MRNS

Marinus Pharmaceuticals, Inc
MRNS

Overview Fund Activity
Delisted

MRNS was delisted on the 10th of February, 2025.

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38 hedge funds and large institutions have $76.3M invested in Marinus Pharmaceuticals, Inc in 2015 Q4 according to their latest regulatory filings, with 10 funds opening new positions, 13 increasing their positions, 7 reducing their positions, and 10 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
38
Holders Change
–
Holders Change %
0%
% of All Funds
1%
Holding in Top 10
3
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+50%
% of All Funds
0.08%
New
10
Increased
13
Reduced
7
Closed
10
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

1
O
1
OrbiMed
New York
$7.37M
2
Franklin Resources
2
Franklin Resources
California
$14.5M
3
ACH
3
ArrowMark Colorado Holdings
Colorado
$6.48M
4
DCM
4
DAFNA Capital Management
California
$4.33M
5
SFM
5
Sphera Funds Management
Israel
$4.36M

Top Sellers

1
AIC
1
AWM Investment Company
New York
$0
2
Goldman Sachs
2
Goldman Sachs
New York
$0
3
IHM
3
Iguana Healthcare Management
New York
$0
4
Morgan Stanley
4
Morgan Stanley
New York
$2K
5
CS
5
Credit Suisse
Switzerland
$280K
Name Holding Trade Value Shares
Change 		Shares
Change %
MC
26
Menta Capital
California
$112K -$45.6K -1,487 -29%
HCM
27
Harvey Capital Management
Florida
$106K -$87.1K -2,875 -45%
BFA
28
BlackRock Fund Advisors
California
$106K +$12.5K +408 +13%
BFM
29
Boothbay Fund Management
New York
$86K +$86K +2,815 New
TC
30
TFS Capital
Pennsylvania
$78K -$111K -3,598 -59%
UBS Group
31
UBS Group
Switzerland
$39K +$34.1K +1,128 +696%
CGT
32
Capital Guardian Trust
California
$31K – – –
BJ
33
BlackRock Japan
Japan
$19K +$19K +629 New
Walleye Trading
34
Walleye Trading
New York
$13K – – –
BIM
35
BlackRock Investment Management
Delaware
$7K +$799 +25 +13%
Deutsche Bank
36
Deutsche Bank
Germany
$7K +$7K +254 New
Morgan Stanley
37
Morgan Stanley
New York
$2K -$607K -17,001 -100%
Wells Fargo
38
Wells Fargo
California
$1K – – –
AIC
39
AWM Investment Company
New York
– -$1.02M -30,625 Closed
Goldman Sachs
40
Goldman Sachs
New York
– -$641K -19,220 Closed
IHM
41
Iguana Healthcare Management
New York
– -$626K -18,750 Closed
NI
42
Numeric Investors
Massachusetts
– -$197K -5,907 Closed
PP
43
PDT Partners
New York
– -$98K -2,950 Closed
CSS
44
Cubist Systematic Strategies
Connecticut
– -$17K -523 Closed
MFS
45
MSI Financial Services
Massachusetts
– -$8K -250 Closed
PCM
46
Prelude Capital Management
New York
– -$3K -100 Closed
TRCT
47
Tower Research Capital (TRC)
New York
– -$2K -50 Closed
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