Wallsti
Macro Mon 10:00 ISM Manufacturing PMI 55.5vs 54.5 stronger S&P fut +0.42%10y +2bp Next
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TER

Teradyne, Inc. · Technology · Semiconductor Equipment & Materials
TECHStrong SellMABuy · 7ZACKSStrong Buy R500#476 today TARGET+63% EARNINGSEPS adj. beat +11% · rev +2.8%
$261.01 -4.87% today · -15.53% 1W
Nov 2 close or latest
Pre-market $266.00 +1.91% ·
Why it movedMoving with its chip equipment peersReadout ›

Holders' trades in the past 90 days

Net selling: ≈$184.5M sold against ≈$32.8M bought. Net of both sides: 0.21% of the float.

WhoDoing≈ ValueOf the floatOf market capTheir stakePublicPrice sincePrice vs theirs
ARK Invest · ARK daily Sold · 3 sessions, Oct 6 – Oct 8 $41.8M 0.06% 0.10% 0.29% of shares Oct 8 -34.5% -38.1%
ARK Invest · ARK daily Sold · 3 sessions, Oct 20 – Oct 22 $24.9M 0.05% 0.06% 0.29% of shares Oct 22 -15.5% -17.6%
ARK Invest · ARK daily Bought · 1 session, Oct 28 $23.4M 0.05% 0.06% 0.29% of shares Oct 28 -16.7% -16.7%
ARK Invest · ARK daily Bought · 1 session, Aug 10 $9.4M 0.02% 0.02% 0.29% of shares Aug 10 -28.5% -28.5%
ARK Invest · ARK daily Sold · 1 session, Oct 13 $1.4M <0.01% <0.01% 0.29% of shares Oct 13 -31.4% -31.4%
Bridgewater · 13F Sold · Q2 2026 $116.3M 0.15% 0.29% 0.06% of shares
0.20% of its portfolio
Aug 14 -37.7% -46.1%

In Wallsti's check of 2020–2026, stocks trailed QQQ by about 3% over the 60 sessions after ARK's buys and did about as well as QQQ after its sales.

The chart beside it

Technical rating: Strong Sell (0 buy, 10 neutral, 16 sell of 26 indicators). RSI 27. Price -27.9% vs its 50-day average, -25.3% vs its 200-day, -46.0% from its 52-week high. Next 5 sessions: bargain $235.48 (-9.8%), stretch $289.31 (+10.8%). Technical · Pricing

Everyone we follow who traded the stock in the past 90 days, the runs still going first. Public: the day the trade became known (ARK's the evening of each session, a Form 4 or 13F on its filing day, Congress's on its report); price since: from that day's close to the latest. Price vs theirs: the latest price against the average they paid or got (a 13F's is the quarter-end price). Of the float: the shares traded over the shares the public can trade; their stake: shares held over all shares outstanding (a manager's: its last 13F plus its Form 4 runs since, ≈). Insiders: unplanned trades only (open-market buys, sales outside a 10b5-1 plan). 13F values are at the quarter's end and the trades happened some time in the quarter. The technical rating and bargain / stretch prices are the Technical and Pricing tabs' own. These describe the flow, not a forecast.

Insiders · 1 month
$0
unplanned net · 0 buys · 2 sells · 2 insiders
sales: 0 unplanned, 2 under a 10b5-1 plan (0% unplanned)
Insiders · 3 months
$0
unplanned net · 0 buys · 9 sells · 3 insiders
sales: 0 unplanned, 9 under a 10b5-1 plan (0% unplanned)
Congress · 3 months
none
no reported trades
Congress · 1 year
≈+$8K
1 buy · 0 sells · 1 member
Fund moves · 3 months
≈−$151.7M
2 buys · 8 sells · 2 investors
Held by funds · now
≈$174M
2 investors · largest: ARK Invest

Insiders

Trade dateInsiderRoleSideTypeSharesAvg priceValueFiled
Oct 15, 2026 Marilyn Matz Director Sell 10b5-1 plan 800 $341.28 $273K Oct 19
Oct 15, 2026 Gregory Stephen Smith CEO Sell 10b5-1 plan 4,000 $341.28 $1.4M Oct 19
Oct 1, 2026 Mercedes Johnson Director Sell 10b5-1 plan 167 $402.90 $67.3K Oct 2
Sep 17, 2026 Marilyn Matz Director Sell 10b5-1 plan 400 $351.11 $140.4K Sep 18
Sep 15, 2026 Marilyn Matz Director Sell 10b5-1 plan 800 $337.83 $270.3K Sep 16
Sep 15, 2026 Gregory Stephen Smith CEO Sell 10b5-1 plan 4,000 $337.83 $1.4M Sep 16
Sep 1, 2026 Mercedes Johnson Director Sell 10b5-1 plan 167 $341.30 $57K Sep 2
Aug 17, 2026 Marilyn Matz Director Sell 10b5-1 plan 1,200 $425.00 $510K Aug 18
Aug 17, 2026 Gregory Stephen Smith CEO Sell 10b5-1 plan 4,000 $425.00 $1.7M Aug 18
Aug 3, 2026 Mercedes Johnson Director Sell 10b5-1 plan 166 $358.15 $59.5K Aug 4
Jul 15, 2026 Marilyn Matz Director Sell 10b5-1 plan 1,200 $356.31 $427.6K Jul 16
Jul 15, 2026 Gregory Stephen Smith CEO Sell 10b5-1 plan 4,000 $356.31 $1.4M Jul 16
Jul 1, 2026 Mercedes Johnson Director Sell 10b5-1 plan 167 $460.00 $76.8K Jul 2
Jun 15, 2026 Gregory Stephen Smith CEO Sell 10b5-1 plan 4,000 $423.03 $1.7M Jun 16
Jun 15, 2026 Marilyn Matz Director Sell 10b5-1 plan 1,200 $423.03 $507.6K Jun 16

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

Trade dateMemberChamberSideAmountDisclosed
Mar 27, 2026 Alan Armstrong Senate Buy $1K–$15K Jul 21
Oct 31, 2025 Lisa McClain House Sell $1K–$15K Nov 21
Oct 30, 2025 Lisa McClain House Buy $1K–$15K Nov 21
Oct 30, 2025 Lisa McClain House Sell $1K–$15K Nov 21

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
ARK Invest (Cathie Wood) 460,188 $126.3M ARKQ 3.7% · ARKX 2.6% · ARKK 0.7% — Nov 2
Bridgewater (Ray Dalio's firm) 98,627 $47.7M 0.20% -71% Q2 2026
ARK's position

ARK is cutting TER: 1.5% → 0.95% of its portfolio in a month, −0.31 points from selling (≈$44.8M).

OverShare of ARK then → nowNet bought or soldFrom tradingFrom price and other
1M since Oct 2 1.5% → 0.95% −$44.8M −0.31−0.28
3M since Aug 3 1.7% → 0.95% −$35.4M −0.25−0.52
1Y since Oct 31 2.8% → 0.95% −$605.8M −4.4+2.6
ARK's buying and selling runs
SideTradedSessions tradedShares≈ ValueOf each session's volumePrice over it
Buying Oct 28, 2026 1 74,691 $23.4M 1.5%
Selling Oct 20 – Oct 22, 2026 3 78,630 $24.9M 0.7% -8.3%
Selling Oct 13, 2026 1 3,797 $1.4M 0.1%

Share of ARK: the stock's value over all of ARK's ETFs added up, from their daily holdings. From trading: the net dollars ARK bought (+) or sold (−) over the window's average assets, in points; from price and other: the rest of the change, mostly the stock's price against ARK's other holdings. A run: ARK trading the stock the same way with at most two sessions between trades (ARK spreads large orders out). This describes ARK's flow, not the price: in our check of 2020–2026, stocks trailed QQQ by about 3% over the 60 sessions after ARK's buys, and did about as well as QQQ after its sales.

Their moves
DateInvestorMoveSourceShares≈ ValueNow heldFiled
Oct 28, 2026 ARK Invest (Cathie Wood) Bought ARKK, ARKQ, ARKX 74,691 $23.4M source
Oct 22, 2026 ARK Invest (Cathie Wood) Sold ARKK 57,444 $17.7M source
Oct 21, 2026 ARK Invest (Cathie Wood) Sold ARKQ 5,222 $1.8M source
Oct 20, 2026 ARK Invest (Cathie Wood) Sold ARKQ 15,964 $5.4M source
Oct 13, 2026 ARK Invest (Cathie Wood) Sold ARKQ, ARKX 3,797 $1.4M source
Oct 8, 2026 ARK Invest (Cathie Wood) Sold ARKQ, ARKX 10,553 $4.2M source
Oct 7, 2026 ARK Invest (Cathie Wood) Sold ARKQ, ARKX 27,066 $11.1M source
Oct 6, 2026 ARK Invest (Cathie Wood) Sold ARKQ, ARKX 61,547 $26.5M source
Aug 14, 2026 Bridgewater (Ray Dalio's firm) Trimmed 13F, Q2 2026 240,319 $116.3M 0.2% Aug 14
Aug 10, 2026 ARK Invest (Cathie Wood) Bought ARKK 25,790 $9.4M source
Jul 23, 2026 ARK Invest (Cathie Wood) Sold ARKX 2,153 $804.7K source
Jun 11, 2026 ARK Invest (Cathie Wood) Sold ARKK, ARKQ, ARKX 207,509 $79.1M source
Jun 4, 2026 ARK Invest (Cathie Wood) Sold ARKK, ARKQ 23,047 $9.4M source
Jun 3, 2026 ARK Invest (Cathie Wood) Sold ARKK, ARKQ, ARKX 46,670 $19.1M source
Jun 1, 2026 ARK Invest (Cathie Wood) Sold ARKQ, ARKX 23,584 $8.7M source

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