Michael Larson

Sits on 5 boards. Last updated September 28, 2026

Time on boards

Boards served
5
Current seats
5
Board service
15 years
Director since
2023

15 years of board service in total across 5 boards, counting each seat separately. Longest: Ecolab Inc., 3 years.

Ecolab Inc. Director
3 years · Since 2023
3 years · Since 2023
3 years · Since 2023
7 months · Since 2026

Shareholder support

Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.

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
Sep 30, 2026 Ecolab Inc. Grant or award +131 — —
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 — —

Questions about Michael Larson

What boards is Michael Larson on?

Michael Larson sits on the boards of Ecolab Inc., Fomento Economico Mexicano S.A.B. de C.V., Republic Services Inc., Western Asset Inflation-Linked Income Fund and Western Asset Inflation-Linked Opportunities & Income Fund.

How long has Michael Larson served on boards?

Our records show at least 15 years of board service across 5 boards, the earliest from 2023.

Reviews (0)

Sign in to write a review.

No reviews yet. Be the first to write one.

We use cookies to run this site and, with your permission, to measure traffic and support the affiliate links that help fund it.