MACK

Merrimack Pharmaceuticals, Inc.
MACK

Overview Fund Activity
Delisted

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

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102 hedge funds and large institutions have $268M invested in Merrimack Pharmaceuticals, Inc. in 2014 Q1 according to their latest regulatory filings, with 17 funds opening new positions, 36 increasing their positions, 24 reducing their positions, and 7 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
102
Holders Change
+9
Holders Change %
+9.68%
% of All Funds
2.95%
Holding in Top 10
1
Holding in Top 10 Change
+1
Holding in Top 10 Change %
%
% of All Funds
0.03%
New
17
Increased
36
Reduced
24
Closed
7
Calls
$7.52M
Puts
$2.71M
Net Calls
+$4.81M
Net Calls Change
+$3.04M

Top Buyers

1
State Street
1
State Street
Massachusetts
$23.4M
2
PI
2
Putnam Investments
Massachusetts
$5.14M
3
Adage Capital Partners
3
Adage Capital Partners
Massachusetts
$1.51M
4
Vanguard Group
4
Vanguard Group
Pennsylvania
$26.6M
5
Group One Trading
5
Group One Trading
Illinois
$1.2M

Top Sellers

1
MF
1
Magnetar Financial
Illinois
$1.89M
2
Balyasny Asset Management
2
Balyasny Asset Management
Illinois
$1.61M
3
Jennison Associates
3
Jennison Associates
New York
$29.4M
4
CS
4
Credit Suisse
Switzerland
$1.04M
5
Susquehanna International Group
5
Susquehanna International Group
Pennsylvania
$1.33M
Name Holding Trade Value Shares
Change 		Shares
Change %
BG
101
BlackRock Group
United Kingdom
$3K -$21K -560 -88%
Manulife (Manufacturers Life Insurance)
102
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$374 -$12 -307 -3%
SIM
103
SSI Investment Management
California
– -$365K -8,696 Closed
D.E. Shaw & Co
104
D.E. Shaw & Co
New York
– -$113K -2,683 Closed
Two Sigma Investments
105
Two Sigma Investments
New York
– -$101K -2,405 Closed
AB
106
Amalgamated Bank
New York
– -$54K -1,275 Closed
Invesco
107
Invesco
Georgia
– -$32K -763 Closed
Citadel Advisors
108
Citadel Advisors
Florida
– -$31K -729 Closed
PAM
109
Panagora Asset Management
Massachusetts
– -$20K -486 Closed
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5