International Business Machines Corporation
MX ˙ BMV ˙ US4592001014
SecurityMX:IBM / International Business Machines Corporation
InstitutionMercer Global Advisors Inc /adv
Latest Disclosed Ownership287,639 shares
Latest Disclosed Value $ 69,720,902
Mercer Global Advisors Inc /adv ownership in IBM / International Business Machines Corporation

On May 15, 2026 - Mercer Global Advisors Inc /adv filed a 13F-HR form disclosing ownership of 287,639 shares of International Business Machines Corporation (MX:IBM) valued at $69,720,902 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 266,729 shares of International Business Machines Corporation. This represents a change in shares of 7.84% during the quarter.

Mercer Global Advisors Inc /adv 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.

Upgrade to unlock premium data and export to Excel .

Institutional Put/Call Ratios
(Premium Subscription Required)

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 287,639 20,910 7.84 69,721 -11.85 0.1032
2026-02-17 2025-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 266,729 7,167 2.76 79,094 11.48 0.1206
2025-11-14 2025-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 259,562 259,562 70,948 0.1184
2025-08-14 2025-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 0 -223,963 -100.00 0 -100.00
2025-05-15 2025-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 223,963 5,490 2.51 53,513 16.50 0.1228
2025-02-14 2024-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 218,473 5,750 2.70 45,934 -1.59 0.1121
2024-11-14 2024-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 212,723 12,864 6.44 46,675 40.54 0.1092
2024-08-12 2024-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 199,859 6,885 3.57 33,213 92,155.56 0.0905
2024-05-15 2024-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 192,974 37,717 24.29 37 44.00 0.1048
2024-02-15 2023-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 155,257 5,106 3.40 25 19.05 0.0764
2023-11-15 2023-09-30 13F/A-1 INTERNATIONAL BUSINESS MACHS COM 459200101 150,151 624 0.42 21 5.00 0.0800
2023-11-14 2023-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 150,151 624 21 0.0800
2023-08-14 2023-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 149,527 5,404 3.75 20 11.11 0.0794
2023-05-16 2023-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 144,123 -15,259 -9.57 19 -18.18 0.0858
2023-02-09 2022-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 159,382 10,675 7.18 22 -99.88 0.1125
2022-11-15 2022-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 148,707 19,026 14.67 17,668 -3.51 0.1049
2022-08-10 2022-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 129,681 12,850 11.00 18,310 20.54 0.1121
2022-05-10 2022-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 116,831 21,522 22.58 15,190 19.24 0.0895
2022-02-04 2021-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 95,309 -307 -0.32 12,739 -4.10 0.0787
2021-11-10 2021-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 95,616 19,200 25.13 13,284 18.60 0.0928
2021-08-10 2021-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 76,416 8,260 12.12 11,201 23.33 0.0861
2021-08-10 2021-03-31 13F/A-1 INTERNATIONAL BUSINESS MACHS COM 459200101 68,156 8,143 13.57 9,082 20.23 0.0826
2021-05-11 2021-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 60,240 227 8,027 0.0769
2021-02-12 2020-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 60,013 412 0.69 7,554 4.16 0.0943
2020-12-10 2020-09-30 13F INTERNATIONAL BUSINESS MACHS COM COM 459200101 59,601 -710 -1.18 7,252 -0.44 0.1091
2020-08-10 2020-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 60,311 -15,293 -20.23 7,284 -13.15 0.1323
2020-05-18 2020-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 75,604 14,018 22.76 8,387 1.60 0.1846
2020-02-13 2019-12-31 13F INTERNATIONAL BUSINESS MACHS COM COM 459200101 61,586 -892 -1.43 8,255 -9.14 0.1648
2019-11-12 2019-09-30 13F INTERNATIONAL BUSINESS MACHS COM COM 459200101 62,478 7,104 12.83 9,085 18.98 0.2137
2019-08-14 2019-06-30 13F INTERNATIONAL BUSINESS MACHS COM COM 459200101 55,374 11,665 26.69 7,636 23.82 0.2024
2019-04-23 2019-03-31 13F/A-1 INTERNATIONAL BUSINESS MACHS COM COM 459200101 43,709 43,709 6,167 0.2218
2019-04-12 2019-03-31 13F INTERNATIONAL BUSINESS M COM 459200101 43,969 4,998 0.2663
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
(%)
2025-11-14 2025-09-30 13F INTERNATIONAL BUSINESS MACHS COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-08-14 2025-06-30 13F INTERNATIONAL BUSINESS MACHS COM Call 238,029 67,891 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.