Cook Gregory B 4

What Happened

• Gregory B. Cook, EVP & President – Institutional Group at Ecolab, received a grant/award of 3,388 shares (performance-based restricted stock units vesting) on Feb 18, 2026. Concurrently, 1,065.986 shares were withheld to satisfy minimum statutory tax obligations, recorded at $303.15 per share for a total tax withholding value of $323,154. The award shares were reported as acquired (code A) and the withheld shares as disposed/withheld for taxes (code F).

Key Details

• Date of transaction: 2026-02-18
• Award: 3,388 shares (acquired) at $0.00 reported cost
• Tax withholding: 1,065.986 shares withheld at $303.15 each; total $323,154
• Reported holdings note: 3,556.129 units in the Ecolab Stock Fund of the Ecolab 401(k) Plan as of Jan 31, 2026 (≈6,519 shares equivalent) per filing footnote
• Footnotes: F1 — shares withheld to pay minimum statutory tax obligations on vesting of performance-based RSUs; F2 — stock fund units detail in 401(k) plan
• Filing timing: Form 4 filed Feb 20, 2026 for transactions on Feb 18, 2026 (appears timely under standard 2-business-day rule)

Context

• This was not an open-market sale or a buy signal — the disposed shares were withheld to cover taxes when performance-based RSUs vested (common, routine practice). No options were exercised for immediate sale; instead the company retained shares to meet tax withholding requirements.