Exxon Mobil Corporation
MX ˙ BMV ˙ US30231G1022
SecurityMX:XOM / Exxon Mobil Corporation
InstitutionCastellan Group, LLC
Latest Disclosed Ownership14,862 shares
Latest Disclosed Value $ 2,521,487
Castellan Group, LLC reports 76.40% decrease in ownership of XOM / Exxon Mobil Corporation

On April 23, 2026 - Castellan Group, LLC filed a 13F-HR form disclosing ownership of 14,862 shares of Exxon Mobil Corporation (MX:XOM) valued at $2,521,487 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 62,973 shares of Exxon Mobil Corporation. This represents a change in shares of -76.40% 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-04-23 2026-03-31 13F EXXON MOBIL COM 30231G102 14,862 -48,111 -76.40 2,521 -66.73 0.3475
2026-01-23 2025-12-31 13F EXXON MOBIL COM 30231G102 62,973 35,749 131.31 7,578 146.92 0.9530
2025-10-23 2025-09-30 13F EXXON MOBIL COM 30231G102 27,224 754 2.85 3,070 7.57 0.4446
2025-08-12 2025-06-30 13F/A-1 EXXON MOBIL COM 30231G102 26,470 740 2.88 2,853 -6.76 0.5257
2025-07-24 2025-06-30 13F EXXON MOBIL COM 30231G102 26,470 740 2,853 0.5257
2025-05-08 2025-03-31 13F EXXON MOBIL COM 30231G102 25,730 2,940 12.90 3,060 24.85 0.8557
2025-01-29 2024-12-31 13F EXXON MOBIL COM 30231G102 22,790 -295 -1.28 2,452 -9.42 1.0622
2024-11-25 2024-09-30 13F EXXON MOBIL COM 30231G102 23,085 10,970 90.55 2,706 94.12 1.1408
2024-08-12 2024-06-30 13F EXXON MOBIL COM 30231G102 12,115 -1,135 -8.57 1,395 -9.48 0.6639
2024-05-15 2024-03-31 13F EXXON MOBIL COM 30231G102 13,250 -237 -1.76 1,540 14.24 0.7885
2024-02-14 2023-12-31 13F EXXON MOBIL COM 30231G102 13,487 1,930 16.70 1,348 -0.74 0.8375
2023-11-15 2023-09-30 13F EXXON MOBIL COM 30231G102 11,557 -957 -7.65 1,359 1.19 0.9549
2023-08-14 2023-06-30 13F EXXON MOBIL COM 30231G102 12,514 1,014 8.82 1,342 6.42 0.8578
2023-05-17 2023-03-31 13F EXXON MOBIL COM 30231G102 11,500 -1,040 -8.29 1,261 -8.82 0.8614
2023-02-16 2022-12-31 13F EXXON MOBIL COM 30231G102 12,540 -775 -5.82 1,383 18.92 0.9640
2022-11-15 2022-09-30 13F EXXON MOBIL COM 30231G102 13,315 -90 -0.67 1,163 1.31 0.9039
2022-08-15 2022-06-30 13F/A-1 EXXON MOBIL COM 30231G102 13,405 -1,427 -9.62 1,148 -6.29 0.9097
2022-08-15 2022-06-30 13F EXXON MOBIL COM 30231G102 14,832 1,225
2022-05-23 2022-03-31 13F EXXON MOBIL COM 30231G102 14,832 -10,866 -42.28 1,225 -22.07 0.8496
2022-02-16 2021-12-31 13F EXXON MOBIL COM 30231G102 25,698 2,138 9.07 1,572 13.42 1.0890
2021-11-15 2021-09-30 13F EXXON MOBIL COM 30231G102 23,560 -1,072 -4.35 1,386 -10.81 0.7135
2021-08-16 2021-06-30 13F EXXON MOBIL COM 30231G102 24,632 0 0.00 1,554 13.02 0.6518
2021-05-14 2021-03-31 13F EXXON MOBIL COM 30231G102 24,632 -6,158 -20.00 1,375 8.35 0.7348
2021-02-16 2020-12-31 13F EXXON MOBIL COM 30231G102 30,790 30,790 1,269 1.3711
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.