DYAX CORP

CUSIP: 26746E103 Class: CMN

PRICE T ROWE ASSOCIATES INC /MD/'s Holding History (CIK: 0000080255)

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

Q4 2015
Shares 4,403,812 Value ($000) $165,671 Avg Close — Range —
Q3 2015
Shares 4,598,475 Value ($000) $87,785 Avg Close — Range —
Q2 2015
Shares 4,612,666 Value ($000) $122,236 Avg Close — Range —
Q1 2015
Shares 4,273,126 Value ($000) $71,596 Avg Close — Range —
Q4 2014
Shares 1,931,200 Value ($000) $27,153 Avg Close — Range —
Q3 2014
Shares 1,964,900 Value ($000) $19,885 Avg Close — Range —
Q2 2014
Shares 1,973,500 Value ($000) $18,946 Avg Close — Range —
Q1 2014
Shares 1,988,100 Value ($000) $17,853 Avg Close — Range —
Q4 2013
Shares 47,100 Value ($000) $355 Avg Close — Range —
Q3 2013
Shares 56,300 Value ($000) $386 Avg Close — Range —
Q2 2013
Shares 48,300 Value ($000) $167 Avg Close — Range —