Kosmos Energy Ltd.
GB ˙ LSE ˙ US5006881065
218,00 GBP ↓ −12,00 (−5,22%)
2026-06-04
DELAT PRIS
SecurityGB:KOS / Kosmos Energy Ltd.
InstitutionBlackRock, Inc.
Latest Disclosed Ownership39,807,154 shares
Ownership 6.70%
BlackRock, Inc. ownership in KOS / Kosmos Energy Ltd.

2026-04-24 - BlackRock, Inc. has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 39,807,154 shares of Kosmos Energy Ltd. (GB:KOS). This represents 6.7 percent ownership of the company. In their previous filing dated 2025-04-16 , BlackRock, Inc. had reported owning 37,757,921 shares, indicating an increase of 5.43 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date
Effective
Date
Form Prev
Shares
Latest
Shares
ΔShares
(Percent)
Ownership
(Percent)
ΔOwnership
(Percent)
2026-04-24 2026-04-24 13G/A 37,757,921 39,807,154 5.43 6.70 -15.19
2025-04-16 2025-04-16 13G/A 56,660,534 37,757,921 -33.36 7.90 -34.17
2025-02-05 2025-02-05 13G/A 48,516,956 56,660,534 16.79 12.00 16.50
2024-03-07 2024-03-07 13G/A 45,633,208 48,516,956 6.32 10.30 4.04
2024-01-24 2024-01-24 13G/A 46,221,246 45,633,208 -1.27 9.90 -1.00
2023-09-07 2023-09-07 13G/A 37,478,854 46,221,246 23.33 10.00 21.95
2023-02-03 2023-02-03 13G/A 41,696,773 37,478,854 -10.12 8.20 -10.87
2022-02-03 2022-02-03 13G/A 47,641,736 41,696,773 -12.48 9.20 -22.03
2021-01-27 2021-01-27 13G/A 47,641,736 47,641,736 0.00 11.80 0.00
2021-01-27 2021-01-27 13G/A 43,487,216 47,641,736 9.55 11.80 10.28
2020-07-10 2020-07-10 13G/A 24,533,397 43,487,216 77.26 10.70 75.41
2020-02-07 2020-02-07 13G 24,533,397 6.10

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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)
2026-05-13 2026-03-31 13F KOSMOS ENERGY COM 500688106 47,463,094 610,534 1.30 131,947 210.36 0.0023
2026-02-12 2025-12-31 13F KOSMOS ENERGY COM 500688106 46,852,560 -22,057,575 -32.01 42,514 -62.83 0.0007
2025-11-12 2025-09-30 13F KOSMOS ENERGY COM 500688106 68,910,135 683,580 1.00 114,391 -2.52 0.0020
2025-08-12 2025-06-30 13F KOSMOS ENERGY COM 500688106 68,226,555 5,424,143 8.64 117,350 -18.05 0.0022
2025-05-02 2025-03-31 13F KOSMOS ENERGY COM 500688106 62,802,412 6,141,878 10.84 143,189 -26.11 0.0030
2025-02-07 2024-12-31 13F KOSMOS ENERGY COM 500688106 56,660,534 6,517,689 13.00 193,779 -4.11 0.0039
2024-11-13 2024-09-30 13F KOSMOS ENERGY COM 500688106 50,142,845 2,723,033 5.74 202,076 -23.08 0.0042
2024-08-13 2024-06-30 13F KOSMOS ENERGY COM 500688106 47,419,812 -4,616,376 -8.87 262,706 -15.29 0.0059
2024-05-10 2024-03-31 13F KOSMOS ENERGY COM 500688106 52,036,188 6,402,980 14.03 310,136 1.29 0.0072
2024-02-13 2023-12-31 13F KOSMOS ENERGY COM 500688106 45,633,208 2,173,594 5.00 306,199 -13.87 0.0078
2023-11-13 2023-09-30 13F KOSMOS ENERGY COM 500688106 43,459,614 1,544,677 3.69 355,500 41.59 0.0102
2023-08-11 2023-06-30 13F KOSMOS ENERGY COM 500688106 41,914,937 2,228,401 5.62 251,070 -14.97 0.0069
2023-05-12 2023-03-31 13F KOSMOS ENERGY COM 500688106 39,686,536 2,207,682 5.89 295,268 23.87 0.0087
2023-02-13 2022-12-31 13F KOSMOS ENERGY COM 500688106 37,478,854 4,566,645 13.88 238,366 40.09 0.0075
2022-11-14 2022-09-30 13F KOSMOS ENERGY COM 500688106 32,912,209 -922,783 -2.73 170,156 -18.76 0.0058
2022-08-12 2022-06-30 13F KOSMOS ENERGY COM 500688106 33,834,992 -4,450,747 -11.63 209,439 -23.92 0.0067
2022-05-12 2022-03-31 13F KOSMOS ENERGY COM 500688106 38,285,739 -3,411,034 -8.18 275,274 90.80 0.0074
2022-02-10 2021-12-31 13F KOSMOS ENERGY COM 500688106 41,696,773 2,345,990 5.96 144,272 23.86 0.0037
