X0306 4 2020-04-21 0 0001561550 Datadog, Inc. DDOG 0001619710 ICONIQ STRATEGIC PARTNERS II, L.P. C/O ICONIQ CAPITAL 394 PACIFIC AVENUE, 2ND FLOOR SAN FRANCISCO CA 94111 0 0 1 0 0001619682 ICONIQ STRATEGIC PARTNERS II-B, L.P. C/O ICONIQ CAPITAL 394 PACIFIC AVENUE, 2ND FLOOR SAN FRANCISCO CA 94111 0 0 1 0 0001665116 ICONIQ Strategic Partners II Co-Invest, L.P., DD Series C/O ICONIQ CAPITAL 394 PACIFIC AVENUE, 2ND FLOOR SAN FRANCISCO CA 94111 0 0 1 0 0001702932 ICONIQ Strategic Partners II GP, L.P. C/O ICONIQ CAPITAL 394 PACIFIC AVENUE, 2ND FLOOR SAN FRANCISCO CA 94111 0 0 1 0 0001702831 ICONIQ Strategic Partners II TT GP, Ltd C/O ICONIQ CAPITAL 394 PACIFIC AVENUE, 2ND FLOOR SAN FRANCISCO CA 94111 0 0 1 0 0001678064 ICONIQ Strategic Partners III, L.P. C/O ICONIQ CAPITAL 394 PACIFIC AVENUE, 2ND FLOOR SAN FRANCISCO CA 94111 0 0 1 0 0001678109 ICONIQ Strategic Partners III-B, L.P. C/O ICONIQ CAPITAL 394 PACIFIC AVENUE, 2ND FLOOR SAN FRANCISCO CA 94111 0 0 1 0 0001766963 ICONIQ Strategic Partners III GP, L.P. C/O ICONIQ CAPITAL 394 PACIFIC AVENUE, 2ND FLOOR SAN FRANCISCO CA 94111 0 0 1 0 0001788796 ICONIQ Strategic Partners III TT GP, Ltd. C/O ICONIQ CAPITAL 394 PACIFIC AVENUE, 2ND FLOOR SAN FRANCISCO CA 94111 0 0 1 0 Class A Common Stock 2020-04-21 4 C 0 1832371 0.00 A 2564608 D Class A Common Stock 2020-04-21 4 C 0 1434374 0.00 A 2007566 D Class A Common Stock 2020-04-21 4 C 0 666158 0.00 A 927826 D Class A Common Stock 2020-04-21 4 C 0 408849 0.00 A 408849 D Class A Common Stock 2020-04-21 4 C 0 436857 0.00 A 436857 D Class A Common Stock 199500 D Class A Common Stock 325500 D Class A Common Stock 16104 D Class A Common Stock 16104 D Class B Common Stock 2020-04-21 4 C 0 1832371 0.00 D Class A Common Stock 1832371 8069954 D Class B Common Stock 2020-04-21 4 C 0 1434374 0.00 D Class A Common Stock 1434374 6317135 D Class B Common Stock 2020-04-21 4 C 0 666158 0.00 D Class A Common Stock 666158 2938363 D Class B Common Stock 2020-04-21 4 C 0 408849 0.00 D Class A Common Stock 408849 0 D Class B Common Stock 2020-04-21 4 C 0 436857 0.00 D Class A Common Stock 436857 0 D Class B Common Stock Class A Common Stock 1890426 1890426 D Class B Common Stock Class A Common Stock 3084381 3084381 D On April 21, 2020, ICONIQ Strategic Partners II, LP ("ICONIQ II") converted in the aggregate 1,832,371 shares of the Issuer's Class B Common Stock into 1,832,371 shares of the Issuer's Class A Common Stock. The shares are held by ICONIQ II. On April 21, 2020, ICONIQ Strategic Partners II-B, LP ("ICONIQ II-B") converted in the aggregate 1,434,374 shares of the Issuer's Class B Common Stock into 1,434,374 shares of the Issuer's Class A Common Stock. The shares are held by ICONIQ II-B. On April 21, 2020, ICONIQ Strategic Partners II Co-Invest, L.P., DD Series ("ICONIQ II Co-Invest") converted in the aggregate 666,158 shares of the Issuer's Class B Common Stock into 666,158 shares of the Issuer's Class A Common Stock. The shares are held by ICONIQ II Co-Invest. On April 21, 2020, ICONIQ Strategic Partners III, LP ("ICONIQ III") converted in the aggregate 408,849 shares of the Issuer's Class B Common Stock into 408,849 shares of the Issuer's Class A Common Stock. The shares are held by ICONIQ III. On April 21, 2020, ICONIQ Strategic Partners III-B, LP ("ICONIQ III-B") converted in the aggregate 436,857 shares of the Issuer's Class B Common Stock into 436,857 shares of the Issuer's Class A Common Stock. The shares are held by ICONIQ III-B. The shares are held by ICONIQ Strategic Partners IV, L.P. ("ICONIQ IV"). The shares are held by ICONIQ Strategic Partners IV-B, L.P. ("ICONIQ IV-B"). Iconiq Strategic Partners II GP, L.P. ("ICONIQ II GP") is the sole general partner of each of ICONIQ II, ICONIQ II-B and ICONIQ II Co-Invest. ICONIQ Strategic Partners II TT GP, Ltd. ("ICONIQ II Parent GP") is the sole general partner of ICONIQ II GP. Iconiq Strategic Partners III GP, L.P. ("ICONIQ III GP") is the sole general partner of each of