Microsoft Corporation
CH ˙ SWX ˙ US5949181045
SecurityCH:MSFT / Microsoft Corporation
InstitutionBamco Inc /ny/
Latest Disclosed Ownership73,753 shares
Latest Disclosed Value $ 27,301,148
Bamco Inc /ny/ reports 78.42% decrease in ownership of MSFT / Microsoft Corporation

On May 15, 2026 - Bamco Inc /ny/ filed a 13F-HR form disclosing ownership of 73,753 shares of Microsoft Corporation (CH:MSFT) valued at $27,301,148 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 341,758 shares of Microsoft Corporation. This represents a change in shares of -78.42% 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 MICROSOFT COM 594918104 73,753 -268,005 -78.42 27,301 -83.48 0.0824
2026-02-17 2025-12-31 13F MICROSOFT COM 594918104 341,758 6,211 1.85 165,281 -4.90 0.4478
2025-11-14 2025-09-30 13F MICROSOFT COM 594918104 335,547 789 0.24 173,797 4.38 0.4608
2025-08-14 2025-06-30 13F MICROSOFT COM 594918104 334,758 -29,257 -8.04 166,512 21.85 0.4514
2025-05-15 2025-03-31 13F MICROSOFT COM 594918104 364,015 -212,226 -36.83 136,648 -43.74 0.4014
2025-02-14 2024-12-31 13F MICROSOFT COM 594918104 576,241 -931 -0.16 242,886 -2.20 0.6279
2024-11-14 2024-09-30 13F MICROSOFT COM 594918104 577,172 -43,757 -7.05 248,357 -10.51 0.6588
2024-08-14 2024-06-30 13F MICROSOFT COM 594918104 620,929 34,012 5.80 277,524 12.39 0.7948
2024-05-15 2024-03-31 13F MICROSOFT COM 594918104 586,917 46,915 8.69 246,928 21.60 0.6581
2024-02-14 2023-12-31 13F MICROSOFT COM 594918104 540,002 50,486 10.31 203,062 31.38 0.5408
2023-11-14 2023-09-30 13F MICROSOFT COM 594918104 489,516 10,844 2.27 154,565 -5.18 0.4491
2023-08-14 2023-06-30 13F MICROSOFT COM 594918104 478,672 -5,811 -1.20 163,007 16.70 0.4514
2023-05-15 2023-03-31 13F MICROSOFT COM 594918104 484,483 -13,976 -2.80 139,676 16.84 0.4193
2023-02-14 2022-12-31 13F MICROSOFT COM 594918104 498,459 -25,909 -4.94 119,540 -2.12 0.4014
2022-11-14 2022-09-30 13F MICROSOFT COM 594918104 524,368 35 0.01 122,125 -9.31 0.3945
2022-08-15 2022-06-30 13F MICROSOFT COM 594918104 524,333 -10,653 -1.99 134,664 -18.36 0.4325
2022-05-13 2022-03-31 13F MICROSOFT COM 594918104 534,986 -3,177 -0.59 164,942 -8.87 0.4048
2022-02-14 2021-12-31 13F MICROSOFT COM 594918104 538,163 1,362 0.25 180,995 19.60 0.3839
2021-11-12 2021-09-30 13F MICROSOFT COM 594918104 536,801 6,356 1.20 151,335 5.31 0.3428
2021-08-13 2021-06-30 13F MICROSOFT COM 594918104 530,445 -81,582 -13.33 143,698 -0.42 0.3290
2021-05-19 2021-03-31 13F MICROSOFT COM 594918104 612,027 160,430 35.53 144,298 43.66 0.3557
2021-02-12 2020-12-31 13F MICROSOFT COM 594918104 451,597 42,394 10.36 100,444 16.70 0.2485
2020-11-13 2020-09-30 13F MICROSOFT COM 594918104 409,203 568 0.14 86,068 3.50 0.2642
2020-08-14 2020-06-30 13F MICROSOFT COM 594918104 408,635 169,756 71.06 83,161 120.74 0.3006
2020-05-15 2020-03-31 13F MICROSOFT COM 594918104 238,879 19,199 8.74 37,674 8.75 0.1846
2020-02-18 2019-12-31 13F MICROSOFT COM 594918104 219,680 -4,976 -2.21 34,644 10.92 0.1323
2019-11-14 2019-09-30 13F MICROSOFT COM 594918104 224,656 -2,791 -1.23 31,234 2.51 0.1285
2019-08-15 2019-06-30 13F MICROSOFT COM 594918104 227,447 -2,761 -1.20 30,469 12.22 0.1222
2019-05-15 2019-03-31 13F MICROSOFT COM 594918104 230,208 -1,534 -0.66 27,151 15.35 0.1151
2019-02-14 2018-12-31 13F MICROSOFT COM 594918104 231,742 -329 -0.14 23,538 -11.32 0.1191
2018-11-14 2018-09-30 13F MICROSOFT COM 594918104 232,071 682 0.29 26,542 16.33 0.1100
2018-08-14 2018-06-30 13F MICROSOFT COM 594918104 231,389 47,941 26.13 22,817 36.28 0.0997
2018-05-09 2018-03-31 13F MICROSOFT COM 594918104 183,448 87,193 90.59 16,743 103.34 0.0770
2018-02-14 2017-12-31 13F MICROSOFT COM 594918104 96,255 96,255 8,234 0.0380
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.