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MRNS

Marinus Pharmaceuticals, Inc

Delisted

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

64 hedge funds and large institutions have $48.1M invested in Marinus Pharmaceuticals, Inc in 2019 Q3 according to their latest regulatory filings, with 6 funds opening new positions, 22 increasing their positions, 22 reducing their positions, and 19 closing their positions.

New
Increased
Maintained
Reduced
Closed

162% more call options, than puts

Call options by funds: $1.52M | Put options by funds: $579K

50% more funds holding in top 10

Funds holding in top 10: 23 (+1)

0% more repeat investments, than reductions

Existing positions increased: 22 | Existing positions reduced: 22

17% less funds holding

Funds holding: 7764 (-13)

66% less capital invested

Capital invested by funds: $140M → $48.1M (-$92M)

68% less first-time investments, than exits

New positions opened: 6 | Existing positions closed: 19

Holders
64
Holders Change
-13
Holders Change %
-16.88%
% of All Funds
1.4%
Holding in Top 10
3
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+50%
% of All Funds
0.07%
New
6
Increased
22
Reduced
22
Closed
19
Calls
$1.52M
Puts
$579K
Net Calls
+$938K
Net Calls Change
-$605K
Name Holding Trade Value Shares
Change
Change in
Stake
BNP Paribas Financial Markets
51
BNP Paribas Financial Markets
France
$11.9K +$4.94K +611 +46%
Citigroup
52
Citigroup
New York
$9K -$16.7K -2,072 -59%
Bank of Montreal
53
Bank of Montreal
Ontario, Canada
$7K +$355 +44 +4%
CBT
54
Capital Bank & Trust
California
$6K
MAM
55
Meeder Asset Management
Ohio
$6K +$3.83K +474 +97%
AIP
56
Ameritas Investment Partners
Nebraska
$5K
CG
57
Cutler Group
California
$5K +$1.07K +133 +16%
Simplex Trading
58
Simplex Trading
Illinois
$4K -$131K -16,187 -95%
KBC Group
59
KBC Group
Belgium
$2K -$10.1K -1,255 -80%
VFA
60
Valeo Financial Advisors
Indiana
$2K
TRCT
61
Tower Research Capital (TRC)
New York
$2K +$3.62K +448 New
Jennison Associates
62
Jennison Associates
New York
-$17.6M -1,061,791 Closed
O
63
OrbiMed
New York
-$1.65M -99,525 Closed
ECM
64
Endurant Capital Management
California
-$1.5M -90,547 Closed
FI
65
Fosun International
China
-$1.12M -71,215 Closed
SFM
66
Sphera Funds Management
Israel
-$332K -20,000 Closed
Parallax Volatility Advisers
67
Parallax Volatility Advisers
California
-$321K -19,323 Closed
State of Wisconsin Investment Board
68
State of Wisconsin Investment Board
Wisconsin
-$209K -12,575 Closed
Manulife (Manufacturers Life Insurance)
69
Manulife (Manufacturers Life Insurance)
Ontario, Canada
-$144K -8,686 Closed
B
70
Bailard
California
-$137K -8,250 Closed
Wolverine Trading
71
Wolverine Trading
Illinois
-$40.5K -5,018 Closed
D.E. Shaw & Co
72
D.E. Shaw & Co
New York
-$76K -4,579 Closed
SAM
73
Sectoral Asset Management
Quebec, Canada
-$70K -4,200 Closed
CSS
74
Cubist Systematic Strategies
Connecticut
-$68K -4,072 Closed
PPA
75
Parametric Portfolio Associates
Washington
-$61K -3,696 Closed

MRNS Hedge Fund Activity: Q3 2019 in Review

64 of the 4,560 institutional investors tracked by Wall St. Rank reported a position in Marinus Pharmaceuticals, Inc (MRNS) for Q3 2019, worth a combined $48.1M — down 66% from $140M a quarter earlier.

Sellers outnumbered buyers: 19 funds closed out of MRNS and 6 opened new positions — a net loss of 13 holders — while 22 trimmed existing stakes and 22 added.

The largest buyer was Lion Point Capital, opening a new position worth an estimated $6.97M. The largest seller was Jennison Associates, exiting entirely with an estimated $17.6M sold.

  • 64 institutional investors held Marinus Pharmaceuticals, Inc (MRNS) as of Q3 2019, down from 77 in Q2 2019.
  • Funds reported $48.1M of Marinus Pharmaceuticals, Inc stock for Q3 2019, down 66% quarter-over-quarter.
  • 6 funds opened new Marinus Pharmaceuticals, Inc positions in Q3 2019 and 19 closed out, a net change of -13 holders.
  • The largest Marinus Pharmaceuticals, Inc buyer in Q3 2019 was Lion Point Capital, an estimated $6.97M added.
  • The largest Marinus Pharmaceuticals, Inc seller in Q3 2019 was Jennison Associates, an estimated $17.6M sold.

Based on aggregated 13F filings for Q3 2019.