REGENXBIO INC

Ticker: RGNX CUSIP: 75901B107 Class: Common Stock

FOX RUN MANAGEMENT, L.L.C.'s Holding History (CIK: 0001533457)

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

Q4 2025

Shares 17,501 Value ($000) $252 Avg Close $12.46 Range $9.55 - $15.41

Q4 2024

Shares 13,784 Value ($000) $107 Avg Close $9.39 Range $7.14 - $12.22

Q3 2024

Shares 14,440 Value ($000) $151 Avg Close $12.19 Range $10.14 - $15.36

Q2 2019

Shares 5,240 Value ($000) $269 Avg Close $49.92 Range $40.29 - $59.98

Q4 2018

Shares 10,975 Value ($000) $460 Avg Close $58.66 Range $38.56 - $77.48

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	17,501	$252	$12.46	$9.55 - $15.41
Q4 2024	13,784	$107	$9.39	$7.14 - $12.22
Q3 2024	14,440	$151	$12.19	$10.14 - $15.36
Q2 2019	5,240	$269	$49.92	$40.29 - $59.98
Q4 2018	10,975	$460	$58.66	$38.56 - $77.48