Komin Robert Patrick Jr. 4
4 · Cerebras Systems Inc. · Filed May 15, 2026
Research Summary
AI-generated summary of this filing
Cerebras (CBRS) CFO Robert Komin Transfers/Reclassifies Shares
What Happened
- Robert Patrick Komin Jr., Chief Financial Officer of Cerebras Systems, reported a series of "other acquisition or disposition" transactions on 2026-05-15 affecting a total of 1,047,401 shares (854,153 + 175,000 + 18,248). The filing shows matching dispositions and acquisitions, many described as derivative adjustments; no per-share prices or dollar values are reported (N/A). These entries appear to reflect internal reclassifications/adjustments of awards and option-related interests rather than open-market purchases or sales.
Key Details
- Transaction date: 2026-05-15; transaction code: "J" (other acquisition or disposition).
- Specific line items reported: disposals of 854,153; 175,000; 18,248 shares and acquisitions of the same amounts, with the 854,153, 175,000 and 18,248 acquisitions noted as derivative-related.
- Prices/values: N/A in the filing — no cash amounts disclosed.
- Shares owned after transaction: not specified in the provided data.
- Footnotes of note:
- F1: Prior to the IPO, Class A shares (including RSUs and option-based shares) were reclassified into Class B shares; each Class B is convertible into Class A at holder's option.
- F2: Related stock option vests per its terms and will be fully vested on March 11, 2028.
- Timeliness: Filing date and report period both 2026-05-15, indicating a same-day report; no late filing flag shown.
Context
- These J-code entries typically denote non-market actions (reclassifications, internal transfers, or derivative/award adjustments). They do not reflect an open-market buy or sell that signals a public trade. There is no indication of a cash exercise, immediate sale, or 10b5-1 plan in the provided details. For retail investors, such administrative/derivative adjustments generally carry less signal value than clear purchases or sales on the open market.
Insider Transaction Report
Form 4
Komin Robert Patrick Jr.
Chief Financial Officer
Transactions
- Other
Class A Common Stock
[F1]2026-05-15−854,153→ 0 total - Other
Class A Common Stock
[F1]2026-05-15−175,000→ 0 total(indirect: By GRAT) - Other
Class B Common Stock
[F1]2026-05-15+854,153→ 854,153 total→ Class A Common Stock (854,153 underlying) - Other
Class B Common Stock
[F1]2026-05-15+175,000→ 175,000 total(indirect: By GRAT)→ Class A Common Stock (175,000 underlying) - Other
Stock Option
[F1][F2]2026-05-15−18,248→ 0 totalExercise: $5.48Exp: 2034-03-12→ Class A Common Stock (18,248 underlying) - Other
Stock Option
[F1][F2]2026-05-15+18,248→ 18,248 totalExercise: $5.48Exp: 2034-03-12→ Class B Common Stock (18,248 underlying)
Footnotes (2)
- [F1]Immediately prior to the completion of the Issuer's initial public offering, each share of Class A common stock beneficially owned by the Reporting Person, including shares of Class A common stock underlying restricted stock unit ("RSU") and stock options awards, were reclassified into one share of Class B common stock in an exempt transaction pursuant to Rule 16b-7. Each share of Class B common stock is convertible at any time at the option of the holder into one share of Class A common stock.
- [F2]The stock option vests according to its terms and will be fully vested on March 11, 2028.
Signature
/s/ Shirley Li, Attorney-in-Fact|2026-05-15