Marinus PharmaceuticalsMRNS
13F holders, Q4 2024 (December 31)53holders −22
8new positions
31sold out
2famous investors
$0.54avg. 13F price*
At the end of Q4 2024, 53 institutions reported holding Marinus Pharmaceuticals Inc. (MRNS) in their 13F filings, down 22 from Q3 2024. 8 opened new positions and 31 sold out. The largest holders were Beryl Capital Management LLC ($2.3M), Morgan Stanley ($1.8M) and Oddo BHF Asset Management Sas ($1.4M). 2 famous investors held it, including Ken Griffin (0.0% of Citadel Advisors's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Marinus Pharmaceuticals Inc.
- CUSIP
- 56854Q200
- Latest filing quarter
- Q4 2024
History
Number of 13F holders
Total Exit/New Position Q3 2024 → Q4 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 8 | $3.9M |
| Exits | 31 | $34.6M |
All 13F filers, Q3 2024 → Q4 2024: 13,726,854 shares bought and 25,541,202 shares sold, net −11,814,348 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 53 holders
| Beryl Capital Management LLC | 0.51% | New | 4,227,460 | $2.3M |
| Morgan Stanley | 0.00% | Add +1898.7% | 3,299,229 | $1.8M |
| Oddo BHF Asset Management Sas | 0.07% | New | 2,700,000 | $1.4M |
| Bain Capital Life Sciences Investors, LLC | 0.17% | No change | 2,693,380 | $1.4M |
| Aberdeen Group plc | 0.00% | No change | 2,658,527 | $1.4M |
| Vanguard Group Inc. | 0.00% | Reduce -7.4% | 2,596,768 | $1.4M |
| Woodline Partners LP | 0.01% | Add +84.8% | 2,335,681 | $1.2M |
| Gsa Capital Partners LLP | 0.07% | Add +80.7% | 1,837,491 | $983K |
| Tang Capital Management LLC | 0.06% | Reduce -65.1% | 1,641,945 | $879K |
| BlackRock, Inc. | 0.00% | Reduce -52.5% | 883,675 | $473K |
| Acadian Asset Management LLC | 0.00% | Reduce -23.5% | 696,740 | $371K |
| Geode Capital Management, LLC | 0.00% | Reduce -6.9% | 529,053 | $283K |
| Citadel Advisors | 0.00% | Add +108.8% | 501,911 | $269K |
| JPMorgan Chase & Co. | 0.00% | Add +266.1% | 487,584 | $261K |
| Schroder Investment Management Group | 0.00% | No change | 290,000 | $153K |
| UBS Group AG | 0.00% | Add +11367.9% | 258,944 | $139K |
| Royal Bank of Canada | 0.00% | Add +303.4% | 249,138 | $134K |
| Millennium Management | 0.00% | Reduce -50.4% | 239,414 | $128K |
| State Street Corp. | 0.00% | Add +7.8% | 222,576 | $119K |
| XTX Topco Ltd | 0.01% | Add +1564.7% | 219,819 | $118K |
| Deltec Asset Management LLC | 0.02% | New | 200,000 | $107K |
| Northern Trust Corp. | 0.00% | Reduce -3.9% | 113,280 | $61K |
| Susquehanna International Group, LLP | 0.00% | Add +36.5% | 100,853 | $54K |
| GABELLI & Co INVESTMENT ADVISERS, INC. | 0.01% | New | 100,000 | $54K |
| Virtu Financial LLC | 0.00% | New | 66,717 | $36K |
| Coppell Advisory Solutions LLC | 0.00% | No change | 3,092 | $31K |
| Assenagon Asset Management S.A. | 0.00% | Reduce -87.1% | 57,128 | $31K |
| Goldman Sachs Group Inc. | 0.00% | Add +30.6% | 52,328 | $28K |
| T. Rowe Price Associates Inc. | 0.00% | No change | 44,200 | $24K |
| Harvest Investment Services, LLC | 0.01% | New | 41,144 | $22K |
| HRT Financial LP | 0.00% | New | 30,943 | $16K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +68.5% | 23,199 | $12K |
| Two Sigma Investments, LP | 0.00% | Reduce -52.0% | 22,868 | $12K |
| Point72 Asia (Singapore) Pte. Ltd. | 0.00% | Add +7.8% | 20,779 | $11K |
| Jacobs Levy Equity Management, Inc. | 0.00% | Reduce -95.1% | 20,356 | $11K |
| Engineers Gate Manager LP | 0.00% | Reduce -45.6% | 16,023 | $9K |
| Commonwealth Equity Services, LLC | 0.00% | Reduce -0.8% | 12,518 | $7K |
| Qube Research & Technologies Ltd | 0.00% | Reduce -61.7% | 12,897 | $7K |
| Performance Wealth Partners, LLC | 0.00% | No change | 11,000 | $6K |
| Simplex Trading, LLC | 0.00% | Reduce -82.2% | 9,526 | $5K |
| Group One Trading LLC | 0.00% | Reduce -46.0% | 6,310 | $3K |
| Osaic Holdings, Inc. | 0.00% | Reduce -45.5% | 6,001 | $3K |
| Federated Hermes, Inc. | 0.00% | Reduce -38.9% | 2,286 | $1K |
| Wells Fargo & Company | 0.00% | No change | 1,800 | $963 |
| Bank of America Corp. | 0.00% | Reduce -99.4% | 1,653 | $885 |
| BNP Paribas Financial Markets | 0.00% | New | 1,322 | $707 |
| 1620 Investment Advisors, Inc. | 0.00% | No change | 1,000 | $535 |
| Citigroup Inc. | 0.00% | Reduce -28.6% | 932 | $499 |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0.00% | Reduce -83.4% | 275 | $147 |
| Fifth Third Bancorp | 0.00% | No change | 115 | $62 |
| Barclays PLC | 0.00% | Reduce -82.1% | 54 | $29 |
| SBI Securities Co., Ltd. | 0.00% | — | 50 | $27 |
| Point72 (DIFC) Ltd | 0.00% | Reduce -25.0% | 21 | $11 |
"% of holder's portfolio" is MRNS's weight in each manager's 13F, not the share of Marinus Pharmaceuticals Inc. the manager owns.