3M Company (MMM) Ownership
MMM ownership summary
as of October 18, 2026- Institutions
- 76.7% of shares outstanding
- Insiders
- 0.10% of shares outstanding
- Shares outstanding
- 515.7M
- Float
- 514.8M shares available to trade
- Short interest
- 1.88% 9.7M shares short
- Days to cover
- 3.24 short interest up 5.0% vs prior month
- Institutions 76.71%
- Insiders 0.10%
- Other investors 23.19%
MMM top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | BlackRock Inc | 8.74% | 45.0M | $7.42B | +2.4M (+5.6%) | June 30, 2026 |
| 2 | JPMorgan Chase & Co | 7.65% | 39.4M | $6.50B | −7.0M (−15.1%) | June 30, 2026 |
| 3 | Vanguard Capital Management, LLC | 6.61% | 34.1M | $5.61B | −162,378 (−0.5%) | June 30, 2026 |
| 4 | State Street Corp | 5.40% | 27.8M | $4.58B | +105,222 (+0.4%) | June 30, 2026 |
| 5 | Geode Capital Management, LLC | 2.32% | 12.0M | $1.97B | +59,831 (+0.5%) | June 30, 2026 |
| 6 | Vanguard Portfolio Management, LLC | 1.85% | 9.5M | $1.57B | +92,034 (+1.0%) | June 30, 2026 |
| 7 | Capital World Investors | 1.63% | 8.4M | $1.38B | −780,006 (−8.5%) | June 30, 2026 |
| 8 | State Farm Mutual Automobile Ins Co | 1.54% | 7.9M | $1.31B | — | June 30, 2026 |
| 9 | NORGES BANK | 1.51% | 7.8M | $1.29B | −1.7M (−17.7%) | June 30, 2026 |
| 10 | Morgan Stanley - Brokerage Accounts | 1.48% | 7.6M | $1.26B | +148,418 (+2.0%) | June 30, 2026 |
| 11 | Northern Trust Corp | 1.09% | 5.6M | $927.3M | +2,670 (+0.0%) | June 30, 2026 |
| 12 | Newport Trust Co. | 1.06% | 5.5M | $898.8M | −139,007 (−2.5%) | June 30, 2026 |
| 13 | FMR Inc | 1.03% | 5.3M | $874.4M | −4.2M (−44.0%) | June 30, 2026 |
| 14 | D. E. Shaw & Co LP | 0.94% | 4.9M | $802.5M | −420,546 (−7.9%) | June 30, 2026 |
| 15 | Amundi | 0.88% | 4.5M | $747.3M | +1.8M (+67.0%) | June 30, 2026 |
| 16 | SG Americas Securities, LLC | 0.88% | 4.5M | $746.9M | +2.2M (+91.3%) | June 30, 2026 |
| 17 | Bank of America Corp | 0.87% | 4.5M | $737.4M | −986,527 (−18.1%) | June 30, 2026 |
| 18 | The Goldman Sachs Group Inc | 0.86% | 4.5M | $734.6M | −843,952 (−15.9%) | June 30, 2026 |
| 19 | UBS Asset Mgmt Americas Inc | 0.76% | 3.9M | $648.4M | +270,458 (+7.4%) | June 30, 2026 |
| 20 | Amvescap Plc. | 0.71% | 3.6M | $600.3M | −566,717 (−13.5%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 9 holders added 7.0M shares and 10 cut 16.8M.
MMM top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Vanguard MStar Total Stk Mkt Idx Invest | 3.21% | 16.6M | $2.73B | −33,239 (−0.2%) | August 31, 2026 |
| 2 | Vanguard 500 Index Investor | 2.63% | 13.5M | $2.23B | −311,450 (−2.2%) | September 30, 2026 |
| 3 | iShares Core S&P 500 ETF | 1.33% | 6.9M | $1.13B | −11,063 (−0.2%) | September 30, 2026 |
| 4 | Fidelity 500 Index | 1.31% | 6.8M | $1.12B | +26,006 (+0.4%) | August 31, 2026 |
| 5 | JPMorgan Large Cap Growth I | 1.25% | 6.5M | $1.07B | +1.3M (+24.5%) | August 31, 2026 |
| 6 | State Street® SPDR® S&P 500® ETF | 1.23% | 6.3M | $1.04B | — | September 30, 2026 |
| 7 | State Street®SPDR®DowJonesIndstrAvgETFTr | 0.99% | 5.1M | $843.5M | −44,505 (−0.9%) | September 30, 2026 |
| 8 | Vanguard MStar Value Index Investor | 0.95% | 4.9M | $809.2M | −75,437 (−1.5%) | September 30, 2026 |
| 9 | JPMorgan Equity Premium Income ETF | 0.90% | 4.7M | $767.4M | +2,880 (+0.1%) | September 30, 2026 |
| 10 | American Funds Washington Mutual A | 0.85% | 4.4M | $721.1M | −186,515 (−4.1%) | September 30, 2026 |
| 11 | JPMorgan Equity Income I | 0.63% | 3.3M | $536.5M | −69,145 (−2.1%) | August 31, 2026 |
| 12 | State Street® IndstrlSelSectSPDR®ETF | 0.56% | 2.9M | $477.0M | −3,244 (−0.1%) | September 30, 2026 |
| 13 | Vanguard Institutional Index I | 0.53% | 2.7M | $449.4M | −60,206 (−2.2%) | September 30, 2026 |
