Exxon Mobil Corporation
MX ˙ BMV ˙ US30231G1022
SecurityMX:XOM / Exxon Mobil Corporation
InstitutionGrandfield & Dodd, Llc
Latest Disclosed Ownership105,125 shares
Latest Disclosed Value $ 17,835,656
Grandfield & Dodd, Llc reports 1.20% decrease in ownership of XOM / Exxon Mobil Corporation

On May 7, 2026 - Grandfield & Dodd, Llc filed a 13F-HR form disclosing ownership of 105,125 shares of Exxon Mobil Corporation (MX:XOM) valued at $17,835,656 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 106,407 shares of Exxon Mobil Corporation. This represents a change in shares of -1.20% 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)
2026-05-07 2026-03-31 13F EXXON MOBIL COM 30231G102 105,125 -1,282 -1.20 17,836 39.28 1.0070
2026-02-10 2025-12-31 13F EXXON MOBIL COM 30231G102 106,407 556 0.53 12,805 7.30 0.7253
2025-10-30 2025-09-30 13F EXXON MOBIL COM 30231G102 105,851 210 0.20 11,935 4.79 0.6770
2025-08-08 2025-06-30 13F EXXON MOBIL COM 30231G102 105,641 -591 -0.56 11,388 -9.86 0.6669
2025-05-02 2025-03-31 13F EXXON MOBIL COM 30231G102 106,232 -345 -0.32 12,634 10.21 0.7833
2025-02-06 2024-12-31 13F EXXON MOBIL COM 30231G102 106,577 -60 -0.06 11,465 -8.29 0.7069
2024-11-08 2024-09-30 13F EXXON MOBIL COM 30231G102 106,637 -325 -0.30 12,500 1.52 0.7407
2024-08-09 2024-06-30 13F EXXON MOBIL COM 30231G102 106,962 -981 -0.91 12,314 -1.86 0.7796
2024-05-06 2024-03-31 13F EXXON MOBIL COM 30231G102 107,943 -19 -0.02 12,547 16.24 0.7918
2024-01-31 2023-12-31 13F EXXON MOBIL COM 30231G102 107,962 3,101 2.96 10,794 -12.45 0.7459
2023-10-26 2023-09-30 13F EXXON MOBIL COM 30231G102 104,861 -2,845 -2.64 12,330 6.74 0.9059
2023-08-08 2023-06-30 13F EXXON MOBIL COM 30231G102 107,706 -49,015 -31.28 11,552 -32.79 0.8075
2023-04-28 2023-03-31 13F EXXON MOBIL COM 30231G102 156,721 612 0.39 17,186 -0.19 1.2011
2023-01-20 2022-12-31 13F EXXON MOBIL COM 30231G102 156,109 -2,161 -1.37 17,219 24.59 1.2598
2022-11-04 2022-09-30 13F EXXON MOBIL COM 30231G102 158,270 -2,002 -1.25 13,820 0.66 1.1283
2022-08-01 2022-06-30 13F EXXON MOBIL COM 30231G102 160,272 -764 -0.47 13,730 3.23 1.0814
2022-04-19 2022-03-31 13F EXXON MOBIL COM 30231G102 161,036 1,826 1.15 13,300 36.55 0.9026
2022-02-08 2021-12-31 13F EXXON MOBIL COM 30231G102 159,210 -985 -0.61 9,740 3.40 0.6266
2021-10-28 2021-09-30 13F EXXON MOBIL COM 30231G102 160,195 4,017 2.57 9,420 -4.37 0.6575
2021-07-28 2021-06-30 13F EXXON MOBIL COM 30231G102 156,178 -257 -0.16 9,850 12.83 0.6816
2021-04-22 2021-03-31 13F EXXON MOBIL COM 30231G102 156,435 -4,570 -2.84 8,730 31.48 0.6527
2021-01-29 2020-12-31 13F EXXON MOBIL COM 30231G102 161,005 10,515 6.99 6,640 28.43 0.5210
2020-11-03 2020-09-30 13F EXXON MOBIL COM 30231G102 150,490 1,384 0.93 5,170 -22.49 0.4657
