REGENXBIO INC

Ticker: RGNX CUSIP: 75901B107 Class: Common Stock

Castle Hook Partners LP's Holding History (CIK: 0001687241)

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

Q2 2017

Shares 150,000 Value ($000) $2,963 Avg Close $19.36 Range $16.30 - $22.95

Q1 2017

Shares 60,000 Value ($000) $1,158 Avg Close $19.29 Range $16.30 - $24.15

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2017	150,000	$2,963	$19.36	$16.30 - $22.95
Q1 2017	60,000	$1,158	$19.29	$16.30 - $24.15