DYAX CORP

CUSIP: 26746e103 Class: COM

PERCEPTIVE ADVISORS LLC's Holding History (CIK: 0001224962)

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

Q3 2013
Shares 1,692,912 Value ($000) $11,613 Avg Close — Range —
Q2 2013
Shares 1,722,502 Value ($000) $5,960 Avg Close — Range —