GERSTENBERG ERIC W

PrivateCIK: 1211558
Location

KINGSTON, MA

GERSTENBERG ERIC W (Chief Operating Officer(CHESI)) sold 2.5% of their position (1K shares) of CLEAN HARBORS INC on the open market

Open‑market sale worth $293.0K — 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
-1K
Net shares
Net seller
$293.0K
Total sold
1
Open market trades
0B · 1S
1
Total transactions
1K disposed
Non-Derivative Transactions1

Common Stock

Direct
S · Sale

Shares

1K

Price / share

$293.00

Trade value

$293K

% of position

2.5%
3/18/2026
39.88K38.88K
Total

Net shares

1K

Net value

-$293K

Derivative Transactions0
No derivative transactions reported
GERSTENBERG ERIC W — Insider Transaction (Form 4) Filed Mar 19, 2026 | Finecho