DYAX CORP

CUSIP: 26746E103 Class: CMN

OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AM's Holding History (CIK: 0001132716)

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

Q4 2015
Shares 765,069 Value ($000) $28,782,000 Avg Close — Range —
Q1 2014
Shares 120,000 Value ($000) $1,078,000 Avg Close — Range —