MERRIMACK PHARMACEUTICALS IN

CUSIP: 590328100 Class: CMN

SEI INVESTMENTS CO's Holding History (CIK: 0000350894)

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

Q1 2017
Shares 2,206 Value ($000) $7 Avg Close — Range —
Q4 2016
Shares 53,390 Value ($000) $218 Avg Close — Range —
Q3 2016
Shares 47,020 Value ($000) $299 Avg Close — Range —
Q2 2016
Shares 47,020 Value ($000) $253 Avg Close — Range —
Q1 2016
Shares 24,690 Value ($000) $206 Avg Close — Range —
Q4 2015
Shares 17,330 Value ($000) $137 Avg Close — Range —
Q3 2015
Shares 63,513 Value ($000) $540 Avg Close — Range —