InsiderTrades

Form 4 for CBRS Cerebras Systems Inc.

Accepted 2026-08-21 16:15:09 ET · period of report 2026-08-19 · accession 0001193125-26-361120 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
MI 2026-08-21 16:15 2026-08-19 CBRS Susan Lior Dir J - Other — -855.5K 207.6K -80% —
2026-08-21 16:15 2026-08-19 CBRS Susan Lior Dir J - Other — +46.4K 244.2K +23% —

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Class A Common Stock 2026-08-19 J D 902,235 — 8,295,180 I See footnote — — (F1) Represents a pro-rata, in-kind distribution by the Eclipse Entities (as defined below) to its partners, for no additional consideration (the "Distribution"). (F1) Represents a pro-rata, in-kind distribution by the Eclipse Entities (as defined below) to its partners, for no additional consideration (the "Distribution"). (F2) Following the distribution, consists of (i) 493,021 shares of Class A common stock held by Eclipse Continuity Fund I, L.P. ("Eclipse Continuity Fund"); (ii) 4,033,856 shares of Class A common stock held by Eclipse SPV II, L.P. ("Eclipse SPV II"); (iii) 369,527 shares of Class A common stock held by Eclipse SPV XIII, L.P. ("Eclipse SPV XIII"); and (iv) 3,398,776 shares of Class A common stock held by Eclipse Ventures Fund I, L.P. ("Eclipse Fund," and together with Eclipse Continuity Fund, Eclipse SPV II, and Eclipse SPV XIII, "Eclipse Entities"). The Reporting Person is the sole managing member of the general partner of each of the Eclipse Entities and may be deemed to have voting, investment, and dispositive power with respect to the shares held by such entities.
2 Common Class A Common Stock 2026-08-19 J A 46,422 — 244,206 D — — (F3) The shares were obtained pursuant to a pro-rata, in-kind distribution from the Eclipse Entities, for no additional consideration. (F3) The shares were obtained pursuant to a pro-rata, in-kind distribution from the Eclipse Entities, for no additional consideration.
3 Common Class A Common Stock 2026-08-19 J A 46,780 — 207,571 I See footnote — — (F3) The shares were obtained pursuant to a pro-rata, in-kind distribution from the Eclipse Entities, for no additional consideration. (F3) The shares were obtained pursuant to a pro-rata, in-kind distribution from the Eclipse Entities, for no additional consideration. (F4) The shares are held directly by an estate-planning vehicle which is controlled by the Reporting Person.