CLH insider transaction filings
CLEAN HARBORS INC — 50 most recent Form 4 filings from SEC EDGAR, normalized by FilingPulse. Latest filing: 2026-08-18. Screen CLH transaction legs live →
Insider transaction summary — last 90 days
2026-06-24 to 2026-09-22, from the filings listed below: 19 Form 4 filings. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): 5 legs across 5 filings by 3 insiders — 9,577 shares, $2,828,046 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 16.
- Largest priced transaction: sale of 2,500 shares @ $321.34 ($803,350) by GERSTENBERG ERIC W, filed 2026-08-18.
By insider — same window
Open-market purchase/sale legs on non-derivative securities, grouped by the filing's reporting owner(s); joint filings appear once. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Insider | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|
| GERSTENBERG ERIC W — CO-CEO | 6 | — | 3 legs · 6,000 sh · $1,796,000 | 4 |
| Dugas Eric J. — EVP CHIEF FINANCIAL OFFICER | 4 | — | 1 leg · 2,788 sh · $784,292 | 4 |
| Robertson Andrea — Director | 1 | — | 1 leg · 789 sh · $247,754 | — |
| MCKIM ALAN S — EXEC CHAIR, CTO., Director | 2 | — | — | 2 |
| Battles Michael Louis — CO-CEO, Director | 1 | — | — | 1 |
| CURTIS GEORGE L — EXEC. VICE PRESIDENT (CHESI) | 1 | — | — | 1 |
| Gabriel Sharon M. — EVP/CIO (CHESI) | 1 | — | — | 1 |
| Geer Charles H. II — EVP, Industrial Services | 1 | — | — | 1 |
| Underwood Rebecca — PRESIDENT & EVP FACILITIES | 1 | — | — | 1 |
| Weber Brian P — EVP (CHESI) | 1 | — | — | 1 |
Recent Form 4 filings — CLEAN HARBORS INC
| Filed | Form | Insider | Reported transactions | Source |
|---|---|---|---|---|
| 2026-08-18 | 4 | GERSTENBERG ERIC W — CO-CEO | Sale (S): 2,500 @ $321.34 | EDGAR |
| 2026-08-14 | 4/A | GERSTENBERG ERIC W — CO-CEO | Tax withholding (F): 564 @ $290.74 | EDGAR |
| 2026-08-14 | 4/A | GERSTENBERG ERIC W — CO-CEO | Sale (S): 1,000 @ $293 | EDGAR |
| 2026-08-14 | 4/A | GERSTENBERG ERIC W — CO-CEO | Tax withholding (F): 977 @ $288.93 · Disposition to issuer (D): 2,166 @ $0 | EDGAR |
| 2026-08-14 | 4/A | GERSTENBERG ERIC W — CO-CEO | Sale (S): 2,500 @ $279.86 | EDGAR |
| 2026-08-14 | 4/A | Dugas Eric J. — EVP CHIEF FINANCIAL OFFICER | Tax withholding (F): 447 @ $290.74 | EDGAR |
| 2026-08-14 | 4/A | Dugas Eric J. — EVP CHIEF FINANCIAL OFFICER | Tax withholding (F): 630 @ $288.93 · Disposition to issuer (D): 1,324 @ $0 | EDGAR |
| 2026-08-14 | 4/A | Dugas Eric J. — EVP CHIEF FINANCIAL OFFICER | Sale (S): 2,788 @ $281.31 | EDGAR |
| 2026-08-12 | 4 | Battles Michael Louis — CO-CEO, Director | Tax withholding (F): 1,032 @ $290.74 | EDGAR |
| 2026-08-11 | 4 | CURTIS GEORGE L — EXEC. VICE PRESIDENT (CHESI) | Tax withholding (F): 1,757 @ $290.74 | EDGAR |
| 2026-08-03 | 4 | Robertson Andrea — Director | Sale (S): 789 @ $314.01 | EDGAR |
| 2026-07-20 | 4 | MCKIM ALAN S — EXEC CHAIR, CTO., Director | Tax withholding (F): 1,265 @ $310.58 | EDGAR |
| 2026-07-06 | 4 | Geer Charles H. II — EVP, Industrial Services | Tax withholding (F): 40 @ $290.74 | EDGAR |
| 2026-07-06 | 4 | Underwood Rebecca — PRESIDENT & EVP FACILITIES | Tax withholding (F): 311 @ $290.74 | EDGAR |
| 2026-07-06 | 4 | Gabriel Sharon M. — EVP/CIO (CHESI) | Tax withholding (F): 359 @ $290.74 | EDGAR |
| 2026-07-06 | 4 | Dugas Eric J. — EVP CHIEF FINANCIAL OFFICER | Tax withholding (F): 447 @ $290.74 | EDGAR |
| 2026-07-06 | 4 | Weber Brian P — EVP (CHESI) | Tax withholding (F): 814 @ $290.74 | EDGAR |
| 2026-07-06 | 4 | GERSTENBERG ERIC W — CO-CEO | Tax withholding (F): 564 @ $290.74 | EDGAR |
| 2026-07-06 | 4 | MCKIM ALAN S — EXEC CHAIR, CTO., Director | Tax withholding (F): 1,343 @ $290.74 | EDGAR |
| 2026-06-03 | 4 | Diderich Jeroen — EVP&President of Sales&Service | Tax withholding (F): 1,717 @ $281 | EDGAR |
| 2026-05-27 | 4 | States Lauren — Director | Sale (S): 789 @ $286.19 | EDGAR |
| 2026-05-22 | 4 | PRESTON JOHN T — Director | Grant/award (A): 652 @ $0 | EDGAR |
| 2026-05-22 | 4 | Polito Karyn — Director | Grant/award (A): 652 @ $0 | EDGAR |
