FCHI8,072.13-0.39%
GDAXI23,954.56-0.27%
DJI48,809.47-0.68%
XLE58.872.00%
STOXX50E5,816.48-0.34%
XLF51.85-0.01%
FTSE10,213.11-1.16%
IXIC24,573.93-0.36%
RUT2,733.32-0.82%
GSPC7,119.08-0.28%
Temp29.4°C
UV12.1
Feels34.4°C
Humidity75%
Wind23 km/h
Air QualityAQI 1
Cloud Cover50%
Rain0%
Sunrise05:58 AM
Sunset06:47 PM
Time12:50 PM
Markets
13F
Insiders
Press Releases
Companies
People
Cayman Journal
29 April 2026
CUSIP 56854Q200

MARINUS PHARMACEUTICALS INC

141 institutions · $207.8M total · 69,029,054 shares

#ManagerSharesValue% of TotalPeriod
1Avoro Capital Advisors LLC4,140,607$37.4M5.99%2024-03-31
2Cormorant Asset Management, LP3,250,000$29.4M4.70%2024-03-31
3EVENTIDE ASSET MANAGEMENT, LLC2,346,526$21.2M3.39%2024-03-31
4ADAGE CAPITAL PARTNERS GP, L.L.C.2,331,250$21.1M3.37%2024-03-31
5GMT CAPITAL CORP1,629,364$14.7M2.36%2024-03-31
6SUVRETTA CAPITAL MANAGEMENT, LLC5,073,913$8.9M7.35%2024-09-30
7FRANKLIN RESOURCES INC4,713,014$8.5M6.82%2024-09-30
8Sofinnova Investments, Inc.4,386,177$7.7M6.35%2024-09-30
9Point72 Asset Management, L.P.491,617$4.4M0.71%2024-03-31
10Ally Bridge Group (NY) LLC394,773$3.6M0.57%2024-03-31
11Bleichroeder LP1,872,463$3.3M2.71%2024-09-30
12Ghost Tree Capital, LLC285,000$2.6M0.41%2024-03-31
13Beryl Capital Management LLC4,227,460$2.3M6.12%2024-12-31
14WELLINGTON MANAGEMENT GROUP LLP243,534$2.2M0.35%2024-03-31
15MORGAN STANLEY3,297,307$1.8M4.77%2025-03-31
16JENNISON ASSOCIATES LLC1,469,285$1.7M2.12%2024-06-30
17Walleye Capital LLC185,424$1.7M0.26%2024-03-31
18Propel Bio Management, LLC180,100$1.6M0.26%2024-03-31
19Altium Capital Management LP176,840$1.6M0.25%2024-03-31
20Exome Asset Management LLC163,100$1.5M0.23%2024-03-31
21ODDO BHF ASSET MANAGEMENT SAS2,700,000$1.4M3.91%2024-12-31
22Bain Capital Life Sciences Investors, LLC2,693,380$1.4M3.90%2024-12-31
23abrdn plc2,658,527$1.4M3.85%2024-12-31
24CHARLES SCHWAB INVESTMENT MANAGEMENT INC154,667$1.4M0.22%2024-03-31
25VANGUARD GROUP INC2,578,540$1.4M3.73%2024-12-31
26Simplify Asset Management Inc.150,000$1.4M0.21%2024-03-31
27Bank of New York Mellon Corp140,081$1.3M0.20%2024-03-31
28Woodline Partners LP2,335,681$1.2M3.38%2024-12-31
29Ikarian Capital, LLC706,154$1.2M1.02%2024-09-30
30Lion Point Capital, LP693,778$1.2M1.00%2024-09-30
31LMR Partners LLP120,000$1.1M0.17%2024-03-31
32Nuveen Asset Management, LLC113,476$1.0M0.16%2024-03-31
33Trexquant Investment LP107,533$972.1K0.15%2024-03-31
34BlackRock Inc.789,480$923.7K1.14%2024-06-30
35RENAISSANCE TECHNOLOGIES LLC501,931$883.4K0.72%2024-09-30
36TANG CAPITAL MANAGEMENT LLC1,641,945$878.6K2.37%2024-12-31
37PRUDENTIAL FINANCIAL INC385,000$677.6K0.55%2024-09-30
38Campbell & CO Investment Adviser LLC69,514$628.4K0.10%2024-03-31
39MIZUHO SECURITIES USA LLC2,448$627.2K0.00%2024-09-30
40J. Goldman & Co LP67,500$610.2K0.09%2024-03-31
