OLIN Corp — Director's Dealing 2025

May 5, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: OLIN Corp (OLN)
CIK: 0000074303
Period of Report: 2025-05-01

Reporting Person: Williams Carol A (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-05-01	Common Stock $1 par value	A	1378	$21.77	Acquired	7947	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-05-01	Phantom Stock Units	$	A	7779	Acquired		Common Stock (7779)	Direct

Footnotes

F1: Represents a portion of the annual director compensation granted under the Amended and Restated Olin Corporation 1997 Stock Plan for Non-Employee Directors ("Directors Plan").

F2: Security converts to common stock on a one-to-one basis.

F3: Represents a portion of the annual director compensation grants that are credited to the reporting person's deferred stock account under the Directors Plan.