Microsoft Corporation
MX ˙ BMV ˙ US5949181045
SecurityMX:MSFT / Microsoft Corporation
InstitutionPenbrook Management LLC
Latest Disclosed Ownership22,245 shares
Latest Disclosed Value $ 8,234,431
Penbrook Management LLC reports 2.22% decrease in ownership of MSFT / Microsoft Corporation

On April 21, 2026 - Penbrook Management LLC filed a 13F-HR form disclosing ownership of 22,245 shares of Microsoft Corporation (MX:MSFT) valued at $8,234,431 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 6, 2026 disclosing 22,750 shares of Microsoft Corporation. This represents a change in shares of -2.22% 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)
2026-04-21 2026-03-31 13F MICROSOFT CORP COM Stock 594918104 22,245 -505 -2.22 8,234 -25.16 6.2355
2026-01-06 2025-12-31 13F MICROSOFT CORP COM Stock 594918104 22,750 -1,555 -6.40 11,002 -12.60 7.5890
2025-10-22 2025-09-30 13F MICROSOFT CORP COM Stock 594918104 24,305 -675 -2.70 12,589 1.31 8.7895
2025-07-28 2025-06-30 13F/A-1 MICROSOFT CORP COM Stock 594918104 24,980 -1,027 -3.95 12,425 27.28 9.3433
2025-07-25 2025-06-30 13F MICROSOFT Stock 594918104 26,007 0 9,763 7.3795
2025-04-01 2025-03-31 13F MICROSOFT Stock 594918104 26,007 -796 -2.97 9,763 -13.59 7.3795
2025-01-23 2024-12-31 13F MICROSOFT Stock 594918104 26,803 -325 -1.20 11,297 -3.22 7.7064
2024-10-15 2024-09-30 13F MICROSOFT Stock 594918104 27,128 -40 -0.15 11,673 -3.86 7.5886
2024-07-24 2024-06-30 13F MICROSOFT Stock 594918104 27,168 -445 -1.61 12,143 4.52 7.4117
2024-04-18 2024-03-31 13F MICROSOFT Stock 594918104 27,613 -475 -1.69 11,617 9.99 7.2003
2024-01-16 2023-12-31 13F MICROSOFT Stock 594918104 28,088 -830 -2.87 10,562 15.68 7.0962
2023-10-10 2023-09-30 13F MICROSOFT Stock 594918104 28,918 -155 -0.53 9,131 -7.78 6.6907
2023-07-17 2023-06-30 13F MICROSOFT Stock 594918104 29,073 -335 -1.14 9,901 16.77 7.1758
2023-04-20 2023-03-31 13F MICROSOFT Stock 594918104 29,408 -100 -0.34 8,478 19.81 6.4963
2023-01-24 2022-12-31 13F MICROSOFT Stock 594918104 29,508 -3,190 -9.76 7,077 -7.08 6.0314
2022-10-31 2022-09-30 13F MICROSOFT Stock 594918104 32,698 57 0.17 7,615 -9.16 6.5536
2022-07-29 2022-06-30 13F MICROSOFT Stock 594918104 32,641 -1,990 -5.75 8,383 -21.49 6.6109
2022-04-26 2022-03-31 13F MICROSOFT CORP COM Stock 594918104 34,631 -2,315 -6.27 10,677 -14.08 6.9264
2022-01-10 2021-12-31 13F MICROSOFT Stock 594918104 36,946 -840 -2.22 12,426 16.64 7.4871
2021-10-26 2021-09-30 13F MICROSOFT CORP COM Stock 594918104 37,786 -40 -0.11 10,653 3.96 6.6201
2021-07-27 2021-06-30 13F MICROSOFT CORP COM COM 594918104 37,826 -4,700 -11.05 10,247 2.20 6.1421
