MMM

3M CO

SEC CIK 66740
$157.91 +2.4% · 90 days
90-day buys
$0
0 open-market
90-day sells
$0
0 open-market
Net insider flow
+$0
Net buying
Filings shown
30
Most recent

Insider transaction history

Form 4 filings for MMM, newest first
View on SEC EDGAR ↗
MMM
Grant/award RUMSEY JENNIFER · Director · Grant/award · 1w ago
+$182.7K
1,196 sh @ $153
MMM
Grant/award Sweet Thomas W · Director · Grant/award · May 12, 2026
+$195K
1,360 sh @ $143
MMM
Grant/award Kereere Suzan · Director · Grant/award · May 12, 2026
+$195K
1,360 sh @ $143
MMM
Grant/award Chow Anne H · Director · Grant/award · May 12, 2026
+$195K
1,360 sh @ $143
MMM
Grant/award BROWN THOMAS K · Director · Grant/award · May 12, 2026
+$195K
1,360 sh @ $143
MMM
Grant/award Bozeman David P · Director · Grant/award · May 12, 2026
+$195K
1,360 sh @ $143
MMM
Grant/award Choi Audrey · Director · Grant/award · May 12, 2026
+$195K
1,360 sh @ $143
MMM
Grant/award PIZARRO PEDRO · Director · Grant/award · May 12, 2026
+$195K
1,360 sh @ $143
MMM
Option exercise Reinseth Theresa E · Sr Vice President & CAO · Option exercise · May 1, 2026
+$205.3K
1,441 sh @ $143
MMM
Tax withholding Reinseth Theresa E · Sr Vice President & CAO · Tax withholding · May 1, 2026
−$73.7K
517 sh @ $143
MMM
Option exercise Brown William M · Chairman & CEO · Option exercise · May 1, 2026
+$1.22M
8,578 sh @ $143
MMM
Tax withholding Brown William M · Chairman & CEO · Tax withholding · May 1, 2026
−$557.5K
3,912 sh @ $143
MMM
Option exercise Banovetz John Patrick · Executive Vice President · Option exercise · May 1, 2026
+$1.91M
13,420 sh @ $143
MMM
Tax withholding Banovetz John Patrick · Executive Vice President · Tax withholding · May 1, 2026
−$872.1K
6,120 sh @ $143
MMM
Option exercise Dickson Zoe L · EVP & Chief HR Officer · Option exercise · Apr 1, 2026
+$142.9K
984 sh @ $145
MMM
Tax withholding Dickson Zoe L · EVP & Chief HR Officer · Tax withholding · Apr 1, 2026
−$65.2K
449 sh @ $145
MMM
Sell Reinseth Theresa E · Sr Vice President & CAO · Open-market sale · Feb 11, 2026
−$310.3K
1,796 sh @ $173
MMM
Option exercise Reinseth Theresa E · Sr Vice President & CAO · Option exercise · Feb 11, 2026
+$518.1K
3,349 sh @ $155
MMM
Sell Reinseth Theresa E · Sr Vice President & CAO · Open-market sale · Feb 11, 2026
−$194K
1,123 sh @ $173
MMM
Sell Reinseth Theresa E · Sr Vice President & CAO · Open-market sale · Feb 11, 2026
−$336.1K
1,946 sh @ $173
MMM
Sell Reinseth Theresa E · Sr Vice President & CAO · Open-market sale · Feb 11, 2026
−$41.5K
240 sh @ $173
MMM
Sell Reinseth Theresa E · Sr Vice President & CAO · Open-market sale · Feb 11, 2026
−$6.9K
40 sh @ $173
MMM
Option exercise Dickson Zoe L · EVP & Chief HR Officer · Option exercise · Feb 9, 2026
+$2.58M
25,055 sh @ $103
MMM
Sell Dickson Zoe L · EVP & Chief HR Officer · Open-market sale · Feb 9, 2026
−$4.27M
25,055 sh @ $170

About MMM insider activity

This page tracks every recent Form 4 filed for 3M CO with the U.S. Securities and Exchange Commission. Form 4 is the disclosure that company insiders — officers, directors, and holders of more than 10% of the stock — must file within two business days of buying or selling shares.

The summary above nets open-market purchases against open-market sales over the trailing 90 days. Open-market trades (codes P and S) tend to carry the most signal because they reflect a deliberate choice to put money in or take it out, as opposed to routine grants, option exercises, or tax-withholding events. Use the badges on each row to tell them apart, and always confirm details against the original filing before drawing conclusions.

Frequently asked questions

How often is MMM insider data updated?

Continuously. We read from SEC EDGAR, so new Form 4 filings for 3M CO usually appear here within minutes of being accepted by the SEC.

What does "net insider flow" mean?

It is the total dollar value of open-market insider purchases minus open-market sales over the last 90 days. A positive number (green) means insiders bought more than they sold; a negative number (red) means the reverse.

Why do some rows show grants or option exercises instead of buys?

Insiders receive stock through compensation as well as buying it outright. Form 4 captures all of these. We label each transaction by its SEC code so you can focus on open-market activity if you prefer.

Is this investment advice?

No. InsiderSource presents public filing data for informational purposes only. Insider activity is one of many factors to consider and is never a recommendation to buy or sell.