REGENXBIO INC

Ticker: RGNX CUSIP: 75901B107 Class: Common Stock

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

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

Q4 2025

Shares 1,546 Value ($000) $22 Avg Close $12.46 Range $9.55 - $15.41

Q3 2025

Shares 446 Value ($000) $4 Avg Close $8.84 Range $7.35 - $10.17

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,546	$22	$12.46	$9.55 - $15.41
Q3 2025	446	$4	$8.84	$7.35 - $10.17