Wellington Management Group
MACK

Wellington Management Group’s Merrimack Pharmaceuticals, Inc. MACK Stock Holding History

Wellington Management Group’s Portfolio MACK Stock Details MACK Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2015
Q4 		– Sell
-52,742
Closed -$3.53M – 2307
2015
Q3 		$3.53M Buy
52,742
+9,950
+23% +$812K ﹤0.01% 1453
2015
Q2 		$4.16M Buy
42,792
+2,504
+6% +$238K ﹤0.01% 1453
2015
Q1 		$3.77M Buy
40,288
+11,962
+42% +$1.02M ﹤0.01% 1526
2014
Q4 		$2.52M Buy
28,326
+7,983
+39% +$582K ﹤0.01% 1630
2014
Q3 		$1.41M Buy
20,343
+17,305
+570% +$925K ﹤0.01% 1748
2014
Q2 		$174K Sell
3,038
-18,938
-86% -$962K ﹤0.01% 2123
2014
Q1 		$871K Buy
+21,976
New +$940K ﹤0.01% 1856

Other funds holding MACK

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
Westfield Capital Management
Westfield Capital Management Boston, Massachusetts $23.8B AUM 49.45% 1-Year Est. Return
BFA
BlackRock Fund Advisors San Francisco, California $542B AUM 18.13% 1-Year Est. Return
TCIM
TIAA CREF Investment Management New York $141B AUM 14.18% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
BIT
BlackRock Institutional Trust San Francisco, California $675B AUM 16.07% 1-Year Est. Return
TA
Teachers Advisors New York $81.7B AUM 13.62% 1-Year Est. Return
PI
Putnam Investments Boston, Massachusetts $75.7B AUM 34.45% 1-Year Est. Return
LIM
Lagoda Investment Management New York $162M AUM 49.7% 1-Year Est. Return

Wellington Management Group's MACK Position: Q4 2015 in Review

Wellington Management Group sold out of Merrimack Pharmaceuticals, Inc. (MACK) in Q4 2015, closing a stake of 52,742 shares — an estimated $3.53M sold.

Wellington Management Group first reported a position in MACK in Q1 2014 and held it in 7 quarters. The position peaked at $4.16M in Q2 2015. 139 funds tracked by Wall St. Rank hold MACK as of Q4 2015.

  • Wellington Management Group reported no remaining Merrimack Pharmaceuticals, Inc. position as of Q4 2015 after selling out during the quarter.
  • Wellington Management Group sold 52,742 Merrimack Pharmaceuticals, Inc. shares in Q4 2015, an estimated $3.53M.
  • Wellington Management Group first reported a position in Merrimack Pharmaceuticals, Inc. in Q1 2014 and held it in 7 quarters.
  • Wellington Management Group's Merrimack Pharmaceuticals, Inc. position peaked at $4.16M in Q2 2015.
  • 139 funds tracked by Wall St. Rank held Merrimack Pharmaceuticals, Inc. as of Q4 2015.

Based on Wellington Management Group's 13F filing for Q4 2015, filed 12 Feb 2016.