International Business Machines Corporation
BG ˙ BUL ˙ US4592001014
SecurityBG:IBM / International Business Machines Corporation
InstitutionClean Yield Group
Latest Disclosed Ownership19,057 shares
Latest Disclosed Value $ 4,619,226
Clean Yield Group reports 1.23% increase in ownership of IBM / International Business Machines Corporation

On April 14, 2026 - Clean Yield Group filed a 13F-HR form disclosing ownership of 19,057 shares of International Business Machines Corporation (BG:IBM) valued at $4,619,226 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 18,825 shares of International Business Machines Corporation. This represents a change in shares of 1.23% 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 Stock 459200101 19,057 232 1.23 4,619 -17.16 1.3003
2026-01-26 2025-12-31 13F INTERNATIONAL BUSINESS MACHS COM Stock 459200101 18,825 -147 -0.77 5,576 4.17 1.5479
2025-10-23 2025-09-30 13F INTERNATIONAL BUSINESS MACHS COM Stock 459200101 18,972 -557 -2.85 5,353 -7.00 1.5130
2025-07-17 2025-06-30 13F INTERNATIONAL BUSINESS MACHS COM Stock 459200101 19,529 -1,636 -7.73 5,757 9.39 1.7221
2025-04-14 2025-03-31 13F INTERNATIONAL BUSINESS MACHS COM Stock 459200101 21,165 -398 -1.85 5,263 11.01 1.7147
2025-01-13 2024-12-31 13F INTERNATIONAL BUSINESS MACHS COM Stock 459200101 21,563 627 2.99 4,740 2.42 1.5077
2024-10-07 2024-09-30 13F INTERNATIONAL BUSINESS MACHS COM Stock 459200101 20,936 -1,498 -6.68 4,629 19.31 1.4666
2024-07-10 2024-06-30 13F INTERNATIONAL BUSINESS MACHS COM Stock 459200101 22,434 698 3.21 3,880 -6.53 1.4493
2024-05-29 2024-03-31 13F INTERNATIONAL BUSINESS MACHS COM Stock 459200101 21,736 -392 -1.77 4,151 14.67 1.6147
2024-01-24 2023-12-31 13F INTERNATIONAL BUSINESS MACHS COM Stock 459200101 22,128 -290 -1.29 3,619 12.74 1.5243
2023-10-12 2023-09-30 13F INTERNATIONAL BUSINESS MACHS COM Stock 459200101 22,418 -692 -2.99 3,211 3.82 1.4233
2023-07-26 2023-06-30 13F INTERNATIONAL BUSINESS MACHS COM Stock 459200101 23,110 -83 -0.36 3,092 1.71 1.2737
2023-04-26 2023-03-31 13F INTERNATIONAL BUSINESS MACHS COM Stock 459200101 23,193 -18 -0.08 3,040 -7.03 1.2951
2023-01-31 2022-12-31 13F INTERNATIONAL BUSINESS MACHS COM Stock 459200101 23,211 -419 -1.77 3,270 16.49 1.4046
2022-10-31 2022-09-30 13F INTERNATIONAL BUSINESS MACHS COM Stock 459200101 23,630 -1,070 -4.33 2,807 -19.50 1.3027
2022-07-18 2022-06-30 13F INTERNATIONAL BUSINESS MACHS COM Stock 459200101 24,700 -1,391 -5.33 3,487 2.80 1.4413
2022-04-25 2022-03-31 13F INTERNATIONAL BUSINESS MACHS COM Stock 459200101 26,091 6,470 32.97 3,392 29.32 1.1980
2022-01-24 2021-12-31 13F INTERNATIONAL BUSINESS MACHS COM Stock 459200101 19,621 15,043 328.59 2,623 312.42 0.8383
2021-10-27 2021-09-30 13F INTERNATIONAL BUSINESS MACHS COM Stock 459200101 4,578 394 9.42 636 3.75 0.2086
2021-07-26 2021-06-30 13F INTERNATIONAL BUSINESS MACHS COM Stock 459200101 4,184 1,330 46.60 613 61.32 0.2083
2021-04-26 2021-03-31 13F INTERNATIONAL BUSINESS MACHS COM Stock 459200101 2,854 464 19.41 380 26.25 0.1429
2021-01-26 2020-12-31 13F INTERNATIONAL BUSINESS MACHS COM Stock 459200101 2,390 260 12.21 301 16.22 0.1082
2020-10-16 2020-09-30 13F INTERNATIONAL BUSINESS MACHS COM Stock 459200101 2,130 0 0.00 259 0.78 0.1050
