SEC FORM 3

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

Shafer Christina

(Last)

(First)

(Middle)

5 RADNOR CORP CENTER SUITE 500

100 MATSONFORD RD

(Street)

RADNOR

19087

(City)

(State)

(Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
06/15/2022

3. Issuer Name and Ticker or Trading Symbol
MARINUS PHARMACEUTICALS, INC. [ MRNS ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	Chief Commercial Officer

5. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	27,152⁽¹⁾	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
1. Title of Derivative Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
Stock Option (Right to Buy)	⁽²⁾	11/09/2030	Common Stock	128,000	$13.71	D
Stock Option (Right to Buy)	⁽³⁾	01/15/2031	Common Stock	15,000	$12.6	D
Stock Option (Right to Buy)	⁽⁴⁾	02/04/2032	Common Stock	57,900	$10.4	D

Explanation of Responses:

1. Includes: (i) 10,000 shares of restricted stock granted on November 9, 2020, of which 5,000 vested on November 9, 2021 and 1,505 of those shares were withheld to cover taxes, and the remaining 5,000 RSAs will vest on November 9, 2022, subject to the reporting person's continued service with the Issuer, (ii) 12,867 restricted stock units (RSUs) granted on February 4, 2022 that vest in three equal installments, with the first installment vesting on August 4, 2023, the second installment vesting on August 4, 2024, and the third installment vesting on August 4, 2024, subject to the reporting person's continued service with the Issuer, and (iii) 5,790 RSUs granted on May 24, 2022 that vest in two equal installments with the first installment vesting on August 4, 2023, and the second installment vesting on August 4, 2024, subject to the reporting person's continued service with the Issuer. Each RSU represents the right to receive one share of common stock of the Issuer.

2. An option to purchase 128,000 shares of common stock of the Issuer was granted on November 9, 2020, of which 25%, or 32,000 shares, vested and became exercisable on November 9, 2021 and the remaining shares underlying the option began vesting in 36 equal monthly installments on December 9, 2021.

3. An option to purchase 15,000 shares of common stock of the Issuer was granted on January 15, 2021. The shares underlying the option began vesting in 36 equal monthly installments on January 31, 2021.

4. An option to purchase 57,900 shares of common stock of the Issuer was granted on February 4, 2022. The shares underlying the option began vesting in 36 equal monthly installments on March 4, 2022.

Remarks:

Exhibit 24- Power of Attorney

	/s/Debra A. Mohollen, Attorney-in-Fact	06/23/2022
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.