Exxon Mobil Corporation
MX ˙ BMV ˙ US30231G1022
SecurityMX:XOM / Exxon Mobil Corporation
InstitutionRound Rock Advisors, LLC
Latest Disclosed Ownership31,660 shares
Latest Disclosed Value $ 5,371,472
Round Rock Advisors, LLC reports 1.15% decrease in ownership of XOM / Exxon Mobil Corporation

On May 15, 2026 - Round Rock Advisors, LLC filed a 13F-HR form disclosing ownership of 31,660 shares of Exxon Mobil Corporation (MX:XOM) valued at $5,371,472 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on April 7, 2026 disclosing 32,027 shares of Exxon Mobil Corporation. This represents a change in shares of -1.15% 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)
2026-05-15 2026-03-31 13F EXXON MOBIL COM 30231G102 31,660 -367 -1.15 5,371 39.36 0.8219
2026-04-07 2025-12-31 13F/A-1 EXXON MOBIL COM 30231G102 32,027 147 0.46 3,854 7.23 0.5798
2026-01-27 2025-12-31 13F EXXON MOBIL COM 30231G102 32,027 147 3,854 0.5795
2025-11-14 2025-09-30 13F EXXON MOBIL COM 30231G102 31,880 -1,638 -4.89 3,594 -0.53 0.5695
2025-08-06 2025-06-30 13F EXXON MOBIL COM 30231G102 33,518 -1,111 -3.21 3,613 -12.26 0.6233
2025-04-30 2025-03-31 13F EXXON MOBIL COM 30231G102 34,629 3,065 9.71 4,118 21.30 0.7638
2025-01-24 2024-12-31 13F EXXON MOBIL COM 30231G102 31,564 15,465 96.06 3,395 79.92 0.6965
2024-11-04 2024-09-30 13F EXXON MOBIL COM 30231G102 16,099 127 0.80 1,887 2.67 0.4411
2024-08-02 2024-06-30 13F EXXON MOBIL COM 30231G102 15,972 -944 -5.58 1,839 -6.51 0.4477
2024-04-24 2024-03-31 13F EXXON MOBIL COM 30231G102 16,916 66 0.39 1,966 16.75 0.4711
2024-01-29 2023-12-31 13F EXXON MOBIL COM 30231G102 16,850 36 0.21 1,685 -14.78 0.4242
2023-10-16 2023-09-30 13F EXXON MOBIL COM 30231G102 16,814 55 0.33 1,977 9.96 0.7501
2023-07-20 2023-06-30 13F EXXON MOBIL COM 30231G102 16,759 115 0.69 1,797 -1.53 0.6495
2023-05-02 2023-03-31 13F EXXON MOBIL COM 30231G102 16,644 -669 -3.86 1,825 -4.40 0.6999
2023-01-19 2022-12-31 13F EXXON MOBIL COM 30231G102 17,313 -80 -0.46 1,910 25.67 0.7819
2022-10-20 2022-09-30 13F EXXON MOBIL COM 30231G102 17,393 8,821 102.90 1,519 106.95 0.6880
2022-07-22 2022-06-30 13F EXXON MOBIL COM 30231G102 8,572 -666 -7.21 734 -3.80 0.3307
2022-04-28 2022-03-31 13F EXXON MOBIL COM 30231G102 9,238 -1,667 -15.29 763 14.39 0.3095
2022-01-20 2021-12-31 13F EXXON MOBIL COM 30231G102 10,905 4,893 81.39 667 88.42 0.2956
2021-10-25 2021-09-30 13F EXXON MOBIL COM 30231G102 6,012 0 0.00 354 -6.60 0.2619
2021-08-05 2021-06-30 13F EXXON MOBIL COM 30231G102 6,012 229 3.96 379 17.34 0.2763
2021-04-26 2021-03-31 13F EXXON MOBIL COM 30231G102 5,783 231 4.16 323 41.67 0.2567
2021-02-19 2020-12-31 13F EXXON MOBIL COM 30231G102 5,552 5,552 228 0.2088
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.