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, Section 17(a) of the Public Utility Holding Company Act of 1935 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 * Huggenberger Raymond   2. Issuer Name and Ticker or Trading Symbol Inogen Inc [INGN] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 326 BOLLAY DRIVE 3. Date of Earliest Transaction (Month/Day/Year) 08/15/2018 (Street) GOLETA, CA 93117 4. If Amendment, Date 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 (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 Common Stock 08/15/2018   M   1,000 A $ 8.37 8,797 D   Common Stock 08/15/2018   M   4,500 A $ 16.62 13,297 D   Common Stock 08/15/2018   M   2,500 A $ 38.54 15,797 D   Common Stock 08/15/2018   M   2,500 A $ 44.19 18,297 D   Common Stock 08/15/2018   S(1)   706 D $ 226.299 (2) 17,591 D   Common Stock 08/15/2018   S(1)   3,178 D $ 227.1849 (3) 14,413 D   Common Stock 08/15/2018   S(1)   1,110 D $ 228.5685 (4) 13,303 D   Common Stock 08/15/2018   S(1)   3,701 D $ 229.4292 (5) 9,602 D   Common Stock 08/15/2018   S(1)   1,605 D $ 230.4319 (6) 7,997 D   Common Stock 08/15/2018   S(1)   200 D $ 231.0685 (7) 7,797 D

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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

Stock Option (right to buy)

$ 8.37

08/15/2018

M

1,000

(8)

10/09/2023

Common Stock

1,000

$ 0

2,000

D

Stock Option (right to buy)

$ 16.62

08/15/2018

M

4,500

(9)

03/31/2021

Common Stock

4,500

$ 0

26,656

D

Stock Option (right to buy)

$ 38.54

08/15/2018

M

2,500

(10)

05/15/2022

Common Stock

2,500

$ 0

42,900

D

Stock Option (right to buy)

$ 44.19

08/15/2018

M

2,500

(11)

05/11/2023

Common Stock

2,500

$ 0

75,300

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Huggenberger Raymond 326 BOLLAY DRIVE GOLETA, CA 93117	X

Signatures

/s/ Alison Bauerlein, as Attorney-in-Fact		08/16/2018
**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)	The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 2, 2018.
(2)	Represents the weighted average share price of an aggregate total of 706 shares sold in the price range of $225.71 to $226.51 by the reporting person. The reporting person undertakes to provide upon request by the Commission staff, the issuer or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
(3)	Represents the weighted average share price of an aggregate total of 3,178 shares sold in the price range of $226.76 to $227.60 by the reporting person. The reporting person undertakes to provide upon request by the Commission staff, the issuer or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
(4)	Represents the weighted average share price of an aggregate total of 1,110 shares sold in the price range of $228.00 to $228.97 by the reporting person. The reporting person undertakes to provide upon request by the Commission staff, the issuer or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
(5)	Represents the weighted average share price of an aggregate total of 3,701 shares sold in the price range of $229.00 to $229.84 by the reporting person. The reporting person undertakes to provide upon request by the Commission staff, the issuer or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
(6)	Represents the weighted average share price of an aggregate total of 1,605 shares sold in the price range of $230.00 to $230.96 by the reporting person. The reporting person undertakes to provide upon request by the Commission staff, the issuer or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
(7)	Represents the weighted average share price of an aggregate total of 200 shares sold in the price range of $231.03 to $231.22 by the reporting person. The reporting person undertakes to provide upon request by the Commission staff, the issuer or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
(8)	Subject to the reporting person's continuing service, one forty-eighth (1/48th) of the shares subject to the option shall vest each month on the same day as the vesting commencement date, such that the shares subject to the option shall become fully vested and exercisable on the fourth (4th) anniversary of the vesting commencement date. The vesting commencement date for this option is October 1, 2013.
(9)	Subject to the reporting person's continuing service, 1/48th of the total shares subject to the option shall vest every month after March 1, 2014.
(10)	Subject to the reporting person's continuing service, twenty-five percent (25%) of the shares subject to the option shall vest and become exercisable on the one year anniversary of the vesting commencement date, and thereafter, one forty-eighth (1/48th) of the total shares subject to the option shall vest each month on the same day as the vesting commencement date. The vesting commencement date for this option is May 1, 2015.
(11)	Subject to the reporting person's continuing service, twenty-five percent (25%) of the shares subject to the option shall vest and become exercisable on the one year anniversary of the vesting commencement date, and thereafter, one forty-eighth (1/48th) of the shares subject to the option shall vest each month on the same day as the vesting commencement date, such that the shares subject to the option shall become fully vested and exercisable on the fourth (4th) anniversary of the vesting commencement date. The vesting commencement date for this option is May 1, 2016.

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