International Business Machines Corporation
MX ˙ BMV ˙ US4592001014
SecurityMX:IBM / International Business Machines Corporation
InstitutionCoastline Trust Co
Latest Disclosed Ownership1,891 shares
Latest Disclosed Value $ 458,359
Coastline Trust Co reports 27.85% decrease in ownership of IBM / International Business Machines Corporation

On April 3, 2026 - Coastline Trust Co filed a 13F-HR form disclosing ownership of 1,891 shares of International Business Machines Corporation (MX:IBM) valued at $458,359 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 5, 2026 disclosing 2,621 shares of International Business Machines Corporation. This represents a change in shares of -27.85% 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)
2026-04-03 2026-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 1,891 -730 -27.85 458 -40.98 0.0455
2026-01-05 2025-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 2,621 716 37.59 776 44.51 0.0730
2025-10-21 2025-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 1,905 0 0.00 538 -4.28 0.0577
2025-07-17 2025-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 1,905 0 0.00 562 18.60 0.0643
2025-04-28 2025-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 1,905 0 0.00 474 13.16 0.0589
2025-02-13 2024-12-31 13F INTL BUSINESS MCHN COM 459200101 1,905 -560 -22.72 419 -23.16 0.0490
2024-11-06 2024-09-30 13F INTL BUSINESS MCHN COM 459200101 2,465 0 0.00 545 27.70 0.0640
2024-07-15 2024-06-30 13F IBM COMMON STOCK 459200101 2,465 0 0.00 426 -9.36 0.0499
2024-04-26 2024-03-31 13F IBM COMMON STOCK 459200101 2,465 0 0.00 471 16.63 0.0569
2024-01-23 2023-12-31 13F IBM COMMON STOCK 459200101 2,465 -98 -3.82 403 12.26 0.0536
2023-10-18 2023-09-30 13F IBM COMMON STOCK 459200101 2,563 560 27.96 360 33.96 0.0530
2023-08-07 2023-06-30 13F IBM COMMON STOCK 459200101 2,003 -100 -4.76 268 -2.55 0.0375
2023-05-31 2023-03-31 13F/A-1 IBM COMMON STOCK 459200101 2,103 -100 -4.54 276 -11.29 0.0408
2023-04-12 2023-03-31 13F IBM COMMON STOCK 459200101 2,203 0 310 0.0462
2023-02-09 2022-12-31 13F IBM COMMON STOCK 459200101 2,203 -3,780 -63.18 310 -56.40 0.0462
2022-11-03 2022-09-30 13F IBM COMMON STOCK 459200101 5,983 -300 -4.77 711 -19.84 0.1137
2022-07-22 2022-06-30 13F IBM COMMON STOCK 459200101 6,283 -250 -3.83 887 4.48 0.1312
2022-05-04 2022-03-31 13F IBM COMMON STOCK 459200101 6,533 340 5.49 849 2.54 0.1031
2022-02-10 2021-12-31 13F IBM COMMON STOCK 459200101 6,193 0 0.00 828 -3.72 0.0945
2021-11-09 2021-09-30 13F IBM COMMON STOCK 459200101 6,193 -170 -2.67 860 -7.73 0.1070
2021-08-10 2021-06-30 13F IBM COMMON STOCK 459200101 6,363 -580 -8.35 932 0.76 0.1153
2021-05-10 2021-03-31 13F IBM COMMON STOCK 459200101 6,943 -1,775 -20.36 925 -15.68 0.1192
