UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13D
(Rule 13d-101)

INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT
TO § 240.13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO
§ 240.13d-2(a)

(Amendment No. 8) 1

A. M. Castle & Co.
(Name of Issuer)

Common Stock, $0.01 par value
(Title of Class of Securities)

148411101
(CUSIP Number)
 
STEVE WOLOSKY, ESQ.
OLSHAN FROME WOLOSKY LLP
Park Avenue Tower
65 East 55th Street
New York, New York 10022
(212) 451-2300
(Name, Address and Telephone Number of Person
Authorized to Receive Notices and Communications)

March 18, 2016
(Date of Event Which Requires Filing of This Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box ¨ .

Note:   Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits.   See § 240.13d-7 for other parties to whom copies are to be sent.


_______________
1               The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes ).
 
 
 

 
CUSIP NO. 148411101
 
1
NAME OF REPORTING PERSON
 
Raging Capital Management, LLC
2
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
  (a)  x
  (b)  o
3
SEC USE ONLY
 
4
SOURCE OF FUNDS
 
AF
5
CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)
 
¨
6
CITIZENSHIP OR PLACE OF ORGANIZATION
 
DELAWARE
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
7
SOLE VOTING POWER
 
- 0 -
8
SHARED VOTING POWER
 
4,630,795
9
SOLE DISPOSITIVE POWER
 
- 0 -
10
SHARED DISPOSITIVE POWER
 
4,630,795
11
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
 
4,630,795
12
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
 
o
13
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
 
19.5%
14
TYPE OF REPORTING PERSON
 
IA

 
2

 
CUSIP NO. 148411101
 
1
NAME OF REPORTING PERSON
 
William C. Martin
2
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
  (a)  x
  (b)  o
3
SEC USE ONLY
 
4
SOURCE OF FUNDS
 
AF
5
CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)
 
¨
6
CITIZENSHIP OR PLACE OF ORGANIZATION
 
USA
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
7
SOLE VOTING POWER
 
- 0 -
8
SHARED VOTING POWER
 
4,630,795
9
SOLE DISPOSITIVE POWER
 
- 0 -
10
SHARED DISPOSITIVE POWER
 
4,630,795
11
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
 
4,630,795
12
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
 
o
13
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
 
19.5%
14
TYPE OF REPORTING PERSON
 
HC

 
3

 
CUSIP NO. 148411101
 
1
NAME OF REPORTING PERSON
 
Raging Capital Master Fund, Ltd.
2
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
  (a)  x
  (b)  o
3
SEC USE ONLY
 
4
SOURCE OF FUNDS
 
 
5
CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)
 
¨
6
CITIZENSHIP OR PLACE OF ORGANIZATION
 
CAYMAN ISLANDS
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
7
SOLE VOTING POWER
 
- 0 -
8
SHARED VOTING POWER
 
- 0 -
9
SOLE DISPOSITIVE POWER
 
- 0 -
10
SHARED DISPOSITIVE POWER
 
- 0 -
11
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
 
- 0 -
12
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
 
o
13
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
 
- 0 -
14
TYPE OF REPORTING PERSON
 
CO

 
4

 
CUSIP NO. 148411101
 
1
NAME OF REPORTING PERSON
 
Kenneth H. Traub
2
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
  (a)  x
  (b)  o
3
SEC USE ONLY
 
4
SOURCE OF FUNDS
 
PF, OO
5
CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)
 
¨
6
CITIZENSHIP OR PLACE OF ORGANIZATION
 
USA
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
7
SOLE VOTING POWER
 
37,555
8
SHARED VOTING POWER
 
- 0 -
9
SOLE DISPOSITIVE POWER
 
18,888
10
SHARED DISPOSITIVE POWER
 
- 0 -
11
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
 
37,555
12
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
 
o
13
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
 
Less than 1%
14
TYPE OF REPORTING PERSON
 
IN

 
5

 
CUSIP NO. 148411101
 
1
NAME OF REPORTING PERSON
 
Allan J. Young
2
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
  (a)  x
  (b)  o
3
SEC USE ONLY
 
4
SOURCE OF FUNDS
 
OO
5
CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)
 
¨
6
CITIZENSHIP OR PLACE OF ORGANIZATION
 
USA
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
7
SOLE VOTING POWER
 
18,667
8
SHARED VOTING POWER
 
- 0 -
9
SOLE DISPOSITIVE POWER
 
- 0 -
10
SHARED DISPOSITIVE POWER
 
- 0 -
11
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
 
18,667
12
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
 
o
13
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
 
Less than 1%
14
TYPE OF REPORTING PERSON
 
IN

 
6

 
CUSIP NO. 148411101
 
1
NAME OF REPORTING PERSON
 
Richard N. Burger
2
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
  (a)  x
  (b)  o
3
SEC USE ONLY
 
