Exxon Mobil Corporation
US ˙ NYSE ˙ US30231G1022

SecurityXOM / Exxon Mobil Corporation
InstitutionFactory Mutual Insurance Co
Latest Disclosed Ownership680,654 shares
Latest Disclosed Value $ 115,479,758
Factory Mutual Insurance Co reports 2.66% increase in ownership of XOM / Exxon Mobil Corporation

On May 5, 2026 - Factory Mutual Insurance Co filed a 13F-HR form disclosing ownership of 680,654 shares of Exxon Mobil Corporation (US:XOM) valued at $115,479,758 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 663,004 shares of Exxon Mobil Corporation. This represents a change in shares of 2.66% during the quarter. The current value of the position is $102,043,648 USD.

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)
2026-05-05 2026-03-31 13F EXXON MOBIL COM 30231G102 680,654 17,650 2.66 115,480 44.74 1.2992
2026-01-23 2025-12-31 13F EXXON MOBIL COM 30231G102 663,004 -17,650 -2.59 79,786 3.96 0.8089
2025-11-10 2025-09-30 13F EXXON MOBIL COM 30231G102 680,654 -3,000 -0.44 76,744 4.13 0.7474
2025-08-07 2025-06-30 13F EXXON MOBIL COM 30231G102 683,654 0 0.00 73,698 -9.36 0.8055
2025-04-17 2025-03-31 13F EXXON MOBIL COM 30231G102 683,654 0 0.00 81,307 10.56 0.9432
2025-01-24 2024-12-31 13F EXXON MOBIL COM 30231G102 683,654 0 0.00 73,541 -8.23 0.7952
2024-10-10 2024-09-30 13F EXXON MOBIL COM 30231G102 683,654 -7,700 -1.11 80,138 0.69 0.8288
2024-07-23 2024-06-30 13F EXXON MOBIL COM 30231G102 691,354 249,134 56.34 79,589 54.83 0.9067
2024-04-12 2024-03-31 13F EXXON MOBIL COM 30231G102 442,220 -14,400 -3.15 51,404 12.60 0.5905
2024-01-23 2023-12-31 13F EXXON MOBIL COM 30231G102 456,620 0 0.00 45,653 -14.97 0.5670
2023-11-07 2023-09-30 13F EXXON MOBIL COM 30231G102 456,620 0 0.00 53,689 9.63 0.7489
2023-07-27 2023-06-30 13F EXXON MOBIL COM 30231G102 456,620 0 0.00 48,972 -2.20 0.7224
2023-05-08 2023-03-31 13F EXXON MOBIL COM 30231G102 456,620 -22,500 -4.70 50,073 -5.25 0.7826
2023-02-02 2022-12-31 13F EXXON MOBIL COM 30231G102 479,120 0 0.00 52,847 26.33 0.7992
2022-11-04 2022-09-30 13F EXXON MOBIL COM 30231G102 479,120 -7,700 -1.58 41,831 0.34 0.6868
2022-08-08 2022-06-30 13F EXXON MOBIL COM 30231G102 486,820 -19,500 -3.85 41,691 -0.30 0.6835
2022-05-13 2022-03-31 13F EXXON MOBIL COM 30231G102 506,320 -19,300 -3.67 41,818 12.77 0.5655
2022-02-10 2021-12-31 13F EXXON MOBIL COM 30231G102 525,620 -140,347 -21.07 37,082 -5.34 0.5354
2021-11-12 2021-09-30 13F EXXON MOBIL COM 30231G102 665,967 -11,900 -1.76 39,172 -8.39 0.4893
2021-07-14 2021-06-30 13F EXXON MOBIL COM 30231G102 677,867 -29,442 -4.16 42,760 8.29 0.5230
2021-05-10 2021-03-31 13F EXXON MOBIL COM 30231G102 707,309 -139,090 -16.43 39,488 13.19 0.5052
2021-02-17 2020-12-31 13F EXXON MOBIL COM 30231G102 846,399 -207,600 -19.70 34,888 -3.58 0.4716
2020-10-19 2020-09-30 13F EXXON MOBIL COM 30231G102 1,053,999 0 0.00 36,183 -23.24 0.5856
