Microsoft Corporation
BG ˙ BUL ˙ US5949181045
SecurityBG:MSF / Microsoft Corporation
InstitutionAureus Asset Management, LLC
Latest Disclosed Ownership194,078 shares
Latest Disclosed Value $ 71,841,948
Aureus Asset Management, LLC reports 2.57% decrease in ownership of MSF / Microsoft Corporation

On May 13, 2026 - Aureus Asset Management, LLC filed a 13F-HR form disclosing ownership of 194,078 shares of Microsoft Corporation (BG:MSF) valued at $71,841,948 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 199,198 shares of Microsoft Corporation. This represents a change in shares of -2.57% 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)
2026-05-13 2026-03-31 13F Microsoft Stock 594918104 194,078 -5,120 -2.57 71,842 -25.43 4.7854
2026-02-17 2025-12-31 13F Microsoft Stock 594918104 199,198 -1,133 -0.57 96,336 -7.16 6.1366
2025-11-17 2025-09-30 13F Microsoft Stock 594918104 200,331 -8,920 -4.26 103,761 -0.31 6.7563
2025-08-14 2025-06-30 13F Microsoft Stock 594918104 209,251 2,860 1.39 104,083 34.34 6.6579
2025-05-15 2025-03-31 13F Microsoft Stock 594918104 206,391 -1,286 -0.62 77,477 -11.49 5.4286
2025-02-14 2024-12-31 13F Microsoft Stock 594918104 207,677 3,374 1.65 87,536 -0.43 5.6557
2024-11-14 2024-09-30 13F Microsoft Stock 594918104 204,303 -1,433 -0.70 87,912 -4.40 5.7509
2024-08-13 2024-06-30 13F Microsoft Stock 594918104 205,736 -3,729 -1.78 91,954 4.34 6.4268
2024-05-13 2024-03-31 13F Microsoft Stock 594918104 209,465 -461 -0.22 88,126 11.64 6.0160
2024-02-14 2023-12-31 13F Microsoft Stock 594918104 209,926 -1,384 -0.65 78,941 18.31 5.7730
2023-11-13 2023-09-30 13F Microsoft Stock 594918104 211,310 -6,037 -2.78 66,721 -9.85 5.3588
2023-08-11 2023-06-30 13F Microsoft Stock 594918104 217,347 -10,620 -4.66 74,015 12.62 5.5476
2023-05-12 2023-03-31 13F Microsoft Stock 594918104 227,967 1,096 0.48 65,723 20.79 5.1992
2023-02-14 2022-12-31 13F Microsoft Stock 594918104 226,871 2,136 0.95 54,408 3.95 4.6989
2022-11-14 2022-09-30 13F Microsoft Stock 594918104 224,735 -2,377 -1.05 52,341 -10.27 4.5591
2022-08-15 2022-06-30 13F Microsoft Stock 594918104 227,112 25,979 12.92 58,329 -5.94 4.7070
2022-05-12 2022-03-31 13F Microsoft Stock 594918104 201,133 3,222 1.63 62,011 -6.84 4.1208
2022-02-14 2021-12-31 13F Microsoft Stock 594918104 197,911 -1,006 -0.51 66,561 18.69 4.1096
2021-11-12 2021-09-30 13F Microsoft Stock 594918104 198,917 2,029 1.03 56,079 5.14 3.6887
2021-08-16 2021-06-30 13F Microsoft Stock 594918104 196,888 5,882 3.08 53,337 18.44 3.4273
2021-05-14 2021-03-31 13F Microsoft Stock 594918104 191,006 7,099 3.86 45,033 10.09 3.4943
2021-02-16 2020-12-31 13F Microsoft Stock 594918104 183,907 5,237 2.93 40,905 8.85 3.4462
2020-11-13 2020-09-30 13F Microsoft Stock 594918104 178,670 745 0.42 37,580 3.78 3.5560
