Microsoft Corporation
MX ˙ BMV ˙ US5949181045
SecurityMX:MSFT / Microsoft Corporation
InstitutionMaven Securities LTD
Latest Disclosed Ownership46,523 shares
Latest Disclosed Value $ 17,211,416
Maven Securities LTD ownership in MSFT / Microsoft Corporation

On May 15, 2026 - Maven Securities LTD filed a 13F-HR form disclosing ownership of 46,523 shares of Microsoft Corporation (MX:MSFT) valued at $17,211,416 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 43,261 shares of Microsoft Corporation. This represents a change in shares of 7.54% during the quarter.

Maven Securities LTD 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 0 of underlying shares valued at $0 USD and put options representing 198,100 of underlying shares valued at $73,288,086 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 46,523 3,262 7.54 17,211 -17.76 0.3152
2026-02-13 2025-12-31 13F MICROSOFT COM 594918104 43,261 43,261 20,929 0.4621
2025-11-20 2025-09-30 13F MICROSOFT COM 594918104 0 -3,338 -100.00 0 -100.00
2025-08-14 2025-06-30 13F MICROSOFT COM 594918104 3,338 -711 -17.56 1,660 9.28 0.0395
2025-05-14 2025-03-31 13F MICROSOFT COM 594918104 4,049 -1,688 -29.42 1,520 -37.18 0.0465
2025-02-14 2024-12-31 13F MICROSOFT COM 594918104 5,737 5,737 2,418 0.0587
2024-11-14 2024-09-30 13F MICROSOFT COM 594918104 0 -567 -100.00 0 -100.00
2024-08-29 2024-06-30 13F/A-1 MICROSOFT COM 594918104 567 -1,698 -74.97 253 -73.42 0.0056
2024-08-13 2024-06-30 13F MICROSOFT COM 594918104 567 -1,698 253 0.0093
2024-05-14 2024-03-31 13F MICROSOFT COM 594918104 2,265 2,265 953 0.0561
2024-02-12 2023-12-31 13F MICROSOFT COM 594918104 0 -3,370 -100.00 0 -100.00
2023-11-13 2023-09-30 13F MICROSOFT COM 594918104 3,370 3,370 1,064 0.0121
2023-02-14 2022-12-31 13F MICROSOFT COM 594918104 0 -37,648 -100.00 0 -100.00
2022-11-16 2022-09-30 13F/A-1 MICROSOFT COM 594918104 37,648 30,684 440.61 8,768 390.11 0.1621
2022-11-14 2022-09-30 13F MICROSOFT COM 594918104 37,648 30,684 87,682 0.1575
2022-08-15 2022-06-30 13F MICROSOFT COM 594918104 6,964 4,105 143.58 1,789 102.60 0.0544
2022-05-16 2022-03-31 13F MICROSOFT COM 594918104 2,859 -10,599 -78.76 883 -80.49 0.0307
2022-02-14 2021-12-31 13F MICROSOFT COM 594918104 13,458 -6,157 -31.39 4,526 -18.16 0.1293
2021-11-15 2021-09-30 13F MICROSOFT COM 594918104 19,615 19,615 5,530 0.1785
2021-08-16 2021-06-30 13F MICROSOFT COM 594918104 0 -13,303 -100.00 0 -100.00
2021-05-17 2021-03-31 13F MICROSOFT COM 594918104 13,303 -9,470 -41.58 1,711 -66.26 0.0766
2021-02-12 2020-12-31 13F MICROSOFT COM 594918104 22,773 22,773 71.19 5,071 196.38 0.5011
2020-08-14 2020-06-30 13F MICROSOFT COM 594918104 0 -47,981 -100.00 0 -100.00
2020-05-15 2020-03-31 13F MICROSOFT COM 594918104 47,981 41,601 652.05 7,567 1,745.61 0.9000
2020-02-14 2019-12-31 13F MICROSOFT COM 594918104 6,380 6,380 -86.70 410 -94.58 0.0372
2017-08-14 2017-06-30 13F MICROSOFT COM 594918104 0 -1,160 -100.00 0 -100.00
2017-05-15 2017-03-31 13F MICROSOFT COM 594918104 1,160 0 0.00 76 4.11 0.0494
2017-02-13 2016-12-31 13F MICROSOFT COM 594918104 1,160 1,160 73 0.0654
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 CALL Call 0 -100.00 0 -100.00 n/a n/a n/a
2026-02-13 2025-12-31 13F MICROSOFT CALL Call 24,600 -25.23 11,901 -30.15 n/a n/a n/a
2025-11-20 2025-09-30 13F MICROSOFT CALL Call 32,900 -51.11 17,038 -49.11 n/a n/a n/a
2025-08-14 2025-06-30 13F MICROSOFT CALL Call 67,300 1,625.64 33,476 2,186.54 n/a n/a n/a
2025-05-14 2025-03-31 13F MICROSOFT CALL Call 3,900 -40.91 1,464 -47.36 n/a n/a n/a
2025-02-14 2024-12-31 13F MICROSOFT CALL Call 6,600 -75.37 2,782 -75.88 n/a n/a n/a
2024-11-14 2024-09-30 13F MICROSOFT CALL Call 26,800 -5.30 11,532 -8.82 n/a n/a n/a
2024-08-29 2024-06-30 13F/A MICROSOFT CALL Call 28,300 12,649 n/a n/a n/a
