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Net $ Activity (confirmed months)
−$63.40M
Open-Market Buy : Sell Events (confirmed months)
0 : 13
Avg. Open-Market Price / Share (confirmed months)
Buy-Sell$286.68
| Date | Insider | Type | Shares | Price | Value |
|---|---|---|---|---|---|
| 03/13/26 | Gerstenberg Eric WCO-CEO | Tax Withholding | 977 | $288.93 | $282.28K |
| 03/13/26 | Gerstenberg Eric WCO-CEO | To Issuer | 2,166 | - | - |
| 03/13/26 | Gerstenberg Eric WCO-CEO | Tax Withholding | 977 | $288.93 | $282.28K |
| 03/13/26 | Gerstenberg Eric WCO-CEO | To Issuer | 2,166 | - | - |
| 03/13/26 | Mckim Alan SEXEC CHAIR, CTO., Director | Tax Withholding | 1,265 | $288.93 | $365.50K |
| 03/04/26 | Mckim Alan SEXEC CHAIR, CTO., Director | Sell | 100,000 | $292.65 | $29.27M |
| 02/23/26 | Gerstenberg Eric WCO-CEO | Sell | 2,500 | $279.86 | $699.65K |
| 02/23/26 | Gerstenberg Eric WCO-CEO | Sell | 2,500 | $279.86 | $699.65K |
| 02/20/26 | Gabriel Sharon M.EVP/CIO (CHESI) | Sell | 3,540 | $282.07 | $998.53K |
| 02/20/26 | Dugas Eric J.EVP CHIEF FINANCIAL OFFICER | Sell | 2,788 | $281.31 | $784.29K |
| 02/20/26 | Dugas Eric J.EVP CHIEF FINANCIAL OFFICER | Sell | 2,788 | $281.31 | $784.29K |
| 02/19/26 | Welch John R.Director | Sell | 750 | $273.07 | $204.80K |
| 02/19/26 | Mckim Alan SEXEC CHAIR, CTO., Director | Sell | 100,000 | $281.14 | $28.11M |
| 02/19/26 | Mckim Alan SEXEC CHAIR, CTO., Director | Gift | 10,000 | - | - |
| 02/02/26 | Geer Charles H. IiEVP, Industrial Services | Tax Withholding | 197 | $259.91 | $51.20K |
| 02/02/26 | Diderich JeroenEVP&President of Sales&Service | Tax Withholding | 105 | $259.91 | $27.29K |
| 02/02/26 | Underwood RebeccaPRESIDENT & EVP FACILITIES | Tax Withholding | 425 | $259.91 | $110.46K |
| 02/02/26 | Harrison Robert W.EVP, EHS | Tax Withholding | 184 | $259.91 | $47.82K |
| 02/02/26 | Gabriel Sharon M.EVP/CIO (CHESI) | Tax Withholding | 508 | $259.91 | $132.03K |
| 02/02/26 | Dugas Eric J.EVP CHIEF FINANCIAL OFFICER | Tax Withholding | 567 | $259.91 | $147.37K |
| 02/02/26 | Battles Michael LouisCO-CEO, Director | Tax Withholding | 5,205 | $259.91 | $1.35M |
| 02/02/26 | Weber Brian PEVP (CHESI) | Tax Withholding | 1,394 | $259.91 | $362.31K |
| 02/02/26 | Curtis George LEXEC. VICE PRESIDENT (CHESI) | Tax Withholding | 249 | $259.91 | $64.72K |
| 02/02/26 | Gerstenberg Eric WCO-CEO | Tax Withholding | 4,934 | $259.91 | $1.28M |
| 02/01/26 | Geer Charles H. IiEVP, Industrial Services | Award | 1,843 | - | - |
| 02/01/26 | Geer Charles H. IiEVP, Industrial Services | Award | 503 | - | - |
| 02/01/26 | Diderich JeroenEVP&President of Sales&Service | Award | 3,141 | - | - |
| 02/01/26 | Diderich JeroenEVP&President of Sales&Service | Award | 1,047 | - | - |
| 02/01/26 | Underwood RebeccaPRESIDENT & EVP FACILITIES | Award | 2,513 | - | - |
| 02/01/26 | Underwood RebeccaPRESIDENT & EVP FACILITIES | Award | 838 | - | - |
| 02/01/26 | Harrison Robert W.EVP, EHS | Award | 1,003 | - | - |
| 02/01/26 | Harrison Robert W.EVP, EHS | Award | 430 | - | - |
| 02/01/26 | Gabriel Sharon M.EVP/CIO (CHESI) | Award | 2,073 | - | - |
| 02/01/26 | Gabriel Sharon M.EVP/CIO (CHESI) | Award | 566 | - | - |
| 02/01/26 | Dugas Eric J.EVP CHIEF FINANCIAL OFFICER | Award | 3,066 | - | - |
| 02/01/26 | Dugas Eric J.EVP CHIEF FINANCIAL OFFICER | Award | 1,022 | - | - |
| 02/01/26 | Battles Michael LouisCO-CEO, Director | Award | 10,290 | - | - |
| 02/01/26 | Battles Michael LouisCO-CEO, Director | Award | 10,690 | - | - |
| 02/01/26 | Weber Brian PEVP (CHESI) | Award | 3,166 | - | - |
| 02/01/26 | Weber Brian PEVP (CHESI) | Award | 1,056 | - | - |
| 02/01/26 | Gerstenberg Eric WCO-CEO | Award | 10,290 | - | - |
| 02/01/26 | Gerstenberg Eric WCO-CEO | Award | 10,690 | - | - |
| 01/02/26 | Gabriel Sharon M.EVP/CIO (CHESI) | Tax Withholding | 525 | $234.48 | $123.10K |
| 12/17/25 | Welch John R.Director | Gift | 415 | - | - |
| 12/16/25 | Gerstenberg Eric WCO-CEO | Sell | 601 | $240.90 | $144.78K |
| 12/15/25 | Geer Charles H. IiEVP, Industrial Services | Tax Withholding | 28 | $240.71 | $6.74K |
| 12/15/25 | Underwood RebeccaPRESIDENT & EVP FACILITIES | Tax Withholding | 51 | $240.71 | $12.28K |
| 12/15/25 | Harrison Robert W.EVP, EHS | Tax Withholding | 16 | $240.71 | $3.85K |
| 12/09/25 | Curtis George LEXEC. VICE PRESIDENT (CHESI) | Gift | 1,000 | - | - |
| 12/01/25 | Harrison Robert W.EVP, EHS | Tax Withholding | 122 | $228.54 | $27.88K |