Nasdaq · CIK 0002021728
CBRS Cerebras Systems Inc.
Insider trading from SEC Form 4. Last filing 5 d ago. Close $164.17 on Oct 9, 2026, 0% from the 52-week low and -47% from the high.
Last 90 days
Net insider value
-$142M
more sold than bought
Buys
0
$0 by 0 insiders
Sells
7
$142M by 6 insiders
Insiders on file
8
with a Form 4 at this company
Price and insider trades, last year
CBRSOct 9, 2026 · close 164.17
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
Open-market buys and sells at Cerebras Systems Inc., scored.
| Score | Insider | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 23Weak | Yagnesh Patel Chief Accounting Officer sell | $270k 1,320 shares | -8% | - | |
| 45Moderate | Dhiraj Mallick Chief Operating Officer sell | $81M 396,000 shares | -100% | - | |
| 62Notable | Robert Patrick Komin Jr. Chief Financial Officer sell | $6.6M 32,500 shares | -100% | - | |
| 30Weak | Sean Lie Chief Technology Officer sell | $25M 120,000 shares | -28% | - | |
| 50Moderate | Andrew D. Feldman CEO, President sell | $7.9M 37,441 shares | -69% | - | |
| 25Weak | Sean Lie Chief Technology Officer sell | $11M 53,460 shares | -13% | - | |
| 60Notable | Steven Vassallo director sell | $11M 50,000 shares | -23% | - |
Transactions
The last 100 rows filed, every code.
| Date | Insider | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Oct 5, 2026 | Eric Vishria director | JOther Class A Common Stockindirect: See Footnote10b5-1 | +59,126 | $0.00 | $0 | 334,980 | 5 d ago |
| Oct 5, 2026 | Andrew D. Feldman CEO, President | JOther Class A Common Stockindirect: By Feldman Bravo Family Trust | +159 | $0.00 | $0 | 1,085 | 6 d ago |
| Sep 30, 2026 | Lior Susan director | JOther Class A Common Stockindirect: See footnote | -1,198,489 | - | - | 5,292,222 | 10 d ago |
| Sep 30, 2026 | Lior Susan director | JOther Class A Common Stock | +68,428 | - | - | 420,355 | 10 d ago |
| Sep 30, 2026 | Lior Susan director | JOther Class A Common Stockindirect: See footnote | +63,056 | - | - | 372,659 | 10 d ago |
| Sep 29, 2026 | Robert Patrick Komin Jr. Chief Financial Officer | SOpen-market sale Class A Common Stock10b5-1 | -1,830 | $211.79 | $388k | 30,670 | 12 d ago |
| Sep 29, 2026 | Dhiraj Mallick Chief Operating Officer | CConversion Class A Common Stock10b5-1 | +276,000 | $0.00 | $0 | 396,000 | 12 d ago |
| Sep 28, 2026 | Yagnesh Patel Chief Accounting Officer | SOpen-market sale Class A Common Stock10b5-1 | -1,320 | $204.50 | $270k | 15,356 | 12 d ago |
| Sep 29, 2026 | Dhiraj Mallick Chief Operating Officer | SOpen-market sale Class A Common Stock10b5-1 | -598 | $212.93 | $127k | 395,402 | 12 d ago |
| Sep 29, 2026 | Robert Patrick Komin Jr. Chief Financial Officer | SOpen-market sale Class A Common Stock10b5-1 | -2,771 | $211.03 | $585k | 27,899 | 12 d ago |
| Sep 29, 2026 | Robert Patrick Komin Jr. Chief Financial Officer | SOpen-market sale Class A Common Stock10b5-1 | -2,802 | $210.02 | $588k | 25,097 | 12 d ago |
| Sep 29, 2026 | Dhiraj Mallick Chief Operating Officer | SOpen-market sale Class A Common Stock10b5-1 | -18,274 | $212.20 | $3.9M | 377,128 | 12 d ago |
| Sep 29, 2026 | Robert Patrick Komin Jr. Chief Financial Officer | SOpen-market sale Class A Common Stock10b5-1 | -2,197 | $208.98 | $459k | 22,900 | 12 d ago |
