Insider · CIK 0001211558
Eric W Gerstenberg
Files at CLH (CLEAN HARBORS INC). First filing Nov 27, 2023, latest Aug 18, 2026.
In brief
Eric W Gerstenberg files SEC Form 4 as CEO at CLH (CLEAN HARBORS INC). Since Nov 27, 2023, Eric W Gerstenberg has reported 0 open-market buys worth $0 and 10 open-market sells worth $10M, the latest filed on Aug 18, 2026.
A track record needs three past buys with six months of prices behind them; Eric W Gerstenberg has 0, so none is measured yet.
The newest scored trade: sold $803k of CLH on Aug 14, 2026, filed Aug 18, 2026, scored 55 (moderate). In the last 12 months: 0 buys worth $0 and 6 sells worth $2.9M.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
CLH: CLEAN HARBORS INC
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 55Moderate | CLEAN HARBORS INC | $803k 2,500 shares | -4% | +60% from low-1% from high | |
| 61Notable | CLEAN HARBORS INC | $700k 2,500 shares | -4% | +54% from low-1% from high | |
| 54Moderate | CLEAN HARBORS INC | $293k 1,000 shares | -2% | +60% from low-2% from high | |
| 54Moderate | CLEAN HARBORS INC | $293k 1,000 shares | -3% | +60% from low-2% from high | |
| 61Notable | CLEAN HARBORS INC | $700k 2,500 shares | -5% | +54% from low-1% from high | |
| 36Weak | CLHsell CLEAN HARBORS INC | $145k 601 shares | -1% | +32% from low-4% from high | |
| 70Notable | CLEAN HARBORS INC | $1.8M 8,076 shares | -14% | +24% from low-14% from high | |
| 65Notable | CLEAN HARBORS INC | $1.5M 6,051 shares | -10% | - | |
| 70Notable | CLEAN HARBORS INC | $2.9M 15,276 shares | -18% | +43% from low-2% from high | |
| 70Notable | CLEAN HARBORS INC | $1.3M 8,000 shares | -10% | +49% from low-7% from high |
Planned sales
Form 144 notices this insider filed before selling restricted or control stock, newest first.
| Filed | Company | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| Aug 14, 2026 | CLH CLEAN HARBORS INC | 2,500 0.00% of outstanding | $805k | Aug 14, 2026 | none |
| Mar 18, 2026 | CLH CLEAN HARBORS INC | 1,000 0.00% of outstanding | $290k | Mar 18, 2026 | $844k |
| Feb 23, 2026 | CLH CLEAN HARBORS INC | 2,500 0.00% of outstanding | $712k | Feb 23, 2026 | $145k |
| Dec 16, 2025 | CLH CLEAN HARBORS INC | 601 0.00% of outstanding | $145k | Dec 15, 2025 | none |
| Jun 6, 2025 | CLH CLEAN HARBORS INC | 8,076 0.01% of outstanding | $1.8M | Jun 6, 2025 | none |
| Nov 18, 2024 | CLH CLEAN HARBORS INC | 6,051 0.01% of outstanding | $1.5M | Nov 15, 2024 | none |
| Mar 15, 2024 | CLH CLEAN HARBORS INC | 15,276 0.03% of outstanding | $2.9M | Mar 15, 2024 | none |
| Nov 22, 2023 | CLH CLEAN HARBORS INC | 8,000 0.01% of outstanding | $1.4M | Nov 21, 2023 | none |
Transactions
Every row this insider has filed, 31 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Aug 14, 2026 | CLH CLEAN HARBORS INC | SOpen-market sale Common Stock | -2,500 | $321.34 | $803k | 56,793 | Aug 18, 2026 |
| Jul 1, 2026 | CLH CLEAN HARBORS INC | FTax withholding Common Stock | -564 | $290.74 | $164k | 59,293 | Aug 14, 2026 |
| Mar 18, 2026 | CLH CLEAN HARBORS INC | SOpen-market sale Common Stock | -1,000 | $293.00 | $293k | 59,857 | Aug 14, 2026 |
| Mar 13, 2026 | CLH CLEAN HARBORS INC | FTax withholding Common Stock | -977 | $288.93 | $282k | 63,023 | Aug 14, 2026 |
| Feb 23, 2026 | CLH CLEAN HARBORS INC | SOpen-market sale Common Stock | -2,500 | $279.86 | $700k | 64,000 | Aug 14, 2026 |
| Mar 13, 2026 | CLH CLEAN HARBORS INC | DDisposition to issuer Common Stock | -2,166 | $0.00 | $0 | 60,857 | Aug 14, 2026 |
| Jul 1, 2026 | CLH CLEAN HARBORS INC | FTax withholding Common Stock | -564 | $290.74 | $164k | 38,313 | Jul 6, 2026 |
