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CLH

CLEAN HARBORS INC

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Tapewire entity
3318
SEC CIK
0000822818
Parsed reports
955

Last 12 months

Inside the activity.

1 purchase rows · 16 sale rows

Disclosed non-derivative P/S rows, by transaction month. Includes amendments and private transactions.
Monthly counts
MonthPurchasesSales
Nov 202500
Dec 202501
Jan 202600
Feb 202607
Mar 202605
Apr 202600
May 202611
Jun 202600
Jul 202600
Aug 202602
Sep 202600
Oct 202600

Latest available

Insider transactions

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateOwner / reported roleActivity / securityShares / unitsReported priceReported valueDetails
November 13, 2025 Filed Nov 14, 2025 15:37 UTC GiftCommon Stock 245 $0.00 $0.00
Disclosure

SEC source: 0001670022-25-000005 · form4-11142025_031123.xml · nonDerivative · entry 1

States Lauren · CIK 0001670022 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,496

F1 · shares: Charitable gift

Read SEC document
November 01, 2025 Filed Nov 4, 2025 13:19 UTC
Geer Charles H. IIEVP, Industrial Services
Tax withholdingCommon Stock 294 $210.51 $61,889.94
Disclosure

SEC source: 0002079092-25-000002 · form4-11042025_011100.xml · nonDerivative · entry 1

Geer Charles H. II · CIK 0002079092 · EVP, Industrial Services

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,842

F1 · shares: Payment of tax liability by withholding of securities incident to vesting of securities in accordance with Rule 16b3.

Read SEC document
September 16, 2025 Filed Sep 17, 2025 16:12 UTC
MCKIM ALAN SDirector · EXEC CHAIR, CTO.
GiftCommon Stock 4,283 $0.00 $0.00
Disclosure

SEC source: 0001024547-25-000004 · form4-09172025_040949.xml · nonDerivative · entry 2

MCKIM ALAN S · CIK 0001024547 · Director · EXEC CHAIR, CTO.

10b5-1 filing: No plan indicated

Ownership: Indirect · McKim 2007 Trust

Disclosed balance after: 2,342,461

Read SEC document
September 16, 2025 Filed Sep 17, 2025 16:12 UTC
MCKIM ALAN SDirector · EXEC CHAIR, CTO.
GiftCommon Stock 8,567 $0.00 $0.00
Disclosure

SEC source: 0001024547-25-000004 · form4-09172025_040949.xml · nonDerivative · entry 1

MCKIM ALAN S · CIK 0001024547 · Director · EXEC CHAIR, CTO.

10b5-1 filing: No plan indicated

Ownership: Indirect · McKim 2007 Trust

Disclosed balance after: 2,346,744

Read SEC document
August 05, 2025 Filed Aug 6, 2025 14:56 UTC GiftCommon Stock 430 $0.00 $0.00
Disclosure

SEC source: 0001415889-25-021151 · form4-08062025_020823.xml · nonDerivative · entry 1

Robertson Andrea · CIK 0001295248 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,458

F1 · kind: Charitable gift.

Read SEC document
August 01, 2025 Filed Aug 4, 2025 18:59 UTC
Battles Michael LouisDirector · CO-CEO
PurchaseCommon Stock 2,000 $233.50 $467,000.00
Disclosure

SEC source: 0001415889-25-020927 · form4-08042025_060840.xml · nonDerivative · entry 1

Battles Michael Louis · CIK 0001379357 · Director · CO-CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 82,911

Read SEC document
July 31, 2025 Filed Aug 4, 2025 19:01 UTC SaleCommon Stock 836 $233.64 $195,323.04
Disclosure

SEC source: 0001415889-25-020929 · form4-08042025_070815.xml · nonDerivative · entry 1

Robertson Andrea · CIK 0001295248 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,888

Read SEC document
July 01, 2025 Filed Jul 3, 2025 18:55 UTC
Underwood RebeccaPRESIDENT & EVP FACILITIES
Tax withholdingCommon Stock 1,051 $229.55 $241,257.05
Disclosure

SEC source: 0001415889-25-019286 · form4-07032025_060722.xml · nonDerivative · entry 1

Underwood Rebecca · CIK 0001990612 · PRESIDENT & EVP FACILITIES

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,335

F1 · shares: Payment of tax liability by withholding of securities incident to vesting of securities in accordance with Rule 16b3.

