Skip to main content

Marinus Pharmaceuticals, Inc.

MRNSDelisted Feb 11, 2025
Industry
Pharmaceutical Preparations
SEC CIK
0001267813

Marinus Pharmaceuticals, Inc. was delisted on Feb 11, 2025; its insiders filed their last Form 4 on Feb 11, 2025; 53 institutions reported holding it in 13F filings for Q4 2024, worth $15.8M in total; no superinvestor held it.

13F holders, Q2 2023

Institutional positions in Marinus Pharmaceuticals, Inc. as of Jun 30, 2023. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
106
+20 vs. Q1 2023
Shares held
44.7M
+3.53M (+8.6%) vs. Q1 2023
Total value
$485.0M
+$201.1M (+70.8%) vs. Q1 2023
New holders
42
23 more added
Sold out
22
28 more reduced

Compare with Q1 2023: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting MRNS on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ2 2023: 106 institutions
Q1 2021: 87 institutionsQ2 2021: 80 institutionsQ3 2021: 82 institutionsQ4 2021: 75 institutionsQ1 2022: 83 institutionsQ2 2022: 73 institutionsQ3 2022: 69 institutionsQ4 2022: 74 institutionsQ1 2023: 86 institutionsQ2 2023: 106 institutionsQ3 2023: 104 institutionsQ4 2023: 105 institutionsQ1 2024: 112 institutionsQ2 2024: 90 institutionsQ3 2024: 75 institutionsQ4 2024: 53 institutionsQ1 2025: 0 institutionsQ2 2025: 0 institutionsQ3 2025: 0 institutionsQ4 2025: 0 institutionsQ1 2026: 0 institutionsQ2 2026: 0 institutions
Value heldQ2 2023: $485.0M
Q1 2021: $480.3MQ2 2021: $563.3MQ3 2021: $362.0MQ4 2021: $355.7MQ1 2022: $280.4MQ2 2022: $140.6MQ3 2022: $186.9MQ4 2022: $165.6MQ1 2023: $283.9MQ2 2023: $485.0MQ3 2023: $411.1MQ4 2023: $585.2MQ1 2024: $486.5MQ2 2024: $50.6MQ3 2024: $72.9MQ4 2024: $15.8MQ1 2025: $0Q2 2025: $0Q3 2025: $0Q4 2025: $0Q1 2026: $0Q2 2026: $0
Institutions holding MRNS and their total value by quarter
QuarterHoldersValue
Q2 20260$0
Q1 20260$0
Q4 20250$0
Q3 20250$0
Q2 20250$0
Q1 20250$0
Q4 202453$15.8M
Q3 202475$72.9M
Q2 202490$50.6M
Q1 2024112$486.5M
Q4 2023105$585.2M
Q3 2023104$411.1M
Q2 2023106$485.0M
Q1 202386$283.9M
Q4 202274$165.6M
Q3 202269$186.9M
Q2 202273$140.6M
Q1 202283$280.4M
Q4 202175$355.7M
Q3 202182$362.0M
Q2 202180$563.3M
Q1 202187$480.3M

Institutions, Q2 2023

Shares, value and share of portfolio for each institution holding Marinus Pharmaceuticals, Inc.; share changes are against Q1 2023.

