International Business Machines Corporation
MX ˙ BMV ˙ US4592001014
SecurityMX:IBM / International Business Machines Corporation
InstitutionBeck Mack & Oliver Llc
Latest Disclosed Ownership1,701 shares
Latest Disclosed Value $ 412,226
Beck Mack & Oliver Llc reports 0.06% increase in ownership of IBM / International Business Machines Corporation

On May 12, 2026 - Beck Mack & Oliver Llc filed a 13F-HR form disclosing ownership of 1,701 shares of International Business Machines Corporation (MX:IBM) valued at $412,226 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 1,700 shares of International Business Machines Corporation. This represents a change in shares of 0.06% 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)
2026-05-12 2026-03-31 13F INTL. BUSINESS MACHINES COM 459200101 1,701 1 0.06 412 -18.09 0.0085
2026-02-12 2025-12-31 13F INTL. BUSINESS MACHINES COM 459200101 1,700 80 4.94 504 10.07 0.0091
2025-11-14 2025-09-30 13F INTL. BUSINESS MACHINES COM 459200101 1,620 160 10.96 457 6.28 0.0083
2025-08-14 2025-06-30 13F INTL. BUSINESS MACHINES COM 459200101 1,460 1 0.07 430 18.78 0.0082
2025-05-15 2025-03-31 13F INTL. BUSINESS MACHINES COM 459200101 1,459 0 0.00 363 13.13 0.0072
2025-02-13 2024-12-31 13F INTL. BUSINESS MACHINES COM 459200101 1,459 1 0.07 321 -0.62 0.0059
2024-11-13 2024-09-30 13F INTL. BUSINESS MACHINES COM 459200101 1,458 -1,264 -46.44 322 -31.49 0.0063
2024-08-14 2024-06-30 13F INTL. BUSINESS MACHINES COM 459200101 2,722 165 6.45 471 -3.69 0.0098
2024-05-14 2024-03-31 13F INTL. BUSINESS MACHINES COM 459200101 2,557 57 2.28 488 19.61 0.0099
2024-02-14 2023-12-31 13F INTL. BUSINESS MACHINES COM 459200101 2,500 -2 -0.08 409 16.24 0.0095
2023-11-14 2023-09-30 13F INTL. BUSINESS MACHINES COM 459200101 2,502 2 0.08 351 5.09 0.0092
2023-08-08 2023-06-30 13F INTL. BUSINESS MACHINES COM 459200101 2,500 0 0.00 335 2.14 0.0087
2023-05-15 2023-03-31 13F INTL. BUSINESS MACHINES COM 459200101 2,500 0 0.00 328 -7.10 0.0095
2023-02-14 2022-12-31 13F/A-1 INTL. BUSINESS MACHINES COM 459200101 2,500 0 0.00 352 18.52 0.0103
2023-02-14 2022-12-31 13F INTL. BUSINESS MACHINES COM 459200101 2,500 0 352 0.0099
2022-11-10 2022-09-30 13F INTL. BUSINESS MACHINES COM 459200101 2,500 0 0.00 297 -15.86 0.0096
2022-08-12 2022-06-30 13F INTL. BUSINESS MACHINES COM 459200101 2,500 250 11.11 353 20.48 0.0106
2022-05-16 2022-03-31 13F INTL. BUSINESS MACHINES COM 459200101 2,250 -50 -2.17 293 -4.56 0.0073
2022-01-28 2021-12-31 13F INTL. BUSINESS MACHINES COM 459200101 2,300 0 0.00 307 -4.06 0.0073
2021-11-04 2021-09-30 13F INTL. BUSINESS MACHINES COM 459200101 2,300 0 0.00 320 -5.04 0.0083
2021-07-28 2021-06-30 13F INTL. BUSINESS MACHINES COM 459200101 2,300 -2,400 -51.06 337 -46.17 0.0090
2021-05-11 2021-03-31 13F INTL. BUSINESS MACHINES COM 459200101 4,700 -1,500 -24.19 626 -19.74 0.0193
2021-02-10 2020-12-31 13F INTL. BUSINESS MACHINES COM 459200101 6,200 -1,000 -13.89 780 -10.96 0.0259
2020-11-02 2020-09-30 13F INTL. BUSINESS MACHINES COM 459200101 7,200 0 0.00 876 0.69 0.0322
