Microsoft Corporation
BG ˙ BUL ˙ US5949181045
SecurityBG:MSF / Microsoft Corporation
InstitutionSpears Abacus Advisors LLC
Latest Disclosed Ownership656,147 shares
Latest Disclosed Value $ 242,885,972
Spears Abacus Advisors LLC reports 12.18% decrease in ownership of MSF / Microsoft Corporation

On May 15, 2026 - Spears Abacus Advisors LLC filed a 13F-HR/A form disclosing ownership of 656,147 shares of Microsoft Corporation (BG:MSF) valued at $242,885,972 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 747,186 shares of Microsoft Corporation. This represents a change in shares of -12.18% 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)
2026-05-15 2026-03-31 13F/A-1 MICROSOFT COM 594918104 656,147 -91,039 -12.18 242,886 -32.78 4.7620
2026-05-14 2026-03-31 13F MICROSOFT COM 594918104 656,452 -90,734 240,037 4.7559
2026-02-17 2025-12-31 13F MICROSOFT COM 594918104 747,186 4,578 0.62 361,354 -6.05 6.7603
2025-11-14 2025-09-30 13F MICROSOFT COM 594918104 742,608 -5,625 -0.75 384,634 3.35 7.2550
2025-08-14 2025-06-30 13F MICROSOFT COM 594918104 748,233 -31,317 -4.02 372,179 27.18 7.5164
2025-05-14 2025-03-31 13F MICROSOFT COM 594918104 779,550 251 0.03 292,635 -10.91 6.3012
2025-02-12 2024-12-31 13F MICROSOFT COM 594918104 779,299 -52,092 -6.27 328,475 -8.18 6.7475
2024-11-12 2024-09-30 13F MICROSOFT COM 594918104 831,391 -12,413 -1.47 357,748 -5.14 7.0410
2024-08-12 2024-06-30 13F MICROSOFT COM 594918104 843,804 -13,956 -1.63 377,138 4.51 7.8244
2024-05-10 2024-03-31 13F MICROSOFT COM 594918104 857,760 511,085 147.42 360,877 176.82 7.4613
2024-02-14 2023-12-31 13F MICROSOFT COM 594918104 346,675 -584 -0.17 130,364 18.89 10.3797
2023-11-21 2023-09-30 13F MICROSOFT COM 594918104 347,259 -3,474 -0.99 109,647 -8.20 9.3998
2023-08-14 2023-06-30 13F MICROSOFT COM 594918104 350,733 -5,148 -1.45 119,439 16.41 9.7443
2023-05-15 2023-03-31 13F MICROSOFT COM 594918104 355,881 -23,454 -6.18 102,600 12.78 9.1867
2023-02-13 2022-12-31 13F MICROSOFT COM 594918104 379,335 -529 -0.14 90,972 2.83 8.6745
2022-11-14 2022-09-30 13F MICROSOFT COM 594918104 379,864 741 0.20 88,470 -9.14 8.7326
2022-08-08 2022-06-30 13F MICROSOFT COM 594918104 379,123 -640 -0.17 97,370 -16.84 8.7755
2022-05-13 2022-03-31 13F MICROSOFT COM 594918104 379,763 -13,677 -3.48 117,085 -11.52 8.6890
2022-02-14 2021-12-31 13F MICROSOFT COM 594918104 393,440 -3,939 -0.99 132,322 18.11 8.9277
2021-11-15 2021-09-30 13F MICROSOFT COM 594918104 397,379 -3,197 -0.80 112,029 3.24 8.0994
2021-08-09 2021-06-30 13F MICROSOFT COM 594918104 400,576 -2,148 -0.53 108,516 14.29 7.7965
2021-05-14 2021-03-31 13F MICROSOFT COM 594918104 402,724 3,182 0.80 94,950 6.85 7.3374
2021-02-12 2020-12-31 13F MICROSOFT COM 594918104 399,542 -8,432 -2.07 88,866 3.56 7.4241
