| 25.4M |
| $53.6M |
| +36.0% |
| 4.265% |
| 0.04% |
| 4 | D. E. Shaw & Co., Inc. | 24.5M | $51.8M | +20.4% | 4.121% | 0.02% |
| 5 | Equinox Partners Investment Management LLC | 20.7M | $43.6M | 0.0% | 3.473% | 20.54% |
| 6 | HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC | 18.8M | $39.8M | -6.0% | 3.165% | 0.12% |
| 7 | GEODE CAPITAL MANAGEMENT, LLC | 17.1M | $36.0M | +34.2% | 2.866% | 0.00% |
| 8 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 13.8M | $29.1M | -2.6% | 2.312% | 0.00% |
| 9 | VANGUARD PORTFOLIO MANAGEMENT LLC | 12.0M | $25.3M | +39.2% | 2.015% | 0.00% |
| 10 | Grantham, Mayo, Van Otterloo & Co. LLC | 11.9M | $25.0M | -35.3% | 1.990% | 0.06% |
| 11 | Invesco Ltd. | 10.9M | $23.1M | -1.8% | 1.839% | 0.00% |
| 12 | DIMENSIONAL FUND ADVISORS LP | 9.6M | $20.2M | +35.3% | 1.609% | 0.00% |
| 13 | GOLDMAN SACHS GROUP INC | 8.5M | $18.0M | -7.9% | 1.433% | 0.00% |
| 14 | AMERICAN CENTURY COMPANIES INC | 8.0M | $17.0M | +8083.6% | 1.350% | 0.01% |
| 15 | DAVIDSON KEMPNER CAPITAL MANAGEMENT LP | 8.0M | $16.9M | -5.0% | 1.344% | 0.20% |
| 16 | MILLENNIUM MANAGEMENT LLC | 7.4M | $15.7M | -41.2% | 1.248% | 0.01% |
| 17 | MORGAN STANLEY | 7.4M | $15.5M | +26.1% | 1.236% | 0.00% |
| 18 | Nuveen, LLC | 7.3M | $15.5M | +121.2% | 1.231% | 0.00% |
| 19 | M&G Plc | 7.4M | $14.8M | +5.4% | 1.244% | 0.07% |
| 20 | RENAISSANCE TECHNOLOGIES LLC | 7.0M | $14.8M | +31.3% | 1.177% | 0.02% |
| 21 | VANGUARD CAPITAL MANAGEMENT LLC | 6.8M | $14.4M | +6.1% | 1.144% | 0.00% |
| 22 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 6.5M | $13.7M | +10.9% | 1.087% | 0.00% |
| 23 | UBS Group AG | 6.1M | $12.8M | +26.3% | 1.021% | 0.00% |
| 24 | NORTHERN TRUST CORP | 5.3M | $11.2M | +25.6% | 0.892% | 0.00% |
| 25 | Bridgewater Associates, LP | 4.7M | $10.0M | — | 0.793% | 0.04% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in KOS — a direct measure of their conviction.
| 71.34% |
| +0.04 pp |
| $936M |
| 28% |
| Q4 2024 | 264 | +0.0% | 71.30% | 2.21 pp | $1.30B | 14% |
| Q3 2024 | 264 | — | 73.51% | — | $1.52B | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
48 institutions opened new positions in KOS during Q2 2026, while 41 fully exited. 68 added to existing positions and 149 trimmed.
KOS institutional ownership fell by 0.46 percentage points quarter-over-quarter, with a net change of +4 holders.
The top 10 institutions account for 52.5% of all reported 13F value in KOS, and the top 25 account for 77.8%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Kosmos Energy Ltd. (KOS) Institutional Ownership