SYNDAX PHARMACEUTICALS INC

Ticker: SNDX CUSIP: 87164F105 Class: Common Stock

CANADA PENSION PLAN INVESTMENT BOARD's Holding History (CIK: 0001283718)

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

Q4 2025

Shares 229,600 Value ($000) $4,824 Avg Close $17.45 Range $12.99 - $22.73

Q3 2025

Shares 229,600 Value ($000) $3,532 Avg Close $13.09 Range $8.59 - $17.24

Q4 2024

Shares 70,000 Value ($000) $925 Avg Close $17.11 Range $12.40 - $22.50

Q3 2024

Shares 70,000 Value ($000) $1,348 Avg Close $20.66 Range $17.34 - $25.07

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	229,600	$4,824	$17.45	$12.99 - $22.73
Q3 2025	229,600	$3,532	$13.09	$8.59 - $17.24
Q4 2024	70,000	$925	$17.11	$12.40 - $22.50
Q3 2024	70,000	$1,348	$20.66	$17.34 - $25.07