Kosmos Energy Ltd.
GB ˙ BATS-CHIXE ˙ US5006881065
SecurityGB:KOSL / Kosmos Energy Ltd.
InstitutionHighTower Advisors, LLC
Latest Disclosed Ownership11,418 shares
Latest Disclosed Value $ 31,742
HighTower Advisors, LLC reports 17.26% decrease in ownership of KOSL / Kosmos Energy Ltd.

On May 5, 2026 - HighTower Advisors, LLC filed a 13F-HR form disclosing ownership of 11,418 shares of Kosmos Energy Ltd. (GB:KOSL) valued at $31,742 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 13,800 shares of Kosmos Energy Ltd.. This represents a change in shares of -17.26% during the quarter.

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)
2026-05-05 2026-03-31 13F KOSMOS ENERGY COM 500688106 11,418 -2,382 -17.26 32 158.33 0.0000
2026-02-06 2025-12-31 13F KOSMOS ENERGY COM 500688106 13,800 -1,483 -9.70 13 -52.00 0.0000
2025-11-07 2025-09-30 13F KOSMOS ENERGY COM 500688106 15,283 -286 -1.84 25 -3.85 0.0000
2025-08-11 2025-06-30 13F KOSMOS ENERGY COM 500688106 15,569 -1,808 -10.40 27 -33.33 0.0000
2025-05-13 2025-03-31 13F KOSMOS ENERGY COM 500688106 17,377 2,008 13.07 40 -25.00 0.0001
2025-02-07 2024-12-31 13F KOSMOS ENERGY COM 500688106 15,369 -1,798 -10.47 53 -24.64 0.0001
2024-11-14 2024-09-30 13F KOSMOS ENERGY COM 500688106 17,167 -2,951 -14.67 69 -37.84 0.0001
2024-08-13 2024-06-30 13F KOSMOS ENERGY COM 500688106 20,118 4,755 30.95 111 20.65 0.0002
2024-05-06 2024-03-31 13F KOSMOS ENERGY COM 500688106 15,363 4,546 42.03 92 26.03 0.0001
2024-02-12 2023-12-31 13F KOSMOS ENERGY COM 500688106 10,817 800 7.99 73 -10.98 0.0001
2023-11-08 2023-09-30 13F KOSMOS ENERGY COM 500688106 10,017 -82,600 -89.18 82 -85.23 0.0002
2023-08-14 2023-06-30 13F KOSMOS ENERGY COM 500688106 92,617 17 0.02 555 -19.45 0.0011
2023-05-12 2023-03-31 13F KOSMOS ENERGY COM 500688106 92,600 -3,000 -3.14 689 13.32 0.0015
2023-02-09 2022-12-31 13F KOSMOS ENERGY COM 500688106 95,600 0 0.00 608 23.08 0.0014
2022-11-09 2022-09-30 13F KOSMOS ENERGY COM 500688106 95,600 -2,200 -2.25 494 -18.48 0.0013
2022-08-10 2022-06-30 13F KOSMOS ENERGY COM 500688106 97,800 97,800 606 0.0016
2022-05-11 2022-03-31 13F KOSMOS ENERGY COM 500688106 0 -299,149 -100.00 0 -100.00
2022-02-10 2021-12-31 13F KOSMOS ENERGY COM 500688106 299,149 299,149 1,036 0.0023
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.