Microsoft Corporation
CH ˙ SWX ˙ US5949181045
SecurityCH:MSFT / Microsoft Corporation
InstitutionGrantham, Mayo, Van Otterloo & Co. LLC
Latest Disclosed Ownership6,176,138 shares
Latest Disclosed Value $ 2,286,221,444
Grantham, Mayo, Van Otterloo & Co. LLC reports 17.25% increase in ownership of MSFT / Microsoft Corporation

On May 14, 2026 - Grantham, Mayo, Van Otterloo & Co. LLC filed a 13F-HR form disclosing ownership of 6,176,138 shares of Microsoft Corporation (CH:MSFT) valued at $2,286,221,444 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 5,267,686 shares of Microsoft Corporation. This represents a change in shares of 17.25% 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)
2026-05-14 2026-03-31 13F MICROSOFT COM 594918104 6,176,138 908,452 17.25 2,286,221 -10.26 5.8478
2026-02-17 2025-12-31 13F MICROSOFT COM 594918104 5,267,686 308,087 6.21 2,547,559 -0.83 6.5119
2025-11-13 2025-09-30 13F MICROSOFT COM 594918104 4,959,599 99,660 2.05 2,568,825 6.26 7.2447
2025-08-13 2025-06-30 13F MICROSOFT COM 594918104 4,859,939 76,854 1.61 2,417,383 34.63 7.2745
2025-05-14 2025-03-31 13F MICROSOFT COM 594918104 4,783,085 866,208 22.11 1,795,522 8.76 5.6610
2025-02-13 2024-12-31 13F MICROSOFT COM 594918104 3,916,877 -84,978 -2.12 1,650,964 -4.13 5.3704
2024-11-13 2024-09-30 13F MICROSOFT COM 594918104 4,001,855 219,527 5.80 1,721,998 1.86 5.3971
2024-08-13 2024-06-30 13F MICROSOFT COM 594918104 3,782,328 185,260 5.15 1,690,512 11.71 5.7097
2024-05-14 2024-03-31 13F MICROSOFT COM 594918104 3,597,068 598,476 19.96 1,513,358 34.21 5.4997
2024-02-13 2023-12-31 13F MICROSOFT COM 594918104 2,998,592 88,462 3.04 1,127,591 22.71 4.9759
2023-11-13 2023-09-30 13F MICROSOFT COM 594918104 2,910,130 -125,110 -4.12 918,874 -11.10 4.3401
2023-08-14 2023-06-30 13F MICROSOFT COM 594918104 3,035,240 -265,356 -8.04 1,033,621 8.62 4.7851
2023-05-12 2023-03-31 13F MICROSOFT COM 594918104 3,300,596 -20,988 -0.63 951,562 19.46 4.8403
2023-02-13 2022-12-31 13F MICROSOFT COM 594918104 3,321,584 178,540 5.68 796,582 8.82 4.2435
2022-11-10 2022-09-30 13F MICROSOFT COM 594918104 3,143,044 -47,752 -1.50 732,015 -10.67 4.2237
2022-08-12 2022-06-30 13F MICROSOFT COM 594918104 3,190,796 181,120 6.02 819,492 -11.68 4.4390
2022-05-13 2022-03-31 13F MICROSOFT COM 594918104 3,009,676 -55,251 -1.80 927,913 -9.98 4.4772
2022-02-11 2021-12-31 13F MICROSOFT COM 594918104 3,064,927 -290,564 -8.66 1,030,796 8.97 4.9510
2021-11-12 2021-09-30 13F MICROSOFT COM 594918104 3,355,491 148,093 4.62 945,980 8.87 4.6793
2021-08-12 2021-06-30 13F MICROSOFT COM 594918104 3,207,398 189,621 6.28 868,884 22.12 4.3346
2021-05-13 2021-03-31 13F MICROSOFT CO 594918104 3,017,777 -49,790 -1.62 711,501 4.28 3.8866
2021-02-12 2020-12-31 13F MICROSOFT COM 594918104 3,067,567 92,818 3.12 682,288 9.05 4.1912
2020-11-13 2020-09-30 13F MICROSOFT COM 594918104 2,974,749 -412,599 -12.18 625,679 -9.24 4.4530
