International Business Machines Corporation
MX ˙ BMV ˙ US4592001014
SecurityMX:IBM / International Business Machines Corporation
InstitutionWASHINGTON TRUST Co
Latest Disclosed Ownership16,744 shares
Latest Disclosed Value $ 4,058,556
WASHINGTON TRUST Co reports 2.49% increase in ownership of IBM / International Business Machines Corporation

On April 6, 2026 - WASHINGTON TRUST Co filed a 13F-HR form disclosing ownership of 16,744 shares of International Business Machines Corporation (MX:IBM) valued at $4,058,556 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 16,338 shares of International Business Machines Corporation. This represents a change in shares of 2.49% 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)
2026-04-06 2026-03-31 13F INTL BUSINESS MACHINES Equities 459200101 16,744 406 2.49 4,059 -16.14 0.1320
2026-02-10 2025-12-31 13F INTL BUSINESS MACHINES Equities 459200101 16,338 1,800 12.38 4,839 18.00 0.1582
2025-11-12 2025-09-30 13F INTL BUSINESS MACHINES Equities 459200101 14,538 933 6.86 4,102 2.27 0.1346
2025-08-08 2025-06-30 13F INTL BUSINESS MACHINES Equities 459200101 13,605 1 0.01 4,010 18.57 0.1418
2025-04-25 2025-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 13,604 178 1.33 3,383 14.61 0.1297
2025-01-30 2024-12-31 13F INTL BUSINESS MCHN COM 459200101 13,426 66 0.49 2,952 -0.07 0.1059
2024-10-25 2024-09-30 13F INTL BUSINESS MCHN COM 459200101 13,360 266 2.03 2,954 30.43 0.1035
2024-07-15 2024-06-30 13F INTL BUSINESS MCHN COM 459200101 13,094 -4 -0.03 2,265 -9.48 0.0828
2024-04-23 2024-03-31 13F INTL BUSINESS MCHN COM 459200101 13,098 397 3.13 2,501 20.53 0.0919
2024-01-18 2023-12-31 13F INTL BUSINESS MCHN COM 459200101 12,701 43 0.34 2,076 16.90 0.0821
2023-10-18 2023-09-30 13F INTL BUSINESS MCHN COM 459200101 12,658 -1,071 -7.80 1,776 -3.38 0.0781
2023-07-27 2023-06-30 13F INTL BUSINESS MCHN COM 459200101 13,729 -12 -0.09 1,837 2.00 0.0775
2023-05-10 2023-03-31 13F/A-1 INTL BUSINESS MCHN COM 459200101 13,741 -160 -1.15 1,801 -8.02 0.0811
2023-05-04 2023-03-31 13F INTL BUSINESS MCHN COM 459200101 13 -13,888 2 0.0759
2023-07-27 2022-12-31 13F/A-1 INTL BUSINESS MCHN COM 459200101 13,901 2,000 16.81 1,959 38.47 0.0912
2023-02-08 2022-12-31 13F IBM COM 459200101 13,901 2,000 2 0.0001
2022-10-14 2022-09-30 13F IBM COM 459200101 11,901 -298 -2.44 1,414 -17.89 0.0712
2022-07-25 2022-06-30 13F IBM COM 459200101 12,199 -627 -4.89 1,722 3.24 0.0809
2022-05-05 2022-03-31 13F INTL BUSINESS MCHN COM 459200101 12,826 143 1.13 1,668 -1.59 0.0660
2022-02-09 2021-12-31 13F/A-1 INTL BUSINESS MCHN COM 459200101 12,683 -14,419 -53.20 1,695 -54.99 0.0636
2022-02-09 2021-12-31 13F INTL BUSINESS MCHN COM 459200101 12,683 -14,419 1,695 0.0593
2021-11-09 2021-09-30 13F INTL BUSINESS MCHN COM 459200101 27,102 0 0.00 3,766 -5.21 0.1062
2021-08-05 2021-06-30 13F INTL BUSINESS MCHN COM 459200101 27,102 -1,659 -5.77 3,973 3.65 0.1121
2021-04-28 2021-03-31 13F INTL BUSINESS MCHN COM 459200101 28,761 -1,350 -4.48 3,833 1.11 0.1177
