International Business Machines Corporation
MX ˙ BMV ˙ US4592001014
SecurityMX:IBM / International Business Machines Corporation
InstitutionTectonic Advisors Llc
Latest Disclosed Ownership58,314 shares
Latest Disclosed Value $ 14,134,759
Tectonic Advisors Llc reports 8.02% increase in ownership of IBM / International Business Machines Corporation

On April 17, 2026 - Tectonic Advisors Llc filed a 13F-HR form disclosing ownership of 58,314 shares of International Business Machines Corporation (MX:IBM) valued at $14,134,759 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 53,983 shares of International Business Machines Corporation. This represents a change in shares of 8.02% 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)
2026-04-17 2026-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 58,314 4,331 8.02 14,135 -11.61 0.5552
2026-01-23 2025-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 53,983 694 1.30 15,990 6.34 0.8432
2025-10-21 2025-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 53,289 3,704 7.47 15,036 2.87 0.8212
2025-07-23 2025-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 49,585 235 0.48 14,617 19.11 0.8497
2025-05-02 2025-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 49,350 -177 -0.36 12,272 12.71 0.7672
2025-01-27 2024-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 49,527 2,702 5.77 10,888 5.17 0.7088
2024-10-23 2024-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 46,825 4,716 11.20 10,352 42.16 0.6761
2024-08-02 2024-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 42,109 4,577 12.19 7,283 1.60 0.5247
2024-05-07 2024-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 37,532 395 1.06 7,167 18.01 0.5466
2024-01-17 2023-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 37,137 1,566 4.40 6,074 21.70 0.5084
2023-10-24 2023-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 35,571 3,949 12.49 4,991 17.94 0.4678
2023-07-14 2023-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 31,622 3,922 14.16 4,231 16.52 0.5210
2023-04-26 2023-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 27,700 21,514 347.79 3,631 316.88 0.4966
2023-02-14 2022-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 6,186 483 8.47 872 28.47 0.1351
2022-11-08 2022-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 5,703 669 13.29 678 -4.64 0.1251
2022-08-11 2022-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 5,034 382 8.21 711 17.52 0.1299
2022-05-09 2022-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 4,652 815 21.24 605 17.93 0.1041
2022-02-02 2021-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 3,837 857 28.76 513 23.91 0.0919
2021-11-02 2021-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 2,980 477 19.06 414 12.81 0.0813
2021-07-22 2021-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 2,503 635 33.99 367 47.39 0.0757
2021-05-18 2021-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 1,868 275 17.26 249 23.88 0.0619
2021-05-17 2020-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 1,593 1,593 201 0.0549
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.