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Smart Money Score
Composite context from Form 4, 13F and congressional disclosures; not a forecast.
Of the 25 tracked institutions holding ISRG, 16 have a 3-year clone track record — 12 of them beat the S&P. Average holder's clone alpha: +3.5pt. It's a gauge of who owns the name, not just how many.
Among the 25 tracked institutional investors we monitor, ISRG (INTUITIVE SURGICAL INC) is held with a combined value of $50.91B across 113,310,611 shares. The largest holder is VANGUARD GROUP INC with a position worth $19.04B (0.28% of their portfolio). 2 funds opened new positions in the most recent quarter. 9 funds increased their holdings. 14 funds reduced their position.
Total Institutional Value
$50.91B
Total Shares Held
113,310,611
Institutional Holders
25
% of Shares Outstanding
32.1%
of 353.28M shares · SEC 2026-07-16
Days to Cover
1.4-1.3%
6.62M shares short · FINRA 2026-07-31
Tracked 13F institutions hold 32.1% of ISRG's shares outstanding. This is a floor: 13F filings arrive on a ~45-day lag and we track only a subset of institutional filers, so true institutional ownership is higher. Shares-outstanding is the latest SEC cover-page figure (as of 2026-07-16), not a live float.
Ranked by estimated dollars moved (share change × implied price). 13F data lags up to 45 days.
0
$0
35
$8.90M
Total Transactions
35
Last 12 months
| Date | Insider | Code | Type | Shares | Value |
|---|---|---|---|---|---|
| Aug 21, 2026 | Mark Brosius | S | Sale | 77 | $28.92K |
| Aug 20, 2026 | Mark Brosius | S | Sale | 77 | $30.52K |
| Aug 19, 2026 | Mark Brosius | S | Sale | 77 | $30.36K |
| Aug 18, 2026 | Mark Brosius | S | Sale | 77 | $30.34K |
| Aug 17, 2026 | Mark Brosius | S | Sale | 77 | $30.08K |
| Aug 11, 2026 | GARY S GUTHART | S | Sale | 10,000 | $4.00M |
| Aug 11, 2026 | Amy L Ladd | S | Sale | 72 | $28.30K |
| Aug 10, 2026 | Amy L Ladd | S | Sale | 400 | $151.60K |
| Jul 31, 2026 | Mark Brosius | S | Sale | 28 | $9.83K |
| Jul 30, 2026 | Mark Brosius | S | Sale | 28 | $9.71K |
Showing 10 of 35 transactions
| # | Fund | Value↓ | Portfolio % | Change |
|---|---|---|---|---|
| 1 | VANGUARD GROUP INC | $19.04B | 0.28% | +0.0% |
| 2 | BlackRock, Inc. | $11.94B | 0.18% | -0.2% |
| 3 | STATE STREET CORP | $6.39B | 0.19% | +1.4% |
| 4 | PRICE T ROWE ASSOCIATES INC /MD/ | $4.48B | 0.45% | -10.1% |
| 5 | FMR LLC | $1.69B | 0.07% | -22.4% |
| 6 | Fisher Asset Management, LLC | $1.56B | 0.46% | +1.7% |
| 7 | WELLINGTON MANAGEMENT GROUP LLP | $1.51B | 0.26% | -4.0% |
| 8 | BAILLIE GIFFORD & CO | $1.00B | 0.91% | -1.7% |
| 9 | Capital Research Global Investors | $617.07M | 0.09% | +60.5% |
| 10 | TWO SIGMA ADVISERS, LP | $604.06M | 1.17% | -16.6% |
| Member | Type | Date |
|---|---|---|
| Alan Armstrong | Buy | Mar 27, 2026 |
| Gilbert Cisneros | Buy | Jan 30, 2026 |
| Markwayne Mullin | Buy | Dec 29, 2025 |
| Gilbert Cisneros | Buy |
As of the latest SEC 13F filings, VANGUARD GROUP INC is the largest institutional holder of ISRG with a position worth $19.04B, representing 0.28% of their portfolio. In total, 25 institutional investors hold ISRG with a combined value of $50.91B.
In the most recent quarter, 2 funds opened a new position in ISRG. Additionally, 9 increased their holdings and 14 reduced their positions.
Institutional investors hold $50.91B worth of ISRG stock across 25 positions. The largest institutional holder is VANGUARD GROUP INC with $19.04B in holdings.
A 13F filing is a quarterly report required by the SEC from institutional investment managers with over $100 million in assets. It discloses their holdings in U.S. equities. For ISRG, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.
Get notified when hedge funds change their ISRG positions.
Alpha = the manager's 3-year clone return minus the S&P 500. A skilled roster is a stronger tell than a crowded one — though even skilled managers' edge doesn't reliably survive the 13F disclosure lag. Why →
| Dec 10, 2025 |
| Gilbert Cisneros | Buy | Nov 18, 2025 |
| Markwayne Mullin | Buy | Sep 24, 2025 |
| Josh Gottheimer | Sell | Sep 3, 2025 |
| Lisa McClain | Sell | Jul 16, 2025 |
Showing 8 of 39. STOCK Act disclosures lag up to 45 days.
Last Close
$369.25
2026-09-01
YTD
-34.3%
14% of 52-week range
