Stock Trading Canary

United States · SEC Form 4 · Snapshot date: 2026-10-18 · Built: 2026-10-18 · 中文

← United States · Coverage record

US · SEC FORM 4

INTUITIVE SURGICAL INC

ISRG · Nasdaq · CIK 0001035267 · Healthcare · Medical Instruments & Supplies

INSIDER SIGNAL

No active buy signal

0 qualifying P purchase groups
in the current 180-day scoring window

55 Form 4 transaction lines observed in the same window
35 sales · 20 option, withholding, award, gift or other lines

Last qualifying purchaseNo qualifying purchase is present in the local Form 4 history.

WHY NO ACTIVE SIGNAL?

Purchase activityNone
Recent buyingNone
Recent salesHigh
Buy signal statusInactive
Score anatomy

No score is calculated because there is no qualifying purchase in the active window. Unavailable inputs are not treated as zero or as a bearish signal.

ClusterNot calculated
Purchase sizeNot calculated
RoleNot calculated
RecencyNot calculated
ConvictionNot calculated

Why is there no score?

  • No qualifying open-market purchase supplies cluster, size, role, recency or conviction inputs.
  • Sales and other Form 4 activity remain visible as context and do not create a negative score.

Sales and other Form 4 activity are shown separately and do not create a negative buy signal. Absence of buying is not scored as bearish.

Insider activity timeline

Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.

AprMayJunJulAugSepOct
Brosius MarkEVP & Chief Mfg and Supply Cha
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
LOEB GARYEVP & Chief Legal and Complian
▼▼○○
Rosa David J.Chief Executive Officer (CEO)
○○○○
Widman FredrikVP Corporate Controller
○▼
Ladd Amy LDirector
▼▼
Jeddi ImanSVP & GM da Vinci Platforms &
○▼
● Purchase▼ Sale○ Other

Showing the six most active owners; 2 additional owner(s) remain in Form 4 evidence.

Purchase breadth, concentration & cluster buying

These modules activate when qualifying purchases enter the 180-day research window.

SIGNAL HISTORY

No recorded active-signal snapshot

Scores are archived only when the company qualifies for a published US buy-signal snapshot.—

Recent Form 4 activity

0Purchases
83Sales
141Other Form 4 lines
84SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING35 sale line(s) · context only
OTHER20 exercise / withholding / award / gift / other lines
10b5-1 / PLANNEDNot assessed

P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.

Market context

Market context has not been captured for this ticker yet. The daily market-context job processes the US universe in rotating batches.

Short interest

Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.

Shares short
7,411,662
Previous report
8,117,017
Avg daily volume
2,352,277
Days to cover
3.1

FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.

Historical equity purchases

No qualifying code P equity purchase is present in the local Form 4 history.

Form 4 evidence

224 transaction lines in the latest 365-day window; 1,571 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-10WADORS PATRICIA LOption exercise / conversion (M)Common Stock2,140USD 0.00USD 0SEC filing ↗
2026-10-10WADORS PATRICIA LTax withholding (F)Common Stock1,062USD 423.96USD 450,246SEC filing ↗
2026-10-10LOEB GARYOption exercise / conversion (M)Common Stock2,612USD 0.00USD 0SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-10WADORS PATRICIA LOption exercise / conversion (M)Common Stock2,140USD 0.00USD 0SEC filing ↗
2026-10-10WADORS PATRICIA LTax withholding (F)Common Stock1,062USD 423.96USD 450,246SEC filing ↗
2026-10-10LOEB GARYOption exercise / conversion (M)Common Stock2,612USD 0.00USD 0SEC filing ↗
2026-10-10LOEB GARYTax withholding (F)Common Stock1,296USD 423.96USD 549,452SEC filing ↗
2026-09-15Widman FredrikSale (S)Common Stock1,089USD 374.44USD 407,765SEC filing ↗
2026-09-15Widman FredrikOption exercise / conversion (M)Common Stock1,089USD 94.52USD 102,937SEC filing ↗
2026-09-11Brosius MarkSale (S)Common Stock25USD 365.79USD 9,145SEC filing ↗
2026-09-10Brosius MarkSale (S)Common Stock23USD 347.66USD 7,996SEC filing ↗
2026-09-09Brosius MarkSale (S)Common Stock23USD 350.20USD 8,055SEC filing ↗
2026-09-08Brosius MarkSale (S)Common Stock46USD 361.23USD 16,617SEC filing ↗
2026-08-21Brosius MarkSale (S)Common Stock77USD 375.57USD 28,919SEC filing ↗
2026-08-20Brosius MarkSale (S)Common Stock77USD 396.37USD 30,520SEC filing ↗
2026-08-19Brosius MarkSale (S)Common Stock77USD 394.26USD 30,358SEC filing ↗
2026-08-18Brosius MarkSale (S)Common Stock77USD 394.00USD 30,338SEC filing ↗
2026-08-17Brosius MarkSale (S)Common Stock77USD 390.67USD 30,082SEC filing ↗
2026-08-11GUTHART GARY SSale (S)Common Stock10,000USD 400.00USD 4,000,000SEC filing ↗
2026-08-11Ladd Amy LSale (S)Common Stock72USD 393.10USD 28,303SEC filing ↗
2026-08-10Ladd Amy LSale (S)Common Stock400USD 379.00USD 151,600SEC filing ↗
2026-08-10LOEB GARYSale (S)Common Stock400USD 379.00USD 151,600SEC filing ↗
2026-07-31Brosius MarkSale (S)Common Stock28USD 351.00USD 9,828SEC filing ↗
2026-07-30Brosius MarkSale (S)Common Stock28USD 346.83USD 9,711SEC filing ↗
2026-07-29Brosius MarkSale (S)Common Stock28USD 360.21USD 10,086SEC filing ↗
2026-07-28Brosius MarkSale (S)Common Stock28USD 365.58USD 10,236SEC filing ↗
2026-07-27Brosius MarkSale (S)Common Stock28USD 344.00USD 9,632SEC filing ↗
2026-07-10Rosa David J.Option exercise / conversion (M)Common Stock1,910USD 0.00USD 0SEC filing ↗
2026-07-10Rosa David J.Tax withholding (F)Common Stock947USD 411.55USD 389,738SEC filing ↗
2026-06-12Brosius MarkSale (S)Common Stock25USD 414.13USD 10,353SEC filing ↗
2026-06-11Brosius MarkSale (S)Common Stock23USD 412.16USD 9,480SEC filing ↗
2026-06-10Rosa David J.Option exercise / conversion (M)Common Stock1,358USD 0.00USD 0SEC filing ↗
2026-06-10Rosa David J.Tax withholding (F)Common Stock674USD 426.61USD 287,535SEC filing ↗

Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.

Snapshot & identity

Snapshot date2026-10-18
Ranking versionUS-v1.2
Data qualityPASS ELIGIBLE · —
TickerISRG
CIK0001035267
SectorHealthcare
IndustryMedical Instruments & Supplies Yahoo Finance
SEC SIC3842 Orthopedic, Prosthetic & Surgical Appliances & Supplies
ExchangeNasdaq

Data coverage

Local Form 4 history1,571 transaction lines from 2020-01-28 to 2026-10-10
0 P purchase lines · 521 S sale lines · 1,050 other lines
SEC company submissionsOpen SEC filings ↗

Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.