Microsoft Corporation
CH ˙ SWX ˙ US5949181045
SecurityCH:MSFT / Microsoft Corporation
InstitutionBoothbay Fund Management, Llc
Latest Disclosed Ownership15,268 shares
Latest Disclosed Value $ 5,651,756
Boothbay Fund Management, Llc ownership in MSFT / Microsoft Corporation

On May 15, 2026 - Boothbay Fund Management, Llc filed a 13F-HR form disclosing ownership of 15,268 shares of Microsoft Corporation (CH:MSFT) valued at $5,651,756 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 32,825 shares of Microsoft Corporation. This represents a change in shares of -53.49% during the quarter.

Boothbay Fund Management, Llc 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 122,300 of underlying shares valued at $45,271,791 USD and put options representing 14,900 of underlying shares valued at $5,515,533 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.

CH: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 15,268 -17,557 -53.49 5,652 -64.40 0.0732
2026-02-17 2025-12-31 13F MICROSOFT COM 594918104 32,825 -18,440 -35.97 15,875 -40.22 0.2368
2025-11-14 2025-09-30 13F MICROSOFT COM 594918104 51,265 -16,406 -24.24 26,553 -21.12 0.3861
2025-08-14 2025-06-30 13F MICROSOFT COM 594918104 67,671 54,532 415.04 33,660 582.48 0.6539
2025-05-15 2025-03-31 13F MICROSOFT COM 594918104 13,139 -37,097 -73.85 4,932 -76.71 0.1300
2025-02-14 2024-12-31 13F MICROSOFT COM 594918104 50,236 12,258 32.28 21,174 29.58 0.5222
2024-11-14 2024-09-30 13F MICROSOFT COM 594918104 37,978 21,881 135.93 16,342 127.15 0.3717
2024-08-14 2024-06-30 13F MICROSOFT COM 594918104 16,097 -48,765 -75.18 7,195 -73.64 0.1704
2024-05-15 2024-03-31 13F MICROSOFT COM 594918104 64,862 -6,208 -8.74 27,289 2.11 0.5255
2024-02-14 2023-12-31 13F MICROSOFT COM 594918104 71,070 8,480 13.55 26,725 35.23 0.6820
2023-11-14 2023-09-30 13F MICROSOFT COM 594918104 62,590 -41,122 -39.65 19,763 -44.05 0.4695
2023-08-14 2023-06-30 13F MICROSOFT COM 594918104 103,712 10,680 11.48 35,318 31.69 0.7747
2023-05-15 2023-03-31 13F MICROSOFT COM 594918104 93,032 86,961 1,432.40 26,821 1,743.30 0.5502
2023-02-14 2022-12-31 13F MICROSOFT COM 594918104 6,071 -5,812 -48.91 1,456 -47.43 0.0337
2022-11-14 2022-09-30 13F MICROSOFT COM 594918104 11,883 6,900 138.47 2,768 116.25 0.0691
2022-08-15 2022-06-30 13F MICROSOFT COM 594918104 4,983 -14,364 -74.24 1,280 -78.54 0.0337
2022-05-16 2022-03-31 13F MICROSOFT COM 594918104 19,347 -33,952 -63.70 5,965 -66.72 0.1387
2022-02-14 2021-12-31 13F MICROSOFT COM 594918104 53,299 -24,702 -31.67 17,926 -18.48 0.4217
2021-11-15 2021-09-30 13F MICROSOFT COM 594918104 78,001 9,669 14.15 21,990 18.79 0.6084
2021-08-17 2021-06-30 13F/A-1 MICROSOFT COM 594918104 68,332 4,596 7.21 18,511 23.18 0.5947
2021-08-16 2021-06-30 13F MICROSOFT COM 594918104 68,332 4,596 18,511 0.5823
2021-05-17 2021-03-31 13F MICROSOFT COM 594918104 63,736 23,305 57.64 15,027 67.10 0.5629
2021-02-12 2020-12-31 13F MICROSOFT COM 594918104 40,431 -27,379 -40.38 8,993 -36.94 0.3347
2020-11-16 2020-09-30 13F MICROSOFT COM 594918104 67,810 -2,750 -3.90 14,262 -0.68 0.8628
