Ownership Submission
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
OMB APPROVAL
OMB Number: 3235-0287
Expires: January 31, 2005
Estimated average burden hours per response... 0.5

(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.
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. SEC 1474 (9-02)

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.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.