2020-07-13 2020-06-30 13F EXXON MOBIL COM 30231G102 1,053,999 -175,700 -14.29 47,136 0.95 0.8083
2020-04-16 2020-03-31 13F EXXON MOBIL COM 30231G102 1,229,699 -270,100 -18.01 46,691 -55.39 0.8867
2020-01-28 2019-12-31 13F EXXON MOBIL COM 30231G102 1,499,799 -7,700 -0.51 104,655 -1.68 1.5431
2019-10-22 2019-09-30 13F EXXON MOBIL COM 30231G102 1,507,499 4,300 0.29 106,445 -7.59 1.6456
2019-07-16 2019-06-30 13F EXXON MOBIL COM 30231G102 1,503,199 -140,006 -8.52 115,190 -14.77 1.3772
2019-04-09 2019-03-31 13F EXXON MOBIL COM 30231G102 1,643,205 -87,500 -5.06 135,154 14.52 1.5960
2019-01-14 2018-12-31 13F EXXON MOBIL COM 30231G102 1,730,705 -1 -0.00 118,017 -19.80 1.5143
2018-10-10 2018-09-30 13F EXXON MOBIL COM 30231G102 1,730,706 55,800 3.33 147,145 6.19 1.5274
2018-07-19 2018-06-30 13F EXXON MOBIL COM 30231G102 1,674,906 29,000 1.76 138,566 12.84 1.4868
2018-04-05 2018-03-31 13F EXXON MOBIL COM 30231G102 1,645,906 0 0.00 122,800 -10.80 1.3449
2018-01-16 2017-12-31 13F EXXON MOBIL COM 30231G102 1,645,906 0 0.00 137,664 2.02 1.4401
2017-10-11 2017-09-30 13F EXXON MOBIL COM 30231G102 1,645,906 13,027 0.80 134,932 2.36 1.4793
2017-07-10 2017-06-30 13F EXXON MOBIL COM 30231G102 1,632,879 0 0.00 131,823 -1.56 1.5247
2017-04-21 2017-03-31 13F EXXON MOBIL COM 30231G102 1,632,879 -27,500 -1.66 133,913 -10.77 1.5861
2017-01-19 2016-12-31 13F EXXON MOBIL COM 30231G102 1,660,379 0 0.00 150,082 3.56 1.7810
2016-10-26 2016-09-30 13F EXXON MOBIL COM 30231G102 1,660,379 0 0.00 144,918 -6.89 1.7921
2016-07-12 2016-06-30 13F EXXON MOBIL COM 30231G102 1,660,379 0 0.00 155,644 12.14 2.0505
2016-04-27 2016-03-31 13F EXXON MOBIL COM 30231G102 1,660,379 0 0.00 138,791 7.23 1.7960
2016-01-14 2015-12-31 13F EXXON MOBIL COM 30231G102 1,660,379 -40,000 -2.35 129,427 2.38 1.7410
2015-10-14 2015-09-30 13F EXXON MOBIL COM 30231G102 1,700,379 -15,000 -0.87 126,423 -11.42 1.7294
2015-07-21 2015-06-30 13F EXXON MOBIL COM 30231G102 1,715,379 0 0.00 142,720 -2.12 1.8641
2015-04-13 2015-03-31 13F EXXON MOBIL COM 30231G102 1,715,379 15,000 0.88 145,806 -7.25 1.9210
2015-01-12 2014-12-31 13F EXXON MOBIL COM 30231G102 1,700,379 38,000 2.29 157,200 0.55 2.1185
2014-11-04 2014-09-30 13F EXXON MOBIL COM 30231G102 1,662,379 -84,100 -4.82 156,347 -11.08 2.1623
2014-08-12 2014-06-30 13F EXXON MOBIL COM 30231G102 1,746,479 -32,000 -1.80 175,836 1.22 2.4043
2014-05-15 2014-03-31 13F EXXON MOBIL COM 30231G102 1,778,479 -75,000 -4.05 173,722 -7.38 2.5148
2014-02-04 2013-12-31 13F EXXON MOBIL COM 30231G102 1,853,479 -30,000 -1.59 187,572 15.75 2.7586
2013-10-16 2013-09-30 13F EXXON MOBIL COM 30231G102 1,883,479 -149,293 -7.34 162,055 -11.76 2.5700
2013-07-25 2013-06-30 13F EXXON MOBIL COM 30231G102 2,032,772 2,032,772 183,661 3.0100
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.