Read SEC document
July 01, 2025 Filed Jul 3, 2025 18:54 UTC
Battles Michael LouisDirector · CO-CEO
Tax withholdingCommon Stock 1,532 $229.55 $351,670.60
Disclosure

SEC source: 0001415889-25-019284 · form4-07032025_060724.xml · nonDerivative · entry 1

Battles Michael Louis · CIK 0001379357 · Director · CO-CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 80,911

F1 · shares: Payment of tax liability by withholding of securities incident to vesting of securities in accordance with Rule 16b3.

F2 · balance_after: Includes 14 shares acquired under the Clean Harbors Employee Stock Purchase Plan on 6/30/2025.

Read SEC document
July 01, 2025 Filed Jul 3, 2025 18:53 UTC Tax withholdingCommon Stock 564 $229.55 $129,466.20
Disclosure

SEC source: 0001415889-25-019282 · form4-07032025_060725.xml · nonDerivative · entry 1

GERSTENBERG ERIC W · CIK 0001211558 · CO-CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 51,055

F1 · shares: Payment of tax liability by withholding of securities incident to vesting of securities in accordance with Rule 16b3.

Read SEC document
July 01, 2025 Filed Jul 3, 2025 18:52 UTC
CURTIS GEORGE LEXEC. VICE PRESIDENT (CHESI)
Tax withholdingCommon Stock 399 $229.55 $91,590.45
Disclosure

SEC source: 0001415889-25-019280 · form4-07032025_060736.xml · nonDerivative · entry 1

CURTIS GEORGE L · CIK 0001216581 · EXEC. VICE PRESIDENT (CHESI)

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 48,664

F1 · shares: Payment of tax liability by withholding of securities incident to vesting of securities in accordance with Rule 16b3.

F2 · balance_after: Includes 11 shares acquired under the Clean Harbors Employee Stock Purchase Plan on 6/30/2025

Read SEC document
July 01, 2025 Filed Jul 3, 2025 18:51 UTC
Gabriel Sharon M.EVP/CIO (CHESI)
Tax withholdingCommon Stock 525 $229.55 $120,513.75
Disclosure

SEC source: 0001415889-25-019278 · form4-07032025_060730.xml · nonDerivative · entry 1

Gabriel Sharon M. · CIK 0001756568 · EVP/CIO (CHESI)

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,766

F1 · shares: Payment of tax liability by withholding of securities incident to vesting of securities in accordance with Rule 16b3.

Read SEC document
July 01, 2025 Filed Jul 3, 2025 15:50 UTC
Weber Brian PEVP (CHESI)
Tax withholdingCommon Stock 1,136 $229.55 $260,768.80
Disclosure

SEC source: 0001415889-25-019217 · form4-07032025_030737.xml · nonDerivative · entry 1

Weber Brian P · CIK 0001322710 · EVP (CHESI)

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 53,412

F1 · shares: Payment of tax liability by withholding of securities incident to vesting of securities in accordance with Rule 16b3.

Read SEC document
July 01, 2025 Filed Jul 3, 2025 15:11 UTC
Dugas Eric J.EVP CHIEF FINANCIAL OFFICER
Tax withholdingCommon Stock 613 $229.55 $140,714.15
Disclosure

SEC source: 0001415889-25-019209 · form4-07032025_030704.xml · nonDerivative · entry 1

Dugas Eric J. · CIK 0001663307 · EVP CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,288

F1 · shares: Payment of tax liability by withholding of securities incident to vesting of securities in accordance with Rule 16b3.

Read SEC document
July 01, 2025 Filed Jul 3, 2025 14:18 UTC
MCKIM ALAN SDirector · EXEC CHAIR, CTO.
Tax withholdingCommon Stock 1,342 $229.55 $308,056.10
Disclosure

SEC source: 0001415889-25-019202 · form4-07032025_020720.xml · nonDerivative · entry 1

MCKIM ALAN S · CIK 0001024547 · Director · EXEC CHAIR, CTO.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,027

F1 · shares: Payment of tax liability by withholding of securities incident to vesting of securities in accordance with Rule 16b3.

