Kosmos Energy Ltd. (KOS) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

478,254,000Shares Outstanding

348,481,781Shares held by institutions

$1,017,566,801Value of institutional holdings

72.87%Institutional ownership %

-13.31%Shares Changed QoQ

207No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Kosmos Energy Ltd. (NYSE:KOS) appears in 206 institutional 13F filings for the quarter ending December 2025.

These investors held 71.4% of outstanding shares in December 2025, down from 85.5% in September 2025.
They decreased total shares held in Kosmos Energy by -13.91% from last quarter, and the number of investors in KOS decreased 22.56% annually.
Activity in KOS broke down as 85 buyers, 87 sellers, and 34 unchanged among 206 total holders.
The aggregate institutional position in Kosmos Energy amounted to 341.69Mn shares as of December 2025, down by 55.2Mn shares quarter on quarter, and down 100.49Mn shares year over year.
Equinox Partners Investment Management LLC holds the largest position in KOS at 20.68Mn shares as of December 31, 2025, or 4.32% of shares outstanding.
The biggest buyers of Kosmos Energy for the quarter ending December 2025 included Equinox Partners Investment Management LLC (1.21Mn), SG Americas Securities, LLC (601.37K), SANDERS MORRIS HARRIS LLC (71.0K), WEALTH ENHANCEMENT ADVISORY SERVICES, LLC (40.94K), INSPIRION WEALTH ADVISORS, LLC (27.83K).
Top sellers of KOS stock for the quarter ending December 2025 included Inspire Investing, LLC (340.51K), Raiffeisen Bank International AG (300.0K), Sterling Capital Management LLC (12.8K), Fruth Investment Management (2.0K), Farther Finance Advisors, LLC (1.61K).
According to Business Quant data, leading holders of KOS for December 2025 are Equinox Partners Investment Management LLC (20.68Mn), VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. (4.01Mn), SG Americas Securities, LLC (722.89K), Raiffeisen Bank International AG (700.0K), Inspire Investing, LLC (183.42K), GF FUND MANAGEMENT CO. LTD. (163.7K), Pictet Asset Management Holding SA (86.68K), SANDERS MORRIS HARRIS LLC (71.0K), WEALTH ENHANCEMENT ADVISORY SERVICES, LLC (40.94K), Fruth Investment Management (30.0K).

211 Institutional Holders

348,481,781 Total Shares Held

Rows:

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Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
BlackRock, Inc.	31 Dec, 2025	46,852,560	-22,057,575	-32.01%	$42,514,014.00
Grantham, Mayo, Van Otterloo & Co. LLC	31 Dec, 2025	34,804,317	23,350	0.07%	$31,581,437.00
State Street Corp	31 Dec, 2025	20,430,076	1,023,469	5.27%	$18,538,251.00
HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC	31 Dec, 2025	20,110,881	-884,620	-4.21%	$18,248,613.00
Equinox Partners Investment Management LLC	31 Dec, 2025	19,469,980	1,689,500	9.50%	$17,667,060.00
VANGUARD GROUP INC	31 Dec, 2025	14,836,244	515,647	3.60%	$13,456,474.00
MILLENNIUM MANAGEMENT LLC	31 Dec, 2025	14,827,966	-1,351,482	-8.35%	$13,454,896.00
Goldman Sachs Group Inc	31 Dec, 2025	13,533,714	11,075,132	450.47%	$12,280,492.00
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	31 Dec, 2025	12,045,593	1,962,936	19.47%	$10,930,171.00
AMERICAN CENTURY COMPANIES INC	31 Dec, 2025	11,300,711	-19,075,012	-62.80%	$10,254,266.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	11,272,318	832,029	7.97%	$10,230,410.00
JANE STREET GROUP, LLC	31 Dec, 2025	9,269,753	7,527,058	431.92%	$8,411,374.00
M&G Plc	31 Dec, 2025	8,736,923	758,779	9.51%	$8,736,923.00
FIRST TRUST ADVISORS LP	31 Dec, 2025	7,048,196	2,825,517	66.91%	$6,395,533.00
UBS Group AG	31 Dec, 2025	6,138,033	-1,187,319	-16.21%	$5,567,195.00
D. E. Shaw & Co., Inc.	31 Dec, 2025	5,965,703	4,044,309	210.49%	$5,413,279.00
Russell Investments Group, Ltd.	31 Dec, 2025	5,885,653	-354,073	-5.67%	$5,340,640.00
DIMENSIONAL FUND ADVISORS LP	31 Dec, 2025	5,878,286	-1,733,012	-22.77%	$5,333,861.00
CITADEL ADVISORS LLC	31 Dec, 2025	5,556,252	-1,069,269	-16.14%	$5,041,744.00
Morgan Stanley	31 Dec, 2025	4,709,209	-1,541,395	-24.66%	$4,273,137.00

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