International Business Machines Corporation
US ˙ NYSE ˙ US4592001014

SecurityIBM / International Business Machines Corporation
InstitutionChicago Capital, LLC
Latest Disclosed Ownership24,285 shares
Latest Disclosed Value $ 5,886,478
Chicago Capital, LLC reports 15.38% increase in ownership of IBM / International Business Machines Corporation

On April 23, 2026 - Chicago Capital, LLC filed a 13F-HR form disclosing ownership of 24,285 shares of International Business Machines Corporation (US:IBM) valued at $5,886,441 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 21,047 shares of International Business Machines Corporation. This represents a change in shares of 15.38% during the quarter. The current value of the position is $7,422,225 USD.

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)
2026-04-23 2026-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 24,285 3,238 15.38 5,886 -5.58 0.1587
2026-01-26 2025-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 21,047 986 4.92 6,234 10.14 0.1540
2025-10-22 2025-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 20,061 6,027 42.95 5,660 36.85 0.1393
2025-07-17 2025-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 14,034 217 1.57 4,137 20.41 0.1021
2025-04-17 2025-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 13,817 625 4.74 3,436 18.49 0.0970
2025-01-24 2024-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 13,192 3,144 31.29 2,900 30.53 0.0769
2024-10-18 2024-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 10,048 1,098 12.27 2,221 43.57 0.0617
2024-08-06 2024-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 8,950 902 11.21 1,548 0.72 0.0460
2024-04-15 2024-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 8,048 69 0.86 1,537 17.79 0.0468
2024-01-22 2023-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 7,979 -323 -3.89 1,305 12.03 0.0470
2023-10-25 2023-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 8,302 -100 -1.19 1,165 3.56 0.0545
2023-07-20 2023-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 8,402 0 0.00 1,124 2.09 0.0507
2023-04-18 2023-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 8,402 -13 -0.15 1,101 -7.09 0.0548
2023-01-20 2022-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 8,415 0 0.00 1,186 18.50 0.0656
2022-10-14 2022-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 8,415 1 0.01 1,000 -15.82 0.0578
2022-07-21 2022-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 8,414 120 1.45 1,188 10.20 0.0656
2022-04-21 2022-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 8,294 0 0.00 1,078 -2.80 0.0464
2022-01-20 2021-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 8,294 0 0.00 1,109 -3.73 0.0413
2021-10-28 2021-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 8,294 -355 -4.10 1,152 -9.15 0.0437
2021-07-22 2021-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 8,649 605 7.52 1,268 18.28 0.0496
2021-04-13 2021-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 8,044 -254 -3.06 1,072 2.58 0.0452
2021-01-25 2020-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 8,298 6 0.07 1,045 3.57 0.0467
2020-10-13 2020-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 8,292 -55 -0.66 1,009 0.10 0.0519
2020-07-29 2020-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 8,347 62 0.75 1,008 9.68 0.0584
2020-04-21 2020-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 8,285 -495 -5.64 919 -21.92 0.0741
2020-01-14 2019-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 8,780 -159 -1.78 1,177 -9.46 0.0718
2019-10-28 2019-09-30 13F INTL BUSINESS MACHINES COMMON 459200101 8,939 0 0.00 1,300 5.43 0.0871
2019-07-11 2019-06-30 13F INTL BUSINESS MACHINES COMMON 459200101 8,939 3,579 66.77 1,233 63.10 0.0789
2019-04-23 2019-03-31 13F INTL BUSINESS MACHINES COMMON 459200101 5,360 -634 -10.58 756 11.01 0.0514
2019-02-11 2018-12-31 13F INTL BUSINESS MACH COM 459200101 5,994 1,266 26.78 681 -4.76 0.0555
2018-11-02 2018-09-30 13F INTL BUSINESS MACH COM 459200101 4,728 510 12.09 715 21.39 0.0495
2018-07-19 2018-06-30 13F INTL BUSINESS MACH COM 459200101 4,218 -45 -1.06 589 -9.94 0.0475
2018-05-09 2018-03-31 13F Intl Business Mach COM 459200101 4,263 4,263 654 0.0873
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.