MACK

Merrimack Pharmaceuticals, Inc.
MACK

Overview Fund Activity
Delisted

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

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43 hedge funds and large institutions have $50.5M invested in Merrimack Pharmaceuticals, Inc. in 2021 Q2 according to their latest regulatory filings, with 5 funds opening new positions, 7 increasing their positions, 17 reducing their positions, and 7 closing their positions.

Holders
43
Holders Change
-2
Holders Change %
-4.44%
% of All Funds
0.75%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.02%
New
5
Increased
7
Reduced
17
Closed
7
Calls
$38K
Puts
$317K
Net Calls
-$279K
Net Calls Change
+$43K

Top Buyers

1
WSL
1
Western Standard LLC
California
$8.11M
2
Point72 Asset Management
2
Point72 Asset Management
Connecticut
$1.34M
3
State Street
3
State Street
Massachusetts
$297K
4
Group One Trading
4
Group One Trading
Illinois
$220K
5
CAN
5
Cetera Advisor Networks
California
$86K

Top Sellers

1
Two Sigma Investments
1
Two Sigma Investments
New York
$397K
2
Two Sigma Advisers
2
Two Sigma Advisers
New York
$269K
3
Renaissance Technologies
3
Renaissance Technologies
New York
$652K
4
BlackRock
4
BlackRock
New York
$1.2M
5
Susquehanna International Group
5
Susquehanna International Group
Pennsylvania
$267K
Name Market Value Shares Shares
Change 		Shares
Change %
NM
1
Newtyn Management
New York
$9.87M 1,548,883 – –
WSL
2
Western Standard LLC
California
$8.11M 1,269,558 +257,987 +26%
2L
3
22NW LP
Washington
$7.94M 1,241,896 – –
Vanguard Group
4
Vanguard Group
Pennsylvania
$3.95M 618,609 – –
NCM
5
Nantahala Capital Management
Connecticut
$3.66M 571,946 -37,028 -6%
BCM
6
Bronte Capital Management
Australia
$3.51M 548,836 -1,843 -0.3%
Dimensional Fund Advisors
7
Dimensional Fund Advisors
Texas
$3.31M 517,645 -1,575 -0.3%
SC
8
Sepio Capital
Utah
$1.42M 221,439 +2,532 +1%
Point72 Asset Management
9
Point72 Asset Management
Connecticut
$1.34M 209,563 +209,563 New
WIM
10
Wittenberg Investment Management
Massachusetts
$1.21M 189,294 +3,096 +2%
BlackRock
11
BlackRock
New York
$1.2M 187,090 -68,413 -27%
Renaissance Technologies
12
Renaissance Technologies
New York
$652K 101,970 -86,191 -46%
Geode Capital Management
13
Geode Capital Management
Massachusetts
$617K 96,692 +5,484 +6%
Two Sigma Investments
14
Two Sigma Investments
New York
$397K 62,119 -154,722 -71%
YCM
15
Yakira Capital Management
Connecticut
$387K 60,634 – –
BCM
16
Bridgeway Capital Management
Texas
$378K 59,200 -5,000 -8%
State Street
17
State Street
Massachusetts
$297K 46,556 +35,371 +316%
Two Sigma Advisers
18
Two Sigma Advisers
New York
$269K 42,166 -116,079 -73%
Susquehanna International Group
19
Susquehanna International Group
Pennsylvania
$267K 41,822 -64,507 -61%
Bank of New York Mellon
20
Bank of New York Mellon
New York
$262K 40,996 -1,229 -3%
Marshall Wace
21
Marshall Wace
United Kingdom
$250K 39,150 -52,616 -57%
LPIC
22
LeJeune Puetz Investment Counsel
Michigan
$221K 4,200 – –
Group One Trading
23
Group One Trading
Illinois
$220K 34,493 +34,493 New
Northern Trust
24
Northern Trust
Illinois
$203K 31,678 -4,535 -13%
Citadel Advisors
25
Citadel Advisors
Florida
$122K 19,152 -1,592 -8%
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