4
SOURCE OF FUNDS
 
 
5
CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)
 
¨
6
CITIZENSHIP OR PLACE OF ORGANIZATION
 
USA
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
7
SOLE VOTING POWER
 
- 0 -
8
SHARED VOTING POWER
 
- 0 -
9
SOLE DISPOSITIVE POWER
 
- 0 -
10
SHARED DISPOSITIVE POWER
 
- 0 -
11
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
 
- 0 -
12
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
 
o
13
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
 
- 0 -
14
TYPE OF REPORTING PERSON
 
IN

 
7

 
CUSIP NO. 148411101
 
1
NAME OF REPORTING PERSON
 
Robert L. Lerner
2
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
  (a)  x
  (b)  o
3
SEC USE ONLY
 
4
SOURCE OF FUNDS
 
 
5
CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)
 
¨
6
CITIZENSHIP OR PLACE OF ORGANIZATION
 
USA
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
7
SOLE VOTING POWER
 
- 0 -
8
SHARED VOTING POWER
 
- 0 -
9
SOLE DISPOSITIVE POWER
 
- 0 -
10
SHARED DISPOSITIVE POWER
 
- 0 -
11
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
 
- 0 -
12
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
 
o
13
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
 
- 0 -
14
TYPE OF REPORTING PERSON
 
IN

 
8

 
CUSIP NO. 148411101
 
The following constitutes Amendment No. 8 to the Schedule 13D filed by the undersigned (“Amendment No. 8”).  This Amendment No. 8 amends the Schedule 13D as specifically set forth herein.
 
Item 6.
Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer .
 
Item 6 is hereby amended to add the following:
 
Amended and Restated Transaction Support Agreement
 
On March 18, 2016, the Issuer entered into Amended and Restated Transaction Support Agreements (the “A&R Transaction Support Agreements”) with certain holders of the Issuer’s 12.75% Senior Secured Notes due 2018 (the “Secured Notes”) and the Issuer’s 7.00% Convertible Senior Secured Notes due 2017 (the “Existing Convertible Notes”), which provide for the terms of certain refinancing actions of the Issuer, including an exchange of new 5.25% Senior Secured Convertible Notes due 2019 (the “New Convertible Notes”) for Existing Convertible Notes. The A&R Transaction Support Agreements amended certain provisions of the previously disclosed Transaction Support Agreements to provide, among other things, (i) the removal of the requirement to conduct a separate registered exchange offer of New Convertible Notes for Existing Convertible Notes with holders of Existing Convertible Notes that are not parties to the original Transaction Support Agreements, (ii) a change in the Issuer’s obligation to file a resale registration statement, such that the registration statement need only cover the resale of the Shares underlying the New Convertible Notes, and (iii) an agreement to accelerate the request for stockholder approval regarding the issuance of the Issuer’s Shares upon the conversion of the New Convertible Notes, as required pursuant to Rule 312 of the New York Stock Exchange Listed Company Manual, whereby the Issuer shall call a special meeting of stockholders in the near term for the sole purpose of obtaining such approval. The A&R Transaction Support Agreements made no changes to the economic terms of the New Convertible Notes that the Issuer has agreed to issue in exchange for Existing Convertible Notes. Raging Capital, which beneficially owns in the aggregate $27.5 million of the Secured Notes, $4.2 million of the Existing Convertible Notes and approximately 19.5% of the Shares, is party to one of the A&R Transaction Support Agreements.  Two of the Issuer’s directors, Kenneth H. Traub and Allan J. Young, are employees of Raging Capital.
 
The foregoing description of the terms of the A&R Transaction Support Agreements is not complete and is qualified in its entirety by reference to the text of the Form of Amended and Restated Transaction Support Agreement, which is referenced as Exhibit 99.1 hereto and is incorporated herein by reference.
 
Item 7.
Material to be Filed as Exhibits .
 
Item 7 is hereby amended to add the following exhibit:
 
 
99.1
Form of Amended and Restated Transaction Support Agreement (incorporated herein by reference to Exhibit 10.1 to the Form 8-K filed by A. M. Castle & Co. on March 22, 2016).
 
 
9

 
CUSIP NO. 148411101
 
SIGNATURES
 
After reasonable inquiry and to the best of his knowledge and belief, each of the undersigned certifies that the information set forth in this statement is true, complete and correct.
 
Dated:  March 22, 2016
Raging Capital Master Fund, Ltd.
   
 
By:
Raging Capital Management, LLC
Investment Manager
   
 
By:
/s/ Frederick C. Wasch
   
Name:
Frederick C. Wasch
   
Title:
Chief Financial Officer


 
Raging Capital Management, LLC
   
 
By:
/s/ Frederick C. Wasch
   
Name:
Frederick C. Wasch
   
Title:
Chief Financial Officer


 
/s/ Frederick C. Wasch
 
Frederick C. Wasch, as attorney-in-fact for William C. Martin, Richard N. Burger and Robert L. Lerner


 
/s/ Kenneth H. Traub
 
Kenneth H. Traub


 
/s/ Allan J. Young
 
Allan J. Young


 
10