IBM · ownership
Who owns IBM?
BlackRock, Inc. is the largest 13F holder: 12.5% of 13F-reported shares calc.
3,622 institutions report 613.5M IBM shares in Form 13F, as of quarter end Jun 30, 2026; +20.5M shares vs Mar 31, 2026.
- BlackRock, Inc.12.5%76.8M shares · −802K vs prior quarter (down) · 13F filed Aug 7, 2026
- VANGUARD CAPITAL MANAGEMENT LLC10.0%61.4M shares · +540K vs prior quarter (up) · 13F filed Aug 13, 2026
- STATE STREET CORP9.1%56.0M shares · +1.5M vs prior quarter (up) · 13F filed Aug 7, 2026
- VANGUARD PORTFOLIO MANAGEMENT LLC4.6%28.3M shares · +687K vs prior quarter (up) · 13F filed Aug 13, 2026
- GEODE CAPITAL MANAGEMENT, LLC3.8%23.4M shares · +372K vs prior quarter (up) · 13F filed Aug 12, 2026
- MORGAN STANLEY2.8%17.5M shares · −2.2M vs prior quarter (down) · 13F filed Aug 13, 2026
- Capital World Investors2.6%16.2M shares · −855K vs prior quarter (down) · 13F filed Aug 12, 2026
- BANK OF AMERICA CORP /DE/2.4%15.0M shares · −1.1M vs prior quarter (down) · 13F filed Aug 14, 2026
- JPMORGAN CHASE & CO2.0%12.4M shares · −6.1M vs prior quarter (down) · 13F filed Aug 12, 2026
- NORTHERN TRUST CORP1.7%10.2M shares · −77K vs prior quarter (down) · 13F filed Aug 13, 2026
- Bank of New York Mellon Corp1.5%9.3M shares · +2.1M vs prior quarter (up) · 13F filed Aug 6, 2026
- NORGES BANK1.4%8.4M shares · +8.4M vs prior quarter (new position) · 13F filed Aug 12, 2026
- UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC1.2%7.6M shares · +53K vs prior quarter (up) · 13F filed Aug 13, 2026
- FMR LLC1.2%7.4M shares · +2.2M vs prior quarter (up) · 13F filed Aug 13, 2026
- CHARLES SCHWAB INVESTMENT MANAGEMENT INC1.2%7.1M shares · +392K vs prior quarter (up) · 13F filed Aug 14, 2026
- GOLDMAN SACHS GROUP INC1.1%6.9M shares · −64K vs prior quarter (down) · 13F filed Aug 14, 2026
- Legal & General Group Plc1.1%6.7M shares · −247K vs prior quarter (down) · 13F filed Aug 14, 2026
- WELLINGTON MANAGEMENT GROUP LLP1.1%6.5M shares · +6.3M vs prior quarter (up) · 13F filed Aug 14, 2026
- DIMENSIONAL FUND ADVISORS LP0.9%5.6M shares · +447K vs prior quarter (up) · 13F filed Aug 11, 2026
- Amundi0.9%5.5M shares · +691K vs prior quarter (up) · 13F filed Aug 26, 2026
Share of 13F-reported shares, not of shares outstanding. 13F covers managers with over $100M in US equities; it is not a full shareholder list.
Method and sources
Source: SEC Form 13F data sets (bulk). Each row links to the holder’s own 13F-HR filing. Holder names exactly as filed; one group can file under several names and CIKs (for example two Vanguard entities), and they are listed separately, as filed.
% = the holder’s shares ÷ all shares reported in 13F filings for this company and quarter (calculated by Hollsteen). This is not a share of shares outstanding. Change = shares vs the same filer’s 13F for the prior quarter (Mar 31, 2026).
Erroneous filings and rows are handled by a fixed rule set (restatements replace originals; non-equity rows and implausible rows excluded): 24 erroneous filings excluded or replaced this quarter. No market values are shown.
SEC filings only. No price or market data.
Who holds more than 5%?
1 current Schedule 13D/13G holder
Schedule 13D/13G filings (5) ›
- VANGUARD CAPITAL MANAGEMENT LLC 7.48%
13G filed Apr 30, 2026 · event date Mar 31, 2026
- VANGUARD GROUP INC 0%
below 5% latest filing reports under 5% · 13G/A filed Mar 27, 2026 · event date Mar 13, 2026 · 8 earlier filings
- STATE STREET CORP 6.03%
stale filed Jan 30, 2024, as of Dec 31, 2023: older than 18 months, not a current holding · 13G/A filed Jan 30, 2024 · 7 earlier filings
- BlackRock Inc. 8.3%
stale filed Jan 25, 2024: older than 18 months, not a current holding · 13G/A filed Jan 25, 2024 · 6 earlier filings
- BERKSHIRE HATHAWAY INC not stated
stale filed Feb 14, 2018, as of Dec 31, 2017: older than 18 months, not a current holding · 13G/A filed Feb 14, 2018
Method and sources
Schedule 13D (active) and 13G (passive) are filed by holders of more than 5% of a class. The percentage is the holder’s own cover-page “percent of class”. A filing older than 18 months (filed before 2025-04-17) is marked stale and is never shown as a current holding. Data as of Oct 13, 2026.
