OLIN Corp — Director's Dealing 2017

May 9, 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: OLIN CORP (OLN)
CIK: 0000074303
Period of Report: 2017-05-05

Reporting Person: Slater Todd A (VP & CFO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-05-05	Common Stock $1 par value	M	4000	—	Acquired	63011	Direct
2017-05-05	Common Stock $1 par value	F	1020	$29.69	Disposed	61991	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2017-05-05	Restricted Stock Units	$	M	4000	Disposed		Common Stock (4000)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock $1 par value	11658.6481	Indirect

Footnotes

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

F2: 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 30, 2017.

F3: On May 5, 2014 granted 4,000 restricted stock units vesting on May 5, 2017.