MACK

Merrimack Pharmaceuticals, Inc.
MACK

Overview Fund Activity
Delisted

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

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152 hedge funds and large institutions have $819M invested in Merrimack Pharmaceuticals, Inc. in 2015 Q1 according to their latest regulatory filings, with 24 funds opening new positions, 49 increasing their positions, 47 reducing their positions, and 14 closing their positions.

Holders
152
Holders Change
+9
Holders Change %
+6.29%
% 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
24
Increased
49
Reduced
47
Closed
14
Calls
$3.47M
Puts
$1.85M
Net Calls
+$1.62M
Net Calls Change
+$2.41M

Top Buyers

1
Westfield Capital Management
1
Westfield Capital Management
Massachusetts
$34.5M
2
TCIM
2
TIAA CREF Investment Management
New York
$30.6M
3
Vanguard Group
3
Vanguard Group
Pennsylvania
$103M
4
Balyasny Asset Management
4
Balyasny Asset Management
Illinois
$12M
5
TA
5
Teachers Advisors
New York
$13.4M

Top Sellers

1
Millennium Management
1
Millennium Management
New York
$10.6M
2
Lord, Abbett & Co
2
Lord, Abbett & Co
New Jersey
$0
3
TC
3
TFS Capital
Pennsylvania
$309K
4
Renaissance Technologies
4
Renaissance Technologies
New York
$0
5
CS
5
Credit Suisse
Switzerland
$4.1M
Name Market Value Shares Shares
Change 		Shares
Change %
GCP
51
GSA Capital Partners
United Kingdom
$1.87M 156,973 +156,973 New
CT
52
Cambridge Trust
Massachusetts
$1.82M 153,003 -12,000 -7%
RFC
53
Russell Frank Company
Washington
$1.78M 150,049 -78,054 -34%
Barclays
54
Barclays
United Kingdom
$1.49M 135,044 +126,852 +1,548%
ERIM
55
Eagle Ridge Investment Management
Connecticut
$1.4M 117,500 +25,000 +27%
RCM
56
RA Capital Management
Massachusetts
$1.38M 116,400 – –
Swiss National Bank
57
Swiss National Bank
Switzerland
$1.37M 115,200 +3,900 +4%
ProShare Advisors
58
ProShare Advisors
Maryland
$1.25M 105,126 +13,943 +15%
AQR Capital Management
59
AQR Capital Management
Connecticut
$1.16M 97,900 -5,400 -5%
RhumbLine Advisers
60
RhumbLine Advisers
Massachusetts
$1.15M 97,141 +15,760 +19%
Ameriprise
61
Ameriprise
Minnesota
$1.13M 94,880 -36,689 -28%
OC
62
Oppenheimer & Co
New York
$1.09M 91,400 -1,400 -2%
GBA
63
Garrison Bradford & Associates
New York
$1.08M 90,700 – –
TAM
64
Tocqueville Asset Management
New York
$1.05M 88,000 -2,000 -2%
California Public Employees Retirement System
65
California Public Employees Retirement System
California
$1.01M 101,500 – –
SIP
66
Stoneridge Investment Partners
Pennsylvania
$909K 76,501 -69,988 -48%
MLICM
67
Metropolitan Life Insurance Company (MetLife)
New York
$882K 74,224 – –
OPPM
68
Opus Point Partners Management
New York
$855K 72,009 – –
NFA
69
Nationwide Fund Advisors
Ohio
$854K 71,857 -2,881 -4%
SW
70
SVB Wealth
Massachusetts
$812K 68,365 – –
BPBT
71
Boston Private Bank & Trust
Massachusetts
$812K 68,365 – –
ARTA
72
A.R.T. Advisors
New York
$812K 68,355 +68,355 New
Susquehanna International Group
73
Susquehanna International Group
Pennsylvania
$811K 68,280 -104,699 -61%
Federated Hermes
74
Federated Hermes
Pennsylvania
$753K 63,400 +23,400 +59%
AIG
75
American International Group
New York
$733K 61,733 – –
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