Ownership Submission

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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(Print or Type Responses)

1. Name and Address of Reporting Person ^*

Ahrens Brenton Karl

2. Date of Event Requiring Statement (Month/Day/Year)
05/24/2018

3. Issuer Name and Ticker or Trading Symbol
Iterum Therapeutics plc [ITRM]

(Last)

(First)

(Middle)

C/O CANAAN PARTNERS, 285 RIVERSIDE AVE., SUITE 250

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

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

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

(Street)

WESTPORT, CT 06880

6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

(City)

(State)

(Zip)

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)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.			SEC 1473 (7-02)
	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 control number.

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 of Derivative Security: 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		6. Nature of Indirect Beneficial Ownership (Instr. 5)
Series A Preferred Shares	⁽¹⁾	⁽¹⁾	Ordinary Shares	721,408	$ ⁽¹⁾	I	By Canaan X, L.P. ⁽²⁾
Series B-1 Preferred Shares	⁽³⁾	⁽³⁾	Ordinary Shares	275,446	$ ⁽³⁾	I	By Canaan X, L.P. ⁽²⁾
Series B-2 Preferred Shares	⁽⁴⁾	⁽⁴⁾	Ordinary Shares	229,660	$ ⁽⁴⁾	I	By Canaan X, L.P. ⁽²⁾

Reporting Owners

Reporting Owner Name / Address	Relationships
Reporting Owner Name / Address	Director	10% Owner	Officer	Other
Ahrens Brenton Karl C/O CANAAN PARTNERS 285 RIVERSIDE AVE., SUITE 250 WESTPORT, CT 06880	X

Signatures

/s/ Janine MacDonald, Attorney-in-Fact for Brenton K. Ahrens		05/24/2018
^**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	The Series A Preferred Shares are convertible into Ordinary Shares of the Issuer at the option of the holder and have no expiration date. The Series A Preferred Shares will automatically convert into Ordinary Shares of the Issuer on a 1-to-1 basis upon closing of the initial public offering of the Issuer.
(2)	These shares are held directly by Canaan X L.P. (the "Canaan Fund"). The sole general partner of the Canaan Fund is Canaan Partners X LLC ("Canaan X", and together with the Canaan Fund, the "Canaan Entities"). Investment and voting decisions with respect to the shares held by the Canaan Fund are made by the managers of Canaan X, collectively. The Reporting Person, a manager and member of Canaan X, serves as the representative of the Canaan Entities on the Issuer's board of directors. The Reporting Person disclaims Section 16 beneficial ownership in the securities held by the Canaan Entities, except to the extent of his pecuniary interest therein, if any, in such securities by virtue of the limited liability company interests he owns in Canaan X.
(3)	The Series B-1 Preferred Shares are convertible into Ordinary Shares of the Issuer at the option of the holder and have no expiration date. The Series B-1 Preferred Shares will automatically convert into Ordinary Shares of the Issuer on a 1-to-1 basis upon closing of the initial public offering of the Issuer.
(4)	The Series B-2 Preferred Shares are convertible into Ordinary Shares of the Issuer at the option of the holder and have no expiration date. The Series B-2 Preferred Shares will automatically convert into Ordinary Shares of the Issuer on a 1-to-1 basis upon closing of the initial public offering of the Issuer.
Remarks: Exhibit 24 - Power of Attorney

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