Lie Sean
Chief Technology Officer
Sale
Calculated transaction value
$2.85M
13,776 shares @ $206.63
Traded
Sep 25, 2026
Filed
Sep 28, 2026
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Cerebras Systems Inc
CBRS
ManufacturingElectronic Equipment
Transactions reported in official disclosures
Price with disclosed trades
Daily closes, past year · marks sit on transaction dates, sized by value
542 trades
| Reporting person | Filed | Transaction | Transaction value | Source | Actions |
|---|---|---|---|---|---|
| Lie Sean Chief Technology Officer | Sep 28, 2026 3-day lag | Sale Sep 25, 2026 | $2.85M Filed shares x price | SEC Form 4 View filing | |
| Lie Sean Chief Technology Officer | Sep 28, 2026 3-day lag | Sale Sep 25, 2026 | $1.43M Filed shares x price | SEC Form 4 View filing | |
| Lie Sean Chief Technology Officer | Sep 28, 2026 3-day lag | Sale Sep 25, 2026 | $106.07K Filed shares x price | SEC Form 4 View filing | |
| Lie Sean Chief Technology Officer | Sep 28, 2026 3-day lag | Exercise Sep 25, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Lie Sean Chief Technology Officer | Sep 28, 2026 3-day lag | Exercise Sep 25, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Lie Sean Chief Technology Officer | Sep 28, 2026 3-day lag | Sale Sep 25, 2026 | $1.94M Filed shares x price | SEC Form 4 View filing | |
| Lie Sean Chief Technology Officer | Sep 28, 2026 3-day lag | Sale Sep 25, 2026 | $1.21M Filed shares x price | SEC Form 4 View filing | |
| Lie Sean Chief Technology Officer | Sep 28, 2026 3-day lag | Gift Sep 25, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Lie Sean Chief Technology Officer | Sep 28, 2026 3-day lag | Sale Sep 25, 2026 | $6.43M Filed shares x price | SEC Form 4 View filing | |
| Susan Lior Director | Sep 25, 2026 2-day lag | Other Sep 23, 2026 | Not reported Reported range | SEC Form 4 View filing | |
| Susan Lior Director | Sep 25, 2026 2-day lag | Other Sep 23, 2026 | Not reported Reported range | SEC Form 4 View filing | |
| Susan Lior Director | Sep 25, 2026 2-day lag | Other Sep 23, 2026 | Not reported Reported range | SEC Form 4 View filing | |
| Feldman Andrew D. CEO, President | Sep 23, 2026 2-day lag | Other Sep 21, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Vishria Eric Director | Sep 23, 2026 2-day lag | Other Sep 21, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Donald J Trump Executive branch official | Sep 22, 2026 67-day lag | Buy Jul 17, 2026 | $1K - $15K Reported range | OGE 278-T View filing | |
| Susan Lior Director | Sep 17, 2026 2-day lag | Other Sep 15, 2026 | Not reported Reported range | SEC Form 4 View filing | |
| Susan Lior Director | Sep 17, 2026 2-day lag | Other Sep 15, 2026 | Not reported Reported range | SEC Form 4 View filing | |
| Susan Lior Director | Sep 17, 2026 2-day lag | Other Sep 15, 2026 | Not reported Reported range | SEC Form 4 View filing | |
| Vishria Eric Director | Sep 10, 2026 2-day lag | Other Sep 8, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Vassallo Steven Director | Sep 8, 2026 4-day lag | Sale Sep 4, 2026 | $4.58M Filed shares x price | SEC Form 4 View filing | |
| Vassallo Steven Director | Sep 8, 2026 4-day lag | Sale Sep 4, 2026 | $1.5M Filed shares x price | SEC Form 4 View filing | |
| Vassallo Steven Director | Sep 8, 2026 4-day lag | Sale Sep 4, 2026 | $4.43M Filed shares x price | SEC Form 4 View filing | |
| Lie Sean Chief Technology Officer | Sep 8, 2026 4-day lag | Conversion Sep 4, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Lie Sean Chief Technology Officer | Sep 8, 2026 4-day lag | Sale Sep 4, 2026 | $11.24M Filed shares x price | SEC Form 4 View filing | |
| Lie Sean Chief Technology Officer | Sep 8, 2026 4-day lag | Exercise Sep 4, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Lie Sean Chief Technology Officer | Sep 8, 2026 4-day lag | Conversion Sep 4, 2026 | Not reported Reported range | SEC Form 4 View filing | |
