SYNDAX PHARMACEUTICALS INC

Ticker: SNDX CUSIP: 87164F105 Class: Common Stock

STATE OF WISCONSIN INVESTMENT BOARD's Holding History (CIK: 0000854157)

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

Q4 2025

Shares 40,761 Value ($000) $856 Avg Close $17.45 Range $12.99 - $22.73

Q3 2025

Shares 50,330 Value ($000) $774 Avg Close $13.09 Range $8.59 - $17.24

Q2 2025

Shares 141,113 Value ($000) $1,322 Avg Close $11.01 Range $8.58 - $14.24

Q1 2025

Shares 64,107 Value ($000) $788 Avg Close $14.10 Range $12.06 - $16.95

Q4 2024

Shares 53,129 Value ($000) $702 Avg Close $17.11 Range $12.40 - $22.50

Q3 2024

Shares 40,185 Value ($000) $774 Avg Close $20.66 Range $17.34 - $25.07

Q2 2024

Shares 52,287 Value ($000) $1,073 Avg Close $20.93 Range $18.65 - $24.38

Q1 2024

Shares 41,201 Value ($000) $981 Avg Close $22.30 Range $19.58 - $25.34

Q4 2023

Shares 78,758 Value ($000) $1,702 Avg Close $15.37 Range $11.21 - $21.84

Q3 2023

Shares 54,456 Value ($000) $791 Avg Close $18.92 Range $12.85 - $23.55

Q2 2023

Shares 47,056 Value ($000) $985 Avg Close $20.82 Range $19.27 - $23.14

Q1 2023

Shares 52,389 Value ($000) $1,106 Avg Close $24.88 Range $20.01 - $29.86

Q4 2022

Shares 53,447 Value ($000) $1,360 Avg Close $23.32 Range $20.25 - $26.51

Q3 2022

Shares 46,213 Value ($000) $1,110 Avg Close $22.44 Range $18.05 - $25.71

Q2 2022

Shares 43,574 Value ($000) $838 Avg Close $16.66 Range $13.27 - $19.91

Q1 2022

Shares 58,200 Value ($000) $1,012 Avg Close $16.84 Range $14.56 - $22.27

Q4 2021

Shares 58,200 Value ($000) $1,274 Avg Close $18.48 Range $14.76 - $22.71

Q3 2021

Shares 74,600 Value ($000) $1,426 Avg Close $16.66 Range $13.58 - $20.32

Q2 2021

Shares 76,000 Value ($000) $1,305 Avg Close $18.32 Range $13.02 - $25.46

Q1 2021

Shares 53,500 Value ($000) $1,196 Avg Close $22.59 Range $19.05 - $25.68

Q4 2020

Shares 50,800 Value ($000) $1,130 Avg Close $20.74 Range $13.92 - $27.85

Q3 2020

Shares 57,800 Value ($000) $853 Avg Close $15.24 Range $13.04 - $17.99

Q2 2020

Shares 40,200 Value ($000) $596 Avg Close $15.23 Range $8.72 - $21.97

Q1 2020

Shares 36,700 Value ($000) $403 Avg Close $9.38 Range $6.32 - $12.27

Q4 2019

Shares 30,100 Value ($000) $264 Avg Close $7.34 Range $5.35 - $9.47

Q3 2019

Shares 30,100 Value ($000) $225 Avg Close $9.11 Range $7.45 - $11.11

Q2 2019

Shares 19,200 Value ($000) $179 Avg Close $7.29 Range $4.82 - $9.66

Q1 2019

Shares 18,800 Value ($000) $99 Avg Close $5.70 Range $4.24 - $7.12

Q4 2018

Shares 14,400 Value ($000) $64 Avg Close $5.48 Range $3.39 - $9.15

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	40,761	$856	$17.45	$12.99 - $22.73
Q3 2025	50,330	$774	$13.09	$8.59 - $17.24
Q2 2025	141,113	$1,322	$11.01	$8.58 - $14.24
Q1 2025	64,107	$788	$14.10	$12.06 - $16.95
Q4 2024	53,129	$702	$17.11	$12.40 - $22.50
Q3 2024	40,185	$774	$20.66	$17.34 - $25.07
Q2 2024	52,287	$1,073	$20.93	$18.65 - $24.38
Q1 2024	41,201	$981	$22.30	$19.58 - $25.34
Q4 2023	78,758	$1,702	$15.37	$11.21 - $21.84
Q3 2023	54,456	$791	$18.92	$12.85 - $23.55
Q2 2023	47,056	$985	$20.82	$19.27 - $23.14
Q1 2023	52,389	$1,106	$24.88	$20.01 - $29.86
Q4 2022	53,447	$1,360	$23.32	$20.25 - $26.51
Q3 2022	46,213	$1,110	$22.44	$18.05 - $25.71
Q2 2022	43,574	$838	$16.66	$13.27 - $19.91
Q1 2022	58,200	$1,012	$16.84	$14.56 - $22.27
Q4 2021	58,200	$1,274	$18.48	$14.76 - $22.71
Q3 2021	74,600	$1,426	$16.66	$13.58 - $20.32
Q2 2021	76,000	$1,305	$18.32	$13.02 - $25.46
Q1 2021	53,500	$1,196	$22.59	$19.05 - $25.68
Q4 2020	50,800	$1,130	$20.74	$13.92 - $27.85
Q3 2020	57,800	$853	$15.24	$13.04 - $17.99
Q2 2020	40,200	$596	$15.23	$8.72 - $21.97
Q1 2020	36,700	$403	$9.38	$6.32 - $12.27
Q4 2019	30,100	$264	$7.34	$5.35 - $9.47
Q3 2019	30,100	$225	$9.11	$7.45 - $11.11
Q2 2019	19,200	$179	$7.29	$4.82 - $9.66
Q1 2019	18,800	$99	$5.70	$4.24 - $7.12
Q4 2018	14,400	$64	$5.48	$3.39 - $9.15