Exxon Mobil Corporation
MX ˙ BMV ˙ US30231G1022
SecurityMX:XOM / Exxon Mobil Corporation
InstitutionElefante Mark B
Latest Disclosed Ownership7,550 shares
Latest Disclosed Value $ 1,280,933
Elefante Mark B reports 3.82% decrease in ownership of XOM / Exxon Mobil Corporation

On May 14, 2026 - Elefante Mark B filed a 13F-HR form disclosing ownership of 7,550 shares of Exxon Mobil Corporation (MX:XOM) valued at $1,280,933 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 14, 2026 disclosing 7,850 shares of Exxon Mobil Corporation. This represents a change in shares of -3.82% 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)
2026-05-14 2026-03-31 13F EXXON MOBIL COM 30231G102 7,550 -300 -3.82 1,281 35.59 0.2089
2026-02-14 2025-12-31 13F EXXON MOBIL COM 30231G102 7,850 1,200 18.05 945 26.03 0.5788
2025-11-10 2025-09-30 13F EXXON MOBIL COM 30231G102 6,650 0 0.00 750 4.61 0.4797
2025-07-28 2025-06-30 13F EXXON MOBIL COM 30231G102 6,650 0 0.00 717 -9.37 0.5385
2025-05-06 2025-03-31 13F EXXON MOBIL COM 30231G102 6,650 3,350 101.52 791 123.16 0.6267
2025-02-14 2024-12-31 13F EXXON MOBIL COM 30231G102 3,300 3,300 355 0.3242
2020-05-07 2020-03-31 13F EXXON MOBIL COM 30231G102 0 -2,871 -100.00 0 -100.00
2020-01-15 2019-12-31 13F EXXON MOBIL COM 30231G102 2,871 0 0.00 200 -1.48 0.7261
2019-11-06 2019-09-30 13F EXXON MOBIL COM 30231G102 2,871 2,871 203 0.7975
2019-07-24 2019-06-30 13F EXXON MOBIL COM 30231G102 0 -2,594 -100.00 0 -100.00
2019-05-02 2019-03-31 13F EXXON MOBIL COM 30231G102 2,594 -900 -25.76 209 -12.55 0.9114
2019-01-24 2018-12-31 13F EXXON MOBIL COM 30231G102 3,494 -2,130 -37.87 239 -50.00 1.1437
2018-10-15 2018-09-30 13F EXXON MOBIL COM 30231G102 5,624 0 0.00 478 2.58 1.9145
2018-07-30 2018-06-30 13F EXXON MOBIL COM 30231G102 5,624 -25 -0.44 466 10.43 2.2247
2018-04-24 2018-03-31 13F EXXON MOBIL COM 30231G102 5,649 -338 -5.65 422 -15.60 2.1183
2018-02-02 2017-12-31 13F EXXON MOBIL COM 30231G102 5,987 1,370 29.67 500 32.28 2.3817
2017-10-26 2017-09-30 13F EXXON MOBIL COM 30231G102 4,617 -285 -5.81 378 -4.06 2.7581
2017-07-26 2017-06-30 13F EXXON MOBIL COM 30231G102 4,902 140 2.94 394 0.77 3.1898
2017-05-15 2017-03-31 13F EXXON MOBIL COM 30231G102 4,762 260 5.78 391 -3.93 3.5468
2017-02-14 2016-12-31 13F EXXON MOBIL Common Stock 30231G102 4,502 2,033 82.34 407 89.30 4.9161
2016-11-16 2016-09-30 13F EXXON MOBIL Common Stock 30231G102 2,469 -258 -9.46 215 -16.34 3.4711
2016-08-08 2016-06-30 13F EXXON MOBIL Common Stock 30231G102 2,727 15 0.55 257 13.22 3.8687
2016-05-27 2016-03-31 13F EXXON MOBIL Common Stock 30231G102 2,712 2,712 227 3.6239
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.