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, Q3 2023

Institutional positions in Marinus Pharmaceuticals, Inc. as of Sep 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
104
−1 vs. Q2 2023
Shares held
51.1M
+6.82M (+15.4%) vs. Q2 2023
Total value
$411.1M
−$69.4M (−14.4%) vs. Q2 2023
New holders
18
41 more added
Sold out
19
30 more reduced

1 institution that held it in Q2 2023 haven't filed for Q3 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 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 holdersQ3 2023: 104 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 heldQ3 2023: $411.1M
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, Q3 2023

Shares, value and share of portfolio for each institution holding Marinus Pharmaceuticals, Inc.; share changes are against Q2 2023.

Institutions holding MRNS in Q3 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Franklin Resources Inc3,784,366$30.5M0.02%+2,467,498+187.4%Added
BlackRock Inc.4,145,643$33.4M0.00%+247,873+6.4%Added
Eventide Asset Management, LLC4,529,997$36.5M0.66%+1,356,800+42.8%Added
Suvretta Capital Management, LLC5,204,942$41.9M2.26%+1,147,331+28.3%Added
Logos Global Management LP0$00.00%−525,000−100.0%Sold out
Ally Bridge Group (NY) LLC0$00.00%−390,418−100.0%Sold out
Bank of Montreal0$00.00%−188,722−100.0%Sold out
Parkman Healthcare Partners LLC0$00.00%−171,075−100.0%Sold out
EAM Investors, LLC0$00.00%−170,901−100.0%Sold out
Cubist Systematic Strategies, LLC0$00.00%−122,260−100.0%Sold out
Renaissance Technologies LLC0$00.00%−62,600−100.0%Sold out
Cantor Fitzgerald, L. P.0$00.00%−62,520−100.0%Sold out
Occudo Quantitative Strategies LP0$00.00%−51,718−100.0%Sold out
Harvest Investment Services, LLC0$00.00%−44,572−100.0%Sold out
Graham Capital Management, L.P.0$00.00%−31,162−100.0%Sold out
Maven Securities LTD0$00.00%−25,000−100.0%Sold out
Connor, Clark & Lunn Investment Management Ltd.0$00.00%−23,335−100.0%Sold out
Engineers Gate Manager LP0$00.00%−19,874−100.0%Sold out
Man Group plc0$00.00%−13,947−100.0%Sold out
Millennium Management LLC0$00.00%−13,240−100.0%Sold out
Campbell & CO Investment Adviser LLC0$00.00%−11,856−100.0%Sold out
Dorsey Wright & Associates0$00.00%−2,446−100.0%Sold out
Nisa Investment Advisors, LLC0$00.00%−32−100.0%Sold out
Tekla Capital Management LLC––––Not filed