Cerebras Systems Inc. (CBRS) director Susan Lior reported a 1,198,489-share disposition by the Eclipse Entities and two acquisitions on September 30, 2026. The Eclipse Entities distributed those Class A common shares pro rata, in kind, to their partners for no additional consideration. Lior obtained 68,428 shares directly through the distribution, bringing her reported direct holdings to 420,355 shares. An estate-planning vehicle controlled by Lior obtained 63,056 shares through the distribution.
Cerebras Systems Inc. (CBRS) Chief Financial Officer Robert Patrick Komin Jr. reported direct sales of 32,500 Class A common shares on September 29, 2026, under a Rule 10b5-1 trading plan adopted June 30, 2026. The 16 sale entries include 11,200 shares at a reported weighted-average price of $201.22 per share and 1,830 shares at a reported weighted-average price of $211.79; footnotes give the execution-price range for each weighted average.
Cerebras Systems Inc. (CBRS) Chief Operating Officer Dhiraj Mallick sold 396,000 Class A common shares on September 29, 2026, in 19 reported transactions, at reported weighted-average prices ranging from $194.91 to $212.93 per share. The sales were made under a Rule 10b5-1 trading plan adopted June 30, 2026. On the same date, he exercised options covering 276,000 Class B shares at $0.98 per share and converted 276,000 Class B shares into 276,000 Class A shares. His reported stock option position following the exercise was 91,370 shares.
Cerebras Systems Inc. (CBRS) Chief Accounting Officer Yagnesh Patel sold 1,320 shares of Class A Common Stock at $204.50 per share on September 28, 2026. The sale was made under a Rule 10b5-1 trading plan adopted on June 29, 2026. Patel directly held 15,356 shares after the sale.
Cerebras Systems Inc. (CBRS) officer Dhiraj Mallick reported a proposed sale of 396,000 common shares, with an aggregate market value of $77,909,040. September 29, 2026, is listed as the approximate sale date, with Morgan Stanley Smith Barney LLC and NASDAQ named in the securities information. The shares listed for sale include 276,000 from stock option exercises and 120,000 from performance stock units. During the prior three months, Mallick sold 38,889 common shares on August 18, 2026, with reported proceeds of $8,642,077.14.
Cerebras Systems Inc. (CBRS) is the issuer for Officer Robert Komin’s notice of a proposed sale of 32,500 common shares, with an aggregate market value of $6,394,050. The notice names Morgan Stanley Smith Barney LLC as broker and gives September 29, 2026, as the approximate sale date. The shares are described as previously exercised stock options acquired from the issuer for cash on August 27, 2024.
Cerebras Systems Inc. (CBRS) Chief Technology Officer Sean Lie reported exercising stock options on September 25, 2026, covering 116,875 Class B shares at $5.48 per share and 3,125 at $5.02. He converted 120,000 Class B shares into 120,000 Class A shares, transferred 36,000 Class A shares to a charitable organization's donor-advised fund, and sold 120,000 Class A shares in nine transactions. Reported sale prices are weighted averages for each transaction, including $212.14 for 500 shares and $204.50 for 2,200 shares. The sales were made under a Rule 10b5-1 trading plan adopted May 20, 2026.
Cerebras Systems Inc. (CBRS) Officer Sean Lie reported a proposed sale of 120,000 common shares with an aggregate market value of $24,769,200.00. The notice lists September 25, 2026, as the sale date and states that the shares were acquired from the issuer through exercise of stock options for cash. Common shares outstanding were 112,247,109 as of September 25, 2026.
Cerebras Systems Inc. director Susan Lior reported transactions dated September 23, 2026, including a pro-rata, in-kind distribution of 451,118 Class A common shares by the Eclipse Entities to their partners for no additional consideration. She also reported in-kind acquisitions from the Eclipse Entities of 25,757 shares directly and 23,735 shares held by an estate-planning vehicle she controls, also for no additional consideration. Her direct holdings after the 25,757-share transaction were 351,927 shares.
Cerebras Systems Inc. (CBRS) CEO and President Andrew D. Feldman reported that the Feldman Bravo Family Trust acquired 120 shares of Class A Common Stock on September 21, 2026, through a pro-rata, in-kind distribution for no additional consideration. The trust held 926 shares following the transaction. Feldman also reported direct ownership of 16,853 shares. No Rule 10b5-1 plan is reported.