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Benchmark Founders' Fund Ix-b, L.p.

CBRS
10% OWNER · CEREBRAS SYSTEMS INC. · CIK 0001754351
FILING MIX · LIFETIME25%/75%
BUYS
2
SELLS
6
TOTAL VALUE
$0
COMPANIES
1
ACTIVE SINCE
May 2026
HOLDINGS NOW
0
AVG SELL PX
—
TRADE KIND
SHOWING 8 / 8
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
No backtest data available for Benchmark Founders' Fund Ix-b, L.p.. Backtests are computed for purchase (P) and sale (S) transactions with resolvable price history.
Holdings over time
CBRS · 0 shares · as of May 15, 2026
03,596,3377,192,67410,789,01014,385,347SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2026
FLOW · 2 buys / 6 sellsCOVERAGE · 1 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
CBRS
CEREBRAS SYSTEMS INC.
SALE
335,293——0May 15, 2026May 19, 2026 ↗View →
CBRS
CEREBRAS SYSTEMS INC.
SALE
30,968——0May 15, 2026May 19, 2026 ↗View →
CBRS
CEREBRAS SYSTEMS INC.
SALE
5,457——0May 15, 2026May 19, 2026 ↗View →
CBRS
CEREBRAS SYSTEMS INC.
PURCHASE
689,990——689,990May 15, 2026May 19, 2026 ↗View →
CBRS
CEREBRAS SYSTEMS INC.
PURCHASE
14,385,347——14,385,347May 15, 2026May 19, 2026 ↗View →
CBRS
CEREBRAS SYSTEMS INC.
SALE
1,425,394——0May 15, 2026May 19, 2026 ↗View →
CBRS
CEREBRAS SYSTEMS INC.
SALE
12,588,235——0May 15, 2026May 19, 2026 ↗View →
CBRS
CEREBRAS SYSTEMS INC.
SALE
689,990——0May 15, 2026May 19, 2026 ↗View →
Other insiders · CBRS
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About this filer
CIK 0001754351
ROLE
10% Owner
PRIMARY
CBRS
COMPANIES
1
ACTIVE SINCE
May 2026
MARKETPEEL · /INSIDER/0001754351DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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