International Business Machines (IBM) insider buying and selling
Every Table I transaction reported by directors and officers of S&P 500 companies on SEC Form 4 filings (2 business days to file): each row labeled with its official transaction code, nothing filtered out beforehand.
Open-market purchases (code P) are the rare signal, in green; sales (code S) are common and often pre-scheduled (10b5-1). Table II (derivatives) is not included: its prices are exercise prices, not market values. Guide: insider buying.
| Date | Ticker | Insider | Role | Shares | Price | Amount | % of stake | Type / filing |
|---|
Download these transactions as CSV No account, no sign-up. The data is public: it comes from SEC Form 4 filings.
International Business Machines Corporation (IBM) insider buying and selling: 3 purchases, 1 sale
54 Form 4 Table I transactions filed with the SEC by International Business Machines Corporation insiders between 2025-09-02 and 2026-08-28 (15-month history): 3 open-market purchases and 1 sale, plus 50 transactions under other Form 4 codes, broken down one by one below. The largest open-market trade is a sale of $5.8M by Thomas Robert David on 2026-08-26.
International Business Machines insider buying and selling over the last 12 months
Between Oct 21, 2025 and Oct 20, 2026, International Business Machines insiders filed 3 purchases worth $417k and 1 sale worth $5.8M on the open market. The net balance is on the sell side: $5.3M more sold than bought.
The biggest buyer was Farr David N (Director): $304k in 1 purchase, out of 3 different buyers. The biggest seller was Thomas Robert David (Senior Vice President): $5.8M in 1 sale, the only seller.
The largest trade of the period was a sale of $5.8M on Aug 26, 2026, by Thomas Robert David (Senior Vice President). Form 4 on sec.gov (0002005007-26-000005).
The only sale does not carry the 10b5-1 plan flag on the Form 4 (sales scheduled months ahead).
The last three months show 0 purchases and 1 sale, against 0 and 0 in the three before. The latest purchase is from Feb 25, 2026; the latest sale from Aug 26, 2026.
Against its sector (Technology, 85 companies with an insider page on this site), over the same dates the median is 22 sales and 0 purchases on the open market. International Business Machines has more sales than 3 of the other 84, ranks 70 of 85 by net dollars sold, and 32 of the 85 have at least one purchase, International Business Machines included.
The 20 most important trades
The 3 open-market purchases first, then the rest, each type from largest to smallest. The full history is in the tool above, already searched.
See all 54 IBM trades in the full history →
| Trade date | Filed | Insider | Role | Amount | Code | Filing |
|---|---|---|---|---|---|---|
| 2026-01-30 | 2026-01-30 | Farr David N | Director | $304k | P — Open-market purchase | SEC |
| 2026-02-25 | 2026-02-25 | Miebach Michael | Director | $101k | P — Open-market purchaseForm 4 footnoteF1 The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $233.19 to $233.48, 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 purchased at each separate price within the range set forth in this footnote (1) to this Form 4. | SEC |
| 2026-02-25 | 2026-02-25 | Howard Michelle J | Director | $12k | P — Open-market purchase | SEC |
| 2026-08-26 | 2026-08-28 | Thomas Robert David | Senior Vice President | $5.8M | S — Open-market saleForm 4 footnoteF1 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. | SEC |
| 2026-02-01 | 2026-02-02 | Krishna Arvind | Chairman, President & CEO | $12.5M | F — Tax withholding (shares surrendered for taxes) | SEC |
| 2026-02-01 | 2026-02-02 | Kavanaugh James J | Sr. VP and CFO | $7.2M | F — Tax withholding (shares surrendered for taxes) | SEC |
| 2026-02-01 | 2026-02-02 | Thomas Robert David | Senior Vice President | $6.3M | F — Tax withholding (shares surrendered for taxes) | SEC |
| 2026-02-01 | 2026-02-02 | Cohn Gary D | Vice Chairman | $5.8M | F — Tax withholding (shares surrendered for taxes) | SEC |
| 2026-02-01 | 2026-02-02 | Lamoreaux Nickle Jaclyn | Senior Vice President | $3.5M | F — Tax withholding (shares surrendered for taxes) | SEC |
| 2026-02-21 | 2026-02-23 | Krishna Arvind | Chairman, President & CEO | $2.2M | F — Tax withholding (shares surrendered for taxes) | SEC |
| 2026-02-21 | 2026-02-23 | Kavanaugh James J | Sr. VP and CFO | $1.3M | F — Tax withholding (shares surrendered for taxes) | SEC |
| 2026-07-01 | 2026-07-02 | Robinson Anne | Senior Vice President | $1.2M | F — Tax withholding (shares surrendered for taxes) | SEC |
| 2026-02-21 | 2026-02-23 | Thomas Robert David | Senior Vice President | $1.1M | F — Tax withholding (shares surrendered for taxes) | SEC |
| 2026-02-21 | 2026-02-23 | Cohn Gary D | Vice Chairman | $1.1M | F — Tax withholding (shares surrendered for taxes) | SEC |
| 2026-02-01 | 2026-02-02 | Robinson Anne | Senior Vice President | $919k | F — Tax withholding (shares surrendered for taxes) | SEC |
| 2026-02-18 | 2026-02-19 | Krishna Arvind | Chairman, President & CEO | $734k | F — Tax withholding (shares surrendered for taxes) | SEC |
| 2026-02-21 | 2026-02-23 | Lamoreaux Nickle Jaclyn | Senior Vice President | $575k | F — Tax withholding (shares surrendered for taxes) | SEC |
| 2026-02-01 | 2026-02-02 | Fehring Nicolas A. | VP, Controller | $485k | F — Tax withholding (shares surrendered for taxes) | SEC |
| 2026-02-18 | 2026-02-19 | Kavanaugh James J | Sr. VP and CFO | $353k | F — Tax withholding (shares surrendered for taxes) | SEC |
| 2025-09-01 | 2025-09-02 | Fehring Nicolas A. | VP, Controller | $338k | F — Tax withholding (shares surrendered for taxes) | SEC |
The period balance: money in, money out
Across the Form 4 filings submitted between Sep 2, 2025 and Aug 28, 2026, International Business Machines Corporation open-market activity adds up to 3 purchases worth $417k and 1 sale worth $5.8M. The net balance is $5.3M on the sell side.
