MACK

Merrimack Pharmaceuticals, Inc.
MACK

Overview Fund Activity
Delisted

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

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62 hedge funds and large institutions have $98.5M invested in Merrimack Pharmaceuticals, Inc. in 2023 Q2 according to their latest regulatory filings, with 18 funds opening new positions, 18 increasing their positions, 10 reducing their positions, and 6 closing their positions.

Holders
62
Holders Change
+12
Holders Change %
+24%
% of All Funds
0.98%
Holding in Top 10
2
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.03%
New
18
Increased
18
Reduced
10
Closed
6
Calls
$2.38M
Puts
$407K
Net Calls
+$1.98M
Net Calls Change
-$860K

Top Buyers

1
BlackRock
1
BlackRock
New York
$8.32M
2
State Street
2
State Street
Massachusetts
$2.14M
3
Geode Capital Management
3
Geode Capital Management
Massachusetts
$3M
4
Vanguard Group
4
Vanguard Group
Pennsylvania
$6.85M
5
Northern Trust
5
Northern Trust
Illinois
$1.43M

Top Sellers

1
Invesco
1
Invesco
Georgia
$0
2
NCM
2
Nantahala Capital Management
Connecticut
$1.37M
3
BFM
3
Boothbay Fund Management
New York
$571K
4
Susquehanna International Group
4
Susquehanna International Group
Pennsylvania
$905K
5
Jane Street
5
Jane Street
New York
$0
Name Market Value Shares Shares
Change 		Shares
Change %
NM
1
Newtyn Management
New York
$23M 1,873,694 – –
WSL
2
Western Standard LLC
California
$20.6M 1,672,463 – –
BlackRock
3
BlackRock
New York
$8.32M 676,290 +454,037 +204%
Vanguard Group
4
Vanguard Group
Pennsylvania
$6.85M 556,798 +98,277 +21%
MAP
5
Madison Avenue Partners
New York
$6.8M 553,085 – –
Dimensional Fund Advisors
6
Dimensional Fund Advisors
Texas
$5.66M 459,960 -6,180 -1%
SC
7
Sepio Capital
Utah
$3.62M 294,545 – –
SCM
8
Sio Capital Management
New York
$3.58M 290,749 +17,906 +7%
Geode Capital Management
9
Geode Capital Management
Massachusetts
$3M 243,802 +113,638 +87%
WIM
10
Wittenberg Investment Management
Massachusetts
$2.52M 204,994 +7,000 +4%
State Street
11
State Street
Massachusetts
$2.14M 174,105 +123,549 +244%
Northern Trust
12
Northern Trust
Illinois
$1.43M 115,992 +88,044 +315%
NCM
13
Nantahala Capital Management
Connecticut
$1.37M 111,148 -80,118 -42%
Bank of New York Mellon
14
Bank of New York Mellon
New York
$1.23M 100,317 +25,437 +34%
KCM
15
Kennedy Capital Management
Missouri
$1.13M 91,506 +77,748 +565%
Marshall Wace
16
Marshall Wace
United Kingdom
$1.07M 87,037 -11,218 -11%
Morgan Stanley
17
Morgan Stanley
New York
$1.02M 82,685 +28,525 +53%
Susquehanna International Group
18
Susquehanna International Group
Pennsylvania
$905K 73,615 -65,380 -47%
YCM
19
Yakira Capital Management
Connecticut
$789K 64,118 -8,000 -11%
BFM
20
Boothbay Fund Management
New York
$571K 46,437 -70,999 -60%
BCM
21
Bridgeway Capital Management
Texas
$421K 34,200 – –
Charles Schwab
22
Charles Schwab
California
$364K 29,628 +29,628 New
Connor, Clark & Lunn Investment Management (CC&L)
23
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
$177K 14,405 +14,405 New
Goldman Sachs
24
Goldman Sachs
New York
$174K 14,142 -20,756 -59%
Nuveen Asset Management
25
Nuveen Asset Management
Illinois
$169K 13,719 +13,719 New
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