DYAX CORP

CUSIP: 26746E103 Class: CMN

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

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

Q4 2015
Shares 1,819,215 Value ($000) $68,439 Avg Close — Range —
Q3 2015
Shares 1,646,315 Value ($000) $31,428 Avg Close — Range —
Q2 2015
Shares 1,786,315 Value ($000) $47,337 Avg Close — Range —
Q1 2015
Shares 1,777,000 Value ($000) $29,774 Avg Close — Range —
Q4 2014
Shares 1,852,000 Value ($000) $26,039 Avg Close — Range —
Q3 2014
Shares 2,835,498 Value ($000) $28,695 Avg Close — Range —
Q2 2014
Shares 2,710,598 Value ($000) $26,022 Avg Close — Range —
Q1 2014
Shares 2,562,674 Value ($000) $23,013 Avg Close — Range —
Q4 2013
Shares 2,332,674 Value ($000) $17,565 Avg Close — Range —