Robert Patrick Komin Jr.
Robert Patrick Komin Jr.: Chief Financial Officer at Cerebras Systems. What Robert Patrick Komin Jr. holds in an AI or semiconductor company tracked on Silicon Floor, from their SEC filings, broken down: the shares held and how, then any restricted shares, options or other rights declared.
Cerebras Systems (CBRS)
Robert Patrick Komin Jr. holds 996,653 Cerebras Systems shares (0.42% of the company), worth about $180.3M at the last price, according to the Form 4 of Sep 29, 2026.
- Shares held: 821,653 (0.35%), $148.6M — Held in their own name: 821,653 Class B.
- Shares held: 175,000 (0.07%), $31.7M — Held through trusts (By GRAT): 175,000 Class B.
- Options: 18,248 (0.01%), $3.3M — The right to buy 18,248 shares at $5.48 each, until 2034. Not bought yet.
Declarations
- Cerebras Systems (CBRS) — Form 4 of Sep 29, 2026 (Chief Financial Officer): open-market sale of 1,830 at $211.79; open-market sale of 2,771 at $211.03; 0 shares after 0001628280-26-064044
- Cerebras Systems (CBRS) — Form 4 of Aug 18, 2026 (Chief Financial Officer): conversion of 32,500; conversion of 32,500; 1.0M shares after 0001628280-26-058316
- Cerebras Systems (CBRS) — Form 4 of May 15, 2026 (Chief Financial Officer): other of 854,153; other of 175,000; 1.0M shares after 0001628280-26-035743
- Cerebras Systems (CBRS) — Form 3 of May 13, 2026 (Chief Financial Officer); 1.0M shares after 0001628280-26-034698
Sources: SEC Schedules 13D and 13G (stakes above 5%, which count everything a person votes or can acquire within 60 days) and Forms 3, 4 and 5 (the shares a director, officer or 10% owner holds, filed within two business days of each trade). Values at the last price.