Kosmos Energy Ltd.
US ˙ NYSE ˙ US5006881065

SecurityKOS / Kosmos Energy Ltd.
InstitutionWolverine Trading, Llc
Latest Disclosed Ownership379,551 shares
Latest Disclosed Value $ 633,850
Wolverine Trading, Llc ownership in KOS / Kosmos Energy Ltd.

On November 14, 2025 - Wolverine Trading, Llc filed a 13F-HR form disclosing ownership of 379,551 shares of Kosmos Energy Ltd. (US:KOS) valued at $630,055 USD as of September 30, 2025. The entity filed a previous 13F-HR on August 18, 2025 disclosing 258,278 shares of Kosmos Energy Ltd.. This represents a change in shares of 46.95% during the quarter. The current value of the position is $1,134,857 USD.

Wolverine Trading, Llc has a history of taking positions in derivatives of the underlying security (KOS) in the form of stock options. The firm currently holds call options representing 88,600 of underlying shares valued at $147,962 USD and put options representing 465,800 of underlying shares valued at $777,886 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.

KOS / Kosmos Energy Ltd. 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)
2025-11-14 2025-09-30 13F KOSMOS ENERGY COM 500688106 379,551 121,273 46.95 634 34.11 0.0005
2025-08-18 2025-06-30 13F KOSMOS ENERGY COM 500688106 258,278 215,903 509.51 473 402.13 0.0005
2025-05-15 2025-03-31 13F KOSMOS ENERGY COM 500688106 42,375 3,872 10.06 94 -27.13 0.0001
2025-02-14 2024-12-31 13F KOSMOS ENERGY COM 500688106 38,503 -117,313 -75.29 129 -79.09 0.0001
2024-11-14 2024-09-30 13F KOSMOS ENERGY COM 500688106 155,816 136,796 719.22 617 487.62 0.0007
2024-08-14 2024-06-30 13F KOSMOS ENERGY COM 500688106 19,020 19,020 105 0.0001
2023-11-15 2023-09-30 13F KOSMOS ENERGY COM 500688106 0 -42,674 -100.00 0 -100.00
2023-08-23 2023-06-30 13F KOSMOS ENERGY COM 500688106 42,674 26,083 157.21 246 0.0003
2023-05-15 2023-03-31 13F KOSMOS ENERGY COM 500688106 16,591 -11,557 -41.06 0 -100.00 0.0002
2023-02-14 2022-12-31 13F KOSMOS ENERGY COM 500688106 28,148 12,136 75.79 179 108.14 0.0003
2022-11-14 2022-09-30 13F KOSMOS ENERGY COM 500688106 16,012 16,012 86 0.0001
2022-08-15 2022-06-30 13F KOSMOS ENERGY COM 500688106 0 -12,556 -100.00 0 -100.00
2022-05-16 2022-03-31 13F KOSMOS ENERGY COM 500688106 12,556 12,556 87 0.0001
2022-02-14 2021-12-31 13F KOSMOS ENERGY COM 500688106 0 -14,758 -100.00 0 -100.00
2021-11-12 2021-09-30 13F KOSMOS ENERGY COM 500688106 14,758 4,704 46.79 43 26.47 0.0000
2021-08-06 2021-06-30 13F KOSMOS ENERGY COM 500688106 10,054 10,054 34 0.0001
2020-05-11 2020-03-31 13F KOSMOS ENERGY COM 500688106 0 -10,756 -100.00 0 -100.00
2020-02-12 2019-12-31 13F KOSMOS ENERGY COM 500688106 10,756 10,756 60 0.0001
2019-11-14 2019-09-30 13F KOSMOS ENERGY COM 500688106 0 -11,971 -100.00 0 -100.00
2019-08-20 2019-06-30 13F KOSMOS ENERGY COM 500688106 11,971 -7,766 -39.35 75 -39.02 0.0002
2019-05-15 2019-03-31 13F KOSMOS ENERGY COM 500688106 19,737 19,737 123 0.0004
2016-11-14 2016-09-30 13F KOSMOS ENERGY SHS G5315B107 0 -7,991 -100.00 0 -100.00
2016-08-15 2016-06-30 13F KOSMOS ENERGY SHS G5315B107 7,991 7,991 43 0.0002
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
(%)
2025-11-14 2025-09-30 13F KOSMOS ENERGY COM Call 88,600 49.66 148 36.11 n/a n/a n/a
2025-08-18 2025-06-30 13F KOSMOS ENERGY COM Call 59,200 -64.66 108 -70.89 n/a n/a n/a
2025-05-15 2025-03-31 13F KOSMOS ENERGY COM Call 167,500 217.84 372 109.60 n/a n/a n/a
2025-02-14 2024-12-31 13F KOSMOS ENERGY COM Call 52,700 86.88 177 59.46 n/a n/a n/a
2024-11-14 2024-09-30 13F KOSMOS ENERGY COM Call 28,200 156.36 112 85.00 n/a n/a n/a
2024-08-14 2024-06-30 13F KOSMOS ENERGY COM Call 11,000 -24.14 61 -30.23 n/a n/a n/a
2024-05-15 2024-03-31 13F KOSMOS ENERGY COM Call 14,500 -47.46 86 -53.51 n/a n/a n/a
2024-02-14 2023-12-31 13F KOSMOS ENERGY COM Call 27,600 -70.76 185 -76.04 n/a n/a n/a
