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KOS · Kosmos Energy Ltd.

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$2.86 -0.01 (-0.35%)
Market Cap
$1.71B
Shares
595.49M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 268
Total Value: $927,030,701
Total Shares: 439,351,126
Showing 1–100 of 278 holdings by value · page 1 of 3

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 268 13F filers · Δ vs Mar 31, 2026
Top Holder
12.8%
Sep 2023 → Jun 2026 · range 10.5% – 17.1%
+2.0 pts
Top 5
35.5%
Sep 2023 → Jun 2026 · range 30.9% – 43.2%
+4.6 pts
Top 10
52.3%
Sep 2023 → Jun 2026 · range 48.2% – 60.6%
+4.1 pts
HHI
407
Sep 2023 → Jun 2026 · range 341 – 581
Broadly held+66

Quarterly Activity

vs Mar 31, 2026
New
49
Increased
117
Decreased
66
Sold Out
45
Unchanged
36
Holder count: +4
Institutional value: -24.7%
Shares held: -0.8%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 278
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1509991 CUSIP 500688106 13F (30d) 227 filings 226 filers Visit website Investor relations