2021-02-12 2020-12-31 13F IBM COMMON STOCK 459200101 8,718 115 1.34 1,097 4.78 0.1462
2020-10-15 2020-09-30 13F IBM COMMON STOCK 459200101 8,603 860 11.11 1,047 11.98 0.1574
2020-08-07 2020-06-30 13F IBM COMMON STOCK 459200101 7,743 -75 -0.96 935 7.84 0.1476
2020-06-10 2020-03-31 13F IBM COMMON STOCK 459200101 7,818 1,090 16.20 867 -3.88 0.1565
2020-01-15 2019-12-31 13F IBM COMMON STOCK 459200101 6,728 -895 -11.74 902 -18.59 0.1250
2019-10-18 2019-09-30 13F IBM COMMON STOCK 459200101 7,623 500 7.02 1,108 12.83 0.1631
2019-07-18 2019-06-30 13F IBM COMMON STOCK 459200101 7,123 -45 -0.63 982 -2.96 0.1427
2019-04-25 2019-03-31 13F IBM COMMON STOCK 459200101 7,168 -620 -7.96 1,012 14.35 0.1511
2019-01-15 2018-12-31 13F IBM COMMON STOCK 459200101 7,788 -12,115 -60.87 885 -70.60 0.1526
2018-10-17 2018-09-30 13F IBM COMMON STOCK 459200101 19,903 550 2.84 3,010 11.32 0.4314
2018-07-27 2018-06-30 13F IBM COMMON STOCK 459200101 19,353 2,475 14.66 2,704 4.44 0.4077
2018-04-16 2018-03-31 13F IBM COMMON STOCK 459200101 16,878 1,025 6.47 2,589 6.46 0.3978
2018-01-17 2017-12-31 13F IBM COMMON STOCK 459200101 15,853 -500 -3.06 2,432 2.49 0.3659
2017-11-17 2017-09-30 13F IBM COMMON STOCK 459200101 16,353 1,340 8.93 2,373 2.73 0.4138
2017-08-10 2017-06-30 13F IBM COMMON STOCK 459200101 15,013 -814 -5.14 2,310 -16.18 0.4187
2017-04-19 2017-03-31 13F IBM COMMON STOCK 459200101 15,827 1,465 10.20 2,756 15.60 0.5145
2017-01-17 2016-12-31 13F IBM COMMON STOCK 459200101 14,362 25 0.17 2,384 4.70 0.4683
2016-10-20 2016-09-30 13F IBM COMMON STOCK 459200101 14,337 300 2.14 2,277 6.85 0.4455
2016-07-18 2016-06-30 13F IBM COMMON STOCK 459200101 14,037 35 0.25 2,131 0.47 0.4305
2016-04-15 2016-03-31 13F IBM COMMON STOCK 459200101 14,002 720 5.42 2,121 16.03 0.4525
2016-01-15 2015-12-31 13F IBM COMMON STOCK 459200101 13,282 4,192 46.12 1,828 38.69 0.4013
2015-10-30 2015-09-30 13F IBM COMMON STOCK 459200101 9,090 165 1.85 1,318 -9.23 0.3001
2015-07-22 2015-06-30 13F IBM COMMON STOCK 459200101 8,925 -210 -2.30 1,452 -1.02 0.3037
2015-04-17 2015-03-31 13F IBM COMMON STOCK 459200101 9,135 -24 -0.26 1,467 -0.20 0.3011
2015-01-21 2014-12-31 13F IBM COMMON STOCK 459200101 9,159 -2,795 -23.38 1,470 -35.21 0.3070
2014-10-20 2014-09-30 13F IBM COMMON STOCK 459200101 11,954 -125 -1.03 2,269 3.61 0.5947
2014-07-23 2014-06-30 13F IBM COMMON STOCK 459200101 12,079 -75 -0.62 2,190 -6.37 0.5683
2014-05-09 2014-03-31 13F IBM COMMON STOCK 459200101 12,154 0 0.00 2,339 2.59 0.6218
2014-02-14 2013-12-31 13F IBM COMMON STOCK 459200101 12,154 850 7.52 2,280 8.93 0.6192
2013-11-12 2013-09-30 13F IBM COMMON STOCK 459200101 11,304 -205 -1.78 2,093 -4.82 0.6153
2013-08-06 2013-06-30 13F IBM COMMON STOCK 459200101 11,509 11,509 2,199 0.6780
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.