Read SEC document
June 13, 2025 Filed Jun 16, 2025 13:07 UTC
Weber Brian PEVP (CHESI)
SaleCommon Stock 3,035 $227.17 $689,460.95
Disclosure

SEC source: 0001415889-25-017343 · form4-06162025_010652.xml · nonDerivative · entry 1

Weber Brian P · CIK 0001322710 · EVP (CHESI)

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 54,548

Read SEC document
June 06, 2025 Filed Jun 9, 2025 16:59 UTC SaleCommon Stock 8,076 $225.23 $1,818,957.48
Disclosure

SEC source: 0001415889-25-016173 · form4-06092025_040645.xml · nonDerivative · entry 1

GERSTENBERG ERIC W · CIK 0001211558 · CO-CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 51,619

Read SEC document
June 05, 2025 Filed Jun 6, 2025 15:57 UTC
MCKIM ALAN SDirector · EXEC CHAIR, CTO.
SaleCommon Stock 58,156 $223.80 $13,015,312.80
Disclosure

SEC source: 0001415889-25-015892 · form4-06062025_030648.xml · nonDerivative · entry 5

MCKIM ALAN S · CIK 0001024547 · Director · EXEC CHAIR, CTO.

10b5-1 filing: No plan indicated

Ownership: Indirect · McKim 2007 Trust

Disclosed balance after: 2,297,896

Read SEC document
June 05, 2025 Filed Jun 6, 2025 12:39 UTC SaleCommon Stock 893 $223.69 $199,755.17
Disclosure

SEC source: 0001415889-25-015879 · form4-06062025_120616.xml · nonDerivative · entry 1

Quirk Alison A. · CIK 0001485499 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,978

Read SEC document
June 04, 2025 Filed Jun 6, 2025 15:57 UTC
MCKIM ALAN SDirector · EXEC CHAIR, CTO.
SaleCommon Stock 41,844 $225.40 $9,431,637.60
Disclosure

SEC source: 0001415889-25-015892 · form4-06062025_030648.xml · nonDerivative · entry 1

MCKIM ALAN S · CIK 0001024547 · Director · EXEC CHAIR, CTO.

10b5-1 filing: No plan indicated

Ownership: Indirect · McKim 2007 Trust

Disclosed balance after: 2,356,052

Read SEC document
June 02, 2025 Filed Jun 3, 2025 19:25 UTC
Dugas Eric J.EVP CHIEF FINANCIAL OFFICER
Tax withholdingCommon Stock 806 $226.79 $182,792.74
Disclosure

SEC source: 0001415889-25-015349 · form4-06032025_070645.xml · nonDerivative · entry 1

Dugas Eric J. · CIK 0001663307 · EVP CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,901

F1 · shares: Payment of tax liability by withholding of securities incident to vesting of securities in accordance with Rule 16b3.

Read SEC document
June 02, 2025 Filed Jun 3, 2025 19:24 UTC
Diderich JeroenEVP&President of Sales&Service
Tax withholdingCommon Stock 1,540 $226.79 $349,256.60
Disclosure

SEC source: 0001415889-25-015347 · form4-06032025_070637.xml · nonDerivative · entry 1

Diderich Jeroen · CIK 0002025402 · EVP&President of Sales&Service

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,772

F1 · shares: Payment of tax liability by withholding of securities incident to vesting of securities in accordance with Rule 16b3.

Read SEC document
May 28, 2025 Filed May 29, 2025 12:42 UTC SaleCommon Stock 1,250 $228.51 $285,637.50
Disclosure

SEC source: 0001415889-25-014778 · form4-05292025_120532.xml · nonDerivative · entry 1

Welch John R. · CIK 0001611303 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,402

Read SEC document
May 27, 2025 Filed May 28, 2025 16:29 UTC
Speights RobertPRESIDENT, INDUSTRIAL SERVICES
SaleCommon Stock 1,022 $228.49 $233,516.78
Disclosure

SEC source: 0001415889-25-014679 · form4-05282025_040516.xml · nonDerivative · entry 1

Speights Robert · CIK 0001756200 · PRESIDENT, INDUSTRIAL SERVICES

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,310

Read SEC document
May 27, 2025 Filed May 28, 2025 12:39 UTC GiftCommon Stock 130 $0.00 $0.00
Disclosure

SEC source: 0001415889-25-014672 · form4-05282025_120514.xml · nonDerivative · entry 1

States Lauren · CIK 0001670022 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,741

F1 · shares: Charitable Gift.

