Insider trading in AI stocks, Q4 2025: who sold, who bought

Q4 2025: we read 3,116 Forms 3, 4 and 5 filed by 1,506 executives, directors and large shareholders of 194 AI and semiconductor companies tracked on Silicon Floor. 667 of them sold $6.2B of stock and 30 bought $10.6M — about $580 sold for every dollar bought (Form 4 codes S and P: in the market or privately).

Biggest insider sellers

  1. Michael S. Dell, Chief Executive Officer · Director · 10% owner, sold $1.0B of Dell (DELL) — 6.3M shares in 1 trade, Oct 9, 2025; held 294.3M shares at the end of the quarter ($37.0B). Form 4
  2. Scott Cook, Director, sold $327.5M of Intuit (INTU) — 494,365 shares in 99 trades, Dec 3, 2025 to Dec 31, 2025; held 5.7M shares at the end of the quarter ($3.8B). Form 4
  3. Jensen Huang, President and CEO · Director, sold $265.0M of NVIDIA (NVDA) — 1.4M shares in 112 trades, Oct 1, 2025 to Oct 29, 2025; held 812.0M shares at the end of the quarter ($151.4B). Form 4
  4. Brian M. Venturo, Chief Strategy Officer · Director, sold $215.6M of CoreWeave (CRWV) — 2.1M shares in 91 trades, Oct 1, 2025 to Dec 31, 2025; held 31.6M shares at the end of the quarter ($2.3B). Form 4
  5. Susan Ocampo, 10% owner, sold $199.6M of MACOM (MTSI) — 1.3M shares in 22 trades, Oct 7, 2025 to Dec 9, 2025; held 8.0M shares at the end of the quarter ($1.4B). Form 4
  6. Henry Samueli, Director, sold $128.3M of Broadcom (AVGO) — 320,316 shares in 10 trades, Dec 8, 2025; held 85.6M shares at the end of the quarter ($29.6B). Form 4
  7. Mark Stevens, Director, sold $103.7M of NVIDIA (NVDA) — 572,500 shares in 2 trades, Dec 5, 2025 to Dec 19, 2025; held 34.2M shares at the end of the quarter ($6.4B). Form 4
  8. Matthew Prince, CEO & Board Co-Chair · Director, sold $97.2M of Cloudflare (NET) — 471,456 shares in 68 trades, Oct 14, 2025 to Dec 5, 2025; held 26.6M shares at the end of the quarter ($5.3B). Form 4
  9. Yat Tung Lam, Chief Operating Officer · Director, sold $91.3M of Credo (CRDO) — 600,000 shares in 39 trades, Oct 1, 2025 to Dec 11, 2025; held 3.1M shares at the end of the quarter ($452.8M). Form 4
  10. James A. Burke, President and CEO · Director, sold $90.1M of Vistra (VST) — 450,798 shares in 30 trades, Oct 1, 2025 to Dec 11, 2025; held 1.0M shares at the end of the quarter ($166.8M). Form 4
  11. Matthew Jacobson, Director, sold $87.1M of Datadog (DDOG) — 436,116 shares in 10 trades, Nov 10, 2025 to Nov 11, 2025; held 675,558 shares at the end of the quarter ($91.9M). Form 4
  12. Hock E. Tan, President and CEO · Director, sold $76.9M of Broadcom (AVGO) — 230,000 shares in 13 trades, Dec 18, 2025 to Dec 23, 2025; held 978,474 shares at the end of the quarter ($338.6M). Form 4
  13. Lee Klarich, EVP Chief Product & Tech Ofcr · Director, sold $75.1M of Palo Alto Networks (PANW) — 362,322 shares in 18 trades, Oct 6, 2025 to Dec 3, 2025; held 967,645 shares at the end of the quarter ($178.2M). Form 4
  14. Michael Hsing, CEO · Director, sold $74.1M of Monolithic Power (MPWR) — 77,000 shares in 36 trades, Nov 11, 2025 to Nov 12, 2025; held 1.1M shares at the end of the quarter ($953.7M). Form 4
  15. Brannin McBee, Chief Development Officer, sold $70.3M of CoreWeave (CRWV) — 890,986 shares in 167 trades, Dec 2, 2025 to Dec 31, 2025; held 16.1M shares at the end of the quarter ($1.1B). Form 4

Insider buying

Purchases with their own money: the rarer signal.

