SMMT · Summit Therapeutics Inc. · Shareholders & Ownership
$15.83
-0.26 (-1.62%)
At close · Oct 21
Return incl. dividend (before tax)
Going-concern doubt
— flagged Jul 23, 2026
Substantial doubt about the company's ability to continue as a going concern.
“These conditions raise substantial doubt about the Company's ability to continue as a going concern.”View the 10-Q filed Jul 23, 2026
Market Cap
$12.84B
Shares
797.75M
Volume · Oct 21
5.37M
Avg daily vol (3M)
6.1M
Every disclosed holder of SMMT 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 SMMT
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) | 136,089,970 | 17.06% |
| Insiders (Forms 3, 4, 5) | 655,688,382 | 82.19% |
| 13D/G-only blocks | 0 | 0.00% |
| Remaining | 5,971,250 | 0.75% |
| Registered funds (N-PORT, not summed) | 39,756,878 | 4.98% |
Shares outstanding: 797,749,602, 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 SMMT
| # | Holder | Shares | As of | Notes |
|---|---|---|---|---|
| 1 |
DUGGAN ROBERT W
Insider
CIK 1055919 · Jun 12, 2026
Director, Co-Chief Executive Officer, 10% Owner, issuer-wide
|
610,015,809 | ||
| 1.1 |
|
555,736,060 | ||
| 2 |
BAKER BROS. ADVISORS LP
13F
CIK 1263508 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
32,786,348 | ||
| 3 |
|
32,057,147 | ||
| 4 |
Zanganeh Mahkam
Insider
CIK 1507650 · Jun 12, 2026
Director, Co-Chief Executive Officer, 10% Owner, issuer-wide
|
10,230,776 | ||
| 5 |
FMR LLC
13F
CIK 315066 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
10,043,947 | ||
| 5.1 |
Fidelity Growth Company Fund
Fund
S000007119 · Registered fund · May 31, 2026
Fidelity Mt. Vernon Street Trust, not summed
|
2,652,737 | ||
| 5.2 |
Select Biotechnology Portfolio
Fund
S000007486 · Registered fund · May 31, 2026
Fidelity Select Portfolios, not summed
|
1,067,669 | ||
| 5.3 |
Select Health Care Portfolio
Fund
S000007466 · Registered fund · May 31, 2026
Fidelity Select Portfolios, not summed
|
800,000 | ||
| 5.4 |
Fidelity Extended Market Index Fund
Fund
S000006021 · Registered fund · May 31, 2026
Fidelity Concord Street Trust, not summed
|
797,519 | ||
| 5.5 |
Fidelity Growth Company K6 Fund
Fund
S000065696 · Registered fund · May 31, 2026
Fidelity Mt. Vernon Street Trust, not summed
|
778,918 | ||
| 6 |
|
9,536,796 | ||
| 6.1 |
State Street(R) SPDR(R) S&P(R) Biotech ETF
Fund
S000010018 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
|
7,453,137 | ||
| 6.2 |
STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO
Fund
S000050332 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
|
43,600 | ||
| 6.3 |
State Street Balanced Index Fund
Fund
S000082802 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
|
822 | ||
| 6.4 |
State Street Total Return V.I.S. Fund
Fund
S000001637 · Registered fund · Jun 30, 2026
STATE STREET VARIABLE INSURANCE SERIES FUNDS INC, not summed
|
800 | ||
| 7 |
BlackRock, Inc.