| Sep 29, 2026 | Dhiraj Mallick Chief Operating Officer | SOpen-market sale Class A Common Stock10b5-1 | -41,391 | $211.29 | $8.7M | 335,737 | 12 d ago |
| Sep 29, 2026 | Dhiraj Mallick Chief Operating Officer | SOpen-market sale Class A Common Stock10b5-1 | -46,427 | $210.27 | $9.8M | 289,310 | 12 d ago |
| Sep 29, 2026 | Robert Patrick Komin Jr. Chief Financial Officer | SOpen-market sale Class A Common Stock10b5-1 | -700 | $207.83 | $145k | 22,200 | 12 d ago |
| Sep 29, 2026 | Robert Patrick Komin Jr. Chief Financial Officer | SOpen-market sale Class A Common Stock10b5-1 | -800 | $206.68 | $165k | 21,400 | 12 d ago |
| Sep 29, 2026 | Dhiraj Mallick Chief Operating Officer | SOpen-market sale Class A Common Stock10b5-1 | -41,278 | $209.33 | $8.6M | 248,032 | 12 d ago |
| Sep 29, 2026 | Robert Patrick Komin Jr. Chief Financial Officer | SOpen-market sale Class A Common Stock10b5-1 | -600 | $205.47 | $123k | 20,800 | 12 d ago |
| Sep 29, 2026 | Dhiraj Mallick Chief Operating Officer | SOpen-market sale Class A Common Stock10b5-1 | -20,714 | $208.38 | $4.3M | 227,318 | 12 d ago |
| Sep 29, 2026 | Robert Patrick Komin Jr. Chief Financial Officer | SOpen-market sale Class A Common Stock10b5-1 | -1,600 | $204.26 | $327k | 19,200 | 12 d ago |
| Sep 29, 2026 | Dhiraj Mallick Chief Operating Officer | SOpen-market sale Class A Common Stock10b5-1 | -9,652 | $207.06 | $2.0M | 217,666 | 12 d ago |
| Sep 29, 2026 | Robert Patrick Komin Jr. Chief Financial Officer | SOpen-market sale Class A Common Stock10b5-1 | -800 | $203.48 | $163k | 18,400 | 12 d ago |
| Sep 29, 2026 | Dhiraj Mallick Chief Operating Officer | SOpen-market sale Class A Common Stock10b5-1 | -9,047 | $206.13 | $1.9M | 208,619 | 12 d ago |
| Sep 29, 2026 | Robert Patrick Komin Jr. Chief Financial Officer | SOpen-market sale Class A Common Stock10b5-1 | -400 | $201.96 | $81k | 18,000 | 12 d ago |
| Sep 29, 2026 | Dhiraj Mallick Chief Operating Officer | SOpen-market sale Class A Common Stock10b5-1 | -8,729 | $205.17 | $1.8M | 199,890 | 12 d ago |
| Sep 29, 2026 | Dhiraj Mallick Chief Operating Officer | SOpen-market sale Class A Common Stock10b5-1 | -27,492 | $204.17 | $5.6M | 172,398 | 12 d ago |
| Sep 29, 2026 | Robert Patrick Komin Jr. Chief Financial Officer | SOpen-market sale Class A Common Stock10b5-1 | -11,200 | $201.22 | $2.3M | 6,800 | 12 d ago |
| Sep 29, 2026 | Dhiraj Mallick Chief Operating Officer | SOpen-market sale Class A Common Stock10b5-1 | -9,682 | $203.37 | $2.0M | 162,716 | 12 d ago |
| Sep 29, 2026 | Robert Patrick Komin Jr. Chief Financial Officer | SOpen-market sale Class A Common Stock10b5-1 | -1,130 | $199.80 | $226k | 5,670 | 12 d ago |
| Sep 29, 2026 | Dhiraj Mallick Chief Operating Officer | SOpen-market sale Class A Common Stock10b5-1 | -5,637 | $201.91 | $1.1M | 157,079 | 12 d ago |
| Sep 29, 2026 | Robert Patrick Komin Jr. Chief Financial Officer | SOpen-market sale Class A Common Stock10b5-1 | -870 | $198.70 | $173k | 4,800 | 12 d ago |
| Sep 29, 2026 | Dhiraj Mallick Chief Operating Officer | SOpen-market sale Class A Common Stock10b5-1 | -22,915 | $200.96 | $4.6M | 134,164 | 12 d ago |
| Sep 29, 2026 | Robert Patrick Komin Jr. Chief Financial Officer | SOpen-market sale Class A Common Stock10b5-1 | -685 | $197.48 | $135k | 4,115 | 12 d ago |
