Insider filings
Summit Therapeutics Inc. (SMMT)
About Summit Therapeutics Inc.
from the company's filings and listing- Exchange
- NASDAQ
- Sector
- Healthcare
- Industry
- Biotechnology
- Chief executive
- Robert W. Duggan
- Employees
- 265
- Listed since
- Mar 5, 2015
- Market value
- $14.0B
- Price to earnings
- -
- Earnings per share
- -$1.10
- Dividend yield
- -
Earnings
6 reported quarters · next on Oct 19, 2026| Quarter | EPS | EPS expected | Revenue | Revenue expected | Result |
|---|---|---|---|---|---|
| Q2 FY2026reported Jul 23, 2026 | -$0.28 | -$0.27 | n/a | $114K | EPS missRevenue n/a |
| Q1 FY2026reported Apr 30, 2026 | -$0.24 | -$0.33 | n/a | $54K | EPS beatRevenue n/a |
| Q4 FY2025reported Feb 23, 2026 | -$0.29 | -$0.10 | n/a | $56.8M | EPS missRevenue n/a |
| Oct 20, 2025 | -$0.31 | -$0.18 | n/a | $76.5M | EPS missRevenue n/a |
| Q3 FY2025reported Aug 11, 2025 | -$0.76 | -$0.09 | n/a | n/a | EPS missRevenue n/a |
| Q1 FY2025reported May 1, 2025 | -$0.09 | -$0.09 | n/a | n/a | EPS beatRevenue n/a |
Actual against the consensus estimate at the time. A flag marks a beat or a miss of more than 1.5% either way; inside that band the quarter is in line. A flag marked GAAP compares a GAAP figure the company reported with an adjusted consensus, two different measures, so a one-time gain or charge can move it either way; basis unverified means we could not classify the reported figure. A flag reads n/a only when a number is missing. An estimate is a forecast made by analysts, not a company target.
Executive pay
as filed for 2025 · proxy filed Apr 17, 2026| Executive | Salary | Stock awards | Other | Total |
|---|---|---|---|---|
| Manmeet SoniChief Operating Officer, Chief Financial Officer and D | $617K | $0 | $248.5M | $249.1M |
| Mahkam ZanganehCo-Chief Executive Officer, President and Director | $617K | $0 | $245.4M | $246.0M |
| Robert W. DugganCo-Chief Executive Officer and Chairman | $0 | $0 | $172K | $172K |
The summary compensation table from the 2025 proxy statement, current executives only. Read the filing
Institutional holders
13F positions as of Jun 30, 2026| Holder | Value | Shares | Change | Of company |
|---|---|---|---|---|
| Baker Bros. Advisors LP | $477.7M | 32,786,348 | -9.9% | 4.21% |
| FMR LLC | $146.3M | 10,043,947 | -7.5% | 1.29% |
| State Street Corp | $139.0M | 9,536,796 | +35.7% | 1.23% |
| Blackrock, Inc. | $138.8M | 9,529,041 | -1.3% | 1.22% |
| Vanguard Capital Management LLC | $83.6M | 5,734,484 | +0.4% | 0.74% |
| UBS Group AG | $76.3M | 5,233,798 | +42.2% | 0.67% |
| Vanguard Portfolio Management LLC | $73.5M | 5,042,190 | -3.7% | 0.65% |
| Goldman Sachs Group Inc | $65.8M | 4,513,399 | +1352.5% | 0.58% |
| Price T Rowe Associates Inc | $56.7M | 3,893,820 | -53.0% | 0.50% |
| Point72 Asset Management, L.P. | $53.9M | 3,697,803 | +371.5% | 0.48% |
| Geode Capital Management, LLC | $50.0M | 3,427,263 | +3.4% | 0.44% |
| Millennium Management LLC | $34.2M | 2,349,081 | +1760.3% | 0.30% |
A 13F reports long US equity positions 45 days after the quarter ends, so these are positions as they stood on Jun 30, 2026. For a manager's whole book see the fund directory.
