Insider · CIK 0001567929
Steven Vassallo
director
Files at CBRS (Cerebras Systems Inc.). First filing Aug 18, 2026, latest Sep 8, 2026.
Steven Vassallo files SEC Form 4 as director at CBRS (Cerebras Systems Inc.). Since Aug 18, 2026, Steven Vassallo has reported 0 open-market buys worth $0 and 2 open-market sells worth $21M, the latest filed on Sep 8, 2026.
A track record needs three past buys with six months of prices behind them; Steven Vassallo has 0, so none is measured yet.
The newest scored trade: sold $11M of CBRS on Sep 4, 2026, filed Sep 8, 2026, scored 60 (notable). In the last 12 months: 0 buys worth $0 and 2 sells worth $21M.
Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 0
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
0 / 2
$0 bought, $21M sold
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
CBRS: Cerebras Systems Inc.
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
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 60Notable | Cerebras Systems Inc. | $11M 50,000 shares | -23% | +25% from low-32% from high | |
| 75Notable | Cerebras Systems Inc. | $11M 50,000 shares | -50% | +30% from low-30% from high |
Planned sales
Form 144 notices this insider filed before selling restricted or control stock, newest first.
| Filed | Company | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| Sep 4, 2026 | CBRS Cerebras Systems Inc. | 50,000 0.04% of outstanding | $9.5M | Sep 4, 2026 | $11M |
| Aug 14, 2026 | CBRS Cerebras Systems Inc. | 50,000 0.04% of outstanding | $12M | Aug 14, 2026 | none |
Transactions
The newest 50 of 64 rows this insider has filed.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Sep 4, 2026 | CBRS Cerebras Systems Inc. | SOpen-market sale Class A Common Stockindirect: By Revocable Trust | -21,117 | $209.81 | $4.4M | 200,860 | 35 d ago |
| Sep 4, 2026 | CBRS Cerebras Systems Inc. | SOpen-market sale Class A Common Stockindirect: By Revocable Trust | -21,773 | $210.37 | $4.6M | 179,087 | 35 d ago |
| Sep 4, 2026 | CBRS Cerebras Systems Inc. | SOpen-market sale Class A Common Stockindirect: By Revocable Trust | -7,110 | $211.56 | $1.5M | 171,977 | 35 d ago |
| Aug 21, 2026 | CBRS Cerebras Systems Inc. | CConversion Class A Common Stockindirect: By Foundation Capital VIII, L.P. | +1,112,904 | - | - | 1,112,904 | Aug 25, 2026 |
| Aug 21, 2026 | CBRS Cerebras Systems Inc. | CConversion Class A Common Stockindirect: By Foundation Capital VIII Principals Fund, L.L.C. | +23,970 | - | - | 23,970 | Aug 25, 2026 |
| Aug 21, 2026 | CBRS Cerebras Systems Inc. | CConversion Class A Common Stockindirect: By Foundation Capital Leadership Fund II, L.P. | +87,313 | - | - | 87,313 | Aug 25, 2026 |
| Aug 21, 2026 | CBRS Cerebras Systems Inc. | JOther Class A Common Stockindirect: By Foundation Capital VIII, L.P. | -1,112,904 | $0.00 | $0 | 0 | Aug 25, 2026 |
| Aug 21, 2026 | CBRS Cerebras Systems Inc. | JOther Class A Common Stockindirect: By Foundation Capital VIII Principals Fund, L.L.C. | -23,970 | $0.00 | $0 | 0 | Aug 25, 2026 |
| Aug 21, 2026 | CBRS Cerebras Systems Inc. | JOther Class A Common Stockindirect: By Foundation Capital Leadership Fund II, L.P. | -87,313 | $0.00 | $0 | 0 | Aug 25, 2026 |
| Aug 21, 2026 | CBRS Cerebras Systems Inc. | JOther Class A Common Stockindirect: By Foundation Capital Management Co. VIII, L.L.C. | +287,932 | $0.00 | $0 | 287,932 | Aug 25, 2026 |
| Aug 21, 2026 | CBRS Cerebras Systems Inc. | JOther Class A Common Stockindirect: By Foundation Capital Management Co. VIII, L.L.C. | -287,932 | $0.00 | $0 | 0 | Aug 25, 2026 |
