DYAX CORP

CUSIP: 26746E103 Class: CMN

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

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

Q4 2015
Shares 2,717,618 Value ($000) $102,237 Avg Close — Range —
Q3 2015
Shares 2,551,193 Value ($000) $48,702 Avg Close — Range —
Q2 2015
Shares 2,703,093 Value ($000) $71,632 Avg Close — Range —
Q1 2015
Shares 4,207,594 Value ($000) $70,498 Avg Close — Range —
Q4 2014
Shares 4,945,697 Value ($000) $69,536 Avg Close — Range —
Q3 2014
Shares 7,809,139 Value ($000) $79,028 Avg Close — Range —
Q2 2014
Shares 9,982,578 Value ($000) $95,833 Avg Close — Range —
Q1 2014
Shares 7,436,470 Value ($000) $66,780 Avg Close — Range —
Q4 2013
Shares 1,619,697 Value ($000) $12,204 Avg Close — Range —
Q3 2013
Shares 10,418,379 Value ($000) $71,470 Avg Close — Range —
Q2 2013
Shares 10,908,379 Value ($000) $37,743 Avg Close — Range —