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MRNS Insider Trading

Insider Ownership Percentage: 5.46%
Insider Buying (Last 12 Months): $6,526.30
Insider Selling (Last 12 Months): $28,296.79

Marinus Pharmaceuticals Insider Trading History Chart

This chart shows the insider buying and selling history at Marinus Pharmaceuticals by year and by quarter.

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Marinus Pharmaceuticals Share Price & Price History

Current Price: $0.55
Price Change: ▼ Price Decrease of -0.0009 (-0.16%)
As of 02/11/2025 09:13 AM ET

This chart shows the closing price history over time for MRNS up to the past year.

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Days: 30 | 90 | 365

Marinus Pharmaceuticals Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
1/21/2025Elan EzicksonDirectorSell1,600$0.54$864.0010,900View SEC Filing Icon  
8/14/2024Scott BraunsteinCEOBuy5,933$1.10$6,526.30304,600View SEC Filing Icon  
8/5/2024Christina ShaferInsiderSell3,820$1.14$4,354.8067,406View SEC Filing Icon  
8/5/2024Martha E ManningSVPSell3,621$1.13$4,091.7360,263View SEC Filing Icon  
8/5/2024Scott BraunsteinCEOSell12,145$1.13$13,723.85298,667View SEC Filing Icon  
8/5/2024Steven PfanstielCFOSell4,657$1.13$5,262.4179,773View SEC Filing Icon  
8/7/2023Christina ShaferInsiderSell2,385$9.52$22,705.2040,637View SEC Filing Icon  
8/7/2023Martha E ManningSVPSell2,169$9.54$20,692.2633,036View SEC Filing Icon  
8/7/2023Scott BraunsteinCEOSell6,413$9.55$61,244.15160,792View SEC Filing Icon  
8/7/2023Steven PfanstielCFOSell2,790$9.54$26,616.6049,338View SEC Filing Icon  
2/6/2023Seth H Z FischerDirectorSell1,018$6.54$6,657.726,026View SEC Filing Icon  
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SEC Filings (Institutional Ownership Changes) for Marinus Pharmaceuticals (NASDAQ:MRNS)

98.80% of Marinus Pharmaceuticals stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

This chart shows the instiutional buying and selling at MRNS by year and by quarter.