Institutions holding MRNS in Q2 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Suvretta Capital Management, LLC4,057,611$44.1M2.36%−773,650−16.0%Reduced
BlackRock Inc.3,897,770$42.3M0.00%+2,769,357+245.4%Added
Eventide Asset Management, LLC3,173,197$34.5M0.58%00.0%Unchanged
Avoro Capital Advisors LLC3,150,000$34.2M0.46%00.0%Unchanged
Adage Capital Partners GP, L.L.C.2,731,250$29.7M0.06%+696,750+34.2%Added
Vanguard Group Inc2,546,242$27.7M0.00%+361,498+16.5%Added
Lion Point Capital, LP2,257,521$24.5M18.20%−362,575−13.8%Reduced
Bleichroeder LP1,872,463$20.3M4.13%00.0%Unchanged
Jennison Associates LLC1,865,430$20.3M0.02%+1,865,430New
GMT Capital Corp1,554,995$16.9M0.64%+373,425+31.6%Added
Bain Capital Life Sciences Investors, LLC1,431,058$15.5M1.60%00.0%Unchanged
Point72 Asset Management, L.P.1,325,181$14.4M0.05%−1,827,819−58.0%Reduced
Franklin Resources Inc1,316,868$14.3M0.01%+291,033+28.4%Added
Sofinnova Investments, Inc.962,619$10.5M0.69%−237,770−19.8%Reduced
Geode Capital Management, LLC947,062$10.3M0.00%+499,839+111.8%Added
State Street Corp899,278$9.77M0.00%+747,302+491.7%Added
Woodline Partners LP800,000$8.69M0.10%−797,411−49.9%Reduced
Assenagon Asset Management S.A.682,491$7.41M0.03%00.0%Unchanged
Opaleye Management Inc.625,000$6.79M1.62%−140,000−18.3%Reduced
Ikarian Capital, LLC611,932$6.65M2.34%+611,932New
Logos Global Management LP525,000$5.70M0.79%+525,000New
Invesco Ltd.429,005$4.66M0.00%+429,005New
Northern Trust Corp421,844$4.58M0.00%+344,501+445.4%Added
Boothbay Fund Management, LLC413,211$4.49M0.15%+392,297+1,875.8%Added
Tekla Capital Management LLC411,101$4.46M0.17%−45,679−10.0%Reduced
Ally Bridge Group (NY) LLC390,418$4.24M5.14%+390,418New
Walleye Capital LLC360,245$3.91M0.07%+329,362+1,066.5%Added
D. E. Shaw & Co., Inc.354,748$3.85M0.01%+266,521+302.1%Added
Citadel Advisors LLC302,312$3.28M0.00%+118,904+64.8%Added
Prudential Financial Inc271,280$2.95M0.00%+271,280New
Jefferies Financial Group Inc.254,021$2.76M0.06%−249,772−49.6%Reduced
Two Sigma Investments, LP222,484$2.42M0.01%+222,484New
Bank of Montreal188,722$2.06M0.00%−163,106−46.4%Reduced
Parkman Healthcare Partners LLC171,075$1.86M0.32%−78,925−31.6%Reduced
EAM Investors, LLC170,901$1.86M0.34%00.0%Unchanged
Bank of New York Mellon Corp163,770$1.78M0.00%+111,757+214.9%Added
Jane Street Group, LLC158,338$1.72M0.00%−145,400−47.9%Reduced
Wellington Management Group LLP156,978$1.70M0.00%+156,978New
Simplify Asset Management Inc.150,000$1.63M0.30%00.0%Unchanged
Schonfeld Strategic Advisors LLC149,477$1.62M0.01%+101,227+209.8%Added
Nuveen Asset Management, LLC139,477$1.51M0.00%+139,477New
Charles Schwab Investment Management Inc135,065$1.47M0.00%+115,496+590.2%Added
Cubist Systematic Strategies, LLC122,260$1.33M0.01%+122,190+174,557.1%Added
Morgan Stanley98,771$1.07M0.00%−23,146−19.0%Reduced
Simplex Trading, LLC91,735$996.0K0.04%−19,182−17.3%Reduced
International Biotechnology Trust PLC90,000$977.4K0.30%+90,000New
Federated Hermes, Inc.81,964$890.1K0.00%+81,964New
Moore Capital Management, LP75,000$814.5K0.02%+75,000New
Two Sigma Advisers, LP74,025$803.9K0.00%+74,025New
