Form 4 Tracker
Cerebras Systems Inc.
CBRS

61 insider filings · Latest: Oct 5, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
Sep 29, 2026Sep 30 10:35 PMRobert Patrick Komin Jr.Chief Financial Officer
Sale
32,500$203.53$6.6M0(D)

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Sep 29, 2026Sep 30 10:34 PMDhiraj MallickChief Operating Officer
Sale
396,000$204.04$80.8M0(D)

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Sep 28, 2026Sep 30 10:33 PMYagnesh PatelChief Accounting Officer
Sale
1,320$204.50$269.9K15,356(D)

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Sep 29, 2026Sep 29 8:25 PMDHIRAJ MALLICK
Proposed Sale
396,000$196.74$77.9M—

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Sep 29, 2026Sep 29 8:24 PMROBERT KOMIN
Proposed Sale
32,500$196.74$6.4M—

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Sep 25, 2026Sep 28 8:05 PMSean LieChief Technology Officer
Sale
120,000$208.97$25.1M309,569(D)

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Sep 25, 2026Sep 25 8:35 PMSEAN LIE
Proposed Sale
120,000$206.41$24.8M—

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Sep 4, 2026Sep 9 12:20 AMSteven VassalloDirector
Sale
50,000$210.30$10.5M171,977(I)

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Sep 4, 2026Sep 9 12:19 AMSean LieChief Technology Officer
Sale
53,460$210.16$11.2M345,569(D)

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Sep 4, 2026Sep 9 12:17 AMAndrew D. FeldmanDirector, CEO, President
Sale
37,441$210.46$7.9M16,853(D)

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Sep 4, 2026Sep 4 8:52 PMVassallo Family Revocable Trust dated 7/15/02
Proposed Sale
50,000$190.44$9.5M—

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Sep 4, 2026Sep 4 8:33 PMANDREW FELDMAN
Proposed Sale
37,441$190.44$7.1M—

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Sep 4, 2026Sep 4 8:26 PMSEAN LIE
Proposed Sale
53,460$190.44$10.2M—

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Aug 21, 2026Aug 25 10:13 PMAndrew D. FeldmanDirector, CEO, President
Sale
237,559$199.27$47.3M16,853(D)

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Aug 21, 2026Aug 22 12:58 AMSean LieChief Technology Officer
Sale
16,293$210.01$3.4M368,926(D)

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Aug 20, 2026Aug 22 12:58 AMSean LieChief Technology Officer
Sale
710,247$207.86$147.6M368,926(D)

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Aug 21, 2026Aug 21 9:23 PMSEAN LIE
Proposed Sale
16,293$209.85$3.4M—

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Aug 21, 2026Aug 21 8:44 PMANDREW FELDMAN
Proposed Sale
237,559$209.85$49.9M—

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Aug 18, 2026Aug 21 12:10 AMYagnesh PatelChief Accounting Officer
Sale
4,574$222.22$1.0M16,676(D)

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Aug 18, 2026Aug 21 12:05 AMDhiraj MallickChief Operating Officer
Sale
38,889$222.22$8.6M120,000(D)

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Stock Options & Derivatives
Txn DateAcceptedInsiderTypeSharesExercise PriceShares OwnedFiling
Jun 25, 2026Jun 29 8:47 PMAndrew D. FeldmanDirector, CEO, President
Conversion
17,990—14,038,631(D)

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Jun 25, 2026Jun 29 8:47 PMSean LieChief Technology Officer
Conversion
10,033—8,199,698(D)

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Jun 11, 2026Jun 12 10:14 PMLior SusanDirector
Conversion
13,466,197—0(I)

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May 15, 2026May 19 9:03 PMBenchmark AI Infrastructure Management Co., L.L.C.10% Owner
Conversion
2,527,646—0(I)

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May 15, 2026May 19 9:03 PMBenchmark AI Infrastructure Management Co., L.L.C.10% Owner
Conversion
2,527,646—2,527,646(I)

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May 15, 2026May 19 9:00 PMBenchmark Capital Management Co. VIII, L.L.C.10% Owner
Conversion
15,075,337—689,990(I)

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May 15, 2026May 19 9:00 PMBenchmark Capital Management Co. VIII, L.L.C.10% Owner
Conversion
15,075,337—0(I)

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May 15, 2026May 19 8:15 PMFoundation Capital Management Co. VIII, L.L.C.10% Owner
Conversion
15,302,343—1,091,411(I)

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May 15, 2026May 19 8:15 PMFoundation Capital Management Co. VIII, L.L.C.10% Owner
Conversion
15,302,343—0(I)

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May 15, 2026May 16 12:06 AMDhiraj MallickChief Operating Officer
Other (J)
1,272,370$6.470(D)

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May 15, 2026May 16 12:06 AMDhiraj MallickChief Operating Officer
Other (J)
2,074,368$6.47105,000(D)

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May 15, 2026May 15 10:50 PMLior SusanDirector, 10% Owner
Conversion
12,372,199—13,466,197(I)

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May 15, 2026May 15 10:50 PMLior SusanDirector, 10% Owner
Conversion
12,372,199—0(I)

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May 15, 2026May 15 10:50 PMLior SusanDirector, 10% Owner
Other (J)
1,093,998—1,093,998(I)

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May 15, 2026May 15 10:50 PMSteven VassalloDirector
Conversion
15,302,343—15,302,343(I)

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May 15, 2026May 15 10:50 PMSteven VassalloDirector
Conversion
15,302,343—0(I)

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May 15, 2026May 15 10:50 PMRobert Patrick Komin Jr.Chief Financial Officer
Other (J)
18,248$5.480(D)

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May 15, 2026May 15 10:50 PMRobert Patrick Komin Jr.Chief Financial Officer
Other (J)
1,047,401$5.4818,248(I)

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May 15, 2026May 15 10:50 PMDONIO ELENA A.Director
Other (J)
33,701—33,701(D)

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May 15, 2026May 15 10:49 PMPaul R. Auvil IIIDirector
Other (J)
203,750—203,750(D)

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