1. Paul Caine Director
    MGNIMagnite
    Planned sale
    $316K 12,500 shares at $25.29 9.1% of stake
    Traded Oct 12 Filed Oct 14
    ↗
  2. Paul Caine Director
    MGNIMagnite
    Planned sale
    $199K 7,500 shares at $26.50 5.2% of stake
    Traded Sep 17 Filed Sep 18
    ↗
  3. Douglas S Knopper Director
    MGNIMagnite
    Planned sale
    $981K 37,337 shares at $26.28 42% of stake
    Traded Sep 17 Filed Sep 18
    ↗
  4. David Buonasera Chief Technology Officer
    MGNIMagnite
    Planned sale
    $28K 1,165 shares at $24.00 0.5% of stake
    Traded Sep 14 Filed Sep 16
    ↗
  5. Robert F Spillane Director
    MGNIMagnite
    Sale
    $246K 10,363 shares at $23.76 15% of stake
    Traded Sep 14 Filed Sep 16
    ↗
  6. Katie Seitz Evans See Remarks
    MGNIMagnite
    Planned sale
    $336K 13,997 shares at $24.00 3.1% of stake
    Traded Sep 11 Filed Sep 11
    ↗
  7. Aaron Saltz Chief Legal Officer
    MGNIMagnite
    Planned sale
    $936K 40,000 shares at $23.41 15% of stake
    Traded Sep 10 Filed Sep 11
    ↗
  8. Paul Caine Director
    MGNIMagnite
    Planned sale
    $118K 5,000 shares at $23.53 3.3% of stake
    Traded Sep 10 Filed Sep 11
    ↗
  9. Katie Seitz Evans See Remarks
    MGNIMagnite
    Planned sale
    $1M 43,385 shares at $23.59 8.7% of stake
    Traded Sep 8–9 Filed Sep 10
    ↗
  10. David Buonasera Chief Technology Officer
    MGNIMagnite
    Planned sale
    $152K 6,414 shares at $23.68 2.5% of stake
    Traded Sep 1–2 Filed Sep 3
    ↗
  11. Sarah Patricia Harden Director
    MGNIMagnite
    Planned sale
    $1.2M 48,986 shares at $23.57 30% of stake
    Traded Aug 26–28 Filed Aug 28
    ↗
  12. Paul Caine Director
    MGNIMagnite
    Planned sale
    $188K 7,500 shares at $25.00 4.8% of stake
    Traded Aug 14 Filed Aug 18
    ↗
  13. Sean Patrick Buckley See Remarks
    MGNIMagnite
    Planned sale
    $270K 11,030 shares at $24.48 3.6% of stake
    Traded Aug 17–18 Filed Aug 18
    ↗
  14. Brian Gephart Chief Accounting Officer
    MGNIMagnite
    Sale
    $308K 12,479 shares at $24.68 11% of stake
    Traded Aug 10 Filed Aug 12
    ↗
  15. Rachel Lam Director
    MGNIMagnite
    Sale
    $242K 10,000 shares at $24.16 4.2% of stake
    Traded Aug 10 Filed Aug 12
    ↗
  16. Paul Caine Director
    MGNIMagnite
    Planned sale
    $122K 5,000 shares at $24.35 3.1% of stake
    Traded Aug 10 Filed Aug 12
    ↗
  17. Sean Patrick Buckley See Remarks
    MGNIMagnite
    Planned sale
    $1.6M 67,179 shares at $24.49 18% of stake
    Traded Aug 6 Filed Aug 7
    ↗
  18. Douglas S Knopper Director
    MGNIMagnite
    Planned sale
    $848K 37,337 shares at $22.72 30% of stake
    Traded Aug 6 Filed Aug 7
    ↗
  19. David Buonasera Chief Technology Officer
    MGNIMagnite
    Planned sale
    $179K 7,649 shares at $23.46 2.8% of stake
    Traded Aug 6 Filed Aug 7
    ↗
  20. Katie Seitz Evans See Remarks
    MGNIMagnite
    Planned sale
    $480K 20,000 shares at $24.00 3.9% of stake
    Traded Aug 6 Filed Aug 7
    ↗
  21. Michael G. Barrett CEO
    MGNIMagnite
    Planned sale
    $6.7M 293,968 shares at $22.72 42% of stake
    Traded Aug 6 Filed Aug 7
    ↗
  22. Michael G. Barrett CEO
    MGNIMagnite
    Planned sale
    $785K 38,596 shares at $20.35 8.7% of stake
    Traded Jul 15 Filed Jul 17
