Kosmos Energy Ltd.
MX ˙ BMV ˙ US5006881065
SecurityMX:KOS / Kosmos Energy Ltd.
InstitutionGraham Capital Management, L.P.
Latest Disclosed Ownership62,305 shares
Latest Disclosed Value $ 173,208
Graham Capital Management, L.P. ownership in KOS / Kosmos Energy Ltd.

On May 15, 2026 - Graham Capital Management, L.P. filed a 13F-HR form disclosing ownership of 62,305 shares of Kosmos Energy Ltd. (MX:KOS) valued at $173,208 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 710,185 shares of Kosmos Energy Ltd.. This represents a change in shares of -91.23% during the quarter.

Graham Capital Management, L.P. has a history of taking positions in derivatives of the underlying security (KOS) in the form of stock options.

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.

Upgrade to unlock premium data and export to Excel .

Institutional Put/Call Ratios
(Premium Subscription Required)

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: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)
2026-05-15 2026-03-31 13F KOSMOS ENERGY COM 500688106 62,305 -647,880 -91.23 173 -73.14 0.0042
2026-02-17 2025-12-31 13F KOSMOS ENERGY COM 500688106 710,185 616,460 657.73 644 315.48 0.0154
2025-11-14 2025-09-30 13F KOSMOS ENERGY COM 500688106 93,725 70,277 299.71 156 287.50 0.0025
2025-08-14 2025-06-30 13F KOSMOS ENERGY COM 500688106 23,448 23,448 40 0.0006
2025-02-14 2024-12-31 13F KOSMOS ENERGY COM 500688106 0 -21,283 -100.00 0 -100.00
2024-11-14 2024-09-30 13F KOSMOS ENERGY COM 500688106 21,283 21,283 86 0.0015
2023-11-22 2023-09-30 13F KOSMOS ENERGY COM 500688106 0 -42,652 -100.00 0 -100.00
2023-08-14 2023-06-30 13F KOSMOS ENERGY COM 500688106 42,652 42,652 255 0.0074
2023-02-14 2022-12-31 13F KOSMOS ENERGY COM 500688106 0 -238,376 -100.00 0 -100.00
2022-11-14 2022-09-30 13F KOSMOS ENERGY COM 500688106 238,376 148,191 164.32 1,232 120.79 0.0487
2022-08-15 2022-06-30 13F KOSMOS ENERGY COM 500688106 90,185 57,972 179.96 558 141.56 0.0226
2022-05-16 2022-03-31 13F KOSMOS ENERGY CO 500688106 32,213 32,213 231 0.0080
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
(%)
2015-08-14 2015-06-30 13F KOSMOS ENERGY SHS Put 0 -100.00 0 -100.00 n/a n/a n/a
2015-02-18 2014-12-31 13F KOSMOS ENERGY SHS Put 563,500 56.53 4,727 31.82 n/a n/a n/a
2014-11-14 2014-09-30 13F KOSMOS ENERGY SHS Put 360,000 3,586 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.