Metzger Michael A Form 4 Syndax Pharmaceuticals / Michael A Metzger ownership change

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person^*

Metzger Michael A

(Last) (First) (Middle)

C/O SYNDAX PHARMACEUTICALS, INC.

35 GATEHOUSE DRIVE, BUILDING D, FLOOR 3

(Street)

WALTHAM MA 02451

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Syndax Pharmaceuticals Inc [ SNDX ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	10% Owner
X	Officer (give title below)	Other (specify below)
President and COO

3. Date of Earliest Transaction (Month/Day/Year)
12/16/2021

4. If Amendment, Date of 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

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	12/16/2021		M		22,715	A	$6.38	40,374	D
Common Stock	12/16/2021		S(1)		22,715	D	$19.0799(2)	17,659	D
Common Stock	12/17/2021		M		1,676	A	$6.38	19,335	D
Common Stock	12/17/2021		S(1)		1,676	D	$19.0198(3)	17,659	D
Common Stock	12/20/2021		M		16,000	A	$6.38	33,659	D
Common Stock	12/20/2021		S(1)		16,000	D	$20.288(4)	17,659	D
Common Stock	12/20/2021		M		45,000	A	$8.77	62,659	D
Common Stock	12/20/2021		S(1)		45,000	D	$20.288(4)	17,659	D

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 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: 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 (Right to buy)	$6.38	12/16/2021		M			22,715	(5)	02/06/2029	Common Stock	22,715	$0.00	0.00	D
Stock Options (Right to buy)	$6.38	12/17/2021		M			1,676	(5)	02/06/2029	Common Stock	1,676	$0.00	0.00	D
Stock Options (Right to buy)	$8.77	12/20/2021		M			45,000	(5)	02/06/2027	Common Stock	45,000	$0.00	0.00	D
Stock Options (Right to buy)	$6.38	12/20/2021		M			16,000	(5)	02/06/2029	Common Stock	16,000	$0.00	0.00	D

Explanation of Responses:

1. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 plan adopted by the Reporting Person. Following the sales reported in this Form 4, the Reporting Person has a total of 596,031 options to purchase shares of common stock that are vested and immediately exercisable and a total of 335,209 options to purchase shares of common stock that have not yet vested.

2. The sale prices ranged from $19.00 to $19.30.

3. The sale prices ranged from $19.00 to $19.06.

4. The sale prices ranged from $19.17 to $21.01

5. This option is fully vested.

Remarks:

	/s/ Michael A. Metzger	12/20/2021
	** 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).
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