MACK

Merrimack Pharmaceuticals, Inc.
MACK

Overview Fund Activity
Delisted

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

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139 hedge funds and large institutions have $636M invested in Merrimack Pharmaceuticals, Inc. in 2015 Q4 according to their latest regulatory filings, with 25 funds opening new positions, 48 increasing their positions, 39 reducing their positions, and 20 closing their positions.

Holders
139
Holders Change
+4
Holders Change %
+2.96%
% of All Funds
3.65%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.03%
New
25
Increased
48
Reduced
39
Closed
20
Calls
$539K
Puts
$723K
Net Calls
-$184K
Net Calls Change
-$1.81M

Top Buyers

1
PI
1
Putnam Investments
Massachusetts
$17.5M
2
Millennium Management
2
Millennium Management
New York
$11.2M
3
TA
3
Teachers Advisors
New York
$21.1M
4
Westfield Capital Management
4
Westfield Capital Management
Massachusetts
$57.3M
5
Fidelity Investments
5
Fidelity Investments
Massachusetts
$137M

Top Sellers

1
VOYA Investment Management
1
VOYA Investment Management
Georgia
$4.33M
2
Citadel Advisors
2
Citadel Advisors
Florida
$0
3
State Street
3
State Street
Massachusetts
$27.1M
4
PCM
4
Portolan Capital Management
Massachusetts
$0
5
Wellington Management Group
5
Wellington Management Group
Massachusetts
$0
Name Holding Trade Value Shares
Change 		Shares
Change %
AA
101
Alesco Advisors
New York
$139K – – –
SEI Investments
102
SEI Investments
Pennsylvania
$137K -$365K -5,870 -73%
MCM
103
Murphy Capital Management
New Jersey
$127K – – –
NEPWA
104
New England Private Wealth Advisors
Massachusetts
$126K +$126K +2,024 New
PPA
105
Parametric Portfolio Associates
Washington
$118K -$200K -3,215 -63%
CSS
106
Cubist Systematic Strategies
Connecticut
$117K +$117K +1,876 New
Simplex Trading
107
Simplex Trading
Illinois
$101K +$101K +1,630 New
FM
108
Family Management
New York
$95K -$15.8K -254 -14%
OC
109
Oppenheimer & Co
New York
$89K +$89K +1,436 New
AB
110
Amalgamated Bank
New York
$87K -$4.29K -69 -5%
Jane Street
111
Jane Street
New York
$85K -$488K -7,857 -85%
Bank of Montreal
112
Bank of Montreal
Ontario, Canada
$80K +$1.93K +31 +2%
BAM
113
Brave Asset Management
New Jersey
$79K +$15.8K +254 +25%
PCM
114
Palisade Capital Management
New Jersey
$79K +$79K +1,271 New
Canada Life
115
Canada Life
Manitoba, Canada
$75K – – –
Teacher Retirement System of Texas
116
Teacher Retirement System of Texas
Texas
$73K -$22.8K -368 -24%
Creative Planning
117
Creative Planning
Kansas
$66K -$6.38K -102 -9%
BlackRock
118
BlackRock
New York
$27K +$1.49K +24 +6%
PAM
119
Panagora Asset Management
Massachusetts
$23K -$123K -1,977 -84%
Zurich Cantonal Bank
120
Zurich Cantonal Bank
Switzerland
$21K +$12.5K +205 +146%
Lazard Asset Management
121
Lazard Asset Management
New York
$21K +$21K +353 New
PMFA
122
Plante Moran Financial Advisors
Michigan
$16K -$16K -254 -50%
DADC
123
D.A. Davidson & Co
Montana
$16K +$1.59K +26 +11%
MFS
124
MSI Financial Services
Massachusetts
$16K +$8K +127 +100%
Barclays
125
Barclays
United Kingdom
$13K -$201K -3,639 -94%
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5
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