OLIN Corp — Director's Dealing 2005

Jan 4, 2005

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: OLIN CORP (OLN)
CIK: 0000074303
Period of Report: 2004-12-31

Reporting Person: PIERPONT JANET M (Vice President and Treasurer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2004-12-31	Common Stock	M	1666	$22.01	Acquired	11521	Direct
2004-12-31	Common Stock	F	526	$22.01	Disposed	10995	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2004-12-31	Restricted Stock Units	$	M	1666	Disposed	2004-12-31	Common Stock (1666)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	56.6412	Indirect

Footnotes

F1: The figure shown represents shares of Olin Common Stock acquired on a periodic basis under the Olin Corporation Contributing Employee Ownership Plan (CEOP), a tax-conditioned plan, and held in the Olin Common Stock Fund of the CEOP, in a transaction exempt under Rule 16b-3, and is based on information provided by the Plan Administrator as of December 31, 2004.

F2: Security converts to common stock on a one-for-one basis.