Microsoft Corporation
CH ˙ SWX ˙ US5949181045
SecurityCH:MSFT / Microsoft Corporation
InstitutionRafferty Asset Management, LLC
Latest Disclosed Ownership1,286,837 shares
Latest Disclosed Value $ 476,348,452
Rafferty Asset Management, LLC reports 9.34% decrease in ownership of MSFT / Microsoft Corporation

On May 15, 2026 - Rafferty Asset Management, LLC filed a 13F-HR form disclosing ownership of 1,286,837 shares of Microsoft Corporation (CH:MSFT) valued at $476,348,452 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 1,419,468 shares of Microsoft Corporation. This represents a change in shares of -9.34% 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 1,286,837 -132,631 -9.34 476,348 -30.61 1.9339
2026-02-13 2025-12-31 13F MICROSOFT COM 594918104 1,419,468 14,401 1.02 686,483 -5.67 2.3715
2025-11-12 2025-09-30 13F MICROSOFT COM 594918104 1,405,067 -9,580 -0.68 727,754 3.42 2.3604
2025-08-14 2025-06-30 13F MICROSOFT COM 594918104 1,414,647 196,586 16.14 703,660 53.89 2.3213
2025-05-14 2025-03-31 13F MICROSOFT COM 594918104 1,218,061 -249,551 -17.00 457,248 -26.08 1.9495
2025-02-14 2024-12-31 13F MICROSOFT COM 594918104 1,467,612 53,667 3.80 618,598 1.67 2.1891
2024-11-13 2024-09-30 13F MICROSOFT COM 594918104 1,413,945 -582,609 -29.18 608,421 -31.82 2.0845
2024-08-13 2024-06-30 13F MICROSOFT COM 594918104 1,996,554 -28,388 -1.40 892,360 4.75 3.3124
2024-05-13 2024-03-31 13F MICROSOFT COM 594918104 2,024,942 96,005 4.98 851,934 17.45 3.1781
2024-02-13 2023-12-31 13F MICROSOFT COM 594918104 1,928,937 241,112 14.29 725,357 36.11 3.0588
2023-11-13 2023-09-30 13F MICROSOFT COM 594918104 1,687,825 -86,966 -4.90 532,931 -11.82 3.1322
2023-08-11 2023-06-30 13F MICROSOFT COM 594918104 1,774,791 312,914 21.40 604,387 43.40 3.4073
2023-05-11 2023-03-31 13F MICROSOFT COM 594918104 1,461,877 213,839 17.13 421,459 40.81 2.8558
2023-02-13 2022-12-31 13F MICROSOFT COM 594918104 1,248,038 214,858 20.80 299,304 24.38 2.5060
2022-11-14 2022-09-30 13F MICROSOFT COM 594918104 1,033,180 142,459 15.99 240,628 5.19 2.5611
2022-08-12 2022-06-30 13F MICROSOFT COM 594918104 890,721 -376,369 -29.70 228,764 -41.44 2.1051
2022-05-13 2022-03-31 13F MICROSOFT COM 594918104 1,267,090 -257,916 -16.91 390,657 -23.83 2.3154
2022-02-10 2021-12-31 13F MICROSOFT COM 594918104 1,525,006 131,850 9.46 512,890 30.59 2.6992
2021-11-10 2021-09-30 13F MICROSOFT COM 594918104 1,393,156 186,526 15.46 392,759 20.16 2.6835
2021-08-10 2021-06-30 13F MICROSOFT COM 594918104 1,206,630 81,677 7.26 326,876 23.24 2.0585
2021-05-10 2021-03-31 13F MICROSOFT COM 594918104 1,124,953 -74,982 -6.25 265,230 -0.62 1.8121