2020-08-10 2020-06-30 13F INTL. BUSINESS MACHINES COM 459200101 7,200 0 0.00 870 8.89 0.0323
2020-05-05 2020-03-31 13F INTL. BUSINESS MACHINES COM 459200101 7,200 -2,775 -27.82 799 -40.24 0.0355
2020-02-07 2019-12-31 13F INTL. BUSINESS MACHINES COM 459200101 9,975 -638 -6.01 1,337 -13.35 0.0442
2019-11-06 2019-09-30 13F INTL. BUSINESS MACHINES COM 459200101 10,613 0 0.00 1,543 5.40 0.0543
2019-08-13 2019-06-30 13F INTL. BUSINESS MACHINES COM 459200101 10,613 -400 -3.63 1,464 -5.79 0.0514
2019-05-02 2019-03-31 13F INTL. BUSINESS MACHINES COM 459200101 11,013 -281 -2.49 1,554 21.03 0.0556
2019-02-04 2018-12-31 13F INTL. BUSINESS MACHINES COM 459200101 11,294 -8,996 -44.34 1,284 -58.15 0.0515
2018-10-29 2018-09-30 13F INTL. BUSINESS MACHINES COM 459200101 20,290 -470 -2.26 3,068 5.79 0.0974
2018-07-25 2018-06-30 13F INTL. BUSINESS MACHINES COM 459200101 20,760 521 2.57 2,900 -6.60 0.0974
2018-04-25 2018-03-31 13F INTL. BUSINESS MACHINES COM 459200101 20,239 -1,765 -8.02 3,105 -8.03 0.1045
2018-02-02 2017-12-31 13F INTL. BUSINESS MACHINES COM 459200101 22,004 -21,045 -48.89 3,376 -45.95 0.1107
2017-10-27 2017-09-30 13F INTL. BUSINESS MACHINES COM 459200101 43,049 -3,606 -7.73 6,246 -12.97 0.2055
2017-07-26 2017-06-30 13F INTL. BUSINESS MACHINES COM 459200101 46,655 -808 -1.70 7,177 -13.16 0.2416
2017-04-27 2017-03-31 13F INTL. BUSINESS MACHINES COM 459200101 47,463 -9,308 -16.40 8,265 -12.29 0.2890
2017-01-31 2016-12-31 13F INTL. BUSINESS MACHINES COM 459200101 56,771 -2,617 -4.41 9,423 -0.12 0.3389
2016-10-28 2016-09-30 13F INTL. BUSINESS MACHINES COM 459200101 59,388 -468 -0.78 9,434 3.84 0.3402
2016-07-29 2016-06-30 13F INTL. BUSINESS MACHINES COM 459200101 59,856 -384 -0.64 9,085 -0.42 0.3207
2016-04-27 2016-03-31 13F INTL. BUSINESS MACHINES COM 459200101 60,240 -5,260 -8.03 9,123 1.21 0.3185
2016-02-01 2015-12-31 13F INTL. BUSINESS MACHINES COM 459200101 65,500 -169,464 -72.12 9,014 -73.54 0.3072
2015-11-02 2015-09-30 13F INTL. BUSINESS MACHINES COM 459200101 234,964 -54,309 -18.77 34,063 -27.61 1.0307
2015-07-31 2015-06-30 13F INTL. BUSINESS MACHINES COM 459200101 289,273 -59,300 -17.01 47,053 -15.90 1.2262
2015-04-28 2015-03-31 13F INTL. BUSINESS MACHINES COM 459200101 348,573 348,573 0.00 55,946 1.4004
2015-01-26 2014-12-31 13F INTL. BUSINESS MACHINES COM 459200101 0 -522,082 -100.00 0 -100.00
2014-10-29 2014-09-30 13F INTL. BUSINESS MACHINES COM 459200101 522,082 -13,105 -2.45 99,107 2.16 2.3291
2014-07-31 2014-06-30 13F INTL. BUSINESS MACHINES COM 459200101 535,187 -30,544 -5.40 97,013 -10.91 2.1780
2014-04-30 2014-03-31 13F INTL. BUSINESS MACHINES COM 459200101 565,731 -32,044 -5.36 108,898 -2.88 2.5446
2014-01-29 2013-12-31 13F INTL. BUSINESS MACHINES COM 459200101 597,775 100,780 20.28 112,125 21.83 2.7407
2013-10-28 2013-09-30 13F/A-1 INTL. BUSINESS MACHINES COM 459200101 496,995 21,104 4.43 92,034 1.19 2.4224
2013-10-28 2013-09-30 13F INTL. BUSINESS MACHINES COM 459200101 475,891 90,948
2013-07-24 2013-06-30 13F INTL. BUSINESS MACHINES COM 459200101 475,891 475,891 90,948 2.4819
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.