MERRIMACK PHARMACEUTICALS IN

CUSIP: 590328100 Class: CMN

STATE OF WISCONSIN INVESTMENT BOARD's Holding History (CIK: 0000854157)

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

Q2 2017
Shares 108,000 Value ($000) $134 Avg Close — Range —
Q3 2015
Shares 300,000 Value ($000) $2,553 Avg Close — Range —