Exxon Mobil Corporation
MX ˙ BMV ˙ US30231G1022
SecurityMX:XOM / Exxon Mobil Corporation
InstitutionGreat Valley Advisor Group, Inc.
Latest Disclosed Ownership50,183 shares
Latest Disclosed Value $ 8,513,686
Great Valley Advisor Group, Inc. reports 6.25% decrease in ownership of XOM / Exxon Mobil Corporation

On May 11, 2026 - Great Valley Advisor Group, Inc. filed a 13F-HR form disclosing ownership of 50,183 shares of Exxon Mobil Corporation (MX:XOM) valued at $8,513,686 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 53,529 shares of Exxon Mobil Corporation. This represents a change in shares of -6.25% 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)
2026-05-11 2026-03-31 13F EXXON MOBIL COM 30231G102 50,183 -3,346 -6.25 8,514 32.17 0.1547
2026-02-12 2025-12-31 13F EXXON MOBIL COM 30231G102 53,529 -2,987 -5.29 6,441 1.10 0.1238
2025-11-14 2025-09-30 13F EXXON MOBIL COM 30231G102 56,516 -2,075 -3.54 6,372 0.87 0.1278
2025-08-14 2025-06-30 13F EXXON MOBIL COM 30231G102 58,591 3,832 7.00 6,316 -3.01 0.1399
2025-05-08 2025-03-31 13F EXXON MOBIL COM 30231G102 54,759 -28,830 -34.49 6,513 -27.58 0.1402
2025-02-24 2024-12-31 13F EXXON MOBIL COM 30231G102 83,589 1,512 1.84 8,992 -6.53 0.2013
2024-11-12 2024-09-30 13F EXXON MOBIL COM 30231G102 82,077 10,835 15.21 9,621 17.30 0.2364
2024-07-16 2024-06-30 13F EXXON MOBIL COM 30231G102 71,242 280 0.39 8,201 -0.57 0.2295
2024-05-06 2024-03-31 13F EXXON MOBIL COM 30231G102 70,962 13,834 24.22 8,249 44.40 0.2505
2024-02-06 2023-12-31 13F EXXON MOBIL COM 30231G102 57,128 9,754 20.59 5,712 2.57 0.2004
2023-11-07 2023-09-30 13F EXXON MOBIL COM 30231G102 47,374 3,654 8.36 5,570 18.77 0.2309
2023-08-10 2023-06-30 13F EXXON MOBIL COM 30231G102 43,720 1,365 3.22 4,689 0.97 0.1965
2023-05-03 2023-03-31 13F EXXON MOBIL COM 30231G102 42,355 7,654 22.06 4,645 21.35 0.2166
2023-02-01 2022-12-31 13F EXXON MOBIL COM 30231G102 34,701 -4,892 -12.36 3,828 10.70 0.1956
2022-10-21 2022-09-30 13F EXXON MOBIL COM 30231G102 39,593 -4,674 -10.56 3,457 -8.81 0.1936
2022-07-19 2022-06-30 13F EXXON MOBIL COM 30231G102 44,267 5,479 14.13 3,791 26.75 0.2083
2022-04-20 2022-03-31 13F EXXON MOBIL COM 30231G102 38,788 -1,163 -2.91 2,991 23.49 0.1744
2022-02-10 2021-12-31 13F EXXON MOBIL COM 30231G102 39,951 -3,665 -8.40 2,422 -5.58 0.1497
2021-10-14 2021-09-30 13F EXXON MOBIL COM 30231G102 43,616 -18,873 -30.20 2,565 -33.81 0.1768
2021-07-27 2021-06-30 13F EXXON MOBIL COM 30231G102 62,489 18,877 43.28 3,875 59.14 0.2865
2021-04-20 2021-03-31 13F EXXON MOBIL COM 30231G102 43,612 148 0.34 2,435 35.88 0.2343
2021-01-29 2020-12-31 13F EXXON MOBIL COM 30231G102 43,464 4,934 12.81 1,792 35.55 0.1854
2020-10-21 2020-09-30 13F EXXON MOBIL COM 30231G102 38,530 22,228 136.35 1,322 81.59 0.1623
2020-07-31 2020-06-30 13F EXXON MOBIL COM 30231G102 16,302 2,281 16.27 728 36.59 0.1192
2020-05-15 2020-03-31 13F EXXON MOBIL COM 30231G102 14,021 -2,764 -16.47 533 -54.52 0.1412
2020-02-10 2019-12-31 13F EXXON MOBIL COM 30231G102 16,785 -7,831 -31.81 1,172 -32.45 0.2610
2019-10-25 2019-09-30 13F EXXON MOBIL COM 30231G102 24,616 3,335 15.67 1,735 6.51 0.4188
2019-07-30 2019-06-30 13F EXXON MOBIL COM 30231G102 21,281 5,375 33.79 1,629 26.77 0.4093
2019-04-26 2019-03-31 13F EXXON MOBIL COM 30231G102 15,906 531 3.45 1,285 22.61 0.4089
2019-04-11 2018-12-31 13F EXXON MOBIL COM 30231G102 15,375 15,375 1,048 0.3914
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.