International Business Machines Corporation
MX ˙ BMV ˙ US4592001014
SecurityMX:IBM / International Business Machines Corporation
InstitutionWinslow Asset Management Inc
Latest Disclosed Ownership43,400 shares
Latest Disclosed Value $ 10,520
Winslow Asset Management Inc reports 1.41% increase in ownership of IBM / International Business Machines Corporation

On May 5, 2026 - Winslow Asset Management Inc filed a 13F-HR form disclosing ownership of 43,400 shares of International Business Machines Corporation (MX:IBM) valued at $10,520 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 42,798 shares of International Business Machines Corporation. This represents a change in shares of 1.41% 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)
2026-05-05 2026-03-31 13F INTERNATIONAL BUS MACH COM COM 459200101 43,400 602 1.41 11 -16.67 2.0439
2026-02-02 2025-12-31 13F INTERNATIONAL BUS MACH COM COM 459200101 42,798 -119 -0.28 13 0.00 2.3382
2025-11-06 2025-09-30 13F INTERNATIONAL BUS MACH COM COM 459200101 42,917 31 0.07 12 0.00 2.2722
2025-08-13 2025-06-30 13F INTERNATIONAL BUS MACH COM COM 459200101 42,886 301 0.71 13 20.00 2.5502
2025-05-02 2025-03-31 13F INTERNATIONAL BUS MACH COM COM 459200101 42,585 -1,350 -3.07 11 11.11 2.3359
2025-02-06 2024-12-31 13F INTERNATIONAL BUS MACH COM COM 459200101 43,935 760 1.76 10 0.00 1.9247
2024-11-04 2024-09-30 13F INTERNATIONAL BUS MACH COM COM 459200101 43,175 921 2.18 10 28.57 1.7649
2024-08-09 2024-06-30 13F INTERNATIONAL BUS MACH COM COM 459200101 42,254 2,003 4.98 7 0.00 1.4395
2024-05-02 2024-03-31 13F INTERNATIONAL BUS MACH COM COM 459200101 40,251 86 0.21 8 16.67 1.4473
2024-02-16 2023-12-31 13F INTERNATIONAL BUS MACH COM COM 459200101 40,165 1,771 4.61 7 20.00 1.3360
2023-11-07 2023-09-30 13F INTERNATIONAL BUS MACH COM COM 459200101 38,394 -494 -1.27 5 0.00 1.2480
2023-08-09 2023-06-30 13F INTERNATIONAL BUS MACH COM COM 459200101 38,888 -2,418 -5.85 5 0.00 1.1208
2023-05-03 2023-03-31 13F INTERNATIONAL BUS MACH COM COM 459200101 41,306 533 1.31 5 0.00 1.2639
2023-01-23 2022-12-31 13F INTERNATIONAL BUS MACH COM COM 459200101 40,773 3,932 10.67 6 -99.89 1.3592
2022-11-08 2022-09-30 13F INTERNATIONAL BUS MACH COM COM 459200101 36,841 -218 -0.59 4,377 -16.34 1.1399
2022-08-03 2022-06-30 13F INTERNATIONAL BUS MACH COM COM 459200101 37,059 1,052 2.92 5,232 11.75 1.2631
2022-05-09 2022-03-31 13F INTERNATIONAL BUS MACH COM COM 459200101 36,007 -27 -0.07 4,682 -2.78 0.9248
2022-02-07 2021-12-31 13F INTERNATIONAL BUS MACH COM COM 459200101 36,034 -2,766 -7.13 4,816 -10.65 0.8504
2021-11-12 2021-09-30 13F INTERNATIONAL BUS MACH COM COM 459200101 38,800 222 0.58 5,390 -4.69 1.0409
2021-08-10 2021-06-30 13F INTERNATIONAL BUS MACH COM COM 459200101 38,578 36,467 1,727.48 5,655 1,912.46 1.0547
2021-05-10 2021-03-31 13F INTERNATIONAL BUS MACH COM COM 459200101 2,111 2,111 281 0.0569
2019-02-13 2018-12-31 13F INTERNATIONAL BUS MACH COM COM 459200101 0 -1,411 -100.00 0 -100.00
2018-10-18 2018-09-30 13F INTERNATIONAL BUS MACH COM COM 459200101 1,411 -194 -12.09 213 -4.91 0.0388
2018-07-13 2018-06-30 13F INTERNATIONAL BUS MACH COM COM 459200101 1,605 -200 -11.08 224 -19.13 0.0415
2018-04-26 2018-03-31 13F INTERNATIONAL BUS MACH COM COM 459200101 1,805 -310 -14.66 277 -14.51 0.0532
2018-01-11 2017-12-31 13F INTERNATIONAL BUS MACH COM COM 459200101 2,115 -150 -6.62 324 -1.52 0.0596
2017-10-13 2017-09-30 13F INTERNATIONAL BUS MACH COM COM 459200101 2,265 -430 -15.96 329 -20.72 0.0637
2017-08-04 2017-06-30 13F INTERNATIONAL BUS MACH COM COM 459200101 2,695 -100 -3.58 415 -14.78 0.0843
2017-04-12 2017-03-31 13F INTERNATIONAL BUS MACH COM COM 459200101 2,795 0 0.00 487 4.96 0.0997
2017-02-07 2016-12-31 13F INTERNATIONAL BUS MACH COM COM 459200101 2,795 0 0.00 464 4.50 0.0974
2016-11-08 2016-09-30 13F INTERNATIONAL BUS MACH COM COM 459200101 2,795 -700 -20.03 444 -16.23 0.0979
2016-08-09 2016-06-30 13F INTERNATIONAL BUS MACH COM COM 459200101 3,495 79 2.31 530 2.51 0.1187
2016-05-10 2016-03-31 13F INTERNATIONAL BUS MACH COM COM 459200101 3,416 0 0.00 517 10.00 0.1156
2016-02-08 2015-12-31 13F INTERNATIONAL BUS MACH COM COM 459200101 3,416 0 0.00 470 -5.05 0.0929
2015-11-12 2015-09-30 13F INTERNATIONAL BUS MACH COM COM 459200101 3,416 0 0.00 495 -10.97 0.0980
2015-08-07 2015-06-30 13F INTERNATIONAL BUS MACH COM COM 459200101 3,416 0 0.00 556 1.46 0.0959
2015-05-07 2015-03-31 13F INTERNATIONAL BUS MACH COM COM 459200101 3,416 0 0.00 548 0.00 0.0922
2015-02-09 2014-12-31 13F INTERNATIONAL BUS MACH COM COM 459200101 3,416 0 0.00 548 -15.43 0.0898
2014-11-03 2014-09-30 13F INTERNATIONAL BUS MACH COM COM 459200101 3,416 0 0.00 648 4.68 0.1149
2014-07-31 2014-06-30 13F INTERNATIONAL BUS MACH COM COM 459200101 3,416 -22 -0.64 619 -6.50 0.1024
2014-05-07 2014-03-31 13F INTERNATIONAL BUS MACH COM COM 459200101 3,438 12 0.35 662 2.95 0.1150
2014-02-06 2013-12-31 13F INTERNATIONAL BUS MACH COM COM 459200101 3,426 0 0.00 643 1.42 0.1152
2013-10-24 2013-09-30 13F INTERNATIONAL BUS MACH COM COM 459200101 3,426 0 0.00 634 -3.21 0.1204
2013-08-06 2013-06-30 13F INTERNATIONAL BUS MACH COM COM 459200101 3,426 3,426 655 0.1299
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.