X0609 4 2026-06-24 0002021728 Cerebras Systems Inc. CBRS 0001645076 Foundation Capital Management Co. VIII, L.L.C. false C/O FOUNDATION CAPITAL 550 HIGH STREET, 3RD FLOOR PALO ALTO CA 94301 false false true false 0001645077 Foundation Capital VIII, L.P. false C/O FOUNDATION CAPITAL 550 HIGH STREET, 3RD FLOOR PALO ALTO CA 94301 0 0 1 0 0001645178 Foundation Capital VIII Principals Fund, L.L.C. false C/O FOUNDATION CAPITAL 550 HIGH STREET, 3RD FLOOR PALO ALTO CA 94301 0 0 1 0 0001804257 Foundation Capital Management Co. LF II, L.L.C. false C/O FOUNDATION CAPITAL 550 HIGH STREET, 3RD FLOOR PALO ALTO CA 94301 0 0 1 0 0001804258 Foundation Capital Leadership Fund II, L.P. false C/O FOUNDATION CAPITAL 550 HIGH STREET, 3RD FLOOR PALO ALTO CA 94301 0 0 1 0 0 Class A Common Stock 2026-06-24 4 C 0 1391131 A 1391131 I By Foundation Capital VIII, L.P. Class A Common Stock 2026-06-24 4 C 0 29963 A 29963 I By Foundation Capital VIII Principals Fund, LLC Class A Common Stock 2026-06-24 4 C 0 109141 A 109141 I By Foundation Capital Leadership Fund II, L.P. Class A Common Stock 2026-08-14 4 C 0 347782 A 1738913 I By Foundation Capital VIII, L.P. Class A Common Stock 2026-08-14 4 C 0 7490 A 37453 I By Foundation Capital VIII Principals Fund, L.L.C. Class A Common Stock 2026-08-14 4 C 0 27285 A 136426 I By Foundation Capital Leadership Fund II, L.P. Class A Common Stock 2026-08-14 4 J 0 1738913 0 D 0 I By Foundation Capital VIII, L.P. Class A Common Stock 2026-08-14 4 J 0 37453 0 D 0 I By Foundation Capital VIII Principals Fund, L.L.C. Class A Common Stock 2026-08-14 4 J 0 136426 0 D 0 I By Foundation Capital Leadership Fund II, L.P. Class A Common Stock 2026-08-14 4 J 0 449885 0 A 449885 I By Foundation Capital Management Co. VIII, L.L.C. Class A Common Stock 2026-08-14 4 J 0 449885 0 D 0 I By Foundation Capital Management Co. VIII, L.L.C. Class A Common Stock 2026-08-14 4 J 0 1368 0 A 1368 I By Foundation Capital Management Co. LF II, L.L.C. Class B Common Stock 2026-06-24 4 C 0 1391131 D Class A Common Stock 1391131 12520174 I By Foundation Capital VIII, L.P. Class B Common Stock 2026-06-24 4 C 0 29963 D Class A Common Stock 29963 269664 I By Foundation Capital VIII Principals Fund, LLC Class B Common Stock 2026-06-24 4 C 0 109141 D Class A Common Stock 109141 982270 I By Foundation Capital Leadership Fund II, L.P. Class B Common Stock 2026-08-14 4 C 0 347782 D Class A Common Stock 347782 12172392 I By Foundation Capital VIII, L.P. Class B Common Stock 2026-08-14 4 C 0 7490 D Class A Common Stock 7490 262174 I By Foundation Capital VIII Principals Fund, LLC Class B Common Stock 2026-08-14 4 C 0 27285 D Class A Common Stock 27285 954985 I By Foundation Capital Leadership Fund II, L.P. Each share of Class B Common Stock was converted into one share of Class A Common Stock for no additional consideration. These securities are held by Foundation Capital VIII, L.P. ("FC8"). Foundation Capital Management Co. VIII, L.L.C. ("FCM8") serves as the sole general partner of FC8 and, as such, FCM8 possesses voting and dispositive power over the shares held by FC8, and may be deemed to have indirect beneficial ownership of the shares held by FC8. FCM8 disclaims beneficial ownership of such securities except to the extent of its pecuniary interest therein. These securities are held by Foundation Capital VIII Principals Fund, L.L.C. ("FC8P"). FCM8 serves as the sole manager of FC8P and, as such, FCM8 possesses voting and dispositive power over the shares held by FC8P, and may be deemed to have indirect beneficial ownership of the shares held by FC8P. FCM8 disclaims beneficial ownership of such securities except to the extent of its pecuniary interest therein. These securities are held by Foundation Capital Leadership Fund II, L.P. ("FCLF2"). Foundation Capital Management Co,. LF II, L.L.C. ("FCMLF2") serves as the sole general partner of FCLF2 and, as such, FCMLF2 possesses voting and dispositive power over the shares held by FCLF2, and may be deemed to have indirect beneficial ownership of the shares held by FCLF2. FCMLF2 disclaims beneficial ownership of such securities except to the extent of its pecuniary interest therein. Represents a pro rata, in-kind distribution, and not a purchase or sale of securities, by FC8 to its general partner and limited partners without additional consideration. Represents a pro rata, in-kind distribution, and not a purchase or sale of securities, by FC8P to its general partner and limited partners without additional consideration. Represents a pro rata, in-kind distribution, and not a purchase or sale of securities, by FCLF2 to its general partner and limited partners without additional consideration. Represents receipt of shares in the distributions in kind described in footnotes (5) and (6). These securities are held by FCM8. FCM8 disclaims beneficial ownership of such securities except to the extent of its pecuniary interest therein. Represents a pro rata, in-kind distribution, and not a purchase or sale of securities, by FCM8 to its members without additional consideration. Represents receipt of shares in the distribution in kind described in footnote (7). These securities are held by FCMLF2. FCMLF2 disclaims beneficial ownership of such securities except to the extent of its pecuniary interest therein. Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder and does not expire. Foundation Capital Management Co. VIII, L.L.C., By: /s/ Ashu Garg, Manager 2026-08-18 Foundation Capital VIII, L.P., By: Foundation Capital Management Co. VIII, L.L.C., its General Partner, By: /s/ Ashu Garg, Manager 2026-08-18 Foundation Capital VIII Principals Fund, L.L.C., By: Foundation Capital Management Co. VIII, L.L.C., its Manager, By: /s/ Ashu Garg, Manager 2026-08-18 Foundation Capital Management Co. LF II, L.L.C., By: /s/ Ashu Garg, Manager 2026-08-18 Foundation Capital Leadership Fund II, L.P., By: Foundation Capital Management Co. LF II, L.L.C., its General Partner, By: /s/ Ashu Garg, Manager 2026-08-18