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CBRS

Cerebras Systems Inc. · Technology · Semiconductors
TECHSellMABuy · 10 ▲ZACKSHold R500#433 today TARGET+109%
$139.51 -1.40% today · -16.92% 1W
Oct 15 close or latest
ReadoutWhy it's moving

Moving with its group (SMH -2.1%)

Assembled from Wallsti's own signals.
Insiders · 1 month
$0
unplanned net · 0 buys · 4 sells · 4 insiders
sales: 0 unplanned, 4 under a 10b5-1 plan (0% unplanned)
Insiders · 3 months
−$259.2M
unplanned net · 0 buys · 15 sells · 7 insiders
sales: 10 unplanned, 5 under a 10b5-1 plan (67% unplanned)
Congress · 3 months
none
no reported trades
Congress · 1 year
none
no reported trades
Fund moves · 3 months
≈+$2.2B
3 buys · 0 sells · 3 investors
Held by funds · now
≈$2.4B
4 investors · largest: Coatue

Insiders

Trade dateInsiderRoleSideTypeSharesAvg priceValueFiled
Sep 29, 2026 Dhiraj Mallick COO Sell 10b5-1 plan 396,000 $204.04 $80.8M Sep 30
Sep 29, 2026 Robert Patrick Jr. Komin CFO Sell 10b5-1 plan 32,500 $203.53 $6.6M Sep 30
Sep 28, 2026 Yagnesh Patel CAO Sell 10b5-1 plan 1,320 $204.50 $269.9K Sep 30
Sep 25, 2026 Sean Lie CTO Sell 10b5-1 plan 120,000 $208.97 $25.1M Sep 28
Sep 4, 2026 Andrew D. Feldman CEO Sell unplanned 37,441 $210.46 $7.9M Sep 8
Sep 4, 2026 Sean Lie CTO Sell unplanned 53,460 $210.16 $11.2M Sep 8
Sep 4, 2026 Steven Vassallo Director Sell unplanned 50,000 $210.30 $10.5M Sep 8
Aug 21, 2026 Sean Lie CTO Sell unplanned 726,540 $207.90 $151.1M Aug 21
Aug 21, 2026 Andrew D. Feldman CEO Sell unplanned 237,559 $199.27 $47.3M Aug 25
Aug 18, 2026 Andrew D. Feldman CEO Sell unplanned 26,644 $222.22 $5.9M Aug 19
Aug 18, 2026 Sean Lie CTO Sell unplanned 21,257 $222.22 $4.7M Aug 20
Aug 18, 2026 Dhiraj Mallick COO Sell unplanned 38,889 $222.22 $8.6M Aug 20
Aug 18, 2026 Yagnesh Patel CAO Sell unplanned 4,574 $222.22 $1M Aug 20
Aug 17, 2026 Eric Vishria Director Sell 10b5-1 plan 68,268 $229.77 $15.7M Aug 19
Aug 14, 2026 Steven Vassallo Director Sell unplanned 50,000 $218.18 $10.9M Aug 18

Officers, directors and 10% owners file SEC Form 4 within two business days. Unplanned: the insider chose to trade now, the trades worth attention; their dollars make the net above. 10b5-1 plan: scheduled in advance, kept for the record. Tax: shares withheld on vesting stock, not a market trade. Awards, option exercises and gifts are left out. Source: SEC EDGAR, collected daily for the stocks discussed on Reddit.

Congress

No congressional trades in CBRS on record.

Members of Congress report trades within 45 days of the trade date, so these are never real-time. Amounts are disclosed as ranges; the net uses each range's midpoint (≈). Source: House and Senate periodic transaction reports via CongressInvests, refreshed daily.

Funds

Who holds it
InvestorSharesValueOf its portfolioVs quarter beforeAs of
Coatue (Philippe Laffont) 7,011,028 $1.5B 3.2% new Q2 2026
Tiger Global (Chase Coleman) 2,999,000 $662.8M 2.8% new Q2 2026
ARK Invest (Cathie Wood) 1,304,211 $184.5M ARKW 2.6% · ARKK 2.1% — Oct 15
Soros Fund Management (George Soros) 150,000 $33.1M 0.55% new Q2 2026
Their moves
DateInvestorMoveSourceShares≈ ValueNow heldFiled
Aug 14, 2026 Coatue (Philippe Laffont) New stake 13F, Q2 2026 7,011,028 $1.5B 3.2% Aug 14
Aug 14, 2026 Tiger Global (Chase Coleman) New stake 13F, Q2 2026 2,999,000 $662.8M 2.8% Aug 14
Aug 14, 2026 Soros Fund Management (George Soros) New stake 13F, Q2 2026 150,000 $33.1M 0.5% Aug 14
Aug 14, 2026 Coatue (Philippe Laffont) 5%+ stake SCHEDULE 13G Aug 14
May 22, 2026 Tiger Global (Chase Coleman) 5%+ stake SCHEDULE 13G May 22

Well-known investors we follow (Buffett, Ackman, Icahn, Druckenmiller, Tepper, Soros and others). 13F: managers report their US stock holdings up to 45 days after each quarter; the change from the quarter before is dated by the filing, the trades happened some time in the quarter, and the value is at the quarter-end price (≈). New and closed positions, and adds or cuts of 20% or more, of positions at least 0.2% of the portfolio. ARK: Cathie Wood's ETFs publish their holdings every morning; the change beyond the fund's own inflows and outflows, dated by the session it traded. 5%+ stake: Schedule 13D (with intent to influence) or 13G (passive), filed within days. Source: SEC EDGAR, ark-funds.com, refreshed daily. Who holds it: each investor's latest 13F portfolio (positions at the quarter's end; one sold since would not show until the next filing), and ARK's ETFs as of their latest daily file. The funds we follow and their portfolios · All recent insider, congressional and fund moves