Kosmos Energy Ltd.
US ˙ NYSE ˙ US5006881065

SecurityKOS / Kosmos Energy Ltd.
InstitutionSfmg, Llc
Latest Disclosed Ownership63,480 shares
Latest Disclosed Value $ 176,474
Sfmg, Llc reports 23.96% decrease in ownership of KOS / Kosmos Energy Ltd.

On May 12, 2026 - Sfmg, Llc filed a 13F-HR form disclosing ownership of 63,480 shares of Kosmos Energy Ltd. (US:KOS) valued at $176,474 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 83,480 shares of Kosmos Energy Ltd.. This represents a change in shares of -23.96% during the quarter. The current value of the position is $189,805 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)
2026-05-12 2026-03-31 13F KOSMOS ENERGY COM 500688106 63,480 -20,000 -23.96 176 134.67 0.0119
2026-02-10 2025-12-31 13F KOSMOS ENERGY COM 500688106 83,480 -10,000 -10.70 76 -51.61 0.0051
2025-11-13 2025-09-30 13F KOSMOS ENERGY COM 500688106 93,480 0 0.00 155 -3.12 0.0108
2025-08-12 2025-06-30 13F KOSMOS ENERGY COM 500688106 93,480 0 0.00 161 -24.88 0.0121
2025-05-09 2025-03-31 13F KOSMOS ENERGY COM 500688106 93,480 0 0.00 213 -33.23 0.0168
2025-02-11 2024-12-31 13F KOSMOS ENERGY COM 500688106 93,480 0 0.00 320 -15.16 0.0252
2024-11-25 2024-09-30 13F KOSMOS ENERGY COM 500688106 93,480 0 0.00 377 -27.27 0.0305
2024-08-14 2024-06-30 13F KOSMOS ENERGY COM 500688106 93,480 0 0.00 518 -7.18 0.0450
2024-05-07 2024-03-31 13F KOSMOS ENERGY COM 500688106 93,480 0 0.00 557 -11.16 0.0479
2024-01-30 2023-12-31 13F KOSMOS ENERGY COM 500688106 93,480 -620 -0.66 627 -18.47 0.0581
2023-11-06 2023-09-30 13F KOSMOS ENERGY COM 500688106 94,100 0 0.00 770 36.59 0.0791
2023-08-14 2023-06-30 13F KOSMOS ENERGY COM 500688106 94,100 0 0.00 564 -19.57 0.0580
2023-05-01 2023-03-31 13F KOSMOS ENERGY COM 500688106 94,100 0 0.00 700 17.06 0.0754
2023-01-25 2022-12-31 13F KOSMOS ENERGY COM 500688106 94,100 0 0.00 598 10.95 0.0664
2022-10-20 2022-09-30 13F KOSMOS ENERGY COM 500688106 94,100 0 0.00 539 -7.39 0.0629
2022-08-08 2022-06-30 13F KOSMOS ENERGY COM 500688106 94,100 0 0.00 582 -14.03 0.0675
2022-04-21 2022-03-31 13F KOSMOS ENERGY COM 500688106 94,100 -9,500 -9.17 677 89.11 0.0669
2022-01-31 2021-12-31 13F KOSMOS ENERGY COM 500688106 103,600 0 0.00 358 16.61 0.0348
2021-11-01 2021-09-30 13F KOSMOS ENERGY COM 500688106 103,600 -100 -0.10 307 -14.48 0.0341
2021-08-06 2021-06-30 13F KOSMOS ENERGY COM 500688106 103,700 100 0.10 359 12.89 0.0399
2021-05-03 2021-03-31 13F KOSMOS ENERGY COM 500688106 103,600 0 0.00 318 30.86 0.0369
2021-02-02 2020-12-31 13F KOSMOS ENERGY COM 500688106 103,600 0 0.00 243 140.59 0.0308
2020-11-12 2020-09-30 13F KOSMOS ENERGY COM 500688106 103,600 0 0.00 101 -41.28 0.0139
2020-08-03 2020-06-30 13F KOSMOS ENERGY COM 500688106 103,600 0 0.00 172 84.95 0.0245
2020-05-08 2020-03-31 13F KOSMOS ENERGY COM 500688106 103,600 92,000 793.10 93 40.91 0.0139
2020-02-05 2019-12-31 13F KOSMOS ENERGY COM 500688106 11,600 11,600 66 0.0081
2016-05-16 2016-03-31 13F KOSMOS ENERGY SHS G5315B107 0 -10,000 -100.00 0 -100.00
2016-02-08 2015-12-31 13F KOSMOS ENERGY SHS G5315B107 10,000 0 0.00 52 -7.14 0.0118
2015-11-13 2015-09-30 13F KOSMOS ENERGY SHS G5315B107 10,000 0 0.00 56 -33.33 0.0135
2015-08-12 2015-06-30 13F KOSMOS ENERGY SHS G5315B107 10,000 -4,000 -28.57 84 -24.32 0.0188
2015-05-11 2015-03-31 13F KOSMOS ENERGY SHS G5315B107 14,000 14,000 111 0.0090
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.