2023-11-15 2023-09-30 13F KOSMOS ENERGY COM Call 94,400 45.90 772 106.97 n/a n/a n/a
2023-08-23 2023-06-30 13F KOSMOS ENERGY COM Call 64,700 15.74 373 n/a n/a n/a
2023-05-15 2023-03-31 13F KOSMOS ENERGY COM Call 55,900 11.13 0 -100.00 n/a n/a n/a
2023-02-14 2022-12-31 13F KOSMOS ENERGY COM Call 50,300 -62.29 320 -55.18 n/a n/a n/a
2022-11-14 2022-09-30 13F KOSMOS ENERGY COM Call 133,400 714 n/a n/a n/a
2022-08-15 2022-06-30 13F KOSMOS ENERGY COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2022-05-16 2022-03-31 13F KOSMOS ENERGY COM Call 58,000 -80.69 400 -61.61 n/a n/a n/a
2022-02-14 2021-12-31 13F KOSMOS ENERGY COM Call 300,400 155.44 1,042 205.57 n/a n/a n/a
2021-11-12 2021-09-30 13F KOSMOS ENERGY COM Call 117,600 639.62 341 531.48 n/a n/a n/a
2021-08-06 2021-06-30 13F KOSMOS ENERGY COM Call 15,900 -50.00 54 -44.33 n/a n/a n/a
2021-05-14 2021-03-31 13F KOSMOS ENERGY COM Call 31,800 100.00 97 79.63 n/a n/a n/a
2021-02-12 2020-12-31 13F KOSMOS ENERGY COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2020-11-13 2020-09-30 13F KOSMOS ENERGY COM Call 12,500 10.62 12 -36.84 n/a n/a n/a
2020-08-13 2020-06-30 13F KOSMOS ENERGY COM Call 11,300 -9.60 19 58.33 n/a n/a n/a
2017-05-15 2017-03-31 13F KOSMOS ENERGY SHS Call 0 -100.00 0 -100.00 n/a n/a n/a
2017-02-14 2016-12-31 13F KOSMOS ENERGY SHS Call 12,400 7.83 87 19.18 n/a n/a n/a
2016-11-14 2016-09-30 13F KOSMOS ENERGY SHS Call 11,500 30,981.08 73 284.21 n/a n/a n/a
2016-08-15 2016-06-30 13F KOSMOS ENERGY SHS Call 37 20 n/a n/a n/a
Disclosed Put 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
(%)
2025-11-14 2025-09-30 13F KOSMOS ENERGY COM Put 465,800 7.35 778 -2.14 n/a n/a n/a
2025-08-18 2025-06-30 13F KOSMOS ENERGY COM Put 433,900 1.52 794 -16.24 n/a n/a n/a
2025-05-15 2025-03-31 13F KOSMOS ENERGY COM Put 427,400 2,114.51 949 1,381.25 n/a n/a n/a
2025-02-14 2024-12-31 13F KOSMOS ENERGY COM Put 19,300 -91.97 65 -93.27 n/a n/a n/a
2024-11-14 2024-09-30 13F KOSMOS ENERGY COM Put 240,200 1,791.34 951 1,258.57 n/a n/a n/a
2024-08-14 2024-06-30 13F KOSMOS ENERGY COM Put 12,700 -18.06 70 -23.91 n/a n/a n/a
2024-05-15 2024-03-31 13F KOSMOS ENERGY COM Put 15,500 92 n/a n/a n/a
2024-02-14 2023-12-31 13F KOSMOS ENERGY COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2023-11-15 2023-09-30 13F KOSMOS ENERGY COM Put 16,200 -63.76 133 -48.64 n/a n/a n/a
2023-08-23 2023-06-30 13F KOSMOS ENERGY COM Put 44,700 3.23 258 n/a n/a n/a
2023-05-15 2023-03-31 13F KOSMOS ENERGY COM Put 43,300 -15.26 0 -100.00 n/a n/a n/a
2023-02-14 2022-12-31 13F KOSMOS ENERGY COM Put 51,100 -61.58 325 -54.35 n/a n/a n/a
2022-11-14 2022-09-30 13F KOSMOS ENERGY COM Put 133,000 712 n/a n/a n/a
2022-08-15 2022-06-30 13F KOSMOS ENERGY COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2022-05-16 2022-03-31 13F KOSMOS ENERGY COM Put 25,500 68.87 176 238.46 n/a n/a n/a
2022-02-14 2021-12-31 13F KOSMOS ENERGY COM Put 15,100 -58.29 52 -50.48 n/a n/a n/a
2021-11-12 2021-09-30 13F KOSMOS ENERGY COM Put 36,200 -21.65 105 -33.12 n/a n/a n/a
2021-08-06 2021-06-30 13F KOSMOS ENERGY COM Put 46,200 2.44 157 13.77 n/a n/a n/a
2021-05-14 2021-03-31 13F KOSMOS ENERGY COM Put 45,100 -2.38 138 -12.10 n/a n/a n/a
2019-11-14 2019-09-30 13F KOSMOS ENERGY COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2019-08-20 2019-06-30 13F KOSMOS ENERGY COM Put 17,400 22.54 109 23.86 n/a n/a n/a
2019-05-15 2019-03-31 13F KOSMOS ENERGY COM Put 14,200 -18.39 88 -19.27 n/a n/a n/a
2019-02-13 2018-12-31 13F KOSMOS ENERGY SHS Put 0 -100.00 0 -100.00 n/a n/a n/a
2018-11-14 2018-09-30 13F KOSMOS ENERGY SHS Put 75,500 706 n/a n/a n/a
2016-11-14 2016-09-30 13F KOSMOS ENERGY SHS Put 0 -100.00 0 -100.00 n/a n/a n/a
2016-08-15 2016-06-30 13F KOSMOS ENERGY SHS Put 69 37 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.