MACK

Merrimack Pharmaceuticals, Inc.
MACK

Overview Fund Activity
Delisted

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

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67 hedge funds and large institutions have $126M invested in Merrimack Pharmaceuticals, Inc. in 2023 Q4 according to their latest regulatory filings, with 11 funds opening new positions, 24 increasing their positions, 11 reducing their positions, and 7 closing their positions.

Holders
67
Holders Change
+4
Holders Change %
+6.35%
% of All Funds
0.98%
Holding in Top 10
4
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.06%
New
11
Increased
24
Reduced
11
Closed
7
Calls
$3.67M
Puts
$2.07M
Net Calls
+$1.6M
Net Calls Change
-$484K

Top Buyers

1
ACM
1
ADAR1 Capital Management
Texas
$7.37M
2
WSL
2
Western Standard LLC
California
$29.1M
3
Morgan Stanley
3
Morgan Stanley
New York
$2.94M
4
ICM
4
Indaba Capital Management
California
$3M
5
RA
5
Rosalind Advisors
Ontario, Canada
$805K

Top Sellers

1
CC
1
Centiva Capital
New York
$0
2
Susquehanna International Group
2
Susquehanna International Group
Pennsylvania
$1.08M
3
KCM
3
Kennedy Capital Management
Missouri
$620K
4
Dimensional Fund Advisors
4
Dimensional Fund Advisors
Texas
$5.84M
5
FLC
5
Fifth Lane Capital
Texas
$0
Name Market Value Shares Shares
Change 		Shares
Change %
WSL
1
Western Standard LLC
California
$29.1M 2,172,513 +278,500 +15%
NM
2
Newtyn Management
New York
$25.1M 1,873,694 – –
BlackRock
3
BlackRock
New York
$9.97M 743,623 +52,806 +8%
Vanguard Group
4
Vanguard Group
Pennsylvania
$8.17M 608,954 +8,610 +1%
MAP
5
Madison Avenue Partners
New York
$7.42M 553,085 – –
ACM
6
ADAR1 Capital Management
Texas
$7.37M 549,418 +549,418 New
Dimensional Fund Advisors
7
Dimensional Fund Advisors
Texas
$5.84M 435,645 -13,107 -3%
SC
8
Sepio Capital
Utah
$4.11M 306,680 – –
SCM
9
Sio Capital Management
New York
$3.87M 288,466 – –
Geode Capital Management
10
Geode Capital Management
Massachusetts
$3.49M 259,946 +8,361 +3%
ICM
11
Indaba Capital Management
California
$3M 223,459 +86,657 +63%
Morgan Stanley
12
Morgan Stanley
New York
$2.94M 219,076 +125,899 +135%
WIM
13
Wittenberg Investment Management
Massachusetts
$2.82M 210,239 +500 +0.2%
State Street
14
State Street
Massachusetts
$2.64M 196,705 +4,861 +3%
Northern Trust
15
Northern Trust
Illinois
$1.57M 116,909 +1,540 +1%
Bank of New York Mellon
16
Bank of New York Mellon
New York
$1.34M 100,197 +494 +0.5%
Susquehanna International Group
17
Susquehanna International Group
Pennsylvania
$1.08M 80,641 -76,012 -49%
RA
18
Rosalind Advisors
Ontario, Canada
$805K 60,000 +60,000 New
YCM
19
Yakira Capital Management
Connecticut
$726K 54,118 – –
Renaissance Technologies
20
Renaissance Technologies
New York
$656K 48,900 +48,900 New
KCM
21
Kennedy Capital Management
Missouri
$620K 46,202 -47,506 -51%
Goldman Sachs
22
Goldman Sachs
New York
$472K 35,197 +244 +0.7%
BCM
23
Bridgeway Capital Management
Texas
$459K 34,200 – –
Charles Schwab
24
Charles Schwab
California
$397K 29,628 – –
Two Sigma Investments
25
Two Sigma Investments
New York
$293K 21,834 +21,834 New
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