OLIN Corp — Director's Dealing 2010

Feb 9, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: OLIN CORP (OLN)
CIK: 0000074303
Period of Report: 2010-02-05

Reporting Person: Ennico Dolores J (Vice President)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-02-05	Employee Stock Option (right to buy)	$15.68	A	15000	Acquired	2020-02-04	Common Stock (15000)	Direct
2010-02-05	Restricted Stock Units	$15.68	A	3333	Acquired	2013-02-05	Common Stock (3333)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock $1 par value	5216	Direct
Common Stock $1 par value	4032.8075	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, 2010.

F2: The option vests in three annual installments beginning February 5, 2011.