X0609 4 2026-08-17 0001788451 Ethos Technologies Inc. LIFE 0001607841 SC US (TTGP), LTD. false 2800 SAND HILL ROAD SUITE 101 MENLO PARK CA 94025 0 0 1 0 0001742979 SC U.S. Venture XV Management, L.P. false 2800 SAND HILL ROAD SUITE 101 MENLO PARK CA 94025 0 0 1 0 0001627324 SEQUOIA CAPITAL U.S. VENTURE FUND XV, L.P. false 2800 SAND HILL ROAD SUITE 101 MENLO PARK CA 94025 0 0 1 0 0001635444 SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XV (Q), L.P. false 2800 SAND HILL ROAD SUITE 101 MENLO PARK CA 94025 0 0 1 0 0001635442 SEQUOIA CAPITAL U.S. VENTURE PARTNERS FUND XV, L.P. false 2800 SAND HILL ROAD SUITE 101 MENLO PARK CA 94025 0 0 1 0 0001635440 SEQUOIA CAPITAL U.S. VENTURE XV PRINCIPALS FUND, L.P. false 2800 SAND HILL ROAD SUITE 101 MENLO PARK CA 94025 0 0 1 0 0001743276 SC U.S. Growth VIII Management, L.P. false 2800 SAND HILL ROAD SUITE 101 MENLO PARK CA 94025 0 0 1 0 0001743290 Sequoia Capital U.S. Growth Fund VIII, L.P. false 2800 SAND HILL ROAD SUITE 101 MENLO PARK CA 94025 0 0 1 0 0 Class A Common Stock 2026-08-17 4 C 0 1204092 0 A 1204092 I Sequoia Capital U.S. Venture Fund XV, L.P. Class A Common Stock 2026-08-17 4 C 0 50699 0 A 50699 I Sequoia Capital U.S. Venture Partners Fund XV (Q), L.P. Class A Common Stock 2026-08-17 4 C 0 18231 0 A 18231 I Sequoia Capital U.S. Venture Partners Fund XV, L.P. Class A Common Stock 2026-08-17 4 C 0 185742 0 A 185742 I Sequoia Capital U.S. Venture XV Principals Fund, L.P. Class A Common Stock 2026-08-17 4 C 0 319862 0 A 319862 I Sequoia Capital U.S. Growth Fund VIII, L.P. Class A Common Stock 2026-08-17 4 J 0 1204092 0 D 0 I Sequoia Capital U.S. Venture Fund XV, L.P. Class A Common Stock 2026-08-17 4 J 0 50699 0 D 0 I Sequoia Capital U.S. Venture Partners Fund XV (Q), L.P. Class A Common Stock 2026-08-17 4 J 0 18231 0 D 0 I Sequoia Capital U.S. Venture Partners Fund XV, L.P. Class A Common Stock 2026-08-17 4 J 0 185742 0 D 0 I Sequoia Capital U.S. Venture XV Principals Fund, L.P. Class A Common Stock 2026-08-17 4 J 0 319862 0 D 0 I Sequoia Capital U.S. Growth Fund VIII, L.P. Class B Common Stock 2026-08-17 4 C 0 1204092 0 D Class A Common Stock 1204092 6823189 I Sequoia Capital U.S. Venture Fund XV, L.P. Class B Common Stock 2026-08-17 4 C 0 50699 0 D Class A Common Stock 50699 287297 I Sequoia Capital U.S. Venture Partners Fund XV (Q), L.P. Class B Common Stock 2026-08-17 4 C 0 18231 0 D Class A Common Stock 18231 103310 I Sequoia Capital U.S. Venture Partners Fund XV, L.P. Class B Common Stock 2026-08-17 4 C 0 185742 0 D Class A Common Stock 185742 1052540 I Sequoia Capital U.S. Venture XV Principals Fund, L.P. Class B Common Stock 2026-08-17 4 C 0 319862 0 D Class A Common Stock 319862 1812546 I Sequoia Capital U.S. Growth Fund VIII, L.P. The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the option of the holder thereof and has no expiration date. Represents a pro rata in-kind distribution of shares of Class A Common Stock of the Issuer to partners or members for no consideration and includes subsequent pro rata in-kind distributions by general partners or managing members to their respective partners or members for no consideration. SC US (TTGP), Ltd. is (i) the general partner of SC U.S. Growth VIII Management, L.P., which is the general partner of Sequoia Capital U.S. Growth Fund VIII, L.P. (GFVIII), and (ii) the general partner of SC U.S. Venture XV Management, L.P., which is the general partner of Sequoia Capital U.S. Venture Fund XV, L.P., Sequoia Capital U.S. Venture Partners Fund XV (Q), L.P., Sequoia Capital U.S. Venture Partners Fund XV, L.P., and Sequoia Capital U.S. Venture XV Principals Fund, L.P. (collectively, the XV Funds). [continued from Footnote 2] As a result, SC US (TTGP), Ltd. may be deemed to share voting and dispositive power with respect to the shares held by GFVIII and the XV Funds. Each of SC US (TTGP), Ltd., SC U.S. Growth VIII Management, L.P. and SC U.S. Venture XV Management, L.P. disclaims beneficial ownership of the shares held by GFVIII and the XV Funds, as applicable, except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes. /s/ Jung Yeon Son, by power of attorney for SC US (TTGP), Ltd. 2026-08-19 /s/ Jung Yeon Son, by power of attorney for SC US (TTGP), Ltd., the General Partner of SC U.S. Venture XV Management, L.P. 2026-08-19 /s/ Jung Yeon Son, by power of attorney for SC US (TTGP), Ltd., the General Partner of SC U.S. Venture XV Management, L.P., the General Partner of Sequoia Capital U.S. Venture Fund XV, L.P 2026-08-19 /s/ Jung Yeon Son, by power of attorney for SC US (TTGP), Ltd., the General Partner of SC U.S. Venture XV Management, L.P., the General Partner of Sequoia Capital U.S. Venture Partners Fund XV (Q), L.P. 2026-08-19 /s/ Jung Yeon Son, by power of attorney for SC US (TTGP), Ltd., the General Partner of SC U.S. Venture XV Management, L.P., the General Partner of Sequoia Capital U.S. Venture Partners Fund XV, L.P. 2026-08-19 /s/ Jung Yeon Son, by power of attorney for SC US (TTGP), Ltd., the General Partner of SC U.S. Venture XV Management, L.P., the General Partner of Sequoia Capital U.S. Venture XV Principals Fund, L.P. 2026-08-19 /s/ Jung Yeon Son, by power of attorney for SC US (TTGP), Ltd., the General Partner of SC U.S. Growth VIII Management, L.P. 2026-08-19 /s/ Jung Yeon Son, by power of attorney for SC US (TTGP), Ltd., the General Partner of SC U.S. Growth VIII Management, L.P., the General Partner of Sequoia Capital U.S. Growth Fund VIII, L.P. 2026-08-19