International Business Machines Corporation
MX ˙ BMV ˙ US4592001014
SecurityMX:IBM / International Business Machines Corporation
InstitutionBallentine Partners, LLC
Latest Disclosed Ownership20,321 shares
Latest Disclosed Value $ 4,925,607
Ballentine Partners, LLC ownership in IBM / International Business Machines Corporation

On May 14, 2026 - Ballentine Partners, LLC filed a 13F-HR form disclosing ownership of 20,321 shares of International Business Machines Corporation (MX:IBM) valued at $4,925,607 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 3, 2026 disclosing 20,859 shares of International Business Machines Corporation. This represents a change in shares of -2.58% during the quarter.

Ballentine Partners, LLC has a history of taking positions in derivatives of the underlying security (IBM) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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)
2026-05-14 2026-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 20,321 -538 -2.58 4,926 -20.28 0.0481
2026-02-03 2025-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 20,859 150 0.72 6,179 5.73 0.0868
2025-11-03 2025-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 20,709 87 0.42 5,843 -3.87 0.0811
2025-07-15 2025-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 20,622 20 0.10 6,079 18.66 0.0916
2025-05-01 2025-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 20,602 475 2.36 5,123 15.78 0.0888
2025-01-16 2024-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 20,127 1,091 5.73 4,425 5.13 0.0758
2024-10-23 2024-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 19,036 5,772 43.52 4,208 83.44 0.0720
2024-08-06 2024-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 13,264 -1,103 -7.68 2,294 -16.37 0.0424
2024-04-11 2024-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 14,367 1,381 10.63 2,744 29.20 0.0521
2024-01-23 2023-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 12,986 160 1.25 2,124 18.01 0.0433
2023-10-19 2023-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 12,826 194 1.54 1,799 6.45 0.0423
2023-07-26 2023-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 12,632 339 2.76 1,690 4.90 0.0388
2023-04-27 2023-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 12,293 -98 -0.79 1,611 -7.68 0.0405
2023-01-27 2022-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 12,391 1,500 13.77 1,746 34.96 0.0519
2022-10-26 2022-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 10,891 1,106 11.30 1,293 -6.44 0.0447
2022-08-09 2022-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 9,785 369 3.92 1,382 9.86 0.0489
2022-02-14 2021-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 9,416 502 5.63 1,258 1.62 0.0376
2021-10-27 2021-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 8,914 61 0.69 1,238 -4.62 0.0420
2021-08-12 2021-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 8,853 -138 -1.53 1,298 8.35 0.0448
2021-05-11 2021-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 8,991 -1,268 -12.36 1,198 -7.20 0.0444
2021-01-25 2020-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 10,259 85 0.84 1,291 4.28 0.0511
2020-10-22 2020-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 10,174 305 3.09 1,238 3.86 0.0547
2020-07-31 2020-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 9,869 -124 -1.24 1,192 7.39 0.0570
2020-04-23 2020-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 9,993 -1,401 -12.30 1,110 -27.31 0.0646
2020-01-22 2019-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 11,394 98 0.87 1,527 -7.06 0.0692
2019-10-21 2019-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 11,296 -2,828 -20.02 1,643 -15.66 0.0772
2019-07-25 2019-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 14,124 3,028 27.29 1,948 24.47 0.0935
2019-05-09 2019-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 11,096 -1,966 -15.05 1,565 5.39 0.0814
2019-02-04 2018-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 13,062 2,982 29.58 1,485 -2.56 0.0856
2018-10-30 2018-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 10,080 958 10.50 1,524 19.53 0.0796
2018-07-19 2018-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 9,122 1,913 26.54 1,275 15.28 0.0707
2018-04-26 2018-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 7,209 -166 -2.25 1,106 -2.30 0.0621
2018-02-02 2017-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 7,375 158 2.19 1,132 8.12 0.0618
2017-11-06 2017-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 7,217 -3,746 -34.17 1,047 -34.89 0.0578
2017-08-03 2017-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 10,963 4,915 81.27 1,608 52.71 0.1174
2017-05-30 2017-03-31 13F/A-1 INTERNATIONAL BUSINESS MACHS COM 459200101 6,048 -225 -3.59 1,053 2.33 0.0748
2017-05-15 2017-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 307,775 301,502 1,053 0.0751
2017-02-03 2016-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 6,273 -281 -4.29 1,029 -1.34 0.0795
2016-11-01 2016-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 6,554 -68 -1.03 1,043 3.78 0.0847
2016-08-03 2016-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 6,622 247 3.87 1,005 4.04 0.0847
2016-05-09 2016-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 6,375 1,145 21.89 966 34.17 0.0850
2016-01-28 2015-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 5,230 81 1.57 720 -3.61 0.0701
2015-11-03 2015-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 5,149 83 1.64 747 -9.34 0.0784
2015-07-28 2015-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 5,066 17 0.34 824 1.73 0.0802
2015-05-12 2015-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 5,049 5,049 0.00 810 0.0795
2015-02-02 2014-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 0 -5,930 -100.00 0 -100.00
2014-11-05 2014-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 5,930 -326 -5.21 1,126 -0.71 0.1335
2014-08-12 2014-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 6,256 -382 -5.75 1,134 -11.27 0.1343
2014-05-05 2014-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 6,638 -170 -2.50 1,278 0.08 0.1496
2014-02-06 2013-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 6,808 80 1.19 1,277 2.49 0.1435
2013-10-29 2013-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 6,728 1,437 27.16 1,246 23.24 0.1529
2013-07-24 2013-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 5,291 5,291 1,011 0.1360
Disclosed Call 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
(%)
2019-10-21 2019-09-30 13F INTERNATIONAL BUSINESS MACHS COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2019-07-25 2019-06-30 13F INTERNATIONAL BUSINESS MACHS COM Call 1,000 138 n/a n/a n/a
2019-05-09 2019-03-31 13F INTERNATIONAL BUSINESS MACHS COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2019-02-04 2018-12-31 13F INTERNATIONAL BUSINESS MACHS COM Call 1,000 0.00 114 -24.50 n/a n/a n/a
2018-10-30 2018-09-30 13F INTERNATIONAL BUSINESS MACHS COM Call 1,000 0.00 151 7.86 n/a n/a n/a
2018-07-19 2018-06-30 13F INTERNATIONAL BUSINESS MACHS COM Call 1,000 0.00 140 -8.50 n/a n/a n/a
2018-04-26 2018-03-31 13F INTERNATIONAL BUSINESS MACHS COM Call 1,000 0.00 153 0.00 n/a n/a n/a
2018-02-02 2017-12-31 13F INTERNATIONAL BUSINESS MACHS COM Call 1,000 66.67 153 75.86 n/a n/a n/a
2017-11-06 2017-09-30 13F INTERNATIONAL BUSINESS MACHS COM Call 600 87 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.