Exxon Mobil Corporation
MX ˙ BMV ˙ US30231G1022
SecurityMX:XOM / Exxon Mobil Corporation
InstitutionCorundum Group, Inc.
Latest Disclosed Ownership18,605 shares
Latest Disclosed Value $ 3,156,524
Corundum Group, Inc. reports 4.84% increase in ownership of XOM / Exxon Mobil Corporation

On April 20, 2026 - Corundum Group, Inc. filed a 13F-HR form disclosing ownership of 18,605 shares of Exxon Mobil Corporation (MX:XOM) valued at $3,156,524 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 12, 2026 disclosing 17,746 shares of Exxon Mobil Corporation. This represents a change in shares of 4.84% 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)
2026-04-20 2026-03-31 13F EXXON MOBIL CS 30231G102 18,605 859 4.84 3,157 47.82 1.0550
2026-01-12 2025-12-31 13F EXXON MOBIL CS 30231G102 17,746 871 5.16 2,136 12.25 0.7166
2025-10-24 2025-09-30 13F EXXON MOBIL CS 30231G102 16,875 -282 -1.64 1,903 2.87 0.7817
2025-07-21 2025-06-30 13F EXXON MOBIL CS 30231G102 17,157 134 0.79 1,850 -8.65 0.8178
2025-04-23 2025-03-31 13F EXXON MOBIL CS 30231G102 17,023 -7,940 -31.81 2,025 -24.62 0.9710
2025-01-16 2024-12-31 13F EXXON MOBIL CS 30231G102 24,963 8,049 47.59 2,685 35.47 1.0027
2024-10-21 2024-09-30 13F EXXON MOBIL CS 30231G102 16,914 -7,899 -31.83 1,983 -30.60 0.9045
2024-07-17 2024-06-30 13F EXXON MOBIL CS 30231G102 24,813 7,979 47.40 2,856 46.01 1.1160
2024-04-15 2024-03-31 13F EXXON MOBIL CS 30231G102 16,834 -168 -0.99 1,957 15.13 0.9437
2024-01-24 2023-12-31 13F EXXON MOBIL CS 30231G102 17,002 159 0.94 1,700 -14.19 0.8523
2023-10-17 2023-09-30 13F EXXON MOBIL CS 30231G102 16,843 -3,270 -16.26 1,980 -8.21 1.1252
2023-07-21 2023-06-30 13F EXXON MOBIL CS 30231G102 20,113 -3,544 -14.98 2,157 -16.85 1.0759
2023-04-24 2023-03-31 13F EXXON MOBIL CS 30231G102 23,657 7,370 45.25 2,594 259,300.00 1.2271
2023-01-12 2022-12-31 13F EXXON MOBIL CS 30231G102 16,287 150 0.93 2 -99.93 1.0141
2022-10-18 2022-09-30 13F EXXON MOBIL CS 30231G102 16,137 362 2.29 1,409 4.29 0.8864
2022-07-25 2022-06-30 13F EXXON MOBIL CS 30231G102 15,775 136 0.87 1,351 4.57 0.9127
2022-05-02 2022-03-31 13F EXXON MOBIL CS 30231G102 15,639 345 2.26 1,292 38.03 1.2008
2022-02-07 2021-12-31 13F EXXON MOBIL CS 30231G102 15,294 492 3.32 936 7.46 0.6094
2021-11-02 2021-09-30 13F EXXON MOBIL CS 30231G102 14,802 914 6.58 871 -0.57 0.6457
2021-08-02 2021-06-30 13F EXXON MOBIL CS 30231G102 13,888 276 2.03 876 15.26 0.5745
2021-05-10 2021-03-31 13F EXXON MOBIL CS 30231G102 13,612 2,720 24.97 760 69.27 0.5939
2021-02-03 2020-12-31 13F EXXON MOBIL CS 30231G102 10,892 -2,083 -16.05 449 0.90 0.3741
