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
Aug 21, 2026Aug 22 12:58 AMSean LieChief Technology Officer
Option Exercise
16,293$5.48335,162(D)

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Aug 20, 2026Aug 22 12:58 AMSean LieChief Technology Officer
Conversion
696,798—7,582,992(D)

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Aug 20, 2026Aug 22 12:58 AMSean LieChief Technology Officer
Option Exercise
696,798$7.89351,455(D)

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Aug 20, 2026Aug 22 12:58 AMSean LieChief Technology Officer
Option Exercise
696,798—8,279,790(D)

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Aug 18, 2026Aug 21 12:53 AMSteven VassalloDirector
Conversion
1,912,792—818,559(I)

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Aug 18, 2026Aug 21 12:51 AMFoundation Capital Management Co. VIII, L.L.C.10% Owner
Conversion
1,912,792—818,559(I)

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Aug 18, 2026Aug 21 12:14 AMRobert Patrick Komin Jr.Chief Financial Officer
Conversion
32,500—821,653(D)

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Aug 18, 2026Aug 21 12:10 AMYagnesh PatelChief Accounting Officer
Conversion
6,250—114,588(D)

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Aug 18, 2026Aug 21 12:05 AMDhiraj MallickChief Operating Officer
Conversion
158,889—520,807(D)

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Aug 18, 2026Aug 21 12:04 AMSean LieChief Technology Officer
Conversion
616,706—7,582,992(D)

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Aug 18, 2026Aug 20 1:12 AMAndrew D. FeldmanDirector, CEO, President
Conversion
93,497—13,945,134(D)

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Aug 17, 2026Aug 19 9:43 PMBenchmark Capital Management Co. VIII, L.L.C.10% Owner
Conversion
2,402,352—9,825,193(I)

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Aug 14, 2026Aug 18 10:38 PMSteven VassalloDirector
Conversion
382,557—954,985(I)

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Jun 24, 2026Aug 18 10:38 PMSteven VassalloDirector
Conversion
1,530,235—982,270(I)

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Aug 14, 2026Aug 18 10:37 PMFoundation Capital Management Co. VIII, L.L.C.10% Owner
Conversion
382,557—954,985(I)

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Jun 24, 2026Aug 18 10:37 PMFoundation Capital Management Co. VIII, L.L.C.10% Owner
Conversion
1,530,235—982,270(I)

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Jun 29, 2026Jul 1 9:30 PMBenchmark Capital Management Co. VIII, L.L.C.10% Owner
Conversion
2,157,802—12,227,545(I)

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Jun 30, 2026Jul 1 8:21 PMDhiraj MallickChief Operating Officer
Conversion
10,000—679,696(D)

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Jun 25, 2026Jun 29 8:51 PMDhiraj MallickChief Operating Officer
Conversion
69,445—689,696(D)

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Jun 25, 2026Jun 29 8:48 PMYagnesh PatelChief Accounting Officer
Conversion
10,079—120,838(D)

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