2020-08-11 2020-06-30 13F Microsoft Stock 594918104 177,925 2,878 1.64 36,210 31.16 3.9486
2020-05-14 2020-03-31 13F Microsoft Stock 594918104 175,047 86,801 98.36 27,607 98.38 3.8290
2020-02-12 2019-12-31 13F Microsoft Stock 594918104 88,246 3,366 3.97 13,916 17.92 1.5547
2019-11-12 2019-09-30 13F Microsoft Stock 594918104 84,880 380 0.45 11,801 4.25 1.4688
2019-08-14 2019-06-30 13F Microsoft Stock 594918104 84,500 -360 -0.42 11,320 13.11 1.3941
2019-05-13 2019-03-31 13F Microsoft Stock 594918104 84,860 891 1.06 10,008 17.34 1.3256
2019-02-13 2018-12-31 13F Microsoft Stock 594918104 83,969 856 1.03 8,529 -10.28 1.3409
2018-11-14 2018-09-30 13F Microsoft Stock 594918104 83,113 447 0.54 9,506 16.61 1.2087
2018-08-13 2018-06-30 13F Microsoft Stock 594918104 82,666 12,763 18.26 8,152 27.77 1.1202
2018-05-15 2018-03-31 13F Microsoft Stock 594918104 69,903 556 0.80 6,380 7.55 0.9585
2018-02-14 2017-12-31 13F Microsoft Stock 594918104 69,347 597 0.87 5,932 15.84 0.9183
2017-11-13 2017-09-30 13F MICROSOFT CORP COM Stock 594918104 68,750 12,259 21.70 5,121 31.51 0.8098
2017-08-14 2017-06-30 13F MICROSOFT CORP COM Stock 594918104 56,491 -3,010 -5.06 3,894 -4.39 0.6548
2017-05-12 2017-03-31 13F MICROSOFT CORP COM Stock 594918104 59,501 5,873 10.95 4,073 22.24 0.7069
2017-02-14 2016-12-31 13F MICROSOFT CORP COM Stock 594918104 53,628 3,595 7.19 3,332 15.61 0.6528
2016-11-14 2016-09-30 13F MICROSOFT CORP COM Stock 594918104 50,033 2,617 5.52 2,882 18.80 0.5766
2016-08-15 2016-06-30 13F/A-1 MICROSOFT COM 594918104 47,416 5,355 12.73 2,426 4.43 0.5224
2016-08-15 2016-06-30 13F LAMAR ADVERTISING COM 594918104 8,970 595
2016-05-13 2016-03-31 13F MICROSOFT COM 594918104 42,061 -1,788 -4.08 2,323 -4.52 0.5075
2016-02-16 2015-12-31 13F MICROSOFT COM 594918104 43,849 -3,022 -6.45 2,433 17.31 0.5463
2015-11-13 2015-09-30 13F MICROSOFT COM 594918104 46,871 -104 -0.22 2,074 0.00 0.5158
2015-08-12 2015-06-30 13F MICROSOFT COM 594918104 46,975 4,208 9.84 2,074 19.26 0.4360
2015-05-13 2015-03-31 13F MICROSOFT COM 594918104 42,767 1,768 4.31 1,739 -8.67 0.3998
2015-02-12 2014-12-31 13F MICROSOFT COM 594918104 40,999 1,327 3.34 1,904 3.53 0.4629
2014-11-14 2014-09-30 13F MICROSOFT COM 594918104 39,672 -2,650 -6.26 1,839 4.19 0.4615
2014-08-08 2014-06-30 13F MICROSOFT COM 594918104 42,322 -2,550 -5.68 1,765 -4.02 0.4412
2014-05-06 2014-03-31 13F MICROSOFT COM 594918104 44,872 2,826 6.72 1,839 16.91 0.4724
2014-01-13 2013-12-31 13F MICROSOFT COM 594918104 42,046 -825 -1.92 1,573 10.23 0.4260
2013-11-14 2013-09-30 13F MICROSOFT COM 594918104 42,871 -1,310 -2.97 1,427 -6.49 0.4881
2013-08-08 2013-06-30 13F MICROSOFT COM 594918104 44,181 44,181 1,526 0.5462
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.