41BANK OF MONTREAL /CAN/429,600$607.9K0.62%2024-09-30
42SHERBROOKE PARK ADVISERS LLC64,721$585.1K0.09%2024-03-31
43VICTORY CAPITAL MANAGEMENT INC61,220$553.4K0.08%2024-03-31
44ALLIANCEBERNSTEIN L.P.41,300$373.4K0.05%2024-03-31
45JPMORGAN CHASE & CO33,543$364.6K0.04%2024-12-31
46BlackRock, Inc.658,844$352.5K0.95%2024-12-31
47PRELUDE CAPITAL MANAGEMENT, LLC37,600$339.9K0.05%2024-03-31
48BOOTHBAY FUND MANAGEMENT, LLC185,996$327.4K0.26%2024-09-30
49D. E. Shaw & Co., Inc.178,801$314.7K0.25%2024-09-30
50SUPERSTRING CAPITAL MANAGEMENT LP261,861$306.4K0.37%2024-06-30
51MetLife Investment Management, LLC26,356$286.5K0.03%2024-03-31
52CITADEL ADVISORS LLC501,911$268.6K0.72%2024-12-31
53GEODE CAPITAL MANAGEMENT, LLC450,103$241.0K0.65%2024-12-31
54Voya Investment Management LLC20,648$224.4K0.02%2024-12-31
55NEW YORK STATE COMMON RETIREMENT FUND19,500$211.8K0.02%2025-09-30
56DEUTSCHE BANK AG\23,273$210.4K0.03%2025-06-30
57SUSQUEHANNA INTERNATIONAL GROUP, LLP363,800$196.5K0.52%2024-12-31
58Graham Capital Management, L.P.146,215$171.1K0.21%2024-06-30
59Alpine Global Management, LLC134,646$157.5K0.19%2024-06-30
60SCHRODER INVESTMENT MANAGEMENT GROUP290,000$152.6K0.42%2024-12-31
61Squarepoint Ops LLC74,223$130.6K0.10%2024-09-30
62MILLENNIUM MANAGEMENT LLC239,414$128.1K0.34%2024-12-31
63Y-Intercept (Hong Kong) Ltd106,942$125.1K0.15%2024-06-30
64Schonfeld Strategic Advisors LLC67,698$119.1K0.09%2024-09-30
65STATE STREET CORP222,576$119.1K0.32%2024-12-31
66Values First Advisors, Inc.67,004$117.9K0.09%2024-09-30
67XTX Topco Ltd219,819$117.6K0.31%2024-12-31
68Royal Bank of Canada216,000$116.0K0.31%2024-12-31
69UBS Group AG212,053$113.4K0.30%2024-12-31
70Centiva Capital, LP92,933$108.7K0.13%2024-06-30
71DELTEC ASSET MANAGEMENT LLC200,000$107.0K0.28%2024-12-31
72Pensionmark Financial Group, LLC59,320$104.4K0.08%2024-09-30
73HUSSMAN STRATEGIC ADVISORS, INC.84,000$98.3K0.12%2024-06-30
74BRIDGEWAY CAPITAL MANAGEMENT, LLC50,000$88.0K0.07%2024-09-30
75Paloma Partners Management Co62,400$73.0K0.09%2024-06-30
76Legal & General Group Plc5,565$60.5K0.00%2025-03-31
77GRIMES & COMPANY, INC.33,609$59.2K0.04%2024-09-30
78Jump Financial, LLC8,526$58.8K0.01%2024-09-30
79NORTHERN TRUST CORP106,674$57.1K0.15%2024-12-31
80GABELLI & Co INVESTMENT ADVISERS, INC.100,000$53.5K0.14%2024-12-31
81JANE STREET GROUP, LLC30,100$53.0K0.04%2024-09-30
82Jefferies Financial Group Inc.41,686$48.8K0.06%2024-06-30
83Prospera Financial Services Inc41,144$48.1K0.05%2024-06-30
84AQR CAPITAL MANAGEMENT LLC31,279$36.6K0.04%2024-06-30
85TWO SIGMA ADVISERS, LP19,725$34.7K0.02%2024-09-30
86RHUMBLINE ADVISERS28,709$33.6K0.04%2024-06-30
87MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.27,659$32.4K0.04%2024-06-30
88Coppell Advisory Solutions LLC3,092$31.4K0.00%2024-12-31
89Assenagon Asset Management S.A.57,128$30.6K0.08%2024-12-31
