OLIN Corp — Director's Dealing 2021

May 26, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: OLIN Corp (OLN)
CIK: 0000074303
Period of Report: 2021-05-25

Reporting Person: VERMILLION TERESA M (VP & Treasurer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-05-25	Common Stock $1 par value	M	8000	$29.75	Acquired	11371.997	Direct
2021-05-25	Common Stock $1 par value	S	8000	$48.6443	Disposed	3371.997	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-05-25	Employee Stock Options (Right to Buy)	$29.75	M	8000	Disposed	2027-02-10	Common Stock $1 par value (8000.0)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock $1 par value	130.8001	Indirect

Footnotes

F1: Amount includes 397.997 shares held under dividend reinvestment plans acquired periodically in transactions, which are exempt from Section 16(b).

F2: This transaction was executed in multiple trades ranging from $48.60 to $48.73. The price reported above reflects the average weighted sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F3: The figure represents shares of Olin Common Stock held under the Olin Common Stock Fund of the Olin Corporation Contributing Employee Ownership Plan (CEOP), a tax conditioned plan reflecting transactions exempt under Rule 16b-3, as reported by the CEOP Plan Administrator as of April 15, 2021.

F4: The option vested in three equal annual installments on February 10, 2018, 2019 and 2020.