NOWELL LIONEL L III 4

4 · ECOLAB INC. · Filed May 19, 2026

AI-generated summary of this filing

Updated May 19, 2026

Ecolab (ECL) Director Lionel L. Nowell III Receives Option Award (732)

What Happened

Lionel L. Nowell III, a member of Ecolab Inc.'s board of directors, was granted a derivative award on 2026-05-15 covering 732 shares. The Form 4 reports the acquisition as a derivative grant (price $0.00 at grant), meaning no cash was paid at the time of grant and no shares were transferred immediately.

Key Details

Transaction date: 2026-05-15; Form 4 filed: 2026-05-19 (filed within the standard two-business-day window).
Reported consideration at grant: $0.00 (derivative award / option).
Shares owned after the transaction: not specified in the provided filing.
Footnote: the option vests cumulatively — 25% at the end of each of the first three three-month periods after grant, with the remainder vesting at the end of the fourth three-month period or the company’s next annual meeting (whichever is earlier). If a Change in Control occurs (as defined in the company plan), the option becomes immediately exercisable in full. The filing’s "Date Exercisable" reflects the first vesting date.

Context

This is a stock-option style grant (a derivative award). No shares were sold or purchased on the open market as part of this filing; the award gives the holder the right to acquire shares in the future subject to vesting and exercise terms. Such grants are common for non-employee directors and represent compensation rather than an immediate investment decision.

Form 4

Period: 2026-05-15

Director

Transactions

Award
Non-Employee Director Stock Option (Right to Buy)
[F1]
2026-05-15+732→ 732 total
Exercise: $247.70From: 2026-08-15Exp: 2036-05-15→ Common Stock (732 underlying)

Holdings

Footnotes (1)

[F1]The option will become exercisable, on a cumulative basis, as to 25% of the option shares (excluding any fractional portion less than one share), on the last day of each of the first, second and third three-month periods following its date of grant and as to the remaining shares on the earlier of the last day of the fourth three-month period following its date of grant or the company's next annual meeting date; provided, however, that if a Change in Control of the Company (as that term is defined in the Ecolab Inc. 2001 Non-Employee Director Stock Option and Deferred Compensation Plan) will occur, then the option will become immediately exercisable in full. The date listed in the Date Exercisable column represents the first vesting date.

Signature

/s/ Corinne Lawson, as Attorney-in-Fact for Lionel L. Nowell, III|2026-05-19

1 file