ICONIQ III and ICONIQ III-B. ICONIQ Strategic Partners III TT GP, Ltd. ("ICONIQ III Parent GP") is the sole general partner of ICONIQ III GP. ICONIQ Strategic Partners IV GP, L.P. ("ICONIQ IV GP") is the sole general partner of ICONIQ IV and ICONIQ IV-B. ICONIQ Strategic Partners IV TT GP, Ltd. ("ICONIQ IV Parent GP") is the general partner of ICONIQ IV GP. Divesh Makan ("Makan") and William J.G. Griffith ("Griffith") are the sole equity holders and directors of ICONIQ II Parent GP, ICONIQ III Parent GP and ICONIQ IV Parent GP. Each of ICONIQ II GP, ICONIQ III GP, ICONIQ II Parent GP, ICONIQ III Parent GP, Makan and Griffith disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its or his pecuniary interest therein, if any. This report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose. Each of ICONIQ IV GP, ICONIQ IV Parent GP, Makan and Griffith disclaims beneficial ownership of the securities reported herein for purposes of Section 16 and the Exchange Act, except to the extent of its or his pecuniary interest therein, if any. This report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose. Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon the earlier of: (i) any transfer, whether or not for value, except for certain "Permitted Transfers" as defined in the Issuer's amended and restated certificate of incorporation, and (ii) the tenth anniversary of the Issuer's initial public offering of its Class A Common Stock. These shares are directly held by Makan through family trust(s) that he controls. Makan disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Exchange Act, except to the extent of its or his pecuniary interest therein, if any. This report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose. These shares are directly held by Griffith through family trust(s) that he controls. Griffith disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Exchange Act, except to the extent of its or his pecuniary interest therein, if any. This report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose. This Form 4 is the first of two Form 4's being filed relating to the same event. The Form 4 has been split into two filings because there are more than 10 Reporting Persons in total, and the SEC's EDGAR filing system limits a single Form 4 to a maximum of 10 Reporting Persons. Each Form 4 will be filed by Designated Filer ICONIQ Strategic Partners II, L.P. ICONIQ Strategic Partners II, L.P., By: ICONIQ Strategic Partners II GP, L.P., its General Partner, By: ICONIQ Strategic Partners II TT GP, Ltd, its General Partner, By: Kevin Foster, Title: Sr. Vice President, /s/ Kevin Foster 2020-04-23 ICONIQ Strategic Partners II-B, L.P., By: ICONIQ Strategic Partners II GP, L.P., its General Partner, By: ICONIQ Strategic Partners II TT GP, Ltd., its General Partner, /s/ Kevin Foster 2020-04-23 ICONIQ Strategic Partners II Co-Invest, L.P., DD Series, By: ICONIQ Strategic Partners II GP, L.P., its General Partner, By: ICONIQ Strategic Partners II TT GP, Ltd., its General Partner, /s/ Kevin Foster 2020-04-23 ICONIQ Strategic Partners II GP, L.P., By: ICONIQ Strategic Partners II TT GP, Ltd., its General Partner, /s/ Kevin Foster 2020-04-23 ICONIQ Strategic Partners II TT GP, Ltd., /s/ Kevin Foster 2020-04-23 ICONIQ Strategic Partners III, L.P., By: ICONIQ Strategic Partners III GP, L.P., its General Partner, By: ICONIQ Strategic Partners III TT GP, Ltd., its General Partner, By: Kevin Foster, Title: Senior Vice President, /s/ Kevin Foster 2020-04-23 ICONIQ Strategic Partners III-B, L.P., By: ICONIQ Strategic Partners III GP, L.P., its General Partner, By: ICONIQ Strategic Partners III TT GP, Ltd., its General Partner, By: Kevin Foster, Title: Senior Vice President, /s/ Kevin Foster 2020-04-23 ICONIQ Strategic Partners III GP, L.P., By: ICONIQ Strategic Partners III TT GP, Ltd., its General Partner, /s/ Kevin Foster 2020-04-23 ICONIQ Strategic Partners III TT GP, Ltd., /s/ Kevin Foster 2020-04-23