| Sep 29, 2026 | Dhiraj Mallick Chief Operating Officer | SOpen-market sale Class A Common Stock10b5-1 | -17,848 | $199.89 | $3.6M | 116,316 | 12 d ago |
| Sep 29, 2026 | Robert Patrick Komin Jr. Chief Financial Officer | SOpen-market sale Class A Common Stock10b5-1 | -1,115 | $195.61 | $218k | 3,000 | 12 d ago |
| Sep 29, 2026 | Dhiraj Mallick Chief Operating Officer | SOpen-market sale Class A Common Stock10b5-1 | -17,000 | $198.96 | $3.4M | 99,316 | 12 d ago |
| Sep 29, 2026 | Robert Patrick Komin Jr. Chief Financial Officer | SOpen-market sale Class A Common Stock10b5-1 | -3,000 | $194.92 | $585k | 0 | 12 d ago |
| Sep 29, 2026 | Dhiraj Mallick Chief Operating Officer | SOpen-market sale Class A Common Stock10b5-1 | -5,170 | $197.85 | $1.0M | 94,146 | 12 d ago |
| Sep 29, 2026 | Dhiraj Mallick Chief Operating Officer | SOpen-market sale Class A Common Stock10b5-1 | -6,613 | $197.05 | $1.3M | 87,533 | 12 d ago |
| Sep 29, 2026 | Dhiraj Mallick Chief Operating Officer | SOpen-market sale Class A Common Stock10b5-1 | -18,703 | $195.56 | $3.7M | 68,830 | 12 d ago |
| Sep 29, 2026 | Dhiraj Mallick Chief Operating Officer | SOpen-market sale Class A Common Stock10b5-1 | -68,830 | $194.91 | $13M | 0 | 12 d ago |
| Sep 29, 2026 | Dhiraj Mallick Chief Operating Officer | MOption exercise Stock Optionderivative10b5-1 | -276,000 | $0.00 | $0 | 91,370 | 12 d ago |
| Sep 29, 2026 | Dhiraj Mallick Chief Operating Officer | MOption exercise Class B Common Stockderivative10b5-1 | +276,000 | $0.00 | $0 | 796,807 | 12 d ago |
| Sep 29, 2026 | Dhiraj Mallick Chief Operating Officer | CConversion Class B Common Stockderivative10b5-1 | -276,000 | $0.00 | $0 | 520,807 | 12 d ago |
| Sep 25, 2026 | Sean Lie Chief Technology Officer | CConversion Class A Common Stock10b5-1 | +120,000 | - | - | 465,569 | 14 d ago |
| Sep 25, 2026 | Sean Lie Chief Technology Officer | GGift Class A Common Stock10b5-1 | -36,000 | $0.00 | $0 | 429,569 | 14 d ago |
| Sep 25, 2026 | Sean Lie Chief Technology Officer | SOpen-market sale Class A Common Stock10b5-1 | -500 | $212.14 | $106k | 429,069 | 14 d ago |
| Sep 25, 2026 | Sean Lie Chief Technology Officer | SOpen-market sale Class A Common Stock10b5-1 | -9,177 | $211.32 | $1.9M | 419,892 | 14 d ago |
| Sep 25, 2026 | Sean Lie Chief Technology Officer | SOpen-market sale Class A Common Stock10b5-1 | -30,565 | $210.45 | $6.4M | 389,327 | 14 d ago |
| Sep 25, 2026 | Sean Lie Chief Technology Officer | SOpen-market sale Class A Common Stock10b5-1 | -29,991 | $209.53 | $6.3M | 359,336 | 14 d ago |
| Sep 25, 2026 | Sean Lie Chief Technology Officer | SOpen-market sale Class A Common Stock10b5-1 | -21,022 | $208.41 | $4.4M | 338,314 | 14 d ago |
| Sep 25, 2026 | Sean Lie Chief Technology Officer | SOpen-market sale Class A Common Stock10b5-1 | -6,869 | $207.54 | $1.4M | 331,445 | 14 d ago |
| Sep 25, 2026 | Sean Lie Chief Technology Officer | SOpen-market sale Class A Common Stock10b5-1 | -13,776 | $206.63 | $2.8M | 317,669 | 14 d ago |
| Sep 25, 2026 | Sean Lie Chief Technology Officer | SOpen-market sale Class A Common Stock10b5-1 | -5,900 | $205.30 | $1.2M | 311,769 | 14 d ago |
| Sep 25, 2026 | Sean Lie Chief Technology Officer | SOpen-market sale Class A Common Stock10b5-1 | -2,200 | $204.50 | $450k | 309,569 | 14 d ago |
