KOS · Kosmos Energy Ltd. · Shareholders & Ownership
$2.67
-0.10 (-3.44%)
At close · Oct 21
Return incl. dividend (before tax)
Market Cap
$1.64B
Shares
595.49M
Volume · Oct 21
5.84M
Avg daily vol (3M)
12.55M
Every disclosed holder of KOS in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.
Who Owns KOS
13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions| Holder group | Shares | % Out |
|---|---|---|
| Institutional (13F) | 430,580,874 | 72.31% |
| Insiders (Forms 3, 4, 5) | 15,413,891 | 2.59% |
| 13D/G-only blocks | 33,071,031 | 5.55% |
| Remaining | 116,421,855 | 19.55% |
| Registered funds (N-PORT, not summed) | 159,819,807 | 26.84% |
Shares outstanding: 595,487,651, the issuer's latest cover-page count restated onto today's split basis.
13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.
Holders of KOS
| # | Holder | Shares | As of | Notes |
|---|---|---|---|---|
| 1 |
BlackRock, Inc.
13F
CIK 2012383 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
56,023,521 | ||
| 1.1 |
BlackRock, Inc.
13G
CIK 2012383 · Holding company · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
|
47,915,849 | ||
| 1.2 |
iShares Russell 2000 ETF
Fund
S000004344 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
15,421,170 | ||
| 1.3 |
iShares Russell 2000 Value ETF
Fund
S000004342 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
5,238,382 | ||
| 1.4 |
Master Small Cap Index Series
Fund
S000002716 · Registered fund · Jun 30, 2026
Quantitative Master Series LLC, not summed
|
1,112,332 | ||
| 1.5 |
iShares Core S&P Total U.S. Stock Market ETF
Fund
S000004317 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
812,779 | ||
| 2 |
|
29,453,016 | ||
| 2.1 |
State Street(R) SPDR(R) S&P(R) Oil & Gas Exploration & Production ETF
Fund
S000012319 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
|
15,764,350 | ||
| 2.2 |
STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO
Fund
S000050332 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
|
180,100 | ||
| 2.3 |
State Street(R) SPDR(R) S&P(R) North American Natural Resources ETF
Fund
S000052050 · Registered fund · Jun 30, 2026
SPDR INDEX SHARES FUNDS, not summed
|
67,465 | ||
| 2.4 |
State Street(R) SPDR(R) Portfolio MSCI Global Stock Market ETF
Fund
S000036082 · Registered fund · Jun 30, 2026
SPDR INDEX SHARES FUNDS, not summed
|
41,897 | ||
| 2.5 |
State Street Total Return V.I.S. Fund
Fund
S000001637 · Registered fund · Jun 30, 2026
STATE STREET VARIABLE INSURANCE SERIES FUNDS INC, not summed
|
15,021 | ||
| 3 |
TWO SIGMA INVESTMENTS, LP
13F
CIK 1179392 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
25,398,092 | ||
| 4 |
cobas asset management, sgiic, s.a.
13G
CIK 1705931 · Non-US institution · Apr 10, 2025
|
24,779,551 | ||
| 5 |
D. E. Shaw & Co., Inc.
13F
CIK 1009207 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
24,538,308 | ||
| 6 |
Equinox Partners Investment Management LLC
13F
CIK 938552 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
20,678,033 | ||
| 7 |
HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC
13F
CIK 1164833 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
18,844,781 | ||
| 7.1 |
Hotchkis and Wiley Mid-Cap Value Fund
Fund
S000006214 · Registered fund · Jun 30, 2026
HOTCHKIS & WILEY FUNDS/DE/, not summed
|
6,545,120 | ||
| 7.2 |
Hotchkis and Wiley Small Cap Value Fund
Fund
S000006215 · Registered fund · Jun 30, 2026
HOTCHKIS & WILEY FUNDS/DE/, not summed
|
2,063,300 | ||
| 7.3 |
Hotchkis and Wiley Small Cap Diversified Value Fund
Fund
S000045868 · Registered fund · Jun 30, 2026
HOTCHKIS & WILEY FUNDS/DE/, not summed
|
1,170,313 | ||
| 7.4 |
Hotchkis & Wiley International Value Fund
Fund
S000052191 · Registered fund · Jun 30, 2026
HOTCHKIS & WILEY FUNDS/DE/, not summed
|
13,788 | ||
| 7.5 |
Hotchkis & Wiley International Small Cap Diversified Value Fund
Fund
S000068938 · Registered fund · Jun 30, 2026
HOTCHKIS & WILEY FUNDS/DE/, not summed
|
12,630 | ||
| 8 |
GEODE CAPITAL MANAGEMENT, LLC
13F
CIK 1214717 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
17,066,608 | ||
| 9 |
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
13F
CIK 884546 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
13,769,666 | ||
| 9.1 |
Schwab Fundamental U.S. Small Company ETF
Fund
S000040878 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
|
6,751,348 | ||
| 9.2 |
Schwab U.S. Small-Cap ETF
Fund
S000026636 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
|
2,774,492 | ||
| 9.3 |
Schwab Fundamental U.S. Small Company Index Fund
Fund
S000016767 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
|
1,817,769 | ||
| 9.4 |
Schwab Small-Cap Index Fund
Fund
S000005912 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
|
1,443,193 | ||
| 9.5 |
Schwab Total Stock Market Index Fund
Fund
S000005913 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
|
387,130 | ||
| 10 |
VANGUARD PORTFOLIO MANAGEMENT LLC
13F
CIK 2100121 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
12,000,418 | ||
| 11 |
Grantham, Mayo, Van Otterloo & Co. LLC
13F
CIK 1352662 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
11,850,124 | ||
| 11.1 |
GMO Resources Fund
Fund
S000034948 · Registered fund · May 31, 2026
GMO TRUST, not summed
|
8,604,569 | ||
| 11.2 |
GMO Implementation Fund
Fund
S000036091 · Registered fund · May 31, 2026
GMO TRUST, not summed
|
528,058 | ||
| 12 |
Invesco Ltd.
