Company · CIK 0002021728 · SIC 3674 — Semiconductors & Related Devices · Nasdaq

Cerebras Systems Inc. · CBRS

Insider activity reported against this company. All insider holders · On EDGAR ↗

Period1M 3M 6M 1Y 2Y All datashares as filed — not split-adjusted

Open-market buys & salesbuys $0 · 0sales $29.6M · 3net −$29.6M

Reported at this company — common stock

Trade	Reported (ET)	Insider	Shares	Avg price	Total	Owned after	Δ stake	Flags
Sep 23, 2026 JForm 4 →	Sep 25, 4:34 pm EDT	Lior SusanDirector	500,610	—	—	309,603	—
Sep 21, 2026 JForm 4 →	Sep 23, 5:16 pm EDT	Andrew D. FeldmanCEO, President, Director	120	—	—	926	—
Sep 21, 2026 JForm 4 →	Sep 23, 5:10 pm EDT	Eric VishriaDirector	44,507	—	—	275,854	—	10b5-1
Sep 15, 2026 JForm 4 →	Sep 17, 4:16 pm EDT	Lior SusanDirector	499,312	—	—	278,775	—
Sep 8, 2026 JForm 4 →	Sep 10, 5:18 pm EDT	Eric VishriaDirector	44,507	—	—	231,347	—	10b5-1
Sep 4, 2026 SForm 4 →	Sep 8, 8:20 pm EDT	Steven VassalloDirector	50,000	$210.30	$10,515,135	171,977	−22.5%
Sep 4, 2026 SForm 4 →	Sep 8, 8:19 pm EDT	Sean LieChief Technology Officer	53,460	$210.16	$11,235,154	345,569	−13.4%
Sep 4, 2026 CGForm 4 →	Sep 8, 8:19 pm EDT	Sean LieChief Technology Officer	62,179	—	—	399,029	—
Sep 4, 2026 SForm 4 →	Sep 8, 8:17 pm EDT	Andrew D. FeldmanCEO, President, Director	37,441	$210.46	$7,879,687	16,853	−69.0%
Sep 4, 2026 CJForm 4 →	Sep 8, 8:17 pm EDT	Andrew D. FeldmanCEO, President, Director	37,561	—	—	806	—
Sep 2, 2026 JForm 4 →	Sep 4, 4:05 pm EDT	Lior SusanDirector	996,161	—	—	255,041	—

Trade	Reported (ET)	Insider	Shares	Avg price	Total	Owned after	Δ stake	Flags
Sep 4, 2026 CMForm 4 →	Sep 8, 8:19 pm EDT	Sean LieChief Technology Officer	138,423	—	—	7,582,992	—
Sep 4, 2026 CMForm 4 →	Sep 8, 8:17 pm EDT	Andrew D. FeldmanCEO, President, Director	112,323	—	—	13,945,134	—