MEDICINES CO

CUSIP: 584688105 Class: COM

AQR Arbitrage LLC's Holding History (CIK: 0001167456)

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

Q4 2019
Shares 1,528,417 Value ($000) $129,824 Avg Close — Range —
Q4 2018
Shares 80,854 Value ($000) $1,548 Avg Close — Range —