Microsoft Corporation
MX ˙ BMV ˙ US5949181045
SecurityMX:MSFT / Microsoft Corporation
Institution1832 Asset Management L.P.
Latest Disclosed Ownership6,323,428 shares
Latest Disclosed Value $ 2,340,743,343
1832 Asset Management L.P. ownership in MSFT / Microsoft Corporation

On May 14, 2026 - 1832 Asset Management L.P. filed a 13F-HR form disclosing ownership of 6,323,428 shares of Microsoft Corporation (MX:MSFT) valued at $2,340,743,343 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 5,645,286 shares of Microsoft Corporation. This represents a change in shares of 12.01% during the quarter.

1832 Asset Management L.P. has a history of taking positions in derivatives of the underlying security (MSFT) in the form of stock options. The firm currently holds call options representing 3,500,000 of underlying shares valued at $1,295,595,000 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:MSFT / Microsoft Corporation Historical Put/Call Ratio
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 6,323,428 678,142 12.01 2,340,743 -14.26 2.1518
2026-02-13 2025-12-31 13F MICROSOFT COM 594918104 5,645,286 1,059,211 23.10 2,730,173 14.94 2.0792
2025-11-14 2025-09-30 13F MICROSOFT COM 594918104 4,586,075 -412,554 -8.25 2,375,358 -4.46 1.8749
2025-08-13 2025-06-30 13F MICROSOFT COM 594918104 4,998,629 234,344 4.92 2,486,368 39.02 1.9400
2025-05-14 2025-03-31 13F MICROSOFT COM 594918104 4,764,285 -604,078 -11.25 1,788,465 -20.96 1.6255
2025-02-14 2024-12-31 13F MICROSOFT COM 594918104 5,368,363 527,775 10.90 2,262,765 8.64 1.9235
2024-11-13 2024-09-30 13F MICROSOFT COM 594918104 4,840,588 -1,051,774 -17.85 2,082,905 -20.91 1.5847
2024-08-13 2024-06-30 13F MICROSOFT COM 594918104 5,892,362 -379,497 -6.05 2,633,591 -0.19 2.1393
2024-05-14 2024-03-31 13F MICROSOFT COM 594918104 6,271,859 -122,444 -1.91 2,638,697 9.74 1.5619
2024-02-13 2023-12-31 13F MICROSOFT COM 594918104 6,394,303 -194,578 -2.95 2,404,514 15.58 3.4628
2023-11-13 2023-09-30 13F MICROSOFT COM 594918104 6,588,881 -139,661 -2.08 2,080,439 -9.20 2.9509
2023-08-14 2023-06-30 13F MICROSOFT COM 594918104 6,728,542 -490,299 -6.79 2,291,338 10.10 4.4552
2023-05-12 2023-03-31 13F MICROSOFT COM 594918104 7,218,841 1,146,454 18.88 2,081,192 42.91 4.2807
2023-02-15 2022-12-31 13F MICROSOFT COM 594918104 6,072,387 -325,031 -5.08 1,456,280 -2.26 2.9936
2022-11-14 2022-09-30 13F MICROSOFT COM 594918104 6,397,418 -14,586 -0.23 1,489,959 -9.52 3.1740
2022-08-15 2022-06-30 13F MICROSOFT COM 594918104 6,412,004 -750,226 -10.47 1,646,795 -24.39 3.3183
2022-05-16 2022-03-31 13F MICROSOFT COM 594918104 7,162,230 163,051 2.33 2,177,954 -9.14 3.5553
2022-02-15 2021-12-31 13F MICROSOFT COM 594918104 6,999,179 -657,265 -8.58 2,396,953 9.59 4.2415
2021-11-15 2021-09-30 13F MICROSOFT COM 594918104 7,656,444 241,773 3.26 2,187,204 8.89 4.0988
2021-08-20 2021-06-30 13F/A-1 MICROSOFT COM 594918104 7,414,671 1,655,734 28.75 2,008,656 49.67 3.8836
2021-08-16 2021-06-30 13F MICROSOFT COM 594918104 7,414,671 1,655,734 2,008,656 3.8899
2021-05-17 2021-03-31 13F MICROSOFT COM 594918104 5,758,937 -1,519,851 -20.88 1,342,079 -17.07 2.9004
2021-02-16 2020-12-31 13F MICROSOFT COM 594918104 7,278,788 270,448 3.86 1,618,359 10.61 3.7849
2020-11-16 2020-09-30 13F MICROSOFT COM 594918104 7,008,340 -996,193 -12.45 1,463,112 -8.66 3.8201
