REGENXBIO INC

Ticker: RGNX CUSIP: 75901B107 Class: Common Stock

ELEMENT CAPITAL MANAGEMENT LLC's Holding History (CIK: 0001535630)

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

Q4 2018

Shares 5,165 Value ($000) $217 Avg Close $58.66 Range $38.56 - $77.48

Q3 2018

Shares 8,236 Value ($000) $622 Avg Close $72.05 Range $61.00 - $85.10

Q2 2018

Shares 5,915 Value ($000) $424 Avg Close $47.76 Range $26.80 - $75.15

Q1 2018

Shares 9,406 Value ($000) $281 Avg Close $29.10 Range $23.25 - $42.00

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2018	5,165	$217	$58.66	$38.56 - $77.48
Q3 2018	8,236	$622	$72.05	$61.00 - $85.10
Q2 2018	5,915	$424	$47.76	$26.80 - $75.15
Q1 2018	9,406	$281	$29.10	$23.25 - $42.00