Ownership Submission
FORM 3
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF 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 *
  Zundel Mark D
 2. Date of Event Requiring Statement (Month/Day/Year)
12/11/2018		 3. Issuer Name and Ticker or Trading Symbol
CASTLE A M & CO [CTAM]
(Last)
(First)
(Middle)
1420 KENSINGTON ROAD, SUITE 220		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
EVP, Global Supply & Aerospace
 5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

OAK BROOK, IL 60523		 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 Beneficially Owned
1.Title of Security
(Instr. 4)		 2. Amount of Securities Beneficially Owned
(Instr. 4)		 3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)		 4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock 54,980 (1)
D
 

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)		 2. Date Exercisable and Expiration Date
(Month/Day/Year)		 3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)		 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)		 6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Convertible Notes 08/31/2017 08/31/2022 Common Stock 21,756 (2) $ 3.77 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Zundel Mark D
1420 KENSINGTON ROAD
SUITE 220
OAK BROOK, IL 60523		       EVP, Global Supply & Aerospace  

Signatures

/s/ Mark D. Zundel, By: Michelle McIntosh, Attorney-in-Fact 12/20/2018
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(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) Represents restricted stock granted by the Issuer pursuant to the A.M. Castle & Co. 2017 Management Incentive Plan (the "Plan"). The restricted stock vests in full on August 31, 2020.
(2) Represents an aggregate amount of $82,023 of Second Lien Notes (the "Notes") granted under the Plan on August 31, 2017 and includes $5,943 of PIK interest pursuant to the terms of the Notes.

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