UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
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SCHEDULE 13G
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Under the Securities Exchange Act of 1934
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(Amendment No. 1)*
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Marinus Pharmaceuticals, Inc.
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(Name of Issuer)
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Common Stock
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(Title of Class of Securities)
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56854Q200
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(CUSIP Number)
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December 31, 2023
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(Date of Event which Requires Filing of this Statement)
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1
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Names of Reporting Persons.
Cormorant Global Healthcare Master Fund, LP
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2
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Check the Appropriate Box if a Member of a Group (See Instructions)
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(a) [ ]
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(b) [x]
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3
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SEC Use Only
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4
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Citizenship or Place of Organization.
Cayman Islands
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Number
of Shares
Beneficially
Owned by
Each
Reporting
Person With
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5 Sole Voting Power
0 shares
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6 Shared Voting Power
3,250,000 shares
Refer to Item 4 below.
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7 Sole Dispositive Power
0 shares
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8 Shared Dispositive Power
3,250,000 shares
Refer to Item 4 below.
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9
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Aggregate Amount Beneficially Owned by Each Reporting Person
3,250,000 shares
Refer to Item 4 below.
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10
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Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions)
[ ] N/A
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11
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Percent of Class Represented by Amount in Row (9)*
5.96%
Refer to Item 4 below.
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12
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Type of Reporting Person (See Instructions)
PN (Partnership)
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1
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Names of Reporting Persons.
Cormorant Global Healthcare GP, LLC
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2
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Check the Appropriate Box if a Member of a Group (See Instructions)
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(a) [ ]
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(b) [x]
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3
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SEC Use Only
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4
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Citizenship or Place of Organization.
Delaware
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Number
of Shares
Beneficially
Owned by
Each
Reporting
Person With
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5 Sole Voting Power
0 shares
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6 Shared Voting Power
3,250,000 shares
Refer to Item 4 below.
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7 Sole Dispositive Power
0 shares
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8 Shared Dispositive Power
3,250,000 shares
Refer to Item 4 below.
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9
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Aggregate Amount Beneficially Owned by Each Reporting Person
3,250,000 shares
Refer to Item 4 below.
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10
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Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions)
[ ] N/A
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11
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Percent of Class Represented by Amount in Row (9)*
5.96%
Refer to Item 4 below.
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12
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Type of Reporting Person (See Instructions)
OO (Limited Liability Company)
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1
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Names of Reporting Persons.
Cormorant Asset Management, LP
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2
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Check the Appropriate Box if a Member of a Group (See Instructions)
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(a) [ ]
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(b) [x]
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3
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SEC Use Only
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4
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Citizenship or Place of Organization.
Delaware
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Number
of Shares
Beneficially
Owned by
Each
Reporting
Person With
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5 Sole Voting Power
0 shares
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6 Shared Voting Power
3,250,000 shares
Refer to Item 4 below.
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7 Sole Dispositive Power
0 shares
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8 Shared Dispositive Power
3,250,000 shares
Refer to Item 4 below.
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9
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Aggregate Amount Beneficially Owned by Each Reporting Person
3,250,000 shares
Refer to Item 4 below.
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10
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Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions)
[ ] N/A
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11
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Percent of Class Represented by Amount in Row (9)*
5.96%
Refer to Item 4 below.
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12
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Type of Reporting Person (See Instructions)
PN (Partnership)
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1
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Names of Reporting Persons.
Bihua Chen
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2
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Check the Appropriate Box if a Member of a Group (See Instructions)
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(a) [ ]
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(b) [x]
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3
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SEC Use Only
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4
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Citizenship or Place of Organization.
United States
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Number
of Shares
Beneficially
Owned by
Each
Reporting
Person With
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5 Sole Voting Power
0 shares
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6 Shared Voting Power
3,250,000 shares
Refer to Item 4 below.
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7 Sole Dispositive Power
0 shares
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8 Shared Dispositive Power
3,250,000 shares
Refer to Item 4 below.
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9
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Aggregate Amount Beneficially Owned by Each Reporting Person
3,250,000 shares
Refer to Item 4 below.
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10
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Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions)
[ ] N/A
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11
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Percent of Class Represented by Amount in Row (9)*
5.96%
Refer to Item 4 below.
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12
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Type of Reporting Person (See Instructions)
IN (Individual)
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(a)
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Name of Issuer
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Marinus Pharmaceuticals, Inc.
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(b)
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Address of Issuer’s Principal Executive Offices
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5 Radnor Corporate Center, Suite 500,
100 Matsonford Road, Radnor, PA 19087
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(a)
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Name of Person Filing
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Cormorant Global Healthcare Master Fund, LP
Cormorant Global Healthcare GP, LLC
Cormorant Asset Management, LP
Bihua Chen
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(b)
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Address of Principal Business Office or, if none, Residence
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200 Clarendon Street, 52nd Floor
Boston, MA 02116
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(c)
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Citizenship
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Cormorant Global Healthcare Master Fund, LP - Cayman Islands
Cormorant Global Healthcare GP, LLC - Delaware
Cormorant Asset Management, LP - Delaware
Bihua Chen - United States
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(d)
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Title of Class of Securities
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Common Stock
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(e)
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CUSIP Number
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56854Q200
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Item 3. |
If this statement is filed pursuant to §§240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
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(a)
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Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o).
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(b)
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Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c).
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(c)
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Insurance company as defined in Section 3(a)(19) of the Act (15 U.S.C. 78c).
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(d)
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Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8).
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(e)
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An investment adviser in accordance with §240.13d-1(b)(1)(ii)(E);
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(f)
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[ ]
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An employee benefit plan or endowment fund in accordance with §240.13d-1(b)(1)(ii)(F);
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(g)
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[ ]
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A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
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(h)
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[ ]
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A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
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(i)
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A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
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(j)
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A non-U.S. institution in accordance with §240.13d–1(b)(1)(ii)(J);
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(k)
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[ ]
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Group, in accordance with §240.13d-1(b)(1)(ii)(K).
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Item 4. |
Ownership***
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Item 5. |
Ownership of Five Percent or Less of a Class
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Item 6. |
Ownership of More than Five Percent on Behalf of Another Person
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Item 7. |
Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company
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Item 8. |
Identification and Classification of Members of the Group
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Item 9. |
Notice of Dissolution of Group
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Item 10. |
Certification
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CORMORANT GLOBAL HEALTHCARE MASTER
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FUND, LP
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By:
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Cormorant Global Healthcare GP, LLC
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its General Partner
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By:
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/s/ Bihua Chen
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Bihua Chen, Managing Member
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CORMORANT GLOBAL HEALTHCARE GP, LLC
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By:
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/s/ Bihua Chen
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Bihua Chen, Managing Member
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CORMORANT ASSET MANAGEMENT, LP
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By:
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Cormorant Asset Management GP, LLC
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its General Partner
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By:
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/s/ Bihua Chen
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Bihua Chen, Managing Member
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/s/ Bihua Chen
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Bihua Chen
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