SEC filings only.
Are insiders buying or selling?
3 open-market purchases, 1 sales in 12 months
Form 4, Oct 13, 2025 – Oct 13, 2026 · 1,484 shares bought, 25,000 shares sold (net −24K) · as of Oct 13, 2026
Latest 25 of 155 Form 4 transactions ›
| Date | Insider (as filed) | Transaction | Shares | Held after |
|---|---|---|---|---|
| Aug 26, 2026 | Thomas Robert David · Senior Vice President | Open-market sale | 25,000 disposed | 47,800 |
| Jul 1, 2026 | Robinson Anne · Senior Vice President | Option exercise / RSU conversion | 5,883 acquired | 16,271 |
| Jul 1, 2026 | Robinson Anne · Senior Vice President | Tax withholding | 3,254 disposed | 13,017 |
| Jul 1, 2026 | Robinson Anne · Senior Vice President | Option exercise / RSU conversion | 1,412 acquired | 14,429 |
| Jul 1, 2026 | Robinson Anne · Senior Vice President | Tax withholding | 781 disposed | 13,648 |
| Jun 4, 2026 | Fehring Nicolas A. · VP, Controller | Gift | 400 disposed | 16,578 |
| Feb 25, 2026 | Miebach Michael · Director | Open-market purchase | 434 acquired | 434 |
| Feb 25, 2026 | HOWARD MICHELLE J · Director | Open-market purchase | 50 acquired | 194 |
| Feb 21, 2026 | Thomas Robert David · Senior Vice President | Option exercise / RSU conversion | 2,631 acquired | 71,270 |
| Feb 21, 2026 | Thomas Robert David · Senior Vice President | Tax withholding | 1,329 disposed | 69,941 |
| Feb 21, 2026 | Thomas Robert David · Senior Vice President | Option exercise / RSU conversion | 3,116 acquired | 73,057 |
| Feb 21, 2026 | Thomas Robert David · Senior Vice President | Tax withholding | 1,575 disposed | 71,482 |
| Feb 21, 2026 | Thomas Robert David · Senior Vice President | Option exercise / RSU conversion | 2,667 acquired | 74,149 |
| Feb 21, 2026 | Thomas Robert David · Senior Vice President | Tax withholding | 1,349 disposed | 72,800 |
| Feb 21, 2026 | Fehring Nicolas A. · VP, Controller | Option exercise / RSU conversion | 396 acquired | 16,599 |
| Feb 21, 2026 | Fehring Nicolas A. · VP, Controller | Tax withholding | 201 disposed | 16,398 |
| Feb 21, 2026 | Fehring Nicolas A. · VP, Controller | Option exercise / RSU conversion | 540 acquired | 16,938 |
| Feb 21, 2026 | Fehring Nicolas A. · VP, Controller | Tax withholding | 274 disposed | 16,664 |
| Feb 21, 2026 | Fehring Nicolas A. · VP, Controller | Option exercise / RSU conversion | 632 acquired | 17,296 |
| Feb 21, 2026 | Fehring Nicolas A. · VP, Controller | Tax withholding | 320 disposed | 16,976 |
| Feb 21, 2026 | LAMOREAUX NICKLE JACLYN · Senior Vice President | Option exercise / RSU conversion | 1,053 acquired | 55,660 |
| Feb 21, 2026 | LAMOREAUX NICKLE JACLYN · Senior Vice President | Tax withholding | 538 disposed | 55,122 |
| Feb 21, 2026 | LAMOREAUX NICKLE JACLYN · Senior Vice President | Option exercise / RSU conversion | 1,738 acquired | 56,860 |
| Feb 21, 2026 | LAMOREAUX NICKLE JACLYN · Senior Vice President | Tax withholding | 888 disposed | 55,972 |
| Feb 21, 2026 | LAMOREAUX NICKLE JACLYN · Senior Vice President | Option exercise / RSU conversion | 1,600 acquired | 57,572 |
Method and sources
Form 4 filings (not 4/A), table I. Open market = transaction codes P (purchase) and S (sale); grants, option exercises, tax withholding and gifts are listed but not counted as buys or sells. Shares and share counts only, as filed; Hollsteen shows no per-share prices. Data is an export, as of Oct 13, 2026, not live.
SEC filings only.