90GOLDMAN SACHS GROUP INC52,328$28.0K0.07%2024-12-31
91Verition Fund Management LLC20,522$24.0K0.02%2024-06-30
92WOLVERINE TRADING, LLC12,800$23.6K0.01%2024-09-30
93Atria Investments, Inc13,310$23.4K0.01%2024-09-30
94Ground Swell Capital, LLC19,316$22.6K0.02%2024-06-30
95Harvest Investment Services, LLC41,144$22.0K0.05%2024-12-31
96China Universal Asset Management Co., Ltd.10,594$18.6K0.01%2024-09-30
97Balyasny Asset Management LLC10,006$17.6K0.01%2024-09-30
98Catalyst Funds Management Pty Ltd10,800$12.6K0.01%2024-12-31
99ProShare Advisors LLC10,724$12.5K0.01%2024-06-30
100Tower Research Capital LLC (TRC)23,199$12.4K0.03%2024-12-31
101TWO SIGMA INVESTMENTS, LP22,868$12.2K0.03%2024-12-31
102Point72 Asia (Singapore) Pte. Ltd.20,779$11.1K0.03%2024-12-31
103JACOBS LEVY EQUITY MANAGEMENT, INC20,356$10.9K0.02%2024-12-31
104FMR LLC5,534$9.7K0.00%2024-09-30
105Engineers Gate Manager LP16,023$8.6K0.02%2024-12-31
106Qube Research & Technologies Ltd12,897$6.9K0.01%2024-12-31
107Perfromance Wealth Partners, LLC11,000$5.9K0.01%2024-12-31
108Russell Investments Group, Ltd.2,572$4.5K0.00%2024-09-30
109Mirae Asset Global Investments Co., Ltd.1,992$3.7K0.00%2024-09-30
110GROUP ONE TRADING, L.P.6,310$3.4K0.00%2025-03-31
111ADVISOR GROUP HOLDINGS, INC.6,001$3.2K0.00%2025-06-30
112MACQUARIE GROUP LTD2,749$3.2K0.00%2024-06-30
113State of Wyoming1,688$2.0K0.00%2024-06-30
114FEDERATED HERMES, INC.2,286$1.2K0.00%2024-12-31
115GSA CAPITAL PARTNERS LLP1,837,491$9832.66%2024-12-31
116WELLS FARGO & COMPANY/MN1,800$9630.00%2024-12-31
117PRINCIPAL SECURITIES, INC.457$8040.00%2024-09-30
118BNP PARIBAS ARBITRAGE, SNC1,322$7070.00%2024-12-31
119MACROVIEW INVESTMENT MANAGEMENT LLC351$6180.00%2024-09-30
120BANK OF AMERICA CORP /DE/1,065$5700.00%2024-12-31
1211620 INVESTMENT ADVISORS, INC.1,000$5350.00%2024-12-31
122CITIGROUP INC932$4990.00%2024-12-31
123ACADIAN ASSET MANAGEMENT LLC696,740$3711.00%2024-12-31
124Caption Management, LLC200$2340.00%2024-06-30
125Zurcher Kantonalbank (Zurich Cantonalbank)275$1470.00%2024-12-31
126Farther Finance Advisors, LLC82$1440.00%2024-09-30
127FIFTH THIRD BANCORP115$620.00%2024-12-31
128ALGERT GLOBAL LLC29,370$520.04%2024-09-30
129HARBOR INVESTMENT ADVISORY, LLC37$430.00%2024-06-30
130Virtu Financial LLC66,717$360.09%2024-12-31
131SG Americas Securities, LLC29,178$340.04%2024-06-30
132SBI Securities Co., Ltd.50$270.00%2024-12-31
133PRICE T ROWE ASSOCIATES INC /MD/44,200$240.06%2024-12-31
134HRT FINANCIAL LP30,943$160.04%2024-12-31
135Point72 (DIFC) Ltd21$110.00%2024-12-31
136COMMONWEALTH EQUITY SERVICES, LLC12,518$70.01%2024-12-31
137SIMPLEX TRADING, LLC9,526$50.01%2024-12-31
138CWM, LLC5$00.00%2024-06-30
139Daiwa Securities Group Inc.202$00.00%2024-09-30
140CONCOURSE FINANCIAL GROUP SECURITIES, INC.0$00.00%2024-12-31
141BARCLAYS PLC54$00.00%2024-12-31