2020-08-14 2020-06-30 13F MICROSOFT COM 594918104 70,560 6,819 10.70 14,360 42.84 0.9819
2020-05-15 2020-03-31 13F MICROSOFT COM 594918104 63,741 2,080 3.37 10,053 3.38 0.8331
2020-02-14 2019-12-31 13F MICROSOFT COM 594918104 61,661 -1,593 -2.52 9,724 10.58 0.8459
2019-11-14 2019-09-30 13F Microsoft COM 594918104 63,254 15,442 32.30 8,794 37.30 0.8063
2019-08-14 2019-06-30 13F MICROSOFT COM 594918104 47,812 -22,228 -31.74 6,405 -22.47 0.5827
2019-05-15 2019-03-31 13F MICROSOFT COM 594918104 70,040 34,964 99.68 8,261 131.86 0.8004
2019-02-14 2018-12-31 13F MICROSOFT COM 594918104 35,076 -28,947 -45.21 3,563 -51.34 0.5193
2018-11-14 2018-09-30 13F MICROSOFT COM 594918104 64,023 9,403 17.22 7,322 35.95 0.7236
2018-08-14 2018-06-30 13F MICROSOFT COM 594918104 54,620 -25,615 -31.92 5,386 -26.45 0.4688
2018-05-14 2018-03-31 13F MICROSOFT COM 594918104 80,235 34,949 77.17 7,323 89.03 0.8672
2018-02-14 2017-12-31 13F MICROSOFT COM 594918104 45,286 -13,646 -23.16 3,874 -11.75 0.5667
2017-11-14 2017-09-30 13F MICROSOFT COM 594918104 58,932 20,404 52.96 4,390 65.29 0.7296
2017-08-14 2017-06-30 13F Microsoft COM 594918104 38,528 38,528 -34.62 2,656 -39.50 0.5522
2017-05-15 2017-03-31 13F MICROSOFT COM 594918104 0 -3,891 -100.00 0 -100.00
2017-07-18 2016-12-31 13F/A-2 Microsoft COM 594918104 3,891 -10,282 -72.55 242 -32.96 0.0551
2017-02-16 2016-12-31 13F/A-1 MICROSOFT COM 594918104 3,891 0 242 0.0598
2017-02-15 2016-12-31 13F MICROSOFT COM 594918104 3,891 242
2016-11-14 2016-09-30 13F Microsoft EQUITIES 594918104 14,173 7,116 100.84 1 -100.00 0.2537
2017-07-18 2016-06-30 13F/A-1 MICROSOFT COM 594918104 7,057 -759 -9.71 361 -16.44 0.1785
2016-08-15 2016-06-30 13F MICROSOFT COM 594918104 7,057 361
2017-07-18 2016-03-31 13F/A-4 Microsoft COM 594918104 7,816 2,243 40.25 432 39.81 0.3227
2016-05-16 2016-03-31 13F MICROSOFT COM 594918104 7,816 432
2017-07-18 2015-12-31 13F/A-3 MICROSOFT COM 594918104 5,573 -304 -5.17 309 18.85 0.1743
2016-06-09 2015-12-31 13F/A-2 MICROSOFT COM 594918104 5,573 0 309 0.9354
2016-06-09 2015-09-30 13F/A-2 MICROSOFT COM 594918104 5,877 -1,572 -21.10 260 -20.97 0.8287
2016-06-09 2015-06-30 13F/A-3 MICROSOFT COM 594918104 7,449 7,449 26.75 329 26.54 1.6273
2016-06-09 2015-03-31 13F/A-2 MICROSOFT COM 594918104 0 -38,328 -100.00 0 -100.00
2017-07-18 2014-12-31 13F/A-3 MICROSOFT COM 594918104 38,328 38,328 445 0.4282
2016-06-09 2014-12-31 13F/A-1 MICROSOFT COM 594918104 9,582 -28,746 445 0.4334
2015-02-17 2014-12-31 13F MICROSOFT COM 594918104 9,582 445 0.3846
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 122,300 155.32 45,272 95.43 n/a n/a n/a
2026-02-17 2025-12-31 13F MICROSOFT COM Call 47,900 -74.12 23,165 -75.84 n/a n/a n/a
2025-11-14 2025-09-30 13F MICROSOFT COM Call 185,100 1,042.59 95,873 1,089.77 n/a n/a n/a
2025-08-14 2025-06-30 13F MICROSOFT COM Call 16,200 47.27 8,058 95.16 n/a n/a n/a
2025-05-15 2025-03-31 13F MICROSOFT COM Call 11,000 -40.54 4,129 -47.04 n/a n/a n/a
2025-02-14 2024-12-31 13F MICROSOFT COM Call 18,500 7,798 n/a n/a n/a