13F
CIK 914208 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
10,949,038 | ||
| 12.1 |
Invesco Small Cap Value Fund
Fund
S000027837 · Registered fund · Jul 31, 2026
AIM Sector Funds (Invesco Sector Funds), not summed
|
8,853,928 | ||
| 12.2 |
Invesco RAFI US 1500 Small-Mid ETF
Fund
S000013120 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust, not summed
|
1,790,297 | ||
| 13 |
DIMENSIONAL FUND ADVISORS LP
13F
CIK 354204 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
9,582,883 | ||
| 13.1 |
Dimensional U.S. Small Cap ETF
Fund
S000070906 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
|
1,991,084 | ||
| 13.2 |
U.S. SMALL CAP PORTFOLIO
Fund
S000000971 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
|
1,914,944 | ||
| 13.3 |
U.S. MICRO CAP PORTFOLIO
Fund
S000000948 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
|
1,737,513 | ||
| 13.4 |
Dimensional U.S. Core Equity 2 ETF
Fund
S000070903 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
|
1,407,006 | ||
| 13.5 |
Dimensional U.S. Equity Market ETF
Fund
S000070902 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
|
187,046 | ||
| 14 |
GOLDMAN SACHS GROUP INC
13F
CIK 886982 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
8,531,947 | ||
| 14.1 |
Goldman Sachs Small Cap Value Insights Fund
Fund
S000014929 · Registered fund · Jul 31, 2026
Goldman Sachs Trust, not summed
|
384,633 | ||
| 14.2 |
Goldman Sachs Small Cap Equity Insights Fund
Fund
S000009329 · Registered fund · Jul 31, 2026
Goldman Sachs Trust, not summed
|
345,879 | ||
| 14.3 |
Multi-Manager U.S. Small Cap Equity Fund
Fund
S000051363 · Registered fund · Apr 30, 2026
Goldman Sachs Trust II, not summed
|
67,763 | ||
| 14.4 |
Goldman Sachs Variable Insurance Trust Small Cap Equity Insights Fund
Fund
S000009355 · Registered fund · Jun 30, 2026
Goldman Sachs Variable Insurance Trust, not summed
|
49,866 | ||
| 15 |
BlackRock Portfolio Management LLC
13G
CIK 2052113 · Holding company · Dec 31, 2025
Rule 13d-1(b), qualified institution
|
8,291,480 | ||
| 16 |
AMERICAN CENTURY COMPANIES INC
13F
CIK 748054 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
8,036,479 | ||
| 17 |
Davidson Kempner Capital Management LP
13F
CIK 1595082 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
8,000,323 | ||
| 18 |
MILLENNIUM MANAGEMENT LLC
13F
CIK 1273087 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
7,429,695 | ||
| 19 |
M&G PLC
13F
CIK 1802539 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
7,409,687 | ||
| 20 |
MORGAN STANLEY
13F
CIK 895421 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
7,360,428 | ||
| 20.1 |
E*TRADE No Fee Total Market Index Fund
Fund
S000090722 · Registered fund · Jul 31, 2026
E Trade Trust, not summed
|
216 | ||
| 21 |
|
7,330,487 | ||
| 21.1 |
College Retirement Equities Fund - Total Global Stock Account
Fund
S000005080 · Registered fund · Jun 30, 2026
College Retirement Equities Fund, not summed
|
3,145,440 | ||
| 21.2 |
Nuveen Equity Index Fund
Fund
S000005360 · Registered fund · Jul 31, 2026
TIAA-CREF Funds, not summed
|
1,301,840 | ||
| 21.3 |
Nuveen Quant Small/Mid Cap Equity Fund
Fund
S000054623 · Registered fund · Jul 31, 2026
TIAA-CREF Funds, not summed
|
824,300 | ||
| 21.4 |
Nuveen Small Cap Blend Index Fund
Fund
S000005367 · Registered fund · Jul 31, 2026
TIAA-CREF Funds, not summed
|
787,003 | ||
| 21.5 |
Nuveen Life Stock Index Fund
Fund
S000005094 · Registered fund · Jun 30, 2026
TIAA-CREF Life Funds, not summed
|
6,795 | ||
| 22 |
RENAISSANCE TECHNOLOGIES LLC
13F
CIK 1037389 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
7,008,668 | ||
| 23 |
VANGUARD EXTENDED MARKET INDEX FUND
Fund
S000002841 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
6,814,640 | ||
| 24 |
VANGUARD CAPITAL MANAGEMENT LLC
13F
CIK 2100119 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
6,812,762 | ||
| 25 |
|
6,079,462 | ||
| 26 |
