# 3M CO (TMO) — Institutional Ownership

Source: SEC EDGAR 13F filings, congressional STOCK Act disclosures, SEC Form 4 insider transactions.
CUSIP: 88579Y101
Page URL: https://superinvestorclub.com/stock/TMO
Last updated: 2026-07-08T11:30:34.638Z

## Summary

As of the most recent 13F filing period, 3M CO (TMO) is held by 6 tracked superinvestors with an aggregate position value of $59.0M representing 03518482762910372767669522000 shares.

## Top institutional holders (6)

| Rank | Manager | Fund | Shares | Value | % of Portfolio | Period |
|------|---------|------|--------|-------|----------------|--------|
| 1 | [Mairs & Power](https://superinvestorclub.com/manager/92) | Mairs & Power | 351848 | $51.1M | 0.52% | 2026-03-31 |
| 2 | [Jensen Investment Management](https://superinvestorclub.com/manager/93) | Jensen Investment Management | 27629 | $4.0M | 0.08% | 2026-03-31 |
| 3 | [Ray Dalio](https://superinvestorclub.com/manager/6) | Bridgewater Associates | 10372 | $1.5M | 0.01% | 2026-03-31 |
| 4 | [Dodge & Cox](https://superinvestorclub.com/manager/16) | Dodge & Cox | 7676 | $1.1M | 0.00% | 2026-03-31 |
| 5 | [FPA Queens Road](https://superinvestorclub.com/manager/97) | Bragg Financial Advisors | 6952 | $1.0M | 0.03% | 2026-03-31 |
| 6 | [Torray LLC](https://superinvestorclub.com/manager/3250) | Torray LLC | 2000 | $290,460 | 0.04% | 2026-03-31 |

## Ownership history (quarter-over-quarter)

- 2023-12-31: 1 holders, $1.0M aggregate, 09224 shares
- 2024-03-31: 3 holders, $33.6M aggregate, 0293750137269224 shares
- 2024-06-30: 4 holders, $199.7M aggregate, 0164414529375092246625 shares
- 2024-09-30: 5 holders, $185.3M aggregate, 084075129375020927792242565 shares
- 2024-12-31: 6 holders, $66.2M aggregate, 02937502005319224602820001585 shares
- 2025-03-31: 6 holders, $78.9M aggregate, 029375019811227840919661652000 shares
- 2025-06-30: 6 holders, $77.3M aggregate, 034436611825027800914661302000 shares
- 2025-09-30: 5 holders, $60.5M aggregate, 034645327842769661172000 shares
- 2025-12-31: 5 holders, $63.0M aggregate, 034914727829767669552000 shares
- 2026-03-31: 6 holders, $59.0M aggregate, 03518482762910372767669522000 shares

## Recent congressional trades (50)

- 2025-11-07: Ro Khanna (Democrat-CA) purchase $15,001 - $50,000
- 2025-10-31: Lisa McClain (Republican-MI) sale $1,001 - $15,000
- 2025-10-30: Lisa McClain (Republican-MI) purchase $1,001 - $15,000
- 2025-10-30: Lisa McClain (Republican-MI) sale $1,001 - $15,000
- 2025-08-19: Kelly Morrison (Democrat-MN) sale $1,001 - $15,000
- 2025-08-19: Kelly Morrison (Democrat-MN) sale $15,001 - $50,000
- 2025-08-06: Ro Khanna (Democrat-CA) purchase $1,001 - $15,000
- 2025-08-04: Ro Khanna (Democrat-CA) purchase $15,001 - $50,000
- 2025-07-30: Ro Khanna (Democrat-CA) purchase $1,001 - $15,000
- 2025-07-25: Julia Letlow (Republican-LA) purchase $1,001 - $15,000
- 2025-07-22: Lisa McClain (Republican-MI) purchase $1,001 - $15,000
- 2025-07-01: Ro Khanna (Democrat-CA) purchase $1,001 - $15,000
- 2025-06-23: Ro Khanna (Democrat-CA) purchase $1,001 - $15,000
- 2025-06-20: Ro Khanna (Democrat-CA) purchase $1,001 - $15,000
- 2025-06-10: Lisa McClain (Republican-MI) sale $1,001 - $15,000

## Recent insider transactions (19)

- 2026-02-09: Pettiti Gianluca (Executive Vice President) — Sell 400 shares worth $216,480
- 2025-12-10: SPERLING SCOTT M — Gift 4,386 shares
- 2025-12-04: Lagarde Michel (Executive Vice President & COO) — M 18,637 shares worth $2.0M
- 2025-12-04: Lagarde Michel (Executive Vice President & COO) — M 22,046 shares worth $2.9M
- 2025-12-04: Lagarde Michel (Executive Vice President & COO) — Sell 22,046 shares
- 2025-12-03: Lagarde Michel (Executive Vice President & COO) — Sell 2,521 shares
- 2025-12-03: Lagarde Michel (Executive Vice President & COO) — M 68,000 shares worth $7.2M
- 2025-12-03: Lagarde Michel (Executive Vice President & COO) — Sell 29,479 shares
- 2025-12-02: Lagarde Michel (Executive Vice President & COO) — Sell 30,000 shares
- 2025-12-02: Lagarde Michel (Executive Vice President & COO) — M 36,000 shares worth $3.8M
- 2025-12-02: Lowery Frederick M. (Executive Vice President) — M 6,912 shares worth $1.8M
- 2025-12-02: Lowery Frederick M. (Executive Vice President) — Sell 6,912 shares worth $4.0M
- 2025-12-02: Shropshire Thomas B Jr. (SVP and General Counsel) — Tax Payment 337 shares worth $195,585
- 2025-12-01: Lowery Frederick M. (Executive Vice President) — M 6,913 shares worth $1.8M
- 2025-12-01: Lowery Frederick M. (Executive Vice President) — Sell 6,913 shares worth $4.1M

## Citation

When citing, use: "3M CO (TMO) institutional ownership data via Superinvestor (https://superinvestorclub.com/stock/TMO), aggregating SEC 13F, Form 4, and congressional disclosures."