Key facts
- MMM - 3M CO has 3 insiders with reported activity on this page.
- No net insider buy/sell flow is currently reported for the last year.
- Recent transaction rows are available for direct filing-level review.
Insider Transactions Reported by 3 Insiders of 3M CO
- Symbol
- MMM on NYSE
- Location
- St Paul, MN
Change
- No meaningful buy/sell imbalance is currently visible in the one-year window.
- Activity will update as new Forms 3/4/5 are filed.
Research use
- This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
- Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.
Evidence
Filed on Form 4
See Original Filing
Issuer insider activity is sourced from SEC Forms 3, 4, and 5.
Insider trading overview
Last 12 monthsInsider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 26 May 2025.
Buys
$0
Shares: 0
Insiders: 0
Sells
$0
Shares: 0
Insiders: 0
Net
$0
Shares: 0
Insiders: 0
| Window (months) | Buy shares | Sell shares | Buy $ | Sell $ | Net $ |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
3M CO executives and other stock owners filed with the SEC include:
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| John P. Banovetz | Executive Vice President | $7,233,241 | Median | 01 May 2026 | ||
| William M. Brown | Chairman & CEO | $1,355,141 | Median | 01 May 2026 | ||
| Theresa E. Reinseth | Sr Vice President & CAO | $594,376 | Median | 01 May 2026 |
Top shareholders of 3M CO (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| STATE STREET CORP |
13D/G
|
STATE STREET CORPORATION |
5.1%
|
27,686,302
|
— | $0 | 31 Dec 2024 | |
| John P. Banovetz |
3/4/5
|
Executive Vice President |
0.01%
|
49,805
|
$7,233,241 | — | 01 May 2026 | |
| PRINCIPAL FINANCIAL GROUP INC |
13F
|
Company |
0.12%
|
627,860
|
$91,184,107 | — | 31 Mar 2026 | |
| ENVESTNET ASSET MANAGEMENT INC |
13F
|
Company |
0.05%
|
289,929
|
$42,106,450 | — | 31 Mar 2026 | |
| FIFTH THIRD BANCORP |
13F
|
Company |
0.05%
|
259,412
|
$37,674,361 | — | 31 Mar 2026 | |
| ROYAL LONDON ASSET MANAGEMENT LTD |
13F
|
Company |
0.04%
|
240,453
|
$34,920,989 | — | 31 Mar 2026 | |
| Mirae Asset Global Investments Co., Ltd. |
13F
|
Company |
0.03%
|
165,290
|
$24,005,067 | — | 31 Mar 2026 | |
| Arizona State Retirement System |
13F
|
Company |
0.03%
|
145,581
|
$21,142,729 | — | 31 Mar 2026 | |
| STATE OF MICHIGAN RETIREMENT SYSTEM |
13F
|
Company |
0.03%
|
137,605
|
$19,984,374 | — | 31 Mar 2026 | |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS |
13F
|
Company |
0.02%
|
122,691
|
$17,818,414 | — | 31 Mar 2026 | |
| MML INVESTORS SERVICES, LLC |
13F
|
Company |
0.02%
|
104,802
|
$15,220,407 | — | 31 Mar 2026 | |
| THRIVENT FINANCIAL FOR LUTHERANS |
13F
|
Company |
0.02%
|
100,400
|
$14,581 | — | 31 Mar 2026 | |
| Calamos Advisors LLC |
13F
|
Company |
0.01%
|
81,068
|
$11,773,506 | — | 31 Mar 2026 | |
| Savant Capital, LLC |
13F
|
Company |
0.01%
|
67,115
|
$9,747,094 | — | 31 Mar 2026 | |
| WELCH & FORBES LLC |
13F
|
Company |
0.01%
|
50,609
|
$7,349,948 | — | 31 Mar 2026 | |
| TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY |
13F
|
Company |
0.01%
|
42,744
|
$6,208 | — | 31 Mar 2026 | |
| DMKC Advisory Services, LLC |
13F
|
Company |
0.01%
|
36,602
|
$5,315,707 | — | 31 Mar 2026 | |
| JOHNSON INVESTMENT COUNSEL INC |
13F
|
Company |
0.01%
|
34,080
|
$4,949,486 | — | 31 Mar 2026 | |
| NEW MEXICO EDUCATIONAL RETIREMENT BOARD |
13F
|
Company |
0%
|
24,298
|
$3,529 | — | 31 Mar 2026 | |
| Midwest Trust Co |
13F
|
Company |
0%
|
21,605
|
$3,137,694 | — | 31 Mar 2026 | |
| CITIZENS FINANCIAL GROUP INC/RI |
13F
|
Company |
0%
|
20,278
|
$2,945,028 | — | 31 Mar 2026 | |
| Sigma Planning Corp |
13F
|
Company |
0%
|
17,078
|
$2,480,236 | — | 31 Mar 2026 | |
| Rossmore Private Capital |
13F
|
Company |
0%
|
15,386
|
$2,234,469 | — | 31 Mar 2026 | |
| PATTEN & PATTEN INC/TN |
13F
|
Company |
0%
|
15,257
|
