Microsoft Corporation
CH ˙ SWX ˙ US5949181045
SecurityCH:MSFT / Microsoft Corporation
InstitutionIslay Capital Management, Llc
Latest Disclosed Ownership8,745 shares
Latest Disclosed Value $ 3,237,052
Islay Capital Management, Llc reports 1.53% increase in ownership of MSFT / Microsoft Corporation

On May 14, 2026 - Islay Capital Management, Llc filed a 13F-HR form disclosing ownership of 8,745 shares of Microsoft Corporation (CH:MSFT) valued at $3,237,052 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 8,613 shares of Microsoft Corporation. This represents a change in shares of 1.53% 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)
2026-05-14 2026-03-31 13F MICROSOFT COM 594918104 8,745 132 1.53 3,237 -22.28 1.6434
2026-02-13 2025-12-31 13F MICROSOFT COM 594918104 8,613 -144 -1.64 4,165 -8.16 2.4486
2025-11-12 2025-09-30 13F MICROSOFT COM 594918104 8,757 640 7.88 4,535 12.34 2.5935
2025-08-08 2025-06-30 13F MICROSOFT COM 594918104 8,117 35 0.43 4,038 33.06 2.6030
2025-05-14 2025-03-31 13F MICROSOFT COM 594918104 8,082 -172 -2.08 3,034 -12.79 2.0482
2025-02-13 2024-12-31 13F MICROSOFT COM 594918104 8,254 -368 -4.27 3,479 -6.23 2.4156
2024-11-07 2024-09-30 13F/A-1 MICROSOFT COM 594918104 8,622 0 0.00 3,710 -3.71 2.4879
2024-11-07 2024-09-30 13F MICROSOFT COM 594918104 8,622 0 3,710 2.4879
2024-08-13 2024-06-30 13F MICROSOFT COM 594918104 8,622 -246 -2.77 3,854 3.30 2.7708
2024-05-14 2024-03-31 13F MICROSOFT COM 594918104 8,868 244 2.83 3,731 15.05 2.7772
2024-02-05 2023-12-31 13F MICROSOFT COM 594918104 8,624 62 0.72 3,243 19.94 2.5045
2023-11-02 2023-09-30 13F MICROSOFT COM 594918104 8,562 -295 -3.33 2,703 -10.38 2.2638
2023-08-07 2023-06-30 13F MICROSOFT COM 594918104 8,857 71 0.81 3,016 19.07 2.6592
2023-05-10 2023-03-31 13F MICROSOFT COM 594918104 8,786 -1,577 -15.22 2,533 1.93 2.4740
2023-01-31 2022-12-31 13F MICROSOFT COM 594918104 10,363 64 0.62 2,485 3.58 2.8493
2022-10-21 2022-09-30 13F MICROSOFT COM 594918104 10,299 -1,250 -10.82 2,399 -19.12 2.8494
2022-08-08 2022-06-30 13F MICROSOFT COM 594918104 11,549 -206 -1.75 2,966 -18.16 3.0901
2022-04-28 2022-03-31 13F MICROSOFT COM 594918104 11,755 -39 -0.33 3,624 -8.65 3.0158
2022-02-08 2021-12-31 13F MICROSOFT COM 594918104 11,794 -61 -0.51 3,967 18.70 2.9994
2021-10-18 2021-09-30 13F MICROSOFT COM 594918104 11,855 136 1.16 3,342 5.26 2.5722
2021-08-02 2021-06-30 13F Microsoft COMMON 594918104 11,719 -808 -6.45 3,175 7.52 2.5689
2021-05-11 2021-03-31 13F Microsoft COMMON 594918104 12,527 -326 -2.54 2,953 3.29 2.4358
2021-01-26 2020-12-31 13F Microsoft COMMON 594918104 12,853 0 0.00 2,859 5.77 2.5802
2020-11-12 2020-09-30 13F Microsoft COMMON 594918104 12,853 0 0.00 2,703 3.33 2.7844
2020-08-04 2020-06-30 13F Microsoft COMMON 594918104 12,853 -481 -3.61 2,616 24.39 3.0428
2020-05-06 2020-03-31 13F Microsoft COMMON 594918104 13,334 -4,394 -24.79 2,103 -24.79 2.7531
2020-02-11 2019-12-31 13F Microsoft COMMON 594918104 17,728 17,728 2,796 2.6800
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.