MMM's three largest insider shareholders as of September 09, 2026 are Michael G. Vale (Group President, 70.78K shares), Michael G. Vale (Group President, 70.78K shares), Michael G. Vale (Group President, 70.78K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Michael G. Vale | Group President | 70,782 | 0 | 70,782 | 13.6% | 21 Feb, 2023 |
| 2 | John Patrick Banovetz | Executive Vice President | 50,057 | 0 | 50,057 | 9.6% | 24 Jul, 2026 |
| 3 | Herbert L Henkel | Director | 0 | 44,226 | 44,226 | 8.5% | 02 May, 2022 |
| 4 | Kevin H Rhodes | Evp, Chief Legal Off Secret | 43,780 | 0 | 43,780 | 8.4% | 23 Jul, 2026 |
| 5 | Monish D Patolawala | President And Cfo | 43,540 | 0 | 43,540 | 8.3% | 01 Jul, 2024 |
| 6 | Mark W. Murphy | Evp Chief Info Digital Off | 22,872 | 0 | 22,872 | 4.4% | 09 Feb, 2026 |
| 7 | Zoe L Dickson | Evp Chief Hr Officer | 21,533 | 0 | 21,533 | 4.1% | 02 Apr, 2026 |
| 8 | Khandpur K Ashish | Group President | 21,527 | 0 | 21,527 | 4.1% | 05 Oct, 2023 |
| 9 | Ahmet Muhtar Kent | Director | 0 | 19,014 | 19,014 | 3.6% | 28 Apr, 2023 |
| 10 | Thomas K Brown | Director | 0 | 17,687 | 17,687 | 3.4% | 13 May, 2026 |
| 11 | Gregory R Page | Director | 0 | 15,481 | 15,481 | 3.0% | 14 May, 2025 |
| 12 | Rodriguez Beatriz Karina Chavez | Group President | 14,035 | 0 | 14,035 | 2.7% | 06 Aug, 2026 |
| 13 | Peter D Gibbons | Group President | 13,416 | 0 | 13,416 | 2.6% | 10 Feb, 2025 |
| 14 | Jeffrey R Lavers | Group President | 10,845 | 0 | 10,845 | 2.1% | 05 Oct, 2023 |
| 15 | Eric D. Hammes | Evp Chief Count Gov Svc Off | 10,430 | 0 | 10,430 | 2.0% | 01 May, 2023 |
| 16 | William M Brown | Chairman Ceo | 9,331 | 0 | 9,331 | 1.8% | 04 May, 2026 |
| 17 | Wendy A Bauer | Group President | 9,086 | 0 | 9,086 | 1.7% | 02 Jul, 2026 |
| 18 | Denise R Rutherford | Senior Vice President | 8,222 | 0 | 8,222 | 1.6% | 03 Aug, 2021 |
| 19 | James R Fitterling | Director | 0 | 7,868 | 7,868 | 1.5% | 13 May, 2026 |
| 20 | Mojdeh Poul | Group President | 7,637 | 0 | 7,637 | 1.5% | 18 May, 2022 |
| 21 | Pedro Pizarro | Director | 0 | 7,570 | 7,570 | 1.4% | 13 May, 2026 |
| 22 | Christian T Jr Goralski | Group President | 6,971 | 0 | 6,971 | 1.3% | 23 Jul, 2026 |
| 23 | Suzan Kereere | Director | 6,422 | 0 | 6,422 | 1.2% | 13 May, 2026 |
| 24 | Audrey Choi | Director | 0 | 6,170 | 6,170 | 1.2% | 13 May, 2026 |
| 25 | Thomas W Sweet | Director | 0 | 5,796 | 5,796 | 1.1% | 13 May, 2026 |
| 26 | Anne H Chow | Director | 0 | 5,530 | 5,530 | 1.1% | 13 May, 2026 |
| 27 | Patricia A Woertz | Director | 0 | 5,257 | 5,257 | 1.0% | 02 May, 2022 |
| 28 | Pamela J. Craig | Director | 0 | 4,471 | 4,471 | 0.9% | 11 May, 2022 |
| 29 | Dambisa F Moyo | Director | 0 | 3,500 | 3,500 | 0.7% | 11 May, 2022 |
