Microsoft Corporation
DE ˙ XTRA ˙ US5949181045
368,85 € ↓ -11,05 (-2,91%)
2026-06-03
AKTIENPREIS
SecurityDE:MSF / Microsoft Corporation
InstitutionRBF Capital, LLC
Latest Disclosed Ownership50,000 shares
Latest Disclosed Value $ 18,508,500
RBF Capital, LLC ownership in MSF / Microsoft Corporation

On May 18, 2026 - RBF Capital, LLC filed a 13F-HR/A form disclosing ownership of 50,000 shares of Microsoft Corporation (DE:MSF) valued at $16,100,000 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on February 17, 2026 disclosing 50,000 shares of Microsoft Corporation. This represents a change in shares of 0.00% during the quarter. The current value of the position is $18,442,500 USD.

RBF Capital, LLC has a history of taking positions in derivatives of the underlying security (MSF) in the form of stock options.

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.

DE:MSF / 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)
2026-05-18 2026-03-31 13F/A-1 MICROSOFT COM 594918104 50,000 0 0.00 18,508 -23.46 0.9048
2026-05-14 2026-03-31 13F MICROSOFT COM 594918104 50,000 0 18,508 0.9682
2026-02-17 2025-12-31 13F/A-1 MICROSOFT COM 594918104 50,000 0 0.00 24,181 -6.63 1.0733
2026-02-17 2025-12-31 13F MICROSOFT COM 594918104 50,000 0 24,181 1.0733
2025-11-14 2025-09-30 13F MICROSOFT COM 594918104 50,000 0 0.00 25,898 4.13 1.1548
2025-08-14 2025-06-30 13F MICROSOFT COM 594918104 50,000 0 0.00 24,870 32.51 1.1830
2025-05-15 2025-03-31 13F MICROSOFT COM 594918104 50,000 0 0.00 18,770 -10.94 1.1270
2025-02-14 2024-12-31 13F MICROSOFT COM 594918104 50,000 0 0.00 21,075 -2.05 1.0905
2024-11-14 2024-09-30 13F MICROSOFT COM 594918104 50,000 0 0.00 21,515 -3.72 1.0784
2024-08-14 2024-06-30 13F MICROSOFT COM 594918104 50,000 0 0.00 22,348 6.23 1.2843
2024-05-15 2024-03-31 13F MICROSOFT COM 594918104 50,000 0 0.00 21,036 11.88 1.1754
2024-02-14 2023-12-31 13F MICROSOFT COM 594918104 50,000 0 0.00 18,802 19.10 1.1371
2023-11-14 2023-09-30 13F MICROSOFT COM 594918104 50,000 -5,000 -9.09 15,788 -15.71 1.0372
2023-08-14 2023-06-30 13F MICROSOFT COM 594918104 55,000 0 0.00 18,730 18.12 1.1674
2023-05-16 2023-03-31 13F MICROSOFT COM 594918104 55,000 0 0.00 15,856 20.21 1.1517
2023-02-14 2022-12-31 13F MICROSOFT COM 594918104 55,000 0 0.00 13,190 2.97 0.9912
2022-11-14 2022-09-30 13F MICROSOFT COM 594918104 55,000 0 0.00 12,810 -9.32 1.0794
2022-08-15 2022-06-30 13F MICROSOFT COM 594918104 55,000 0 0.00 14,126 -18.17 0.9826
2022-05-16 2022-03-31 13F MICROSOFT COM 594918104 55,000 0 0.00 17,262 -6.68 1.1037
2022-02-14 2021-12-31 13F MICROSOFT COM 594918104 55,000 0 0.00 18,498 19.30 1.1387
2021-11-15 2021-09-30 13F MICROSOFT COM 594918104 55,000 0 0.00 15,506 4.07 0.8650
2021-08-16 2021-06-30 13F MICROSOFT COM 594918104 55,000 0 0.00 14,899 14.90 0.8328
2021-05-17 2021-03-31 13F MICROSOFT COM 594918104 55,000 0 0.00 12,967 6.00 0.8088
2021-03-02 2020-12-31 13F/A-1 MICROSOFT COM 594918104 55,000 0 0.00 12,233 5.75 0.9357
2021-02-11 2020-12-31 13F MICROSOFT COM 594918104 55,000 0 12,233 1,061,132.4355
