SC US/E Expansion Fund I beneficially owns 1,000,000 shares of Class A Common Stock, which represents
approximately 0.4% of the outstanding Class A Common Stock calculated in accordance with the requirements of Rule 13d-3 under the Act.
Sequoia Capital Fund Parallel, LLC beneficially owns 1,243,586 shares of Class A Common Stock, which represents approximately 0.5% of the outstanding
Class A Common Stock calculated in accordance with the requirements of Rule 13d-3 under the Act.
Sequoia
Capital Fund, L.P. beneficially owns 8,084,687 shares of Class A Common Stock, which represents approximately 3.1% of the outstanding Class A Common Stock calculated in accordance with the requirements of Rule 13d-3 under the Act.
SC US/E Expansion Fund I MGMT, as the general partner of SC US/E Expansion Fund I, may be deemed
to beneficially own an aggregate of 3,150,331 shares of Class A Common Stock, which represents approximately 1.2% of the outstanding Class A Common Stock calculated in accordance with the requirements of Rule
13d-3 under the Act.
SC U.S. Venture Fund XIV may be deemed to beneficially own an aggregate of 15,435,912 shares
of Class A Common Stock directly owned by Sequoia Capital USV XIV Holdco, SC U.S. Venture Fund XIV, SC U.S. Venture Partners Fund XIV and SC U.S. Venture Fund XIV (Q), which together own 100% of the outstanding shares of Sequoia Capital USV XIV
Holdco, and which represents approximately 6.0% of the outstanding Class A Common Stock calculated in accordance with the requirements of Rule 13d-3 under the Act.
SC U.S. Venture Partners Fund XIV may be deemed to beneficially own an aggregate of 15,435,912 shares of Class A Common Stock directly owned by Sequoia
Capital USV XIV Holdco, SC U.S. Venture Fund XIV, SC U.S. Venture Partners Fund XIV and SC U.S. Venture Fund XIV (Q), which together own 100% of the outstanding shares of Sequoia Capital USV XIV Holdco, and which represents approximately 6.0% of the
outstanding Class A Common Stock calculated in accordance with the requirements of Rule 13d-3 under the Act.
SC U.S. Venture Fund XIV (Q) may be deemed to beneficially own an aggregate of 15,435,912 shares of Class A Common Stock directly owned by Sequoia
Capital USV XIV Holdco, SC U.S. Venture Fund XIV, SC U.S. Venture Partners Fund XIV and SC U.S. Venture Fund XIV (Q), which together own 100% of the outstanding shares of Sequoia Capital USV XIV Holdco, and which represents approximately 6.0% of the
outstanding Class A Common Stock calculated in accordance with the requirements of Rule 13d-3 under the Act.
Sequoia Capital Fund Management, L.P., as the general partner of Sequoia Capital Fund, L.P. and manager of Sequoia Capital Fund Parallel, LLC, may be deemed
to beneficially own an aggregate of 9,328,273 shares of Class A Common Stock, which represents approximately 3.6% of the outstanding Class A Common Stock calculated in accordance with the requirements of Rule
13d-3 under the Act.
SC U.S. XIV Management, as the general partner of Sequoia Capital USV XIV Holdco, SC U.S.
Venture Fund XIV, SC U.S. Venture Partners Fund XIV and SC U.S. Venture Fund XIV (Q), may be deemed to beneficially own an aggregate of 15,435,912 shares of Class A Common Stock, which represents approximately 6.0% of the outstanding
Class A Common Stock calculated in accordance with the requirements of Rule 13d-3 under the Act.
SC U.S.
Growth VI Management, as the general partner of Sequoia Capital U.S. Growth Fund VI and Sequoia Capital U.S. Growth VI Principals Fund, may be deemed to beneficially own an aggregate of 3,031,332 shares of Class A Common Stock, which represents
approximately 1.2% of the outstanding Class A Common Stock calculated in accordance with the requirements of Rule 13d-3 under the Act.
SC Global Growth II Management, as the general partner of Sequoia Capital U.S. Growth Fund II and Sequoia Capital U.S. Growth II Principals Fund, may be
deemed to beneficially own an aggregate of 4,473,182 shares of Class A Common Stock, which represents approximately 1.7% of the outstanding Class A Common Stock calculated in accordance with the requirements of Rule 13d-3 under the Act.