REGENXBIO INC

Ticker: RGNX CUSIP: 75901B107 Class: Common Stock

TOCQUEVILLE ASSET MANAGEMENT L.P.'s Holding History (CIK: 0000883961)

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

Q3 2019

Shares 12,545 Value ($000) $447 Avg Close $40.52 Range $30.38 - $52.48

Q2 2019

Shares 12,520 Value ($000) $643 Avg Close $49.92 Range $40.29 - $59.98

Q1 2019

Shares 12,520 Value ($000) $718 Avg Close $49.54 Range $40.24 - $63.21

Q4 2018

Shares 6,245 Value ($000) $262 Avg Close $58.66 Range $38.56 - $77.48

Q3 2018

Shares 12,245 Value ($000) $924 Avg Close $72.05 Range $61.00 - $85.10

Q2 2018

Shares 10,675 Value ($000) $766 Avg Close $47.76 Range $26.80 - $75.15

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2019	12,545	$447	$40.52	$30.38 - $52.48
Q2 2019	12,520	$643	$49.92	$40.29 - $59.98
Q1 2019	12,520	$718	$49.54	$40.24 - $63.21
Q4 2018	6,245	$262	$58.66	$38.56 - $77.48
Q3 2018	12,245	$924	$72.05	$61.00 - $85.10
Q2 2018	10,675	$766	$47.76	$26.80 - $75.15