Robert David Thomas - 26 Aug 2026 Form 4 Insider Report for INTERNATIONAL BUSINESS MACHINES CORP (IBM)

Reporting relationship: Senior Vice President
Issuer ticker: IBM
Reported as of: 26 Aug 2026
Net transaction value: -$5,758,088
SEC form: 4
Accepted by SEC: 28 Aug 2026, 16:23:44 UTC
Prior SEC filing: 27 Feb 2026
Source filing: View source filing
Reporting owner signature: L. Mallardi on behalf of R. Thomas

Key filing fact

Robert David Thomas filed Form 4 for INTERNATIONAL BUSINESS MACHINES CORP (IBM) on 28 Aug 2026.

Key facts

This page summarizes Robert David Thomas's Form 4 filing for INTERNATIONAL BUSINESS MACHINES CORP (IBM).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 28 Aug 2026, 16:23.

Change

Previous filing in this sequence was filed on 27 Feb 2026.
Current net transaction value: -$5,758,088.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0002005007 Primary reporting owner

Thomas Robert David

Relationship: Senior Vice President
Address: IBM CORPORATION, ONE NEW ORCHARD ROAD, ARMONK
Signature: L. Mallardi on behalf of R. Thomas
Signature date: 28 Aug 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

IBM transaction

Common Stock

Sale

Transaction value: $5,758,088
Shares: -25,000
Change %: -34%
Price: $230.32
Shares after: 47,800
Date: 26 Aug 2026
Ownership: Direct
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

The price reported in Column 4 is weighted average price. These shares were sold in multiple transactions at prices ranging from $229.835 to $230.69, inclusive. The reporting person undertakes to provide to International Business Machines Corporation (IBM), any security holder of IBM, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (1) to this Form 4.