Rhumbline Advisers66,902$726.6K0.00%+66,902New
Goldman Sachs Group Inc65,523$711.6K0.00%−88,636−57.5%Reduced
Susquehanna International Group, LLP65,517$711.5K0.00%−287,688−81.5%Reduced
Renaissance Technologies LLC62,600$680.0K0.00%−68,700−52.3%Reduced
Cantor Fitzgerald, L. P.62,520$679.0K0.02%+62,520New
Victory Capital Management Inc58,660$637.0K0.00%+58,660New
Barclays PLC57,884$628.6K0.00%−585,131−91.0%Reduced
Denali Advisors LLC52,600$571.2K0.20%+43,000+447.9%Added
Occudo Quantitative Strategies LP51,718$561.7K0.06%+51,718New
Walleye Trading LLC45,226$491.2K0.03%+30,083+198.7%Added
Harvest Investment Services, LLC44,572$484.1K0.28%+44,572New
JPMorgan Chase & Co40,284$437.5K0.00%+39,536+5,285.6%Added
Belvedere Trading LLC37,783$410.3K0.13%+37,783New
Bank of America Corp37,308$405.2K0.00%−112,009−75.0%Reduced
UBS Group AG35,973$390.7K0.00%−48,779−57.6%Reduced
Grimes & Company, Inc.34,751$377.4K0.01%00.0%Unchanged
Dimensional Fund Advisors LP32,089$348.5K0.00%00.0%Unchanged
Graham Capital Management, L.P.31,162$338.4K0.01%−46,901−60.1%Reduced
Worth Venture Partners, LLC26,800$291.0K0.16%−301,935−91.8%Reduced
MetLife Investment Management26,356$286.2K0.00%+26,356New
Alliancebernstein L.P.25,990$282.3K0.00%+25,990New
Price T Rowe Associates Inc25,798$281.0K0.00%+6,098+31.0%Added
Mirae Asset Global Investments Co., Ltd.25,224$273.9K0.00%+25,224New
Maven Securities LTD25,000$271.5K0.04%−10,000−28.6%Reduced
American International Group, Inc.23,982$260.4K0.00%+23,982New
Connor, Clark & Lunn Investment Management Ltd.23,335$253.4K0.00%+23,335New
Group One Trading, L.P.23,009$249.9K0.01%−29,084−55.8%Reduced
Deutsche Bank AG22,640$245.9K0.00%+22,640New
Wells Fargo & Company20,767$225.5K0.00%+20,455+6,556.1%Added
Voya Investment Management LLC20,063$217.9K0.00%+20,063New
Manufacturers Life Insurance Company, The19,994$217.1K0.00%+19,994New
Engineers Gate Manager LP19,874$215.8K0.01%+19,874New
New York State Common Retirement Fund19,500$211.8K0.00%+19,500New
California State Teachers Retirement System16,574$180.0K0.00%+16,574New
Values First Advisors, Inc.16,245$176.4K0.11%−2,027−11.1%Reduced
Citigroup Inc15,696$170.5K0.00%−89,590−85.1%Reduced
State Board of Administration of Florida Retirement System14,150$153.7K0.00%+14,150New
Man Group plc13,947$151.5K0.00%+13,947New
Millennium Management LLC13,240$143.8K0.00%−917,526−98.6%Reduced
Campbell & CO Investment Adviser LLC11,856$128.8K0.02%+11,856New
Amalgamated Bank7,554$82.0K0.00%+7,554New
Royal Bank of Canada7,439$81.0K0.00%+6,983+1,531.4%Added
Legal & General Group Plc6,036$65.6K0.00%+6,036New
FMR LLC4,419$48.0K0.00%−14−0.3%Reduced
Ameritas Investment Partners, Inc.4,114$44.7K0.00%+4,114New
Tower Research Capital LLC (TRC)3,880$42.1K0.00%+1,375+54.9%Added
Zurcher Kantonalbank (Zurich Cantonalbank)3,860$41.9K0.00%+3,860New
Metropolitan Life Insurance Co2,731$29.7K0.00%+2,731New
Dorsey Wright & Associates2,446$26.6K0.01%+2,446New
China Universal Asset Management Co., Ltd.662$7.19K0.00%−10−1.5%Reduced
Advisor Group Holdings, Inc.524$5.69K0.00%00.0%Unchanged