KOS · Insider trading · 13F holders · Congress trades
Kosmos Energy Ltd. Common Shares (KOS)
Who is buying and selling KOS: company insiders on SEC Form 4, hedge funds and superinvestors on Form 13F, and members of Congress under the STOCK Act. Every figure links to the filing or page it comes from.
- 13F filers holding
- 9
- Insider buys, 90 days
- $0
- Insider sales, 90 days
- $0
- Congress trades, 12 months
- 2
KOS at a glance
- No open-market insider purchases or sales of KOS were filed in the last 90 days.
- 9 13F filers hold KOS among their 50 largest positions, worth $68.9M combined. The biggest bets by portfolio weight are Equinox Partners Investment Management LLC (20.5%), GeoSphere Capital Management, LLC (3.1%) and Gratia Capital, LLC (2.3%). In their latest 13Fs, 1 manager opened a new position and 2 added to one.
- Members of Congress have disclosed 2 KOS trades since 2022, 1 purchase and 1 sale in the past year; the latest was Chris Jacobs (R-NY), selling $15K–50K on Jun 16, 2022.
- KOS last closed at $2.74 on Oct 30, 2026.
KOS insider trading
No open-market insider purchases or sales of KOS were filed in the last 90 days.
Who owns KOS? Hedge funds and superinvestors
9 13F filers hold KOS among their 50 largest positions, worth $68.9M combined. The biggest bets by portfolio weight are Equinox Partners Investment Management LLC (20.5%), GeoSphere Capital Management, LLC (3.1%) and Gratia Capital, LLC (2.3%). In their latest 13Fs, 1 manager opened a new position and 2 added to one.
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| Equinox Partners Investment Management LLCHedge fund | 20.5% | $43.6M | 20,678,033 | +0.0% shares | Q2 2026 |
| Ostrum Asset ManagementAsset manager | 0.4% | $8.5M | 4,008,525 | +0.0% shares | Q2 2026 |
| GeoSphere Capital Management, LLCHedge fund | 3.1% | $5.9M | 2,813,788 | +38.0% shares | Q2 2026 |
| Ballast Asset Management, LPMutual fund manager | 1.7% | $4.2M | 2,008,153 | -1.0% shares | Q2 2026 |
| First Sabrepoint Capital Management LPHedge fund | 0.9% | $2.1M | 1,000,000 | +0.0% shares | Q2 2026 |
| Gratia Capital, LLCHedge fund | 2.3% | $2.0M | 963,678 | +33.9% shares | Q2 2026 |
| Plustick Management LLCHedge fund | 0.8% | $1.9M | 900,000 | New | Q2 2026 |
| Dalton Investments, Inc.Hedge fund | 0.5% | $528K | 250,000 | +0.0% shares | Q2 2026 |
| IronBridge Private Wealth, LLCWealth manager | 0.0% | $21K | 10,000 | +0.0% shares | Q2 2026 |
Each manager counts with its latest 13F (Q2 2026: 9). Screen KOS in the grand portfolio →
KOS stock trades by members of Congress
Members of Congress have disclosed 2 KOS trades since 2022, 1 purchase and 1 sale in the past year; the latest was Chris Jacobs (R-NY), selling $15K–50K on Jun 16, 2022.
| Filed | Member | Trade | Amount | Traded | Since |
|---|---|---|---|---|---|
| Jul 28, 2022 | Chris JacobsR-NY · House | Sale | $15K–50K | Jun 16, 2022 | -60.8% |
| May 19, 2022 | Chris JacobsR-NY · House | Buy | $1K–15K | Apr 11, 2022 | -63.8% |
KOS questions and answers
Are insiders buying KOS stock?
No open-market insider purchases or sales of KOS were filed in the last 90 days.
Which hedge funds own KOS?
9 13F filers hold KOS among their 50 largest positions, worth $68.9M combined. The biggest bets by portfolio weight are Equinox Partners Investment Management LLC (20.5%), GeoSphere Capital Management, LLC (3.1%) and Gratia Capital, LLC (2.3%). In their latest 13Fs, 1 manager opened a new position and 2 added to one.
Has Congress traded KOS?
Members of Congress have disclosed 2 KOS trades since 2022, 1 purchase and 1 sale in the past year; the latest was Chris Jacobs (R-NY), selling $15K–50K on Jun 16, 2022.
Who is the largest holder of KOS?
Among 13F filers, Equinox Partners Investment Management LLC reports the largest KOS position, $43.6M (20,678,033 shares) in its Q2 2026 13F. The biggest bet by portfolio weight is Equinox Partners Investment Management LLC's: 20.5% of its portfolio.
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