Microsoft Corporation
CH ˙ SWX ˙ US5949181045
SecurityCH:MSFT / Microsoft Corporation
InstitutionO'Brien Wealth Partners LLC
Latest Disclosed Ownership4,546 shares
Latest Disclosed Value $ 2,198,699
O'Brien Wealth Partners LLC reports 4.97% decrease in ownership of MSFT / Microsoft Corporation

On January 22, 2026 - O'Brien Wealth Partners LLC filed a 13F-HR form disclosing ownership of 4,546 shares of Microsoft Corporation (CH:MSFT) valued at $2,198,699 USD as of December 31, 2025. The entity filed a previous 13F-HR on October 22, 2025 disclosing 4,784 shares of Microsoft Corporation. This represents a change in shares of -4.97% 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)
2026-01-22 2025-12-31 13F MICROSOFT COM 594918104 4,546 -238 -4.97 2,199 -11.26 0.2907
2025-10-22 2025-09-30 13F MICROSOFT COM 594918104 4,784 2,915 155.97 2,478 166.63 0.3356
2025-07-09 2025-06-30 13F MICROSOFT COM 594918104 1,869 -426 -18.56 930 7.90 0.1459
2025-04-28 2025-03-31 13F MICROSOFT COM 594918104 2,295 1,023 80.42 862 60.63 0.1604
2025-01-28 2024-12-31 13F MICROSOFT COM 594918104 1,272 0 0.00 536 -2.01 0.0966
2024-10-23 2024-09-30 13F MICROSOFT COM 594918104 1,272 -80 -5.92 547 -9.44 0.1073
2024-07-22 2024-06-30 13F MICROSOFT COM 594918104 1,352 153 12.76 604 19.84 0.1359
2024-04-18 2024-03-31 13F MICROSOFT COM 594918104 1,199 -816 -40.50 504 -33.42 0.1167
2024-01-25 2023-12-31 13F MICROSOFT COM 594918104 2,015 87 4.51 758 24.51 0.1978
2023-10-24 2023-09-30 13F MICROSOFT COM 594918104 1,928 0 0.00 609 -7.32 0.1746
2023-08-07 2023-06-30 13F MICROSOFT COM 594918104 1,928 -126 -6.13 657 10.81 0.1933
2023-05-08 2023-03-31 13F MICROSOFT COM 594918104 2,054 -466 -18.49 592 -1.99 0.1866
2023-02-10 2022-12-31 13F MICROSOFT COM 594918104 2,520 667 36.00 604 39.81 0.2400
2022-11-14 2022-09-30 13F MICROSOFT COM 594918104 1,853 -328 -15.04 432 -22.86 0.1818
2022-07-22 2022-06-30 13F MICROSOFT COM 594918104 2,181 -346 -13.69 560 -16.29 0.2339
2022-05-10 2022-03-31 13F MICROSOFT COM 594918104 2,527 642 34.06 669 16.55 0.2655
2022-02-09 2021-12-31 13F MICROSOFT COM 594918104 1,885 -673 -26.31 574 -22.33 0.1992
2021-10-07 2021-09-30 13F MICROSOFT COM 594918104 2,558 -3,346 -56.67 739 -54.97 0.2582
2021-07-12 2021-06-30 13F MICROSOFT COM 594918104 5,904 1,183 25.06 1,641 37.32 0.5428
2021-04-13 2021-03-31 13F MICROSOFT COM 594918104 4,721 -573 -10.82 1,195 2.75 0.3959
2021-01-11 2020-12-31 13F MICROSOFT COM 594918104 5,294 240 4.75 1,163 9.30 0.4202
2020-10-09 2020-09-30 13F MICROSOFT COM 594918104 5,054 96 1.94 1,064 0.09 0.4347
2020-07-10 2020-06-30 13F MICROSOFT COM 594918104 4,958 683 15.98 1,063 60.09 0.4427
2020-04-03 2020-03-31 13F MICROSOFT COM 594918104 4,275 -1,857 -30.28 664 -31.90 0.3730
2020-01-07 2019-12-31 13F MICROSOFT COM 594918104 6,132 1,711 38.70 975 58.54 0.6965
2019-10-04 2019-09-30 13F MICROSOFT COM 594918104 4,421 2,575 139.49 615 143.08 0.4830
2019-07-08 2019-06-30 13F MICROSOFT COM 594918104 1,846 1,846 253 0.1851
2019-04-05 2019-03-31 13F MICROSOFT COM 594918104 0 -2,014 -100.00 0 -100.00
2019-01-17 2018-12-31 13F MICROSOFT COM 594918104 2,014 288 16.69 212 7.61 0.1451
2018-10-09 2018-09-30 13F MICROSOFT COM 594918104 1,726 1,416 456.77 197 535.48 0.1280
2018-07-11 2018-06-30 13F MICROSOFT COM 594918104 310 -470 -60.26 31 -56.34 0.0231
2018-04-11 2018-03-31 13F MICROSOFT COM 594918104 780 780 71 0.0489
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.