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
| Month | Purchases | Sales |
|---|---|---|
| Nov 2025 | 0 | 0 |
| Dec 2025 | 0 | 1 |
| Jan 2026 | 0 | 0 |
| Feb 2026 | 0 | 7 |
| Mar 2026 | 0 | 5 |
| Apr 2026 | 0 | 0 |
| May 2026 | 1 | 1 |
| Jun 2026 | 0 | 0 |
| Jul 2026 | 0 | 0 |
| Aug 2026 | 0 | 2 |
| Sep 2026 | 0 | 0 |
| Oct 2026 | 0 | 0 |
Latest available
Insider transactions
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 date | Owner / reported role | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| December 15, 2016 Filed Dec 15, 2016 19:00 UTC |
TWOHIG MICHAEL JEVP (CHESI)
|
SaleCommon Stock | 2,154 | $56.59 | $121,894.86 |
DisclosureSEC source: 0001179110-16-032986 · edgar.xml · nonDerivative · entry 1 TWOHIG MICHAEL J · CIK 0001220474 · EVP (CHESI) 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 28,727 Read SEC document |
| December 15, 2016 Filed Dec 19, 2016 21:02 UTC |
CURTIS GEORGE LExec. Vice President (CHESI)
|
Tax withholdingCommon Stock | 88 | $57.13 | $5,027.44 |
DisclosureSEC source: 0001179110-16-033186 · edgar.xml · nonDerivative · entry 1 CURTIS GEORGE L · CIK 0001216581 · Exec. Vice President (CHESI) 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 50,028 F1 · security: Surrender of Shares for Tax Liability upon Vesting of Restricted Stock Read SEC document |
| December 15, 2016 Filed Dec 19, 2016 20:30 UTC |
Weber Brian PEVP (CHESI)
|
Tax withholdingCommon Stock | 157 | $57.13 | $8,969.41 |
DisclosureSEC source: 0001179110-16-033176 · edgar.xml · nonDerivative · entry 1 Weber Brian P · CIK 0001322710 · EVP (CHESI) 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 46,898 F1 · security: Surrender of Shares for Tax Liability upon Vesting of Restricted Stock Read SEC document |
| December 15, 2016 Filed Dec 19, 2016 21:02 UTC |
Bouldin Mark G.EVP/SK
|
Tax withholdingCommon Stock | 22 | $57.13 | $1,256.86 |
DisclosureSEC source: 0001179110-16-033185 · edgar.xml · nonDerivative · entry 1 Bouldin Mark G. · CIK 0001668183 · EVP/SK 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 18,783 F1 · security: Surrender of Shares for Tax Liability upon Vesting of Restricted Stock Read SEC document |
| December 15, 2016 Filed Dec 19, 2016 20:32 UTC |
Battles Michael LouisEVP and CFO
|
Tax withholdingCommon Stock | 50 | $57.13 | $2,856.50 |
DisclosureSEC source: 0001179110-16-033181 · edgar.xml · nonDerivative · entry 1 Battles Michael Louis · CIK 0001379357 · EVP and CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 36,123 F1 · security: Surrender of Shares for Tax Liability upon Vesting of Restricted Stock Read SEC document |
| December 15, 2016 Filed Dec 19, 2016 20:32 UTC |
Lefebvre Marvin GEVP (CHI sub)
|
Tax withholdingCommon Stock | 115 | $57.13 | $6,569.95 |
DisclosureSEC source: 0001179110-16-033180 · edgar.xml · nonDerivative · entry 2 Lefebvre Marvin G · CIK 0001470669 · EVP (CHI sub) 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 51,851 F1 · security: Surrender of Shares for Tax Liability upon Vesting of Restricted Stock Read SEC document |
| December 15, 2016 Filed Dec 19, 2016 20:32 UTC |
Lefebvre Marvin GEVP (CHI sub)
|
SaleCommon Shares | 3,704 | $57.30 | $212,239.20 |
DisclosureSEC source: 0001179110-16-033180 · edgar.xml · nonDerivative · entry 1 Lefebvre Marvin G · CIK 0001470669 · EVP (CHI sub) 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 51,966 Read SEC document |
| December 15, 2016 Filed Dec 19, 2016 20:31 UTC |