| 30 | Theresa E Reinseth | Sr Vice President Cao | 2,615 | 0 | 2,615 | 0.5% | 24 Jul, 2026 |
| 31 | Victoria Clarke | Evp Chief Public Affairs Off | 2,220 | 0 | 2,220 | 0.4% | 03 Dec, 2025 |
| 32 | Neil G. Jr Mitchill | Director | 0 | 1,674 | 1,674 | 0.3% | 13 May, 2026 |
| 33 | David P Bozeman | Director | 1,360 | 0 | 1,360 | 0.3% | 13 May, 2026 |
| 34 | Jennifer Rumsey | Director | 0 | 1,196 | 1,196 | 0.2% | 09 Jun, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 05 Aug, 2026 | Rodriguez Beatriz Karina Chavez | Group President | Disposed S | 3,635 | $182.51 | $663.43K | 14,035 | Direct |
| 23 Jul, 2026 | Theresa E Reinseth | Sr Vice President Cao | Disposed S | 924 | $169.42 | $156.54K | 2,615 | Direct |
| 23 Jul, 2026 | John Patrick Banovetz | Executive Vice President | Acquired M | 7,880 | $154.69 | $1.22Mn | 57,937 | Direct |
| 23 Jul, 2026 | John Patrick Banovetz | Executive Vice President | Disposed S | 7,880 | $170.44 | $1.34Mn | 50,057 | Direct |
| 23 Jul, 2026 | John Patrick Banovetz | Executive Vice President | Disposed M | 7,880 | $0.00 | $0 | 0 | Direct |
| 22 Jul, 2026 | Christian T Jr Goralski | Group President | Acquired M | 4,902 | $154.69 | $758.29K | 11,873 | Direct |
| 22 Jul, 2026 | Kevin H Rhodes | Evp, Chief Legal Off Secret | Acquired M | 7,669 | $154.69 | $1.19Mn | 51,449 | Direct |
| 22 Jul, 2026 | Christian T Jr Goralski | Group President | Disposed S | 4,902 | $170.46 | $835.58K | 6,971 | Direct |
| 22 Jul, 2026 | Kevin H Rhodes | Evp, Chief Legal Off Secret | Disposed S | 7,669 | $171.20 | $1.31Mn | 43,780 | Direct |
| 22 Jul, 2026 | Kevin H Rhodes | Evp, Chief Legal Off Secret | Disposed M | 7,669 | $0.00 | $0 | 0 | Direct |
| 22 Jul, 2026 | Christian T Jr Goralski | Group President | Disposed M | 4,902 | $0.00 | $0 | 0 | Direct |
| 01 Jul, 2026 | Wendy A Bauer | Group President | Acquired M | 7,952 | $159.96 | $1.27Mn | 12,644 | Direct |
| 01 Jul, 2026 | Wendy A Bauer | Group President | Disposed F | 3,558 | $159.96 | $569.14K | 9,086 | Direct |
| 01 Jul, 2026 | Wendy A Bauer | Group President | Disposed M | 7,952 | $0.00 | $0 | 0 | Direct |
| 05 Jun, 2026 | Jennifer Rumsey | Director | Acquired A | 1,196 | $152.77 | $182.71K | 1,196 | Indirect |
| 12 May, 2026 | Neil G. Jr Mitchill | Director | Acquired A | 1,360 | $143.34 | $195.00K | 1,674 | Indirect |
| 12 May, 2026 | Suzan Kereere | Director | Acquired A | 1,360 | $143.34 | $195.00K | 6,422 | Direct |
| 12 May, 2026 | James R Fitterling | Director | Acquired A | 1,360 | $143.34 | $195.00K | 7,868 | Indirect |
| 12 May, 2026 | Audrey Choi | Director | Acquired A | 1,360 | $143.34 | $195.00K | 6,170 | Indirect |
| 12 May, 2026 | Thomas W Sweet | Director | Acquired A | 1,360 | $143.34 | $195.00K | 5,796 | Indirect |