Tom Gayner's MMM Position Overview
Tom Gayner (via Markel Group Inc.) currently holds 118.3K shares of 3M Company (MMM) worth $0, representing 0.00% of the portfolio. First purchased in 2013-Q2, this long-term strategic position has been held for 50 quarters.
Based on 13F filings since 2013, Tom Gayner has maintained a long-term strategic position in MMM, representing a significant commitment to this investment thesis. Largest addition occurred in Q4 2022, adding 21.4K shares. Largest reduction occurred in Q2 2025, reducing 175.5K shares.
Analysis based on 13F filings available since 2013 Q2
Tom Gayner's 3M Company (MMM) Holding Value Over Time
Track share changes against reported price movement
Quarterly 3M Company (MMM) Trades by Tom Gayner
| Period | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q2 2013 | +244,903 | Add 0.00% | 244,902 | $91.89 |
| Q3 2013 | -119 | Reduce 0.05% | 244,783 | $100.34 |
| Q1 2014 | -2,023 | Reduce 0.83% | 242,760 | $114.00 |
| Q2 2019 | +4,760 | Add 1.96% | 247,520 | $145.66 |
| Q3 2019 | +17,850 | Add 7.21% | 265,370 | $138.15 |
| Q4 2019 | +6,545 | Add 2.47% | 271,915 | $148.25 |
| Q1 2020 | +6,783 | Add 2.49% | 278,698 | $114.71 |
| Q1 2021 | +4,641 | Add 1.67% | 283,339 | $161.92 |
| Q2 2021 | +3,094 | Add 1.09% | 286,433 | $166.92 |
| Q3 2021 | +7,735 | Add 2.70% | 294,168 | $147.41 |
| Q4 2021 | +7,140 | Add 2.43% | 301,308 | $149.27 |
| Q1 2022 | +19,694 | Add 6.54% | 321,002 | $125.11 |
| Q4 2022 | +21,420 | Add 6.67% | 342,422 | $100.77 |
| Q1 2023 | +7,140 | Add 2.09% | 349,562 | $88.33 |
| Q2 2024 | -55,812 | Reduce 15.97% | 293,750 | $102.19 |
| Q2 2025 | -175,500 | Reduce 59.74% | 118,250 | $152.24 |
| Q3 2025 | -118,250 | Sold Out | 118,250 | $0.00 |
Tom Gayner's 3M Company Investment FAQs
Tom Gayner first purchased 3M Company (MMM) in Q2 2013, acquiring 244,902 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Tom Gayner has held 3M Company (MMM) for 50 quarters since Q2 2013. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Tom Gayner's largest addition to 3M Company (MMM) was in Q2 2013, adding 244,902 shares worth $22.5 M. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
According to the latest 13F filing for Q3 2025, Tom Gayner's firm, Markel Group Inc., owns 118,250 shares of 3M Company (MMM), valued at approximately $0. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
As of the Q3 2025 filing, 3M Company (MMM) represents approximately 0.00% of Tom Gayner's publicly disclosed stock portfolio, making it one of their key holdings. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Tom Gayner's peak holding in 3M Company (MMM) was 349,562 shares, as reported at the end of Q1 2023. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.