GERSTENBERG ERIC WChief Operating Officer
|
Tax withholdingCommon Stock | 262 | $57.13 | $14,968.06 |
DisclosureSEC source: 0001179110-16-033179 · edgar.xml · nonDerivative · entry 1 GERSTENBERG ERIC W · CIK 0001211558 · Chief Operating Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 83,263 F1 · security: Surrender of Shares for Tax Liability upon Vesting of Restricted Stock Read SEC document |
| December 15, 2016 Filed Dec 19, 2016 20:31 UTC |
PARRY DAVID MPres (Indus.and Field Serv)
|
Tax withholdingCommon Stock | 223 | $57.13 | $12,739.99 |
DisclosureSEC source: 0001179110-16-033178 · edgar.xml · nonDerivative · entry 1 PARRY DAVID M · CIK 0001212692 · Pres (Indus.and Field Serv) 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 45,117 F1 · security: Surrender of Shares for Tax Liability upon Vesting of Restricted Stock Read SEC document |
| December 15, 2016 Filed Dec 19, 2016 20:31 UTC |
TWOHIG MICHAEL JEVP (CHESI)
|
Tax withholdingCommon Stock | 93 | $57.13 | $5,313.09 |
DisclosureSEC source: 0001179110-16-033177 · edgar.xml · nonDerivative · entry 1 TWOHIG MICHAEL J · CIK 0001220474 · EVP (CHESI) 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 28,634 F1 · security: Surrender of Shares for Tax Liability upon Vesting of Restricted Stock Read SEC document |
| December 12, 2016 Filed Dec 12, 2016 21:53 UTC |
CURTIS GEORGE LExec. Vice President (CHESI)
|
SaleCommon Stock | 6,016 | $56.00 | $336,896.00 |
DisclosureSEC source: 0001179110-16-032824 · edgar.xml · nonDerivative · entry 1 CURTIS GEORGE L · CIK 0001216581 · Exec. Vice President (CHESI) 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 50,116 Read SEC document |
| December 09, 2016 Filed Dec 12, 2016 21:35 UTC |
GERSTENBERG ERIC WChief Operating Officer
|
SaleCommon Stock | 7,500 | $55.42 | $415,620.00 |
DisclosureSEC source: 0001179110-16-032820 · edgar.xml · nonDerivative · entry 1 GERSTENBERG ERIC W · CIK 0001211558 · Chief Operating Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 83,525 Read SEC document |
| December 09, 2016 Filed Dec 12, 2016 18:00 UTC |
MCKIM ALAN SDirector · Chrmn.of Bd and CEO
|
GiftCommon Stock | 40,000 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001179110-16-032788 · edgar.xml · nonDerivative · entry 1 MCKIM ALAN S · CIK 0001024547 · Director · Chrmn.of Bd and CEO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 4,365,015 F1 · price: Charitable gift to university Read SEC document |
| December 08, 2016 Filed Dec 9, 2016 15:21 UTC |
SHIELDS THOMAS JDirector
|
Exercise / conversionStock Option Right to Buy · Derivative | 12,000 | $33.09 Strike: $33.09 | $397,080.00 |
DisclosureSEC source: 0001179110-16-032653 · edgar.xml · derivative · entry 3 SHIELDS THOMAS J · CIK 0001210908 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 12,000 shares Expires 2018-05-15 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| December 08, 2016 Filed Dec 9, 2016 15:21 UTC |
SHIELDS THOMAS JDirector
|
SaleCommon Stock | 12,000 | $54.47 | $653,640.00 |
DisclosureSEC source: 0001179110-16-032653 · edgar.xml · nonDerivative · entry 2 SHIELDS THOMAS J · CIK 0001210908 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 16,587 Read SEC document |
| December 08, 2016 Filed Dec 9, 2016 15:21 UTC |
SHIELDS THOMAS JDirector
|
Exercise / conversionExercise of Stock Option | 12,000 | $33.09 | $397,080.00 |
