REGENXBIO INC

Ticker: RGNX CUSIP: 75901B107 Class: Common Stock

DEERFIELD MANAGEMENT COMPANY, L.P.'s Holding History (CIK: 0001009258)

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

Q3 2018
Shares 275,000 Value ($000) $20,763 Avg Close $72.05 Range $61.00 - $85.10
Q2 2018
Shares 125,000 Value ($000) $8,969 Avg Close $47.76 Range $26.80 - $75.15
Q1 2018
Shares 256,300 Value ($000) $7,651 Avg Close $29.10 Range $23.25 - $42.00
Q4 2017
Shares 256,300 Value ($000) $8,522 Avg Close $30.13 Range $24.35 - $36.10
Q2 2016
Shares 1,169,042 Value ($000) $9,352 Avg Close $11.10 Range $7.71 - $13.77
Q1 2016
Shares 1,169,042 Value ($000) $12,626 Avg Close $12.80 Range $8.50 - $17.31
Q4 2015
Shares 1,169,042 Value ($000) $19,406 Avg Close $19.85 Range $13.77 - $25.00
Q3 2015
Shares 1,336,542 Value ($000) $29,444 Avg Close $25.52 Range $17.51 - $32.00