Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
Tiffany Blain
  2. Issuer Name and Ticker or Trading Symbol
CASTLE A M & CO [CAS]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
VP, President-Castle Metals
(Last)
(First)
(Middle)
1420 KENSINGTON ROAD, SUITE 220
3. Date of Earliest Transaction (Month/Day/Year)
03/06/2013
(Street)

OAK BROOK, IL 60523
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)
7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 03/06/2013   M   6,630 (1) A $ 0 39,684 D  
Common Stock 03/06/2013   F   2,824 D $ 16.29 36,860 D  
Common Stock               530 I Through 401(k) Plan

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)
6. Date Exercisable and Expiration Date
(Month/Day/Year)
7. Title and Amount of Underlying Securities
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)
10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)
11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Performance Share Units (2) 03/06/2013   M     6,630   (2)   (2) Common Stock 6,630 $ 0 (2) 0 D  
Restricted Stock Units (3) 03/06/2013   A   8,400     (4)   (4) Common Stock 8,400 $ 0 8,400 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Tiffany Blain
1420 KENSINGTON ROAD
SUITE 220
OAK BROOK, IL 60523
      VP, President-Castle Metals  

Signatures

 Robert J. Perna, Attorney-in-Fact   03/08/2013
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) Shares of common stock acquired pursuant to the payout of a performance share unit grant made on March 18, 2010 (the "PSU").
(2) Each PSU represented a contingent right to receive a share of A.M. Castle & Co. common stock upon achievement of certain total shareholder return ("TSR") performance goals set by the Human Resources Committee of the Board of Directors in 2010. The PSU paid out on March 6, 2013.
(3) Each restricted stock unit represents a contingent right to receive one share of common stock of A.M. Castle & Co.
(4) The restricted stock units vest in full on December 31, 2015, provided the reporting person is employed by A.M. Castle & Co. on the vesting date.

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