DisclosureSEC source: 0001179110-16-032653 · edgar.xml · nonDerivative · entry 1 SHIELDS THOMAS J · CIK 0001210908 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 28,587 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| December 07, 2016 Filed Dec 8, 2016 15:00 UTC |
Lefebvre Marvin GEVP (CHI sub)
|
SaleCommon Stock | 2,000 | $54.50 | $109,000.00 |
DisclosureSEC source: 0001179110-16-032551 · edgar.xml · nonDerivative · entry 1 Lefebvre Marvin G · CIK 0001470669 · EVP (CHI sub) 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 55,670 Read SEC document |
| December 05, 2016 Filed Dec 7, 2016 17:52 UTC |
Lefebvre Marvin GEVP (CHI sub)
|
SaleCommon Stock | 2,084 | $54.10 | $112,744.40 |
DisclosureSEC source: 0001179110-16-032512 · edgar.xml · nonDerivative · entry 1 Lefebvre Marvin G · CIK 0001470669 · EVP (CHI sub) 10b5-1 filing: Not disclosed Ownership: Indirect · Owned by wife Disclosed balance after: 20,690 Read SEC document |
| December 01, 2016 Filed Dec 2, 2016 19:47 UTC |
Lefebvre Marvin GEVP (CHI sub)
|
SaleCommon Stock | 5,000 | $52.21 | $261,050.00 |
DisclosureSEC source: 0001179110-16-032312 · edgar.xml · nonDerivative · entry 2 Lefebvre Marvin G · CIK 0001470669 · EVP (CHI sub) 10b5-1 filing: Not disclosed Ownership: Indirect · Owned by wife Disclosed balance after: 22,774 Read SEC document |
| December 01, 2016 Filed Dec 2, 2016 19:47 UTC |
Lefebvre Marvin GEVP (CHI sub)
|
SaleCommon Stock | 5,000 | $52.19 | $260,950.00 |
DisclosureSEC source: 0001179110-16-032312 · edgar.xml · nonDerivative · entry 1 Lefebvre Marvin G · CIK 0001470669 · EVP (CHI sub) 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 57,670 Read SEC document |
| December 01, 2016 Filed Dec 2, 2016 19:47 UTC |
Kraus Eric AExec. Vice President (CHESI)
|
Tax withholdingCommon Stock | 190 | $53.60 | $10,184.00 |
DisclosureSEC source: 0001179110-16-032311 · edgar.xml · nonDerivative · entry 1 Kraus Eric A · CIK 0001400567 · Exec. Vice President (CHESI) 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 22,922 F1 · security: Surrender of shares for tax liability upon vesting of restricted stock Read SEC document |
| November 04, 2016 Filed Nov 4, 2016 15:07 UTC |
Battles Michael LouisEVP and CFO
|
PurchaseCommon Stock | 1,000 | $44.15 | $44,150.00 |
DisclosureSEC source: 0001179110-16-031222 · edgar.xml · nonDerivative · entry 1 Battles Michael Louis · CIK 0001379357 · EVP and CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 36,173 Read SEC document |
| November 01, 2016 Filed Nov 2, 2016 19:44 UTC |
Dugas Eric J.VP, Corp. Contr and CAO
|
GrantCommon Stock | 5,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001179110-16-031086 · edgar.xml · nonDerivative · entry 1 Dugas Eric J. · CIK 0001663307 · VP, Corp. Contr and CAO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 12,628 F1 · security: Restricted Stock Award vesting as to 33.3% on November 1, 2017; 33.3% on November 1, 2018; and 33.3% on November 1, 2019 Read SEC document |
| October 01, 2016 Filed Oct 3, 2016 18:17 UTC |
Mohan Stephen M.Chief Sales Officer
|
GrantCommon Stock | 10,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001179110-16-030141 · edgar.xml · nonDerivative · entry 1 Mohan Stephen M. · CIK 0001685725 · Chief Sales Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 10,000 F1 · security: Time-based restricted stock award vesting as to 50% on October 1, 2017 and as to 50% on October 1, 2018. Read SEC document |
| October 01, 2016 Filed Oct 4, 2016 20:04 UTC |
Vergo David J.President, Safety-Kleen
|