Read SEC document
May 22, 2025 Filed May 23, 2025 16:26 UTC SaleCommon Stock 836 $226.17 $189,078.12
Disclosure

SEC source: 0001415889-25-014387 · form4-05232025_040516.xml · nonDerivative · entry 2

States Lauren · CIK 0001670022 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,871

Read SEC document
May 21, 2025 Filed May 23, 2025 19:17 UTC GrantCommon Stock 789 $0.00 $0.00
Disclosure

SEC source: 0001415889-25-014407 · form4-05232025_070516.xml · nonDerivative · entry 1

Quirk Alison A. · CIK 0001485499 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,871

F1 · shares: Award of restricted stock to non-employee director vesting 100% upon the date of the next annual meeting of shareholders.

Read SEC document
May 21, 2025 Filed May 23, 2025 19:15 UTC
Polito KarynDirector
GrantCommon Stock 789 $0.00 $0.00
Disclosure

SEC source: 0001415889-25-014405 · form4-05232025_070542.xml · nonDerivative · entry 1

Polito Karyn · CIK 0001965457 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,015

F1 · shares: Award of restricted stock to non-employee director vesting 100% upon the date of the next annual meeting of shareholders.

Read SEC document
May 21, 2025 Filed May 23, 2025 16:26 UTC GrantCommon Stock 789 $0.00 $0.00
Disclosure

SEC source: 0001415889-25-014387 · form4-05232025_040516.xml · nonDerivative · entry 1

States Lauren · CIK 0001670022 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,707

F1 · shares: Award of restricted stock to non-employee director vesting 100% upon the date of the next annual meeting of shareholders.

Read SEC document
May 21, 2025 Filed May 23, 2025 16:15 UTC GrantCommon Stock 789 $0.00 $0.00
Disclosure

SEC source: 0001415889-25-014383 · form4-05232025_040553.xml · nonDerivative · entry 1

Welch John R. · CIK 0001611303 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,652

F1 · shares: Award of restricted stock to non-employee director vesting 100% upon the date of the next annual meeting of shareholders.

Read SEC document
May 21, 2025 Filed May 23, 2025 16:12 UTC GrantCommon Stock 789 $0.00 $0.00
Disclosure

SEC source: 0001415889-25-014379 · form4-05232025_040515.xml · nonDerivative · entry 1

Robertson Andrea · CIK 0001295248 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,724

F1 · shares: Award of restricted stock to non-employee director vesting 100% upon the date of the next annual meeting of shareholders.

Read SEC document
May 21, 2025 Filed May 23, 2025 16:11 UTC GrantCommon Stock 789 $0.00 $0.00
Disclosure

SEC source: 0001415889-25-014377 · form4-05232025_040510.xml · nonDerivative · entry 1

Reed Marcy L. · CIK 0001883932 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,917

F1 · shares: Award of restricted stock to non-employee director vesting 100% upon the date of the next annual meeting of shareholders.

Read SEC document
May 21, 2025 Filed May 23, 2025 16:14 UTC GrantCommon Stock 789 $0.00 $0.00
Disclosure

SEC source: 0001415889-25-014381 · form4-05232025_040540.xml · nonDerivative · entry 1

Stewart Shelley JR · CIK 0001444506 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,871

F1 · shares: Award of restricted stock to non-employee director vesting 100% upon the date of the next annual meeting of shareholders.

Read SEC document
May 21, 2025 Filed May 23, 2025 16:07 UTC GrantCommon Stock 789 $0.00 $0.00
Disclosure

SEC source: 0001415889-25-014373 · form4-05232025_040550.xml · nonDerivative · entry 1

GALANTE EDWARD G · CIK 0001199009 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,809

F1 · shares: Award of restricted stock to non-employee director vesting 100% upon the date of the next annual meeting of shareholders.

