International Business Machines Corporation
MX ˙ BMV ˙ US4592001014
SecurityMX:IBM / International Business Machines Corporation
InstitutionGabelli Funds Llc
Latest Disclosed Ownership20,000 shares
Latest Disclosed Value $ 4,847,800
Gabelli Funds Llc reports 1.77% decrease in ownership of IBM / International Business Machines Corporation

On May 14, 2026 - Gabelli Funds Llc filed a 13F-HR form disclosing ownership of 20,000 shares of International Business Machines Corporation (MX:IBM) valued at $4,847,800 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 20,360 shares of International Business Machines Corporation. This represents a change in shares of -1.77% 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)
2026-05-14 2026-03-31 13F INTL BUSINESS MACHINES EQUITY 459200101 20,000 -360 -1.77 4,848 -19.62 0.0327
2026-02-05 2025-12-31 13F INTL BUSINESS MACHINES EQUITY 459200101 20,360 -970 -4.55 6,031 0.20 0.0408
2025-11-12 2025-09-30 13F INTL BUSINESS MACHINES EQUITY 459200101 21,330 -685 -3.11 6,018 -7.26 0.0407
2025-08-13 2025-06-30 13F INTL BUSINESS MACHINES EQUITY 459200101 22,015 -1,465 -6.24 6,490 11.15 0.0461
2025-05-14 2025-03-31 13F INTL BUSINESS MACHINES EQUITY 459200101 23,480 -3,715 -13.66 5,839 -2.34 0.0445
2025-02-13 2024-12-31 13F INTL BUSINESS MACHINES EQUITY 459200101 27,195 -2,985 -9.89 5,978 -10.40 0.0449
2024-11-13 2024-09-30 13F INTL BUSINESS MACHINES EQUITY 459200101 30,180 -1,880 -5.86 6,672 20.35 0.0481
2024-08-13 2024-06-30 13F INTL BUSINESS MACHINES EQUITY 459200101 32,060 -90 -0.28 5,545 -9.69 0.0421
2024-05-14 2024-03-31 13F INTL BUSINESS MACHINES EQUITY 459200101 32,150 -135 -0.42 6,139 16.27 0.0452
2024-02-13 2023-12-31 13F INTL BUSINESS MACHINES EQUITY 459200101 32,285 -1,015 -3.05 5,280 13.04 0.0407
2023-11-08 2023-09-30 13F INTL BUSINESS MACHINES EQUITY 459200101 33,300 10 0.03 4,672 4.87 0.0379
2023-08-10 2023-06-30 13F INTL BUSINESS MACHINES EQUITY 459200101 33,290 1,040 3.22 4,455 5.37 0.0338
2023-05-12 2023-03-31 13F INTL BUSINESS MACHINES EQUITY 459200101 32,250 -350 -1.07 4,228 -7.97 0.0320
2023-02-13 2022-12-31 13F INTL BUSINESS MACHINES EQUITY 459200101 32,600 -775 -2.32 4,593 15.84 0.0357
2022-11-14 2022-09-30 13F/A-1 INTERNATIONAL BUSINESS COM 459200101 33,375 -1,200 -3.47 3,965 -18.78 0.0327
2022-11-10 2022-09-30 13F INTERNATIONAL BUSINESS COM 459200101 33,375 -1,200 3,965 0.0327
2022-08-12 2022-06-30 13F INTERNATIONAL BUSINESS COM 459200101 34,575 125 0.36 4,882 9.00 0.0375
2022-05-18 2022-03-31 13F/A-1 INTERNATIONAL BUSINESS COM 459200101 34,450 -1,350 -3.77 4,479 -6.39 0.0294
2022-05-13 2022-03-31 13F INTERNATIONAL BUSINESS COM 459200101 34,450 -1,350 4,479 0.0302
2022-02-11 2021-12-31 13F INTERNATIONAL BUSINESS COM 459200101 35,800 2,400 7.19 4,785 3.13 0.0302
2021-11-12 2021-09-30 13F INTERNATIONAL BUSINESS COM 459200101 33,400 -100 -0.30 4,640 -5.52 0.0307
2021-08-13 2021-06-30 13F INTERNATIONAL BUSINESS COM 459200101 33,500 -1,400 -4.01 4,911 5.59 0.0313
2021-05-14 2021-03-31 13F INTERNATIONAL BUSINESS COM 459200101 34,900 675 1.97 4,651 7.96 0.0312
2021-02-05 2020-12-31 13F INTERNATIONAL BUSINESS COM 459200101 34,225 1,475 4.50 4,308 8.11 0.0307
2020-11-06 2020-09-30 13F INTERNATIONAL BUSINESS COM 459200101 32,750 500 1.55 3,985 2.31 0.0310