Only codes P and S count, where an insider puts in or takes out their own money. A selling balance like International Business Machines Corporation's is the norm in the S&P 500, where much of the pay comes as stock. It is not a recommendation to buy or sell: it is what was filed.
Every transaction, code by code
| Code | What it means | Trades | Reported amount |
|---|---|---|---|
| F | Tax withholding (shares surrendered for taxes) | 22 | $47.0M |
| M | Option exercise | 15 | $0 |
| A | Grant or award | 7 | $0 |
| G | Gift | 6 | $0 |
| P | Open-market purchase | 3 | $417k |
| S | Open-market sale | 1 | $5.8M |
| Total | Everything filed in the period | 54 | $53.1M |
28 of the 54 rows carry no usable amount on the Form 4: they count as trades and add $0. The code labels come from the SEC index.
Who has traded
Over the 15 months of history, 10 distinct people or entities have filed International Business Machines Corporation transactions: 3 bought on the open market and 1 sold. Counted by CIK, the fixed number the SEC gives each filer, and not by name, which each filer types their own way.
| Filer | Role | Transactions | Bought (count) | Sold (count) | Last filed |
|---|---|---|---|---|---|
| Thomas Robert David | Senior Vice President | 8 | — | $5.8M (1) | 2026-08-28 |
| Farr David N | Director | 1 | $304k (1) | — | 2026-01-30 |
| Miebach Michael | Director | 1 | $101k (1) | — | 2026-02-25 |
| Howard Michelle J | Director | 1 | $12k (1) | — | 2026-02-25 |
| Fehring Nicolas A. | VP, Controller | 11 | — | — | 2026-06-04 |
| Kavanaugh James J | Sr. VP and CFO | 7 | — | — | 2026-02-23 |
| Krishna Arvind | Chairman, President & CEO | 7 | — | — | 2026-02-23 |
| Cohn Gary D | Vice Chairman | 6 | — | — | 2026-02-23 |
Shown here are the 8 who moved the most money, out of 10. The rest are in the full history, one link above. The name links to all their trades, in any company. "Transactions" counts any code; the money, open market only. Role: from their latest filing.
Month by month
By the month the trade was executed, not the month it was filed; months with no trades show zero. The busiest month was Feb 2026: 2 purchases and 0 sales, worth $113k. 12 of the 15 months have none.
| Month | Purchases | Amount | Sales | Amount |
|---|---|---|---|---|
| Aug 2025 | 0 | $0 | 0 | $0 |
| Sep 2025 | 0 | $0 | 0 | $0 |
| Oct 2025 | 0 | $0 | 0 | $0 |
| Nov 2025 | 0 | $0 | 0 | $0 |
| Dec 2025 | 0 | $0 | 0 | $0 |
| Jan 2026 | 1 | $304k | 0 | $0 |
| Feb 2026 | 2 | $113k | 0 | $0 |
| Mar 2026 | 0 | $0 | 0 | $0 |
| Apr 2026 | 0 | $0 | 0 | $0 |
| May 2026 | 0 | $0 | 0 | $0 |
| Jun 2026 | 0 | $0 | 0 | $0 |
| Jul 2026 | 0 | $0 | 0 | $0 |
| Aug 2026 | 0 | $0 | 1 | $5.8M |
| Sep 2026 | 0 | $0 | 0 | $0 |
| Oct 2026 | 0 | $0 | 0 | $0 |
The last month may be partial: a Form 4 is filed up to two business days later. The table does not say whether the pattern is good or bad; it says when it happened.
International Business Machines Corporation (IBM) analysis page →
Other Technology companies with insider trades
All 500 are listed in the section index →
Which insiders are buying their own company stock →
How to read this data
None of the 1 sale in the table is flagged as scheduled (10b5-1 plan), the kind signed months ahead and executed automatically. International Business Machines's 3 open-market purchases (code P) are the rare signal: insiders are already paid in stock, so buying more means putting in their own money. The latest filing is from Aug 28, 2026, and a Form 4 arrives up to two business days after the trade.
2 of the 20 rows in the table carry footnotes from the Form 4 itself, folded into the code column and copied verbatim; a row with no footnote means the filing has none.
Guide: Insider buying · all guides
What is behind these trades
The concepts on this page, explained from scratch in the Academy. Free, no account.
- What the efficiency hypothesis says and what it does NOT sayIf an insider's purchase is public and anyone can read it, is there any information left in it? That is the exact question that brings people here.
- Who really moves the market: the types of investorWho sits on the other side of each order, and where a company's own insiders fit among them.
- Supply, demand and price: why it rises and falls constantlyHow a piece of news ends up inside the price, and why the reaction to a filed sale is rarely the one you would expect.
Source: SEC EDGAR Form 4. This is a list of public facts, not financial advice or a recommendation to buy or sell.