VANGUARD ENERGY INDEX FUND
Fund
S000004448 · Registered fund · May 31, 2026
VANGUARD WORLD FUND, not summed
|
5,739,070 | ||
| 27 |
NORTHERN TRUST CORP
13F
CIK 73124 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
5,312,419 | ||
| 27.1 |
Small Cap Index Fund
Fund
S000001245 · Registered fund · Jun 30, 2026
Northern Funds, not summed
|
301,070 | ||
| 27.2 |
Small Cap Core Fund
Fund
S000001244 · Registered fund · Jun 30, 2026
Northern Funds, not summed
|
55,824 | ||
| 27.3 |
FlexShares Morningstar US Market Factor Tilt Index Fund
Fund
S000033312 · Registered fund · Jul 31, 2026
FlexShares Trust, not summed
|
15,010 | ||
| 28 |
|
5,036,228 | ||
| 29 |
Bridgewater Associates, LP
13F
CIK 1350694 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
4,720,550 | ||
| 30 |
|
4,678,043 | ||
| 31 |
Boston Partners
13F
CIK 1386060 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
4,097,453 | ||
| 32 |
AQR CAPITAL MANAGEMENT LLC
13F
CIK 1167557 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
4,087,736 | ||
| 32.1 |
AQR Small Cap Multi-Style Fund
Fund
S000040064 · Registered fund · Jun 30, 2026
AQR Funds, not summed
|
100,396 | ||
| 33 |
FIRST TRUST ADVISORS LP
13F
CIK 1125816 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
4,013,283 | ||
| 33.1 |
First Trust Natural Gas ETF
Fund
S000017177 · Registered fund · Jun 30, 2026
First Trust Exchange-Traded Fund, not summed
|
3,999,735 | ||
| 34 |
OSTRUM ASSET MANAGEMENT
13F
CIK 1767945 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
4,008,525 | ||
| 35 |
VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P.
13F
CIK 1021642 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
4,008,525 | ||
| 36 |
VANGUARD FIDUCIARY TRUST CO
13F
CIK 933478 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
3,481,976 | ||
| 37 |
SUSQUEHANNA INTERNATIONAL GROUP, LLP
13F
CIK 1446194 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
3,356,675 | ||
| 38 |
BANK OF AMERICA CORP /DE/
13F
CIK 70858 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
2,932,515 | ||
| 39 |
GeoSphere Capital Management, LLC
13F
CIK 1426876 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
2,813,788 | ||
| 40 |
Russell Investments Group, Ltd.
13F
CIK 1692234 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
2,643,845 | ||
| 40.1 |
Tax-Managed Real Assets Fund
Fund
S000064943 · Registered fund · Jul 31, 2026
RUSSELL INVESTMENT CO, not summed
|
2,227,246 | ||
| 41 |
ALGERT GLOBAL LLC
13F
CIK 1275218 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
2,490,698 | ||
| 42 |
VANGUARD RUSSELL 2000 INDEX FUND
Fund
S000030003 · Registered fund · May 31, 2026
VANGUARD SCOTTSDALE FUNDS, not summed
|
2,437,449 | ||
| 43 |
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC
13F
CIK 861177 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
2,281,727 | ||
| 44 |
WELLS FARGO & COMPANY/MN
13F
CIK 72971 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
2,057,790 | ||
| 45 |
NOMURA HOLDINGS INC
13F
CIK 1163653 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
2,029,307 | ||
| 46 |
Ballast Asset Management, LP
13F
CIK 1998389 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
2,008,153 | ||
| 47 |
Point72 Asset Management, L.P.
13F
CIK 1603466 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,977,722 | ||
| 48 |
|
1,935,410 | ||
| 49 |
Bank of New York Mellon Corp
13F
CIK 1390777 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,854,622 | ||
| 50 |
American Beacon Small Cap Value Fund
Fund
S000001818 · Registered fund · Jul 31, 2026
AMERICAN BEACON FUNDS, not summed
|
1,798,207 |
25 more nested rows are not shown here; Every filing lists them all.
Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.
Showing 1–50 of 351 holders
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Key facts
CIK
1509991
CUSIP
500688106
13F (30d)
16 filings
16 filers
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