International Business Machines Corporation
MX ˙ BMV ˙ US4592001014
SecurityMX:IBM / International Business Machines Corporation
InstitutionAssenagon Asset Management S.A.
Latest Disclosed Ownership212,421 shares
Latest Disclosed Value $ 51,488,726
Assenagon Asset Management S.A. reports 109.83% increase in ownership of IBM / International Business Machines Corporation

On April 20, 2026 - Assenagon Asset Management S.A. filed a 13F-HR form disclosing ownership of 212,421 shares of International Business Machines Corporation (MX:IBM) valued at $51,488,726 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 9, 2026 disclosing 101,234 shares of International Business Machines Corporation. This represents a change in shares of 109.83% 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)
2026-04-20 2026-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 212,421 111,187 109.83 51,489 71.71 0.0782
2026-01-09 2025-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 101,234 -561,777 -84.73 29,987 -83.97 0.0413
2025-10-07 2025-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 663,011 391,466 144.16 187,075 133.71 0.2558
2025-07-11 2025-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 271,545 225,006 483.48 80,046 591.72 0.1188
2025-04-15 2025-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 46,539 -424,886 -90.13 11,572 -88.83 0.0193
2025-01-14 2024-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 471,425 129,416 37.84 103,633 37.06 0.1671
2024-10-23 2024-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 342,009 -106,865 -23.81 75,611 -2.60 0.1392
2024-07-18 2024-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 448,874 320,380 249.33 77,633 216.39 0.1728
2024-04-24 2024-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 128,494 -50,720 -28.30 24,537 -16.28 0.0581
2024-01-17 2023-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 179,214 -1,557 -0.86 29,310 15.57 0.0778
2023-11-06 2023-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 180,771 -113,229 -38.51 25,362 -35.53 0.0785
2023-07-25 2023-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 294,000 159,942 119.31 39,340 123.87 0.1361
2023-04-18 2023-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 134,058 -218,345 -61.96 17,574 35,763.27 0.0624
2023-01-12 2022-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 352,403 30,662 9.53 50 -99.87 0.1791
2022-10-27 2022-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 321,741 295,810 1,140.76 38,226 944.14 0.1467
2022-07-27 2022-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 25,931 -1,311 -4.81 3,661 3.36 0.0136
2022-04-25 2022-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 27,242 3,770 16.06 3,542 12.91 0.0098
2022-02-01 2021-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 23,472 1,337 6.04 3,137 2.02 0.0091
2021-10-19 2021-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 22,135 9,527 75.56 3,075 66.40 0.0098
2021-07-15 2021-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 12,608 -373 -2.87 1,848 6.82 0.0063
2021-04-26 2021-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 12,981 -504 -3.74 1,730 1.94 0.0070
2021-02-01 2020-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 13,485 2,726 25.34 1,697 29.64 0.0074
2020-10-07 2020-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 10,759 -1,080 -9.12 1,309 -8.46 0.0073
2020-07-21 2020-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 11,839 9,595 427.58 1,430 474.30 0.0092
2020-04-17 2020-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 2,244 2,244 249 0.0020
2020-01-17 2019-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 0 -103,588 -100.00 0 -100.00
2019-10-16 2019-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 103,588 22,857 28.31 15,064 35.31 0.1008
2019-08-12 2019-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 80,731 -11,423 -12.40 11,133 -14.38 0.0836
2019-04-26 2019-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 92,154 38,835 72.84 13,003 114.54 0.1220
2019-01-23 2018-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 53,319 53,319 6,061 0.0687
2018-10-29 2018-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 0 -26,101 -100.00 0 -100.00
2018-07-17 2018-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 26,101 23,442 881.61 3,646 793.63 0.0421
2018-04-30 2018-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 2,659 2,659 408 0.0053
2018-01-25 2017-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 0 -159,130 -100.00 0 -100.00
2017-10-18 2017-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 159,130 159,130 23,087 0.2144
2017-05-04 2017-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 0 -2,954 -100.00 0 -100.00
2017-02-27 2016-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 2,954 2,954 490 0.0091
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.