    ↗
  23. Paul Caine Director
    MGNIMagnite
    Planned sale
    $103K 5,000 shares at $20.64 3% of stake
    Traded Jul 10 Filed Jul 14
    ↗
  24. David Buonasera Chief Technology Officer
    MGNIMagnite
    Planned sale
    $26K 1,224 shares at $21.00 0.5% of stake
    Traded Jul 7 Filed Jul 9
    ↗
  25. Sean Patrick Buckley See Remarks
    MGNIMagnite
    Planned sale
    $404K 19,233 shares at $21.03 5.1% of stake
    Traded Jul 7 Filed Jul 9
    ↗
  26. David Buonasera Chief Technology Officer
    MGNIMagnite
    Planned sale
    $188K 9,376 shares at $20.00 3.4% of stake
    Traded Jul 1 Filed Jul 2
    ↗
  27. Michael G. Barrett CEO
    MGNIMagnite
    Planned sale
    $1.5M 75,000 shares at $19.50 16% of stake
    Traded Jun 29 Filed Jul 1
    ↗
  28. Sean Patrick Buckley See Remarks
    MGNIMagnite
    Planned sale
    $365K 19,233 shares at $19.00 4.9% of stake
    Traded Jun 17 Filed Jun 18
    ↗
  29. Douglas S Knopper Director
    MGNIMagnite
    Planned sale
    $676K 37,337 shares at $18.10 23% of stake
    Traded Jun 16 Filed Jun 17
    ↗
  30. David Buonasera Chief Technology Officer
    MGNIMagnite
    Planned sale
    $247K 13,699 shares at $18.03 4.7% of stake
    Traded Jun 15–17 Filed Jun 17
    ↗
  31. Michael G. Barrett CEO
    MGNIMagnite
    Planned sale
    $4.7M 278,596 shares at $16.92 41% of stake
    Traded Jun 15–16 Filed Jun 17
    ↗
  32. Douglas S Knopper Director
    MGNIMagnite
    Planned sale
    $169K 10,766 shares at $15.73 6.2% of stake
    Traded Jun 10 Filed Jun 10
    ↗
  33. David T. Pearson Director
    MGNIMagnite
    Planned sale
    $168K 10,766 shares at $15.65 12% of stake
    Traded Jun 10 Filed Jun 10
    ↗
  34. David Buonasera Chief Technology Officer
    MGNIMagnite
    Planned sale
    $21K 1,409 shares at $15.00 0.5% of stake
    Traded Jun 1 Filed Jun 3
    ↗
  35. Robert F Spillane Director
    MGNIMagnite
    Sale
    $133K 10,000 shares at $13.33 19% of stake
    Traded May 19 Filed May 21
    ↗
  36. Adam Lee Soroca Chief Product Officer
    MGNIMagnite
    Planned sale
    $258K 21,529 shares at $12.00 5.3% of stake
    Traded Feb 18 Filed Feb 18
    ↗
  37. Adam Lee Soroca Chief Product Officer
    MGNIMagnite
    Planned sale
    $283K 16,656 shares at $17.00 4.9% of stake
    Traded Dec 17, 2025 Filed Dec 19, 2025
    ↗
  38. Sean Patrick Buckley President, Revenue
    MGNIMagnite
    Planned sale
    $32K 2,213 shares at $14.50 0.8% of stake
    Traded Nov 24, 2025 Filed Nov 26, 2025
    ↗
  39. Robert F Spillane Director
    MGNIMagnite
    Sale
    $178K 12,500 shares at $14.22 19% of stake
    Traded Nov 21, 2025 Filed Nov 21, 2025
    ↗
  40. Sean Patrick Buckley President, Revenue
    MGNIMagnite
    Planned sale
    $59K 4,426 shares at $13.36 1.6% of stake
    Traded Nov 18, 2025 Filed Nov 18, 2025
    ↗
  41. Adam Lee Soroca Chief Product Officer
    MGNIMagnite
    Planned sale
    $144K 10,857 shares at $13.23 3.2% of stake
    Traded Nov 18, 2025 Filed Nov 18, 2025
    ↗
  42. Paul Caine Director
    MGNIMagnite
    Planned sale
    $100K 5,000 shares at $20.00 3.2% of stake
    Traded Oct 24, 2025 Filed Oct 28, 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 4,839 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.