| Mar 18, 2026 | CLH CLEAN HARBORS INC | SOpen-market sale Common Stock | -1,000 | $293.00 | $293k | 38,877 | Mar 19, 2026 |
| Mar 13, 2026 | CLH CLEAN HARBORS INC | FTax withholding Common Stock | -977 | $288.93 | $282k | 42,043 | Mar 17, 2026 |
| Mar 13, 2026 | CLH CLEAN HARBORS INC | DDisposition to issuer Common Stock | -2,166 | $0.00 | $0 | 39,877 | Mar 17, 2026 |
| Feb 23, 2026 | CLH CLEAN HARBORS INC | SOpen-market sale Common Stock | -2,500 | $279.86 | $700k | 43,020 | Feb 24, 2026 |
| Feb 2, 2026 | CLH CLEAN HARBORS INC | FTax withholding Common Stock | -4,934 | $259.91 | $1.3M | 45,520 | Feb 3, 2026 |
| Feb 1, 2026 | CLH CLEAN HARBORS INC | AGrant or award Common Stock | +10,290 | $0.00 | $0 | 55,810 | Feb 3, 2026 |
| Feb 1, 2026 | CLH CLEAN HARBORS INC | AGrant or award Common Stock | +10,690 | $0.00 | $0 | 66,500 | Feb 3, 2026 |
| Dec 16, 2025 | CLH CLEAN HARBORS INC | SOpen-market sale Common Stock | -601 | $240.90 | $145k | 50,454 | Dec 17, 2025 |
| Jul 1, 2025 | CLH CLEAN HARBORS INC | FTax withholding Common Stock | -564 | $229.55 | $129k | 51,055 | Jul 3, 2025 |
| Jun 6, 2025 | CLH CLEAN HARBORS INC | SOpen-market sale Common Stock | -8,076 | $225.23 | $1.8M | 51,619 | Jun 9, 2025 |
| Mar 17, 2025 | CLH CLEAN HARBORS INC | FTax withholding Common Stock | -978 | $192.90 | $189k | 64,439 | Apr 2, 2025 |
| Mar 17, 2025 | CLH CLEAN HARBORS INC | DDisposition to issuer Common Stock | -4,744 | $0.00 | $0 | 59,695 | Apr 2, 2025 |
| Mar 17, 2025 | CLH CLEAN HARBORS INC | FTax withholding Common Stock | -978 | $192.90 | $189k | 64,439 | Mar 18, 2025 |
| Feb 1, 2025 | CLH CLEAN HARBORS INC | AGrant or award Common Stock | +11,059 | $0.00 | $0 | 66,716 | Feb 5, 2025 |
| Feb 1, 2025 | CLH CLEAN HARBORS INC | AGrant or award Common Stock | +5,325 | $0.00 | $0 | 72,041 | Feb 5, 2025 |
| Feb 1, 2025 | CLH CLEAN HARBORS INC | FTax withholding Common Stock | -7,434 | $233.00 | $1.7M | 64,607 | Feb 5, 2025 |
| Nov 15, 2024 | CLH CLEAN HARBORS INC | SOpen-market sale Common Stock | -6,051 | $250.42 | $1.5M | 55,657 | Nov 18, 2024 |
| Mar 15, 2024 | CLH CLEAN HARBORS INC | FTax withholding Common Stock | -531 | $187.84 | $100k | 66,843 | Mar 19, 2024 |
| Mar 15, 2024 | CLH CLEAN HARBORS INC | SOpen-market sale Common Stock | -15,276 | $187.71 | $2.9M | 67,374 | Mar 18, 2024 |
| Feb 1, 2024 | CLH CLEAN HARBORS INC | AGrant or award Common Stock | +14,524 | $0.00 | $0 | 83,033 | Feb 5, 2024 |
| Feb 1, 2024 | CLH CLEAN HARBORS INC | AGrant or award Common Stock | +4,332 | $0.00 | $0 | 87,365 | Feb 5, 2024 |
| Feb 1, 2024 | CLH CLEAN HARBORS INC | FTax withholding Common Stock | -4,715 | $172.62 | $814k | 82,650 | Feb 5, 2024 |
| Dec 15, 2023 | CLH CLEAN HARBORS INC | FTax withholding Common Stock | -278 | $174.75 | $49k | 68,509 | Dec 19, 2023 |
| Nov 22, 2023 | CLH CLEAN HARBORS INC | SOpen-market sale Common Stock | -8,000 | $164.82 | $1.3M | 68,787 | Nov 27, 2023 |
Questions about Eric W Gerstenberg
Answered from the filings on this page, as of the latest one.
Is Eric W Gerstenberg buying or selling?
In the last 12 months Eric W Gerstenberg reported 0 open-market buys worth $0 and 6 open-market sells worth $2.9M on SEC Form 4; the latest was sold $803k of CLH on Aug 14, 2026. Grants, option exercises and tax withholding are not counted.
How did Eric W Gerstenberg's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Eric W Gerstenberg has 0.
Where does Eric W Gerstenberg file Form 4?
Eric W Gerstenberg has filed Form 4 at CLH (CLEAN HARBORS INC) as CO-CEO. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.