ERIC W GERSTENBERG

CIK 1211558 · CO-CEO · last filed 2026-07-06

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure

$11.81M

Companies

2

Total Filings

135

Lifetime Open-Market Net

-$21.90M

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
CLH CO-CEO 38,313 $308.17 $11.81M $0 1 2026-07-06
CLHB CO-CEO 38,877 -$21.90M 127 2026-03-19

Recent Filings · Page 3 of 14

135 filings
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2024-03-19 CLHB Tax (F) −531 -$99.7K EDGAR
2024-03-18 CLHB Sell (S) −15,276 -$2.87M EDGAR
2024-03-15 CLH Notice (144) −15,276 -$2.86M EDGAR
2024-02-05 CLHB Mixed +14,141 -$813.9K EDGAR
2023-12-19 CLHB Tax (F) −278 -$48.6K EDGAR
2023-11-27 CLHB Sell (S) −8,000 -$1.32M EDGAR
2023-11-22 CLH Notice (144) −8,000 -$1.35M EDGAR
2023-09-07 CLHB Tax (F) −740 -$128.3K EDGAR
2023-09-06 CLHB Tax (F) −1,667 -$289.0K EDGAR
2023-07-06 CLHB Sell (S) −9,725 -$1.60M EDGAR
Showing 2130 of 135
Page 3 of 14
Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.