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Marinus Pharmaceuticals Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
2/17/2025Woodline Partners LP2,335,681$1.25M0.0%+84.7%4.230%Search for SEC Filing on Google Icon
2/17/2025Tang Capital Management LLC1,641,945$0.88M0.1%-65.1%2.973%Search for SEC Filing on Google Icon
2/17/2025Millennium Management LLC239,414$0.13M0.0%-50.4%0.434%Search for SEC Filing on Google Icon
2/17/2025Beryl Capital Management LLC4,227,460$2.26M0.5%N/A7.656%Search for SEC Filing on Google Icon
2/13/2025GABELLI & Co INVESTMENT ADVISERS INC.100,000$54K0.0%N/A0.181%Search for SEC Filing on Google Icon
2/13/2025XTX Topco Ltd219,819$0.12M0.0%+1,564.7%0.398%Search for SEC Filing on Google Icon
2/12/2025Geode Capital Management LLC529,053$0.28M0.0%-6.9%0.958%Search for SEC Filing on Google Icon
2/12/2025JPMorgan Chase & Co.487,584$0.26M0.0%+266.1%0.883%Search for SEC Filing on Google Icon
2/11/2025Virtu Financial LLC66,717$36K0.0%N/A0.121%Search for SEC Filing on Google Icon
1/27/2025Deltec Asset Management LLC200,000$0.11M0.0%N/A0.362%Search for SEC Filing on Google Icon
1/14/2025Assenagon Asset Management S.A.57,128$31K0.0%-87.1%0.103%Search for SEC Filing on Google Icon
12/26/2024JPMorgan Chase & Co.133,191$0.23M0.0%+1,968.5%0.241%Search for SEC Filing on Google Icon
11/27/2024Franklin Resources Inc.4,713,014$8.48M0.0%+34.9%8.540%Search for SEC Filing on Google Icon
11/25/2024World Investment Advisors LLC59,320$0.10M0.0%N/A0.107%Search for SEC Filing on Google Icon
11/16/2024Geode Capital Management LLC568,517$1M0.0%-7.9%1.030%Search for SEC Filing on Google Icon
11/15/2024Jacobs Levy Equity Management Inc.414,269$0.73M0.0%+39.5%0.751%Search for SEC Filing on Google Icon
11/15/2024Point72 Asia Singapore Pte. Ltd.19,278$34K0.0%-64.9%0.035%Search for SEC Filing on Google Icon
11/14/2024Suvretta Capital Management LLC5,073,913$8.93M0.3%+32.8%9.212%Search for SEC Filing on Google Icon
11/5/2024GSA Capital Partners LLP1,016,634$1.79M0.1%+409.4%1.846%Search for SEC Filing on Google Icon
10/25/2024abrdn plc2,658,527$4.68M0.0%+146.1%4.827%Search for SEC Filing on Google Icon
10/23/2024Assenagon Asset Management S.A.444,185$0.78M0.0%+70.3%0.809%Search for SEC Filing on Google Icon
9/16/2024Point72 DIFC Ltd23,698$28K0.0%N/A0.043%Search for SEC Filing on Google Icon
9/16/2024Point72 Asia Singapore Pte. Ltd.54,878$64K0.0%N/A0.100%Search for SEC Filing on Google Icon
8/15/2024AQR Capital Management LLC31,333$37K0.0%+70.3%0.057%Search for SEC Filing on Google Icon
8/15/2024Point72 Asia Singapore Pte. Ltd.54,878$64K0.0%N/A0.100%Search for SEC Filing on Google Icon
8/14/2024Squarepoint Ops LLC175,735$0.21M0.0%N/A0.320%Search for SEC Filing on Google Icon
8/14/2024Point72 DIFC Ltd23,698$28K0.0%N/A0.043%Search for SEC Filing on Google Icon
8/12/2024XTX Topco Ltd197,940$0.23M0.0%N/A0.360%Search for SEC Filing on Google Icon
8/9/2024Renaissance Technologies LLC621,625$0.73M0.0%N/A1.132%Search for SEC Filing on Google Icon
8/6/2024Acadian Asset Management LLC695,972$0.81M0.0%N/A1.267%Search for SEC Filing on Google Icon
8/1/2024Rhumbline Advisers28,709$34K0.0%-62.8%0.052%Search for SEC Filing on Google Icon
8/1/2024Hussman Strategic Advisors Inc.84,000$98K0.0%+14.3%0.153%Search for SEC Filing on Google Icon
7/19/2024Values First Advisors Inc.62,671$73K0.0%+501.8%0.114%Search for SEC Filing on Google Icon
7/18/2024Assenagon Asset Management S.A.260,789$0.31M0.0%-3.8%0.475%Search for SEC Filing on Google Icon
7/12/2024SG Americas Securities LLC29,178$34K0.0%N/A0.053%Search for SEC Filing on Google Icon
5/16/2024Jacobs Levy Equity Management Inc.42,449$0.38M0.0%N/A0.077%Search for SEC Filing on Google Icon
5/16/2024Bain Capital Life Sciences Investors LLC1,393,380$12.60M1.0%-2.6%2.537%Search for SEC Filing on Google Icon
5/15/2024Avoro Capital Advisors LLC4,140,607$37.43M0.4%+31.4%7.538%Search for SEC Filing on Google Icon
5/10/2024Vanguard Group Inc.2,805,920$25.37M0.0%+5.0%5.108%Search for SEC Filing on Google Icon
5/2/2024Hussman Strategic Advisors Inc.73,500$0.66M0.2%N/A0.134%Search for SEC Filing on Google Icon
3/5/2024Wellington Management Group LLP241,299$2.62M0.0%+54.8%0.442%Search for SEC Filing on Google Icon
2/15/2024Opaleye Management Inc.563,500$6.13M1.6%-3.5%1.033%Search for SEC Filing on Google Icon
2/14/2024Superstring Capital Management LP462,444$5.03M3.6%N/A0.847%Search for SEC Filing on Google Icon
2/13/2024Campbell & CO Investment Adviser LLC105,383$1.15M0.1%N/A0.193%Search for SEC Filing on Google Icon
2/12/2024Alpha DNA Investment Management LLC49,664$0.54M0.2%-35.6%0.091%Search for SEC Filing on Google Icon
2/9/2024Franklin Resources Inc.3,833,955$41.68M0.0%+1.3%7.026%Search for SEC Filing on Google Icon
2/9/2024Trexquant Investment LP50,851$0.55M0.0%N/A0.093%Search for SEC Filing on Google Icon
2/5/2024Victory Capital Management Inc.83,270$0.91M0.0%-11.9%0.153%Search for SEC Filing on Google Icon
2/5/2024Mach 1 Financial Group LLC43,828$0.48M0.2%-35.7%0.080%Search for SEC Filing on Google Icon
2/1/2024New York State Common Retirement Fund17,120$0.19M0.0%-14.6%0.031%Search for SEC Filing on Google Icon
