MEDICINES CO

CUSIP: 584688AC9 Class: 1.38% 06/01/17

PROSPECTOR PARTNERS LLC's Holding History (CIK: 0001080380)

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

Q4 2016
Shares 232,000 Value ($000) $306 Avg Close — Range —
Q3 2016
Shares 232,000 Value ($000) $333 Avg Close — Range —
Q2 2016
Shares 332,000 Value ($000) $444 Avg Close — Range —
Q1 2016
Shares 1,485,000 Value ($000) $1,887 Avg Close — Range —
Q4 2015
Shares 1,485,000 Value ($000) $2,113 Avg Close — Range —
Q3 2015
Shares 2,185,000 Value ($000) $3,181 Avg Close — Range —
Q2 2015
Shares 2,235,000 Value ($000) $2,660 Avg Close — Range —
Q1 2015
Shares 4,200,000 Value ($000) $4,980 Avg Close — Range —