Sec Form 4 Filing - August Capital Management VI, L.L.C. @ Fastly, Inc. - 2019-11-13

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 August Capital Management VI, L.L.C. 2. Issuer Name and Ticker or Trading Symbol Fastly, Inc. [ FSLY] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O AUGUST CAPITAL, PMB #456, 600 4TH STREET 3. Date of Earliest Transaction (MM/DD/YY) 11/13/2019 (Street) SAN FRANCISCO, CA94107 4. If Amendment, Date Original Filed (MM/DD/YY) 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 (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 Class A Common Stock 11/13/2019 C 2,886,970 A $ 0 2,886,970 I See Footnote ( 1 ) Class A Common Stock 11/13/2019 C 2,417,883 A $ 0 2,417,883 I See Footnote ( 2 ) Class A Common Stock 11/13/2019 J( 3 ) 2,886,970 D $ 0 0 I See Footnote ( 1 ) Class A Common Stock 11/13/2019 J( 4 ) 2,417,883 D $ 0 0 I See Footnote ( 2 ) Class A Common Stock 11/13/2019 J( 5 ) 152,023 A $ 0 152,023 I See Footnote ( 6 ) Class A Common Stock 11/13/2019 S 52,616 D $ 20.6641 ( 7 ) 99,407 I See Footnote ( 6 ) Class A Common Stock 11/13/2019 S 23,395 D $ 21.1846 ( 8 ) 76,012 I See Footnote ( 6 ) Class A Common Stock 11/13/2019 J( 5 ) 105,788 A $ 0 105,788 I See Footnote ( 9 )

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 Class B Common Stock ( 10 ) 11/13/2019 C 2,886,970 ( 10 ) ( 10 ) Class A Common Stock 2,886,970 $ 0 5,861,425 I See Footnote ( 1 ) Class B Common Stock ( 10 ) 11/13/2019 C 2,417,883 ( 10 ) ( 10 ) Class A Common Stock 2,417,883 $ 0 4,909,036 I See Footnote ( 2 )

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other August Capital Management VI, L.L.C. C/O AUGUST CAPITAL PMB #456, 600 4TH STREET SAN FRANCISCO, CA94107 X August Capital VI, L.P. C/O AUGUST CAPITAL PMB #456, 600 4TH STREET SAN FRANCISCO, CA94107 X August Capital VI Special Opportunities, L.P. C/O AUGUST CAPITAL PMB #456, 600 4TH STREET SAN FRANCISCO, CA94107 X Hartenbaum Howard C/O AUGUST CAPITAL PMB #456, 600 4TH STREET SAN FRANCISCO, CA94107 X CARLBORG W ERIC C/O AUGUST CAPITAL PMB #456, 600 4TH STREET SAN FRANCISCO, CA94107 X Signatures August Capital Management VI, L.L.C., By: /s/ Abigail Hipps, Attorney-in-Fact 11/15/2019 Signature of Reporting Person Date August Capital VI, L.P., By: /s/ Abigail Hipps, Attorney-in-Fact 11/15/2019 Signature of Reporting Person Date August Capital VI Special Opportunities, L.P., By: /s/ Abigail Hipps, Attorney-in-Fact 11/15/2019 Signature of Reporting Person Date Howard Hartenbaum, By: /s/ Abigail Hipps, Attorney-in-Fact 11/15/2019 Signature of Reporting Person Date W. Eric Carlborg, By: /s/ Abigail Hipps, Attorney-in-Fact 11/15/2019 Signature of Reporting Person Date

Explanation of Responses:

( 1 )These shares are held directly by August Capital VI, L.P. ("August VI"). August Capital Management VI, L.L.C. ("ACM VI") is the general partner of August VI and may be deemed to have sole voting and investment power over the shares held by August VI. David M. Hornik, Howard Hartenbaum and W. Eric Carlborg are members of ACM VI, and may be deemed to have shared voting and investment power over the shares held by August VI. Each such person and entity disclaims the existence of a "group" and disclaims beneficial ownership of any securities, except to the extent of such person's or entity's pecuniary interest in such securities. ( 2 )These shares are held directly by August Capital VI Special Opportunities, L.P. ("August VI SO"). ACM VI is the general partner of August VI SO and may be deemed to have sole voting and investment power over the shares held by August VI SO. David M. Hornik, Howard Hartenbaum and W. Eric Carlborg are members of ACM VI, and may be deemed to have shared v oting and investment power over the shares held by August VI SO. Each such person and entity disclaims the existence of a "group" and disclaims beneficial ownership of any securities, except to the extent of such person's or entity's pecuniary interest in such securities. ( 3 )Represents a pro-rata, in-kind distribution by August VI, without additional consideration, to its partners, members and assigns. ( 4 )Represents a pro-rata, in-kind distribution by August VI SO, without additional consideration, to its partners, members and assigns. ( 5 )Represents a pro-rata, in-kind distribution by August VI and August VI SO, without additional consideration, to their respective partners, members and assigns. ( 6 )These shares are held directly by Howard Hartenbaum. ( 7 )The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $20.11 to $21.105, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. ( 8 )The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $21.11 to $21.40, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. ( 9 )These shares are held directly by W. Eric Carlborg. ( 10 )Each share of Class B Common Stock will convert automatically into Class A Common Stock upon any transfer except certain "Permitted Transfers" described in the Issuer's amended and restated certificate of incorporation. In addition, all outstanding shares of Class B Common Stock will convert into shares of Class A Common Stock upon the earliest of (i) the first trading day falling nine months after the date on which the shares of Class B Common Stock represent less than 10% of the aggregate number of outstanding shares of Class A Common Stock and Class B Common Stock, (ii) the date specified by the vote of the holders of Class B Common Stock representing at least a majority of the outstanding shares of Class B Common Stock, or (iii) the first trading day falling ten years after the Effective Time as defined in the Issuer's amended and restated certificate of incorporation.

Remarks: This report is one of two reports, each on a separate Form 4, but relating to the same transactions being filed by the entities affiliated with August Capital and their applicable members.

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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