REGENXBIO INC

Ticker: RGNX CUSIP: 75901B107 Class: Common Stock

Parallax Volatility Advisers, L.P.'s Holding History (CIK: 0001521001)

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

Q1 2020

Shares 1,742 Value ($000) $56 Avg Close $41.66 Range $20.03 - $54.97

Q4 2017

Shares 4,200 Value ($000) $140 Avg Close $30.13 Range $24.35 - $36.10

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2020	1,742	$56	$41.66	$20.03 - $54.97
Q4 2017	4,200	$140	$30.13	$24.35 - $36.10