FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN 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 *
CANAAN X L.P.
   2. Issuer Name and Ticker or Trading Symbol
Iterum Therapeutics plc [ITRM] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
2765 SAND HILL ROAD		 3. Date of Earliest Transaction (Month/Day/Year)
01/21/2020
(Street)

MENLO PARK, CA 94025		 4. If Amendment, Date 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
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)		 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)		 4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)		 5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)		 6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)		 7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)		 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)		 5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)		 6. Date Exercisable and Expiration Date
(Month/Day/Year)		 7. Title and Amount of Underlying Securities
(Instr. 3 and 4)		 8. Price of Derivative Security
(Instr. 5)		 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)		 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)		 11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
6.500% Exchangeable Senior Subordinated Note due 2025 (1) (2) 01/21/2020   A   $ 2,000,000     (1)(2) 01/31/2025 Ordinary Shares 2,000,000 $ 2,000,000 $ 2,000,000 D (3)  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
CANAAN X L.P.
2765 SAND HILL ROAD
MENLO PARK, CA 94025		   X   X    
Canaan Partners X LLC
2765 SAND HILL ROAD
MENLO PARK, CA 94025		   X   X    

Signatures

 Canaan X L.P., By: Canaan Partners X LLC, its general partner, By: /s/ Janine MacDonald, Attorney-in-Fact   01/23/2020
**Signature of Reporting Person Date
 Canaan Partners X LLC, By: /s/ Janine MacDonald, Attorney-in-Fact   01/23/2020
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(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) On January 21, 2020, Iterum Therapeutics Bermuda Limited (the "Issuer"), a wholly-owned subsidiary of Iterum Therapeutics plc (the "Company"), issued and sold, among other things, 6.500% exchangeable senior subordinated notes due 2025 (the "Exchangeable Notes") pursuant to a securities purchase agreement among the Issuer, the Company, the Company's wholly-owned subsidiaries and a group of accredited investors. Subject to the terms of the indenture governing the Exchangeable Notes, on or after January 21, 2021 until the second scheduled trading day immediately preceding January 15, 2025, holders may exchange the Exchangeable Notes at any time. The Exchangeable Notes are exchangeable into, at the Company's election, Ordinary Shares of the Company, cash or a combination of Ordinary Shares and cash, at an initial exchange rate of 1,000 shares per $1,000
(2) (continued from footnote 1) principal amount of Exchangeable Notes (equivalent to an initial exchange price of approximately $1.00 per Ordinary Share). The Exchangeable Notes mature on January 31, 2025, unless earlier exchanged, redeemed or repurchased in accordance with their terms.
(3) This Exchangeable Note is 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"), and each may be deemed to have sole voting, investment and dispositive power with respect to the securities held by the Canaan Fund. Brenton K. Ahrens, a manager and member of Canaan X, serves as the representative of the Canaan Entities on the Company's board of directors. Investment and voting decisions with respect to the securities held by the Canaan Fund are made by the managers of Canaan X, collectively. Canaan X disclaims Section 16 beneficial ownership of the securities held by the Canaan Fund, except to the extent, if any, of its pecuniary interest therein.

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