25 insiders reported 277 Form 4 transactions for 3M CO (MMM) over the past 18 months (most recent 2026-07-02). Recent activity: Bauer Wendy A (Group President) Buy 7,952 shares, Bauer Wendy A (Group President) Sell 3,558 shares, RUMSEY JENNIFER (Director) Buy 1,196 shares, BROWN THOMAS K (Director) Buy 1,360 shares, PIZARRO PEDRO (Director) Buy 1,360 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-02 | Bauer Wendy A | Group President | Buy | 7,952 | $1.3M |
| 2026-07-02 | Bauer Wendy A | Group President | Sell | 3,558 | $569,138 |
| 2026-06-09 | RUMSEY JENNIFER | Director | Buy | 1,196 | $182,712 |
| 2026-05-13 | BROWN THOMAS K | Director | Buy | 1,360 | $195,000 |
| 2026-05-13 | PIZARRO PEDRO | Director | Buy | 1,360 | $195,000 |
| 2026-05-13 | Sweet Thomas W | Director | Buy | 1,360 | $195,000 |
| 2026-05-13 | Fitterling James R | Director | Buy | 1,360 | $195,000 |
| 2026-05-13 | Bozeman David P | Director | Buy | 1,360 | $195,000 |
| 2026-05-13 | Mitchill Neil G. JR | Director | Buy | 1,360 | $195,000 |
| 2026-05-13 | Chow Anne H | Director | Buy | 1,360 | $195,000 |
| 2026-05-13 | Kereere Suzan | Director | Buy | 1,360 | $195,000 |
| 2026-05-13 | Choi Audrey | Director | Buy | 1,360 | $195,000 |
| 2026-04-09 | Goralski Christian T JR | Group President | Buy | 9 | $875 |
| 2026-04-09 | Goralski Christian T JR | Group President | Buy | 3 | $310 |
| 2026-04-09 | Goralski Christian T JR | Group President | Buy | 3 | $381 |
| 2026-04-09 | Goralski Christian T JR | Group President | Buy | 2 | $256 |
| 2026-04-02 | Dickson Zoe L | EVP & Chief HR Officer | Buy | 984 | $142,926 |
| 2026-04-02 | Dickson Zoe L | EVP & Chief HR Officer | Sell | 449 | $65,217 |
| 2026-02-18 | Dickson Zoe L | EVP & Chief HR Officer | Sell | 475 | $0 |
| 2026-02-18 | Banovetz John Patrick | Executive Vice President | Sell | 5,629 | $0 |
| 2026-02-18 | Rhodes Kevin H | EVP, Chief Legal Off & Secret | Sell | 5,837 | $0 |
| 2026-02-18 | Murphy Mark W. | EVP & Chief Info Digital Off | Sell | 4,793 | $0 |
| 2026-02-12 | Chavez Rodriguez Beatriz Karina | Group President | Sell | 2,306 | $398,131 |
| 2026-02-12 | Reinseth Theresa E | Sr Vice President & CAO | Sell | 1,796 | $310,331 |
| 2026-02-12 | Reinseth Theresa E | Sr Vice President & CAO | Buy | 3,349 | $518,057 |
Source: SEC Form 4 filings · as of 2026-07-02