Sec Form 4 Filing - Deklich Dejan @ 8X8 INC /DE/ - 2019-09-19

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 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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1. Name and Address of Reporting Person Deklich Dejan 2. Issuer Name and Ticker or Trading Symbol 8X8 INC /DE/ [ EGHT] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) EVP, Chief Product Officer (Last) (First) (Middle) C/O 8X8, INC, 2125 O'NEL DRIVE 3. Date of Earliest Transaction (MM/DD/YY) 09/19/2019 (Street) SAN JOSE, CA95131 4. If Amendment, Date Original Filed (MM/DD/YY) 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 (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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 09/19/2019 M( 1 ) 7,039 A $ 0 8,873 D Common Stock 09/19/2019 F( 2 ) 3,489 D $ 23.89 5,384 D Common Stock 09/19/2019 M( 3 ) 11,540 A $ 0 16,924 D Common Stock 09/19/2019 M( 3 ) 11,540 A $ 0 28,464 D Common Stock 09/19/2019 F( 3 )( 4 ) 11,443 D $ 23.89 17,021 D

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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 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 Restricted Stock Units $ 0 ( 5 ) 09/19/2019 M( 1 ) 7,039 09/19/2018( 6 ) 09/19/2021 Common Stock 7,039 $ 0 14,078 D Performance Stock Units $ 0 ( 5 ) 09/19/2019 M 11,540 09/17/2019( 3 ) 09/17/2020 Common Stock 11,540 $ 0 11,540 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Deklich Dejan C/O 8X8, INC 2125 O'NEL DRIVE SAN JOSE, CA95131 EVP, Chief Product Officer Signatures /s/ Sheryl Andersen as Attorney-in-Fact for Dejan Deklich 09/23/2019 Signature of Reporting Person Date

Explanation of Responses:

( 1 )7,039 Restricted Stock Units became fully vested and have been converted to Common Stock. ( 2 )Payment of tax liability by withholding securities incident to vesting of restricted stock units. ( 3 )As previously reported on a Form 4, the reporting person was awarded 23,080 performance share units (PSUs) on September 19, 2017, of which 50% were eligible to vest on each of the second and third anniversaries of the award date. On September 19, 2019, the first installment of 11,540 PSUs vested at 200% of target, such that 23,080 shares became issuable. Of these 11,637 were issued to the reporting person and the remaining 11,443 were withheld to pay the associated tax liability. The 11,540 shares of common stock reported in Table I correspond to the additional shares issued in excess of 11,540 share target for the first vesting installment. ( 4 )Payment of tax liability by withholding securities incident to vesting of performance stock units. ( 5 )Right to receive one or more shares of EGHT Common Stock. ( 6 )This award vests at the rate of one-fourth of such shares at September 19, 2018, one-fourth of such shares at September 19, 2019, one-fourth of such shares at September 19, 2020 and one-fourth of such shares at September 19, 2021.

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 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).

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