2/1/2024Jennison Associates LLC2,959,161$32.17M0.0%+0.1%5.423%Search for SEC Filing on Google Icon
1/31/2024abrdn plc552,572$6.01M0.0%N/A1.013%Search for SEC Filing on Google Icon
1/24/2024China Universal Asset Management Co. Ltd.6,307$69K0.0%+383.7%0.012%Search for SEC Filing on Google Icon
1/19/2024Denali Advisors LLC13,600$0.15M0.0%-48.9%0.025%Search for SEC Filing on Google Icon
1/17/2024Assenagon Asset Management S.A.271,157$2.95M0.0%-47.0%0.497%Search for SEC Filing on Google Icon
1/12/2024SG Americas Securities LLC12,289$0.13M0.0%N/A0.023%Search for SEC Filing on Google Icon
1/1/2024Wellington Management Group LLP155,844$1.26M0.0%-0.7%0.286%Search for SEC Filing on Google Icon
12/18/2023Vanguard Group Inc.2,577,475$20.75M0.0%+1.2%4.723%Search for SEC Filing on Google Icon
11/15/2023Acuta Capital Partners LLC19,500$0.16M0.1%N/A0.036%Search for SEC Filing on Google Icon
11/15/2023Adage Capital Partners GP L.L.C.2,904,476$23.38M0.1%+6.3%5.322%Search for SEC Filing on Google Icon
11/14/2023Eventide Asset Management LLC4,529,997$36.47M0.7%+42.8%8.301%Search for SEC Filing on Google Icon
11/14/2023Schonfeld Strategic Advisors LLC253,412$2.04M0.0%+69.5%0.464%Search for SEC Filing on Google Icon
11/14/2023Sherbrooke Park Advisers LLC17,539$0.14M0.0%N/A0.032%Search for SEC Filing on Google Icon
11/8/2023Values First Advisors Inc.13,461$0.11M0.1%-17.1%0.027%Search for SEC Filing on Google Icon
11/7/2023Alpha DNA Investment Management LLC77,083$0.62M0.3%N/A0.152%Search for SEC Filing on Google Icon
11/7/2023Barclays PLC9,012$73K0.0%-84.4%0.018%Search for SEC Filing on Google Icon
11/6/2023Assenagon Asset Management S.A.511,193$4.12M0.0%-25.1%1.010%Search for SEC Filing on Google Icon
11/6/2023Victory Capital Management Inc.94,550$0.76M0.0%+61.2%0.187%Search for SEC Filing on Google Icon
10/31/2023Jennison Associates LLC2,955,343$23.79M0.0%+58.4%5.839%Search for SEC Filing on Google Icon
10/25/2023BluePath Capital Management LLC4,730$38K0.0%N/A0.009%Search for SEC Filing on Google Icon
10/20/2023Denali Advisors LLC26,600$0.21M0.1%-49.4%0.053%Search for SEC Filing on Google Icon
10/17/2023Mach 1 Financial Group LLC68,203$0.55M0.2%N/A0.135%Search for SEC Filing on Google Icon
10/11/2023AE Wealth Management LLC69,230$0.56M0.0%N/A0.137%Search for SEC Filing on Google Icon
8/15/2023Suvretta Capital Management LLC4,057,611$44.07M2.4%-16.0%8.017%Search for SEC Filing on Google Icon
8/14/2023Jefferies Financial Group Inc.254,021$2.76M0.0%-49.6%0.502%Search for SEC Filing on Google Icon
8/14/2023Graham Capital Management L.P.31,162$0.34M0.0%-60.1%0.062%Search for SEC Filing on Google Icon
8/11/2023Harvest Investment Services LLC44,572$0.48M0.3%N/A0.088%Search for SEC Filing on Google Icon
8/11/2023Campbell & CO Investment Adviser LLC11,856$0.13M0.0%N/A0.023%Search for SEC Filing on Google Icon
8/11/2023Franklin Resources Inc.1,316,868$14.30M0.0%+28.4%2.605%Search for SEC Filing on Google Icon
8/10/2023Metropolitan Life Insurance Co NY2,731$30K0.0%N/A0.005%Search for SEC Filing on Google Icon
8/10/2023Tekla Capital Management LLC411,101$4.47M0.2%-10.0%0.813%Search for SEC Filing on Google Icon
8/8/2023International Biotechnology Trust PLC90,000$0.98M0.3%N/A0.178%Search for SEC Filing on Google Icon
8/4/2023American International Group Inc.23,982$0.26M0.0%N/A0.047%Search for SEC Filing on Google Icon
8/4/2023Maven Securities LTD25,000$0.27M0.0%-28.6%0.049%Search for SEC Filing on Google Icon
8/3/2023Jennison Associates LLC1,865,430$20.26M0.0%N/A3.690%Search for SEC Filing on Google Icon
8/3/2023Bank of New York Mellon Corp163,770$1.78M0.0%+214.9%0.324%Search for SEC Filing on Google Icon
8/2/2023Values First Advisors Inc.16,245$0.18M0.1%-11.1%0.032%Search for SEC Filing on Google Icon
8/2/2023Bank of Montreal Can188,722$2.06M0.0%N/A0.373%Search for SEC Filing on Google Icon
7/27/2023Victory Capital Management Inc.58,660$0.64M0.0%N/A0.116%Search for SEC Filing on Google Icon
7/18/2023Denali Advisors LLC52,600$0.57M0.2%+447.9%0.104%Search for SEC Filing on Google Icon
5/16/2023Altium Capital Management LP228,714$1.58M0.9%N/A0.452%Search for SEC Filing on Google Icon
5/15/2023Suvretta Capital Management LLC4,831,261$33.34M1.4%+0.2%9.558%Search for SEC Filing on Google Icon
5/15/2023AIGH Capital Management LLC1,336,150$9.22M3.4%N/A2.643%Search for SEC Filing on Google Icon
5/12/2023Mirabella Financial Services LLP57,388$0.40M0.1%+425.5%0.116%Search for SEC Filing on Google Icon
5/12/2023Tejara Capital Ltd38,649$0.27M0.1%-59.7%0.078%Search for SEC Filing on Google Icon
5/10/2023Simplify Asset Management Inc.150,000$1.04M0.1%N/A0.302%Search for SEC Filing on Google Icon
5/10/2023Tekla Capital Management LLC456,780$3.15M0.1%N/A0.920%Search for SEC Filing on Google Icon
5/9/2023GMT Capital Corp1,181,570$8.15M0.3%N/A2.379%Search for SEC Filing on Google Icon
5/9/2023Y Intercept Hong Kong Ltd14,479$100K0.0%N/A0.029%Search for SEC Filing on Google Icon
5/4/2023Barclays PLC643,015$4.44M0.0%+3,441.8%1.295%Search for SEC Filing on Google Icon
Data available starting January 2016

