{"transactions":[{"id":772591,"issuer":{"id":3072,"kind":"organization","name":"Cerebras Systems Inc.","symbol":"CBRS"},"owners":[{"id":19577,"kind":"organization","name":"Benchmark AI Infrastructure Management Co., L.L.C.","position":1,"cik":"0002105288","reported_name":"Benchmark AI Infrastructure Management Co., L.L.C.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":19578,"kind":"organization","name":"Benchmark AI Infrastructure Fund, L.P.","position":2,"cik":"0002105287","reported_name":"Benchmark AI Infrastructure Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":19579,"kind":"organization","name":"Benchmark AI Infrastructure Fund B, L.P.","position":3,"cik":"0002105283","reported_name":"Benchmark AI Infrastructure Fund B, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class B Common Stock","published_at":"2026-05-19T21:03:06.000Z","date":"2026-05-15","kind":"exercise","planned":false,"acquired":true,"shares":2527646,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock will also be convertible at any time at the option of the Reporting Person into one share of Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock will also be convertible at any time at the option of the Reporting Person into one share of Class A Common Stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock will also be convertible at any time at the option of the Reporting Person into one share of Class A Common Stock."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"The shares are held by Benchmark AI Infrastructure Fund, L.P. (\"AI Infrastructure\"), as nominee for itself and Benchmark AI Infrastructure Fund B, L.P. (\"AI Infrastructure B\"). Benchmark AI Infrastructure Management Co., L.L.C. (\"AI Infrastructure MC\"), the general partner of each of AI Infrastructure and AI Infrastructure B, may be deemed to have sole voting and dispositive power over such shares. Each entity disclaims the existence of a \"group\" and disclaims beneficial ownership of the securities, except to the extent of such entity's pecuniary interest in such securities."}],"balance_after":2527646,"derivative":{"underlying":"Class A Common Stock","underlying_shares":2527646},"source":{"system":"sec-edgar","filing":"0001104659-26-063917","document":"tm2614958-2_4seq1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/2021728/000110465926063917/tm2614958-2_4seq1.xml","form_type":"4"}},{"id":772590,"issuer":{"id":3072,"kind":"organization","name":"Cerebras Systems Inc.","symbol":"CBRS"},"owners":[{"id":19577,"kind":"organization","name":"Benchmark AI Infrastructure Management Co., L.L.C.","position":1,"cik":"0002105288","reported_name":"Benchmark AI Infrastructure Management Co., L.L.C.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":19578,"kind":"organization","name":"Benchmark AI Infrastructure Fund, L.P.","position":2,"cik":"0002105287","reported_name":"Benchmark AI Infrastructure Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":19579,"kind":"organization","name":"Benchmark AI Infrastructure Fund B, L.P.","position":3,"cik":"0002105283","reported_name":"Benchmark AI Infrastructure Fund B, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series H Preferred Stock","published_at":"2026-05-19T21:03:06.000Z","date":"2026-05-15","kind":"exercise","planned":false,"acquired":false,"shares":2527646,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Series H Preferred Stock automatically converted into one share of Class B Common Stock upon completion of the Issuer's initial public offering pursuant to its terms and has no expiration date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each share of Series H Preferred Stock automatically converted into one share of Class B Common Stock upon completion of the Issuer's initial public offering pursuant to its terms and has no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each share of Series H Preferred Stock automatically converted into one share of Class B Common Stock upon completion of the Issuer's initial public offering pursuant to its terms and has no expiration date."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"The shares are held by Benchmark AI Infrastructure Fund, L.P. (\"AI Infrastructure\"), as nominee for itself and Benchmark AI Infrastructure Fund B, L.P. (\"AI Infrastructure B\"). Benchmark AI Infrastructure Management Co., L.L.C. (\"AI Infrastructure MC\"), the general partner of each of AI Infrastructure and AI Infrastructure B, may be deemed to have sole voting and dispositive power over such shares. Each entity disclaims the existence of a \"group\" and disclaims beneficial ownership of the securities, except to the extent of such entity's pecuniary interest in such securities."}],"balance_after":0,"derivative":{"underlying":"Class B Common Stock","underlying_shares":2527646},"source":{"system":"sec-edgar","filing":"0001104659-26-063917","document":"tm2614958-2_4seq1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2021728/000110465926063917/tm2614958-2_4seq1.xml","form_type":"4"}}]}