  1. Laurette T. Koellner, Director, bought $2.1M of Celestica (CLS) — 6,000 shares in 4 trades, Oct 30, 2025; held 6,000 shares at the end of the quarter ($1.8M). Form 4
  2. Ford Tamer, President & CEO · Director, bought $1.9M of Lattice Semiconductor (LSCC) — 30,000 shares in 4 trades, Nov 6, 2025 to Nov 7, 2025; held 285,745 shares at the end of the quarter ($21.0M). Form 4
  3. Douglas R. Deason, Director, bought $1.0M of Galaxy Digital (GLXY) — 34,000 shares in 8 trades, Nov 7, 2025 to Nov 13, 2025; held 57,482 shares at the end of the quarter ($1.3M). Form 4
  4. Dave Gitlin, Chairman and CEO · Director, bought $1.0M of Carrier (CARR) — 19,300 shares in 1 trade, Nov 25, 2025; held 813,245 shares at the end of the quarter ($43.0M). Form 4
  5. Eugene F. Reilly, Director, bought $994,110.46 of American Tower (AMT) — 5,554 shares in 1 trade, Oct 31, 2025; held 5,689 shares at the end of the quarter ($998,817.73). Form 4
  6. Paul R. Auvil III, Director, bought $710,230.00 of Elastic (ESTC) — 10,000 shares in 3 trades, Dec 1, 2025; held 37,956 shares at the end of the quarter ($2.9M). Form 4
  7. David Blair Kirk, Director, bought $500,727.04 of Salesforce (CRM) — 1,936 shares in 1 trade, Dec 17, 2025; held 10,677 shares at the end of the quarter ($2.8M). Form 4
  8. Stephen E. Wakefield, Executive Vice President, bought $484,400.19 of AAON (AAON) — 6,141 shares in 3 trades, Dec 11, 2025 to Dec 12, 2025; held 27,942 shares at the end of the quarter ($2.1M). Form 4
  9. Harry L. You, Director, bought $325,130.00 of Broadcom (AVGO) — 1,000 shares in 1 trade, Dec 18, 2025; held 36,602 shares at the end of the quarter ($12.7M). Form 4
  10. Iain MacKenzie, Director, bought $298,100.00 of Ichor (ICHR) — 20,000 shares in 2 trades, Nov 6, 2025 to Nov 17, 2025; held 130,011 shares at the end of the quarter ($2.4M). Form 4
  11. Aj Teague, Director, bought $199,214.40 of Solaris Energy Infrastructure (SEI) — 4,620 shares in 2 trades, Dec 17, 2025; held 114,775 shares at the end of the quarter ($5.3M). Form 4
  12. John F. Malloy, Director, bought $186,719.40 of Hubbell (HUBB) — 435 shares in 1 trade, Nov 17, 2025; held 19,085 shares at the end of the quarter ($8.5M). Form 4
  13. David MacLennan, Director, bought $170,658.00 of Caterpillar (CAT) — 300 shares in 1 trade, Nov 6, 2025; held 7,947 shares at the end of the quarter ($4.6M). Form 4
  14. Amanda M. Brock, Co-Chief Executive Officer · Director, bought $150,025.41 of Solaris Energy Infrastructure (SEI) — 3,669 shares in 1 trade, Dec 17, 2025; held 141,080 shares at the end of the quarter ($6.5M). Form 4
  15. William Staples, Chief Executive Officer · Director, bought $124,750.08 of GitLab (GTLB) — 3,276 shares in 1 trade, Dec 31, 2025; held 345,671 shares at the end of the quarter ($13.0M). Form 4

