CLH — CLEAN HARBORS INC
Price · 2024-08-26 → 2026-08-21
499 daily closes shownAnonymous view is capped at two years of history. A free account extends it to five, and Pro opens the whole archive back to 2016-01-04.
Performance
Technicals
Measured signals that fired on CLH
| date | signal | measured base rate |
|---|---|---|
| 2026-07-29 | Breakout to a 52-week high price | -1.00% over 21 days · t = -8.58 · n = 24,386 statistically distinguishable from its control group |
| 2026-07-29 | Fair value gap, bullish structure | -0.67% over 21 days · t = -6.43 · n = 111,973 statistically distinguishable from its control group |
| 2026-07-20 | Equal highs taken out structure | -0.70% over 21 days · t = -8.28 · n = 68,636 statistically distinguishable from its control group |
| 2026-07-14 | Bollinger bandwidth breaks out of its own compression structure | -0.63% over 21 days · t = -2.80 · n = 7,196 statistically distinguishable from its control group |
| 2026-06-25 | Fair value gap, bullish structure | -0.67% over 21 days · t = -6.43 · n = 111,973 statistically distinguishable from its control group |
| 2026-06-02 | Equal lows taken out structure | -0.64% over 21 days · t = -4.75 · n = 55,661 statistically distinguishable from its control group |
Excess return against a matched control group, on a point-in-time universe that includes delisted companies. Most families do not survive that. How the measurement works →
Insider transactions (Form 4)
| date | insider | what | shares | price | value |
|---|---|---|---|---|---|
| 2026-08-14 | GERSTENBERG ERIC W CO-CEO | Open-market sale | 2.5K | 321.34 | 803.4K |
| 2026-08-03 | Robertson Andrea Director | Open-market sale | 789 | 314.01 | 247.8K |
| 2026-07-17 | MCKIM ALAN S EXEC CHAIR, CTO. | Shares withheld for tax | 1.3K | 310.58 | 392.9K |
| 2026-07-01 | CURTIS GEORGE L EXEC. VICE PRESIDENT (CHESI) | Shares withheld for tax | 1.8K | 290.74 | 510.8K |
| 2026-07-01 | MCKIM ALAN S EXEC CHAIR, CTO. | Shares withheld for tax | 1.3K | 290.74 | 390.5K |
| 2026-07-01 | Battles Michael Louis CO-CEO | Shares withheld for tax | 1.0K | 290.74 | 300.0K |
| 2026-07-01 | Weber Brian P EVP (CHESI) | Shares withheld for tax | 814 | 290.74 | 236.7K |
| 2026-07-01 | GERSTENBERG ERIC W CO-CEO | Shares withheld for tax | 564 | 290.74 | 164.0K |
| 2026-07-01 | GERSTENBERG ERIC W CO-CEO | Shares withheld for tax | 564 | 290.74 | 164.0K |
| 2026-07-01 | Dugas Eric J. EVP CHIEF FINANCIAL OFFICER | Shares withheld for tax | 447 | 290.74 | 130.0K |
Open-market purchases (code P) are the informative ones. Grants, option exercises and tax withholding are compensation mechanics, not decisions. How to read a Form 4 →
Largest institutional holders
| manager | value | shares |
|---|---|---|
| BlackRock, Inc. | 1.4B | 4.8M |
| WELLINGTON MANAGEMENT GROUP LLP | 1.0B | 3.6M |
| JANUS HENDERSON GROUP PLC | 675.4M | 2.4M |
| VANGUARD CAPITAL MANAGEMENT LLC | 622.0M | 2.2M |
| FMR LLC | 602.5M | 2.1M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 562.8M | 2.0M |
| LONE PINE CAPITAL LLC | 503.2M | 1.8M |
| STATE STREET CORP | 440.8M | 1.5M |
| D1 Capital Partners L.P. | 383.7M | 1.3M |
| Pictet Asset Management Holding SA | 356.1M | 1.2M |
13F positions as of 2026-03-31, filed up to 45 days after quarter end. Long-only US equity — shorts and derivatives never appear. What 13F does and does not show →
Latest SEC filings
| form | filed | period | |
|---|---|---|---|
| 4 | 2026-08-18 | 2026-08-14 | on EDGAR ↗ |
| 144 | 2026-08-14 | — | on EDGAR ↗ |
| 4/A | 2026-08-14 | 2026-07-01 | on EDGAR ↗ |
| 4/A | 2026-08-14 | 2026-03-18 | on EDGAR ↗ |
| 4/A | 2026-08-14 | 2026-03-13 | on EDGAR ↗ |
| 4/A | 2026-08-14 | 2026-02-23 | on EDGAR ↗ |
| 4/A | 2026-08-14 | 2026-07-01 | on EDGAR ↗ |
| 4/A | 2026-08-14 | 2026-03-13 | on EDGAR ↗ |
Short selling
This is off-exchange short volume, not short interest: it is flow, not position, and 40–50% is normal because market makers short to fill your buy. Why that number misleads →
Recent headlines
- CLEAN HARBORS INC (CLH) filed form 4 · 2026-08-18 · SEC EDGAR
- Clean Harbors Inc (CLH) filed form 8-K · 2026-08-12 · SEC EDGAR
- Clean Harbors to buy EnviroServe in $470M deal · 2026-08-12
- Clean Harbors To Buy EnviroServe For $470 Mln In Cash · 2026-08-12
- Stronger Earnings, Guidance and Western Oil Deal Could Be A Game Changer For Clean Harbors (CLH) - simplywall.st · 2026-08-11 · simplywall.st
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