Michael F. Roman is Chairman at 3M CO (MMM). They have made 12 open-market trades across 1 company since 2013, most recently 2026-06-03.
CIK 0001577544
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 12 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| MMM | SELL | 2025-01-29 | 2025-01-30 | $152.29 | $14.8M | -3.2% | -1.0% | -10.4% |
| MMM | SELL | 2025-01-24 | 2025-01-27 | $150.01 | $8.3M | +0.7% | -2.6% | -8.8% |
| MMM | SELL | 2024-08-07 | 2024-08-08 | $123.46 | $1.4M | +2.5% | +3.1% | +7.4% |
| MMM | SELL | 2022-05-03 | 2022-05-04 | $146.21 | $3.1M | -1.7% | -4.7% | -7.5% |
| MMM | SELL | 2021-05-03 | 2021-05-04 | $197.80 | $2.7M | +2.2% | +1.8% | -1.2% |
| MMM | SELL | 2020-05-01 | 2020-05-04 | $148.70 | $2.3M | -9.3% | +7.6% | +0.3% |
| MMM | SELL | 2020-01-31 | 2020-02-03 | $162.00 | $1.4M | -0.0% | -3.6% | -7.1% |
| MMM | SELL | 2018-02-02 | 2018-02-06 | $246.66 | $1.6M | +1.5% | +1.3% | -14.2% |
| MMM | SELL | 2016-12-13 | 2016-12-14 | $180.00 | $726K | +0.9% | +0.1% | +7.4% |
| MMM | SELL | 2016-04-19 | 2016-04-20 | $170.00 | $255K | -0.4% | -2.3% | +7.3% |
| MMM | SELL | 2015-05-15 | 2015-05-18 | $162.73 | $1.1M | -6.3% | -0.8% | -0.8% |
| MMM | SELL | 2013-11-08 | 2013-11-12 | $127.28 | $630K | -6.3% | -0.8% | -0.8% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.