2023-11-14 2023-09-30 13F MICROSOFT COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2023-08-14 2023-06-30 13F MICROSOFT COM Call 13,000 8.33 4,427 27.98 n/a n/a n/a
2023-05-15 2023-03-31 13F MICROSOFT COM Call 12,000 -49.79 3,460 -39.64 n/a n/a n/a
2023-02-14 2022-12-31 13F MICROSOFT COM Call 23,900 129.81 5,732 136.62 n/a n/a n/a
2022-11-14 2022-09-30 13F MICROSOFT COM Call 10,400 4.00 2,422 -5.69 n/a n/a n/a
2022-08-15 2022-06-30 13F MICROSOFT COM Call 10,000 -73.33 2,568 -77.79 n/a n/a n/a
2022-05-16 2022-03-31 13F MICROSOFT COM Call 37,500 11.94 11,562 2.62 n/a n/a n/a
2022-02-14 2021-12-31 13F MICROSOFT COM Call 33,500 -82.42 11,267 -79.03 n/a n/a n/a
2021-11-15 2021-09-30 13F MICROSOFT COM Call 190,600 53,734 n/a n/a n/a
2021-05-17 2021-03-31 13F MICROSOFT CALL Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-02-12 2020-12-31 13F MICROSOFT CALL Call 63 0.00 1,401 5.74 n/a n/a n/a
2020-11-16 2020-09-30 13F MICROSOFT CALL Call 63 0.00 1,325 -5.42 n/a n/a n/a
2020-08-14 2020-06-30 13F MICROSOFT CALL Call 0 -100.00 0 -100.00 n/a n/a n/a
2020-05-15 2020-03-31 13F MICROSOFT CALL Call 30 473 n/a n/a n/a
2016-06-09 2015-09-30 13F/A MICROSOFT COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2015-08-17 2015-06-30 13F/A MICROSOFT COM Call 9,700 428 n/a n/a n/a
2017-07-18 2015-06-30 13F/A MICROSOFT COM Call 9,700 61.67 428 75.41 n/a n/a n/a
2015-08-14 2015-06-30 13F MICROSOFT COM Call 9,700 428 n/a n/a n/a
2017-07-18 2015-03-31 13F/A MICROSOFT COM Call 6,000 244 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 14,900 -67.25 5,516 -74.94 n/a n/a n/a
2026-02-17 2025-12-31 13F MICROSOFT COM Put 45,500 -30.75 22,005 -35.34 n/a n/a n/a
2025-11-14 2025-09-30 13F MICROSOFT COM Put 65,700 1,628.95 34,029 1,700.48 n/a n/a n/a
2025-08-14 2025-06-30 13F MICROSOFT COM Put 3,800 1,890 n/a n/a n/a
2024-05-15 2024-03-31 13F MICROSOFT COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2024-02-14 2023-12-31 13F MICROSOFT COM Put 8,000 3,008 n/a n/a n/a
2023-11-14 2023-09-30 13F MICROSOFT COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2023-08-14 2023-06-30 13F MICROSOFT COM Put 90,400 30,785 n/a n/a n/a
2023-05-15 2023-03-31 13F MICROSOFT COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2023-02-14 2022-12-31 13F MICROSOFT COM Put 65,000 117.39 15,588 123.84 n/a n/a n/a
2022-11-14 2022-09-30 13F MICROSOFT COM Put 29,900 -59.92 6,964 -63.65 n/a n/a n/a
2022-08-15 2022-06-30 13F MICROSOFT COM Put 74,600 19.74 19,160 -0.25 n/a n/a n/a
2022-05-16 2022-03-31 13F MICROSOFT COM Put 62,300 19,208 n/a n/a n/a
2021-11-15 2021-09-30 13F MICROSOFT COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2021-08-17 2021-06-30 13F/A MICROSOFT COM Put 26,200 7,098 n/a n/a n/a
2021-08-16 2021-06-30 13F MICROSOFT COM Put 26,200 7,098 n/a n/a n/a
2021-05-17 2021-03-31 13F MICROSOFT PUT Put 0 -100.00 0 -100.00 n/a n/a n/a
2021-02-12 2020-12-31 13F MICROSOFT PUT Put 40 890 n/a n/a n/a
2018-11-14 2018-09-30 13F MICROSOFT PUT Put 0 -100.00 0 -100.00 n/a n/a n/a
2018-08-14 2018-06-30 13F MICROSOFT PUT Put 137 1,351 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.