| Sep 25, 2026 | Sean Lie Chief Technology Officer | MOption exercise Stock Optionderivative10b5-1 | -116,875 | $0.00 | $0 | 172,146 | 14 d ago |
| Sep 25, 2026 | Sean Lie Chief Technology Officer | MOption exercise Stock Optionderivative10b5-1 | -3,125 | $0.00 | $0 | 32,420 | 14 d ago |
| Sep 25, 2026 | Sean Lie Chief Technology Officer | MOption exercise Class B Common Stockderivative10b5-1 | +120,000 | $0.00 | $0 | 7,702,992 | 14 d ago |
| Sep 25, 2026 | Sean Lie Chief Technology Officer | CConversion Class B Common Stockderivative10b5-1 | -120,000 | $0.00 | $0 | 7,582,992 | 14 d ago |
| Sep 23, 2026 | Lior Susan director | JOther Class A Common Stockindirect: See footnote | -451,118 | - | - | 6,490,711 | 17 d ago |
| Sep 23, 2026 | Lior Susan director | JOther Class A Common Stock | +25,757 | - | - | 351,927 | 17 d ago |
| Sep 23, 2026 | Lior Susan director | JOther Class A Common Stockindirect: See footnote | +23,735 | - | - | 309,603 | 17 d ago |
| Sep 21, 2026 | Eric Vishria director | JOther Class A Common Stockindirect: See Footnote10b5-1 | +44,507 | $0.00 | $0 | 275,854 | 19 d ago |
| Sep 21, 2026 | Andrew D. Feldman CEO, President | JOther Class A Common Stockindirect: By Feldman Bravo Family Trust | +120 | $0.00 | $0 | 926 | 19 d ago |
| Sep 15, 2026 | Lior Susan director | JOther Class A Common Stockindirect: See footnote | -451,115 | - | - | 6,941,829 | 25 d ago |
| Sep 15, 2026 | Lior Susan director | JOther Class A Common Stock | +24,463 | - | - | 315,124 | 25 d ago |
| Sep 15, 2026 | Lior Susan director | JOther Class A Common Stockindirect: See footnote | +23,734 | - | - | 278,775 | 25 d ago |
| Sep 8, 2026 | Eric Vishria director | JOther Class A Common Stockindirect: See Footnote10b5-1 | +44,507 | $0.00 | $0 | 231,347 | 32 d ago |
| Sep 4, 2026 | Andrew D. Feldman CEO, President | CConversion Class A Common Stock | +37,441 | $0.00 | $0 | 54,294 | 34 d ago |
| Sep 4, 2026 | Sean Lie Chief Technology Officer | CConversion Class A Common Stock | +46,141 | - | - | 415,067 | 34 d ago |
| Sep 4, 2026 | Steven Vassallo director | SOpen-market sale Class A Common Stockindirect: By Revocable Trust | -21,117 | $209.81 | $4.4M | 200,860 | 34 d ago |
| Sep 4, 2026 | Andrew D. Feldman CEO, President | SOpen-market sale Class A Common Stock10b5-1 | -1,100 | $199.18 | $219k | 53,194 | 34 d ago |
| Sep 4, 2026 | Sean Lie Chief Technology Officer | GGift Class A Common Stock | -16,038 | $0.00 | $0 | 399,029 | 34 d ago |
| Sep 4, 2026 | Steven Vassallo director | SOpen-market sale Class A Common Stockindirect: By Revocable Trust | -21,773 | $210.37 | $4.6M | 179,087 | 34 d ago |
| Sep 4, 2026 | Andrew D. Feldman CEO, President | SOpen-market sale Class A Common Stock10b5-1 | -300 | $200.79 | $60k | 52,894 | 34 d ago |
| Sep 4, 2026 | Sean Lie Chief Technology Officer | SOpen-market sale Class A Common Stock10b5-1 | -53,460 | $210.16 | $11M | 345,569 | 34 d ago |
| Sep 4, 2026 | Steven Vassallo director | SOpen-market sale Class A Common Stockindirect: By Revocable Trust | -7,110 | $211.56 | $1.5M | 171,977 | 34 d ago |
| Sep 4, 2026 | Andrew D. Feldman CEO, President | SOpen-market sale Class A Common Stock10b5-1 | -300 | $201.75 | $61k | 52,594 | 34 d ago |
| Sep 4, 2026 | Andrew D. Feldman CEO, President | SOpen-market sale Class A Common Stock10b5-1 | -900 | $202.97 | $183k | 51,694 | 34 d ago |
