Security key
56854Q200
MARINUS PHARMACEUTICALS, INC. - COMMON STOCK (MRNS)
CUSIP: 56854Q200
Q2 2024 13F Holders as of 30 Jun 2024
- Security type / class
- Equity / COMMON STOCK
- Total 13F shares
- 43,261,432
- Total 13F value
- $50,613,042
- Share change
- -10,580,831
- Put/Call ratio
- 31%
- SEC-reported price per share
- $1.17
- Number of holders
- 87
- Value change
- -$154,128,331
- Number of buys
- 53
- Number of sells
- 83
- Shares outstanding
- 54,731,500
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q2 2024
Institutions
87
Top holders
10
MRNS full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q3 2025
MARINUS PHARMACEUTICALS, INC. SEC filings
MARINUS PHARMACEUTICALS, INC. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 56854Q200
Recent filing periods:
Ownership snapshot
Top reported holders of MRNS - MARINUS PHARMACEUTICALS, INC. - COMMON STOCK (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
SUVRETTA CAPITAL MANAGEME...
Disclosed value leader
SUVRETTA CAPITAL MANAGEME...
Comparable rows
15/15
Latest evidence
31 Mar 2024
13F
Lead comparable stake: 9.3%
Showing 1-6 of 15 holder rows.
Quick read
SUVRETTA CAPITAL MANAGEMENT, LLC leads the comparable SEC ownership view at 9.3%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens SUVRETTA CAPITAL MANAGEMENT, LLC's linked filing trail.
Comparable ownership
Top 5
SUVRETTA CAPITAL MANAGEMENT, LLC
9.3%
BlackRock Finance, Inc.
8.6%
Avoro Capital Advisors LLC
7.6%
FRANKLIN RESOURCES INC
6.4%
Cormorant Asset Management, LP
5.9%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| SUVRETTA CAPITAL MANAGEMENT, LLC |
13F
Company
|
9.3%
|
$46,181,021
5,108,520 shares
|
— | 31 Mar 2024 |
| BlackRock Finance, Inc. |
13F
Company
|
8.6%
|
$42,673,872
4,720,561 shares
|
— | 31 Mar 2024 |
| Avoro Capital Advisors LLC |
13F
Company
|
7.6%
|
$37,431,087
4,140,607 shares
|
— | 31 Mar 2024 |
| FRANKLIN RESOURCES INC |
13F
Company
|
6.4%
|
$31,579,007
3,493,253 shares
|
— | 31 Mar 2024 |
| Cormorant Asset Management, LP |
13F
Company
|
5.9%
|
$29,380,000
3,250,000 shares
|
— | 31 Mar 2024 |
| JENNISON ASSOCIATES LLC |
13F
Company
|
5.4%
|
$26,811,582
2,965,883 shares
|
— | 31 Mar 2024 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q2 2024
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
87
Shares
43,261,432
Rows available
87
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q2 2024 vs Q3 2025 Across Filers
Q3 2025 holders
1
Q2 2024 holders
87
Holder diff
86
| Investor | Q3 2025 Shares | Q2 2024 Shares | Share Diff | Share Chg % | Q3 2025 value | Q2 2024 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend