Wallsti
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ISRG

Intuitive Surgical, Inc. · Healthcare · Medical Instruments & Supplies
TECHBuyMABuy · 8ZACKSBuy R500#245 today TARGET+10%
$436.87 +1.12% today · -3.27% 1W
Nov 2 close or latest
Why it's movingOutperforming without a clear catalyst yetReadout ›

Holders' trades in the past 90 days

Buying: ≈$2.7M bought, nothing sold. Net of both sides: <0.01% of the float.

WhoDoing≈ ValueOf the floatOf market capTheir stakePublicPrice sincePrice vs theirs
ARK Invest · ARK daily Bought · 1 session, Oct 21 $2.7M <0.01% <0.01% 0.02% of shares Oct 21 +2.0% +2.0%

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: Buy (12 buy, 9 neutral, 5 sell of 26 indicators). RSI 57. Price +8.5% vs its 50-day average, +1.0% vs its 200-day, -26.3% from its 52-week high. Next 5 sessions: bargain $419.15 (-4.1%), stretch $455.34 (+4.2%). 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
none
no open-market trades
Insiders · 3 months
$0
unplanned net · 0 buys · 8 sells · 5 insiders
sales: 0 unplanned, 8 under a 10b5-1 plan (0% unplanned)
Congress · 3 months
none
no reported trades
Congress · 1 year
≈+$64.5K
5 buys · 0 sells · 3 members
Fund moves · 3 months
≈+$2.7M
1 buy · 0 sells · 1 investor
Held by funds · now
≈$354.7M
3 investors · largest: Coatue

Insiders

Trade dateInsiderRoleSideTypeSharesAvg priceValueFiled
Sep 15, 2026 Fredrik Widman VP Corporate Controller Sell 10b5-1 plan 1,089 $374.44 $407.8K Sep 16
Sep 11, 2026 Mark Brosius EVP Sell 10b5-1 plan 48 $357.10 $17.1K Sep 11
Sep 9, 2026 Mark Brosius EVP Sell 10b5-1 plan 69 $357.55 $24.7K Sep 9
Aug 21, 2026 Mark Brosius EVP Sell 10b5-1 plan 154 $385.97 $59.4K Aug 21
Aug 19, 2026 Mark Brosius EVP Sell 10b5-1 plan 231 $392.98 $90.8K Aug 19
Aug 11, 2026 Amy L Ladd Director Sell 10b5-1 plan 472 $381.15 $179.9K Aug 11
Aug 11, 2026 Gary S Guthart Director Sell 10b5-1 plan 10,000 $400.00 $4M Aug 12
Aug 10, 2026 Gary Loeb General Counsel Sell 10b5-1 plan 400 $379.00 $151.6K Aug 10
Jul 31, 2026 Mark Brosius EVP Sell 10b5-1 plan 56 $348.91 $19.5K Jul 31
Jul 29, 2026 Mark Brosius EVP Sell 10b5-1 plan 84 $356.60 $30K Jul 29
Jun 12, 2026 Mark Brosius EVP Sell 10b5-1 plan 48 $413.19 $19.8K Jun 12
Jun 10, 2026 Gary Loeb General Counsel Sell 10b5-1 plan 400 $424.14 $169.7K Jun 10
Jun 10, 2026 Mark Brosius EVP Sell 10b5-1 plan 69 $421.80 $29.1K Jun 10
Jun 1, 2026 Iman Jeddi SVP Sell 10b5-1 plan 5,625 $420.55 $2.4M Jun 2
May 22, 2026 Mark Brosius EVP Sell 10b5-1 plan 36 $442.92 $15.9K May 22

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
Jan 30, 2026 Gilbert Cisneros House Buy $1K–$15K Feb 13
Dec 29, 2025 Markwayne Mullin Senate Buy $15K–$50K Jan 16
Dec 10, 2025 Gilbert Cisneros House Buy $1K–$15K Jan 12
Nov 18, 2025 Gilbert Cisneros House Buy $1K–$15K Dec 15

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) 793,704 $315.6M 0.65% -7% Q2 2026
ARK Invest (Cathie Wood) 72,537 $31.3M ARKQ 1.8% — Nov 2
Bridgewater (Ray Dalio's firm) 19,324 $7.7M 0.03% +12% Q2 2026
ARK's position

ARK holds ISRG at 0.24% of its portfolio (#76 of 124) and has barely traded it in the past month.

OverShare of ARK then → nowNet bought or soldFrom tradingFrom price and other
1M since Oct 2 0.16% → 0.24% +$2.7M +0.02+0.06
3M since Aug 3 0.20% → 0.24% +$2.7M +0.02+0.02
1Y since Oct 31 0.13% → 0.24% +$14.6M +0.11+0.00
ARK's buying and selling runs
SideTradedSessions tradedShares≈ ValueOf each session's volumePrice over it
Buying Oct 21, 2026 1 6,411 $2.7M 0.1%
Buying Jul 17, 2026 1 7,975 $2.8M <0.1%
Buying Feb 5, 2026 1 11,960 $5.7M 0.4%

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 21, 2026 ARK Invest (Cathie Wood) Bought ARKQ 6,411 $2.7M source
Jul 17, 2026 ARK Invest (Cathie Wood) Bought ARKQ 7,975 $2.8M source
Feb 5, 2026 ARK Invest (Cathie Wood) Bought ARKQ 11,960 $5.7M source
Dec 12, 2025 ARK Invest (Cathie Wood) Bought ARKQ 6,212 $3.4M source
Oct 20, 2025 ARK Invest (Cathie Wood) Bought ARKQ 9,174 $4.2M 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