SYNDAX PHARMACEUTICALS INC

Ticker: SNDX CUSIP: 87164F105 Class: Common Stock

PERCEPTIVE ADVISORS LLC's Holding History (CIK: 0001224962)

Note: Option positions (PUT/CALL) are excluded.

Q1 2021

Shares 270,000 Value ($000) $6,037 Avg Close $22.59 Range $19.05 - $25.68

Q4 2020

Shares 300,000 Value ($000) $6,672 Avg Close $20.74 Range $13.92 - $27.85

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2021	270,000	$6,037	$22.59	$19.05 - $25.68
Q4 2020	300,000	$6,672	$20.74	$13.92 - $27.85