| 2026-05-22 | 4 | Reed Marcy L. — Director | Grant/award (A): 652 @ $0 | EDGAR |
| 2026-05-22 | 4 | States Lauren — Director | Grant/award (A): 652 @ $0 | EDGAR |
| 2026-05-22 | 4 | Welch John R. — Director | Grant/award (A): 652 @ $0 | EDGAR |
| 2026-05-22 | 4 | Quirk Alison A. — Director | Grant/award (A): 652 @ $0 | EDGAR |
| 2026-05-22 | 4 | Stewart Shelley JR — Director | Grant/award (A): 652 @ $0 | EDGAR |
| 2026-05-22 | 4 | Willett Robert — Director | Grant/award (A): 652 @ $0 | EDGAR |
| 2026-05-22 | 4 | Robertson Andrea — Director | Grant/award (A): 652 @ $0 | EDGAR |
| 2026-05-22 | 4 | GALANTE EDWARD G — Director | Grant/award (A): 652 @ $0 | EDGAR |
| 2026-05-14 | 4/A | Polito Karyn — Director | Purchase (P): 460 @ $295.13 | EDGAR |
| 2026-05-13 | 4 | Polito Karyn — Director | Grant/award (A): 460 @ $295.13 | EDGAR |
| 2026-05-12 | 4 | Robertson Andrea — Director | Gift (G): 342 @ $0 | EDGAR |
| 2026-03-19 | 4 | Reed Marcy L. — Director | Sale (S): 836 @ $287.94 | EDGAR |
| 2026-03-19 | 4 | GERSTENBERG ERIC W — CO-CEO | Sale (S): 1,000 @ $293 | EDGAR |
| 2026-03-17 | 4 | Geer Charles H. II — EVP, Industrial Services | Disposition to issuer (D): 139 @ $0 | EDGAR |
| 2026-03-17 | 4 | Underwood Rebecca — PRESIDENT & EVP FACILITIES | Tax withholding (F): 125 @ $288.93 · Disposition to issuer (D): 1,401 @ $0 | EDGAR |
| 2026-03-17 | 4 | Harrison Robert W. — EVP, EHS | Tax withholding (F): 18 @ $288.93 · Disposition to issuer (D): 368 @ $0 | EDGAR |
| 2026-03-17 | 4 | Gabriel Sharon M. — EVP/CIO (CHESI) | Tax withholding (F): 727 @ $288.93 · Disposition to issuer (D): 1,401 @ $0 | EDGAR |
| 2026-03-17 | 4 | Dugas Eric J. — EVP CHIEF FINANCIAL OFFICER | Tax withholding (F): 630 @ $288.93 · Disposition to issuer (D): 1,324 @ $0 | EDGAR |
| 2026-03-17 | 4 | Battles Michael Louis — CO-CEO, Director | Tax withholding (F): 1,148 @ $288.93 · Disposition to issuer (D): 2,166 @ $0 | EDGAR |
| 2026-03-17 | 4 | Weber Brian P — EVP (CHESI) | Tax withholding (F): 960 @ $288.93 · Disposition to issuer (D): 1,869 @ $0 · Sale (S): 4,683 @ $293.39 | EDGAR |
| 2026-03-17 | 4 | CURTIS GEORGE L — EXEC. VICE PRESIDENT (CHESI) | Tax withholding (F): 350 @ $288.93 · Disposition to issuer (D): 1,028 @ $0 | EDGAR |
| 2026-03-17 | 4 | GERSTENBERG ERIC W — CO-CEO | Tax withholding (F): 977 @ $288.93 · Disposition to issuer (D): 2,166 @ $0 | EDGAR |
| 2026-03-17 | 4 | MCKIM ALAN S — EXEC CHAIR, CTO., Director | Tax withholding (F): 1,265 @ $288.93 | EDGAR |
| 2026-03-05 | 4 | MCKIM ALAN S — EXEC CHAIR, CTO., Director | Sale (S): 100,000 @ $292.65 | EDGAR |
| 2026-02-24 | 4 | GERSTENBERG ERIC W — CO-CEO | Sale (S): 2,500 @ $279.86 | EDGAR |
| 2026-02-23 | 4 | MCKIM ALAN S — EXEC CHAIR, CTO., Director | Sale (S): 100,000 @ $281.14 · Gift (G): 10,000 @ $0 | EDGAR |
| 2026-02-20 | 4 | Welch John R. — Director | Sale (S): 750 @ $273.07 | EDGAR |
Recent 8-K events — CLEAN HARBORS INC
| Filed | Form | Items reported | Source |
|---|---|---|---|
| 2026-09-18 | 8-K | 8.01 — Other Events 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-08-12 | 8-K | 8.01 — Other Events 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-07-29 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-05-20 | 8-K | 5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers 7.01 — Regulation FD Disclosure 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-05-20 | 8-K | 5.07 — Submission of Matters to a Vote of Security Holders 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-05-14 | 8-K | 8.01 — Other Events 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-05-06 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-02-18 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-10-29 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-10-10 | 8-K | 1.01 — Entry into a Material Definitive Agreement 2.03 — Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant 9.01 — Financial Statements and Exhibits | EDGAR |
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