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 %
GC
26
Guggenheim Capital
Illinois
$4.97M 53,149 +10,015 +23%
Invesco
27
Invesco
Georgia
$4.69M 50,142 +8,845 +21%
Two Sigma Investments
28
Two Sigma Investments
New York
$4.52M 48,318 -2,447 -5%
EI
29
EAM Investors
California
$4.42M 47,283 -5,112 -10%
American Century Companies
30
American Century Companies
Missouri
$4.25M 45,415 +25,783 +131%
William Blair & Company
31
William Blair & Company
Illinois
$4.1M 43,913 -4,989 -10%
CS
32
Credit Suisse
Switzerland
$4.1M 43,848 -27,542 -39%
CC
33
Cannell & Co
New York
$4M 42,795 +1,271 +3%
BA
34
BlackRock Advisors
Delaware
$4M 42,770 -937 -2%
Wellington Management Group
35
Wellington Management Group
Massachusetts
$3.77M 40,288 +11,962 +42%
CCM
36
Cadence Capital Management
Massachusetts
$3.73M 39,880 -4,454 -10%
QI
37
QS Investors
New York
$3.59M 38,445 +38,445 New
Charles Schwab
38
Charles Schwab
California
$3.59M 38,378 +1,735 +5%
Goldman Sachs
39
Goldman Sachs
New York
$3.38M 36,149 -3,004 -8%
BIM
40
BlackRock Investment Management
Delaware
$3.25M 34,802 +564 +2%
ACM
41
Alpha Capital Management
Texas
$3.17M 35,602 – –
JPMorgan Chase & Co
42
JPMorgan Chase & Co
New York
$3.13M 33,489 +108 +0.3%
AIMCA
43
Alberta Investment Management Corp (AIMCo)
Alberta, Canada
$2.85M 30,501 +30,501 New
SIM
44
Spark Investment Management
New York
$2.78M 29,754 +6,291 +27%
Brown Advisory
45
Brown Advisory
Maryland
$2.74M 29,332 +29,332 New
UBS Group
46
UBS Group
Switzerland
$2.55M 27,325 +6,037 +28%
Two Sigma Advisers
47
Two Sigma Advisers
New York
$2.25M 24,051 +5,755 +31%
California State Teachers Retirement System (CalSTRS)
48
California State Teachers Retirement System (CalSTRS)
California
$2.14M 22,871 -254 -1%
JPMPWA
49
J.P. Morgan Private Wealth Advisors
California
$1.92M 20,577 – –
AllianceBernstein
50
AllianceBernstein
Tennessee
$1.91M 20,476 – –
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