MACK

Merrimack Pharmaceuticals, Inc.
MACK

Overview Fund Activity
Delisted

MACK was delisted on the 17th of May, 2024.

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135 hedge funds and large institutions have $663M invested in Merrimack Pharmaceuticals, Inc. in 2015 Q3 according to their latest regulatory filings, with 12 funds opening new positions, 55 increasing their positions, 43 reducing their positions, and 26 closing their positions.

Holders
135
Holders Change
-15
Holders Change %
-10%
% of All Funds
3.77%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.03%
New
12
Increased
55
Reduced
43
Closed
26
Calls
$4.05M
Puts
$2.43M
Net Calls
+$1.62M
Net Calls Change
-$2.39M

Top Buyers

1
Westfield Capital Management
1
Westfield Capital Management
Massachusetts
$55.4M
2
TCIM
2
TIAA CREF Investment Management
New York
$38.8M
3
Citadel Advisors
3
Citadel Advisors
Florida
$5.32M
4
TA
4
Teachers Advisors
New York
$14.7M
5
VOYA Investment Management
5
VOYA Investment Management
Georgia
$12M

Top Sellers

1
Balyasny Asset Management
1
Balyasny Asset Management
Illinois
$0
2
Fuller & Thaler Asset Management
2
Fuller & Thaler Asset Management
California
$0
3
EI
3
EAM Investors
California
$0
4
CCM
4
Cadence Capital Management
Massachusetts
$0
5
Millennium Management
5
Millennium Management
New York
$0
Name Market Value Shares Shares
Change 		Shares
Change %
Fidelity Investments
1
Fidelity Investments
Massachusetts
$142M 16,712,869 +209,219 +1%
Vanguard Group
2
Vanguard Group
Pennsylvania
$83.1M 9,766,632 +387,345 +4%
Westfield Capital Management
3
Westfield Capital Management
Massachusetts
$55.4M 6,511,561 +1,629,894 +33%
BFA
4
BlackRock Fund Advisors
California
$44.4M 5,221,783 -14,121 -0.3%
TCIM
5
TIAA CREF Investment Management
New York
$38.8M 4,564,603 +1,461,283 +47%
State Street
6
State Street
Massachusetts
$34.4M 4,044,084 +58,975 +1%
BIT
7
BlackRock Institutional Trust
California
$22M 2,581,970 +259,818 +11%
LIM
8
Lagoda Investment Management
New York
$20.1M 2,357,558 +257,418 +12%
Deutsche Bank
9
Deutsche Bank
Germany
$15.1M 1,769,193 -43,305 -2%
TA
10
Teachers Advisors
New York
$14.7M 1,724,295 +448,628 +35%
VOYA Investment Management
11
VOYA Investment Management
Georgia
$12M 1,404,436 +434,796 +45%
UBS AM
12
UBS AM
Illinois
$11.1M 1,306,844 +428,700 +49%
Northern Trust
13
Northern Trust
Illinois
$10.5M 1,230,872 -573 -0%
CC
14
Cannell & Co
New York
$8.95M 1,051,178 – –
Connor, Clark & Lunn Investment Management (CC&L)
15
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
$8.64M 1,014,850 -10,750 -1%
Morgan Stanley
16
Morgan Stanley
New York
$8.23M 967,168 +148,609 +18%
TCM
17
Tekla Capital Management
Massachusetts
$7.27M 853,787 +286,000 +50%
PI
18
Putnam Investments
Massachusetts
$6.58M 773,666 +5,688 +0.7%
AIMCA
19
Alberta Investment Management Corp (AIMCo)
Alberta, Canada
$6.55M 770,080 – –
CNB
20
City National Bank
California
$5.76M 677,254 -272,750 -29%
Geode Capital Management
21
Geode Capital Management
Massachusetts
$5.61M 659,504 -13,687 -2%
Bank of New York Mellon
22
Bank of New York Mellon
New York
$5.46M 642,019 -167,577 -21%
Citadel Advisors
23
Citadel Advisors
Florida
$5.32M 625,003 +625,003 New
GC
24
Guggenheim Capital
Illinois
$4.05M 476,339 -21,372 -4%
PCM
25
Portolan Capital Management
Massachusetts
$3.78M 444,550 -219,748 -33%
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