Kosmos Energy Ltd.
US ˙ NYSE ˙ US5006881065

SecurityKOS / Kosmos Energy Ltd.
InstitutionVirtu Financial LLC
Latest Disclosed Ownership93,169 shares
Latest Disclosed Value $ 259
Virtu Financial LLC ownership in KOS / Kosmos Energy Ltd.

On May 14, 2026 - Virtu Financial LLC filed a 13F-HR form disclosing ownership of 93,169 shares of Kosmos Energy Ltd. (US:KOS) valued at $259,010 USD as of March 31, 2026. The entity filed a previous 13F-HR on August 12, 2025 disclosing 0 shares of Kosmos Energy Ltd.. The current value of the position is $278,575 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)
2026-05-14 2026-03-31 13F KOSMOS ENERGY COM 500688106 93,169 93,169 0 0.0107
2025-08-12 2025-06-30 13F KOSMOS ENERGY COM 500688106 0 -101,706 -100.00 0 0.0000
2025-05-12 2025-03-31 13F KOSMOS ENERGY COM 500688106 101,706 101,706 0 0.0126
2023-02-15 2022-12-31 13F KOSMOS ENERGY COM 500688106 0 -24,169 -100.00 0 -100.00
2022-11-07 2022-09-30 13F KOSMOS ENERGY COM 500688106 24,169 24,169 125 0.0115
2022-08-09 2022-06-30 13F KOSMOS ENERGY COM 500688106 0 -113,259 -100.00 0 -100.00
2022-05-17 2022-03-31 13F KOSMOS ENERGY COM 500688106 113,259 113,259 814 0.0603
2021-11-12 2021-09-30 13F KOSMOS ENERGY COM 500688106 0 -130,023 -100.00 0 -100.00
2021-09-17 2021-06-30 13F KOSMOS ENERGY COM 500688106 130,023 130,023 450 0.0437
2020-02-04 2019-12-31 13F KOSMOS ENERGY COM 500688106 0 -18,113 -100.00 0 -100.00
2019-11-20 2019-09-30 13F KOSMOS ENERGY COM 500688106 18,113 -51,049 -73.81 113 -73.96 0.0088
2019-08-13 2019-06-30 13F KOSMOS ENERGY COM 500688106 69,162 48,852 240.53 434 241.73 0.0254
2019-04-12 2019-03-31 13F KOSMOS ENERGY COM 500688106 20,310 20,310 127 0.0072
2019-01-16 2018-12-31 13F KOSMOS ENERGY SHS G5315B107 0 -14,867 -100.00 0 -100.00
2018-11-13 2018-09-30 13F/A-1 KOSMOS ENERGY SHS G5315B107 14,867 -7,644 -33.96 139 -25.27 0.0085
2018-11-13 2018-09-30 13F KOSMOS ENERGY SHS G5315B107 14,867 -7,644 139
2018-07-30 2018-06-30 13F/A-1 KOSMOS ENERGY SHS G5315B107 22,511 22,511 186 0.0112
2018-05-14 2018-03-31 13F KOSMOS ENERGY SHS G5315B107 0 -29,773 -100.00 0 -100.00
2018-02-09 2017-12-31 13F KOSMOS ENERGY SHS G5315B107 29,773 29,773 204 0.0108
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.