MACK

Merrimack Pharmaceuticals, Inc.
MACK

Overview Fund Activity
Delisted

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

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95 hedge funds and large institutions have $200M invested in Merrimack Pharmaceuticals, Inc. in 2013 Q3 according to their latest regulatory filings, with 20 funds opening new positions, 43 increasing their positions, 17 reducing their positions, and 13 closing their positions.

Holders
95
Holders Change
+6
Holders Change %
+6.74%
% of All Funds
3.08%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
20
Increased
43
Reduced
17
Closed
13
Calls
$213K
Puts
$239K
Net Calls
-$26K
Net Calls Change
-$137K

Top Buyers

1
Jennison Associates
1
Jennison Associates
New York
$20.7M
2
T. Rowe Price Associates
2
T. Rowe Price Associates
Maryland
$5.12M
3
Vanguard Group
3
Vanguard Group
Pennsylvania
$17.8M
4
MF
4
Magnetar Financial
Illinois
$6.29M
5
Northern Trust
5
Northern Trust
Illinois
$4.98M

Top Sellers

1
CS
1
Credit Suisse
Switzerland
$11.8M
2
FAM
2
Fred Alger Management
New York
$0
3
Bank of America
3
Bank of America
North Carolina
$1.92M
4
Fidelity Investments
4
Fidelity Investments
Massachusetts
$59.3M
5
Alyeska Investment Group
5
Alyeska Investment Group
Illinois
$0
Name Market Value Shares Shares
Change 		Shares
Change %
Fidelity Investments
1
Fidelity Investments
Massachusetts
$59.3M 15,593,412 -341,846 -2%
Jennison Associates
2
Jennison Associates
New York
$20.7M 5,451,374 +2,310,982 +74%
Vanguard Group
3
Vanguard Group
Pennsylvania
$17.8M 4,696,473 +936,936 +25%
BFA
4
BlackRock Fund Advisors
California
$13.7M 3,607,884 +661,718 +22%
CS
5
Credit Suisse
Switzerland
$11.8M 3,113,650 -1,493,560 -32%
MF
6
Magnetar Financial
Illinois
$6.29M 1,654,837 +900,000 +119%
Westfield Capital Management
7
Westfield Capital Management
Massachusetts
$5.34M 1,409,870 -81,980 -5%
T. Rowe Price Associates
8
T. Rowe Price Associates
Maryland
$5.12M 1,347,097 +1,347,097 New
Northern Trust
9
Northern Trust
Illinois
$4.98M 1,313,717 +814,803 +163%
State Street
10
State Street
Massachusetts
$4.82M 1,267,277 +100,218 +9%
BIT
11
BlackRock Institutional Trust
California
$4.68M 1,234,068 -122,335 -9%
Bank of New York Mellon
12
Bank of New York Mellon
New York
$3.85M 1,014,889 -26,131 -3%
TCM
13
Tekla Capital Management
Massachusetts
$3.84M 1,009,400 +471,800 +88%
FCM
14
Farallon Capital Management
California
$3.06M 805,316 -262,222 -25%
UBS AM
15
UBS AM
Illinois
$2.98M 784,597 +748,700 +2,086%
Deutsche Bank
16
Deutsche Bank
Germany
$2.96M 782,330 +635,062 +431%
O
17
OppenheimerFunds
New York
$2.83M 745,140 -894 -0.1%
Bank of America
18
Bank of America
North Carolina
$1.92M 507,104 -848,787 -63%
TCIM
19
TIAA CREF Investment Management
New York
$1.74M 458,428 +89,690 +24%
Geode Capital Management
20
Geode Capital Management
Massachusetts
$1.63M 428,460 +317,842 +287%
JPMorgan Chase & Co
21
JPMorgan Chase & Co
New York
$1.48M 391,356 +40,628 +12%
PI
22
Putnam Investments
Massachusetts
$1.14M 300,000 – –
BIM
23
BlackRock Investment Management
Delaware
$1.03M 271,998 +35,763 +15%
NI
24
Numeric Investors
Massachusetts
$892K 235,449 +205,200 +678%
CT
25
Cambridge Trust
Massachusetts
$887K 234,003 -5,000 -2%
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