CLH
insider transactionsCLEAN HARBORS INC — buys & sells by directors, officers and 10% owners A shareholder owning more than 10% of the company. Must report trades, but usually a weaker signal than an officer or director. (SEC Form 4).
Net shares · 90d
-329
460 buy · 789 sell
Net value · 90d
-$90.0K
$135.8K in · $225.8K out
Sentiment · 90d
Net selling
38% buying · 62% selling
Open-market trades · 90d
2
460 buy · 789 sell
Net buy / sell volume
Not enough data to chart yet.
Tap or hover the chart for daily net volume. Green = net buying, red = net selling.
All transactions
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Other·F
Jeroen Diderich KEY
EVP&President of Sales&Service
$482.5K
1.7K sh · $281.00
Own -10%
-
Sell·S
Director
$225.8K
789 sh · $286.19
Own -6%
-
Grant·A
Director
$0
652 sh
Own +19%
-
Grant·A
Director
$0
652 sh
Own +13%
-
Grant·A
Director
$0
652 sh
Own +6%
-
Grant·A
Director
$0
652 sh
Own +6%
-
Grant·A
Director
$0
652 sh
Own +22%
-
Grant·A
Director
$0
652 sh
Own +17%
-
Grant·A
Director
$0
652 sh
Own +7%
-
Grant·A
Director
$0
652 sh
Own +7%
-
Grant·A
Director
$0
652 sh
Own +3%
-
Grant·A
Director
$0
652 sh
Own +10%
-
Other·G
Director
$0
342 sh
Own -4%
-
Grant·A
Director
$135.8K
460 sh · $295.13
Own +15%
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Buy·P
Director
$135.8K
460 sh · $295.13
Own +15%
| Date▾ | Insider | Type | Shares | Value |
|---|---|---|---|---|
| Jun 1, 2026 | Jeroen Diderich KEY | Other F | 1.7K | $482.5K |
| May 26, 2026 | Lauren States | Sell S | 789 | $225.8K |
| May 20, 2026 | Karyn Polito | Grant A | 652 | $0 |
| May 20, 2026 | Marcy L. Reed | Grant A | 652 | $0 |
| May 20, 2026 | Lauren States | Grant A | 652 | $0 |
| May 20, 2026 | John R. Welch | Grant A | 652 | $0 |
| May 20, 2026 | Alison A. Quirk | Grant A | 652 | $0 |
| May 20, 2026 | Shelley Stewart JR | Grant A | 652 | $0 |
| May 20, 2026 | Robert Willett | Grant A | 652 | $0 |
| May 20, 2026 | Andrea Robertson | Grant A | 652 | $0 |
| May 20, 2026 | Edward G Galante | Grant A | 652 | $0 |
| May 20, 2026 | John T Preston | Grant A | 652 | $0 |
| May 11, 2026 | Andrea Robertson | Other G | 342 | $0 |
| May 11, 2026 | Karyn Polito | Grant A | 460 | $135.8K |
| May 11, 2026 | Karyn Polito | Buy P | 460 | $135.8K |
About CLH insider trading
This page tracks insider transactions for CLEAN HARBORS INC (CLH) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.