2020-07-22 2020-06-30 13F INTERNATIONAL BUSINESS MACHS COM Stock 459200101 2,130 -526 -19.80 257 -12.88 0.1111
2020-04-20 2020-03-31 13F INTERNATIONAL BUSINESS MACHS COM Stock 459200101 2,656 -4,331 -61.99 295 -68.52 0.1401
2020-01-17 2019-12-31 13F INTERNATIONAL BUSINESS MACHS COM Stock 459200101 6,987 -585 -7.73 937 -14.90 0.2937
2019-10-23 2019-09-30 13F INTERNATIONAL BUSINESS MACHS COM Stock 459200101 7,572 -1,062 -12.30 1,101 -7.56 0.3631
2019-07-22 2019-06-30 13F INTERNATIONAL BUSINESS MACHS COM Stock 459200101 8,634 -1,443 -14.32 1,191 -16.24 0.4305
2019-04-24 2019-03-31 13F INTERNATIONAL BUSINESS MACHS COM Stock 459200101 10,077 -1,612 -13.79 1,422 7.00 0.5757
2019-01-23 2018-12-31 13F INTERNATIONAL BUSINESS MACHS COM Stock 459200101 11,689 82 0.71 1,329 -24.27 0.5785
2018-10-22 2018-09-30 13F INTERNATIONAL BUSINESS MACHS COM Stock 459200101 11,607 1,476 14.57 1,755 24.03 0.6985
2018-07-24 2018-06-30 13F INTERNATIONAL BUSINESS MACHS COM Stock 459200101 10,131 544 5.67 1,415 -3.81 0.5861
2018-04-23 2018-03-31 13F INTERNATIONAL BUSINESS MACHS COM Stock 459200101 9,587 56 0.59 1,471 0.62 0.6212
2018-01-16 2017-12-31 13F INTERNATIONAL BUSINESS MACHS COM Stock 459200101 9,531 15 0.16 1,462 5.87 0.5788
2017-10-11 2017-09-30 13F INTERNATIONAL BUSINESS MACHS COM Stock 459200101 9,516 -166 -1.71 1,381 -7.50 0.5633
2017-07-17 2017-06-30 13F INTERNATIONAL BUSINESS MACHS COM Stock 459200101 9,682 -30 -0.31 1,493 -11.71 0.6246
2017-05-03 2017-03-31 13F INTERNATIONAL BUSINESS MACHS COM Stock 459200101 9,712 -736 -7.04 1,691 -2.48 0.7124
2017-01-24 2016-12-31 13F INTERNATIONAL BUSINESS MACHS COM Stock 459200101 10,448 0 0.00 1,734 4.46 0.7821
2016-10-28 2016-09-30 13F INTERNATIONAL BUSINESS MACHS COM Stock 459200101 10,448 0 0.00 1,660 4.67 0.7216
2016-07-27 2016-06-30 13F INTERNATIONAL BUSINESS MACHS COM Stock 459200101 10,448 0 0.00 1,586 0.38 0.6808
2016-04-15 2016-03-31 13F INTERNATIONAL BUSINESS MACHS COM Stock 459200101 10,448 601 6.10 1,580 31.12 0.7024
2016-01-27 2015-12-31 13F INTL BUSINESS MACHINES Stock 459200101 9,847 2,636 36.56 1,205 18.60 0.5945
2015-10-29 2015-09-30 13F INTERNATIONAL BUSINESS MACHS COM Stock 459200101 7,211 -200 -2.70 1,016 -15.68 0.4791
2015-07-31 2015-06-30 13F INTL BUSINESS MACHINES Stock 459200101 7,411 -155 -2.05 1,205 -0.74 0.5536
2015-04-24 2015-03-31 13F INTL BUSINESS MACHINES Stock 459200101 7,566 7,566 0.00 1,214 0.5204
2015-01-29 2014-12-31 13F International Business Machine COM 459200101 0 -8,071 -100.00 0 -100.00
2014-10-27 2014-09-30 13F International Business Machine COM 459200101 8,071 -445 -5.23 1,532 -0.78 0.7358
2014-07-21 2014-06-30 13F International Business Machine COM 459200101 8,516 -30 -0.35 1,544 -6.14 0.7628
2014-04-24 2014-03-31 13F International Business Machine COM 459200101 8,546 -380 -4.26 1,645 -1.73 0.8507
2014-01-31 2013-12-31 13F International Business Machine COM 459200101 8,926 -5,011 -35.95 1,674 -35.14 0.8960
2013-10-24 2013-09-30 13F International Business Machine COM 459200101 13,937 -145 -1.03 2,581 -4.09 1.3979
2013-10-24 2013-06-30 13F International Business Machine COM 459200101 14,082 14,082 2,691 1.5383
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.