SPARK THERAPEUTICS INC

CUSIP: 84652J103 Class: COM

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

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

Q1 2017
Shares 283,000 Value ($000) $15,095 Avg Close — Range —
Q4 2016
Shares 283,000 Value ($000) $14,122 Avg Close — Range —
Q3 2016
Shares 368,000 Value ($000) $22,102 Avg Close — Range —
Q2 2016
Shares 368,000 Value ($000) $18,816 Avg Close — Range —
Q2 2015
Shares 631,192 Value ($000) $38,042 Avg Close — Range —
Q1 2015
Shares 631,192 Value ($000) $48,917 Avg Close — Range —