Microsoft Corporation
BG ˙ BUL ˙ US5949181045
SecurityBG:MSF / Microsoft Corporation
InstitutionAltimeter Capital Management, LP
Latest Disclosed Ownership1,183,632 shares
Latest Disclosed Value $ 438,145,057
Altimeter Capital Management, LP reports 7.34% decrease in ownership of MSF / Microsoft Corporation

On May 15, 2026 - Altimeter Capital Management, LP filed a 13F-HR form disclosing ownership of 1,183,632 shares of Microsoft Corporation (BG:MSF) valued at $438,145,057 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 1,277,352 shares of Microsoft Corporation. This represents a change in shares of -7.34% 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 1,183,632 -93,720 -7.34 438,145 -29.07 7.6877
2026-02-17 2025-12-31 13F MICROSOFT COM 594918104 1,277,352 115,260 9.92 617,753 2.63 9.2728
2025-11-14 2025-09-30 13F MICROSOFT COM 594918104 1,162,092 103,971 9.83 601,906 14.36 7.9387
2025-08-14 2025-06-30 13F MICROSOFT COM 594918104 1,058,121 83,041 8.52 526,320 43.79 7.5941
2025-05-15 2025-03-31 13F MICROSOFT COM 594918104 975,080 -18,400 -1.85 366,035 -12.59 7.3633
2025-02-14 2024-12-31 13F MICROSOFT COM 594918104 993,480 -592,420 -37.36 418,752 -38.64 7.5506
2024-11-14 2024-09-30 13F MICROSOFT COM 594918104 1,585,900 -39,740 -2.44 682,413 -6.08 10.1044
2024-08-14 2024-06-30 13F MICROSOFT COM 594918104 1,625,640 -24,230 -1.47 726,580 4.67 10.7936
2024-05-15 2024-03-31 13F MICROSOFT COM 594918104 1,649,870 -3,090 -0.19 694,133 11.67 10.6638
2024-02-14 2023-12-31 13F MICROSOFT COM 594918104 1,652,960 0 0.00 621,579 19.09 10.3204
2023-11-14 2023-09-30 13F MICROSOFT COM 594918104 1,652,960 119,825 7.82 521,922 -0.03 9.9072
2023-08-14 2023-06-30 13F MICROSOFT COM 594918104 1,533,135 0 0.00 522,094 18.12 9.4446
2023-05-16 2023-03-31 13F MICROSOFT COM 594918104 1,533,135 0 0.00 442,003 120,336.51 9.7075
2023-02-14 2022-12-31 13F MICROSOFT COM 594918104 1,533,135 0 0.00 368 -99.90 10.0662
2022-11-14 2022-09-30 13F MICROSOFT COM 594918104 1,533,135 -230,000 -13.04 357,067 -21.15 7.6357
2022-08-15 2022-06-30 13F MICROSOFT COM 594918104 1,763,135 0 0.00 452,826 -16.70 10.3450
2022-05-17 2022-03-31 13F/A-1 MICROSOFT COM 594918104 1,763,135 0 0.00 543,592 -8.33 7.8495
2022-05-17 2022-03-31 13F MICROSOFT COM 594918104 1,763,135 543,592
2022-02-14 2021-12-31 13F MICROSOFT COM 594918104 1,763,135 0 0.00 592,978 19.30 5.6386
2021-11-15 2021-09-30 13F MICROSOFT COM 594918104 1,763,135 0 0.00 497,063 4.07 3.9820
2021-10-07 2021-06-30 13F/A-1 MICROSOFT COM 594918104 1,763,135 0 0.00 477,633 14.90 3.7330
2021-08-16 2021-06-30 13F MICROSOFT COM 594918104 1,763,135 0 477,633 3.5931
2021-05-17 2021-03-31 13F MICROSOFT COM 594918104 1,763,135 225,000 14.63 415,694 21.51 2.9726
2021-02-16 2020-12-31 13F MICROSOFT COM 594918104 1,538,135 223,000 16.96 342,112 23.68 3.1653
2020-11-16 2020-09-30 13F MICROSOFT COM 594918104 1,315,135 218,000 19.87 276,612 23.89 4.6706
2020-08-14 2020-06-30 13F MICROSOFT COM 594918104 1,097,135 572,135 108.98 223,278 169.67 4.7236
2020-05-15 2020-03-31 13F MICROSOFT COM 594918104 525,000 0 0.00 82,798 0.01 2.4844
2020-02-14 2019-12-31 13F MICROSOFT COM 594918104 525,000 0 0.00 82,793 13.43 1.8501
2019-11-14 2019-09-30 13F MICROSOFT COM 594918104 525,000 25,000 5.00 72,991 8.97 1.7810
2019-08-14 2019-06-30 13F MICROSOFT COM 594918104 500,000 0 0.00 66,980 13.58 1.8341
2019-05-15 2019-03-31 13F MICROSOFT COM 594918104 500,000 140,000 38.89 58,970 61.27 2.0192
2019-02-15 2018-12-31 13F/A-1 MICROSOFT COM 594918104 360,000 59,800 19.92 36,565 6.50 1.3330
2019-02-14 2018-12-31 13F MICROSOFT COM 594918104 360,000 59,800 36,565
2018-11-14 2018-09-30 13F MICROSOFT COM 594918104 300,200 25,200 9.16 34,334 26.61 1.3383
2018-08-14 2018-06-30 13F MICROSOFT COM 594918104 275,000 15,000 5.77 27,118 14.28 1.2747
2018-05-15 2018-03-31 13F MICROSOFT COM 594918104 260,000 260,000 23,730 1.1767
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.