MacLennan David 4

4 · ECOLAB INC. · Filed May 19, 2026

AI-generated summary of this filing

Updated May 19, 2026

Ecolab (ECL) Director David MacLennan Receives Award

What Happened

David MacLennan, a director of Ecolab Inc. (ECL), was granted a derivative award on 2026-05-15 covering 732 option shares. The reported acquisition price is $0.00, indicating a stock‑option or similar equity grant rather than a cash purchase. No immediate cash value or sale was reported.

Key Details

Transaction date: 2026-05-15; Form filed: 2026-05-19.
Grant type: Award/derivative (stock option or similar); 732 shares; acquisition price reported as $0.00.
Vesting: 25% vests at the end of each of the first, second and third three‑month periods after grant, with the remainder vesting by the end of the fourth three‑month period (or earlier at the company's next annual meeting). Option becomes fully exercisable immediately upon a defined Change in Control.
Shares owned after transaction: not disclosed in the supplied filing details.
Timeliness: Filed four days after the transaction date; Form 4s are typically due within two business days, so this filing appears to have been delayed.

Context

This was a grant of a derivative award (options) to a non‑employee director, not an open‑market purchase or sale. Such grants are routine for director compensation and do not, by themselves, indicate buying or selling confidence. The award vests over roughly 12 months (with accelerated vesting on a Change in Control).

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 David W. MacLennan|2026-05-19

1 file