2021-11-09 2021-09-30 13F KOSMOS ENERGY COM 500688106 39,350,783 -1,219,373 -3.01 116,479 -17.02 0.0033
2021-08-11 2021-06-30 13F KOSMOS ENERGY COM 500688106 40,570,156 -4,275,544 -9.53 140,373 1.96 0.0039
2021-05-07 2021-03-31 13F KOSMOS ENERGY COM 500688106 44,845,700 -2,796,036 -5.87 137,676 22.97 0.0040
2021-02-05 2020-12-31 13F KOSMOS ENERGY COM 500688106 47,641,736 -4,304,524 -8.29 111,958 120.92 0.0036
2020-11-06 2020-09-30 13F KOSMOS ENERGY COM 500688106 51,946,260 8,459,044 19.45 50,678 -29.80 0.0019
2020-08-14 2020-06-30 13F KOSMOS ENERGY COM 500688106 43,487,216 15,076,513 53.07 72,190 183.72 0.0029
2020-05-01 2020-03-31 13F KOSMOS ENERGY COM 500688106 28,410,703 5,134,666 22.06 25,444 -80.82 0.0012
2020-02-13 2019-12-31 13F KOSMOS ENERGY COM 500688106 23,276,037 794,028 3.53 132,674 -5.43 0.0051
2019-11-08 2019-09-30 13F KOSMOS ENERGY COM 500688106 22,482,009 2,489,854 12.45 140,287 11.91 0.0059
2019-08-22 2019-06-30 13F/A-1 KOSMOS ENERGY COM 500688106 19,992,155 2,101,446 11.75 125,352 12.47 0.0054
2019-08-13 2019-06-30 13F KOSMOS ENERGY COM 500688106 19,992,155 2,101,446 125,352
2019-05-09 2019-03-31 13F KOSMOS ENERGY COM 500688106 17,890,709 -915,946 -4.87 111,458 45.61 0.0050
2019-02-08 2018-12-31 13F KOSMOS ENERGY COM 500688106 18,806,655 4,528,398 31.72 76,544 -42.66 0.0039
2018-11-09 2018-09-30 13F KOSMOS ENERGY SHS G5315B107 14,278,257 -1,667,282 -10.46 133,502 1.24 0.0058
2018-08-09 2018-06-30 13F KOSMOS ENERGY SHS G5315B107 15,945,539 -2,017,439 -11.23 131,868 16.53 0.0061
2018-05-09 2018-03-31 13F KOSMOS ENERGY SHS G5315B107 17,962,978 1,884,072 11.72 113,166 2.75 0.0054
2018-02-09 2017-12-31 13F KOSMOS ENERGY SHS G5315B107 16,078,906 -1,751,850 -9.82 110,141 -22.40 0.0052
2017-11-14 2017-09-30 13F KOSMOS ENERGY SHS G5315B107 17,830,756 1,770,713 11.03 141,934 37.88 0.0072
2017-08-10 2017-06-30 13F KOSMOS ENERGY SHS G5315B107 16,060,043 787,145 5.15 102,942 1.20 0.0055
2017-05-12 2017-03-31 13F KOSMOS ENERGY SHS G5315B107 15,272,898 15,114,381 9,534.86 101,717 9,055.45 0.0056
2017-02-10 2016-12-31 13F KOSMOS ENERGY SHS G5315B107 158,517 -128,886 -44.85 1,111 -39.69 0.0016
2016-11-08 2016-09-30 13F KOSMOS ENERGY SHS G5315B107 287,403 -23,822 -7.65 1,842 8.61 0.0026
2016-08-10 2016-06-30 13F KOSMOS ENERGY SHS G5315B107 311,225 -1,246 -0.40 1,696 -6.71 0.0026
2016-05-10 2016-03-31 13F KOSMOS ENERGY SHS G5315B107 312,471 20,463 7.01 1,818 19.68 0.0029
2016-02-11 2015-12-31 13F KOSMOS ENERGY SHS G5315B107 292,008 5,720 2.00 1,519 -4.88 0.0022
2015-11-13 2015-09-30 13F KOSMOS ENERGY SHS G5315B107 286,288 -944 -0.33 1,597 -34.04 0.0025
2015-08-07 2015-06-30 13F KOSMOS ENERGY SHS G5315B107 287,232 73,519 34.40 2,421 43.25 0.0036
2015-05-13 2015-03-31 13F KOSMOS ENERGY SHS G5315B107 213,713 -333,847 -60.97 1,690 -63.21 0.0023
2015-02-09 2014-12-31 13F KOSMOS ENERGY SHS G5315B107 547,560 55,700 11.32 4,594 -6.23 0.0066
2014-10-29 2014-09-30 13F KOSMOS ENERGY SHS G5315B107 491,860 -34,000 -6.47 4,899 -17.05 0.0072
2014-08-06 2014-06-30 13F KOSMOS ENERGY SHS G5315B107 525,860 -145,096 -21.63 5,906 -19.97 0.0088
2014-05-02 2014-03-31 13F KOSMOS ENERGY SHS G5315B107 670,956 -71,445 -9.62 7,380 -11.10 0.0119
2014-02-12 2013-12-31 13F KOSMOS ENERGY SHS G5315B107 742,401 174,923 30.82 8,301 42.29 0.0136
2013-11-12 2013-09-30 13F KOSMOS ENERGY SHS G5315B107 567,478 409,663 259.58 5,834 263.94 0.0110
2013-08-13 2013-06-30 13F KOSMOS ENERGY SHS G5315B107 157,815 157,815 1,603 0.0032
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.