2021-02-09 2020-12-31 13F INTL BUSINESS MCHN COM 459200101 30,111 -958 -3.08 3,791 0.26 0.1224
2020-11-05 2020-09-30 13F INTL BUSINESS MCHN COM 459200101 31,069 -435 -1.38 3,781 -0.24 0.1397
2020-08-04 2020-06-30 13F INTL BUSINESS MCHN COM 459200101 31,504 -3,155 -9.10 3,790 -1.40 0.1574
2020-05-07 2020-03-31 13F INTL BUSINESS MCHN COM 459200101 34,659 2,712 8.49 3,844 -10.25 0.1833
2020-02-12 2019-12-31 13F INTL BUSINESS MCHN COM 459200101 31,947 16,166 102.44 4,283 102.89 0.1687
2019-11-06 2019-09-30 13F INTL BUSINESS MCHN COM 459200101 15,781 -1,715 -9.80 2,111 -12.48 0.1130
2019-08-07 2019-06-30 13F INTL BUSINESS MCHN COM 459200101 17,496 1,091 6.65 2,412 6.54 0.1321
2019-05-13 2019-03-31 13F INTL BUSINESS MCHN COM 459200101 16,405 -504 -2.98 2,264 17.73 0.1267
2019-02-11 2018-12-31 13F INTL BUSINESS MCHN COM 459200101 16,909 -36,603 -68.40 1,923 -76.24 0.1223
2018-11-13 2018-09-30 13F INTL BUSINESS MCHN COM 459200101 53,512 -5,115 -8.72 8,092 -1.20 0.4332
2018-08-10 2018-06-30 13F INTL BUSINESS MCHN COM 459200101 58,627 1,246 2.17 8,190 -6.96 0.4388
2018-05-10 2018-03-31 13F IBM COMMON STOCK 459200101 57,381 16,492 40.33 8,803 40.33 0.5159
2018-02-05 2017-12-31 13F IBM COMMON STOCK 459200101 40,889 -3,318 -7.51 6,273 -2.20 0.3530
2017-10-31 2017-09-30 13F IBM COMMON STOCK 459200101 44,207 -3,282 -6.91 6,414 -12.20 0.3815
2017-08-03 2017-06-30 13F IBM COMMON STOCK 459200101 47,489 -1,270 -2.60 7,305 -13.97 0.4451
2017-05-01 2017-03-31 13F IBM COMMON STOCK 459200101 48,759 -491 -1.00 8,491 3.87 0.5382
2017-02-08 2016-12-31 13F IBM COMMON STOCK 459200101 49,250 -4,318 -8.06 8,175 -3.94 0.5291
2016-11-03 2016-09-30 13F IBM COMMON STOCK 459200101 53,568 -5,177 -8.81 8,510 -4.56 0.5599
2016-08-11 2016-06-30 13F IBM COMMON STOCK 459200101 58,745 -1,312 -2.18 8,917 -1.97 0.6026
2016-05-05 2016-03-31 13F IBM COMMON STOCK 459200101 60,057 523 0.88 9,096 11.02 0.6069
2016-02-12 2015-12-31 13F IBM COMMON STOCK 459200101 59,534 -2,813 -4.51 8,193 -9.36 0.5598
2015-11-12 2015-09-30 13F IBM COMMON STOCK 459200101 62,347 10,272 19.73 9,039 6.72 0.6526
2015-08-07 2015-06-30 13F IBM COMMON STOCK 459200101 52,075 -6,536 -11.15 8,470 -9.96 0.5582
2015-05-05 2015-03-31 13F IBM COMMON STOCK 459200101 58,611 -2,759 -4.50 9,407 -4.45 0.6244
2015-02-11 2014-12-31 13F IBM COMMON STOCK 459200101 61,370 -24,674 -28.68 9,845 -39.72 0.6766
2014-11-12 2014-09-30 13F IBM COMMON STOCK 459200101 86,044 1,304 1.54 16,333 6.33 1.1971
2014-08-12 2014-06-30 13F IBM COMMON STOCK 459200101 84,740 2,291 2.78 15,360 -3.22 1.1257
2014-05-09 2014-03-31 13F IBM COMMON STOCK 459200101 82,449 -67,007 -44.83 15,871 -43.38 1.1938
2014-02-13 2013-12-31 13F IBM COMMON STOCK 459200101 149,456 -1,388 -0.92 28,033 0.36 2.1353
2013-11-08 2013-09-30 13F IBM COMMON STOCK 459200101 150,844 1,329 0.89 27,933 -2.24 2.2383
2013-08-14 2013-06-30 13F IBM COMMON STOCK 459200101 149,515 149,515 28,574 2.4116
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.