KOS Institutional Ownership
Who owns Kosmos Energy Ltd. and what the big funds did with it last quarter, from every SEC 13F filing. 268 funds reported holding KOS at Jun 30, 2026, together owning 72.4% of the company.
- ▲167 buying vs 107 selling
- ▼Held by funds -2.0 pts
- ▲Funds holding +3
- ▲Superinvestors: 3 added, 2 cut
- ●Put/call not meaningful
What the filings show, not a forecast. Positions can be up to 45 days old and leave out short sales.
Funds holding and ownership
8 quartersQuarter over quarter
all 13F filers| Q2 2026 | This quarter | Q1 2026 | Change |
|---|---|---|---|
| Funds holding | 268 | 265 | +1.1% |
| In funds' top 10 | 1 | 3 | −66.7% |
| 13F shares | 431M | 443M | −2.7% |
| Held by funds | 72.4% | 74.4% | −2.0 pts |
| New positions | 49 | 81 | −39.5% |
| Increased | 118 | 86 | +37.2% |
| Reduced | 64 | 58 | +10.3% |
| Sold out | 43 | 32 | +34.4% |
| Calls (shares) | 3.1M | 2.2M | +39.7% |
| Puts (shares) | 12K | 12K | 0.0% |
| Put/call ratio | 0.00 | 0.01 | −28.4% |
Buyers vs sellers
adding or new vs cutting or sold outSuperinvestors in KOS
All superinvestors →
Who owns KOS
share of fund held shares- Index and passive funds39.4%
- Active managers and hedge funds49.4%
- Banks and brokers10.5%
- Pensions, insurers and other0.7%
The top 10 holders own 53.3% of all KOS shares that funds reported. Groups are our own grouping of filers by name.
Put/call ratio
funds' options, market makers left outAbove 1 means funds hold more puts than calls, a sign of hedging or bets on a fall. Options are valued at the underlying shares.
Filed so far for Q3 2026
49 funds changed their position- Creative PlanningAdded+404K sh
- WESPAC Advisors, LLCNew+357K sh
- CenterBook Partners LPTrimmed−332K sh
- Mackenzie Financial CorpTrimmed−275K sh
- Inspire Investing, LLCAdded+170K sh
🔒 Free account: see all 20.
Top holders
Q2 2026| # | Fund | Of company | Shares | Value | Change |
|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 9.41% | 56M | $118M | +8.6M |
| 2 | State Street Corp | 4.95% | 29.5M | $62.1M | +1.2M |
| 3 | Two Sigma Investments, LP | 4.26% | 25.4M | $53.6M | +6.7M |
| 4 | D. E. Shaw & Co., Inc. | 4.12% | 24.5M | $51.8M | +4.2M |
| 5 | Equinox Partners Investment Management LLC | 3.47% | 20.7M | $43.6M | 0 |
| 6 | Hotchkis & Wiley Capital Management LLC | 3.16% | 18.8M | $39.8M | −1.2M |
| 7 | Geode Capital Management, LLC | 2.87% | 17.1M | $36M | +4.4M |
| 8 | Charles Schwab Investment Management Inc | 2.31% | 13.8M | $29.1M | −366K |
| 9 | Vanguard Portfolio Management LLC | 2.02% | 12M | $25.3M | +3.4M |
| 10 | Grantham, Mayo, Van Otterloo & Co. LLC | 1.99% | 11.9M | $25M | −6.5M |
- BlackRock, Inc.+8.6M sh+$18.1M
- American Century Companies Inc+7.9M sh+$16.7M
- Two Sigma Investments, LP+6.7M sh+$14.2M
- Bridgewater Associates, LP+4.7M sh+$10M
- Geode Capital Management, LLC+4.4M sh+$9.2M
- D. E. Shaw & Co., Inc.+4.2M sh+$8.8M
- Nuveen, LLC+4M sh+$8.5M
- Vanguard Portfolio Management LLC+3.4M sh+$7.1M
- Jane Street Group, LLC−11.6M sh−$24.6M
- Grantham, Mayo, Van Otterloo & Co. LLC−6.5M sh−$13.6M
- Monaco Asset Management SAM−4M sh−$11.2M
- Millennium Management LLC−5.2M sh−$11M
- Ghisallo Capital Management LLC−3.7M sh−$10.2M
- Citadel Advisors LLC−4.3M sh−$9M
- Covalis Capital LLP−3.2M sh−$8.8M
- First Trust Advisors LP−3.7M sh−$7.8M
KOS institutional ownership FAQ
Who owns the most KOS stock?
In Q2 2026 13F filings the largest holder of KOS was BlackRock, Inc., followed by State Street Corp and Two Sigma Investments, LP. Index fund managers are usually the biggest holders of large companies.
What percentage of KOS is owned by institutions?
Funds that file 13F reports held 72.4% of KOS's shares at Jun 30, 2026, compared with 74.4% a quarter earlier. That counts every manager with more than $100 million in US stocks.
Are hedge funds buying KOS?
In Q2 2026, 167 funds bought KOS (49 of them new positions) and 107 sold (43 sold out completely). Among well known investors, 3 added and 2 cut. Our fund sentiment for KOS is bullish.
What is KOS's institutional put/call ratio?
Funds reported $26K of KOS puts against $6.5M of calls, a put/call ratio of 0.00 (0.01 the quarter before). Market makers and bank trading desks are left out, since their options are mostly hedges.
How current is this KOS ownership data?
13F filings show holdings at the end of each quarter and are due within 45 days, so positions can be up to six weeks old when they appear. We add each new filing within minutes, and the "filed so far" list shows funds that have already reported the next quarter.
For informational and educational purposes only. Not investment advice, and not a recommendation to buy or sell any security. Fund sentiment summarises what 13F filings show and is not a forecast. Holdings come from SEC Form 13F filings as reported and show positions at the end of the quarter, up to 45 days before the filing. A 13F leaves out short positions, cash, bonds and most foreign holdings. See all hedge fund holdings.