| 14 | iShares MSCI USA Quality Factor ETF | 0.48% | 2.5M | $409.8M | +2,316 (+0.1%) | September 30, 2026 |
| 15 | American Funds Income Fd of Amer A | 0.42% | 2.2M | $359.4M | — | September 30, 2026 |
| 16 | Vanguard High Dividend Yield ETF | 0.41% | 2.1M | $346.1M | −17,151 (−0.8%) | September 30, 2026 |
| 17 | Strategic Advisers U.S. Total Stock | 0.34% | 1.7M | $286.6M | −209,031 (−10.7%) | August 31, 2026 |
| 18 | Janus Henderson Research D | 0.27% | 1.4M | $228.9M | −28,515 (−2.0%) | August 31, 2026 |
| 19 | State Street® SPDR® Port S&P 500® ETF | 0.26% | 1.4M | $223.4M | −910 (−0.1%) | September 30, 2026 |
| 20 | iShares Core S&P 500 ETF USD Acc | 0.24% | 1.2M | $202.6M | +284 (+0.0%) | September 30, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
MMM insider transactions
latest 20| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2026-03-31 | Tina Smith | Sell | $145.06 | — | — |
| 2026-03-30 | Ro Khanna | Sell | $142.56 | — | — |
| 2026-02-11 | Theresa E Reinseth | Sell | $172.75 | 5,145 | $888,799 |
| 2026-02-05 | Ro Khanna | Buy | $164.88 | — | — |
| 2026-02-04 | Julia Letlow | Sell | $163.70 | — | — |
| 2026-02-02 | Julia Letlow | Sell | $153.30 | — | — |
| 2026-01-29 | Ro Khanna | Sell | $156.34 | — | — |
| 2026-01-23 | Ro Khanna | Buy | $162.47 | — | — |
| 2025-12-18 | Julie Johnson | Sell | $161.76 | — | — |
| 2025-11-13 | Julie Johnson | Sell | $170.31 | — | — |
| 2025-11-13 | Zoe L Dickson | Sell | $169.78 | 13,826 | $2.3M |
| 2025-11-13 | Zoe L Dickson | Sell | $169.82 | 13,629 | $2.3M |
| 2025-10-29 | Mark W Murphy | Sell | $166.55 | 19,061 | $3.2M |
| 2025-10-20 | Josh Gottheimer | Sell | $154.84 | — | — |
| 2025-08-14 | Julie Johnson | Sell | $156.89 | — | — |
| 2025-08-07 | Christian T Goralski Jr | Sell | $150.18 | 6,165 | $925,860 |
| 2025-08-05 | Theresa E Reinseth | Sell | $150.63 | 3,477 | $523,741 |
| 2025-07-25 | Ro Khanna | Sell | $151.27 | — | — |
| 2025-06-18 | Julie Johnson | Buy | $142.43 | — | — |
| 2025-05-23 | John Patrick Banovetz | Sell | $148.37 | 7,759 | $1.2M |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
MMM shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns MMM
Institutional investors own 76.7% of 3M's shares and insiders 0.10%. The largest holder is BlackRock Inc with 8.74% of the shares (45.0M), as of June 30, 2026. Among the top 20 institutions, 9 added shares and 10 reduced their stake in the latest filings. Short interest is 1.88% of the float, or 3.24 days of average trading volume. The share count fell 17.2% since 2014.
Related: MMM analyst forecast, MMM key metrics, MMM dividend history. See the MMM stock overview for the latest quote and news.
MMM ownership FAQ
Who owns the most 3M stock?
The largest shareholders of 3M are BlackRock Inc (8.74%), JPMorgan Chase & Co (7.65%), Vanguard Capital Management, LLC (6.61%), State Street Corp (5.40%), Geode Capital Management, LLC (2.32%).
What percentage of 3M is owned by institutions?
Institutions hold 76.7% of 3M's shares outstanding; insiders hold 0.10%.
Which funds own 3M?
The largest fund holders of 3M are Vanguard MStar Total Stk Mkt Idx Invest (3.21%), Vanguard 500 Index Investor (2.63%), iShares Core S&P 500 ETF (1.33%), Fidelity 500 Index (1.31%), JPMorgan Large Cap Growth I (1.25%).
What is 3M's short interest?
9.7M shares of 3M were sold short, 1.88% of the float; at the average daily volume it would take 3.24 days to cover.
Are insiders buying or selling 3M?
Of the latest 20 reported insider transactions in 3M (since May 23, 2025), 3 were purchases and 17 were sales.
How many shares of 3M are outstanding?
3M has 515.7M shares outstanding, of which 514.8M are in the public float.