X0306 4 2019-11-13 0 0001517413 Fastly, Inc. FSLY 0001552638 August Capital Management VI, L.L.C. C/O AUGUST CAPITAL PMB #456, 600 4TH STREET SAN FRANCISCO CA 94107 0 0 1 0 0001552637 August Capital VI, L.P. C/O AUGUST CAPITAL PMB #456, 600 4TH STREET SAN FRANCISCO CA 94107 0 0 1 0 0001552636 August Capital VI Special Opportunities, L.P. C/O AUGUST CAPITAL PMB #456, 600 4TH STREET SAN FRANCISCO CA 94107 0 0 1 0 0001547424 Hartenbaum Howard C/O AUGUST CAPITAL PMB #456, 600 4TH STREET SAN FRANCISCO CA 94107 0 0 1 0 0001191203 CARLBORG W ERIC C/O AUGUST CAPITAL PMB #456, 600 4TH STREET SAN FRANCISCO CA 94107 0 0 1 0 Class A Common Stock 2019-11-13 4 C 0 2886970 0.00 A 2886970 I See Footnote Class A Common Stock 2019-11-13 4 C 0 2417883 0.00 A 2417883 I See Footnote Class A Common Stock 2019-11-13 4 J 0 2886970 0.00 D 0 I See Footnote Class A Common Stock 2019-11-13 4 J 0 2417883 0.00 D 0 I See Footnote Class A Common Stock 2019-11-13 4 J 0 152023 0.00 A 152023 I See Footnote Class A Common Stock 2019-11-13 4 S 0 52616 20.6641 D 99407 I See Footnote Class A Common Stock 2019-11-13 4 S 0 23395 21.1846 D 76012 I See Footnote Class A Common Stock 2019-11-13 4 J 0 105788 0.00 A 105788 I See Footnote Class B Common Stock 2019-11-13 4 C 0 2886970 0.00 D Class A Common Stock 2886970 5861425 I See Footnote Class B Common Stock 2019-11-13 4 C 0 2417883 0.00 D Class A Common Stock 2417883 4909036 I See Footnote 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. 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 voting 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. Represents a pro-rata, in-kind distribution by August VI, without additional consideration, to its partners, members and assigns. Represents a pro-rata, in-kind distribution by August VI SO, without additional consideration, to its partners, members and assigns. Represents a pro-rata, in-kind distribution by August VI and August VI SO, without additional consideration, to their respective partners, members and assigns. These shares are held directly by Howard Hartenbaum. 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. 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. These shares are held directly by W. Eric Carlborg. 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. 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. August Capital Management VI, L.L.C., By: /s/ Abigail Hipps, Attorney-in-Fact 2019-11-15 August Capital VI, L.P., By: /s/ Abigail Hipps, Attorney-in-Fact 2019-11-15 August Capital VI Special Opportunities, L.P., By: /s/ Abigail Hipps, Attorney-in-Fact 2019-11-15 Howard Hartenbaum, By: /s/ Abigail Hipps, Attorney-in-Fact 2019-11-15 W. Eric Carlborg, By: /s/ Abigail Hipps, Attorney-in-Fact 2019-11-15