MACK

Merrimack Pharmaceuticals, Inc.
MACK

Overview Fund Activity
Delisted

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

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150 hedge funds and large institutions have $931M invested in Merrimack Pharmaceuticals, Inc. in 2015 Q2 according to their latest regulatory filings, with 19 funds opening new positions, 66 increasing their positions, 34 reducing their positions, and 19 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
150
Holders Change
-2
Holders Change %
-1.32%
% of All Funds
4.05%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.03%
New
19
Increased
66
Reduced
34
Closed
19
Calls
$6.62M
Puts
$2.61M
Net Calls
+$4.01M
Net Calls Change
+$2.39M

Top Buyers

1
Westfield Capital Management
1
Westfield Capital Management
Massachusetts
$60.4M
2
CC
2
Cannell & Co
New York
$13M
3
Vanguard Group
3
Vanguard Group
Pennsylvania
$116M
4
AIMCA
4
Alberta Investment Management Corp (AIMCo)
Alberta, Canada
$9.52M
5
TCIM
5
TIAA CREF Investment Management
New York
$38.4M

Top Sellers

1
Millennium Management
1
Millennium Management
New York
$3.21M
2
Two Sigma Investments
2
Two Sigma Investments
New York
$574K
3
ACM
3
Alpha Capital Management
Texas
$0
4
SIM
4
Spark Investment Management
New York
$243K
5
Invesco
5
Invesco
Georgia
$3M
Name Holding Trade Value Shares
Change 		Shares
Change %
VKH
101
Virtu KCG Holdings
New York
$277K +$277K +2,851 New
LPL Financial
102
LPL Financial
California
$268K +$49.6K +515 +23%
CHAM
103
Clear Harbor Asset Management
Connecticut
$252K – – –
PNC Financial Services Group
104
PNC Financial Services Group
Pennsylvania
$251K +$3.01K +31 +1%
SIM
105
Spark Investment Management
New York
$243K -$2.64M -27,250 -92%
AMG
106
Asset Management Group
Connecticut
$241K – – –
Principal Financial Group
107
Principal Financial Group
Iowa
$241K +$11.7K +120 +5%
HK
108
Horizon Kinetics
New York
$235K – – –
AA
109
Alesco Advisors
New York
$217K – – –
Renaissance Technologies
110
Renaissance Technologies
New York
$212K +$212K +2,175 New
PPSG
111
Princeton Portfolio Strategies Group
New Jersey
$211K -$30.9K -318 -13%
MCM
112
Murphy Capital Management
New Jersey
$199K – – –
CEP
113
Chicago Equity Partners
Illinois
$198K -$147K -1,514 -43%
Legal & General Group
114
Legal & General Group
United Kingdom
$185K – – –
PAM
115
Panagora Asset Management
Massachusetts
$185K +$185K +1,902 New
Group One Trading
116
Group One Trading
Illinois
$168K +$168K +1,729 New
QIM
117
Quantitative Investment Management
Virginia
$166K +$166K +1,716 New
HF
118
HRT Financial
New York
$142K +$142K +1,468 New
AB
119
Amalgamated Bank
New York
$141K +$141K +1,447 New
Barclays
120
Barclays
United Kingdom
$134K -$1.48M -15,741 -92%
Canada Life
121
Canada Life
Manitoba, Canada
$129K +$10.7K +109 +9%
SG Americas Securities
122
SG Americas Securities
New York
$127K -$84.1K -863 -40%
TDC
123
Thompson Davis & Co
Virginia
$124K – – –
BNP Paribas Financial Markets
124
BNP Paribas Financial Markets
France
$113K +$84.3K +867 +293%
TRCT
125
Tower Research Capital (TRC)
New York
$111K +$110K +1,124 +8,646%
3 4
5
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