Microsoft Corporation
MX ˙ BMV ˙ US5949181045
SecurityMX:MSFT / Microsoft Corporation
InstitutionLMR Partners LLP
Latest Disclosed Ownership64,794 shares
Latest Disclosed Value $ 23,984,795
LMR Partners LLP ownership in MSFT / Microsoft Corporation

On May 15, 2026 - LMR Partners LLP filed a 13F-HR form disclosing ownership of 64,794 shares of Microsoft Corporation (MX:MSFT) valued at $23,984,795 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 26,500 shares of Microsoft Corporation. This represents a change in shares of 144.51% during the quarter.

LMR Partners LLP 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 294,600 of underlying shares valued at $109,052,082 USD and put options representing 115,900 of underlying shares valued at $42,902,703 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)
2026-05-15 2026-03-31 13F MICROSOFT COM 594918104 64,794 38,294 144.51 23,985 87.16 0.0424
2026-02-17 2025-12-31 13F MICROSOFT COM 594918104 26,500 -105,559 -79.93 12,816 -81.26 0.0241
2025-11-14 2025-09-30 13F MICROSOFT COM 594918104 132,059 111,255 534.78 68,400 560.99 0.3016
2025-08-14 2025-06-30 13F MICROSOFT COM 594918104 20,804 664 3.30 10,348 36.88 0.0741
2025-05-15 2025-03-31 13F MICROSOFT COM 594918104 20,140 -57,431 -74.04 7,560 -76.88 0.0707
2025-02-14 2024-12-31 13F MICROSOFT COM 594918104 77,571 24,270 45.53 32,696 42.56 0.2750
2024-11-07 2024-09-30 13F MICROSOFT COM 594918104 53,301 3,927 7.95 22,935 3.93 0.1827
2024-08-14 2024-06-30 13F MICROSOFT COM 594918104 49,374 -201,431 -80.31 22,068 -79.09 0.1864
2024-05-15 2024-03-31 13F MICROSOFT COM 594918104 250,805 144,440 135.80 105,519 163.81 1.0734
2024-02-14 2023-12-31 13F MICROSOFT COM 594918104 106,365 -50,539 -32.21 39,997 -19.27 0.4568
2023-11-14 2023-09-30 13F MICROSOFT COM 594918104 156,904 1,902 1.23 49,542 -6.14 0.5569
2023-08-14 2023-06-30 13F MICROSOFT COM 594918104 155,002 16,977 12.30 52,784 32.65 0.5859
2023-05-15 2023-03-31 13F MICROSOFT COM 594918104 138,025 138,025 39,793 0.6165
2022-11-14 2022-09-30 13F MICROSOFT COM 594918104 0 -166,753 -100.00 0 -100.00
2022-08-15 2022-06-30 13F MICROSOFT COM 594918104 166,753 166,753 42,827 0.7192
2022-02-14 2021-12-31 13F MICROSOFT COM 594918104 0 -52,354 -100.00 0 -100.00
2021-11-15 2021-09-30 13F MICROSOFT COM 594918104 52,354 52,354 14,760 0.1664
2021-08-16 2021-06-30 13F MICROSOFT COM 594918104 0 -46,015 -100.00 0 -100.00
2021-05-17 2021-03-31 13F MICROSOFT COM 594918104 46,015 12,745 38.31 10,849 46.61 0.2702
2021-02-16 2020-12-31 13F MICROSOFT COM 594918104 33,270 -158,781 -82.68 7,400 -81.68 0.1150
2020-11-16 2020-09-30 13F MICROSOFT COM 594918104 192,051 -2,074 -1.07 40,394 2.25 0.8304
2020-08-14 2020-06-30 13F MICROSOFT COM 594918104 194,125 168,393 654.41 39,506 858.19 0.9836
2020-08-14 2020-03-31 13F/A-1 MICROSOFT COM 594918104 25,732 8,244 47.14 4,123 49.49 0.1924
2020-05-15 2020-03-31 13F MICROSOFT COM 594918104 25,732 8,244 4,123 4,284.8420
2020-02-14 2019-12-31 13F MICROSOFT COM 594918104 17,488 -10,996 -38.60 2,758 -30.35 0.0045
2019-11-14 2019-09-30 13F MICROSOFT COM 594918104 28,484 22,620 385.74 3,960 403.82 0.1960
2019-08-14 2019-06-30 13F MICROSOFT COM 594918104 5,864 -80,623 -93.22 786 -92.29 0.0286
2019-05-15 2019-03-31 13F MICROSOFT COM 594918104 86,487 -139,578 -61.74 10,200 -55.58 0.5202
