OLIN Corp — Director's Dealing 2026

Feb 24, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: OLIN Corp (OLN)
CIK: 0000074303
Period of Report: 2026-02-20

Reporting Person: FLAUGHER BRETT A (VP & Pres, Winchester)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-02-20	Common Stock	M	6276	—	Acquired	6513	Direct
2026-02-20	Common Stock	F	1839	$24.09	Disposed	4674	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2026-02-20	Restricted Stock Units	$	M	6276	Disposed		Common Stock (6276)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	88438	Indirect

Footnotes

F1: Restricted stock units convert into common stock on a one-to-one basis.

F2: On February 20, 2025 the reporting person was granted 18,827 restricted stock units, 6,276 vested on February 20, 2026, 6,276 will vest on February 20, 2027 and 6,275 will vest on February 20, 2028.