Microsoft Corporation
MX ˙ BMV ˙ US5949181045
SecurityMX:MSFT / Microsoft Corporation
InstitutionOmniStar Financial Group, Inc.
Latest Disclosed Ownership3,389 shares
Latest Disclosed Value $ 1,254,516
OmniStar Financial Group, Inc. ownership in MSFT / Microsoft Corporation

On May 15, 2026 - OmniStar Financial Group, Inc. filed a 13F-HR form disclosing ownership of 3,389 shares of Microsoft Corporation (MX:MSFT) valued at $1,254,516 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 3,604 shares of Microsoft Corporation. This represents a change in shares of -5.97% during the quarter.

OmniStar Financial Group, Inc. 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 .

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 3,389 -215 -5.97 1,255 -28.06 0.6505
2026-02-17 2025-12-31 13F MICROSOFT COM 594918104 3,604 608 20.29 1,743 12.38 1.0218
2025-11-17 2025-09-30 13F MICROSOFT COM 594918104 2,996 -229 -7.10 1,552 -3.30 0.9400
2025-08-08 2025-06-30 13F MICROSOFT COM 594918104 3,225 627 24.13 1,604 64.18 1.2005
2025-05-15 2025-03-31 13F MICROSOFT COM 594918104 2,598 1,972 315.02 977 270.08 0.7703
2025-02-14 2024-12-31 13F MICROSOFT COM 594918104 626 162 34.91 264 32.00 0.2124
2024-10-17 2024-09-30 13F MICROSOFT COM 594918104 464 12 2.65 201 -0.99 0.1505
2024-07-26 2024-06-30 13F MICROSOFT COM 594918104 452 452 202 0.1829
2024-04-23 2024-03-31 13F MICROSOFT COM 594918104 0 -1,486 -100.00 0 -100.00
2024-01-17 2023-12-31 13F MICROSOFT COM 594918104 1,486 95 6.83 559 26.53 0.7015
2023-11-07 2023-09-30 13F MICROSOFT COM 594918104 1,391 -329 -19.13 442 -24.87 0.5244
2023-07-24 2023-06-30 13F MICROSOFT COM 594918104 1,720 -140 -7.53 587 9.31 0.6901
2023-05-01 2023-03-31 13F MICROSOFT COM 594918104 1,860 1,860 537 0.6818
2022-11-14 2022-09-30 13F MICROSOFT COM 594918104 0 -2,123 -100.00 0 -100.00
2022-08-03 2022-06-30 13F MICROSOFT COM 594918104 2,123 -132 -5.85 545 -21.58 0.6039
2022-05-05 2022-03-31 13F MICROSOFT COM 594918104 2,255 -196 -8.00 695 -15.66 0.6905
2022-02-11 2021-12-31 13F MICROSOFT COM 594918104 2,451 19 0.78 824 20.29 0.8429
2021-11-12 2021-09-30 13F MICROSOFT COM 594918104 2,432 2,432 685 0.8096
2021-08-17 2021-06-30 13F MICROSOFT COM 594918104 0 -2,551 -100.00 0 -100.00
2021-05-13 2021-03-31 13F MICROSOFT COM 594918104 2,551 -6,012 -70.21 601 -68.45 0.7645
2021-02-09 2020-12-31 13F MICROSOFT COM 594918104 8,563 525 6.53 1,905 12.66 1.3351
2020-10-22 2020-09-30 13F MICROSOFT COM 594918104 8,038 3,082 62.19 1,691 67.59 1.2754
2020-07-06 2020-06-30 13F MICROSOFT COM 594918104 4,956 -571 -10.33 1,009 15.71 0.8337
2020-04-27 2020-03-31 13F MICROSOFT COM 594918104 5,527 -1,347 -19.60 872 -19.56 0.8578
2020-01-13 2019-12-31 13F MICROSOFT COM 594918104 6,874 -5,783 -45.69 1,084 -38.41 0.9138
2019-10-11 2019-09-30 13F MICROSOFT COM 594918104 12,657 -182 -1.42 1,760 2.33 1.5393
2019-07-30 2019-06-30 13F MICROSOFT COM 594918104 12,839 -4,439 -25.69 1,720 -15.60 1.5440
2019-04-12 2019-03-31 13F MICROSOFT COM 594918104 17,278 999 6.14 2,038 23.22 1.7924
2019-02-12 2018-12-31 13F MICROSOFT COM 594918104 16,279 9,274 132.39 1,654 106.49 1.6878
2018-11-16 2018-09-30 13F MICROSOFT COM 594918104 7,005 1,431 25.67 801 45.90 0.6108
2018-08-14 2018-06-30 13F MICROSOFT COM 594918104 5,574 -284 -4.85 549 2.81 0.5226
2018-05-11 2018-03-31 13F MICROSOFT COM 594918104 5,858 -433 -6.88 534 -0.74 0.5103
2018-03-13 2017-12-31 13F MICROSOFT COM 594918104 6,291 6,291 538 0.4929
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
(%)
2021-11-12 2021-09-30 13F MICROSOFT COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-08-17 2021-06-30 13F MICROSOFT COM Call 2,360 639 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.