REGENXBIO INC

Ticker: RGNX CUSIP: 75901B107 Class: Common Stock

Mariner, LLC's Holding History (CIK: 0001373442)

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

Q4 2025

Shares 55,423 Value ($000) $797 Avg Close $12.46 Range $9.55 - $15.41

Q3 2025

Shares 32,306 Value ($000) $312 Avg Close $8.84 Range $7.35 - $10.17

Q2 2025

Shares 12,904 Value ($000) $106 Avg Close $8.37 Range $5.04 - $11.00

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	55,423	$797	$12.46	$9.55 - $15.41
Q3 2025	32,306	$312	$8.84	$7.35 - $10.17
Q2 2025	12,904	$106	$8.37	$5.04 - $11.00