OVASCIENCE INC

CUSIP: 69014Q101 Class: COM

EcoR1 Capital, LLC's Holding History (CIK: 0001587114)

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

Q3 2017
Shares 3,512,332 Value ($000) $4,988 Avg Close — Range —
Q2 2017
Shares 3,512,332 Value ($000) $5,479 Avg Close — Range —
Q1 2017
Shares 3,512,332 Value ($000) $6,568 Avg Close — Range —
Q4 2015
Shares 424,979 Value ($000) $4,152 Avg Close — Range —