ARDELYX INC

Ticker: ARDX CUSIP: 039697107 Class: Common Stock

Optiver Holding B.V.'s Holding History (CIK: 0001859606)

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

Q3 2025

Shares 1,272 Value ($000) $7 Avg Close $5.43 Range $3.80 - $6.78

Q2 2025

Shares 1,265 Value ($000) $5 Avg Close $4.13 Range $3.21 - $5.64

Q1 2025

Shares 1,206 Value ($000) $6 Avg Close $5.37 Range $4.67 - $6.55

Q4 2024

Shares 321 Value ($000) $2 Avg Close $5.52 Range $4.32 - $7.04

Q3 2024

Shares 297 Value ($000) $2 Avg Close $5.90 Range $5.07 - $8.06

Q2 2024

Shares 2,410 Value ($000) $18 Avg Close $7.03 Range $5.76 - $9.33

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	1,272	$7	$5.43	$3.80 - $6.78
Q2 2025	1,265	$5	$4.13	$3.21 - $5.64
Q1 2025	1,206	$6	$5.37	$4.67 - $6.55
Q4 2024	321	$2	$5.52	$4.32 - $7.04
Q3 2024	297	$2	$5.90	$5.07 - $8.06
Q2 2024	2,410	$18	$7.03	$5.76 - $9.33