SYNDAX PHARMACEUTICALS INC

Ticker: SNDX CUSIP: 87164F105 Class: Common Stock

GUGGENHEIM CAPITAL LLC's Holding History (CIK: 0001283072)

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

Q4 2025

Shares 14,538 Value ($000) $305 Avg Close $17.45 Range $12.99 - $22.73

Q3 2025

Shares 12,143 Value ($000) $187 Avg Close $13.09 Range $8.59 - $17.24

Q2 2025

Shares 12,748 Value ($000) $119 Avg Close $11.01 Range $8.58 - $14.24

Q1 2025

Shares 12,490 Value ($000) $153 Avg Close $14.10 Range $12.06 - $16.95

Q4 2024

Shares 11,881 Value ($000) $157 Avg Close $17.11 Range $12.40 - $22.50

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	14,538	$305	$17.45	$12.99 - $22.73
Q3 2025	12,143	$187	$13.09	$8.59 - $17.24
Q2 2025	12,748	$119	$11.01	$8.58 - $14.24
Q1 2025	12,490	$153	$14.10	$12.06 - $16.95
Q4 2024	11,881	$157	$17.11	$12.40 - $22.50