Read SEC document
May 21, 2025 Filed May 23, 2025 16:06 UTC GrantCommon Stock 789 $0.00 $0.00
Disclosure

SEC source: 0001415889-25-014371 · form4-05232025_040506.xml · nonDerivative · entry 1

Willett Robert · CIK 0001438093 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,376

F1 · shares: Award of restricted stock to non-employee director vesting 100% upon the date of the next annual meeting of shareholders.

Read SEC document
May 21, 2025 Filed May 23, 2025 16:10 UTC GrantCommon Stock 789 $0.00 $0.00
Disclosure

SEC source: 0001415889-25-014375 · form4-05232025_040502.xml · nonDerivative · entry 1

PRESTON JOHN T · CIK 0000938731 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,392

F1 · shares: Award of restricted stock to non-employee director vesting 100% upon the date of the next annual meeting of shareholders.

Read SEC document
May 02, 2025 Filed May 2, 2025 20:33 UTC
Speights RobertPRESIDENT, INDUSTRIAL SERVICES
Disposition to issuerCommon Stock 16,612 $0.00 $0.00
Disclosure

SEC source: 0001415889-25-011827 · form4-05022025_080546.xml · nonDerivative · entry 1

Speights Robert · CIK 0001756200 · PRESIDENT, INDUSTRIAL SERVICES

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,332

F1 · kind: Forfeiture of unvested time-based and performance-based stock grants upon cessation of employment on May 2, 2025.

Read SEC document
April 01, 2025 Filed Apr 3, 2025 12:26 UTC
CURTIS GEORGE LEXEC. VICE PRESIDENT (CHESI)
GrantCommon Stock 2,000 $0.00 $0.00
Disclosure

SEC source: 0001415889-25-009822 · form4-04032025_120436.xml · nonDerivative · entry 1

CURTIS GEORGE L · CIK 0001216581 · EXEC. VICE PRESIDENT (CHESI)

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 49,052

F1 · shares: Restricted Share Award vesting as to 100% on April 1, 2026.

Read SEC document
March 17, 2025 Filed Mar 18, 2025 20:16 UTC
Underwood RebeccaPRESIDENT & EVP FACILITIES
Tax withholdingCommon Stock 176 $192.90 $33,950.40
Disclosure

SEC source: 0001415889-25-008394 · form4-03182025_080355.xml · nonDerivative · entry 1

Underwood Rebecca · CIK 0001990612 · PRESIDENT & EVP FACILITIES

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,386

F1 · shares: Payment of tax liability by withholding of securities incident to vesting of securities in accordance with Rule 16b3.

Read SEC document
March 17, 2025 Filed Mar 18, 2025 20:14 UTC Tax withholdingCommon Stock 35 $192.90 $6,751.50
Disclosure

SEC source: 0001415889-25-008378 · form4-03182025_080348.xml · nonDerivative · entry 1

Harrison Robert W. · CIK 0001954916 · EVP, EHS

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,923

F1 · shares: Payment of tax liability by withholding of securities incident to vesting of securities in accordance with Rule 16b3.

Read SEC document
March 17, 2025 Filed Mar 18, 2025 20:13 UTC
Dugas Eric J.EVP CHIEF FINANCIAL OFFICER
Tax withholdingCommon Stock 631 $192.90 $121,719.90
Disclosure

SEC source: 0001415889-25-008374 · form4-03182025_080350.xml · nonDerivative · entry 1

Dugas Eric J. · CIK 0001663307 · EVP CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,607

F1 · shares: Payment of tax liability by withholding of securities incident to vesting of securities in accordance with Rule 16b-3.

Read SEC document
March 17, 2025 Filed Mar 18, 2025 20:12 UTC
Battles Michael LouisDirector · CO-CEO
Tax withholdingCommon Stock 1,149 $192.90 $221,642.10
Disclosure

SEC source: 0001415889-25-008370 · form4-03182025_080337.xml · nonDerivative · entry 1

Battles Michael Louis · CIK 0001379357 · Director · CO-CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 87,173

F1 · shares: Payment of tax liability by withholding of securities incident to vesting of securities in accordance with Rule 16b-3.

