MEDICINES CO

CUSIP: 584688105 Class: COM

IRIDIAN ASSET MANAGEMENT LLC/CT's Holding History (CIK: 0001033427)

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

Q4 2019
Shares 1,448,662 Value ($000) $123,049 Avg Close — Range —
Q3 2019
Shares 3,001,362 Value ($000) $150,068 Avg Close — Range —
Q2 2019
Shares 3,454,019 Value ($000) $125,968 Avg Close — Range —
Q1 2019
Shares 3,817,544 Value ($000) $106,700 Avg Close — Range —
Q4 2018
Shares 3,296,816 Value ($000) $63,101 Avg Close — Range —
Q3 2018
Shares 1,879,587 Value ($000) $56,218 Avg Close — Range —
Q2 2018
Shares 2,104,239 Value ($000) $77,226 Avg Close — Range —
Q1 2018
Shares 2,158,933 Value ($000) $71,115 Avg Close — Range —
Q4 2017
Shares 2,170,215 Value ($000) $59,334 Avg Close — Range —
Q3 2017
Shares 1,762,038 Value ($000) $65,266 Avg Close — Range —
Q2 2017
Shares 3,677,746 Value ($000) $139,791 Avg Close — Range —
Q1 2017
Shares 3,022,681 Value ($000) $147,809 Avg Close — Range —
Q4 2016
Shares 948,420 Value ($000) $32,189 Avg Close — Range —