| Aug 21, 2026 | CBRS Cerebras Systems Inc. | JOther Class A Common Stockindirect: By Foundation Capital Management Co. LF II, L.L.C. | +18,155 | $0.00 | $0 | 18,155 | Aug 25, 2026 |
| Aug 21, 2026 | CBRS Cerebras Systems Inc. | JOther Class A Common Stockindirect: By Foundation Capital Management Co. LF II, L.L.C. | -18,155 | $0.00 | $0 | 0 | Aug 25, 2026 |
| Aug 21, 2026 | CBRS Cerebras Systems Inc. | JOther Class A Common Stockindirect: By Revocable Trust | +67,168 | $0.00 | $0 | 221,977 | Aug 25, 2026 |
| Aug 21, 2026 | CBRS Cerebras Systems Inc. | JOther Class A Common Stockindirect: By Irrevocable Trust | +34,548 | $0.00 | $0 | 139,618 | Aug 25, 2026 |
| Aug 21, 2026 | CBRS Cerebras Systems Inc. | CConversion Class B Common Stockderivativeindirect: By Foundation Capital VIII, L.P. | -1,112,904 | - | - | 9,320,575 | Aug 25, 2026 |
| Aug 21, 2026 | CBRS Cerebras Systems Inc. | CConversion Class B Common Stockderivativeindirect: By Foundation Capital VIII Principals Fund, LLC | -23,970 | - | - | 200,751 | Aug 25, 2026 |
| Aug 21, 2026 | CBRS Cerebras Systems Inc. | CConversion Class B Common Stockderivativeindirect: By Foundation Capital Leadership Fund II, L.P. | -87,313 | - | - | 731,246 | Aug 25, 2026 |
| Aug 18, 2026 | CBRS Cerebras Systems Inc. | CConversion Class A Common Stockindirect: By Foundation Capital VIII, L.P. | +1,738,913 | - | - | 1,738,913 | Aug 20, 2026 |
| Aug 18, 2026 | CBRS Cerebras Systems Inc. | CConversion Class A Common Stockindirect: By Foundation Capital VIII Principals Fund, L.L.C. | +37,453 | - | - | 37,453 | Aug 20, 2026 |
| Aug 18, 2026 | CBRS Cerebras Systems Inc. | CConversion Class A Common Stockindirect: By Foundation Capital Leadership Fund II, L.P. | +136,426 | - | - | 136,426 | Aug 20, 2026 |
| Aug 18, 2026 | CBRS Cerebras Systems Inc. | JOther Class A Common Stockindirect: By Foundation Capital VIII, L.P. | -1,738,913 | $0.00 | $0 | 0 | Aug 20, 2026 |
| Aug 18, 2026 | CBRS Cerebras Systems Inc. | JOther Class A Common Stockindirect: By Foundation Capital VIII Principals Fund, L.L.C. | -37,453 | $0.00 | $0 | 0 | Aug 20, 2026 |
| Aug 18, 2026 | CBRS Cerebras Systems Inc. | JOther Class A Common Stockindirect: By Foundation Capital Leadership Fund II, L.P. | -136,426 | $0.00 | $0 | 0 | Aug 20, 2026 |
| Aug 18, 2026 | CBRS Cerebras Systems Inc. | JOther Class A Common Stockindirect: By Foundation Capital Management Co. VIII, L.L.C. | +449,885 | $0.00 | $0 | 449,885 | Aug 20, 2026 |
| Aug 18, 2026 | CBRS Cerebras Systems Inc. | JOther Class A Common Stockindirect: By Foundation Capital Management Co. VIII, L.L.C. | -449,885 | $0.00 | $0 | 0 | Aug 20, 2026 |
| Aug 18, 2026 | CBRS Cerebras Systems Inc. | JOther Class A Common Stockindirect: By Foundation Capital Management Co. LF II, L.L.C. | +28,373 | $0.00 | $0 | 29,741 | Aug 20, 2026 |
| Aug 18, 2026 | CBRS Cerebras Systems Inc. | JOther Class A Common Stockindirect: By Foundation Capital Management Co. LF II, L.L.C. | -29,741 | $0.00 | $0 | 0 | Aug 20, 2026 |
| Aug 18, 2026 | CBRS Cerebras Systems Inc. | JOther Class A Common Stockindirect: By Revocable Trust | +105,210 | $0.00 | $0 | 154,809 | Aug 20, 2026 |
| Aug 18, 2026 | CBRS Cerebras Systems Inc. | JOther Class A Common Stockindirect: By Irrevocable Trust | +54,126 | $0.00 | $0 | 105,070 | Aug 20, 2026 |
| Aug 18, 2026 | CBRS Cerebras Systems Inc. | CConversion Class B Common Stockderivativeindirect: By Foundation Capital VIII, L.P. | -1,738,913 | - | - | 10,433,479 | Aug 20, 2026 |
