埃克森美孚公司
MX ˙ BMV ˙ US30231G1022
SecurityMX:XOM / Exxon Mobil Corporation
InstitutionFlagship Harbor Advisors, Llc
Latest Disclosed Ownership52,446 shares
Latest Disclosed Value $ 8,898,040
Flagship Harbor Advisors, Llc ownership in XOM / Exxon Mobil Corporation

On April 28, 2026 - Flagship Harbor Advisors, Llc filed a 13F-HR form disclosing ownership of 52,446 shares of Exxon Mobil Corporation (MX:XOM) valued at $8,898,040 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 21, 2026 disclosing 50,971 shares of Exxon Mobil Corporation. This represents a change in shares of 2.89% during the quarter.

Flagship Harbor Advisors, Llc has a history of taking positions in derivatives of the underlying security (XOM) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:XOM / Exxon Mobil Corporation Historical Put/Call Ratio
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)
2026-04-28 2026-03-31 13F EXXON MOBIL COM 30231G102 52,446 1,475 2.89 8,898 45.08 0.3913
2026-01-21 2025-12-31 13F EXXON MOBIL Common Stock 30231G102 50,971 -1,682 -3.19 6,134 3.32 0.2895
2025-11-05 2025-09-30 13F EXXON MOBIL COM 30231G102 52,653 6,469 14.01 5,937 19.24 0.2583
2025-08-04 2025-06-30 13F EXXON MOBIL COM 30231G102 46,184 727 1.60 4,979 -7.92 0.2358
2025-04-22 2025-03-31 13F EXXON MOBIL COM 30231G102 45,457 739 1.65 5,406 12.39 0.2843
2025-01-21 2024-12-31 13F EXXON MOBIL COM 30231G102 44,718 -1,278 -2.78 4,810 -10.78 0.2526
2024-10-21 2024-09-30 13F EXXON MOBIL COM 30231G102 45,996 198 0.43 5,392 2.26 0.2961
2025-12-02 2024-06-30 13F EXXON MOBIL COM 30231G102 45,798 3,140 7.36 5,272 6.33 0.3169
2024-04-16 2024-03-31 13F EXXON MOBIL COM 30231G102 42,658 5,702 15.43 4,959 34.22 0.3186
2024-01-10 2023-12-31 13F EXXON MOBIL COM 30231G102 36,956 -1,519 -3.95 3,695 -18.33 0.2687
2023-10-17 2023-09-30 13F EXXON MOBIL COM 30231G102 38,475 1,049 2.80 4,524 12.71 0.3763
2023-07-11 2023-06-30 13F EXXON MOBIL COM 30231G102 37,426 2,176 6.17 4,014 3.83 0.3315
2023-04-12 2023-03-31 13F EXXON MOBIL COM 30231G102 35,250 450 1.29 3,865 0.70 0.3641
2023-01-13 2022-12-31 13F EXXON MOBIL COM 30231G102 34,800 1,520 4.57 3,838 32.07 0.3935
2022-10-13 2022-09-30 13F EXXON MOBIL COM 30231G102 33,280 4,383 15.17 2,906 17.41 0.3370
2022-07-13 2022-06-30 13F EXXON MOBIL COM 30231G102 28,897 973 3.48 2,475 7.33 0.2780
2022-04-13 2022-03-31 13F EXXON MOBIL COM 30231G102 27,924 480 1.75 2,306 37.34 0.2222
2022-02-17 2021-12-31 13F/A-1 EXXON MOBIL COM 30231G102 27,444 -2,420 -8.10 1,679 -10.88 0.1589
2022-02-10 2021-12-31 13F EXXON MOBIL COM 30231G102 27,444 -2,420 1,679 0.1589
2021-11-01 2021-09-30 13F EXXON MOBIL COM 30231G102 29,864 0 0.00 1,884 0.00 0.2024
2021-07-26 2021-06-30 13F EXXON MOBIL COM 30231G102 29,864 -1,793 -5.66 1,884 6.62 0.2021
2021-05-03 2021-03-31 13F EXXON MOBIL COM 30231G102 31,657 7,153 29.19 1,767 74.95 0.2006
2021-02-08 2020-12-31 13F EXXON MOBIL COM 30231G102 24,504 62 0.25 1,010 20.38 0.1252
2020-10-13 2020-09-30 13F EXXON MOBIL Common Stock 30231G102 24,442 -12,475 -33.79 839 -49.15 0.1133
2020-07-31 2020-06-30 13F EXXON MOBIL Common Stock 30231G102 36,917 4,380 13.46 1,650 33.60 0.2422
2020-05-12 2020-03-31 13F EXXON MOBIL Common Stock 30231G102 32,537 -6,488 -16.63 1,235 -54.65 0.2470
2020-02-14 2019-12-31 13F EXXON MOBIL Common Stock 30231G102 39,025 3,879 11.04 2,723 9.75 0.4768
2019-10-22 2019-09-30 13F EXXON MOBIL Common Stock 30231G102 35,146 -448 -1.26 2,481 -9.02 0.4862
2019-07-22 2019-06-30 13F EXXON MOBIL Common Stock 30231G102 35,594 -6,619 -15.68 2,727 -20.03 0.5659
2019-04-15 2019-03-31 13F EXXON MOBIL Common Stock 30231G102 42,213 4,015 10.51 3,410 30.95 0.7004
2019-01-26 2018-12-31 13F EXXON MOBIL COM 30231G102 38,198 -7,480 -16.38 2,604 -33.57 0.6328
2018-11-05 2018-09-30 13F EXXON MOBIL Common Stock 30231G102 45,678 -751 -1.62 3,920 2.06 0.7269
2018-08-14 2018-06-30 13F EXXON MOBIL Common Stock 30231G102 46,429 5,659 13.88 3,841 28.55 0.7688
2018-04-23 2018-03-31 13F EXXON MOBIL COM 30231G102 40,770 3,126 8.30 2,988 -8.90 0.8883
2018-01-24 2017-12-31 13F EXXON MOBIL COM 30231G102 37,644 4,178 12.48 3,280 19.62 0.9428
2017-10-23 2017-09-30 13F EXXON MOBIL COM 30231G102 33,466 1,490 4.66 2,742 6.98 0.8896
2017-08-09 2017-06-30 13F EXXON MOBIL COM 30231G102 31,976 680 2.17 2,563 -0.66 0.8899
2017-05-16 2017-03-31 13F EXXON MOBIL COM 30231G102 31,296 4,945 18.77 2,580 13.76 0.9856
2017-05-15 2016-12-31 13F EXXON MOBIL COM 30231G102 26,351 26,351 2,268 0.9787
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2020-02-14 2019-12-31 13F EXXON MOBIL Listed Options Call 0 -100.00 0 -100.00 n/a n/a n/a
2019-10-22 2019-09-30 13F EXXON MOBIL Listed Options Call 5 1 n/a n/a n/a
2019-04-15 2019-03-31 13F EXXON MOBIL Listed Options Call 0 -100.00 0 n/a n/a n/a
2019-01-26 2018-12-31 13F EXXON MOBIL Listed Options Call 7 0 n/a n/a n/a
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.