Read SEC document
March 17, 2025 Filed Mar 18, 2025 20:10 UTC
Weber Brian PEVP (CHESI)
Tax withholdingCommon Stock 959 $192.90 $184,991.10
Disclosure

SEC source: 0001415889-25-008363 · form4-03182025_080317.xml · nonDerivative · entry 1

Weber Brian P · CIK 0001322710 · EVP (CHESI)

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 61,676

F1 · shares: Payment of tax liability by withholding of securities incident to vesting of securities in accordance with Rule 16b3.

Read SEC document
March 17, 2025 Filed Mar 18, 2025 20:07 UTC
Gabriel Sharon M.EVP/CIO (CHESI)
Tax withholdingCommon Stock 667 $192.90 $128,664.30
Disclosure

SEC source: 0001415889-25-008358 · form4-03182025_080333.xml · nonDerivative · entry 1

Gabriel Sharon M. · CIK 0001756568 · EVP/CIO (CHESI)

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 31,087

F1 · shares: Payment of tax liability by withholding of securities incident to vesting of securities in accordance with Rule 16b3.

Read SEC document
March 17, 2025 Filed Mar 18, 2025 20:04 UTC Tax withholdingCommon Stock 978 $192.90 $188,656.20
Disclosure

SEC source: 0001415889-25-008346 · form4-03182025_080334.xml · nonDerivative · entry 1

GERSTENBERG ERIC W · CIK 0001211558 · CO-CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 64,439

F1 · shares: Payment of tax liability by withholding of securities incident to vesting of securities in accordance with Rule 16b3.

Read SEC document
March 17, 2025 Filed Mar 18, 2025 19:00 UTC
MCKIM ALAN SDirector · EXEC CHAIR, CTO.
Tax withholdingCommon Stock 1,265 $192.90 $244,018.50
Disclosure

SEC source: 0001415889-25-008323 · form4-03182025_060357.xml · nonDerivative · entry 1

MCKIM ALAN S · CIK 0001024547 · Director · EXEC CHAIR, CTO.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 35,369

F1 · shares: Payment of tax liability by withholding of securities incident to vesting of securities in accordance with Rule 16b3.

Read SEC document
March 17, 2025 Filed Mar 18, 2025 18:58 UTC
Speights RobertPRESIDENT, INDUSTRIAL SERVICES
Tax withholdingCommon Stock 2,481 $192.90 $478,584.90
Disclosure

SEC source: 0001415889-25-008321 · form4-03182025_060327.xml · nonDerivative · entry 1

Speights Robert · CIK 0001756200 · PRESIDENT, INDUSTRIAL SERVICES

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,527

F1 · shares: Payment of tax liability by withholding of securities incident to vesting of securities in accordance with Rule 16b3.

Read SEC document
March 17, 2025 Filed Mar 18, 2025 18:57 UTC
CURTIS GEORGE LEXEC. VICE PRESIDENT (CHESI)
Tax withholdingCommon Stock 351 $192.90 $67,707.90
Disclosure

SEC source: 0001415889-25-008319 · form4-03182025_060327.xml · nonDerivative · entry 1

CURTIS GEORGE L · CIK 0001216581 · EXEC. VICE PRESIDENT (CHESI)

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 49,304

F1 · shares: Payment of tax liability by withholding of securities incident to vesting of securities in accordance with Rule 16b-3.

Read SEC document
March 17, 2025 Filed Apr 2, 2025 19:29 UTC Amendment
Weber Brian PEVP (CHESI)
Disposition to issuerCommon Stock 4,093 $0.00 $0.00
Disclosure

SEC source: 0001415889-25-009594 · form4a-04022025_070418.xml · nonDerivative · entry 2

Weber Brian P · CIK 0001322710 · EVP (CHESI)

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 57,583

F2 · shares: Forfeiture of shares of restricted stock due to Company's failure to achieve goals under Company's Long Term Equity Incentive Program.

Read SEC document
March 17, 2025 Filed Apr 2, 2025 19:29 UTC Amendment
Weber Brian PEVP (CHESI)
Tax withholdingCommon Stock 959 $192.90 $184,991.10
Disclosure

SEC source: 0001415889-25-009594 · form4a-04022025_070418.xml · nonDerivative · entry 1

Weber Brian P · CIK 0001322710 · EVP (CHESI)

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 61,676

F1 · shares: Payment of tax liability by withholding of securities incident to vesting of securities in accordance with Rule 16b-3.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.