| Sep 4, 2026 | Sean Lie Chief Technology Officer | MOption exercise Stock Optionderivative | -46,141 | $0.00 | $0 | 289,021 | 34 d ago |
| Sep 4, 2026 | Andrew D. Feldman CEO, President | SOpen-market sale Class A Common Stock10b5-1 | -1,200 | $204.06 | $245k | 50,494 | 34 d ago |
| Sep 4, 2026 | Sean Lie Chief Technology Officer | MOption exercise Class B Common Stockderivative | +46,141 | $0.00 | $0 | 7,629,133 | 34 d ago |
| Sep 4, 2026 | Andrew D. Feldman CEO, President | SOpen-market sale Class A Common Stock10b5-1 | -800 | $206.30 | $165k | 49,694 | 34 d ago |
| Sep 4, 2026 | Sean Lie Chief Technology Officer | CConversion Class B Common Stockderivative | -46,141 | $0.00 | $0 | 7,582,992 | 34 d ago |
| Sep 4, 2026 | Andrew D. Feldman CEO, President | SOpen-market sale Class A Common Stock10b5-1 | -1,500 | $207.80 | $312k | 48,194 | 34 d ago |
| Sep 4, 2026 | Andrew D. Feldman CEO, President | SOpen-market sale Class A Common Stock10b5-1 | -1,707 | $208.84 | $356k | 46,487 | 34 d ago |
| Sep 4, 2026 | Andrew D. Feldman CEO, President | SOpen-market sale Class A Common Stock10b5-1 | -6,721 | $209.99 | $1.4M | 39,766 | 34 d ago |
| Sep 4, 2026 | Andrew D. Feldman CEO, President | SOpen-market sale Class A Common Stock10b5-1 | -6,153 | $210.91 | $1.3M | 33,613 | 34 d ago |
| Sep 4, 2026 | Andrew D. Feldman CEO, President | SOpen-market sale Class A Common Stock10b5-1 | -7,439 | $211.85 | $1.6M | 26,174 | 34 d ago |
| Sep 4, 2026 | Andrew D. Feldman CEO, President | SOpen-market sale Class A Common Stock10b5-1 | -3,324 | $213.04 | $708k | 22,850 | 34 d ago |
| Sep 4, 2026 | Andrew D. Feldman CEO, President | SOpen-market sale Class A Common Stock10b5-1 | -3,897 | $213.95 | $834k | 18,953 | 34 d ago |
| Sep 4, 2026 | Andrew D. Feldman CEO, President | SOpen-market sale Class A Common Stock10b5-1 | -1,400 | $214.98 | $301k | 17,553 | 34 d ago |
| Sep 4, 2026 | Andrew D. Feldman CEO, President | SOpen-market sale Class A Common Stock10b5-1 | -600 | $215.81 | $129k | 16,953 | 34 d ago |
| Sep 4, 2026 | Andrew D. Feldman CEO, President | SOpen-market sale Class A Common Stock10b5-1 | -100 | $216.62 | $22k | 16,853 | 34 d ago |
| Sep 8, 2026 | Andrew D. Feldman CEO, President | JOther Class A Common Stockindirect: By Feldman Bravo Family Trust | +120 | $0.00 | $0 | 806 | 34 d ago |
| Sep 4, 2026 | Andrew D. Feldman CEO, President | MOption exercise Stock Optionderivative | -37,441 | $0.00 | $0 | 525,000 | 34 d ago |
| Sep 4, 2026 | Andrew D. Feldman CEO, President | MOption exercise Class B Common Stockderivative | +37,441 | $0.00 | $0 | 13,982,575 | 34 d ago |
| Sep 4, 2026 | Andrew D. Feldman CEO, President | CConversion Class B Common Stockderivative | -37,441 | $0.00 | $0 | 13,945,134 | 34 d ago |
| Sep 2, 2026 | Lior Susan director | JOther Class A Common Stockindirect: See footnote | -902,236 | - | - | 7,392,944 | 38 d ago |
Insiders
Everyone who has filed a Form 4 here.
- Andrew D. FeldmanCEO, President
- Robert Patrick Komin Jr.Chief Financial Officer
- Sean LieChief Technology Officer
- Dhiraj MallickChief Operating Officer
- Yagnesh PatelChief Accounting Officer
- Lior Susandirector
- Steven Vassallodirector
- Eric Vishriadirector
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.