LARSON MICHAEL

CIK: 0001098825
Director

LARSON MICHAEL is a corporate insider at REPUBLIC SERVICES, INC. (RSG) filing SEC Form 4 transactions. 218 transactions across 5 companies, totaling $434,450 in purchases and $0 in sales. Source: SEC EDGAR.

AI Insider Summary

Across his recent activity at Republic Services and Ecolab, the single disposition in Michael Larson's record is a 921-share Ecolab tax withholding on March 4, 2025, priced at $269.173 — not an open-market sale, just the mechanical byproduct of an option exercise. Nothing else in his recent record looks like selling: Republic Services shows zero shares ever bought or sold outside of grants across 104 transactions, and Ecolab's lifetime total sell count (5,250 shares) sits almost entirely outside this recent window. On the buy side, Larson holds real, if sparse, purchase-only positions: 3,000 AutoNation shares (2010-2018, no sales), and two Western Asset closed-end funds — 22,000 shares and 14,000 shares respectively — bought across just three transactions each between 2005 and 2023, with zero shares sold from either.

Two relationships built entirely on accumulation

Republic Services is the clearest example: across 104 transactions since 2009, Larson has never recorded a single share bought or sold outside of routine grants — the relationship's lifetime buy and sell totals both sit at zero. His pattern there is remarkably steady: quarterly awards in the 93-118 share range, plus a larger grant every January 2nd (1,150 shares in January 2025), and a 3,550-share option exercise (two 1,775-share tranches) on January 31, 2025. Ecolab follows a similar shape — quarterly grants of roughly 120-140 shares, a larger annual award each May (810-934 shares), and the occasional larger exercise, like the 4,400-share event (two 2,200-share tranches) in March 2025 that generated the tax withholding above.

Analysis generated by 13F Insight from SEC Form 4 filing data. Methodology
Total Transactions
218
Total Buy Value
$434K
Total Sell Value
$0
Net Activity
+$434K
Last Transaction
Jul 2026
Companies
5

Companies

Transaction History

Source: SEC EDGAR Form 4 insider transaction filings.

Type
Award
Shares
115
Price
-
Value
-
Type
Award
Shares
130
Price
-
Value
-
Type
Award
Shares
732
Price
$247.70
Value
$181K
Type
Award
Shares
118
Price
-
Value
-
Type
Award
Shares
137
Price
-
Value
-
Type
Award
Shares
114
Price
$221.03
Value
$25K
Type
Award
Shares
123
Price
-
Value
-
Type
Award
Shares
95
Price
$241.86
Value
$23K
Type
Award
Shares
126
Price
-
Value
-
Type
Award
Shares
810
Price
-
Value
-
Type
Award
Shares
93
Price
-
Value
-
Type
Award
Shares
134
Price
-
Value
-
Type
Exercise
Shares
2,200
Price
$112.75
Value
$248K
Type
Tax Payment
Shares
921
Price
$269.17
Value
$248K
Type
Exercise
Shares
2,200
Price
$112.75
Value
$248K
Type
Exercise
Shares
1,775
Price
-
Value
-
Type
Exercise
Shares
1,775
Price
-
Value
-
Type
Award
Shares
116
Price
-
Value
-
Type
Award
Shares
1,150
Price
-
Value
-
Type
Award
Shares
143
Price
-
Value
-