2020-08-13 2020-06-30 13F INTERNATIONAL BUSINESS COM 459200101 32,250 -1,825 -5.36 3,895 3.04 0.0317
2020-05-14 2020-03-31 13F INTERNATIONAL BUSINESS COM 459200101 34,075 2,750 8.78 3,780 -9.98 0.0337
2020-02-14 2019-12-31 13F INTERNATIONAL BUSINESS COM 459200101 31,325 -500 -1.57 4,199 -9.27 0.0272
2019-11-01 2019-09-30 13F INTERNATIONAL BUSINESS COM 459200101 31,825 200 0.63 4,628 6.12 0.0306
2019-08-02 2019-06-30 13F INTERNATIONAL BUSINESS COM 459200101 31,625 -5,375 -14.53 4,361 -16.47 0.0280
2019-05-02 2019-03-31 13F INTERNATIONAL BUSINESS COM 459200101 37,000 -11,000 -22.92 5,221 -4.31 0.0328
2019-01-30 2018-12-31 13F INTERNATIONAL BUSINESS COM 459200101 48,000 -14,000 -22.58 5,456 -41.80 0.0374
2018-11-02 2018-09-30 13F INTERNATIONAL BUSINESS COM 459200101 62,000 -5,000 -7.46 9,375 0.16 0.0538
2018-08-10 2018-06-30 13F INTERNATIONAL BUSINESS COM 459200101 67,000 0 0.00 9,360 -8.95 0.0554
2018-05-09 2018-03-31 13F INTERNATIONAL BUSINESS COM 459200101 67,000 -1,000 -1.47 10,280 -1.47 0.0613
2018-02-02 2017-12-31 13F INTERNATIONAL BUSINESS COM 459200101 68,000 -11,000 -13.92 10,433 -8.97 0.0601
2017-11-01 2017-09-30 13F INTERNATIONAL BUSINESS COM 459200101 79,000 -500 -0.63 11,461 -6.28 0.0657
2017-08-03 2017-06-30 13F INTERNATIONAL BUSINESS COM 459200101 79,500 -1,000 -1.24 12,229 -12.76 0.0727
2017-05-04 2017-03-31 13F INTERNATIONAL BUSINESS COM 459200101 80,500 -2,500 -3.01 14,018 1.75 0.0826
2017-02-10 2016-12-31 13F INTERNATIONAL BUSINESS COM 459200101 83,000 -8,500 -9.29 13,777 -5.21 0.0815
2016-11-10 2016-09-30 13F INTERNATIONAL BUSINESS COM 459200101 91,500 -12,500 -12.02 14,535 -7.92 0.0862
2016-08-04 2016-06-30 13F INTERNATIONAL BUSINESS COM 459200101 104,000 -25,000 -19.38 15,785 -19.20 0.0931
2016-05-05 2016-03-31 13F INTERNATIONAL BUSINESS COM 459200101 129,000 -15,000 -10.42 19,537 -1.41 0.1178
2016-02-05 2015-12-31 13F INTERNATIONAL BUSINESS COM 459200101 144,000 -6,000 -4.00 19,817 -8.87 0.1200
2015-10-23 2015-09-30 13F INTERNATIONAL BUSINESS COM 459200101 150,000 -21,000 -12.28 21,746 -21.82 0.1292
2015-08-05 2015-06-30 13F INTERNATIONAL BUSINESS COM 459200101 171,000 -48,000 -21.92 27,815 -20.87 0.1456
2015-05-01 2015-03-31 13F INTERNATIONAL BUSINESS COM 459200101 219,000 -4,000 -1.79 35,150 -1.76 0.1784
2015-02-05 2014-12-31 13F INTERNATIONAL BUSINESS COM 459200101 223,000 -43,200 -16.23 35,778 -29.20 0.1740
2014-10-30 2014-09-30 13F INTERNATIONAL BUSINESS COM 459200101 266,200 -6,200 -2.28 50,533 2.34 0.2565
2014-08-06 2014-06-30 13F INTERNATIONAL BUSINESS COM 459200101 272,400 -2,000 -0.73 49,378 -6.51 0.2441
2014-05-16 2014-03-31 13F/A-1 INTERNATIONAL BUSINESS COM 459200101 274,400 -13,500 -4.69 52,819 -2.19 0.2742
2014-05-02 2014-03-31 13F INTERNATIONAL BUSINESS COM 459200101 274,400 52,819
2014-02-07 2013-12-31 13F INTERNATIONAL BUSINESS COM 459200101 287,900 40,000 16.14 54,001 17.63 0.2875
2013-11-07 2013-09-30 13F INTERNATIONAL BUSINESS COM 459200101 247,900 -8,700 -3.39 45,906 -6.39 0.2613
2013-08-02 2013-06-30 13F/A-1 INTERNATIONAL BUSINESS COM 459200101 256,600 256,600 49,039 0.2975
2013-08-01 2013-06-30 13F INTERNATIONAL BUSINESS COM 459200101 256,600 49,039 0.2975
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.