Michael Larson
Sits on 5 boards. Overboarded · 5 public boards Last updated September 27, 2026
Time on boards
- Boards served
- 5
- Current seats
- 5
- Board service
- 14 years
- Director since
- 2023
14 years of board service in total across 5 boards, counting each seat separately. Longest: Ecolab Inc., 3 years.
Shareholder support
Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
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Republic Services Inc. May 7, 202694.9%
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Republic Services Inc. May 12, 202388.9%
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
| Date | Company | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Jun 30, 2026 | Ecolab Inc. | Grant or award | +130 | — | — |
| Mar 31, 2026 | Ecolab Inc. | Grant or award | +138 | — | — |
| Mar 27, 2026 | Ecolab Inc. | Option exercise | +2,300 | $115.08 | $264,684 |
| Mar 27, 2026 | Ecolab Inc. | Shares withheld for tax | −1,006 | $262.89 | $264,467 |
| Jan 31, 2026 | Republic Services Inc. | Option exercise | +1,858 | — | — |
| Dec 31, 2025 | Ecolab Inc. | Grant or award | +128 | — | — |
| Sep 30, 2025 | Ecolab Inc. | Grant or award | +123 | — | — |
| Jun 30, 2025 | Ecolab Inc. | Grant or award | +126 | — | — |
| Mar 31, 2025 | Ecolab Inc. | Grant or award | +134 | — | — |
| Mar 4, 2025 | Ecolab Inc. | Option exercise | +2,200 | $112.75 | $248,050 |
| Mar 4, 2025 | Ecolab Inc. | Shares withheld for tax | −921 | $269.17 | $247,906 |
| Jan 31, 2025 | Republic Services Inc. | Option exercise | +1,775 | — | — |
| Dec 31, 2024 | Ecolab Inc. | Grant or award | +144 | — | — |
| Sep 30, 2024 | Ecolab Inc. | Grant or award | +133 | — | — |
| Jun 30, 2024 | Ecolab Inc. | Grant or award | +141 | — | — |
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