RELIANCE, INC. — Director's Dealing 2010

Sep 29, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: RELIANCE STEEL & ALUMINUM CO (RS)
CIK: 0000861884
Period of Report: 2010-09-27

Reporting Person: Tenenbaum Sheldon U. (Sr. VP, Supplier Development)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-09-27	Common Stock	M	7500	$24.575	Acquired	14500	Direct
2010-09-27	Common Stock	S	5675	$41.28	Disposed	8825	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-09-27	Options to Acquire Common Stock	$24.575	M	7500	Disposed	2010-10-18	Common Stock (7500)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	4863	Indirect
Common Stock	112	Indirect

Footnotes

F1: The price reported represents the weighted average sale price of the shares disposed of. The actual sale prices ranged from $41.25 to $41.33. The Reporting Person has provided to the Issuer and hereby undertakes to provide upon request by the U.S. Securities and Exchange Commission Staff or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.

F2: The options vested and became exercisable in four equal annual installments beginning on October 18, 2006, which was the first anniversary of the date on which the options were granted.

F3: In the aggregate, the Reporting Person beneficially owns a total of 45,000 options (with various exercise prices and expiration dates) as of the date of this report.