SYNDAX PHARMACEUTICALS INC

Ticker: SNDX CUSIP: 87164F105 Class: Common Stock

Zimmer Partners, LP's Holding History (CIK: 0001565854)

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

Q3 2025

Shares 383,100 Value ($000) $5,894 Avg Close $13.09 Range $8.59 - $17.24

Q2 2025

Shares 605,800 Value ($000) $5,673 Avg Close $11.01 Range $8.58 - $14.24

Q1 2025

Shares 213,159 Value ($000) $2,619 Avg Close $14.10 Range $12.06 - $16.95

Q2 2024

Shares 155,000 Value ($000) $3,182 Avg Close $20.93 Range $18.65 - $24.38

Q1 2024

Shares 155,000 Value ($000) $3,689 Avg Close $22.30 Range $19.58 - $25.34

Q4 2023

Shares 275,100 Value ($000) $5,945 Avg Close $15.37 Range $11.21 - $21.84

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	383,100	$5,894	$13.09	$8.59 - $17.24
Q2 2025	605,800	$5,673	$11.01	$8.58 - $14.24
Q1 2025	213,159	$2,619	$14.10	$12.06 - $16.95
Q2 2024	155,000	$3,182	$20.93	$18.65 - $24.38
Q1 2024	155,000	$3,689	$22.30	$19.58 - $25.34
Q4 2023	275,100	$5,945	$15.37	$11.21 - $21.84