International Business Machines Corporation
MX ˙ BMV ˙ US4592001014
SecurityMX:IBM / International Business Machines Corporation
InstitutionNatixis Advisors, L.p.
Latest Disclosed Ownership620,861 shares
Latest Disclosed Value $ 150,490
Natixis Advisors, L.p. reports 7.25% decrease in ownership of IBM / International Business Machines Corporation

On May 13, 2026 - Natixis Advisors, L.p. filed a 13F-HR form disclosing ownership of 620,861 shares of International Business Machines Corporation (MX:IBM) valued at $150,490 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 669,394 shares of International Business Machines Corporation. This represents a change in shares of -7.25% 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-13 2026-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 620,861 -48,533 -7.25 150 -24.24 0.2093
2026-02-10 2025-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 669,394 12,525 1.91 198 7.03 0.2810
2025-11-13 2025-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 656,869 -7,429 -1.12 185 -5.13 0.2705
2025-08-13 2025-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 664,298 8,757 1.34 196 19.63 0.3107
2025-05-08 2025-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 655,541 139,023 26.92 163 44.25 0.3012
2025-02-10 2024-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 516,518 48,819 10.44 114 9.71 0.2122
2024-11-06 2024-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 467,699 124,677 36.35 103 74.58 0.2016
2024-08-01 2024-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 343,022 -19,038 -5.26 59 -14.49 0.1290
2024-04-25 2024-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 362,060 -14,370 -3.82 69 13.11 0.1590
2024-02-06 2023-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 376,430 4,123 1.11 62 17.31 0.1621
2023-11-13 2023-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 372,307 57,170 18.14 52 23.81 0.1597
2023-08-15 2023-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 315,137 62,292 24.64 42 27.27 0.1302
2023-05-11 2023-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 252,845 -63,011 -19.95 33 -25.00 0.1141
2023-01-27 2022-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 315,856 58,112 22.55 45 -99.86 0.1682
2022-11-14 2022-09-30 13F INTL BUSINESS MACHINES COM 459200101 257,744 -106,516 -29.24 30,623 -40.46 0.1295
2022-08-12 2022-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 364,260 150,126 70.11 51,430 84.72 0.2262
2022-05-12 2022-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 214,134 45,245 26.79 27,842 23.34 0.1062
2022-02-08 2021-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 168,889 34,594 25.76 22,574 20.99 0.0862
2021-11-15 2021-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 134,295 -1,027 -0.76 18,658 -5.94 0.0767
2021-08-12 2021-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 135,322 25,046 22.71 19,837 34.99 0.0926
2021-05-05 2021-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 110,276 6,776 6.55 14,695 12.79 0.0767
2021-02-12 2020-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 103,500 10,000 10.70 13,029 14.53 0.0751
2020-11-12 2020-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 93,500 1,584 1.72 11,376 2.48 0.0716
2020-08-11 2020-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 91,916 18,387 25.01 11,101 36.09 0.0737
2020-04-27 2020-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 73,529 11,197 17.96 8,157 -2.37 0.0665
2020-02-10 2019-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 62,332 11,671 23.04 8,355 13.41 0.0589
2019-11-12 2019-09-30 13F INTL BUSINESS MACHS COM 459200101 50,661 11,685 29.98 7,367 37.06 0.0585
2019-08-12 2019-06-30 13F INTL BUSINESS MACHS COM 459200101 38,976 3,909 11.15 5,375 8.63 0.0439
2019-05-15 2019-03-31 13F/A-1 INTL BUSINESS MACHS COM 459200101 35,067 7,226 25.95 4,948 56.38 0.0433
2019-05-15 2019-03-31 13F INTL BUSINESS MACHS COM 459200101 35,067 7,226 4,948
2019-02-13 2018-12-31 13F/A-1 INTERNATIONAL BUSINESS MACHS COM 459200101 27,841 1,829 7.03 3,164 -19.55 0.0312
2019-02-13 2018-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 27,841 1,829 3,164
2018-11-13 2018-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 26,012 5,829 28.88 3,933 39.96 0.0346
2018-08-14 2018-06-30 13F/A-1 INTERNATIONAL BUSINESS MACHS COM 459200101 20,183 -8,706 -30.14 2,810 -36.60 0.0268
2018-08-14 2018-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 20,183 2,810
2018-05-10 2018-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 28,889 3,888 15.55 4,432 15.54 0.0437
2018-02-14 2017-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 25,001 768 3.17 3,836 9.13 0.0391
2017-11-14 2017-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 24,233 1,021 4.40 3,515 -1.57 0.0371
2017-07-27 2017-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 23,212 -9,738 -29.55 3,571 -37.77 0.0387
2017-05-12 2017-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 32,950 2,454 8.05 5,738 13.35 0.0636
2017-02-07 2016-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 30,496 1,566 5.41 5,062 10.14 0.0609
2016-11-04 2016-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 28,930 -7,713 -21.05 4,596 -17.37 0.0595
2016-08-01 2016-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 36,643 -17,647 -32.51 5,562 -32.35 0.0769
2016-05-06 2016-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 54,290 5,400 11.05 8,222 22.21 0.1230
2016-02-12 2015-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 48,890 5,557 12.82 6,728 7.10 0.1103
2015-11-12 2015-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 43,333 -6,549 -13.13 6,282 -22.58 0.1090
2015-08-14 2015-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 49,882 -2,951 -5.59 8,114 -4.32 0.1378
2015-05-15 2015-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 52,833 13,248 33.47 8,480 33.52 0.1489
2015-02-05 2014-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 39,585 -14,077 -26.23 6,351 -37.66 0.1189
2014-11-03 2014-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 53,662 3,569 7.12 10,187 12.19 0.2044
2014-08-13 2014-06-30 13F INTERNATIONAL COM 459200101 50,093 -4,774 -8.70 9,080 -14.02 0.1301
2014-05-13 2014-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 54,867 7,126 14.93 10,561 17.93 0.1625
2014-02-12 2013-12-31 13F INTERNATIONAL COM 459200101 47,741 -7,102 -12.95 8,955 -11.83 0.1466
2013-10-30 2013-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 54,843 -810 -1.46 10,156 -4.51 0.1870
2013-07-19 2013-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 55,653 55,653 10,636 0.2119
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.