| Aug 18, 2026 | CBRS Cerebras Systems Inc. | CConversion Class B Common Stockderivativeindirect: By Foundation Capital VIII Principals Fund, LLC | -37,453 | - | - | 224,721 | Aug 20, 2026 |
| Aug 18, 2026 | CBRS Cerebras Systems Inc. | CConversion Class B Common Stockderivativeindirect: By Foundation Capital Leadership Fund II, L.P. | -136,426 | - | - | 818,559 | Aug 20, 2026 |
| Jun 24, 2026 | CBRS Cerebras Systems Inc. | CConversion Class A Common Stockindirect: By Foundation Capital VIII, L.P. | +1,391,131 | - | - | 1,391,131 | Aug 18, 2026 |
| Jun 24, 2026 | CBRS Cerebras Systems Inc. | CConversion Class A Common Stockindirect: By Foundation Capital VIII Principals Fund, LLC | +29,963 | - | - | 29,963 | Aug 18, 2026 |
| Jun 24, 2026 | CBRS Cerebras Systems Inc. | CConversion Class A Common Stockindirect: By Foundation Capital Leadership Fund II, L.P. | +109,141 | - | - | 109,141 | Aug 18, 2026 |
| Aug 14, 2026 | CBRS Cerebras Systems Inc. | CConversion Class A Common Stockindirect: By Foundation Capital VIII, L.P. | +347,782 | - | - | 1,738,913 | Aug 18, 2026 |
| Aug 14, 2026 | CBRS Cerebras Systems Inc. | CConversion Class A Common Stockindirect: By Foundation Capital VIII Principals Fund, L.L.C. | +7,490 | - | - | 37,453 | Aug 18, 2026 |
| Aug 14, 2026 | CBRS Cerebras Systems Inc. | CConversion Class A Common Stockindirect: By Foundation Capital Leadership Fund II, L.P. | +27,285 | - | - | 136,426 | Aug 18, 2026 |
| Aug 14, 2026 | CBRS Cerebras Systems Inc. | JOther Class A Common Stockindirect: By Foundation Capital VIII, L.P. | -1,738,913 | $0.00 | $0 | 0 | Aug 18, 2026 |
| Aug 14, 2026 | CBRS Cerebras Systems Inc. | 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 | CBRS Cerebras Systems Inc. | 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 | CBRS Cerebras Systems Inc. | 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 | CBRS Cerebras Systems Inc. | 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 | CBRS Cerebras Systems Inc. | 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 | CBRS Cerebras Systems Inc. | JOther Class A Common Stockindirect: By Revocable Trust | +99,599 | $0.00 | $0 | 99,599 | Aug 18, 2026 |
| Aug 14, 2026 | CBRS Cerebras Systems Inc. | JOther Class A Common Stockindirect: By Irrevocable Trust | +50,944 | $0.00 | $0 | 50,944 | Aug 18, 2026 |
| Aug 14, 2026 | CBRS Cerebras Systems Inc. | SOpen-market sale Class A Common Stockindirect: By Revocable Trust | -6,081 | $216.38 | $1.3M | 93,518 | Aug 18, 2026 |
| Aug 14, 2026 | CBRS Cerebras Systems Inc. | SOpen-market sale Class A Common Stockindirect: By Revocable Trust | -16,671 | $217.47 | $3.6M | 76,847 | Aug 18, 2026 |
| Aug 14, 2026 | CBRS Cerebras Systems Inc. | SOpen-market sale Class A Common Stockindirect: By Revocable Trust | -11,834 | $218.46 | $2.6M | 65,013 | Aug 18, 2026 |
50 of 64 rows shown.
Questions about Steven Vassallo
Answered from the filings on this page, as of the latest one.
Is Steven Vassallo buying or selling?
In the last 12 months Steven Vassallo reported 0 open-market buys worth $0 and 2 open-market sells worth $21M on SEC Form 4; the latest was sold $11M of CBRS on Sep 4, 2026. Grants, option exercises and tax withholding are not counted.
How did Steven Vassallo's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Steven Vassallo has 0.
Where does Steven Vassallo file Form 4?
Steven Vassallo has filed Form 4 at CBRS (Cerebras Systems Inc.). A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
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.