| Lie Sean Chief Technology Officer | Sep 8, 2026 4-day lag | Gift Sep 4, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Lie Sean Chief Technology Officer | Sep 8, 2026 4-day lag | Exercise Sep 4, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Feldman Andrew D. CEO, President | Sep 8, 2026 Same-day filing | Other Sep 8, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Feldman Andrew D. CEO, President | Sep 8, 2026 4-day lag | Sale Sep 4, 2026 | $244.87K Filed shares x price | SEC Form 4 View filing |
Lie Sean
Chief Technology Officer
Sale
Calculated transaction value
$1.43M
6,869 shares @ $207.54
Traded
Sep 25, 2026
Filed
Sep 28, 2026
Lie Sean
Chief Technology Officer
Sale
Calculated transaction value
$106.07K
500 shares @ $212.14
Traded
Sep 25, 2026
Filed
Sep 28, 2026
Lie Sean
Chief Technology Officer
Exercise
Calculated transaction value
$0
116,875 shares @ $0
Traded
Sep 25, 2026
Filed
Sep 28, 2026
Lie Sean
Chief Technology Officer
Exercise
Calculated transaction value
$0
120,000 shares @ $0
Traded
Sep 25, 2026
Filed
Sep 28, 2026
Lie Sean
Chief Technology Officer
Sale
Calculated transaction value
$1.94M
9,177 shares @ $211.32
Traded
Sep 25, 2026
Filed
Sep 28, 2026
Lie Sean
Chief Technology Officer
Sale
Calculated transaction value
$1.21M
5,900 shares @ $205.3
Traded
Sep 25, 2026
Filed
Sep 28, 2026
Lie Sean
Chief Technology Officer
Gift
Calculated transaction value
$0
36,000 shares @ $0
Traded
Sep 25, 2026
Filed
Sep 28, 2026
Lie Sean
Chief Technology Officer
Sale
Calculated transaction value
$6.43M
30,565 shares @ $210.45
Traded
Sep 25, 2026
Filed
Sep 28, 2026
Susan Lior
Director
Other
Reported value range
Not reported
451,118 shares
Traded
Sep 23, 2026
Filed
Sep 25, 2026
Susan Lior
Director
Other
Reported value range
Not reported
25,757 shares
Traded
Sep 23, 2026
Filed
Sep 25, 2026
Susan Lior
Director
Other
Reported value range
Not reported
23,735 shares
Traded
Sep 23, 2026
Filed
Sep 25, 2026
Feldman Andrew D.
CEO, President
Other
Calculated transaction value
$0
120 shares @ $0
Traded
Sep 21, 2026
Filed
Sep 23, 2026
Vishria Eric
Director
Other
Calculated transaction value
$0
44,507 shares @ $0
Traded
Sep 21, 2026
Filed
Sep 23, 2026
Donald J Trump
Executive branch official
Buy
Reported value range
$1K - $15K
Not reported
Traded
Jul 17, 2026
Filed
Sep 22, 2026
Susan Lior
Director
Other
Reported value range
Not reported
24,463 shares
Traded
Sep 15, 2026
Filed
Sep 17, 2026
Susan Lior
Director
Other
Reported value range
Not reported
23,734 shares
Traded
Sep 15, 2026
Filed
Sep 17, 2026
Susan Lior
Director
Other
Reported value range
Not reported
451,115 shares
Traded
Sep 15, 2026
Filed
Sep 17, 2026
Vishria Eric
Director
Other
Calculated transaction value
$0
44,507 shares @ $0
Traded
Sep 8, 2026
Filed
Sep 10, 2026
Vassallo Steven
Director
Sale
Calculated transaction value
$4.58M
21,773 shares @ $210.37
Traded
Sep 4, 2026
Filed
Sep 8, 2026
Vassallo Steven
Director
Sale
Calculated transaction value
$1.5M
7,110 shares @ $211.56
Traded
Sep 4, 2026
Filed
Sep 8, 2026
Vassallo Steven
Director
Sale
Calculated transaction value
$4.43M
21,117 shares @ $209.81
Traded
Sep 4, 2026
Filed
Sep 8, 2026
Lie Sean
Chief Technology Officer
Conversion
Calculated transaction value
$0
46,141 shares @ $0
Traded
Sep 4, 2026
Filed
Sep 8, 2026
Lie Sean
Chief Technology Officer
Sale
Calculated transaction value
$11.24M
53,460 shares @ $210.16
Traded
Sep 4, 2026
Filed
Sep 8, 2026
Lie Sean
Chief Technology Officer
Exercise
Calculated transaction value
$0
46,141 shares @ $0
Traded
Sep 4, 2026
Filed
Sep 8, 2026
Lie Sean
Chief Technology Officer
Conversion
Reported value range
Not reported
46,141 shares
Traded
Sep 4, 2026
Filed
Sep 8, 2026
Lie Sean
Chief Technology Officer
Gift
Calculated transaction value
$0
16,038 shares @ $0
Traded
Sep 4, 2026
Filed
Sep 8, 2026
Lie Sean
Chief Technology Officer
Exercise
Calculated transaction value
$0
46,141 shares @ $0
Traded
Sep 4, 2026
Filed
Sep 8, 2026
Feldman Andrew D.
CEO, President
Other
Calculated transaction value
$0
120 shares @ $0
Traded
Sep 8, 2026
Filed
Sep 8, 2026
Feldman Andrew D.
CEO, President
Sale
Calculated transaction value
$244.87K
1,200 shares @ $204.06
Traded
Sep 4, 2026
Filed
Sep 8, 2026