sellNotable cluster of 6
Steven Vassallo sold $11M of CBRS
director at Cerebras Systems Inc.. 50,000 shares at an average of $218.18, traded Aug 14, 2026, filed Aug 18, 2026.
Warning score
75Value
$11M
50,000 shares
Holdings after
49,599
-50% from before
From 52-week low
+30%
low $168.52, close $218.98
From 52-week high
-30%
high $311.07, as of Aug 14, 2026
Score components
- +15RoleDirector
- +25Trade size$10.9M at market
- +20Share of holdings soldSold 50% of holdings
- +15Cluster6 insiders selling within 14 days
What happened after comparable sells
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
Price around the trade, and since
From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.
CBRSOct 9, 2026 · close 164.17
Since filing Aug 18, 2026: -25.4%SPY +1.6% · excess -27.0%
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™
Rows in this filing
Every transaction in Form 4 0001567929-26-000003, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Jun 24, 2026 | CConversion Class A Common Stockindirect: By Foundation Capital VIII, L.P. | +1,391,131 | - | - | 1,391,131 | Aug 18, 2026 |
| Jun 24, 2026 | CConversion Class A Common Stockindirect: By Foundation Capital VIII Principals Fund, LLC | +29,963 | - | - | 29,963 | Aug 18, 2026 |
| Jun 24, 2026 | CConversion Class A Common Stockindirect: By Foundation Capital Leadership Fund II, L.P. | +109,141 | - | - | 109,141 | Aug 18, 2026 |
| Aug 14, 2026 | CConversion Class A Common Stockindirect: By Foundation Capital VIII, L.P. | +347,782 | - | - | 1,738,913 | Aug 18, 2026 |
| Aug 14, 2026 | CConversion Class A Common Stockindirect: By Foundation Capital VIII Principals Fund, L.L.C. | +7,490 | - | - | 37,453 | Aug 18, 2026 |
| Aug 14, 2026 | CConversion Class A Common Stockindirect: By Foundation Capital Leadership Fund II, L.P. | +27,285 | - | - | 136,426 | Aug 18, 2026 |
| Aug 14, 2026 | JOther Class A Common Stockindirect: By Foundation Capital VIII, L.P. | -1,738,913 | $0.00 | $0 | 0 | Aug 18, 2026 |
| Aug 14, 2026 | JOther Class A Common Stockindirect: By Foundation Capital VIII Principals Fund, L.L.C. | -37,453 | $0.00 | $0 | 0 | Aug 18, 2026 |
| Aug 14, 2026 | JOther Class A Common Stockindirect: By Foundation Capital Leadership Fund II, L.P. | -136,426 | $0.00 | $0 | 0 | Aug 18, 2026 |
| Aug 14, 2026 | JOther Class A Common Stockindirect: By Foundation Capital Management Co. VIII, L.L.C. | +449,885 | $0.00 | $0 | 449,885 | Aug 18, 2026 |
| Aug 14, 2026 | JOther Class A Common Stockindirect: By Foundation Capital Management Co. VIII, L.L.C. | -449,885 | $0.00 | $0 | 0 | Aug 18, 2026 |
| Aug 14, 2026 | JOther Class A Common Stockindirect: By Foundation Capital Management Co. LF II, L.L.C. | +1,368 | $0.00 | $0 | 1,368 | Aug 18, 2026 |
| Aug 14, 2026 | JOther Class A Common Stockindirect: By Revocable Trust | +99,599 | $0.00 | $0 | 99,599 | Aug 18, 2026 |
| Aug 14, 2026 | JOther Class A Common Stockindirect: By Irrevocable Trust | +50,944 | $0.00 | $0 | 50,944 | Aug 18, 2026 |
| Aug 14, 2026 | SOpen-market sale Class A Common Stockindirect: By Revocable Trust | -6,081 | $216.38 | $1.3M | 93,518 | Aug 18, 2026 |
| Aug 14, 2026 | SOpen-market sale Class A Common Stockindirect: By Revocable Trust | -16,671 | $217.47 | $3.6M | 76,847 | Aug 18, 2026 |
| Aug 14, 2026 | SOpen-market sale Class A Common Stockindirect: By Revocable Trust | -11,834 | $218.46 | $2.6M | 65,013 | Aug 18, 2026 |
| Aug 14, 2026 | SOpen-market sale Class A Common Stockindirect: By Revocable Trust | -14,323 | $219.41 | $3.1M | 50,690 | Aug 18, 2026 |
| Aug 14, 2026 | SOpen-market sale Class A Common Stockindirect: By Revocable Trust | -1,091 | $219.97 | $240k | 49,599 | Aug 18, 2026 |
| Jun 24, 2026 | CConversion Class B Common Stockderivativeindirect: By Foundation Capital VIII, L.P. | -1,391,131 | - | - | 12,520,174 | Aug 18, 2026 |
| Jun 24, 2026 | CConversion Class B Common Stockderivativeindirect: By Foundation Capital VIII Principals Fund, LLC | -29,963 | - | - | 269,664 | Aug 18, 2026 |
| Jun 24, 2026 | CConversion Class B Common Stockderivativeindirect: By Foundation Capital Leadership Fund II, L.P. | -109,141 | - | - | 982,270 | Aug 18, 2026 |
| Aug 14, 2026 | CConversion Class B Common Stockderivativeindirect: By Foundation Capital VIII, L.P. | -347,782 | - | - | 12,172,392 | Aug 18, 2026 |
| Aug 14, 2026 | CConversion Class B Common Stockderivativeindirect: By Foundation Capital VIII Principals Fund, LLC | -7,490 | - | - | 262,174 | Aug 18, 2026 |
| Aug 14, 2026 | CConversion Class B Common Stockderivativeindirect: By Foundation Capital Leadership Fund II, L.P. | -27,285 | - | - | 954,985 | Aug 18, 2026 |
Related signals
Other insiders at Cerebras Systems Inc. and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 23Weak | Cerebras Systems Inc. | Yagnesh Patel Chief Accounting Officer | $270k 1,320 shares | -8% | |
| 45Moderate | Cerebras Systems Inc. | Dhiraj Mallick Chief Operating Officer | $81M 396,000 shares | -100% | |
| 62Notable | Cerebras Systems Inc. | Robert Patrick Komin Jr. Chief Financial Officer | $6.6M 32,500 shares | -100% | |
| 30Weak | Cerebras Systems Inc. | Sean Lie Chief Technology Officer | $25M 120,000 shares | -28% | |
| 50Moderate | Cerebras Systems Inc. | Andrew D. Feldman CEO, President | $7.9M 37,441 shares | -69% | |
| 25Weak | Cerebras Systems Inc. | Sean Lie Chief Technology Officer | $11M 53,460 shares | -13% | |
| 60Notable | Cerebras Systems Inc. | Steven Vassallo director | $11M 50,000 shares | -23% | |
| 50Moderate | Cerebras Systems Inc. | Andrew D. Feldman CEO, President | $47M 237,559 shares | -93% | |
| 40Moderate | Cerebras Systems Inc. | Sean Lie Chief Technology Officer | $151M 726,540 shares | -67% | |
| 55Moderate | Cerebras Systems Inc. | Sean Lie Chief Technology Officer | $4.7M 21,257 shares | -3% |
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.