Kosmos Energy Ltd.
US ˙ NYSE ˙ US5006881065

SecurityKOS / Kosmos Energy Ltd.
InstitutionMan Group plc
Latest Disclosed Ownership430,613 shares
Latest Disclosed Value $ 1,197,104
Man Group plc reports 179.35% increase in ownership of KOS / Kosmos Energy Ltd.

On May 15, 2026 - Man Group plc filed a 13F-HR form disclosing ownership of 430,613 shares of Kosmos Energy Ltd. (US:KOS) valued at $1,197,104 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 154,146 shares of Kosmos Energy Ltd.. This represents a change in shares of 179.35% during the quarter. The current value of the position is $1,287,533 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)
2026-05-15 2026-03-31 13F KOSMOS ENERGY COM 500688106 430,613 276,467 179.35 1,197 761.15 0.0022
2026-02-17 2025-12-31 13F KOSMOS ENERGY COM 500688106 154,146 154,146 140 0.0002
2025-02-14 2024-12-31 13F KOSMOS ENERGY COM 500688106 0 -3,702,517 -100.00 0 -100.00
2024-11-14 2024-09-30 13F KOSMOS ENERGY COM 500688106 3,702,517 -129,087 -3.37 14,921 -29.71 0.0389
2024-08-14 2024-06-30 13F KOSMOS ENERGY COM 500688106 3,831,604 1,429,304 59.50 21,227 48.26 0.0536
2024-05-15 2024-03-31 13F KOSMOS ENERGY COM 500688106 2,402,300 2,366,808 6,668.57 14,318 5,915.55 0.0361
2024-02-14 2023-12-31 13F KOSMOS ENERGY COM 500688106 35,492 238 -85.27 0.0007
2023-05-15 2023-03-31 13F KOSMOS ENERGY COM 500688106 1,616 279.34 0.0057
2023-02-14 2022-12-31 13F KOSMOS ENERGY COM 500688106 67,083 -29,664 -30.66 427 -14.63 0.0015
2022-11-14 2022-09-30 13F KOSMOS ENERGY COM 500688106 96,747 499 144.61 0.0023
2022-08-15 2022-06-30 13F KOSMOS ENERGY COM 500688106 204 -32.23 0.0009
2022-05-16 2022-03-31 13F KOSMOS ENERGY COM 500688106 41,864 29,664 243.15 301 616.67 0.0010
2022-02-14 2021-12-31 13F KOSMOS ENERGY COM 500688106 12,200 0 0.00 42 16.67 0.0001
2021-11-15 2021-09-30 13F KOSMOS ENERGY COM 500688106 12,200 -3,200 -20.78 36 -32.08 0.0001
2021-08-16 2021-06-30 13F KOSMOS ENERGY COM 500688106 15,400 0 0.00 53 12.77 0.0002
2021-05-17 2021-03-31 13F KOSMOS ENERGY COM 500688106 15,400 -2,000 -11.49 47 14.63 0.0002
2021-02-16 2020-12-31 13F KOSMOS ENERGY COM 500688106 17,400 -5,200 -23.01 41 86.36 0.0002
2020-11-16 2020-09-30 13F KOSMOS ENERGY COM 500688106 22,600 -88,906 -79.73 22 -88.17 0.0001
2020-08-14 2020-06-30 13F KOSMOS ENERGY COM 500688106 111,506 0 0.00 186 86.00 0.0009
2020-05-15 2020-03-31 13F KOSMOS ENERGY COM 500688106 111,506 -788,637 -87.61 100 -98.05 0.0006
2020-02-18 2019-12-31 13F KOSMOS ENERGY COM 500688106 900,143 870,572 2,944.01 5,131 2,688.59 0.0169
2019-11-14 2019-09-30 13F KOSMOS ENERGY COM 500688106 29,571 13,271 81.42 184 80.39 0.0007
2019-08-14 2019-06-30 13F KOSMOS ENERGY COM 500688106 16,300 0 0.00 102 0.00 0.0004
2019-05-15 2019-03-31 13F KOSMOS ENERGY COM 500688106 16,300 -71,900 -81.52 102 -71.59 0.0004
2019-02-14 2018-12-31 13F KOSMOS ENERGY COM 500688106 88,200 -314,685 -78.11 359 -90.47 0.0016
2018-11-14 2018-09-30 13F KOSMOS ENERGY SHS G5315B107 402,885 -33,008 -7.57 3,768 4.52 0.0138
2018-08-14 2018-06-30 13F KOSMOS ENERGY SHS G5315B107 435,893 295,437 210.34 3,605 307.34 0.0148
2018-05-15 2018-03-31 13F KOSMOS ENERGY SHS G5315B107 140,456 140,456 885 0.0041
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.