OLIN Corp — Director's Dealing 2019

May 8, 2019

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: OLIN CORP (OLN)
CIK: 0000074303
Period of Report: 2019-05-06

Reporting Person: VERMILLION TERESA M (VP & Treasurer)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2019-05-06	Phantom Stock Units	$	I	448.2948	Acquired		Common Stock (448.2948)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock $1 par value	2025.4	Direct
Common Stock $1 par value	119.4916	Indirect

Footnotes

F1: Amount includes 168.40 shares held under the Olin Corporation Dividend Reinvestment Plan acquired periodically in transactions, which are exempt from Section 16(b).

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, 2019.

F3: Each phantom stock unit is the economic equivalent of one share of Olin Common Stock. Phantom stock units are payable in cash following the reporting person's termination of employment with Olin, and may be transferred by the reporting person into an alternative investment account at any time.

F4: Phantom stock units acquired in multi-fund benefit plan.