Microsoft Corporation
MX ˙ BMV ˙ US5949181045
SecurityMX:MSFT / Microsoft Corporation
InstitutionSamlyn Capital, Llc
Latest Disclosed Ownership252,873 shares
Latest Disclosed Value $ 93,605,999
Samlyn Capital, Llc ownership in MSFT / Microsoft Corporation

On May 15, 2026 - Samlyn Capital, Llc filed a 13F-HR form disclosing ownership of 252,873 shares of Microsoft Corporation (MX:MSFT) valued at $93,605,999 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 765,616 shares of Microsoft Corporation. This represents a change in shares of -66.97% during the quarter.

Samlyn Capital, Llc has a history of taking positions in derivatives of the underlying security (MSFT) 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.

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 252,873 -512,743 -66.97 93,606 -74.72 0.8267
2026-02-17 2025-12-31 13F MICROSOFT COM 594918104 765,616 6,499 0.86 370,267 -5.83 5.8985
2025-11-14 2025-09-30 13F MICROSOFT COM 594918104 759,117 -80,399 -9.58 393,185 -5.84 5.4091
2025-08-14 2025-06-30 13F MICROSOFT COM 594918104 839,516 440,577 110.44 417,584 178.84 5.7371
2025-05-15 2025-03-31 13F MICROSOFT COM 594918104 398,939 -131,477 -24.79 149,758 -33.02 2.2181
2025-02-14 2024-12-31 13F MICROSOFT COM 594918104 530,416 -183,494 -25.70 223,570 -27.22 3.3763
2024-11-14 2024-09-30 13F MICROSOFT COM 594918104 713,910 197,769 38.32 307,195 33.16 4.6493
2024-08-14 2024-06-30 13F MICROSOFT COM 594918104 516,141 -75,258 -12.73 230,689 -7.28 3.8401
2024-05-15 2024-03-31 13F MICROSOFT COM 594918104 591,399 212,633 56.14 248,813 74.69 4.1661
2024-02-14 2023-12-31 13F MICROSOFT COM 594918104 378,766 -185,404 -32.86 142,431 -20.04 2.8358
2023-11-14 2023-09-30 13F MICROSOFT COM 594918104 564,170 564,170 178,137 2.9122
2023-02-14 2022-12-31 13F MICROSOFT COM 594918104 0 -306,250 -100.00 0 -100.00
2022-11-14 2022-09-30 13F MICROSOFT COM 594918104 306,250 60,671 24.71 71,326 13.08 1.3258
2022-08-15 2022-06-30 13F MICROSOFT COM 594918104 245,579 -444,032 -64.39 63,073 -70.33 1.2603
2022-05-16 2022-03-31 13F MICROSOFT COM 594918104 689,611 436,354 172.30 212,614 149.62 3.0581
2022-02-14 2021-12-31 13F MICROSOFT COM 594918104 253,257 253,257 85,175 1.1750
2021-11-15 2021-09-30 13F MICROSOFT COM 594918104 0 -2,555 -100.00 0 -100.00
2021-08-16 2021-06-30 13F MICROSOFT COM 594918104 2,555 -6,529 -71.87 693 -67.65 0.0102
2021-05-17 2021-03-31 13F MICROSOFT COM 594918104 9,084 4,588 102.05 2,142 114.20 0.0296
2021-02-16 2020-12-31 13F MICROSOFT COM 594918104 4,496 1,399 45.17 1,000 53.61 0.0143
2020-11-16 2020-09-30 13F MICROSOFT COM 594918104 3,097 3,097 651 0.0117
2020-02-14 2019-12-31 13F MICROSOFT COM 594918104 0 -791,281 -100.00 0 -100.00
2019-11-14 2019-09-30 13F MICROSOFT COM 594918104 791,281 265,768 50.57 110,012 56.27 2.6720
2019-08-14 2019-06-30 13F MICROSOFT COM 594918104 525,513 525,513 70,398 1.4852
2019-02-14 2018-12-31 13F MICROSOFT COM 594918104 0 -282,012 -100.00 0 -100.00
2018-11-14 2018-09-30 13F MICROSOFT COM 594918104 282,012 282,012 32,254 0.7297
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
(%)
2026-02-17 2025-12-31 13F MICROSOFT COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-11-14 2025-09-30 13F MICROSOFT COM Put 169,200 87,637 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.