13F
CIK 2012383 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
9,529,041 | ||
| 7.1 |
iShares Biotechnology ETF
Fund
S000004350 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
955,912 | ||
| 7.2 |
iShares Russell Mid-Cap Growth ETF
Fund
S000004336 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
791,547 | ||
| 7.3 |
iShares Russell Mid-Cap ETF
Fund
S000004338 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
554,624 | ||
| 7.4 |
iShares Russell 1000 Growth ETF
Fund
S000004346 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
515,771 | ||
| 7.5 |
BlackRock Health Sciences Opportunities Portfolio
Fund
S000001877 · Registered fund · May 29, 2026
BlackRock Funds, not summed
|
276,987 | ||
| 8 |
VANGUARD CAPITAL MANAGEMENT LLC
13F
CIK 2100119 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
5,734,484 | ||
| 9 |
|
5,233,798 | ||
| 10 |
VANGUARD PORTFOLIO MANAGEMENT LLC
13F
CIK 2100121 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
5,042,190 | ||
| 11 |
GOLDMAN SACHS GROUP INC
13F
CIK 886982 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
4,513,399 | ||
| 11.1 |
Goldman Sachs Equal Weight U.S. Large Cap Equity ETF
Fund
S000058070 · Registered fund · May 31, 2026
Goldman Sachs ETF Trust, not summed
|
196,432 | ||
| 11.2 |
Goldman Sachs MarketBeta U.S. 1000 Equity ETF
Fund
S000075322 · Registered fund · May 31, 2026
Goldman Sachs ETF Trust II, not summed
|
4,934 | ||
| 11.3 |
Goldman Sachs MarketBeta(R) Russell 1000 Growth Equity ETF
Fund
S000083005 · Registered fund · May 31, 2026
Goldman Sachs ETF Trust, not summed
|
2,012 | ||
| 11.4 |
Goldman Sachs Absolute Return Tracker Fund
Fund
S000020314 · Registered fund · Jun 30, 2026
GOLDMAN SACHS TRUST, not summed
|
666 | ||
| 12 |
PRICE T ROWE ASSOCIATES INC /MD/
13F
CIK 80255 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
3,893,820 | ||
| 12.1 |
T. Rowe Price Health Sciences Fund, Inc.
Fund
S000002088 · Registered fund · Jun 30, 2026
T. ROWE PRICE HEALTH SCIENCES FUND, INC., not summed
|
2,531,231 | ||
| 12.2 |
T. Rowe Price Diversified Mid-Cap Growth Fund, Inc.
Fund
S000002073 · Registered fund · Jun 30, 2026
T. ROWE PRICE DIVERSIFIED MID-CAP GROWTH FUND, INC., not summed
|
170,544 | ||
| 12.3 |
T. Rowe Price Health Sciences Portfolio
Fund
S000002083 · Registered fund · Jun 30, 2026
T. ROWE PRICE EQUITY SERIES, INC., not summed
|
158,867 | ||
| 12.4 |
T. Rowe Price Extended Equity Market Index Fund
Fund
S000002090 · Registered fund · Jun 30, 2026
T. ROWE PRICE INDEX TRUST, INC., not summed
|
22,288 | ||
| 12.5 |
T. Rowe Price Mid-Cap Index Fund
Fund
S000051326 · Registered fund · Jun 30, 2026
T. ROWE PRICE INDEX TRUST, INC., not summed
|
11,924 | ||
| 13 |
VANGUARD TOTAL STOCK MARKET INDEX FUND
Fund
S000002848 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
3,707,548 | ||
| 14 |
Point72 Asset Management, L.P.
13F
CIK 1603466 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
3,697,803 | ||
| 15 |
GEODE CAPITAL MANAGEMENT, LLC
13F
CIK 1214717 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
3,427,263 | ||
| 16 |
|
3,123,603 | ||
| 17 |
VANGUARD SMALL-CAP INDEX FUND
Fund
S000002845 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
2,667,317 | ||
| 18 |
MILLENNIUM MANAGEMENT LLC
13F
CIK 1273087 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
2,349,081 | ||
| 19 |
ADAGE CAPITAL PARTNERS GP, L.L.C.
13F
CIK 1165408 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,989,591 | ||
| 20 |
Balyasny Asset Management L.P.
