International Business Machines Corporation
MX ˙ BMV ˙ US4592001014
SecurityMX:IBM / International Business Machines Corporation
InstitutionWashington Trust Bank
Latest Disclosed Ownership2,073 shares
Latest Disclosed Value $ 502,474
Washington Trust Bank reports 21.09% increase in ownership of IBM / International Business Machines Corporation

On May 7, 2026 - Washington Trust Bank filed a 13F-HR form disclosing ownership of 2,073 shares of International Business Machines Corporation (MX:IBM) valued at $502,474 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 4, 2026 disclosing 1,712 shares of International Business Machines Corporation. This represents a change in shares of 21.09% 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)
2026-05-07 2026-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 2,073 361 21.09 502 -0.99 0.0371
2026-02-04 2025-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 1,712 37 2.21 507 7.42 0.0355
2025-10-24 2025-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 1,675 -105 -5.90 473 -9.92 0.0346
2025-08-06 2025-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 1,780 86 5.08 525 24.47 0.0442
2025-04-30 2025-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 1,694 -116 -6.41 421 6.05 0.0422
2025-02-11 2024-12-31 13F INTL BUSINESS MCHN COM 459200101 1,810 586 47.88 398 47.04 0.0382
2024-10-31 2024-09-30 13F INTL BUSINESS MCHN COM 459200101 1,224 -774 -38.74 271 -21.74 0.0259
2024-07-29 2024-06-30 13F INTL BUSINESS MCHN COM 459200101 1,998 -1,634 -44.99 346 -50.22 0.0342
2024-05-14 2024-03-31 13F INTL BUSINESS MCHN COM 459200101 3,632 -425 -10.48 694 4.52 0.0661
2024-02-14 2023-12-31 13F INTL BUSINESS MCHN COM 459200101 4,057 -35 -0.86 664 15.51 0.0588
2023-11-06 2023-09-30 13F INTL BUSINESS MCHN COM 459200101 4,092 -55 -1.33 574 3.61 0.0600
2023-08-10 2023-06-30 13F INTL BUSINESS MCHN COM 459200101 4,147 848 25.70 555 28.24 0.0566
2023-05-15 2023-03-31 13F INTL BUSINESS MCHN COM 459200101 3,299 -113 -3.31 432 0.0463
2023-02-06 2022-12-31 13F INTL BUSINESS MCHN COM 459200101 3,412 -337 -8.99 0 -100.00 0.0545
2022-11-16 2022-09-30 13F IBM COM 459200101 3,749 -388 -9.38 445 -23.80 0.0566
2022-08-04 2022-06-30 13F IBM COM 459200101 4,137 -272 -6.17 584 1.92 0.0750
2022-05-13 2022-03-31 13F INTL BUSINESS MCHN COM 459200101 4,409 -1,526 -25.71 573 -27.83 0.0663
2022-02-09 2021-12-31 13F INTL BUSINESS MCHN COM 459200101 5,935 106 1.82 794 -1.98 0.0768
2021-10-27 2021-09-30 13F INTL BUSINESS MCHN COM 459200101 5,829 102 1.78 810 -3.57 0.0946
2021-07-28 2021-06-30 13F INTL BUSINESS MCHN COM 459200101 5,727 -420 -6.83 840 2.56 0.0995
2021-04-22 2021-03-31 13F INTL BUSINESS MCHN COM 459200101 6,147 -554 -8.27 819 -2.96 0.1009
2021-02-08 2020-12-31 13F INTL BUSINESS MCHN COM 459200101 6,701 300 4.69 844 8.34 0.1101
2020-11-12 2020-09-30 13F INTL BUSINESS MCHN COM 459200101 6,401 500 8.47 779 9.41 0.1152
2020-07-29 2020-06-30 13F INTL BUSINESS MCHN COM 459200101 5,901 550 10.28 712 19.87 0.1133
2020-05-01 2020-03-31 13F INTL BUSINESS MCHN COM 459200101 5,351 -300 -5.31 594 -21.64 0.1140
2020-01-29 2019-12-31 13F INTL BUSINESS MCHN COM 459200101 5,651 91 1.64 758 -6.19 0.1078
2019-10-29 2019-09-30 13F INTL BUSINESS MCHN COM 459200101 5,560 -2,196 -28.31 808 -24.42 0.1322
2019-07-26 2019-06-30 13F INTL BUSINESS MCHN COM 459200101 7,756 -1 -0.01 1,069 -2.29 0.1739
2019-04-09 2019-03-31 13F INTL BUSINESS MCHN COM 459200101 7,757 -2,151 -21.71 1,094 -2.93 0.1744
2019-02-13 2018-12-31 13F INTL BUSINESS MCHN COM 459200101 9,908 -880 -8.16 1,127 -30.90 0.1480
2018-11-14 2018-09-30 13F INTL BUSINESS MCHN COM 459200101 10,788 -20 -0.19 1,631 8.01 0.2423
2018-07-03 2018-06-30 13F INTL BUSINESS MCHN COM 459200101 10,808 -452 -4.01 1,510 -12.62 0.2103
2018-04-03 2018-03-31 13F INTL BUSINESS MCHN COM 459200101 11,260 1,029 10.06 1,728 10.06 0.2479
2018-01-03 2017-12-31 13F INTL BUSINESS MCHN COM 459200101 10,231 713 7.49 1,570 13.69 0.2296
2017-10-05 2017-09-30 13F INTL BUSINESS MCHN COM 459200101 9,518 1,829 23.79 1,381 16.74 0.2191
2017-07-20 2017-06-30 13F INTL BUSINESS MCHN COM 459200101 7,689 -561 -6.80 1,183 -17.68 0.2538
2017-04-18 2017-03-31 13F IBM COM 459200101 8,250 -1,072 -11.50 1,437 -7.11 0.3101
2017-01-17 2016-12-31 13F IBM COM 459200101 9,322 -147 -1.55 1,547 2.86 0.3487
2016-10-04 2016-09-30 13F IBM COM 459200101 9,469 83 0.88 1,504 5.54 0.3618
2016-07-07 2016-06-30 13F IBM COM 459200101 9,386 -389 -3.98 1,425 -3.72 0.3689
2016-04-25 2016-03-31 13F IBM COM 459200101 9,775 110 1.14 1,480 11.28 0.3824
2016-01-21 2015-12-31 13F IBM COM 459200101 9,665 -385 -3.83 1,330 -8.72 0.2896
2015-10-07 2015-09-30 13F IBM Common Stock 459200101 10,050 -237 -2.30 1,457 -12.91 0.3872
2015-07-10 2015-06-30 13F IBM Common Stock 459200101 10,287 -135 -1.30 1,673 0.00 0.4082
2015-04-17 2015-03-31 13F IBM Common Stock 459200101 10,422 979 10.37 1,673 10.43 0.4032
2015-01-15 2014-12-31 13F IBM Common Stock 459200101 9,443 -7,179 -43.19 1,515 -51.98 0.3954
2014-11-21 2014-09-30 13F IBM Common Stock 459200101 16,622 -14,764 -47.04 3,155 -44.54 0.9899
2014-08-08 2014-06-30 13F IBM Common Stock 459200101 31,386 49 0.16 5,689 -5.69 1.1565
2014-05-15 2014-03-31 13F IBM Common Stock 459200101 31,337 31,337 6,032 1,237.47 1.2738
2014-02-06 2013-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 0 -24,405 -100.00 451 -90.02 0.8186
2013-11-15 2013-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 24,405 5,746 30.79 4,519 26.72 1.1773
2013-08-13 2013-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 18,659 18,659 3,566 1.0297
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.