Kosmos Energy

KOS

Market cap $1.33B

KOS Hedge Fund Activity: Q1 2026 in Review

262 of the 8,126 institutional investors tracked by Wall St. Rank reported a position in Kosmos Energy (KOS) for Q1 2026, worth a combined $1.21B — up 289% from $311M a quarter earlier.

Buyers outnumbered sellers: 87 funds opened new KOS positions and 31 closed out — a net gain of 56 holders — while 87 added to existing stakes and 59 trimmed.

The largest buyer was Two Sigma Investments, adding an estimated $27.9M. The largest seller was Grantham, Mayo, Van Otterloo & Co (GMO), cutting an estimated $31M.

• 262 institutional investors held Kosmos Energy (KOS) as of Q1 2026, up from 210 in Q4 2025.
• Funds reported $1.21B of Kosmos Energy stock for Q1 2026, up 289% quarter-over-quarter.
• 87 funds opened new Kosmos Energy positions in Q1 2026 and 31 closed out, a net change of +56 holders.
• The largest Kosmos Energy buyer in Q1 2026 was Two Sigma Investments, an estimated $27.9M added.
• The largest Kosmos Energy seller in Q1 2026 was Grantham, Mayo, Van Otterloo & Co (GMO), an estimated $31M sold.

Based on aggregated 13F filings for Q1 2026.