GrantCommon Stock | 8,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001179110-16-030243 · edgar.xml · nonDerivative · entry 1 Vergo David J. · CIK 0001685793 · President, Safety-Kleen 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 8,000 F1 · security: Time-based restricted stock award vesting as to 20% on October 1, 2017; as to 20% on October 1, 2018; as to 20% on October 1, 2019; as to 20% on October 1, 2020; and at to 20% on October 1, 2021. Read SEC document |
| September 30, 2016 Filed Oct 4, 2016 19:19 UTC |
Battles Michael LouisEVP and CFO
|
Tax withholdingCommon Stock | 866 | $48.21 | $41,749.86 |
DisclosureSEC source: 0001179110-16-030236 · edgar.xml · nonDerivative · entry 1 Battles Michael Louis · CIK 0001379357 · EVP and CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 35,173 F1 · security: Surrender of shares for tax liability upon vesting of restricted stock Read SEC document |
| September 29, 2016 Filed Sep 30, 2016 16:42 UTC |
RUTLEDGE JAMES MDirector · Vice Chmn, Pres.
|
Disposition to issuerCommon Stock | 28,991 | $0.00 | $0.00 |
DisclosureSEC source: 0001179110-16-030092 · edgar.xml · nonDerivative · entry 2 RUTLEDGE JAMES M · CIK 0001205221 · Director · Vice Chmn, Pres. 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 89,210 F2 · security: Forfeiture of restricted stock upon retirement. Read SEC document |
| September 29, 2016 Filed Sep 30, 2016 16:42 UTC |
RUTLEDGE JAMES MDirector · Vice Chmn, Pres.
|
Tax withholdingCommon Stock | 9,738 | $47.75 | $464,989.50 |
DisclosureSEC source: 0001179110-16-030092 · edgar.xml · nonDerivative · entry 1 RUTLEDGE JAMES M · CIK 0001205221 · Director · Vice Chmn, Pres. 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 118,201 F1 · security: Surrender of shares for tax liability upon vesting of restricted stock. Read SEC document |
| September 28, 2016 Filed Sep 28, 2016 17:55 UTC |
Weber Brian PEVP (CHESI)
|
SaleCommon Stock | 773 | $46.58 | $36,003.63 |
DisclosureSEC source: 0001179110-16-030062 · edgar.xml · nonDerivative · entry 1 Weber Brian P · CIK 0001322710 · EVP (CHESI) 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 47,055 Read SEC document |
| September 09, 2016 Filed Sep 12, 2016 18:46 UTC |
Duffee KirkEVP (CHESI)
|
Tax withholdingCommon Stock | 940 | $47.36 | $44,518.40 |
DisclosureSEC source: 0001179110-16-029546 · edgar.xml · nonDerivative · entry 1 Duffee Kirk · CIK 0001648943 · EVP (CHESI) 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 21,654 F1 · security: Surrender of shares for tax liability upon vesting of restricted stock Read SEC document |
| June 07, 2016 Filed Jun 8, 2017 17:24 UTC |
BANUCCI EUGENE GDirector
|
GrantCommon Stock | 2,057 | $0.00 | $0.00 |
DisclosureSEC source: 0001179110-17-008746 · edgar.xml · nonDerivative · entry 1 BANUCCI EUGENE G · CIK 0001136883 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 34,958 F1 · security: Award of restricted stock to non-employee director vesting 100% on June 7, 2018 Read SEC document |
| March 08, 2016 Filed Mar 10, 2017 20:44 UTC |
Kraus Eric AExec. Vice President (CHESI)
|
Disposition to issuerCommon Stock | 1,615 | $0.00 | $0.00 |
DisclosureSEC source: 0001179110-17-004403 · edgar.xml · nonDerivative · entry 1 Kraus Eric A · CIK 0001400567 · Exec. Vice President (CHESI) 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 21,307 F1 · kind: 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 |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.