International Business Machines Corporation
MX ˙ BMV ˙ US4592001014
SecurityMX:IBM / International Business Machines Corporation
InstitutionGrove Bank & Trust
Latest Disclosed Ownership8,932 shares
Latest Disclosed Value $ 2,165,027
Grove Bank & Trust reports 1.21% decrease in ownership of IBM / International Business Machines Corporation

On April 8, 2026 - Grove Bank & Trust filed a 13F-HR form disclosing ownership of 8,932 shares of International Business Machines Corporation (MX:IBM) valued at $2,165,027 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 8, 2026 disclosing 9,041 shares of International Business Machines Corporation. This represents a change in shares of -1.21% 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)
2026-04-08 2026-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 8,932 -109 -1.21 2,165 -19.16 0.2448
2026-01-08 2025-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 9,041 558 6.58 2,678 11.91 0.3012
2025-10-06 2025-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 8,483 -38 -0.45 2,394 -4.70 0.2800
2025-07-11 2025-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 8,521 42 0.50 2,512 19.12 0.3133
2025-04-17 2025-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 8,479 1,050 14.13 2,108 29.09 0.2818
2025-01-16 2024-12-31 13F INTL BUSINESS MCHN COM 459200101 7,429 14 0.19 1,633 -0.37 0.2267
2024-10-11 2024-09-30 13F INTL BUSINESS MCHN COM 459200101 7,415 0 0.00 1,639 27.85 0.2421
2024-07-24 2024-06-30 13F INTL BUSINESS MCHN COM 459200101 7,415 -15 -0.20 1,282 -9.59 0.2059
2024-04-30 2024-03-31 13F INTL BUSINESS MCHN COM 459200101 7,430 -63 -0.84 1,419 15.76 0.2390
2024-01-30 2023-12-31 13F INTL BUSINESS MCHN COM 459200101 7,493 2,531 51.01 1,225 76.01 0.2255
2023-10-30 2023-09-30 13F INTL BUSINESS MCHN COM 459200101 4,962 -63 -1.25 696 3.57 0.1419
2023-07-27 2023-06-30 13F INTL BUSINESS MCHN COM 459200101 5,025 1 0.02 672 2.13 0.1358
2023-05-10 2023-03-31 13F INTL BUSINESS MCHN COM 459200101 5,024 62 1.25 659 0.1392
2023-02-03 2022-12-31 13F IBM COM 459200101 4,962 0 0.00 1 -100.00 0.1542
2022-10-28 2022-09-30 13F INTERNATIONAL BUSINESS MACHS COMMON STOCK 459200101 4,962 -463 -8.53 590 -22.98 0.1462
2022-07-29 2022-06-30 13F INTERNATIONAL BUSINESS MACHS COMMON STOCK 459200101 5,425 -301 -5.26 766 2.96 0.1834
2022-04-22 2022-03-31 13F INTERNATIONAL BUSINESS MACHS COMMON STOCK 459200101 5,726 -1,027 -15.21 744 -17.61 0.1463
2022-01-31 2021-12-31 13F INTERNATIONAL BUSINESS MACHS COMMON STOCK 459200101 6,753 49 0.73 903 -3.01 0.1725
2021-10-28 2021-09-30 13F INTERNATIONAL BUSINESS MACHS COMMON STOCK 459200101 6,704 -81 -1.19 931 -6.43 0.1959
2021-07-28 2021-06-30 13F INTERNATIONAL BUSINESS MACHS COMMON STOCK 459200101 6,785 277 4.26 995 14.76 0.2155
2021-04-23 2021-03-31 13F INTERNATIONAL BUSINESS MACHS COMMON STOCK 459200101 6,508 -46 -0.70 867 5.09 0.2039
2021-02-03 2020-12-31 13F INTERNATIONAL BUSINESS MACHS COMMON STOCK 459200101 6,554 106 1.64 825 5.10 0.2143
2020-10-30 2020-09-30 13F INTERNATIONAL BUSINESS MACHS COMMON STOCK 459200101 6,448 -177 -2.67 785 -1.87 0.2404
2020-07-31 2020-06-30 13F INTERNATIONAL BUSINESS MACHS COMMON STOCK 459200101 6,625 2,526 61.62 800 75.82 0.2635
2020-05-05 2020-03-31 13F INTERNATIONAL BUSINESS MACHS COMMON STOCK 459200101 4,099 -746 -15.40 455 -29.89 0.1796
2020-02-11 2019-12-31 13F INTERNATIONAL BUSINESS MACHS COMMON STOCK 459200101 4,845 0 0.00 649 -7.94 0.1950
2019-10-30 2019-09-30 13F INTERNATIONAL BUSINESS MACHS COMMON STOCK 459200101 4,845 20 0.41 705 6.02 0.2273
2019-07-24 2019-06-30 13F INTERNATIONAL BUSINESS MACHS COMMON STOCK 459200101 4,825 0 0.00 665 -2.35 0.2430
2019-04-26 2019-03-31 13F INTERNATIONAL BUSINESS MACHS COMMON STOCK 459200101 4,825 0 0.00 681 24.27 0.2613
2019-02-13 2018-12-31 13F INTERNATIONAL BUSINESS MACHS COMMON STOCK 459200101 4,825 -996 -17.11 548 -37.73 0.2557
2018-11-07 2018-09-30 13F INTERNATIONAL BUSINESS MACHS COMMON STOCK 459200101 5,821 0 0.00 880 8.24 0.3613
2018-08-03 2018-06-30 13F INTERNATIONAL BUSINESS MACHS COMMON STOCK 459200101 5,821 -372 -6.01 813 -14.42 0.3465
2018-05-07 2018-03-31 13F INTERNATIONAL BUSINESS MACHS COMMON STOCK 459200101 6,193 0 0.00 950 0.00 0.4204
2018-02-02 2017-12-31 13F INTERNATIONAL BUSINESS MACHINES COMMON STOCK 459200101 6,193 0 0.00 950 5.79 0.4147
2017-11-13 2017-09-30 13F INTERNATIONAL BUSINESS MACHINES COMMON STOCK 459200101 6,193 5,372 654.32 898 612.70 0.4367
2017-07-28 2017-06-30 13F IBM COMMON STOCK 459200101 821 307 59.73 126 40.00 0.0806
2017-04-28 2017-03-31 13F IBM COMMON STOCK 459200101 514 272 112.40 90 125.00 0.0739
2017-02-03 2016-12-31 13F IBM COMMON STOCK 459200101 242 142 142.00 40 150.00 0.0305
2016-11-04 2016-09-30 13F IBM COMMON STOCK 459200101 100 0 0.00 16 6.67 0.0136
2016-08-05 2016-06-30 13F IBM COMMON STOCK 459200101 100 0 0.00 15 0.00 0.0134
2016-05-11 2016-03-31 13F IBM COMMON STOCK 459200101 100 -2,499 -96.15 15 -95.80 0.0137
2016-01-27 2015-12-31 13F IBM COMMON STOCK 459200101 2,599 2,599 357 0.3200
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.