Form4insider filings, from the source

Company · CIK 0000051143 · SIC 3570 — Computer & office Equipment · NYSE

INTERNATIONAL BUSINESS MACHINES CORP · IBM

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $5.8M · 1net −$5.8M
$10k$10k$100k$100k$1M$1M$10M$10MbuyssalesMar 28Apr 27May 28Jun 28Jul 29Aug 28Sep 28

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Aug 26, 2026 SForm 4 →Aug 28, 4:23 pm EDTRobert David ThomasSenior Vice President25,000$230.32$5,758,08847,800−34.3%
Jul 1, 2026 FMForm 4 →Jul 2, 4:19 pm EDTAnne RobinsonSenior Vice President11,330$286.73$1,156,93513,648—
Jun 4, 2026 GForm 4 →Jun 4, 4:00 pm EDTNicolas A. FehringVP, Controller400——16,578—

Reported at this company — derivatives (options, RSUs, warrants)

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Aug 27, 2026 IForm 4 →Aug 28, 4:26 pm EDTArvind KrishnaChairman, President & CEO, Director8,376$238.79$2,000,00028,447—
Jul 1, 2026 MForm 4 →Jul 2, 4:19 pm EDTAnne RobinsonSenior Vice President7,295——2,824—
Jun 30, 2026 AForm 4 →Jul 2, 4:13 pm EDTRamon LaguartaDirector325$281.21$91,393451—
Jun 30, 2026 AForm 4 →Jul 2, 4:13 pm EDTAlfred W ZollarDirector325$281.21$91,3939,940—
Jun 30, 2026 AForm 4 →Jul 2, 4:12 pm EDTPeter R. VoserDirector356$281.21$100,11132,600—
Jun 30, 2026 AForm 4 →Jul 2, 4:11 pm EDTMartha E PollackDirector209$281.21$58,77317,506—
Jun 30, 2026 AForm 4 →Jul 2, 4:09 pm EDTMichael MiebachDirector325$281.21$91,3934,278—
Jun 30, 2026 AForm 4 →Jul 2, 4:07 pm EDTFrederick William McNabb IIIDirector325$281.21$91,39316,518—
Jun 30, 2026 AForm 4 →Jul 2, 4:06 pm EDTAndrew N LiverisDirector347$281.21$97,58044,497—
Jun 30, 2026 AForm 4 →Jul 2, 4:06 pm EDTMichelle J HowardDirector228$281.21$64,11616,639—
Jun 30, 2026 AForm 4 →Jul 2, 4:05 pm EDTAlex GorskyDirector383$281.21$107,70334,605—
Jun 30, 2026 AForm 4 →Jul 2, 4:04 pm EDTDavid N FarrDirector209$281.21$58,77323,346—
Jun 30, 2026 AForm 4 →Jul 2, 4:04 pm EDTThomas BuberlDirector341$281.21$95,89314,706—
Jun 30, 2026 AForm 4 →Jul 2, 4:03 pm EDTMarianne Catherine BrownDirector325$281.21$91,3934,016—