Intuitive Surgical, Inc.
US ˙ NasdaqGS ˙ US46120E6023

SecurityISRG / Intuitive Surgical, Inc.
InstitutionBoston Trust Walden Corp
Latest Disclosed Ownership13,722 shares
Latest Disclosed Value $ 6,325,705
Boston Trust Walden Corp reports 1.79% decrease in ownership of ISRG / Intuitive Surgical, Inc.

On April 24, 2026 - Boston Trust Walden Corp filed a 13F-HR form disclosing ownership of 13,722 shares of Intuitive Surgical, Inc. (US:ISRG) valued at $6,325,705 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 28, 2026 disclosing 13,972 shares of Intuitive Surgical, Inc.. This represents a change in shares of -1.79% during the quarter. The current value of the position is $5,588,833 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-04-24 2026-03-31 13F INTUITIVE SURGICAL COMMON STOCK 46120E602 13,722 -250 -1.79 6,326 -20.07 0.0311
2026-01-28 2025-12-31 13F INTUITIVE SURGICAL COMMON STOCK 46120E602 13,972 -170 -1.20 7,913 25.13 0.0597
2025-10-17 2025-09-30 13F INTUITIVE SURGICAL COMMON STOCK 46120E602 14,142 -109 -0.76 6,325 -18.34 0.0464
2025-07-28 2025-06-30 13F INTUITIVE SURGICAL COMMON STOCK 46120E602 14,251 -61 -0.43 7,744 9.26 0.0552
2025-04-21 2025-03-31 13F INTUITIVE SURGICAL COMMON STOCK 46120E602 14,312 -365 -2.49 7,088 -7.47 0.0518
2025-01-24 2024-12-31 13F INTUITIVE SURGICAL COMMON STOCK 46120E602 14,677 -684 -4.45 7,661 1.51 0.0538
2024-10-24 2024-09-30 13F INTUITIVE SURGICAL COMMON STOCK 46120E602 15,361 -1,581 -9.33 7,546 0.13 0.0525
2024-07-19 2024-06-30 13F INTUITIVE SURGICAL COMMON STOCK 46120E602 16,942 -210 -1.22 7,537 10.09 0.0559
2024-04-22 2024-03-31 13F INTUITIVE SURGICAL COMMON STOCK 46120E602 17,152 -15 -0.09 6,845 18.20 0.0488
2024-01-24 2023-12-31 13F INTUITIVE SURGICAL COMMON STOCK 46120E602 17,167 -1,358 -7.33 5,791 6.96 0.0437
2023-10-18 2023-09-30 13F INTUITIVE SURGICAL COMMON STOCK 46120E602 18,525 185 1.01 5,415 -13.67 0.0454
2023-07-24 2023-06-30 13F INTUITIVE SURGICAL COMMON STOCK 46120E602 18,340 -1,209 -6.18 6,271 25.57 0.0514
2023-04-19 2023-03-31 13F INTUITIVE SURGICAL COMMON STOCK 46120E602 19,549 -965 -4.70 4,994 -8.25 0.0431
2023-01-20 2022-12-31 13F INTUITIVE SURGICAL COMMON STOCK 46120E602 20,514 -4,382 -17.60 5,443 16.63 0.0479
2022-10-19 2022-09-30 13F INTUITIVE SURGICAL COMMON STOCK 46120E602 24,896 -16,482 -39.83 4,667 -43.80 0.0462
2022-07-22 2022-06-30 13F INTUITIVE SURGICAL COMMON STOCK 46120E602 41,378 -6,981 -14.44 8,305 -43.07 0.0785
2022-04-20 2022-03-31 13F INTUITIVE SURGICAL COMMON STOCK 46120E602 48,359 -69,258 -58.88 14,589 -65.48 0.1205
2022-01-21 2021-12-31 13F INTUITIVE SURGICAL COMMON STOCK 46120E602 117,617 77,506 193.23 42,259 5.97 0.3393
2021-10-25 2021-09-30 13F INTUITIVE SURGICAL COMMON STOCK 46120E602 40,111 1,159 2.98 39,877 11.32 0.3531
2021-07-22 2021-06-30 13F INTUITIVE SURGICAL COMMON STOCK 46120E602 38,952 1,224 3.24 35,822 28.49 0.3185
2021-04-21 2021-03-31 13F INTUITIVE SURGICAL COMMON STOCK 46120E602 37,728 441 1.18 27,879 -8.61 0.2700
2021-01-15 2020-12-31 13F INTUITIVE SURGICAL COMMON STOCK 46120E602 37,287 -7,825 -17.35 30,504 -4.70 0.3254
2020-10-14 2020-09-30 13F INTUITIVE SURGICAL COMMON STOCK 46120E602 45,112 864 1.95 32,008 26.95 0.3986
2020-07-23 2020-06-30 13F INTUITIVE SURGICAL COMMON STOCK 46120E602 44,248 1,043 2.41 25,214 17.84 0.3405
2020-04-24 2020-03-31 13F/A-1 INTUITIVE SURGICAL COMMON STOCK 46120E602 43,205 43,205 21,396 0.3410
2020-04-21 2020-03-31 13F INTUITIVE SURGICAL COMMON STOCK 46120E602 43,205 21,396
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.