🕵️ 3M Co ($MMM)
SEC insider & ownership activity, last 12 months · CIK 66740 · every row links its SEC filing
Over the last 12 months insiders sold $17.5M against $2K of open-market buying. Zoe L. Dickson sold $8.1M (Nov–Feb). No red-flag 8-Ks in the window.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
1 buyer, $2K (4 lots) · 7 sellers, $17.5M (78 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Zoe L. Dickson | 0 | – | 46 | $8.1M | Feb 9, 2026 |
| Mark W. Murphy | 0 | – | 20 | $3.2M | Oct 29, 2025 |
| Christian T. Goralski Jr. | 4 | $2K | 2 | $1.8M | Jul 22, 2026 |
| Theresa E. Reinseth | 0 | – | 7 | $1.6M | Jul 23, 2026 |
| Banovetz John Patrick | 0 | – | 1 | $1.3M | Jul 23, 2026 |
| Kevin H. Rhodes | 0 | – | 1 | $1.3M | Jul 22, 2026 |
| Chavez Rodriguez Beatriz Karina | 0 | – | 1 | $204K | Feb 9, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Vanguard Capital Management | 7.6% | 13G | Apr 27, 2026 | filing ↗ | |
| JPMorgan Chase & Co. | 7.4% | 13G | Jul 27, 2026 | filing ↗ | |
| Blackrock, Inc. | 6.6% | 13G | Apr 27, 2026 | filing ↗ | |
| State Street Corporation | 5.1% | 13G | Feb 4, 2025 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Theresa E. Reinseth | $157K | Jul 23, 2026 | filing ↗ |
| Banovetz John Patrick | $1.3M | Jul 23, 2026 | filing ↗ |
| Christian T. Goralski Jr. | $836K | Jul 22, 2026 | filing ↗ |
| Kevin H. Rhodes | $1.3M | Jul 22, 2026 | filing ↗ |
| Mark W. Murphy | $808K | Jun 10, 2026 | filing ↗ |
| Zoe L. Dickson | $849K | Jun 9, 2026 | filing ↗ |
| Clarke Victoria | $180K | Feb 12, 2026 | filing ↗ |
| Theresa E. Reinseth | $889K | Feb 11, 2026 | filing ↗ |
| Chavez Rodriguez Beatriz Karina | $204K | Feb 9, 2026 | filing ↗ |
| Zoe L. Dickson | $7.8M | Feb 9, 2026 | filing ↗ |
| Clarke Victoria | $701K | Feb 6, 2026 | filing ↗ |
| Clarke Victoria | $294K | Jan 22, 2026 | filing ↗ |
| Zoe L. Dickson | $4.7M | Nov 13, 2025 | filing ↗ |
| Mark W. Murphy | $3.2M | Oct 29, 2025 | filing ↗ |
| Christian T. Goralski Jr. | $926K | Aug 7, 2025 | filing ↗ |
| Theresa E. Reinseth | $524K | Aug 5, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Earnings (2.02) | Jul 21, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 21, 2026 | filing ↗ |
| Officer/director changes (5.02) | Jun 5, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 5, 2026 | filing ↗ |
| Shareholder vote (5.07) | May 12, 2026 | filing ↗ |
| Material agreement (1.01) | Apr 30, 2026 | filing ↗ |
| New financial obligation (2.03) | Apr 30, 2026 | filing ↗ |
| Earnings (2.02) | Apr 21, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 21, 2026 | filing ↗ |
| Officer/director changes (5.02) | Feb 3, 2026 | filing ↗ |
| Earnings (2.02) | Jan 20, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 20, 2026 | filing ↗ |
| Earnings (2.02) | Oct 21, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 21, 2025 | filing ↗ |
| Officer/director changes (5.02) | Aug 11, 2025 | filing ↗ |