DIMENSION THERAPEUTICS INC

CUSIP: 25433V105 Class: COM

RA CAPITAL MANAGEMENT, L.P.'s Holding History (CIK: 0001346824)

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

Q4 2016
Shares 928,199 Value ($000) $4,038 Avg Close — Range —
Q3 2016
Shares 1,548,033 Value ($000) $12,369 Avg Close — Range —
Q2 2016
Shares 1,548,033 Value ($000) $9,288 Avg Close — Range —
Q1 2016
Shares 1,548,033 Value ($000) $12,121 Avg Close — Range —
Q4 2015
Shares 1,087,930 Value ($000) $12,272 Avg Close — Range —