Microsoft Corporation
CH ˙ SWX ˙ US5949181045
SecurityCH:MSFT / Microsoft Corporation
InstitutionRMB Capital Management, LLC
Latest Disclosed Ownership484,587 shares
Latest Disclosed Value $ 179,379,309
RMB Capital Management, LLC reports 7.10% decrease in ownership of MSFT / Microsoft Corporation

On May 15, 2026 - RMB Capital Management, LLC filed a 13F-HR form disclosing ownership of 484,587 shares of Microsoft Corporation (CH:MSFT) valued at $179,379,309 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 521,648 shares of Microsoft Corporation. This represents a change in shares of -7.10% 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 484,587 -37,061 -7.10 179,379 -28.90 2.4159
2026-02-17 2025-12-31 13F MICROSOFT COM 594918104 521,648 -2,014 -0.38 252,279 -6.99 4.3714
2025-11-13 2025-09-30 13F MICROSOFT COM 594918104 523,662 25,254 5.07 271,231 9.41 4.9765
2025-08-14 2025-06-30 13F MICROSOFT COM 594918104 498,408 118,471 31.18 247,913 73.82 4.7058
2025-05-15 2025-03-31 13F MICROSOFT COM 594918104 379,937 16,636 4.58 142,625 -6.86 3.5172
2025-02-13 2024-12-31 13F MICROSOFT COM 594918104 363,301 39,688 12.26 153,131 9.97 3.5285
2024-11-06 2024-09-30 13F MICROSOFT COM 594918104 323,613 12,858 4.14 139,251 0.26 3.1620
2024-08-13 2024-06-30 13F MICROSOFT COM 594918104 310,755 46,221 17.47 138,892 24.80 3.3302
2024-05-15 2024-03-31 13F MICROSOFT COM 594918104 264,534 40,771 18.22 111,295 32.27 2.5500
2024-02-14 2023-12-31 13F MICROSOFT COM 594918104 223,763 -6,462 -2.81 84,144 15.75 2.5696
2023-11-13 2023-09-30 13F MICROSOFT COM 594918104 230,225 -224 -0.10 72,694 -7.37 2.4865
2023-08-11 2023-06-30 13F MICROSOFT COM 594918104 230,449 -3,150 -1.35 78,477 16.53 2.5778
2023-05-11 2023-03-31 13F MICROSOFT COM 594918104 233,599 8,157 3.62 67,347 24.56 2.3525
2023-02-14 2022-12-31 13F MICROSOFT COM 594918104 225,442 -9,850 -4.19 54,066 -1.34 1.9228
2022-11-14 2022-09-30 13F MICROSOFT COM 594918104 235,292 -5,783 -2.40 54,799 -11.49 2.0414
2022-08-16 2022-06-30 13F/A-1 MICROSOFT COM 594918104 241,075 -1,406 -0.58 61,915 -17.18 2.1308
2022-08-01 2022-06-30 13F MICROSOFT COM 594918104 244,981 2,500 62,918 2.3419
2022-05-06 2022-03-31 13F MICROSOFT COM 594918104 242,481 6,626 2.81 74,759 -5.75 2.3633
2022-01-26 2021-12-31 13F MICROSOFT COM 594918104 235,855 -5,086 -2.11 79,323 16.78 2.3930
2021-10-20 2021-09-30 13F MICROSOFT COM 594918104 240,941 3,338 1.40 67,926 5.53 2.2302
2021-08-13 2021-06-30 13F MICROSOFT COM 594918104 237,603 8,885 3.88 64,367 19.36 2.1530
2021-05-12 2021-03-31 13F MICROSOFT COM 594918104 228,718 17,296 8.18 53,925 14.68 1.9936
2021-02-11 2020-12-31 13F MICROSOFT COM 594918104 211,422 -140 -0.07 47,024 5.68 1.7190
