Mark W. Murphy
CIK 1575293 · EVP & Chief Info Digital Off · last filed 2026-02-18
Mark W. Murphy is an EVP & Chief Info Digital Off who has filed 34 SEC Form 4 insider transactions across 2 companies since 2013. The most recent filing, for MMM, was dated Jun 10, 2026. Across all open-market trades the lifetime net is −$5.2M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $2.2M across reported positions. 17 SEC filings were submitted jointly with 3M CO.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
Charts
Trading activity, where the exposure sits, and each trade against the stock price.
MMM price and trades
Daily close with each Form 4 filing on this company marked: green = open-market buy, red = open-market sale, purple = grants, exercises, gifts and other non-market transactions. Marker size scales with the dollar value.
Shares held
Shares owned after each reported transaction on this company (direct holdings as reported).
Open-market buying and selling
by monthDollar value of open-market purchases (code P, up) and sales (code S, down) across all companies, by filing month. Grants, exercises and gifts are excluded.
Exposure by company
latestMost recently reported shares × current price. Faded bars (*) have had no filing in 3 years, so the person may no longer hold them. Click a bar to chart that company.
Filer Profile
ST. PAUL, MN 55117
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| MMM | EVP & Chief Info Digital Off | 13,024 | $172.15 | $2.24M | -$3.17M | 13 | 2026-02-18 |
| ST JUDE MEDICAL, LLC (STJ) Delisted | VP, IT and CIO | 6,715 | — | — | -$2.01M | 18 | 2016-12-20 |
Recent Filings
34 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-06-10 | MMM | Notice (144) | −5,078 | -$808.0K | EDGAR |
| 2026-02-18 | MMM | Tax (F) | −4,793 | $0 | EDGAR |
| 2026-02-10 | MMM | Grant (A) | — | $0 | EDGAR |
| 2026-02-09 | MMM | Mixed | +5,657 | $976.7K | EDGAR |
| 2026-02-04 | MMM | Mixed | +10,570 | $0 | EDGAR |
| 2025-10-30 | MMM | Mixed | — | -$450.0K | EDGAR |
| 2025-10-29 | MMM | Notice (144) | −19,061 | -$3.17M | EDGAR |
| 2025-02-13 | MMM | Grant (A) | — | $0 | EDGAR |
| 2025-02-10 | MMM | Mixed | +2,032 | $304.5K | EDGAR |
| 2025-02-05 | MMM | Mixed | +2,256 | $0 | EDGAR |
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.