2021-02-10 2020-12-31 13F MICROSOFT COM 594918104 1,199,935 -26,298 -2.14 266,890 3.48 2.6081
2020-11-13 2020-09-30 13F MICROSOFT COM 594918104 1,226,233 298,259 32.14 257,914 36.57 3.1189
2020-08-07 2020-06-30 13F MICROSOFT COM 594918104 927,974 681,046 275.81 188,852 384.94 2.6609
2020-05-15 2020-03-31 13F MICROSOFT COM 594918104 246,928 224,778 1,014.80 38,943 1,014.89 1.6303
2020-02-10 2019-12-31 13F MICROSOFT COM 594918104 22,150 -1,632 -6.86 3,493 5.66 0.0537
2019-11-14 2019-09-30 13F MICROSOFT COM 594918104 23,782 1,107 4.88 3,306 8.82 0.0517
2019-08-09 2019-06-30 13F MICROSOFT COM 594918104 22,675 -782 -3.33 3,038 9.79 0.0534
2019-05-15 2019-03-31 13F MICROSOFT COM 594918104 23,457 8,172 53.46 2,767 78.29 0.0445
2019-02-11 2018-12-31 13F MICROSOFT COM 594918104 15,285 -2,114 -12.15 1,552 -22.01 0.0339
2018-11-09 2018-09-30 13F MICROSOFT COM 594918104 17,399 379 2.23 1,990 18.59 0.0308
2018-08-14 2018-06-30 13F MICROSOFT COM 594918104 17,020 -5,518 -24.48 1,678 -18.42 0.0251
2018-05-15 2018-03-31 13F MICROSOFT COM 594918104 22,538 -706 -3.04 2,057 3.47 0.0305
2018-02-14 2017-12-31 13F MICROSOFT COM 594918104 23,244 -3,607 -13.43 1,988 -0.60 0.0343
2017-11-13 2017-09-30 13F MICROSOFT COM 594918104 26,851 -617 -2.25 2,000 5.65 0.0449
2017-08-11 2017-06-30 13F MICROSOFT COM 594918104 27,468 2,656 10.70 1,893 15.85 0.0543
2017-05-11 2017-03-31 13F MICROSOFT COM 594918104 24,812 948 3.97 1,634 10.18 0.0360
2017-02-13 2016-12-31 13F MICROSOFT COM 594918104 23,864 1,432 6.38 1,483 14.78 0.0679
2016-11-14 2016-09-30 13F MICROSOFT COM 594918104 22,432 -791 -3.41 1,292 8.75 0.0472
2016-08-09 2016-06-30 13F MICROSOFT COM 594918104 23,223 -4,221 -15.38 1,188 -21.64 0.0803
2016-05-12 2016-03-31 13F MICROSOFT COM 594918104 27,444 -3,437 -11.13 1,516 -12.17 0.0824
2016-02-12 2015-12-31 13F MICROSOFT COM 594918104 30,881 -16,538 -34.88 1,726 -17.77 0.2076
2015-11-12 2015-09-30 13F MICROSOFT COM 594918104 47,419 10,927 29.94 2,099 30.29 0.1658
2015-08-12 2015-06-30 13F MICROSOFT COM 594918104 36,492 2,241 6.54 1,611 15.73 0.1082
2015-05-14 2015-03-31 13F MICROSOFT COM 594918104 34,251 14,132 70.24 1,392 48.88 0.1049
2015-02-13 2014-12-31 13F MICROSOFT COM 594918104 20,119 -16,441 -44.97 935 -44.84 0.2122
2014-11-14 2014-09-30 13F MICROSOFT COM 594918104 36,560 22,993 169.48 1,695 199.47 0.1824
2014-08-13 2014-06-30 13F MICROSOFT COM 594918104 13,567 -4,273 -23.95 566 -22.57 0.1089
2014-05-14 2014-03-31 13F MICROSOFT COM 594918104 17,840 1,087 6.49 731 16.59 0.1513
2014-02-06 2013-12-31 13F MICROSOFT COM 594918104 16,753 16,753 627 0.1499
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.