MACK

Merrimack Pharmaceuticals, Inc.
MACK

Overview Fund Activity
Delisted

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

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50 hedge funds and large institutions have $91M invested in Merrimack Pharmaceuticals, Inc. in 2023 Q1 according to their latest regulatory filings, with 10 funds opening new positions, 14 increasing their positions, 9 reducing their positions, and 7 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
50
Holders Change
+3
Holders Change %
+6.38%
% of All Funds
0.8%
Holding in Top 10
2
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-33.33%
% of All Funds
0.03%
New
10
Increased
14
Reduced
9
Closed
7
Calls
$6.79M
Puts
$3.96M
Net Calls
+$2.84M
Net Calls Change
-$20K

Top Buyers

1
MAP
1
Madison Avenue Partners
New York
$6.8M
2
Invesco
2
Invesco
Georgia
$2.59M
3
WSL
3
Western Standard LLC
California
$20.6M
4
NM
4
Newtyn Management
New York
$23M
5
Marshall Wace
5
Marshall Wace
United Kingdom
$1.21M

Top Sellers

1
2L
1
22NW LP
Washington
$0
2
Vanguard Group
2
Vanguard Group
Pennsylvania
$5.64M
3
Susquehanna International Group
3
Susquehanna International Group
Pennsylvania
$1.71M
4
O
4
OrbiMed
New York
$0
5
PVI
5
Pura Vida Investments
New York
$0
Name Holding Trade Value Shares
Change 		Shares
Change %
KCM
26
Kennedy Capital Management
Missouri
$169K +$169K +13,758 New
Belvedere Trading
27
Belvedere Trading
Illinois
$134K -$345K -28,102 -72%
Citadel Advisors
28
Citadel Advisors
Florida
$104K +$104K +8,491 New
Barclays
29
Barclays
United Kingdom
$67K +$65.3K +5,303 +3,928%
MWM
30
Mascoma Wealth Management
New Hampshire
$62.1K – – –
Lazard Asset Management
31
Lazard Asset Management
New York
$60K +$60K +4,951 New
UBS Group
32
UBS Group
Switzerland
$38.4K +$28.9K +2,353 +304%
DWA
33
Dorsey Wright & Associates
California
$22.1K +$22.1K +1,799 New
WB
34
Webster Bank
Connecticut
$18.8K – – –
Bank of America
35
Bank of America
North Carolina
$18.3K -$2.29K -186 -11%
NA
36
NewEdge Advisors
Louisiana
$17.3K – – –
TRCT
37
Tower Research Capital (TRC)
New York
$15K -$24.4K -2,007 -62%
DFCM
38
Dark Forest Capital Management
Puerto Rico
$13K +$13K +1,060 New
BWP
39
Baldwin Wealth Partners
Massachusetts
$6.15K – – –
SSB
40
Sandy Spring Bank
Maryland
$3.69K – – –
Kayne Anderson Rudnick Investment Management
41
Kayne Anderson Rudnick Investment Management
California
$3.69K – – –
RA
42
Rise Advisors
New York
$3.34K – – –
Wells Fargo
43
Wells Fargo
California
$2.09K +$25 +2 +1%
Fidelity Investments
44
Fidelity Investments
Massachusetts
$2.09K +$2.09K +170 New
TFGT
45
TS Financial Group (TSFG)
Illinois
$2K – – –
Federated Hermes
46
Federated Hermes
Pennsylvania
$1.11K – – –
HCM
47
Horrell Capital Management
Arkansas
$1K – – –
AAG
48
Armstrong Advisory Group
Massachusetts
$554 – – –
AF
49
Advisornet Financial
Minnesota
$246 – – –
2L
50
22NW LP
Washington
– -$11.6M -1,015,048 Closed
1
2
3