GERSTENBERG ERIC W

PrivateCIK: 1211558
Location

KINGSTON, MA

GERSTENBERG ERIC W (Chief Operating Officer(CHESI)) sold 4.2% of their position (2.50K shares) of CLEAN HARBORS INC on the open market

Open‑market sale worth $803.3K — a minor trim. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale
InsiderGERSTENBERG ERIC WCIK 1211558
IssuerCLEAN HARBORS INCCIK 822818
Officer· Chief Operating Officer(CHESI)
Since Jul 2018
-2.50K
Net shares
Net seller
$803.3K
Total sold
1
Open market trades
0B · 1S
1
Total transactions
2.50K disposed
Non-Derivative Transactions1

Common Stock

Direct
S · Sale

Shares

2.50K

Price / share

$321.34

Trade value

$803.35K

% of position

4.2%
8/14/2026
59.29K56.79K
Total

Net shares

2.50K

Net value

-$803.35K

Derivative Transactions0
No derivative transactions reported