International Business Machines Corporation
MX ˙ BMV ˙ US4592001014
SecurityMX:IBM / International Business Machines Corporation
InstitutionNorth Star Asset Management Inc
Latest Disclosed Ownership6,397 shares
Latest Disclosed Value $ 1,550,595
North Star Asset Management Inc reports 4.29% increase in ownership of IBM / International Business Machines Corporation

On May 6, 2026 - North Star Asset Management Inc filed a 13F-HR form disclosing ownership of 6,397 shares of International Business Machines Corporation (MX:IBM) valued at $1,550,595 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 6,134 shares of International Business Machines Corporation. This represents a change in shares of 4.29% 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)
2026-05-06 2026-03-31 13F IBM COM 459200101 6,397 263 4.29 1,551 -14.65 0.0404
2026-02-09 2025-12-31 13F IBM COM 459200101 6,134 -299 -4.65 1,817 0.06 0.0733
2025-11-10 2025-09-30 13F IBM COM 459200101 6,433 -910 -12.39 1,815 -16.13 0.0736
2025-08-12 2025-06-30 13F IBM COM 459200101 7,343 100 1.38 2,165 20.16 0.0915
2025-05-08 2025-03-31 13F IBM COM 459200101 7,243 -31 -0.43 1,801 12.63 0.0822
2025-02-19 2024-12-31 13F IBM COM 459200101 7,274 300 4.30 1,599 3.76 0.0708
2024-11-14 2024-09-30 13F IBM COM 459200101 6,974 21 0.30 1,542 28.20 0.0692
2024-08-05 2024-06-30 13F IBM COM 459200101 6,953 798 12.97 1,202 2.30 0.0571
2024-05-08 2024-03-31 13F IBM COM 459200101 6,155 268 4.55 1,175 22.14 0.0555
2024-02-01 2023-12-31 13F IBM COM 459200101 5,887 -120 -2.00 963 14.25 0.0493
2023-10-26 2023-09-30 13F IBM COM 459200101 6,007 -692 -10.33 843 -6.03 0.0484
2023-08-09 2023-06-30 13F IBM COM 459200101 6,699 19 0.28 896 2.40 0.0494
2023-05-10 2023-03-31 13F IBM COM 459200101 6,680 2 0.03 876 -6.91 0.0515
2023-03-06 2022-12-31 13F IBM COM 459200101 6,678 170 2.61 941 21.60 0.0585
2022-11-08 2022-09-30 13F IBM COM 459200101 6,508 979 17.71 773 -1.02 0.0529
2022-07-28 2022-06-30 13F IBM COM 459200101 5,529 -130 -2.30 781 6.11 0.0515
2022-04-29 2022-03-31 13F IBM COM 459200101 5,659 209 3.83 736 1.10 0.0386
2022-02-07 2021-12-31 13F IBM COM 459200101 5,450 -651 -10.67 728 -14.15 0.0366
2021-10-20 2021-09-30 13F IBM COM 459200101 6,101 -84 -1.36 848 -6.50 0.0466
2021-07-30 2021-06-30 13F IBM COM 459200101 6,185 307 5.22 907 15.84 0.0503
2021-04-29 2021-03-31 13F IBM COM 459200101 5,878 215 3.80 783 9.82 0.0469
2021-02-16 2020-12-31 13F IBM COM 459200101 5,663 34 0.60 713 4.09 0.0450
2020-11-02 2020-09-30 13F IBM COM 459200101 5,629 -54 -0.95 685 -0.15 0.0505
2020-07-28 2020-06-30 13F IBM COM 459200101 5,683 -389 -6.41 686 1.78 0.0545
2020-04-24 2020-03-31 13F IBM COM 459200101 6,072 -1,764 -22.51 674 -35.81 0.0650
2020-02-06 2019-12-31 13F IBM COM 459200101 7,836 -24 -0.31 1,050 -8.14 0.0754
2019-10-25 2019-09-30 13F IBM COM 459200101 7,860 -234 -2.89 1,143 2.42 0.0896
2019-08-12 2019-06-30 13F IBM COM 459200101 8,094 -413 -4.85 1,116 -7.00 0.0871
2019-04-26 2019-03-31 13F IBM COM 459200101 8,507 -145 -1.68 1,200 22.08 0.0971
2019-01-29 2018-12-31 13F IBM COM 459200101 8,652 -597 -6.45 983 -29.69 0.0931
2018-10-29 2018-09-30 13F IBM COM 459200101 9,249 426 4.83 1,398 13.38 0.1122
2018-08-10 2018-06-30 13F IBM COM 459200101 8,823 536 6.47 1,233 -2.99 0.1058
2018-04-27 2018-03-31 13F IBM COM 459200101 8,287 11 0.13 1,271 0.08 0.1142
2018-02-01 2017-12-31 13F IBM COM 459200101 8,276 -7,375 -47.12 1,270 -44.08 0.1139
2017-10-25 2017-09-30 13F/A-1 IBM COM 459200101 15,651 -744 -4.54 2,271 -9.95 0.2258
2017-10-25 2017-09-30 13F IBM COM 459200101 16,818 423 2,929
2017-08-16 2017-06-30 13F IBM COM 459200101 16,395 -423 -2.52 2,522 -13.90 0.2567
2017-05-18 2017-03-31 13F IBM COM 459200101 16,818 -57 -0.34 2,929 4.57 0.3094
2017-01-10 2016-12-31 13F IBM COM 459200101 16,875 -514 -2.96 2,801 1.41 0.3085
2016-10-05 2016-09-30 13F IBM COM 459200101 17,389 -100 -0.57 2,762 4.07 0.3113
2016-07-29 2016-06-30 13F/A-1 IBM COM 459200101 17,489 -1,292 -6.88 2,654 -6.68 0.3094
2016-07-28 2016-06-30 13F IBM COM 459200101 18,781 2,844
2016-05-05 2016-03-31 13F IBM COM 459200101 18,781 -1,792 -8.71 2,844 0.46 0.3328
2016-01-28 2015-12-31 13F IBM COM 459200101 20,573 -1,935 -8.60 2,831 -13.24 0.3402
2015-10-28 2015-09-30 13F IBM COM 459200101 22,508 -1,749 -7.21 3,263 -17.31 0.4064
2015-07-30 2015-06-30 13F IBM COM 459200101 24,257 -1,995 -7.60 3,946 -6.34 0.4483
2015-05-15 2015-03-31 13F IBM COM 459200101 26,252 -2,679 -9.26 4,213 -9.24 0.4772
2015-01-16 2014-12-31 13F IBM COM 459200101 28,931 -3,726 -11.41 4,642 -25.12 0.5307
2014-10-28 2014-09-30 13F IBM COM 459200101 32,657 -3,125 -8.73 6,199 -4.42 0.7390
2014-07-30 2014-06-30 13F IBM COM 459200101 35,782 175 0.49 6,486 -5.37 0.7558
2014-04-24 2014-03-31 13F IBM COM 459200101 35,607 -1,764 -4.72 6,854 -2.23 0.8212
2014-02-07 2013-12-31 13F IBM COM 459200101 37,371 -1,357 -3.50 7,010 -2.26 0.8492
2013-10-22 2013-09-30 13F IBM COM 459200101 38,728 -2,255 -5.50 7,172 -8.43 0.9373
2013-08-06 2013-06-30 13F IBM COM 459200101 40,983 40,983 7,832 1.0937
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.