LARSON MICHAEL 4

What Happened

• Michael Larson, a director of Ecolab Inc. (ECL), received a derivative equity award on 2026-05-15 covering 732 shares. The filing reports an acquisition price of $0.00, indicating a non-cash option/award grant rather than an open-market purchase or sale.

Key Details

• Transaction date: 2026-05-15; Form 4 filed 2026-05-19.
• Transaction type: Award/Grant (derivative) — 732 option shares acquired at $0.00 per share.
• Vesting: The option vests 25% at the end of each of the first three three-month periods following the grant, with the remainder vesting at the earlier of the end of the fourth three-month period or the company’s next annual meeting. The option becomes fully exercisable immediately upon a defined Change in Control.
• Shares owned after transaction: not specified in the provided filing excerpt.
• Timeliness: filing date is 2026-05-19 for a 2026-05-15 transaction (timeliness not specified in excerpt).

Context

• This was a grant of an equity award (an option-style derivative) subject to time-based vesting, not an open-market purchase or sale. Such grants compensate directors and align incentives but are not direct signals of buying or selling by the insider. The award includes standard acceleration on a Change in Control.