2020-11-10 2020-09-30 13F MICROSOFT COM 594918104 211,562 -3,493 -1.62 44,498 1.67 1.9250
2020-08-05 2020-06-30 13F MICROSOFT COM 594918104 215,055 -8,601 -3.85 43,766 24.08 1.9264
2020-05-11 2020-03-31 13F MICROSOFT COM 594918104 223,656 -17,175 -7.13 35,273 -7.13 1.6744
2020-02-13 2019-12-31 13F MICROSOFT COM 594918104 240,831 -20,313 -7.78 37,980 4.61 1.0556
2019-11-12 2019-09-30 13F MICROSOFT COM 594918104 261,144 -162 -0.06 36,307 3.72 0.9542
2019-08-13 2019-06-30 13F MICROSOFT COM 594918104 261,306 -12,667 -4.62 35,004 8.33 0.8856
2019-05-15 2019-03-31 13F MICROSOFT COM 594918104 273,973 2,610 0.96 32,312 17.23 0.8165
2019-02-13 2018-12-31 13F MICROSOFT COM 594918104 271,363 -522 -0.19 27,562 -11.36 0.7036
2018-11-14 2018-09-30 13F MICROSOFT COM 594918104 271,885 5,166 1.94 31,095 18.23 0.7465
2018-08-13 2018-06-30 13F MICROSOFT COM 594918104 266,719 -45,613 -14.60 26,301 -7.74 0.6257
2018-05-14 2018-03-31 13F MICROSOFT COM 594918104 312,332 -2,491 -0.79 28,506 5.86 0.7292
2018-02-14 2017-12-31 13F MICROSOFT COM 594918104 314,823 -97,961 -23.73 26,929 -12.42 0.6993
2017-11-14 2017-09-30 13F MICROSOFT COM 594918104 412,784 -7,221 -1.72 30,749 6.21 0.7943
2017-08-14 2017-06-30 13F MICROSOFT COM 594918104 420,005 240,964 134.59 28,951 145.51 0.8284
2017-05-12 2017-03-31 13F MICROSOFT COM 594918104 179,041 127,264 245.79 11,792 266.55 0.4877
2017-03-10 2016-12-31 13F/A-1 MICROSOFT COM 594918104 51,777 32,077 162.83 3,217 183.69 0.1730
2017-02-13 2016-12-31 13F MICROSOFT COM 594918104 51,777 3,217
2016-11-17 2016-09-30 13F/A-1 MICROSOFT COM 594918104 19,700 9,642 95.86 1,134 120.19 0.0616
2016-11-02 2016-09-30 13F MICROSOFT COM 594918104 19,700 1,134
2016-08-03 2016-06-30 13F MICROSOFT COM 594918104 10,058 1,204 13.60 515 5.32 0.0269
2016-05-09 2016-03-31 13F MICROSOFT COM 594918104 8,854 1,600 22.06 489 21.64 0.0318
2016-02-12 2015-12-31 13F MICROSOFT COM 594918104 7,254 -547 -7.01 402 16.52 0.0185
2015-11-12 2015-09-30 13F MICROSOFT COM 594918104 7,801 56 0.72 345 1.17 0.0229
2015-08-13 2015-06-30 13F MICROSOFT CORP COM COM 594918104 7,745 851 12.34 341 21.79 0.0222
2015-05-12 2015-03-31 13F MICROSOFT CORP COM COM 594918104 6,894 547 8.62 280 -4.76 0.0169
2015-02-11 2014-12-31 13F MICROSOFT CORP COM COM 594918104 6,347 -270 -4.08 294 -3.92 0.0179
2014-11-13 2014-09-30 13F MICROSOFT COM 594918104 6,617 410 6.61 306 18.60 0.0187
2014-08-11 2014-06-30 13F MICROSOFT COM 594918104 6,207 329 5.60 258 6.61 0.0163
2014-05-12 2014-03-31 13F MICROSOFT COM 594918104 5,878 -57 -0.96 242 9.01 0.0167
2014-02-10 2013-12-31 13F MICROSOFT COM 594918104 5,935 -750 -11.22 222 -0.45 0.0154
2013-11-14 2013-09-30 13F MICROSOFT COM 594918104 6,685 6,685 223 0.0160
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.