The largest holder of 3M stock is JPMorgan Investment Management, Inc., with 39.4 million shares (7.65% of the company), worth about $6.78 billion as of September 25, 2026. The 10 largest holders together own 37.0%.
In Q2 2026, 2,341 institutional holdings reports listed 517.0 million shares worth $71.00 billion, up 34.3% in shares from Q1 2026.
Insiders reported 94 transactions in the last two years: 17 sales worth $26.00 million and no purchases. The newest one on file is from August 5, 2026 (Chavez Rodriguez Beatriz Karina, Officer).
Major holders as of September 25, 2026; quarterly totals from institutional holdings reports (latest Q2 2026); insider transactions on file through August 5, 2026.

2026Q2
| Holder | Shares | % of company | Value |
|---|---|---|---|
| JPMorgan Investment Management, Inc. | 39.4 million | 7.65% | $6.8B |
| BlackRock Advisors LLC | 35.4 million | 6.87% | $6.1B |
| Vanguard Capital Management LLC | 34.1 million | 6.61% | $5.9B |
| State Street Corporation | 27.8 million | 5.40% | $4.8B |
| Geode Capital Management LLC | 12.0 million | 2.32% | $2.1B |
| Vanguard Portfolio Management LLC | 9.5 million | 1.85% | $1.6B |
| BlackRock Life Ltd. | 8.6 million | 1.67% | $1.5B |
| Capital Research & Management Co. (World Investors) | 8.4 million | 1.63% | $1.4B |
| State Farm Investment Management Corp. | 7.9 million | 1.54% | $1.4B |
| Norges Bank (13F) | 7.8 million | 1.51% | $1.3B |
As of September 25, 2026.
| Quarter | Reports | Shares | Value |
|---|---|---|---|
| Q2 2026 | 2,341 | 517.0 million | $71.0B |
| Q1 2026 | 2,266 | 385.0 million | $55.8B |
| Q4 2025 | 2,373 | 394.0 million | $63.0B |
| Q3 2025 | 2,244 | 422.0 million | $65.5B |
| Q2 2025 | 2,255 | 397.0 million | $60.2B |
| Q1 2025 | 2,260 | 392.0 million | $57.5B |
| Q4 2024 | 2,244 | 369.0 million | $48.1B |
| Q3 2024 | 2,214 | 380.0 million | $52.2B |
Shares and value held by institutions that file quarterly holdings reports (options not included).
| Insider | Date | Title | Transaction | Value |
|---|---|---|---|---|
| Chavez Rodriguez Beatriz Karina | Aug 5, 2026 | Officer | Sale at price 182.51 per share. | $663,430 |
| Banovetz John Patrick | Jul 23, 2026 | Officer | Conversion of Exercise of derivative security at price 154.69 per share. | $1.2M |
| Banovetz John Patrick | Jul 23, 2026 | Officer | Sale at price 170.44 per share. | $1.3M |
| Reinseth Theresa E | Jul 23, 2026 | Officer | Sale at price 169.42 per share. | $156,544 |
| Rhodes Kevin H | Jul 22, 2026 | Officer | Conversion of Exercise of derivative security at price 154.69 per share. | $1.2M |
| Goralski Christian T Jr | Jul 22, 2026 | Officer | Conversion of Exercise of derivative security at price 154.69 per share. | $758,290 |
| Rhodes Kevin H | Jul 22, 2026 | Officer | Sale at price 171.20 per share. | $1.3M |
| Goralski Christian T Jr | Jul 22, 2026 | Officer | Sale at price 170.46 per share. | $835,577 |
| Bauer Wendy A | Jul 1, 2026 | Officer | Conversion of Exercise of derivative security at price 159.96 per share. | $1.3M |
| Rumsey Jennifer W. | Jun 5, 2026 | Director | Stock Award(Grant) at price 152.77 per share. | $182,712 |
| Choi Audrey | May 12, 2026 | Director | Stock Award(Grant) at price 143.34 per share. | $195,000 |
| Kereere Suzan | May 12, 2026 | Director | Stock Award(Grant) at price 143.34 per share. | $195,000 |
Newest 12 of 94 insider transactions in the last two years.
JPMorgan Investment Management, Inc., with 7.65% of the company (as of September 25, 2026). Next: BlackRock Advisors LLC (6.87%) and Vanguard Capital Management LLC (6.61%).
2,341 institutional holdings reports listed 3M shares in Q2 2026, 517.0 million shares in all worth $71.00 billion.
In the last two years insiders reported 17 sales and no purchases (94 transactions in all); the newest on file is from August 5, 2026.