FORM 4
[ X ] 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
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                      	Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940	                      	

1. Name and Address of Reporting Person *

Grimm Douglas J.	2. Issuer Name and Ticker or Trading Symbol

Metaldyne Performance Group Inc. [ MPG ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

_____ Director                      _____ 10% Owner
__ X __ Officer (give title below)      _____ Other (specify below)
See Remarks	
(Last)          (First)          (Middle)

C/O METALDYNE PERFORMANCE GROUP INC., ONE TOWNE SQUARE, SUITE 550	3. Date of Earliest Transaction (MM/DD/YYYY)

4/6/2017		
(Street)

SOUTHFIELD, MI 48076
(City)        (State)        (Zip)	4. If Amendment, Date Original Filed (MM/DD/YYYY)

 	6. Individual or Joint/Group Filing (Check Applicable Line)

_ X _ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person	

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned	
1.Title of Security
(Instr. 3)	2. Trans. Date	2A. Deemed Execution Date, if any	3. Trans. 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, par value $0.001 per share ("Common Stock")  	4/6/2017  	 	D (1)	  	190505  	D	  (1)	0  	D  	 	
Common Stock  	4/6/2017  	 	D (1)	  	78232  	D	  (2)	0  	D  	 	
Common Stock  	4/6/2017  	 	D (1)	  	91974  	D	  (3)	0  	D  	 	

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)	
1. Title of Derivate Security
(Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Trans. Date	3A. Deemed Execution Date, if any	4. Trans. 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	7. Title and Amount of Securities Underlying Derivative Security
(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					
Stock Options  	$15.81  	4/6/2017  	 	D   (9)	  	  	55556   	4/6/2017   (4)	9/16/2026  	Common Stock  	55556  	$6.13   (9)	0  	D  	 	
Stock Options  	$15.08  	4/6/2017  	 	D   (9)	  	  	43178   	  (5)	4/4/2026  	Common Stock  	43178  	$6.86   (9)	0  	D  	 	
Stock Options  	$18.90  	4/6/2017  	 	D   (9)	  	  	20764   	  (6)	3/16/2025  	Common Stock  	20764  	$3.04   (9)	0  	D  	 	
Stock Options  	$18.66  	4/6/2017  	 	D   (9)	  	  	485205   	  (4)	6/2/2024  	Common Stock  	485205  	$3.28   (9)	0  	D  	 	
Stock Options  	$20.00  	4/6/2017  	 	D   (9)	  	  	9385   	  (7)	8/4/2024  	Common Stock  	9385  	$1.94   (9)	0  	D  	 	
Stock Options  	$20.00  	4/6/2017  	 	D   (9)	  	  	48875   	  (8)	8/4/2024  	Common Stock  	48875  	$1.94   (9)	0  	D  	 	

Explanation of Responses:	
(1) 	Reflects disposition in connection with the consummation of the transactions contemplated by the Agreement and Plan of Merger, dated as of November 3, 2016 (the "Merger Agreement"), by and among the Issuer, American Axle & Manufacturing Holdings, Inc. ("AAM") and Alpha SPV I, Inc., a wholly-owned subsidiary of AAM ("Merger Sub"), pursuant to which Merger Sub merged with and into the Issuer (the "Merger"), with the Issuer surviving as a wholly-owned subsidiary of AAM and each share of Common Stock was exchanged for $13.50 in cash (the "Cash Consideration") and 0.5 of a share of common stock of AAM (the "Share Consideration" and, together with the Cash Consideration, the "Merger Consideration"). The closing price of a share of Common Stock on April 5, 2017 (the last trading day prior to the effectiveness of the Merger) was $21.90, and the closing price of a share of AAM common stock on April 6, 2017 (the effective date of the Merger) was $17.00.	
(2) 	Reflects disposition under the Merger Agreement, pursuant to which each share of restricted stock of the Issuer was canceled in exchange for the Merger Consideration.	
(3) 	Reflects disposition under the Merger Agreement, pursuant to which each restricted stock unit of the Issuer became fully vested immediately prior to the Merger and was canceled in exchange for the Merger Consideration.	
(4) 	Represents stock options that were accelerated pursuant to the Merger Agreement and became vested and exercisable as of immediately prior to the Merger.	
(5) 	Represents an exercisable stock option, which was to vest and become exercisable in three equal annual installments (beginning on April 4, 2017), and with any previously unvested options being accelerated and becoming vested and exercisable under the Merger Agreement as of immediately prior to the Merger.	
(6) 	Represents an exercisable stock option, which was to vest and become exercisable in three equal annual installments (beginning on March 16, 2016), and with any previously unvested options being accelerated and becoming vested and exercisable under the Merger Agreement as of immediately prior to the Merger.	
(7) 	Currently exercisable.	
(8) 	Represents an exercisable stock option, which was to vest and become exercisable in three equal annual installments (beginning on August 4, 2015), and with any previously unvested options being accelerated and becoming vested and exercisable under the Merger Agreement as of immediately prior to the Merger.	
(9) 	Reflects disposition under the Merger Agreement, pursuant to which each outstanding stock option of the Issuer was canceled in exchange for an amount in cash equal to (x) the aggregate number of shares of Common Stock underlying such stock option immediately prior to the Merger, multiplied by (y) the value of the Merger Consideration (with the Share Consideration being valued at $8.44 per share (0.5 times the closing price of a share of AAM common stock on April 5, 2017 of $16.88 (the last trading day prior to the effectiveness of the Merger)) less the exercise price of such stock option.	

Remarks:
President and Chief Operating Officer	

Reporting Owners	
Reporting Owner Name / Address	Relationships	
	Director	10% Owner	Officer	Other	
Grimm Douglas J.
C/O METALDYNE PERFORMANCE GROUP INC.
ONE TOWNE SQUARE, SUITE 550
SOUTHFIELD, MI 48076			See Remarks		

Signatures		
/s/ Douglas J. Grimm		4/10/2017	
** Signature of Reporting Person		Date

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.	
*	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).	
Note:	File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.	
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