13F
CIK 1218710 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,904,254 | ||
| 21 |
VANGUARD EXTENDED MARKET INDEX FUND
Fund
S000002841 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
1,778,361 | ||
| 22 |
CITADEL ADVISORS LLC
13F
CIK 1423053 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,725,716 | ||
| 23 |
Aberdeen Group plc
13F
CIK 1716774 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,693,626 | ||
| 24 |
VANGUARD SMALL-CAP VALUE INDEX FUND
Fund
S000002847 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
1,691,382 | ||
| 25 |
Squarepoint Ops LLC
13F
CIK 1642575 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,590,736 | ||
| 26 |
MORGAN STANLEY
13F
CIK 895421 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,450,019 | ||
| 26.1 |
E*TRADE No Fee Total Market Index Fund
Fund
S000090722 · Registered fund · Jul 31, 2026
E Trade Trust, not summed
|
408 | ||
| 27 |
NORGES BANK
13F
CIK 1374170 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,382,519 | ||
| 28 |
Logos Global Management LP
13F
CIK 1792126 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,350,000 | ||
| 29 |
Octagon Capital Advisors LP
13F
CIK 1839435 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,250,000 | ||
| 30 |
D. E. Shaw & Co., Inc.
13F
CIK 1009207 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,243,556 | ||
| 31 |
Kynam Capital Management, LP
13F
CIK 1907884 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,200,000 | ||
| 32 |
Pictet Asset Management Holding SA
13F
CIK 1993888 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,134,299 | ||
| 33 |
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
13F
CIK 884546 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
976,851 | ||
| 33.1 |
Schwab U.S. Mid-Cap ETF
Fund
S000026635 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
|
416,668 | ||
| 33.2 |
Schwab U.S. Large-Cap ETF
Fund
S000026632 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
|
175,386 | ||
| 33.3 |
Schwab U.S. Broad Market ETF
Fund
S000026631 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
|
93,014 | ||
| 33.4 |
Schwab Total Stock Market Index Fund
Fund
S000005913 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
|
90,467 | ||
| 33.5 |
Schwab U.S. Large-Cap Value ETF
Fund
S000026634 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
|
79,133 | ||
| 34 |
VANGUARD FIDUCIARY TRUST CO
13F
CIK 933478 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
966,585 | ||
| 35 |
APEIRON CAPITAL Ltd
13F
CIK 1843111 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
961,866 | ||
| 36 |
BANK OF AMERICA CORP /DE/
13F
CIK 70858 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
864,983 | ||
| 37 |
SCHRODER INVESTMENT MANAGEMENT GROUP
13F
CIK 1086619 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
835,963 | ||
| 38 |
Rock Springs Capital Management LP
13F
CIK 1595725 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
715,000 | ||
| 39 |
|
714,000 | ||
| 40 |
TWO SIGMA INVESTMENTS, LP
13F
CIK 1179392 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
696,714 | ||
| 41 |
NORTHERN TRUST CORP
13F
CIK 73124 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
633,794 | ||
| 41.1 |
FlexShares Morningstar US Market Factor Tilt Index Fund
Fund
S000033312 · Registered fund · Jul 31, 2026
FlexShares Trust, not summed
|
5,281 | ||
| 42 |
abrdn Life Sciences Investors
Fund
· Registered fund · Jun 30, 2026
abrdn Life Sciences Investors, not summed
|
630,806 | ||
| 42.1 |
abrdn Healthcare Investors
Fund
· Registered fund · Jun 30, 2026
abrdn Healthcare Investors, not summed
|
1,062,820 | ||
| 42.2 |
BlackRock Health Sciences Term Trust
Fund
· Registered fund · Jun 30, 2026
BlackRock Health Sciences Term Trust, not summed
|
63,310 | ||
| 42.3 |
BlackRock Health Sciences Trust
Fund
· Registered fund · Jun 30, 2026
BlackRock Health Sciences Trust, not summed
|
25,126 | ||
| 43 |
MARSHALL WACE, LLP
13F
CIK 1318757 · Exempt reporting adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
577,190 | ||
| 44 |
AQR CAPITAL MANAGEMENT LLC
13F
CIK 1167557 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
542,178 | ||
| 45 |
Candriam S.C.A.
13F
CIK 1537014 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
532,432 | ||
| 46 |
SUSQUEHANNA INTERNATIONAL GROUP, LLP
13F
CIK 1446194 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
521,339 | ||
| 47 |
Elmind Capital, LP
13F
CIK 2052213 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
493,820 | ||
| 48 |
VANGUARD HEALTH CARE INDEX FUND
Fund
S000004450 · Registered fund · May 31, 2026
VANGUARD WORLD FUND, not summed
|
462,390 | ||
| 49 |
WELLINGTON MANAGEMENT GROUP LLP
13F
CIK 902219 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
441,934 | ||
| 50 |
Bank of New York Mellon Corp
13F
CIK 1390777 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
431,299 | ||
| 50.1 |
BNY Mellon US Mid Cap Core Equity ETF
Fund
S000067261 · Registered fund · Jul 31, 2026
BNY Mellon ETF Trust, not summed
|
19,071 |
45 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 316 holders
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Key facts
CIK
1599298
CUSIP
86627T108
13F (30d)
24 filings
24 filers
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