MACK

Merrimack Pharmaceuticals, Inc.
MACK

Overview Fund Activity
Delisted

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

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41 hedge funds and large institutions have $49.5M invested in Merrimack Pharmaceuticals, Inc. in 2022 Q1 according to their latest regulatory filings, with 4 funds opening new positions, 8 increasing their positions, 11 reducing their positions, and 1 closing their positions.

Holders
41
Holders Change
+3
Holders Change %
+7.89%
% of All Funds
0.65%
Holding in Top 10
1
Holding in Top 10 Change
+1
Holding in Top 10 Change %
%
% of All Funds
0.02%
New
4
Increased
8
Reduced
11
Closed
1
Calls
$276K
Puts
$1.1M
Net Calls
-$827K
Net Calls Change
-$17K

Top Buyers

1
SC
1
Sepio Capital
Utah
$1.88M
2
NM
2
Newtyn Management
New York
$10.8M
3
BCM
3
Bronte Capital Management
Australia
$3.66M
4
Simplex Trading
4
Simplex Trading
Illinois
$239K
5
YCM
5
Yakira Capital Management
Connecticut
$561K

Top Sellers

1
NCM
1
Nantahala Capital Management
Connecticut
$3.27M
2
Renaissance Technologies
2
Renaissance Technologies
New York
$0
3
LPIC
3
LeJeune Puetz Investment Counsel
Michigan
$112K
4
Vanguard Group
4
Vanguard Group
Pennsylvania
$3.85M
5
Dimensional Fund Advisors
5
Dimensional Fund Advisors
Texas
$3.05M
Name Market Value Shares Shares
Change 		Shares
Change %
NM
1
Newtyn Management
New York
$10.8M 1,713,612 +164,729 +11%
2L
2
22NW LP
Washington
$7.86M 1,241,896 – –
WSL
3
Western Standard LLC
California
$6.8M 1,172,463 – –
Vanguard Group
4
Vanguard Group
Pennsylvania
$3.85M 608,204 -8,644 -1%
BCM
5
Bronte Capital Management
Australia
$3.66M 578,313 +40,729 +8%
NCM
6
Nantahala Capital Management
Connecticut
$3.27M 516,817 -53,154 -9%
Dimensional Fund Advisors
7
Dimensional Fund Advisors
Texas
$3.05M 482,484 -6,203 -1%
Point72 Asset Management
8
Point72 Asset Management
Connecticut
$2.16M 341,685 – –
SC
9
Sepio Capital
Utah
$1.88M 296,546 +217,717 +276%
BlackRock
10
BlackRock
New York
$1.34M 211,439 -1,224 -0.6%
WIM
11
Wittenberg Investment Management
Massachusetts
$1.19M 188,694 – –
Geode Capital Management
12
Geode Capital Management
Massachusetts
$630K 99,662 +2,970 +3%
YCM
13
Yakira Capital Management
Connecticut
$561K 88,683 +15,233 +21%
BCM
14
Bridgeway Capital Management
Texas
$374K 59,200 – –
State Street
15
State Street
Massachusetts
$294K 46,556 – –
Bank of New York Mellon
16
Bank of New York Mellon
New York
$259K 40,996 – –
Susquehanna International Group
17
Susquehanna International Group
Pennsylvania
$239K 37,730 +10,431 +38%
Simplex Trading
18
Simplex Trading
Illinois
$239K 37,819 +37,819 New
Two Sigma Investments
19
Two Sigma Investments
New York
$194K 30,739 -5,227 -15%
Northern Trust
20
Northern Trust
Illinois
$159K 25,063 -88 -0.3%
Two Sigma Advisers
21
Two Sigma Advisers
New York
$147K 23,181 -2,500 -10%
LPIC
22
LeJeune Puetz Investment Counsel
Michigan
$112K 2,200 -1,400 -39%
Brown Advisory
23
Brown Advisory
Maryland
$95K 15,029 – –
RCM
24
Radnor Capital Management
Pennsylvania
$84K 13,332 – –
Group One Trading
25
Group One Trading
Illinois
$67K 10,586 +10,586 New
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