Strategy Inc
MX ˙ BMV ˙ US5949724083
SecurityMX:MSTR / Strategy Inc
InstitutionRhumbline Advisers
Latest Disclosed Ownership339,745 shares
Latest Disclosed Value $ 42,400,128
Rhumbline Advisers reports 21.42% increase in ownership of MSTR / Strategy Inc

On May 12, 2026 - Rhumbline Advisers filed a 13F-HR form disclosing ownership of 339,745 shares of Strategy Inc (MX:MSTR) valued at $42,400,128 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 279,818 shares of Strategy Inc. This represents a change in shares of 21.42% during the quarter.

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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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)
2026-05-12 2026-03-31 13F STRATEGY COM 594972408 339,745 59,927 21.42 42,400 -0.28 0.0363
2026-02-13 2025-12-31 13F STRATEGY COM 594972408 279,818 -33,747 -10.76 42,518 -57.92 0.0344
2025-11-06 2025-09-30 13F STRATEGY COM 594972408 313,565 43,509 16.11 101,034 -7.45 0.0811
2025-08-12 2025-06-30 13F MICROSTRATEGY INC CL A COM 594972408 270,056 1,650 0.61 109,165 41.09 0.0935
2025-05-29 2025-03-31 13F/A-1 MICROSTRATEGY INC CL A COM 594972408 268,406 70,359 35.53 77,373 34.89 0.0724
2025-04-08 2025-03-31 13F MICROSTRATEGY INC CL A COM 594972408 268,406 70,359 77,373 0.0724
2025-05-29 2024-12-31 13F/A-1 MICROSTRATEGY INC CL A COM 594972408 198,047 11,628 6.24 57,358 82.49 0.0513
2025-01-30 2024-12-31 13F MICROSTRATEGY INC CL A COM 594972408 198,047 11,628 57,358 0.0513
2024-11-12 2024-09-30 13F MICROSTRATEGY INC CL A COM 594972408 186,419 167,859 904.41 31,430 22.94 0.0284
2024-08-01 2024-06-30 13F MICROSTRATEGY INC CL A COM 594972408 18,560 -3,772 -16.89 25,566 -32.84 0.0240
2024-05-09 2024-03-31 13F MICROSTRATEGY INC CL A COM 594972408 22,332 4,002 21.83 38,066 228.81 0.0366
2024-02-08 2023-12-31 13F MICROSTRATEGY INC CL A COM 594972408 18,330 1,191 6.95 11,578 105.78 0.0121
2023-11-09 2023-09-30 13F MICROSTRATEGY INC CL A COM 594972408 17,139 476 2.86 5,626 -1.38 0.0065
2023-08-08 2023-06-30 13F MICROSTRATEGY INC CL A COM 594972408 16,663 1,193 7.71 5,706 142,525.00 0.0064
2023-05-11 2023-03-31 13F MICROSTRATEGY INC CL A COM 594972408 15,470 411 2.73 5 -99.81 0.0056
2023-02-14 2022-12-31 13F MICROSTRATEGY INC CL A COM 594972408 15,059 559 3.86 2,132 -30.73 0.0029
2022-11-10 2022-09-30 13F MICROSTRATEGY INC CL A COM 594972408 14,500 1,036 7.69 3,078 39.15 0.0046
2022-08-11 2022-06-30 13F MICROSTRATEGY INC CL A COM 594972408 13,464 2,654 24.55 2,212 -57.92 0.0032
2022-05-12 2022-03-31 13F MICROSTRATEGY INC CL A COM 594972408 10,810 1,078 11.08 5,257 -0.79 0.0068
2022-02-10 2021-12-31 13F MICROSTRATEGY INC CL A COM 594972408 9,732 413 4.43 5,299 -1.69 0.0065
2021-11-12 2021-09-30 13F MICROSTRATEGY INC CL A COM 594972408 9,319 -13,049 -58.34 5,390 -63.74 0.0073
2021-08-05 2021-06-30 13F MICROSTRATEGY INC CL A COM 594972408 22,368 -851 -3.67 14,864 -5.69 0.0195
2021-05-06 2021-03-31 13F MICROSTRATEGY INC CL A COM 594972408 23,219 75 0.32 15,761 75.26 0.0214
2021-02-10 2020-12-31 13F MICROSTRATEGY INC CL A COM 594972408 23,144 -307 -1.31 8,993 154.69 0.0124
