Briggs Morrison - 19 Sep 2022 Form 4 Insider Report for Syndax Pharmaceuticals Inc (SNDX)

Signature
/s/ Michael A. Metzger, Attorney-in-fact
Issuer symbol
SNDX
Transactions as of
19 Sep 2022
Net transactions value
-$2,123,587
Form type
4
Filing time
21 Sep 2022, 16:18:27 UTC
Previous filing
16 Sep 2022
Next filing
03 Feb 2023

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction SNDX Common Stock Options Exercise $1,246,295 +114,339 +641% $10.90 132,175 19 Sep 2022 Direct
transaction SNDX Common Stock Sale $2,633,044 -114,339 -87% $23.03 17,836 19 Sep 2022 Direct F1, F2
transaction SNDX Common Stock Options Exercise $650,174 +59,649 +334% $10.90 77,485 20 Sep 2022 Direct
transaction SNDX Common Stock Sale $1,387,012 -59,649 -77% $23.25 17,836 20 Sep 2022 Direct F1, F3

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction SNDX Stock Options (Right to buy) Options Exercise $0 -114,339 -100% $0.000000* 0 19 Sep 2022 Common Stock 114,339 $10.90 Direct F4
transaction SNDX Stock Options (Right to buy) Options Exercise $0 -59,649 -100% $0.000000* 0 20 Sep 2022 Common Stock 59,649 $10.90 Direct F4
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 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 774,958 options to purchase shares of common stock that are vested and immediately exercisable and a total of 370,042 options to purchase shares of common stock that have not yet vested.
F2 The sale prices ranged from $22.50 to $23.35
F3 The sale prices ranged from $22.60 to $23.75
F4 This option is fully vested.