2020-11-16 2020-09-30 13F MICROSOFT COM 594918104 407,974 -2,463 -0.60 85,809 2.73 8.1734
2020-08-12 2020-06-30 13F MICROSOFT COM 594918104 410,437 -48,672 -10.60 83,528 15.36 8.7841
2020-05-15 2020-03-31 13F MICROSOFT COM 594918104 459,109 -1,913 -0.41 72,406 -0.41 8.8580
2020-02-14 2019-12-31 13F MICROSOFT COM 594918104 461,022 -26,945 -5.52 72,703 7.17 7.7754
2019-11-14 2019-09-30 13F MICROSOFT COM 594918104 487,967 -7,387 -1.49 67,842 2.24 7.8679
2019-08-09 2019-06-30 13F MICROSOFT COM 594918104 495,354 -9,567 -1.89 66,358 11.43 7.7941
2019-05-14 2019-03-31 13F MICROSOFT COM 594918104 504,921 215 0.04 59,550 16.17 7.5963
2019-02-13 2018-12-31 13F MICROSOFT COM 594918104 504,706 -16,929 -3.25 51,263 -14.07 7.5220
2018-11-13 2018-09-30 13F MICROSOFT COM 594918104 521,635 -8,397 -1.58 59,659 14.14 7.1274
2018-08-10 2018-06-30 13F MICROSOFT COM 594918104 530,032 -3,843 -0.72 52,266 7.26 6.7855
2018-05-15 2018-03-31 13F MICROSOFT COM 594918104 533,875 -5,730 -1.06 48,727 5.57 6.3380
2018-02-14 2017-12-31 13F MICROSOFT COM 594918104 539,605 -2,460 -0.45 46,158 14.31 5.6207
2017-11-13 2017-09-30 13F MICROSOFT COM 594918104 542,065 -6,920 -1.26 40,378 6.70 4.8307
2017-08-11 2017-06-30 13F MICROSOFT COM 594918104 548,985 -17,561 -3.10 37,842 1.42 4.7025
2017-05-10 2017-03-31 13F MICROSOFT COM 594918104 566,546 -269 -0.05 37,313 5.94 4.7153
2017-02-13 2016-12-31 13F MICROSOFT COM 594918104 566,815 -32,382 -5.40 35,222 2.05 4.5230
2016-11-14 2016-09-30 13F MICROSOFT COM 594918104 599,197 -38,025 -5.97 34,514 5.85 4.3429
2016-08-10 2016-06-30 13F MICROSOFT COM 594918104 637,222 -3,728 -0.58 32,607 -7.89 4.1351
2016-05-13 2016-03-31 13F MICROSOFT COM 594918104 640,950 -5,171 -0.80 35,400 -1.25 4.3207
2016-02-16 2015-12-31 13F MICROSOFT COM 594918104 646,121 -10,725 -1.63 35,847 23.30 4.1012
2015-11-13 2015-09-30 13F MICROSOFT COM 594918104 656,846 16,894 2.64 29,072 2.90 3.3230
2015-08-14 2015-06-30 13F MICROSOFT COM 594918104 639,952 6,084 0.96 28,254 9.64 3.1280
2015-05-14 2015-03-31 13F MICROSOFT COM 594918104 633,868 33,460 5.57 25,770 -7.60 3.0849
2015-02-13 2014-12-31 13F MICROSOFT COM 594918104 600,408 9,650 1.63 27,889 1.83 3.0953
2014-11-14 2014-09-30 13F MICROSOFT COM 594918104 590,758 -13,718 -2.27 27,388 8.65 3.2743
2014-08-14 2014-06-30 13F MICROSOFT COM 594918104 604,476 -239,763 -28.40 25,207 -27.16 2.9780
2014-05-13 2014-03-31 13F MICROSOFT COM 594918104 844,239 -19,140 -2.22 34,605 7.14 4.3491
2014-02-14 2013-12-31 13F MICROSOFT COM 594918104 863,379 -19,885 -2.25 32,299 9.88 4.0321
2013-11-14 2013-09-30 13F MICROSOFT COM 594918104 883,264 9,835 1.13 29,395 -2.58 3.8293
2013-08-14 2013-06-30 13F MICROSOFT COM 594918104 873,429 873,429 30,173 4.4456
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.