OLIN Corp — Director's Dealing 2011

Feb 15, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: OLIN CORP (OLN)
CIK: 0000074303
Period of Report: 2011-02-11

Reporting Person: Ennico Dolores J (Vice President,Human Resources)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-02-11	Employee Stock Option (right to buy)	$18.78	A	16000	Acquired	2021-02-10	Common Stock (16000)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock $1 par value	7596	Direct
Common Stock $1 par value	4194.4961	Indirect

Footnotes

F1: 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 January 15, 2011.

F2: The option vests in three annual installments beginning February 11, 2012.