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Open-market insider trades
15 filings of 195 on record| Insider | Action | Shares | Price | Value | Trade date | Delay |
|---|---|---|---|---|---|---|
| Robert W. DugganCo-Chief Executive Officer | Bought | 3,810,000 | $13.12 | $50.0M | Jun 12, 2026 | 0d |
| Mahkam ZanganehCo-Chief Executive Officer | Bought | 3,810,000 | $13.12 | $50.0M | Jun 12, 2026 | 0d |
| Manmeet Singh SoniCOO and CFO | Bought | 25,000 | $14.43 | $361K | Jun 4, 2026 | 0d |
| Mahkam ZanganehCo-Chief Executive Officer | Bought | 100,000 | $14.60 | $1.5M | Jun 4, 2026 | 0d |
| Robert W. DugganCo-Chief Executive Officer | Bought | 100,000 | $14.60 | $1.5M | Jun 4, 2026 | 0d |
| Robert W. DugganCo-Chief Executive Officer | Bought | 26,680 | $18.74 | $500K | Oct 21, 2025 | 2d |
| Yu XiaDirector | Bought | 533,617 | $18.74 | $10.0M | Oct 21, 2025 | 2d |
| Mahkam ZanganehCo-Chief Executive Officer | Bought | 26,680 | $18.74 | $500K | Oct 21, 2025 | 2d |
| Mahkam ZanganehCo-Chief Executive Officer | Bought | 5,000 | $18.07 | $90K | Sep 11, 2025 | 0d |
| Robert W. DugganCo-Chief Executive Officer | Bought | 333,394 | $17.68 | $5.9M | Sep 10, 2025 | 1d |
| Mahkam ZanganehCo-Chief Executive Officer | Bought | 333,394 | $17.68 | $5.9M | Sep 10, 2025 | 1d |
| Robert W. DugganCo-Chief Executive Officer | Bought | 5,000 | $18.07 | $90K | Sep 11, 2025 | 0d |
| Mahkam ZanganehChief Executive Officer | Bought · 3 lines | 80,321 | $3.72 | $299K | Mar 27, 2024 | 0d |
| Ankur DhingraChief Financial Officer | Bought | 100,000 | $3.75 | $375K | Mar 26, 2024 | 1d |
| Mahkam ZanganehChief Executive Officer | Bought | 30,000 | $3.75 | $113K | Mar 26, 2024 | 1d |
One row is one filing. A filing that reported its trade in several tranches is summed, priced at the weighted average, and marked with its line count.
Awards, option exercises and gifts (20)
| Insider | Event | Shares | Date |
|---|---|---|---|
| Bhaskar AnandChief Accounting Officer | Stock award | 30,000 | Jan 8, 2026 |
| Alessandra CesanoDirector | Stock award | 38,219 | Jan 2, 2026 |
| Mostafa RonaghiDirector | Stock award | 35,000 | Jan 2, 2026 |
| Kenneth A. ClarkDirector | Stock award | 52,796 | Jan 2, 2026 |
| Robert F. BoothDirector | Stock award | 42,180 | Jan 2, 2026 |
| Jeff HuberDirector | Stock award | 44,885 | Jan 2, 2026 |
| Robert W. DugganCo-Chief Executive Officer | Stock award | 11,232 | Jan 2, 2026 |
| Yu XiaDirector | Stock award | 35,000 | Jan 2, 2026 |
| Mahkam ZanganehCo-Chief Executive Officer | Stock award | 11,232 | Jan 2, 2026 |
| Robert W. DugganCo-Chief Executive Officer | Stock award | 14,247,597 | Oct 21, 2025 |
| Manmeet Singh SoniCOO and CFO | Stock award | 53,361 | Oct 21, 2025 |
| Bhaskar AnandChief Accounting Officer | Stock award | 26,680 | Oct 21, 2025 |
| Mahkam ZanganehCo-Chief Executive Officer | Stock award | 14,247,597 | Oct 21, 2025 |
| Bhaskar AnandChief Accounting Officer | Stock award | 50,000 | Sep 18, 2025 |
| Mahkam ZanganehCo-Chief Executive Officer | Option exercise | 74,545 | May 30, 2025 |
| Robert W. DugganCo-Chief Executive Officer | Option exercise | 74,545 | May 30, 2025 |
| Mahkam ZanganehCo-Chief Executive Officer | Stock award | 11,030,558 | Apr 29, 2025 |
| Robert W. DugganCo-Chief Executive Officer | Stock award | 11,030,558 | Apr 29, 2025 |
| Bhaskar AnandChief Accounting Officer | Stock award | 675,000 | Apr 29, 2025 |
| Manmeet Singh SoniCOO and CFO | Stock award | 11,200,000 | Apr 29, 2025 |
Awards, option exercises, shares withheld to cover tax and gifts all file on the same form as a purchase or a sale. None of them is a decision to trade, so they sit here rather than beside the ones that are.
Questions
Are insiders buying or selling SMMT?
Across the 15 most recent open-market filings shown here, 15 were purchases and 0 were sales.
How quickly are SMMT trades disclosed?
Insider filings on this page reached the public a median of 0 days after the transaction, against the two business days Form 4 allows.
How to read a Form 4
A DECISION THE INSIDER MADE
COMPENSATION PLUMBING
Congress rows disclose a value range rather than an exact amount, and the STOCK Act allows up to 45 days to report. Full sourcing and the limits of this data are on the methodology page. A filing is a record of a transaction, not a signal, and nothing here is investment advice.
Data as of Sep 10, 2026.