International Business Machines Corporation
MX ˙ BMV ˙ US4592001014
SecurityMX:IBM / International Business Machines Corporation
InstitutionKorea Investment CORP
Latest Disclosed Ownership580,421 shares
Latest Disclosed Value $ 140,688,246
Korea Investment CORP reports 1.12% decrease in ownership of IBM / International Business Machines Corporation

On May 13, 2026 - Korea Investment CORP filed a 13F-HR form disclosing ownership of 580,421 shares of International Business Machines Corporation (MX:IBM) valued at $140,688,246 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 586,968 shares of International Business Machines Corporation. This represents a change in shares of -1.12% 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)
2026-05-13 2026-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 580,421 -6,547 -1.12 140,688 -19.08 0.2915
2026-02-13 2025-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 586,968 98,797 20.24 173,866 26.23 0.3422
2025-11-13 2025-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 488,171 -147,065 -23.15 137,742 -26.44 0.2833
2025-08-13 2025-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 635,236 73,206 13.03 187,255 33.99 0.4166
2025-05-14 2025-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 562,030 -25,269 -4.30 139,754 8.25 0.3387
2025-02-12 2024-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 587,299 -92,339 -13.59 129,106 -14.08 0.3061
2024-11-13 2024-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 679,638 115,815 20.54 150,254 54.09 0.3566
2024-08-13 2024-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 563,823 -207,795 -26.93 97,513 -33.82 0.2457
2024-05-14 2024-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 771,618 94,396 13.94 147,348 33.03 0.3739
2024-02-13 2023-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 677,222 91,487 15.62 110,760 34.78 0.2908
2023-11-13 2023-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 585,735 6,444 1.11 82,179 6.02 0.2421
2023-08-11 2023-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 579,291 330,207 132.57 77,515 137.39 0.2178
2023-05-12 2023-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 249,084 11,213 4.71 32,652 -2.57 0.0951
2023-02-13 2022-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 237,871 -81,384 -25.49 33,514 -11.65 0.1053
2022-11-10 2022-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 319,255 30,655 10.62 37,931 -6.91 0.1168
2022-08-12 2022-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 288,600 -168,200 -36.82 40,747 -31.39 0.1245
2022-05-13 2022-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 456,800 84,900 22.83 59,393 19.48 0.1469
2022-02-09 2021-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 371,900 -62,400 -14.37 49,708 -17.62 0.1292
2021-11-12 2021-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 434,300 9,900 2.33 60,337 -3.02 0.1799
2021-08-12 2021-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 424,400 -800 -0.19 62,213 9.80 0.1782
2021-05-13 2021-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 425,200 7,800 1.87 56,662 7.84 0.1789
2021-02-10 2020-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 417,400 -72,200 -14.75 52,542 -11.80 0.1579
2020-11-12 2020-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 489,600 -34,000 -6.49 59,570 -5.80 0.2105
2020-08-12 2020-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 523,600 55,500 11.86 63,235 21.78 0.2323
2020-05-14 2020-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 468,100 24,277 5.47 51,926 -12.71 0.2279
2020-02-11 2019-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 443,823 41,800 10.40 59,490 1.76 0.2169
2019-11-12 2019-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 402,023 23,100 6.10 58,462 11.88 0.2471
2019-08-12 2019-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 378,923 -35,900 -8.65 52,253 -10.73 0.2247
2019-05-15 2019-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 414,823 44,322 11.96 58,532 38.98 0.2634
2019-02-13 2018-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 370,501 5,300 1.45 42,115 -23.74 0.2289
2018-11-13 2018-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 365,201 -71,510 -16.37 55,222 -9.49 0.2547
2018-08-13 2018-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 436,711 -119,100 -21.43 61,009 -28.46 0.2780
2018-05-09 2018-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 555,811 -47,077 -7.81 85,278 -7.80 0.3968
2018-02-12 2017-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 602,888 175,572 41.09 92,495 49.20 0.4210
2017-10-25 2017-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 427,316 -12,675 -2.88 61,995 -8.41 0.2864
2017-07-31 2017-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 439,991 -100,726 -18.63 67,684 -28.12 0.3154
2017-04-25 2017-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 540,717 -72,388 -11.81 94,160 -7.48 0.4671
2017-02-13 2016-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 613,105 -46,928 -7.11 101,769 -2.93 0.4891
2016-11-09 2016-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 660,033 -128,042 -16.25 104,846 -12.35 0.5588
2016-08-12 2016-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 788,075 166,400 26.77 119,614 27.04 0.7122
2016-05-12 2016-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 621,675 123,200 24.72 94,152 37.25 0.6885
2016-02-01 2015-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 498,475 50,700 11.32 68,600 5.68 0.4779
2015-11-12 2015-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 447,775 45,375 11.28 64,913 -0.83 0.5169
2015-08-13 2015-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 402,400 -29,400 -6.81 65,454 -5.56 0.5579
2015-05-11 2015-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 431,800 24,400 5.99 69,304 6.03 0.5399
2015-02-12 2014-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 407,400 -58,600 -12.58 65,363 -26.11 0.5365
2014-11-14 2014-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 466,000 -44,000 -8.63 88,461 -4.31 0.7217
2014-08-14 2014-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 510,000 31,300 6.54 92,448 0.33 0.7696
2014-05-14 2014-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 478,700 -81,100 -14.49 92,145 -12.24 0.8159
2014-02-06 2013-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 559,800 109,300 24.26 105,002 25.87 0.9929
2013-11-07 2013-09-30 13F/A-1 INTERNATIONAL BUSINESS MACHS COM 459200101 450,500 45,200 11.15 83,424 7.70 0.8864
2013-11-05 2013-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 406,000 75,183
2013-08-08 2013-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 405,300 405,300 77,457 0.9284
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.