2024-05-14 2024-03-31 13F MICROSOFT CALL Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-02-12 2023-12-31 13F MICROSOFT CALL Call 10,800 -78.99 4,061 -74.98 n/a n/a n/a
2023-11-13 2023-09-30 13F MICROSOFT CALL Call 51,400 -33.59 16,230 -38.43 n/a n/a n/a
2023-08-04 2023-06-30 13F MICROSOFT CALL Call 77,400 -3.37 26,358 14.14 n/a n/a n/a
2023-05-15 2023-03-31 13F MICROSOFT CALL Call 80,100 -47.72 23,093 -37.15 n/a n/a n/a
2023-02-14 2022-12-31 13F MICROSOFT CALL Call 153,200 4.64 36,740 7.75 n/a n/a n/a
2022-11-16 2022-09-30 13F/A MICROSOFT CALL Call 146,400 384.77 34,097 339.62 n/a n/a n/a
2022-11-14 2022-09-30 13F MICROSOFT CALL Call 146,400 340,966 n/a n/a n/a
2022-08-15 2022-06-30 13F MICROSOFT CALL Call 30,200 -66.11 7,756 -71.82 n/a n/a n/a
2022-05-16 2022-03-31 13F MICROSOFT CALL Call 89,100 912.50 27,527 829.97 n/a n/a n/a
2022-02-14 2021-12-31 13F MICROSOFT CALL Call 8,800 -76.53 2,960 -72.00 n/a n/a n/a
2021-11-15 2021-09-30 13F MICROSOFT CALL Call 37,500 -31.44 10,572 -28.65 n/a n/a n/a
2021-08-16 2021-06-30 13F MICROSOFT CALL Call 54,700 14,818 n/a n/a n/a
2021-02-12 2020-12-31 13F MICROSOFT CALL Call 0 -100.00 0 -100.00 n/a n/a n/a
2020-11-13 2020-09-30 13F MICROSOFT CALL Call 38,100 -31.35 8,151 -27.84 n/a n/a n/a
2020-08-14 2020-06-30 13F MICROSOFT CALL Call 55,500 112.64 11,295 174.42 n/a n/a n/a
2020-05-15 2020-03-31 13F MICROSOFT CALL Call 26,100 -57.90 4,116 3.42 n/a n/a n/a
2020-02-14 2019-12-31 13F MICROSOFT CALL Call 62,000 3,980 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 PUT Put 198,100 72.86 73,288 32.19 n/a n/a n/a
2026-02-13 2025-12-31 13F MICROSOFT PUT Put 114,600 116.64 55,441 102.38 n/a n/a n/a
2025-11-20 2025-09-30 13F MICROSOFT PUT Put 52,900 0.57 27,395 4.71 n/a n/a n/a
2025-08-14 2025-06-30 13F MICROSOFT PUT Put 52,600 2,994.12 26,164 4,000.78 n/a n/a n/a
2025-05-14 2025-03-31 13F MICROSOFT PUT Put 1,700 -91.90 638 -92.79 n/a n/a n/a
2025-02-14 2024-12-31 13F MICROSOFT PUT Put 21,000 -49.28 8,852 -50.31 n/a n/a n/a
2024-11-14 2024-09-30 13F MICROSOFT PUT Put 41,400 -17.03 17,814 -20.12 n/a n/a n/a
2024-08-29 2024-06-30 13F/A MICROSOFT PUT Put 49,900 5,798.35 22,303 6,182.25 n/a n/a n/a
2024-05-14 2024-03-31 13F MICROSOFT PUT Put 846 -97.10 356 -96.77 n/a n/a n/a
2024-02-12 2023-12-31 13F MICROSOFT PUT Put 29,200 -39.54 10,980 -28.00 n/a n/a n/a
2023-11-13 2023-09-30 13F MICROSOFT PUT Put 48,300 -51.41 15,251 -54.95 n/a n/a n/a
2023-08-04 2023-06-30 13F MICROSOFT PUT Put 99,400 -11.09 33,850 5.02 n/a n/a n/a
2023-05-15 2023-03-31 13F MICROSOFT PUT Put 111,800 -12.31 32,232 5.41 n/a n/a n/a
2023-02-14 2022-12-31 13F MICROSOFT PUT Put 127,500 -46.63 30,577 -45.04 n/a n/a n/a
2022-11-16 2022-09-30 13F/A MICROSOFT PUT Put 238,900 171.17 55,640 145.90 n/a n/a n/a
2022-11-14 2022-09-30 13F MICROSOFT PUT Put 238,900 556,398 n/a n/a n/a
2022-08-15 2022-06-30 13F MICROSOFT PUT Put 88,100 13.24 22,627 -5.86 n/a n/a n/a
2022-05-16 2022-03-31 13F MICROSOFT PUT Put 77,800 -39.50 24,036 -44.43 n/a n/a n/a
2022-02-14 2021-12-31 13F MICROSOFT PUT Put 128,600 -25.41 43,251 -11.01 n/a n/a n/a
2021-11-15 2021-09-30 13F MICROSOFT PUT Put 172,400 -19.10 48,603 -15.81 n/a n/a n/a
2021-08-16 2021-06-30 13F MICROSOFT PUT Put 213,100 76.99 57,729 103.36 n/a n/a n/a
2021-05-17 2021-03-31 13F MICROSOFT PUT Put 120,400 -43.50 28,387 -50.83 n/a n/a n/a
2021-02-12 2020-12-31 13F MICROSOFT PUT Put 0 -100.00 0 -100.00 n/a n/a n/a
2020-11-13 2020-09-30 13F MICROSOFT PUT Put 79,300 -55.52 16,965 -53.25 n/a n/a n/a
2020-08-14 2020-06-30 13F MICROSOFT PUT Put 178,300 135.22 36,286 203.55 n/a n/a n/a
2020-05-15 2020-03-31 13F MICROSOFT PUT Put 75,800 -68.20 11,954 -21.88 n/a n/a n/a
2020-02-14 2019-12-31 13F MICROSOFT PUT Put 238,400 15,303 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.