International Business Machines Corporation
MX ˙ BMV ˙ US4592001014
SecurityMX:IBM / International Business Machines Corporation
InstitutionBaldwin Brothers Inc/ma
Latest Disclosed Ownership82,450 shares
Latest Disclosed Value $ 19,985,056
Baldwin Brothers Inc/ma reports 1.69% decrease in ownership of IBM / International Business Machines Corporation

On April 14, 2026 - Baldwin Brothers Inc/ma filed a 13F-HR form disclosing ownership of 82,450 shares of International Business Machines Corporation (MX:IBM) valued at $19,985,056 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 7, 2026 disclosing 83,870 shares of International Business Machines Corporation. This represents a change in shares of -1.69% 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)
2026-04-14 2026-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 82,450 -1,420 -1.69 19,985 -19.55 1.4519
2026-01-07 2025-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 83,870 -280 -0.33 24,843 4.63 1.5886
2025-10-14 2025-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 84,150 -106 -0.13 23,744 -4.40 1.5467
2025-07-24 2025-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 84,256 -245 -0.29 24,837 18.20 1.6868
2025-04-14 2025-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 84,501 -2,655 -3.05 21,012 9.67 1.4740
2025-01-22 2024-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 87,156 -2,429 -2.71 19,160 -3.26 1.3232
2024-10-16 2024-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 89,585 -104 -0.12 19,805 27.68 1.3498
2024-07-12 2024-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 89,689 -397 -0.44 15,512 -9.83 1.2084
2024-04-12 2024-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 90,086 -100 -0.11 17,203 16.63 1.2958
2024-01-08 2023-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 90,186 -595 -0.66 14,750 15.81 1.1588
2023-10-10 2023-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 90,781 -605 -0.66 12,737 4.15 1.0960
2023-07-14 2023-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 91,386 -50 -0.05 12,228 2.02 1.0030
2023-04-21 2023-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 91,436 -880 -0.95 11,986 -7.84 1.0447
2023-01-27 2022-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 92,316 85,172 1,192.22 13,006 1,431.92 1.1796
2022-10-14 2022-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 7,144 0 0.00 849 -15.86 0.1174
2022-07-18 2022-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 7,144 0 0.00 1,009 8.61 0.1308
2022-04-13 2022-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 7,144 -198 -2.70 929 -5.30 0.0773
2022-01-14 2021-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 7,342 35 0.48 981 -3.35 0.0981
2021-10-27 2021-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 7,307 48 0.66 1,015 -4.61 0.1126
2021-07-30 2021-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 7,259 0 0.00 1,064 10.03 0.1163
2021-04-08 2021-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 7,259 -213 -2.85 967 2.76 0.1149
2021-01-12 2020-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 7,472 -75 -0.99 941 2.51 0.1183
2020-10-16 2020-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 7,547 0 0.00 918 0.77 0.1255
2020-07-21 2020-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 7,547 -200 -2.58 911 6.05 0.1336
2020-04-15 2020-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 7,747 -344 -4.25 859 -20.83 0.1503
2020-01-29 2019-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 8,091 45 0.56 1,085 -7.26 0.1517
2019-10-10 2019-09-30 13F INTL BUSINESS MCHN COMMON 459200101 8,046 -31 -0.38 1,170 5.03 0.1761
2019-07-19 2019-06-30 13F INTL BUSINESS MCHN COMMON 459200101 8,077 -150 -1.82 1,114 -4.05 0.1642
2019-04-24 2019-03-31 13F INTL BUSINESS MCHN COMMON 459200101 8,227 366 4.66 1,161 29.87 0.1729
2019-02-01 2018-12-31 13F INTL BUSINESS MCHN COMMON 459200101 7,861 13 0.17 894 -24.68 0.1499
2018-10-26 2018-09-30 13F INTL BUSINESS MCHN COMMON 459200101 7,848 -125 -1.57 1,187 6.55 0.1662
2018-07-24 2018-06-30 13F INTL BUSINESS MCHN COMMON 459200101 7,973 190 2.44 1,114 -6.70 0.1731
2018-04-16 2018-03-31 13F INTL BUSINESS MCHN COMMON 459200101 7,783 -581 -6.95 1,194 -6.94 0.1931
2018-01-24 2017-12-31 13F INTL BUSINESS MCHN COMMON 459200101 8,364 -625 -6.95 1,283 -1.61 0.1998
2017-10-26 2017-09-30 13F INTL BUSINESS MCHN COMMON 459200101 8,989 -329 -3.53 1,304 -9.00 0.2097
2017-07-13 2017-06-30 13F INTL BUSINESS MCHN COMMON 459200101 9,318 -826 -8.14 1,433 -18.86 0.2304
2017-04-17 2017-03-31 13F INTL BUSINESS MCHN COMMON 459200101 10,144 -243 -2.34 1,766 2.44 0.2912
2017-01-10 2016-12-31 13F INTL BUSINESS MCHN COMMON 459200101 10,387 -508 -4.66 1,724 -0.40 0.3114
2016-11-08 2016-09-30 13F INTL BUSINESS MCHN COMMON 459200101 10,895 -616 -5.35 1,731 -0.92 0.3141
2016-08-11 2016-06-30 13F INTL BUSINESS MCHN COMMON 459200101 11,511 593 5.43 1,747 5.62 0.3595
2016-05-12 2016-03-31 13F INTL BUSINESS MCHN COMMON 459200101 10,918 591 5.72 1,654 16.40 0.2969
2016-02-11 2015-12-31 13F IBM COM 459200101 10,327 3,209 45.08 1,421 37.69 0.2314
2015-11-12 2015-09-30 13F IBM COM 459200101 7,118 800 12.66 1,032 0.39 0.1740
2015-08-10 2015-06-30 13F IBM COM 459200101 6,318 -75 -1.17 1,028 0.19 0.1524
2015-05-11 2015-03-31 13F IBM COM 459200101 6,393 -425 -6.23 1,026 -6.22 0.1512
2015-02-09 2014-12-31 13F IBM COM 459200101 6,818 -223 -3.17 1,094 -18.18 0.1582
2014-11-13 2014-09-30 13F IBM COM 459200101 7,041 2,753 64.20 1,337 62.06 0.1897
2014-05-09 2014-03-31 13F IBM COM 459200101 4,288 -652 -13.20 825 -11.00 0.1324
2014-02-12 2013-12-31 13F IBM COM 459200101 4,940 -3,807 -43.52 927 -42.78 0.1489
2013-11-12 2013-09-30 13F IBM COM 459200101 8,747 -3,836 -30.49 1,620 -32.64 0.2959
2013-08-14 2013-06-30 13F IBM COM 459200101 12,583 12,583 2,405 0.4757
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.