2019-02-14 2018-12-31 13F MICROSOFT COM 594918104 226,065 226,065 22,961 1.1255
2018-11-14 2018-09-30 13F MICROSOFT COM 594918104 0 -17,665 -100.00 0 -100.00
2018-08-03 2018-06-30 13F MICROSOFT COM 594918104 17,665 -22,607 -56.14 1,742 -49.43 0.0903
2018-05-04 2018-03-31 13F MICROSOFT COM 594918104 40,272 0 0.00 3,445 0.00 0.3539
2018-01-30 2017-12-31 13F MICROSOFT COM 594918104 40,272 -14,470 -26.43 3,445 -15.52 0.3539
2017-11-09 2017-09-30 13F MICROSOFT COM 594918104 54,742 54,742 4,078 0.4414
2017-05-11 2017-03-31 13F MICROSOFT COM 594918104 0 -34,595 -100.00 0 -100.00
2017-02-07 2016-12-31 13F MICROSOFT COM 594918104 34,595 34,595 2,149 0.3301
2016-11-04 2016-09-30 13F/A-1 MICROSOFT COM 594918104 0 -14,944 -100.00 0 -100.00
2016-11-04 2016-06-30 13F/A-1 MICROSOFT COM 594918104 14,944 -336,226 -95.74 765 -96.06 0.1185
2016-07-28 2016-06-30 13F MICROSOFT COM 594918104 14,944 765
2016-05-04 2016-03-31 13F MICROSOFT COM 594918104 351,170 183,615 109.58 19,395 108.64 2.1192
2016-02-03 2015-12-31 13F MICROSOFT COM 594918104 167,555 167,555 0.00 9,296 3.0261
2015-04-20 2015-03-31 13F MICROSOFT COM 594918104 0 -26,595 -100.00 0 -100.00
2015-01-20 2014-12-31 13F MICROSOFT COM 594918104 26,595 26,595 1,235 0.1614
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
(%)
2026-05-15 2026-03-31 13F MICROSOFT COM Call 294,600 19.80 109,052 -8.30 n/a n/a n/a
2026-02-17 2025-12-31 13F MICROSOFT COM Call 245,900 2,310.78 118,922 2,151.03 n/a n/a n/a
2025-11-14 2025-09-30 13F MICROSOFT COM Call 10,200 -63.83 5,283 -62.33 n/a n/a n/a
2025-08-14 2025-06-30 13F MICROSOFT COM Call 28,200 23.68 14,027 63.89 n/a n/a n/a
2025-05-15 2025-03-31 13F MICROSOFT COM Call 22,800 123.53 8,559 99.07 n/a n/a n/a
2025-02-14 2024-12-31 13F MICROSOFT COM Call 10,200 0.00 4,299 -2.05 n/a n/a n/a
2024-11-07 2024-09-30 13F MICROSOFT COM Call 10,200 -91.33 4,389 -91.65 n/a n/a n/a
2024-08-14 2024-06-30 13F MICROSOFT COM Call 117,600 385.95 52,561 416.27 n/a n/a n/a
2024-05-15 2024-03-31 13F MICROSOFT COM Call 24,200 -34.42 10,181 -26.62 n/a n/a n/a
2024-02-14 2023-12-31 13F MICROSOFT COM Call 36,900 210.08 13,876 269.31 n/a n/a n/a
2023-11-14 2023-09-30 13F MICROSOFT COM Call 11,900 3,757 n/a n/a n/a
Disclosed Put 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
(%)
2026-05-15 2026-03-31 13F MICROSOFT COM Put 115,900 58.12 42,903 21.02 n/a n/a n/a
2026-02-17 2025-12-31 13F MICROSOFT COM Put 73,300 521.19 35,449 480.09 n/a n/a n/a
2025-11-14 2025-09-30 13F MICROSOFT COM Put 11,800 -41.58 6,112 -39.18 n/a n/a n/a
2025-08-14 2025-06-30 13F MICROSOFT COM Put 20,200 -28.62 10,048 -5.42 n/a n/a n/a
2025-05-15 2025-03-31 13F MICROSOFT COM Put 28,300 -86.87 10,624 -88.30 n/a n/a n/a
2025-02-14 2024-12-31 13F MICROSOFT COM Put 215,500 0.00 90,833 -2.04 n/a n/a n/a
2024-11-07 2024-09-30 13F MICROSOFT COM Put 215,500 1,016.58 92,730 974.99 n/a n/a n/a
2024-08-14 2024-06-30 13F MICROSOFT COM Put 19,300 -32.52 8,626 -28.31 n/a n/a n/a
2024-05-15 2024-03-31 13F MICROSOFT COM Put 28,600 113.43 12,033 138.82 n/a n/a n/a
2024-02-14 2023-12-31 13F MICROSOFT COM Put 13,400 0.00 5,039 19.07 n/a n/a n/a
2023-11-14 2023-09-30 13F MICROSOFT COM Put 13,400 4,231 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.