2020-11-16 2020-09-30 13F/A-1 MICROSOFT COM 594918104 55,000 0 0.00 11,568 3.35 1.1664
2020-08-14 2020-06-30 13F MICROSOFT COM 594918104 55,000 0 0.00 11,193 29.04 1.2070
2020-05-18 2020-03-31 13F MICROSOFT COM 594918104 55,000 0 0.00 8,674 0.00 1.1351
2020-02-13 2019-12-31 13F MICROSOFT COM 594918104 55,000 0 0.00 8,674 13.43 0.8288
2019-11-13 2019-09-30 13F MICROSOFT COM 594918104 55,000 0 0.00 7,647 3.79 0.8570
2019-08-13 2019-06-30 13F MICROSOFT COM 594918104 55,000 0 0.00 7,368 13.58 0.7413
2019-05-15 2019-03-31 13F MICROSOFT COM 594918104 55,000 0 0.00 6,487 16.13 0.7616
2019-02-14 2018-12-31 13F MICROSOFT COM 594918104 55,000 0 0.00 5,586 -11.19 0.7291
2018-11-14 2018-09-30 13F MICROSOFT COM 594918104 55,000 0 0.00 6,290 15.97 0.6821
2018-08-14 2018-06-30 13F MICROSOFT COM 594918104 55,000 0 0.00 5,424 8.05 0.6375
2018-05-15 2018-03-31 13F MICROSOFT COM 594918104 55,000 10,000 22.22 5,020 30.42 0.5984
2018-02-14 2017-12-31 13F MICROSOFT COM 594918104 45,000 0 0.00 3,849 14.83 0.4247
2017-11-14 2017-09-30 13F MICROSOFT COM 594918104 45,000 0 0.00 3,352 8.06 0.4240
2017-08-14 2017-06-30 13F MICROSOFT COM 594918104 45,000 30,000 200.00 3,102 213.97 0.4068
2017-05-15 2017-03-31 13F MICROSOFT COM 594918104 15,000 0 0.00 988 6.01 0.1353
2017-02-14 2016-12-31 13F MICROSOFT COM 594918104 15,000 0 0.00 932 7.87 0.1329
2016-11-14 2016-09-30 13F MICROSOFT COM 594918104 15,000 0 0.00 864 12.50 0.1480
2016-08-15 2016-06-30 13F MICROSOFT COM 594918104 15,000 -10,000 -40.00 768 -44.39 0.1526
2016-05-16 2016-03-31 13F MICROSOFT CORPORATION CMN Common Stock 594918104 25,000 20,000 400.00 1,381 398.56 0.2644
2016-02-16 2015-12-31 13F MICROSOFT CORPORATION CMN Common Stock 594918104 5,000 -1,760 -26.04 277 -7.36 0.0521
2015-11-16 2015-09-30 13F MICROSOFT CORPORATION CMN Common Stock 594918104 6,760 0 0.00 299 0.34 0.0623
2015-08-14 2015-06-30 13F MICROSOFT CORPORATION CMN Common Stock 594918104 6,760 0 0.00 298 8.36 0.0563
2015-05-14 2015-03-31 13F MICROSOFT CORPORATION CMN Common Stock 594918104 6,760 500 7.99 275 -5.50 0.0558
2015-02-13 2014-12-31 13F MICROSOFT CORPORATION CMN Common Stock 594918104 6,260 0 0.00 291 0.34 0.0603
2014-11-14 2014-09-30 13F MICROSOFT CORPORATION CMN Common Stock 594918104 6,260 -300 -4.57 290 5.84 0.0665
2014-08-14 2014-06-30 13F MICROSOFT CORPORATION CMN Common Stock 594918104 6,560 0 0.00 274 1.86 0.0659
2014-05-13 2014-03-31 13F MICROSOFT CORPORATION CMN Common Stock 594918104 6,560 0 0.00 269 9.80 0.0657
2014-02-14 2013-12-31 13F MICROSOFT CORPORATION CMN Common Stock 594918104 6,560 6,560 -34.40 245 -28.99 0.0579
2013-11-14 2013-09-30 13F MICROSOFT CORPORATION CMN Common Stock 594918104 0 -10,000 -100.00 0 -100.00
2013-08-14 2013-06-30 13F MICROSOFT CORPORATION CMN Common Stock 594918104 10,000 10,000 345 0.0980
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
(%)
2023-02-14 2022-12-31 13F MICROSOFT COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2022-11-14 2022-09-30 13F MICROSOFT COM Put 1,500 349 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.