2020-08-13 2020-06-30 13F MICROSOFT COM 594918104 3,387,348 -54,854 -1.59 689,359 26.98 5.1185
2020-05-14 2020-03-31 13F MICROSOFT COM 594918104 3,442,202 -545,188 -13.67 542,870 -13.67 4.5269
2020-02-13 2019-12-31 13F MICROSOFT COM 594918104 3,987,390 -212,165 -5.05 628,811 7.70 4.1995
2019-11-13 2019-09-30 13F MICROSOFT COM 594918104 4,199,555 -265,982 -5.96 583,864 -2.40 4.0504
2019-08-13 2019-06-30 13F MICROSOFT COM 594918104 4,465,537 -387,411 -7.98 598,203 4.52 4.2102
2019-05-14 2019-03-31 13F MICROSOFT COM 594918104 4,852,948 -367,651 -7.04 572,357 7.94 4.1162
2019-02-13 2018-12-31 13F MICROSOFT COM 594918104 5,220,599 -344,525 -6.19 530,256 -16.69 4.2341
2018-11-14 2018-09-30 13F MICROSOFT COM 594918104 5,565,124 -221,600 -3.83 636,483 11.54 4.3124
2018-08-14 2018-06-30 13F MICROSOFT COM 594918104 5,786,724 -2,010,995 -25.79 570,629 -19.82 4.0514
2018-05-15 2018-03-31 13F MICROSOFT COM 594918104 7,797,719 -2,023,782 -20.61 711,698 -15.29 4.3538
2018-02-14 2017-12-31 13F MICROSOFT COM 594918104 9,821,501 -693,993 -6.60 840,131 7.26 4.9562
2017-11-14 2017-09-30 13F MICROSOFT COM 594918104 10,515,494 -2,050,001 -16.31 783,299 -9.56 4.5794
2017-08-14 2017-06-30 13F MICROSOFT COM 594918104 12,565,495 -889,541 -6.61 866,140 -2.26 4.7788
2017-05-15 2017-03-31 13F MICROSOFT COM 594918104 13,455,036 -650,010 -4.61 886,149 1.10 4.9979
2017-02-13 2016-12-31 13F MICROSOFT COM 594918104 14,105,046 -2,981,525 -17.45 876,488 -10.94 4.7243
2016-11-10 2016-09-30 13F MICROSOFT COM 594918104 17,086,571 2,484,377 17.01 984,186 31.72 4.6465
2016-08-12 2016-06-30 13F MICROSOFT COM 594918104 14,602,194 2,123,583 17.02 747,194 8.42 3.0657
2016-05-13 2016-03-31 13F MICROSOFT COM 594918104 12,478,611 -652,704 -4.97 689,194 -5.40 2.5746
2016-02-12 2015-12-31 13F MICROSOFT COM 594918104 13,131,315 -10,871,388 -45.29 728,525 -31.42 2.6189
2015-11-13 2015-09-30 13F MICROSOFT COM 594918104 24,002,703 -4,539,307 -15.90 1,062,360 -15.69 3.6906
2015-08-13 2015-06-30 13F MICROSOFT COM 594918104 28,542,010 8,156,500 40.01 1,260,130 52.05 4.0635
2015-05-14 2015-03-31 13F MICROSOFT COM 594918104 20,385,510 -12,057,037 -37.16 828,773 -45.00 2.4734
2015-02-13 2014-12-31 13F MICROSOFT COM 594918104 32,442,547 -3,859,094 -10.63 1,506,956 -10.46 4.0567
2014-11-13 2014-09-30 13F MICROSOFT COM 594918104 36,301,641 -4,294,203 -10.58 1,682,944 -0.58 4.4573
2014-08-13 2014-06-30 13F MICROSOFT COM 594918104 40,595,844 -4,491,590 -9.96 1,692,847 -8.40 4.5970
2014-05-14 2014-03-31 13F MICROSOFT COM 594918104 45,087,434 -4,602,965 -9.26 1,848,134 -0.63 4.8204
2014-02-13 2013-12-31 13F MICROSOFT COM 594918104 49,690,399 -5,605,586 -10.14 1,859,912 0.98 4.5136
2013-11-14 2013-09-30 13F MICROSOFT COM 594918104 55,295,985 -1,166,137 -2.07 1,841,909 -5.53 4.8549
2013-08-13 2013-06-30 13F MICROSOFT COM 594918104 56,462,122 56,462,122 1,949,637 5.0768
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.