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Marinus Pharmaceuticals logo
Marinus Pharmaceuticals, Inc., a pharmaceutical company, focuses on development and commercialization of therapeutic products for patients suffering from rare genetic epilepsies and other seizure disorders. It offers ZTALMY (ganaxolone), an oral suspension for the treatment of seizures associated with cyclin-dependent kinase-like 5 deficiency disorder for adult and pediatric patient populations in acute and chronic care, and in-patient and self-administered settings. The company's ZTALMY product candidate acts at synaptic and extrasynaptic GABAA receptors, a target for its anti-seizure, antidepressant, and anxiolytic potential. It is developing ganaxolone for treating genetic epilepsy disorders, such as PCDH19-related epilepsy, and tuberous sclerosis complex. Marinus Pharmaceuticals, Inc. has license agreement with Purdue Neuroscience Company and CyDex Pharmaceuticals, Inc.; and collaboration agreement with Orion Corporation and Tenacia Biotechnology (Shanghai) Co., Ltd. Marinus Pharmaceuticals, Inc. was incorporated in 2003 and is headquartered in Radnor, Pennsylvania.
Read More on Marinus Pharmaceuticals

Today's Range

Now: $0.55
Low: $0.55
High: $0.55

50 Day Range

MA: $0.55
Low: $0.55
High: $0.55

52 Week Range

Now: $0.55
Low: $0.22
High: $1.97

Volume

260 shs

Average Volume

1,819,137 shs

Market Capitalization

$30.32 million

P/E Ratio

N/A

Dividend Yield

N/A

Beta

1.03

Who are the company insiders with the largest holdings of Marinus Pharmaceuticals?

Marinus Pharmaceuticals' top insider investors include:
  1. Scott Braunstein (CEO)
  2. Steven Pfanstiel (CFO)
  3. Christina Shafer (Insider)
  4. Martha E Manning (SVP)
  5. Elan Ezickson (Director)
Learn More about top insider investors at Marinus Pharmaceuticals.