2021-05-06 2021-03-31 13F/A-2 MICROSOFT Stock 594918104 42,526 50 0.12 10,026 6.12 7.2155
2021-05-05 2021-03-31 13F/A-1 MICROSOFT Stock 594918104 42,526 0 10,026 7.2730
2021-04-16 2021-03-31 13F MICROSOFT Stock 594918104 43,896 420 6,923 8.0600
2022-04-25 2020-12-31 13F/A-1 MICROSOFT CORP COM Stock 594918104 42,476 -400 -0.93 9,448 4.77 7.2775
2021-01-27 2020-12-31 13F MICROSOFT COM 594918104 43,476 600 9,670 6.8173
2020-10-23 2020-09-30 13F MICROSOFT COM 594918104 42,876 1,320 3.18 9,018 6.63 7.8175
2020-07-28 2020-06-30 13F MICROSOFT COM 594918104 41,556 -250 -0.60 8,457 28.27 8.3186
2020-04-14 2020-03-31 13F MICROSOFT COM 594918104 41,806 -475 -1.12 6,593 -1.12 8.4428
2020-01-16 2019-12-31 13F MICROSOFT COM 594918104 42,281 -558 -1.30 6,668 11.95 6.4971
2019-10-11 2019-09-30 13F MICROSOFT COM 594918104 42,839 -2,341 -5.18 5,956 -1.59 6.4624
2019-07-15 2019-06-30 13F MICROSOFT CORP COM COM 594918104 45,180 -35 -0.08 6,052 13.48 6.4931
2019-04-24 2019-03-31 13F MICROSOFT COM 594918104 45,215 600 1.34 5,333 17.67 5.5452
2019-02-01 2018-12-31 13F MICROSOFT COM 594918104 44,615 -20 -0.04 4,532 -11.22 5.1720
2018-10-23 2018-09-30 13F MICROSOFT COM 594918104 44,635 -80 -0.18 5,105 15.79 4.8896
2018-07-30 2018-06-30 13F MICROSOFT COM 594918104 44,715 -100 -0.22 4,409 7.80 4.2409
2018-04-27 2018-03-31 13F MICROSOFT COM 594918104 44,815 -7,000 -13.51 4,090 -7.72 4.0895
2018-02-21 2017-12-31 13F MICROSOFT COM 594918104 51,815 -18,870 -26.70 4,432 8.84 3.9902
2016-10-27 2016-09-30 13F MICROSOFT COM 594918104 70,685 -775 -1.08 4,072 11.35 4.3877
2016-08-05 2016-06-30 13F MICROSOFT COM 594918104 71,460 -6,900 -8.81 3,657 -15.50 4.0321
2016-04-21 2016-03-31 13F MICROSOFT COM 594918104 78,360 -3,249 -3.98 4,328 -4.42 4.7651
2016-01-29 2015-12-31 13F MICROSOFT COM 594918104 81,609 -150 -0.18 4,528 25.15 4.6438
2015-11-12 2015-09-30 13F MICROSOFT CORP COM COM 594918104 81,759 -435 -0.53 3,618 -0.28 3.8312
2015-08-04 2015-06-30 13F MICROSOFT COM 594918104 82,194 -500 -0.60 3,628 7.94 3.4454
2015-04-27 2015-03-31 13F MICROSOFT COM 594918104 82,694 82,694 0.61 3,361 -7.36 2.9855
2015-01-28 2014-12-31 13F MICROSOFT COM 594918104 0 -80,144 -100.00 0 -100.00
2014-10-16 2014-09-30 13F MICROSOFT COM 594918104 80,144 -1,200 -1.48 3,716 9.55 3.4264
2014-08-04 2014-06-30 13F MICROSOFT COM 594918104 81,344 -400 -0.49 3,392 1.22 2.9955
2014-05-07 2014-03-31 13F/A-1 MICROSOFT COM 594918104 81,744 0 0.00 3,351 9.58 3.1688
2014-05-02 2014-03-31 13F MICROSOFT COM 594918104 81,744 3,058
2014-03-25 2013-12-31 13F MICROSOFT COM 594918104 81,744 81,744 3,058 2.9674
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.