Carol A. Williams - 01 May 2025 Form 4 Insider Report for OLIN Corp (OLN)

Role: Director
Signature: /s/ E.C. Tanner, Attorney-in-Fact
Issuer symbol: OLN
Transactions as of: 01 May 2025
Net transactions value: +$199,348
Form type: 4
Filing time: 05 May 2025, 16:21:33 UTC
Previous filing: 17 May 2024
Next filing: 19 May 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Williams Carol A	Director	C/O OLIN CORPORATION, 190 CARONDELET PLZ, STE 1530, CLAYTON	/s/ E.C. Tanner, Attorney-in-Fact	05 May 2025	0001398213

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	OLN	Common Stock $1 par value	Award	$29,999	+1,378	+21%	$21.77	7,947	01 May 2025	Direct	F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	OLN	Phantom Stock Units	Award	$169,349	+7,779	+18%	$21.77	51,827	01 May 2025	Common Stock	7,779		Direct	F2, F3

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
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.