International Business Machines Corporation
MX ˙ BMV ˙ US4592001014
SecurityMX:IBM / International Business Machines Corporation
InstitutionRMB Capital Management, LLC
Latest Disclosed Ownership114,864 shares
Latest Disclosed Value $ 27,841,889
RMB Capital Management, LLC ownership in IBM / International Business Machines Corporation

On May 15, 2026 - RMB Capital Management, LLC filed a 13F-HR form disclosing ownership of 114,864 shares of International Business Machines Corporation (MX:IBM) valued at $27,841,889 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 105,848 shares of International Business Machines Corporation. This represents a change in shares of 8.52% during the quarter.

RMB Capital Management, LLC has a history of taking positions in derivatives of the underlying security (IBM) in the form of stock options.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:IBM / International Business Machines Corporation Historical Put/Call Ratio
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)
2026-05-15 2026-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 114,864 9,016 8.52 27,842 -11.20 0.3750
2026-02-17 2025-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 105,848 254 0.24 31,353 5.23 0.5433
2025-11-13 2025-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 105,594 -955 -0.90 29,794 -5.14 0.5467
2025-08-14 2025-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 106,549 27,259 34.38 31,408 59.30 0.5962
2025-05-15 2025-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 79,290 17,107 27.51 19,716 44.24 0.4862
2025-02-13 2024-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 62,183 7,533 13.78 13,670 13.14 0.3150
2024-11-06 2024-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 54,650 -2,516 -4.40 12,082 22.20 0.2743
2024-08-13 2024-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 57,166 499 0.88 9,887 -8.64 0.2371
2024-05-15 2024-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 56,667 8,184 16.88 10,821 36.47 0.2479
2024-02-14 2023-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 48,483 -2,226 -4.39 7,929 11.46 0.2421
2023-11-13 2023-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 50,709 405 0.81 7,114 5.69 0.2434
2023-08-11 2023-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 50,304 3,613 7.74 6,731 9.98 0.2211
2023-05-11 2023-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 46,691 12,250 35.57 6,121 26.13 0.2138
2023-02-14 2022-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 34,441 13,961 68.17 4,852 99.42 0.1726
2022-11-14 2022-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 20,480 14,984 272.63 2,433 213.53 0.0906
2022-08-16 2022-06-30 13F/A-1 INTERNATIONAL BUSINESS MACHS COM 459200101 5,496 3,378 159.49 776 182.18 0.0267
2022-08-01 2022-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 5,496 3,378 776 0.0289
2022-05-06 2022-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 2,118 12 0.57 275 -2.14 0.0087
2022-01-26 2021-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 2,106 -1,121 -34.74 281 -37.28 0.0085
2021-10-20 2021-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 3,227 980 43.61 448 36.17 0.0147
2021-08-13 2021-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 2,247 2,247 329 0.0110
2021-02-11 2020-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 0 -3,185 -100.00 0 -100.00
2020-11-10 2020-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 3,185 3,185 388 0.0168
2020-02-13 2019-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 0 -3,695 -100.00 0 -100.00
2019-11-12 2019-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 3,695 11 0.30 537 5.71 0.0141
2019-08-13 2019-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 3,684 -3,365 -47.74 508 -48.94 0.0129
2019-05-15 2019-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 7,049 2,194 45.19 995 80.25 0.0251
2019-02-13 2018-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 4,855 -1,591 -24.68 552 -43.38 0.0141
2018-11-14 2018-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 6,446 -107 -1.63 975 6.56 0.0234
2018-08-13 2018-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 6,553 1,059 19.28 915 8.54 0.0218
2018-05-14 2018-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 5,494 -3,107 -36.12 843 -36.14 0.0216
2018-02-14 2017-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 8,601 13 0.15 1,320 5.94 0.0343
2017-11-14 2017-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 8,588 137 1.62 1,246 -4.15 0.0322
2017-08-14 2017-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 8,451 1,248 17.33 1,300 3.67 0.0372
2017-05-12 2017-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 7,203 -663 -8.43 1,254 -3.98 0.0519
2017-03-10 2016-12-31 13F/A-1 INTERNATIONAL BUSINESS MACHS COM 459200101 7,866 7,866 9.20 1,306 4.15 0.0702
2017-02-13 2016-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 7,866 1,306
2016-05-09 2016-03-31 13F IBM COM 459200101 0 0 0 0.0000
2016-02-12 2015-12-31 13F IBM COM 459200101 0 -1,639 -100.00 0 -100.00
2015-11-12 2015-09-30 13F IBM COM 459200101 1,639 -70 -4.10 238 -14.39 0.0158
2015-08-13 2015-06-30 13F IBM COM 459200101 1,709 335 24.38 278 25.79 0.0181
2015-05-12 2015-03-31 13F IBM COM 459200101 1,374 38 2.84 221 3.27 0.0133
2015-02-11 2014-12-31 13F INTL BUSINESS MACHINES COM 459200101 1,336 -196 -12.79 214 -26.46 0.0130
2014-11-13 2014-09-30 13F INTERNATIONAL BUSINESS MACHIN COM 459200101 1,532 -186 -10.83 291 -6.73 0.0178
2014-08-11 2014-06-30 13F INTERNATIONAL BUSINESS MACHIN COM 459200101 1,718 -24 -1.38 312 -6.87 0.0197
2014-05-12 2014-03-31 13F INTERNATIONAL BUSINESS MACHIN COM 459200101 1,742 29 1.69 335 4.36 0.0231
2014-02-10 2013-12-31 13F INTERNATIONAL BUSINESS MACHIN COM 459200101 1,713 -525 -23.46 321 -22.46 0.0222
2013-11-14 2013-09-30 13F INTL BUSINESS MACHINES COM 459200101 2,238 -6,546 -74.52 414 -75.33 0.0297
2013-08-14 2013-06-30 13F/A-1 INTL BUSINESS MACHINES COM 459200101 8,784 8,784 1,678 0.1271
2013-08-12 2013-06-30 13F INTL BUSINESS MACHINES COM 459200101 8,784 1,678 0.1290
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-15 2026-03-31 13F INTERNATIONAL BUSINESS MACHS COM Put 1,000 242 -18.24 n/a n/a n/a
2026-02-17 2025-12-31 13F INTERNATIONAL BUSINESS MACHS COM Put 296 n/a n/a n/a
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.