Most sold by insiders

  1. Dell (DELL): $1.0B sold by 4 insiders
  2. NVIDIA (NVDA): $503.7M sold by 8 insiders
  3. CoreWeave (CRWV): $366.7M sold by 6 insiders
  4. Intuit (INTU): $329.7M sold by 3 insiders
  5. Broadcom (AVGO): $249.6M sold by 6 insiders, $325,130.00 bought
  6. Datadog (DDOG): $224.9M sold by 12 insiders
  7. MACOM (MTSI): $216.3M sold by 7 insiders
  8. Credo (CRDO): $202.5M sold by 8 insiders
  9. Amphenol (APH): $200.7M sold by 7 insiders
  10. Palantir (PLTR): $175.9M sold by 8 insiders
  11. Cloudflare (NET): $173.7M sold by 9 insiders
  12. Monolithic Power (MPWR): $173.4M sold by 6 insiders
  13. Snowflake (SNOW): $129.9M sold by 6 insiders
  14. Vistra (VST): $111.1M sold by 4 insiders
  15. Cisco (CSCO): $87.8M sold by 9 insiders

Where insiders bought

  1. Celestica (CLS): $2.1M bought by 1 insider, $4.0M sold
  2. Lattice Semiconductor (LSCC): $1.9M bought by 1 insider, $1.6M sold
  3. Galaxy Digital (GLXY): $1.0M bought by 1 insider, $45.8M sold
  4. Carrier (CARR): $1.0M bought by 1 insider
  5. American Tower (AMT): $994,110.46 bought by 1 insider
  6. Elastic (ESTC): $710,230.00 bought by 1 insider, $4.8M sold
  7. Salesforce (CRM): $500,727.04 bought by 1 insider, $44.5M sold
  8. AAON (AAON): $484,400.19 bought by 1 insider, $3.2M sold
  9. Solaris Energy Infrastructure (SEI): $349,239.81 bought by 2 insiders, $2.8M sold
  10. Broadcom (AVGO): $325,130.00 bought by 1 insider, $249.6M sold
  11. Ichor (ICHR): $298,100.00 bought by 1 insider
  12. Hubbell (HUBB): $186,719.40 bought by 1 insider, $2.1M sold
  13. Caterpillar (CAT): $170,658.00 bought by 1 insider, $39.8M sold
  14. GitLab (GTLB): $124,750.08 bought by 1 insider, $28.9M sold
  15. Core Scientific (CORZ): $107,500.00 bought by 1 insider

Who sold

RoleSoldSellersBoughtBuyers
CEOs$2.5B76$3.2M5
CFOs$325.3M66$7,499.541
Other executives$1.9B323$521,897.896
Directors$1.2B196$6.9M18
10% owners$199.6M1$0.000
Others$22.7M7$0.000

Month by month

MonthSoldBought
October 2025$2.7B$3.1M
November 2025$1.5B$5.0M
December 2025$2.0B$2.5M

New insiders

70 people filed their first Form 3 at a tracked company in Q4 2025: new CEOs, CFOs, directors and large shareholders.

Q4 2026 so far

$266.9M sold by 56 insiders and $0.00 bought by 0, through Oct 5, 2026. Every trade this quarter

How we read it

Officers, directors and 10% shareholders report each trade on a Form 4 within two business days. This report counts the purchases and sales (codes P and S: in the market or privately) of people filing on their own behalf, at the price they report, including shares held through their trusts and family vehicles. Grants, option exercises, shares withheld for taxes and gifts are not trades. Funds that report through a director they appoint, such as Silver Lake at Dell or LS Power at NRG, are left out: those shares are the fund's ($4.4B sold in Q4 2025). So are shares that change hands between insiders or their own accounts at the same price on the same day, and shares a spouse also reports are counted once. Amendments replace the lines they correct. Many large sales follow pre-arranged trading plans (Rule 10b5-1); each filing says so. Not investment advice.

Every quarter

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