Rock Springs Capital Master Fund Form 3 Initial statement of insider ownership

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^*

Rock Springs Capital Management LP

(Last)

(First)

(Middle)

650 SOUTH EXETER ST. SUITE 1070

(Street)

BALTIMORE

21202

(City)

(State)

(Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
07/23/2020

3. Issuer Name and Ticker or Trading Symbol
Inozyme Pharma, Inc. [ INZY ]

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

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

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

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

	Form filed by One Reporting Person
X	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)

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)
Series A-2 Convertible Preferred Stock	⁽¹⁾	⁽¹⁾	Common Stock	467,884	⁽¹⁾	I	See Footnote⁽²⁾

1. Name and Address of Reporting Person^*

Rock Springs Capital Management LP

(Last)

(First)

(Middle)

650 SOUTH EXETER ST. SUITE 1070

(Street)

BALTIMORE

21202

(City)

(State)

(Zip)

1. Name and Address of Reporting Person^*

Rock Springs Capital Master Fund LP

(Last)

(First)

(Middle)

C/O WALKERS CORPORATE LIMITED, CAYMAN CO

CENTER, 27 HOSPITAL ROAD

(Street)

GEORAGE TOWN

KY-1-9008

(City)

(State)

(Zip)

1. Name and Address of Reporting Person^*

Rock Springs Capital LLC

(Last)

(First)

(Middle)

650 SOUTH EXETER ST. SUITE 1070

(Street)

BALTIMORE

21202

(City)

(State)

(Zip)

Explanation of Responses:

1. The Series A-2 Convertible Preferred Stock is convertible into Common Stock on a 7.4730-for-1 basis into the number of shares of Common Stock as shown in Column 3 at any time at the holder's election, and automatically upon the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.

2. The securities reported herein are held of record by Rock Springs Capital Master Fund LP ("Master Fund"). Rock Springs Capital LLC ("RSC") is the general partner of Rock Springs Capital Management LP ("RSCM") which is the investment manager to Master Fund. RSC and RSCM may therefore be deemed to have or share beneficial ownership of the Series A-2 Convertible Preferred Stock held directly by Master Fund.

Remarks:

Exhibit Index: 24.1 Power of Attorney

	Rock Springs Capital Management LP, By: /s/ Stephen Basso, Attorney-in-Fact	07/23/2020
	Rock Springs Capital Master Fund LP, By: /s/ Stephen Basso, Attorney-in-Fact	07/23/2020
	Rock Springs Capital LLC, By: /s/ Stephen Basso, Attorney-in-Fact	07/23/2020
	** 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).
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Rock Springs Capital Master Fund Form 3Initial statement of insider ownership