International Business Machines Corporation
MX ˙ BMV ˙ US4592001014
SecurityMX:IBM / International Business Machines Corporation
InstitutionSpears Abacus Advisors LLC
Latest Disclosed Ownership31,099 shares
Latest Disclosed Value $ 7,538,087
Spears Abacus Advisors LLC reports 6.01% decrease in ownership of IBM / International Business Machines Corporation

On May 15, 2026 - Spears Abacus Advisors LLC filed a 13F-HR/A form disclosing ownership of 31,099 shares of International Business Machines Corporation (MX:IBM) valued at $7,538,087 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 33,088 shares of International Business Machines Corporation. This represents a change in shares of -6.01% 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)
2026-05-15 2026-03-31 13F/A-1 INTERNATIONAL BUSINESS MACHS COM 459200101 31,099 -1,989 -6.01 7,538 -23.08 0.1478
2026-05-14 2026-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 31,099 -1,989 7,522 0.1490
2026-02-17 2025-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 33,088 2 0.01 9,801 4.98 0.1834
2025-11-14 2025-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 33,086 -16,531 -33.32 9,336 -36.18 0.1761
2025-08-14 2025-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 49,617 11,300 29.49 14,626 53.52 0.2954
2025-05-14 2025-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 38,317 1,754 4.80 9,528 18.54 0.2052
2025-02-12 2024-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 36,563 -626 -1.68 8,038 -2.24 0.1651
2024-11-12 2024-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 37,189 -75 -0.20 8,222 27.58 0.1618
2024-08-12 2024-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 37,264 -46,487 -55.51 6,445 -59.71 0.1337
2024-05-10 2024-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 83,751 81,291 3,304.51 15,993 3,878.36 0.3307
2024-02-14 2023-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 2,460 0 0.00 402 16.52 0.0320
2023-11-21 2023-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 2,460 -100 -3.91 345 0.88 0.0296
2023-08-14 2023-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 2,560 0 0.00 343 2.09 0.0279
2023-05-15 2023-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 2,560 0 0.00 336 -6.94 0.0300
2023-02-13 2022-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 2,560 -73 -2.77 361 15.02 0.0344
2022-11-14 2022-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 2,633 0 0.00 313 -15.86 0.0309
2022-08-08 2022-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 2,633 0 0.00 372 8.77 0.0335
2022-05-13 2022-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 2,633 -1,003 -27.59 342 -29.63 0.0254
2022-02-14 2021-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 3,636 353 10.75 486 6.58 0.0328
2021-11-15 2021-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 3,283 -21 -0.64 456 -5.79 0.0330
2021-08-09 2021-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 3,304 650 24.49 484 36.72 0.0348
2021-05-14 2021-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 2,654 -429 -13.92 354 -8.76 0.0274
2021-02-12 2020-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 3,083 -1,379 -30.91 388 -28.55 0.0324
2020-11-16 2020-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 4,462 712 18.99 543 19.87 0.0517
2020-08-12 2020-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 3,750 0 0.00 453 8.89 0.0476
2020-05-15 2020-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 3,750 0 0.00 416 -17.30 0.0509
2020-02-14 2019-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 3,750 0 0.00 503 -7.71 0.0538
2019-11-14 2019-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 3,750 0 0.00 545 5.42 0.0632
2019-08-09 2019-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 3,750 -500 -11.76 517 -13.83 0.0607
2019-05-14 2019-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 4,250 -1,885 -30.73 600 -13.92 0.0765
2019-02-13 2018-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 6,135 -300 -4.66 697 -28.37 0.1023
2018-11-13 2018-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 6,435 -200 -3.01 973 4.96 0.1162
2018-08-10 2018-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 6,635 -885 -11.77 927 -19.67 0.1203
2018-05-15 2018-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 7,520 -1,297 -14.71 1,154 -14.71 0.1501
2018-02-14 2017-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 8,817 300 3.52 1,353 9.47 0.1648
2017-11-13 2017-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 8,517 3,947 86.37 1,236 75.82 0.1479
2017-08-11 2017-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 4,570 0 0.00 703 -11.68 0.0874
2017-05-10 2017-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 4,570 -540 -10.57 796 -6.13 0.1006
2017-02-13 2016-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 5,110 -310 -5.72 848 -1.51 0.1089
2016-11-14 2016-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 5,420 0 0.00 861 4.62 0.1083
2016-08-10 2016-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 5,420 -4,098 -43.06 823 -42.93 0.1044
2016-05-13 2016-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 9,518 0 0.00 1,442 10.08 0.1760
2016-02-16 2015-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 9,518 4,098 75.61 1,310 66.67 0.1499
2015-11-13 2015-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 5,420 70 1.31 786 -9.66 0.0898
2015-08-14 2015-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 5,350 -1,200 -18.32 870 -17.22 0.0963
2015-05-14 2015-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 6,550 -42 -0.64 1,051 -0.66 0.1258
2015-02-13 2014-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 6,592 -238 -3.48 1,058 -18.43 0.1174
2014-11-14 2014-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 6,830 -1 -0.01 1,297 4.77 0.1551
2014-08-14 2014-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 6,831 -413 -5.70 1,238 -11.19 0.1463
2014-05-13 2014-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 7,244 -131 -1.78 1,394 0.80 0.1752
2014-02-14 2013-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 7,375 -26 -0.35 1,383 0.88 0.1727
2013-11-14 2013-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 7,401 3,040 69.71 1,371 64.59 0.1786
2013-08-14 2013-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 4,361 4,361 833 0.1227
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.