2020-08-14 2020-06-30 13F MICROSOFT COM 594918104 8,004,533 292,470 3.79 1,601,836 28.91 4.8078
2020-05-26 2020-03-31 13F/A-1 MICROSOFT COM 594918104 7,712,063 -731,598 -8.66 1,242,559 -7.08 4.4806
2020-05-14 2020-03-31 13F MICROSOFT COM 594918104 7,033,163 -1,410,498 1,133,022 8,566,820.6598
2020-02-14 2019-12-31 13F MICROSOFT COM 594918104 8,443,661 -169,131 -1.96 1,337,219 12.70 4.0707
2019-11-14 2019-09-30 13F MICROSOFT COM 594918104 8,612,792 62,889 0.74 1,186,523 3.37 3.7763
2019-08-14 2019-06-30 13F MICROSOFT COM 594918104 8,549,903 442,636 5.46 1,147,866 20.66 3.7127
2019-05-15 2019-03-31 13F MICROSOFT COM 594918104 8,107,267 28,394 0.35 951,335 15.98 3.2408
2019-02-14 2018-12-31 13F MICROSOFT COM 594918104 8,078,873 -567,059 -6.56 820,255 -17.08 3.2432
2018-11-14 2018-09-30 13F MICROSOFT COM 594918104 8,645,932 162,246 1.91 989,249 17.90 3.2262
2018-08-14 2018-06-30 13F MICROSOFT COM 594918104 8,483,686 170,943 2.06 839,073 10.13 2.8412
2018-05-15 2018-03-31 13F MICROSOFT COM 594918104 8,312,743 -1,366,999 -14.12 761,880 -7.59 2.8069
2018-02-14 2017-12-31 13F MICROSOFT COM 594918104 9,679,742 273,151 2.90 824,415 21.21 2.6791
2017-11-14 2017-09-30 13F MICROSOFT COM 594918104 9,406,591 670,463 7.67 680,154 12.90 2.3827
2017-08-14 2017-06-30 13F MICROSOFT COM 594918104 8,736,128 -1,213,180 -12.19 602,432 -8.14 2.7267
2017-05-15 2017-03-31 13F MICROSOFT COM 594918104 9,949,308 -791,052 -7.37 655,817 2.71 2.3451
2017-04-01 2016-12-31 13F/A-1 MICROSOFT COM 594918104 10,740,360 1,371,730 14.64 638,520 18.41 1.9583
2017-02-14 2016-12-31 13F MICROSOFT COM 594918104 9,385,963 530,771
2016-11-15 2016-09-30 13F MICROSOFT COM 594918104 9,368,630 -857,863 -8.39 539,232 2.48 2.0259
2016-08-12 2016-06-30 13F/A-1 MICROSOFT COM 594918104 10,226,493 174,869 1.74 526,206 -42.76 2.0465
2016-08-12 2016-06-30 13F MICROSOFT COM 594918104 10,226,493 174,869 867,589 2.0906
2016-05-12 2016-03-31 13F MICROSOFT COM 594918104 10,051,624 3,407,829 51.29 919,310 145.16 2.2398
2016-02-12 2015-12-31 13F MICROSOFT COM 594918104 6,643,795 222,056 3.46 374,984 31.49 1.6206
2015-11-12 2015-09-30 13F MICROSOFT COM 594918104 6,421,739 -1,146,065 -15.14 285,180 -14.50 1.1930
2015-08-13 2015-06-30 13F MICROSOFT COM 594918104 7,567,804 -8,895 -0.12 333,525 8.14 1.1316
2015-05-13 2015-03-31 13F MICROSOFT COM 594918104 7,576,699 -3,849,362 -33.69 308,408 -41.79 1.1601
2015-02-12 2014-12-31 13F MICROSOFT COM 594918104 11,426,061 6,563,696 134.99 529,831 135.08 1.6408
2014-11-12 2014-09-30 13F MICROSOFT COM 594918104 4,862,365 -1,571,471 -24.43 225,387 -16.00 0.7356
2014-08-13 2014-06-30 13F MICROSOFT COM 594918104 6,433,836 -779,480 -10.81 268,315 -7.77 0.8452
2014-05-14 2014-03-31 13F MICROSOFT COM 594918104 7,213,316 317,736 4.61 290,910 12.61 1.0001
2014-02-13 2013-12-31 13F MICROSOFT COM 594918104 6,895,580 -862,650 -11.12 258,323 0.15 0.9934
2013-11-13 2013-09-30 13F MICROSOFT COM 594918104 7,758,230 2,177,399 39.02 257,929 33.91 1.1436
2013-08-14 2013-06-30 13F MICROSOFT COM 594918104 5,580,831 5,580,831 192,614 0.8435
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-14 2026-03-31 13F MICROSOFT COM Call 3,500,000 1,295,595 n/a n/a n/a
2025-08-13 2025-06-30 13F MICROSOFT COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-05-14 2025-03-31 13F MICROSOFT COM Call 970,000 364,128 n/a n/a n/a
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.