Intuitive Surgical, Inc.
MX ˙ BMV ˙ US46120E6023
SecurityMX:ISRG / Intuitive Surgical, Inc.
InstitutionOak Asset Management, LLC
Latest Disclosed Ownership5,560 shares
Latest Disclosed Value $ 2,563,104
Oak Asset Management, LLC reports 2.20% decrease in ownership of ISRG / Intuitive Surgical, Inc.

On April 15, 2026 - Oak Asset Management, LLC filed a 13F-HR form disclosing ownership of 5,560 shares of Intuitive Surgical, Inc. (MX:ISRG) valued at $2,563,104 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 14, 2026 disclosing 5,685 shares of Intuitive Surgical, Inc.. This represents a change in shares of -2.20% during the quarter.

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.

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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)
2026-04-15 2026-03-31 13F INTUITIVE SURGICAL COM NEW 46120E602 5,560 -125 -2.20 2,563 -20.38 0.8825
2026-01-14 2025-12-31 13F INTUITIVE SURGICAL COM NEW 46120E602 5,685 0 0.00 3,220 26.63 1.0981
2025-10-20 2025-09-30 13F INTUITIVE SURGICAL COM NEW 46120E602 5,685 -1,775 -23.79 2,543 -37.28 0.8697
2025-07-11 2025-06-30 13F INTUITIVE SURGICAL COM NEW 46120E602 7,460 -100 -1.32 4,054 8.25 1.4530
2025-04-11 2025-03-31 13F INTUITIVE SURGICAL COM NEW 46120E602 7,560 -350 -4.42 3,744 -9.30 1.3723
2025-01-14 2024-12-31 13F INTUITIVE SURGICAL COM NEW 46120E602 7,910 -75 -0.94 4,129 5.25 1.5271
2024-10-07 2024-09-30 13F INTUITIVE SURGICAL COM NEW 46120E602 7,985 0 0.00 3,923 10.42 1.3889
2024-07-12 2024-06-30 13F INTUITIVE SURGICAL COM NEW 46120E602 7,985 -100 -1.24 3,552 10.11 1.3006
2024-04-18 2024-03-31 13F INTUITIVE SURGICAL COM NEW 46120E602 8,085 -180 -2.18 3,227 15.71 1.2070
2024-01-23 2023-12-31 13F INTUITIVE SURGICAL COM NEW 46120E602 8,265 -200 -2.36 2,788 12.69 1.1091
2023-10-26 2023-09-30 13F INTUITIVE SURGICAL COM NEW 46120E602 8,465 -300 -3.42 2,474 -17.45 1.0621
2023-08-08 2023-06-30 13F INTUITIVE SURGICAL COM NEW 46120E602 8,765 0 0.00 2,997 33.85 1.2419
2023-04-14 2023-03-31 13F INTUITIVE SURGICAL COM NEW 46120E602 8,765 -50 -0.57 2,239 -4.28 0.9653
2023-02-08 2022-12-31 13F INTUITIVE SURGICAL COM NEW 46120E602 8,815 -828 -8.59 2,339 29.44 1.0504
2022-10-19 2022-09-30 13F INTUITIVE SURGICAL COM NEW 46120E602 9,643 9,643 1,807 0.8766
2022-07-15 2022-06-30 13F INTUITIVE SURGICAL COM NEW 46120E602 0 -9,505 -100.00 0 -100.00
2022-04-22 2022-03-31 13F INTUITIVE SURGICAL COM NEW 46120E602 9,505 -247 -2.53 2,867 -18.18 1.1346
2022-02-04 2021-12-31 13F INTUITIVE SURGICAL COM NEW 46120E602 9,752 -100 -1.02 3,504 7.03 1.3388
2021-10-21 2021-09-30 13F INTUITIVE SURGICAL COM NEW 46120E602 9,852 6,568 200.00 3,274 8.41 1.3610
2021-07-14 2021-06-30 13F INTUITIVE SURGICAL COM NEW 46120E602 3,284 3,284 3,020 1.2701
2021-04-27 2021-03-31 13F INTUITIVE SURGICAL COM NEW 46120E602 0 -3,334 -100.00 0 -100.00
2021-01-20 2020-12-31 13F INTUITIVE SURGICAL COM NEW 46120E602 3,334 0 0.00 2,728 11.62 1.3290
2020-10-27 2020-09-30 13F INTUITIVE SURGICAL COM NEW 46120E602 3,334 -100 -2.91 2,444 24.89 1.2916
2020-07-09 2020-06-30 13F INTUITIVE SURGICAL COM NEW 46120E602 3,434 0 0.00 1,957 15.05 1.1603
2020-05-08 2020-03-31 13F INTUITIVE SURGICAL COM NEW 46120E602 3,434 0 0.00 1,701 -16.21 1.2362
2020-01-09 2019-12-31 13F INTUITIVE SURGICAL COM NEW 46120E602 3,434 0 0.00 2,030 9.49 1.1299
2019-10-30 2019-09-30 13F INTUITIVE SURGICAL COM NEW 46120E602 3,434 0 0.00 1,854 0.82 1.1175
2019-07-25 2019-06-30 13F INTUITIVE SURGICAL COM NEW 46120E602 3,434 -855 -19.93 1,839 -24.85 1.1412
2019-05-06 2019-03-31 13F INTUITIVE SURGICAL COM NEW 46120E602 4,289 -107 -2.43 2,447 16.25 1.6207
2019-01-17 2018-12-31 13F INTUITIVE SURGICAL COM NEW 46120E602 4,396 60 1.38 2,105 -15.43 1.5574
2018-10-19 2018-09-30 13F INTUITIVE SURGICAL COM NEW 46120E602 4,336 0 0.00 2,489 19.95 1.5087
2018-08-01 2018-06-30 13F INTUITIVE SURGICAL COM NEW 46120E602 4,336 2,795 181.38 2,075 226.26 1.4164
2018-04-23 2018-03-31 13F INTUITIVE SURGICAL COM NEW 46120E602 1,541 -50 -3.14 636 9.47 0.4914
2018-02-13 2017-12-31 13F INTUITIVE SURGICAL COM NEW 46120E602 1,591 1,591 581 0.4424
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.