$2,215,774 | — | 31 Mar 2026 | |
| Texas Yale Capital Corp. |
13F
|
Company |
0%
|
15,213
|
$2,209,379 | — | 31 Mar 2026 | |
| Forvis Mazars Wealth Advisors, LLC |
13F
|
Company |
0%
|
15,157
|
$2,201,257 | — | 31 Mar 2026 | |
| SECURIAN ASSET MANAGEMENT, INC |
13F
|
Company |
0%
|
14,288
|
$2,075,046 | — | 31 Mar 2026 | |
| Wealthspire Advisors, LLC |
13F
|
Company |
0%
|
12,751
|
$1,851,812 | — | 31 Mar 2026 | |
| CenterStar Asset Management, LLC |
13F
|
Company |
0%
|
11,521
|
$1,671,063 | — | 31 Mar 2026 | |
| Carnegie Investment Counsel |
13F
|
Company |
0%
|
11,513
|
$1,672,033 | — | 31 Mar 2026 | |
| FERGUSON WELLMAN CAPITAL MANAGEMENT, INC |
13F
|
Company |
0%
|
10,704
|
$1,554,542 | — | 31 Mar 2026 | |
| ASSOCIATED BANC-CORP |
13F
|
Company |
0%
|
9,866
|
$1,432,839 | — | 31 Mar 2026 | |
| HANTZ FINANCIAL SERVICES, INC. |
13F
|
Company |
0%
|
9,450
|
$1,372 | — | 31 Mar 2026 | |
| ADVISORS MANAGEMENT GROUP INC /ADV |
13F
|
Company |
0%
|
9,080
|
$1,318 | — | 31 Mar 2026 | |
| DIVERSIFY WEALTH MANAGEMENT, LLC |
13F
|
Company |
0%
|
8,989
|
$1,293,248 | — | 31 Mar 2026 | |
| Mutual Advisors, LLC |
13F
|
Company |
0%
|
8,902
|
$1,292,832 | — | 31 Mar 2026 | |
| NATURAL INVESTMENTS, LLC |
13F
|
Company |
0%
|
8,859
|
$1,286 | — | 31 Mar 2026 | |
| Wellington Shields & Co., LLC |
13F
|
Company |
0%
|
7,924
|
$1,150,872 | — | 31 Mar 2026 | |
| Center for Financial Planning, Inc. |
13F
|
Company |
0%
|
7,407
|
$1,075,719 | — | 31 Mar 2026 | |
| Advisors Capital Management, LLC |
13F
|
Company |
0%
|
7,258
|
$1,054,210 | — | 31 Mar 2026 | |
| Chicago Partners Investment Group LLC |
13F
|
Company |
0%
|
6,767
|
$986,467 | — | 31 Mar 2026 | |
| PARR MCKNIGHT WEALTH MANAGEMENT GROUP, LLC |
13F
|
Company |
0%
|
6,387
|
$927,587 | — | 31 Mar 2026 | |
| INTERNATIONAL ASSETS INVESTMENT MANAGEMENT, LLC |
13F
|
Company |
0%
|
6,087
|
$884,139 | — | 31 Mar 2026 | |
| FLC Capital Advisors |
13F
|
Company |
0%
|
5,319
|
$772,496 | — | 31 Mar 2026 | |
| Autumn Glory Partners, LLC |
13F
|
Company |
0%
|
5,136
|
$745,845 | — | 31 Mar 2026 | |
| Citizens National Bank Trust Department |
13F
|
Company |
0%
|
4,754
|
$690,423 | — | 31 Mar 2026 | |
| Valmark Advisers, Inc. |
13F
|
Company |
0%
|
4,556
|
$661,719 | — | 31 Mar 2026 | |
| Members Trust Co |
13F
|
Company |
0%
|
4,338
|
$630,006 | — | 31 Mar 2026 | |
| Pettee Investors, Inc. |
13F
|
Company |
0%
|
3,846
|
$563,516 | — | 31 Mar 2026 | |
| Bosman Wealth Management, LLC |
13F
|
Company |
0%
|
3,706
|
$538,222 | — | 31 Mar 2026 |
Recent Insider Transactions by Companies or Individuals for 3M CO
Showing up to 300 most recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | Value $ | * Price $ | Shares | Shares Owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Theresa E. Reinseth | MMM | Common Stock | Tax liability | -12.8% | -517 | 3,522 | 01 May 2026 | Direct | ||
| Theresa E. Reinseth | MMM | Common Stock | Options Exercise | 55.5% | 1,441 | 4,039 | 01 May 2026 | Direct | ||
| Theresa E. Reinseth | MMM | Restricted Stock Units | Options Exercise | -50% | -1,441 | 1,442 | 01 May 2026 | Direct | ||
| William M. Brown | MMM | Common Stock | Tax liability | -29.5% | -3,912 | 9,331 | 01 May 2026 | Direct | ||
| William M. Brown | MMM | Common Stock | Options Exercise | 183.9% | 8,578 | 13,243 | 01 May 2026 | Direct | ||
| William M. Brown | MMM | Restricted Stock Units | Options Exercise | -50% | -8,578 | 8,579 | 01 May 2026 | Direct | ||
| John P. Banovetz | MMM | Common Stock | Tax liability | -10.9% | -6,120 | 49,805 | 01 May 2026 | Direct | ||
| John P. Banovetz | MMM | Common Stock | Options Exercise | 31.6% | 13,420 | 55,925 | 01 May 2026 | Direct | ||
| John P. Banovetz | MMM | Restricted Stock Units | Options Exercise | -100% | -13,420 | 0 | 01 May 2026 | Direct |
* An asterisk sign (*) next to the price indicates that the price is likely invalid.