2020-11-12 2020-09-30 13F/A-1 EXXON MOBIL CS 30231G102 12,975 972 8.10 445 -17.13 0.4311
2020-08-07 2020-06-30 13F/A-1 EXXON MOBIL CS 30231G102 12,003 839 7.52 537 26.65 0.6440
2020-05-07 2020-03-31 13F/A-1 EXXON MOBIL CS 30231G102 11,164 -79 -0.70 424 -45.99 0.6029
2020-01-28 2019-12-31 13F EXXON MOBIL CS 30231G102 11,243 706 6.70 785 5.51 0.8244
2019-11-01 2019-09-30 13F/A-1 EXXON MOBIL CS 30231G102 10,537 0 0.00 744 -7.81 0.8618
2019-08-02 2019-06-30 13F EXXON MOBIL CS 30231G102 10,537 -863 -7.57 807 -12.38 0.9272
2019-05-08 2019-03-31 13F EXXON MOBIL CS 30231G102 11,400 -4,177 -26.82 921 -13.28 1.0537
2019-02-19 2018-12-31 13F EXXON MOBIL CS 30231G102 15,577 4,341 38.63 1,062 14.19 0.9750
2018-08-07 2018-06-30 13F EXXON MOBIL CS 30231G102 11,236 71 0.64 930 11.64 1.1465
2018-05-08 2018-03-31 13F EXXON MOBIL CS 30231G102 11,165 -22 -0.20 833 -11.00 0.9008
2018-02-13 2017-12-31 13F EXXON MOBIL COM 30231G102 11,187 3 0.03 936 2.07 1.0101
2017-11-03 2017-09-30 13F EXXON MOBIL COM 30231G102 11,184 653 6.20 917 7.88 0.9665
2017-08-01 2017-06-30 13F EXXON MOBIL CS 30231G102 10,531 206 2.00 850 0.35 1.8832
2017-04-18 2017-03-31 13F EXXON MOBIL CS 30231G102 10,325 -41 -0.40 847 -9.51 1.0680
2017-02-09 2016-12-31 13F EXXON MOBIL CS 30231G102 10,366 0 0.00 936 3.43 1.3758
2016-11-04 2016-09-30 13F EXXON MOBIL CS 30231G102 10,366 176 1.73 905 -5.24 1.4636
2016-07-29 2016-06-30 13F EXXON MOBIL CS 30231G102 10,190 -2,601 -20.33 955 -10.66 1.4688
2016-05-16 2016-03-31 13F EXXON MOBIL CS 30231G102 12,791 2,615 25.70 1,069 34.97 2.8168
2016-02-11 2015-12-31 13F EXXON MOBIL CS 30231G102 10,176 460 4.73 792 9.70 2.3688
2015-11-05 2015-09-30 13F EXXON MOBIL CS 30231G102 9,716 6,453 197.76 722 166.42 2.5594
2015-08-11 2015-06-30 13F EXXON MOBIL CS 30231G102 3,263 -32 -0.97 271 -3.21 0.9548
2015-05-08 2015-03-31 13F EXXON MOBIL CS 30231G102 3,295 3,295 0.00 280 0.9462
2015-02-05 2014-12-31 13F EXXON MOBIL CS 30231G102 0 -3,282 -100.00 0 -100.00
2014-11-04 2014-09-30 13F EXXON MOBIL CS 30231G102 3,282 400 13.88 309 6.55 1.4649
2014-08-05 2014-06-30 13F EXXON MOBIL CS 30231G102 2,882 69 2.45 290 5.45 1.3597
2014-05-08 2014-03-31 13F EXXON MOBIL CS 30231G102 2,813 -69 -2.39 275 -5.82 1.3324
2014-02-19 2013-12-31 13F EXXON MOBIL CS 30231G102 2,882 100 3.59 292 22.18 1.3714
2013-11-13 2013-09-30 13F EXXON MOBIL CS 30231G102 2,782 -142 -4.86 239 -9.47 1.3386
2013-08-13 2013-06-30 13F EXXON MOBIL CS 30231G102 2,924 2,924 264 1.6252
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.