2020-11-12 2020-09-30 13F MICROSTRATEGY INC CL A COM 594972408 23,451 -2,821 -10.74 3,531 13.61 0.0055
2020-08-13 2020-06-30 13F MICROSTRATEGY INC CL A COM 594972408 26,272 -2,299 -8.05 3,108 -7.88 0.0052
2020-05-06 2020-03-31 13F MICROSTRATEGY INC CL A COM 594972408 28,571 431 1.53 3,374 -15.94 0.0071
2020-02-05 2019-12-31 13F MICROSTRATEGY INC CL A COM 594972408 28,140 1,726 6.53 4,014 2.42 0.0067
2019-10-23 2019-09-30 13F MICROSTRATEGY INC CL A COM 594972408 26,414 224 0.86 3,919 4.42 0.0072
2019-08-14 2019-06-30 13F MICROSTRATEGY INC CL A COM 594972408 26,190 -1,306 -4.75 3,753 -5.37 0.0070
2019-05-01 2019-03-31 13F MICROSTRATEGY INC CL A COM 594972408 27,496 -2,257 -7.59 3,966 4.34 0.0077
2019-01-31 2018-12-31 13F MICROSTRATEGY INC CL A COM 594972408 29,753 4,808 19.27 3,801 8.35 0.0083
2018-11-07 2018-09-30 13F MICROSTRATEGY INC CL A COM 594972408 24,945 50 0.20 3,508 10.31 0.0068
2018-08-06 2018-06-30 13F MICROSTRATEGY INC CL A COM 594972408 24,895 806 3.35 3,180 2.35 0.0064
2018-05-02 2018-03-31 13F MICROSTRATEGY INC CL A COM 594972408 24,089 520 2.21 3,107 0.39 0.0065
2018-02-09 2017-12-31 13F MICROSTRATEGY INC CL A COM 594972408 23,569 2,894 14.00 3,095 17.23 0.0063
2017-11-06 2017-09-30 13F MICROSTRATEGY INC CL A COM 594972408 20,675 444 2.19 2,640 -31.92 0.0057
2017-08-02 2017-06-30 13F MICROSTRATEGY INC CL A COM 594972408 20,231 -266 -1.30 3,878 0.75 0.0089
2017-05-02 2017-03-31 13F MICROSTRATEGY INC CL A COM 594972408 20,497 5,232 34.27 3,849 27.75 0.0090
2017-01-27 2016-12-31 13F MICROSTRATEGY INC CL A COM 594972408 15,265 160 1.06 3,013 19.14 0.0076
2016-11-08 2016-09-30 13F MICROSTRATEGY INC CL A COM 594972408 15,105 873 6.13 2,529 1.53 0.0070
2016-08-11 2016-06-30 13F MICROSTRATEGY INC CL A COM 594972408 14,232 1,119 8.53 2,491 5.69 0.0074
2016-05-02 2016-03-31 13F MICROSTRATEGY INC CL A COMMON COM 594972408 13,113 334 2.61 2,357 2.88 0.0073
2016-02-03 2015-12-31 13F MICROSTRATEGY INC CL A COMMON COM 594972408 12,779 820 6.86 2,291 -2.51 0.0074
2015-11-04 2015-09-30 13F MICROSTRATEGY INC CL A COMMON COM 594972408 11,959 395 3.42 2,350 19.47 0.0080
2015-08-04 2015-06-30 13F MICROSTRATEGY INC CL A COMMON COM 594972408 11,564 -349 -2.93 1,967 -2.43 0.0063
2015-05-12 2015-03-31 13F MICROSTRATEGY INC CL A COMMON COM 594972408 11,913 1,381 13.11 2,016 17.89 0.0058
2015-02-06 2014-12-31 13F MICROSTRATEGY INC CL A COMMON COM 594972408 10,532 -214 -1.99 1,710 21.62 0.0050
2014-11-12 2014-09-30 13F MICROSTRATEGY INC CL A COMMON COM 594972408 10,746 -231 -2.10 1,406 -8.94 0.0042
2014-08-06 2014-06-30 13F MICROSTRATEGY INC CL A COMMON COM 594972408 10,977 -405 -3.56 1,544 17.59 0.0045
2014-05-06 2014-03-31 13F MICROSTRATEGY INC CL A COMMON COM 594972408 11,382 -440 -3.72 1,313 -10.62 0.0039
2014-02-03 2013-12-31 13F MICROSTRATEGY INC CL A COMMON COM 594972408 11,822 153 1.31 1,469 21.30 0.0043
2013-11-05 2013-09-30 13F MICROSTRATEGY INC CL A COMMON COM 594972408 11,669 -156 -1.32 1,211 17.80 0.0038
2013-08-07 2013-06-30 13F MICROSTRATEGY INC CL A COMMON COM 594972408 11,825 11,825 1,028 0.0033
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.