SYNDAX PHARMACEUTICALS INC

Ticker: SNDX CUSIP: 87164F105 Class: Common Stock

Atom Investors LP's Holding History (CIK: 0001738902)

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

Q4 2025

Shares 141,666 Value ($000) $2,976 Avg Close $17.45 Range $12.99 - $22.73

Q2 2025

Shares 13,104 Value ($000) $123 Avg Close $11.01 Range $8.58 - $14.24

Q1 2025

Shares 57,274 Value ($000) $704 Avg Close $14.10 Range $12.06 - $16.95

Q4 2024

Shares 62,795 Value ($000) $830 Avg Close $17.11 Range $12.40 - $22.50

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	141,666	$2,976	$17.45	$12.99 - $22.73
Q2 2025	13,104	$123	$11.01	$8.58 - $14.24
Q1 2025	57,274	$704	$14.10	$12.06 - $16.95
Q4 2024	62,795	$830	$17.11	$12.40 - $22.50