International Business Machines Corporation
International Business Machines Corporation (IBM) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · IBM · as of Sep 30, 2025
Ownership Breakdown
3,521
Institutional Holders
▲ 15 vs Q2
$163.09B
Total Inst. Value
▼ $9.63B vs Q2
939.88M
Shares Outstanding
freeFloat 99.79%
578.14M
13F Shares Held
▼ 10.19M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
IBM largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
VANGUARD GROUP INC computer & office equipment | 95.78M | 10.31% | 10.31% | $27.02T | Nov 7, 2025 | ▲ 724.8K |
BLACKROCK, INC. computer & office equipment | 76.91M | 8.28% | 8.28% | $21.70T | Nov 12, 2025 | ▼ 895.1K |
STATE STREET CORP computer & office equipment | 54.48M | 5.86% | 5.86% | $15.37T | Nov 14, 2025 | ▼ 59.0K |
GEODE CAPITAL MANAGEMENT, LLC computer & office equipment | 22.27M | 2.40% | 2.40% | $6.27T | Nov 12, 2025 | ▲ 332.8K |
CAPITAL WORLD INVESTORS computer & office equipment | 17.05M | 1.83% | 1.83% | $4.81T | Nov 13, 2025 | ▲ 2.08M |
JPMORGAN CHASE & CO computer & office equipment | 16.75M | 1.80% | 1.80% | $4.73T | Nov 26, 2025 | ▼ 5.62M |
MORGAN STANLEY computer & office equipment | 16.02M | 1.72% | 1.72% | $4.52T | May 27, 2026 | ▼ 99.5K |
BANK OF AMERICA CORP /DE/ computer & office equipment | 15.37M | 1.65% | 1.65% | $4.34T | Feb 3, 2026 | ▼ 38.8K |
NORTHERN TRUST CORP computer & office equipment | 10.27M | 1.11% | 1.11% | $2.90T | Nov 14, 2025 | ▼ 202.2K |
LEGAL & GENERAL GROUP PLC computer & office equipment | 7.30M | 78.57% | 78.57% | $2.06T | Nov 13, 2025 | ▲ 176.2K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
27
Increased
+14.38M shares0
New Positions
first time holders23
Decreased
−11.69M shares0
Sold Out
fully exitedNet shares change (top 50)
+2.69M
+14.38M / −11.69M
Net new holders
+4
0 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
IBM insider trading · insider activity
Source: SEC Form 4
0
Buy transactions
1
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Fehring Nicolas A. VP, Controller | Jun 4, 2026 | Gift | 400 | — | — | 16.6K | Form 4 ↗ |
Laguarta Ramon director | Mar 31, 2026 | Award | 126 | — | — | 126 | Form 4 ↗ |
Brown Marianne Catherine director | Mar 31, 2026 | Award | 377 | — | — | 3.7K | Form 4 ↗ |
Buberl Thomas director | Mar 31, 2026 | Award | 377 | — | — | 14.3K | Form 4 ↗ |
FARR DAVID N director | Mar 31, 2026 | Award | 243 | — | — | 23.0K | Form 4 ↗ |
Gorsky Alex director | Mar 31, 2026 | Award | 444 | — | — | 34.0K | Form 4 ↗ |
HOWARD MICHELLE J director | Mar 31, 2026 | Award | 264 | — | — | 16.3K | Form 4 ↗ |
LIVERIS ANDREW N director | Mar 31, 2026 | Award | 403 | — | — | 43.9K | Form 4 ↗ |
MCNABB FREDERICK WILLIAM III director | Mar 31, 2026 | Award | 377 | — | — | 16.1K | Form 4 ↗ |
Miebach Michael director | Mar 31, 2026 | Award | 377 | — | — | 3.9K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
International Business Machines Corporation (IBM) is primarily owned by institutional investors, who hold approximately 61.5% of total shares outstanding. Company insiders own approximately 0.21%, while retail and public investors account for the remaining 38.28%.
The largest institutional shareholder of International Business Machines Corporation is VANGUARD GROUP INC, holding approximately 95.78 million shares — equal to 10.31% of outstanding shares — as of September 30, 2025.
A total of 3,521 institutional investors currently hold IBM stock, with a combined institutional value of approximately $163.09 billion as of the most recent 13F filing period.
Frequently asked questions
IBM ownershipInternational Business Machines Corporation (IBM) is primarily owned by institutional investors, who hold approximately 61.5% of shares. The largest shareholder is VANGUARD GROUP INC with a 10.31% stake. Company insiders hold 0.21%. Data sourced from SEC Form 13F as of September 30, 2025.