2020-07-24 2020-06-30 13F EXXON MOBIL COM 30231G102 149,106 -503 -0.34 6,670 17.41 0.6453
2020-05-14 2020-03-31 13F EXXON MOBIL COM 30231G102 149,609 -49,433 -24.84 5,681 -59.10 0.6698
2020-02-07 2019-12-31 13F EXXON MOBIL COM 30231G102 199,042 -5,643 -2.76 13,889 -3.90 1.2652
2019-10-30 2019-09-30 13F EXXON MOBIL COM 30231G102 204,685 -703 -0.34 14,453 -8.17 1.4221
2019-07-29 2019-06-30 13F EXXON MOBIL COM 30231G102 205,388 -6,545 -3.09 15,739 -8.09 1.5557
2019-04-26 2019-03-31 13F EXXON MOBIL COM 30231G102 211,933 -4,554 -2.10 17,124 16.00 1.7833
2019-02-12 2018-12-31 13F EXXON MOBIL COM 30231G102 216,487 -10,422 -4.59 14,762 -23.48 1.7470
2018-11-02 2018-09-30 13F EXXON MOBIL COM 30231G102 226,909 -872 -0.38 19,292 2.38 1.9881
2018-07-27 2018-06-30 13F EXXON MOBIL COM 30231G102 227,781 -190 -0.08 18,844 10.79 2.0703
2018-05-04 2018-03-31 13F/A-1 EXXON MOBIL COM 30231G102 227,971 -8,849 -3.74 17,009 -14.13 1.8973
2018-05-04 2018-03-31 13F EXXON MOBIL COM 30231G102 227,971 -8,849 17,009
2018-02-05 2017-12-31 13F EXXON MOBIL COM 30231G102 236,820 465 0.20 19,808 2.23 2.1145
2017-11-03 2017-09-30 13F EXXON MOBIL COM 30231G102 236,355 4,006 1.72 19,376 3.29 2.1753
2017-07-27 2017-06-30 13F EXXON MOBIL COM 30231G102 232,349 -997 -0.43 18,758 -1.98 2.2165
2017-04-28 2017-03-31 13F EXXON MOBIL COM 30231G102 233,346 -2,183 -0.93 19,137 -9.98 2.3637
2017-02-02 2016-12-31 13F EXXON MOBIL COM 30231G102 235,529 -3,750 -1.57 21,259 1.80 2.7552
2016-10-24 2016-09-30 13F EXXON MOBIL COM 30231G102 239,279 -607 -0.25 20,884 -7.13 2.7436
2016-07-28 2016-06-30 13F EXXON MOBIL COM 30231G102 239,886 16 0.01 22,487 12.15 3.1478
2016-05-06 2016-03-31 13F EXXON MOBIL COM 30231G102 239,870 238 0.10 20,051 7.35 2.9018
2016-02-03 2015-12-31 13F EXXON MOBIL COM 30231G102 239,632 -2,790 -1.15 18,679 3.63 2.8394
2015-11-02 2015-09-30 13F EXXON MOBIL COM 30231G102 242,422 2,281 0.95 18,024 -9.79 3.0228
2015-08-03 2015-06-30 13F EXXON MOBIL COM 30231G102 240,141 -2,157 -0.89 19,980 -2.99 3.0564
2015-05-15 2015-03-31 13F EXXON MOBIL COM 30231G102 242,298 -2,492 -1.02 20,595 -9.00 3.1484
2015-02-05 2014-12-31 13F EXXON MOBIL COM 30231G102 244,790 223 0.09 22,631 -1.61 3.4981
2014-11-10 2014-09-30 13F EXXON MOBIL COM 30231G102 244,567 288 0.12 23,002 -6.47 3.6142
2014-08-14 2014-06-30 13F EXXON MOBIL COM 30231G102 244,279 -3,176 -1.28 24,594 1.75 3.7104
2014-05-06 2014-03-31 13F EXXON MOBIL COM 30231G102 247,455 9,893 4.16 24,171 0.54 3.7942
2014-02-06 2013-12-31 13F EXXON MOBIL COM 30231G102 237,562 -51 -0.02 24,041 17.59 3.9061
2013-11-04 2013-09-30 13F EXXON MOBIL COM 30231G102 237,613 3,591 1.53 20,444 -3.31 3.6457
2013-08-01 2013-06-30 13F EXXON MOBIL COM 30231G102 234,022 234,022 21,144 4.0049
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.