SMMT — Summit Therapeutics Inc. Common Stock price, chart and key statistics

Price data

Price

$16.76

Change YTD

-4.17%

Next earnings

Oct 19, 2026

Market cap

13.4B2017-03 817.1M2026-10 13.4B+1536.4% over the window

Enterprise value

12.7B

Shares outstanding

797.7M2017-01 61.5M2026-06 797.7M+1196.1% over the window

52W low

$12.07

52W high

$29.23

From 52W high

-42.66%

From 52W low

+38.86%

52W range

27%

Beta

-1.23

Volume

Rel volume

1.29×

30D volume

7.3M

30D $ vol

118.9M

Insider trading

Insider net 1WNo open-market insider purchase or sale with a transaction date in the last 7 days, as filed on Form 4.

none

Insider net 1MNo open-market insider purchase or sale with a transaction date in the last 30 days, as filed on Form 4.

none

Insider net 3MNo open-market insider purchase or sale with a transaction date in the last 91 days, as filed on Form 4.

none

Insider net 1Y5 insider-days of buying ($103.6M) and 0 of selling (no priced lot) in the last 365 days, by transaction date, open-market transactions only — awards, exercises, tax withholding and employee-plan purchases are not counted. A Form 4 is filed within two business days of the trade, so the newest days may not be in yet.

+$103.6M

Form 4 transactions by trade date, as filed; latest on file 2026-06-12.

Fundamentals

EPS (ttm)

-$1.122017-01 -$0.472026-06 -$1.12+139.6% over the window

FCF (ttm)

-459.8M2019-01 -35.3M2026-06 -459.8M+1204.0% over the window

FCF/share

-$0.582019-01 -$2.052026-06 -$0.58-71.8% over the window

Book value/share

$0.792017-01 -$0.072026-06 $0.79-1213.2% over the window

ROE

-135.89%2019-01 18.9%2026-06 -135.9%-820.0% over the window

ROA

-113.81%2017-01 -60.6%2026-06 -113.8%+87.7% over the window

Current ratio

6.962017-01 3.062026-06 6.96+127.4% over the window

Growth (CAGR, ttm) · 10Y

Shares

+7.40%2025-06-30 → 2026-06-30742.8M → 797.7M (+7.4% total)+4.57%2023-06-30 → 2026-06-30697.7M → 797.7M (+14.3% total)+52.30%2021-06-30 → 2026-06-3097.4M → 797.7M (+719.2% total)+31.29%2017-01-31 → 2026-06-3061.5M → 797.7M (+1196.1% total)

Per-share growth (CAGR, ttm) · 10Y

Book value/share

+126.24%2025-06-30 → 2026-06-30$0.35 → $0.79 (+126.1% total)+66.37%2023-06-30 → 2026-06-30$0.17 → $0.79 (+360.7% total)-8.43%2021-06-30 → 2026-06-30$1.23 → $0.79 (-35.6% total)n/a

Price

-19.71%2025-10-02 → 2026-10-02$20.87 → $16.76 (-19.7% total)Price appreciation from split-adjusted daily closes, excluding dividends; endpoints are exact trading-day anniversaries of the latest close.+111.52%2023-10-02 → 2026-10-02$1.77 → $16.76 (+846.9% total)Price appreciation from split-adjusted daily closes, excluding dividends; endpoints are exact trading-day anniversaries of the latest close.+26.80%2021-10-01 → 2026-10-02$5.11 → $16.76 (+228.0% total)Price appreciation from split-adjusted daily closes, excluding dividends; endpoints are exact trading-day anniversaries of the latest close.+6.34%2016-09-30 → 2026-10-02$9.06 → $16.76 (+84.9% total)Price appreciation from split-adjusted daily closes, excluding dividends; endpoints are exact trading-day anniversaries of the latest close.

Total return

-19.71%2025-10-02 → 2026-10-02$20.87 → $16.76 (-19.7% total)Total return with dividends reinvested (adjusted daily closes); endpoints are exact trading-day anniversaries of the latest close. The gap against the Price row is the dividend contribution.+111.52%2023-10-02 → 2026-10-02$1.77 → $16.76 (+846.9% total)Total return with dividends reinvested (adjusted daily closes); endpoints are exact trading-day anniversaries of the latest close. The gap against the Price row is the dividend contribution.+26.80%2021-10-01 → 2026-10-02$5.11 → $16.76 (+228.0% total)Total return with dividends reinvested (adjusted daily closes); endpoints are exact trading-day anniversaries of the latest close. The gap against the Price row is the dividend contribution.+6.34%2016-09-30 → 2026-10-02$9.06 → $16.76 (+84.9% total)Total return with dividends reinvested (adjusted daily closes); endpoints are exact trading-day anniversaries of the latest close. The gap against the Price row is the dividend contribution.

Fundamentals end at the last reported quarter; price and total return end at the latest close.

Valuation

P/E (ttm)Price ÷ TTM diluted EPS. Net income carries everything below the operating line, including one-off gains. Negative when the trailing year lost money.

-15.0×2017-03 -28.682026-10 -15.62-45.5% over the window

Fwd P/E

-13.2×

P/B (mrq)Market cap ÷ stockholders' equity at the most recent quarter end.

21.2×2017-03 -187.132026-10 21.22-111.3% over the window

FCF yield (ttm)TTM free cash flow ÷ market cap — the inverse of P/FCF.

-3.44%2019-01 -46.9%2026-06 -4.0%-91.6% over the window

Buyback yield (realized, 1y)1 − shares_at(2026-06-30) ÷ shares_at(2025-06-30) = 1 − 797.7M ÷ 742.8M. Point-in-time share counts from the company's own SEC filings (the same count at both ends), published only when the cash flow statement shows repurchases inside that window. A falling price can't inflate it; negative means net dilution.

-7.40%

Shareholder yield (realized, 1y)Buyback leg + dividend leg: shares retired over the year (-7.40%) + dividends paid over that year ($0) ÷ market_cap_at(2025-06-30) ($15.8B). Both legs are measured against the start of the window, so a payout can't shrink its own denominator.

-7.40%

Buyback yield (cash, ttm)Buybacks net of issuance over the trailing twelve months ($-227.4M) ÷ today's market cap ($13.4B). Dollars SPENT over what the company is worth NOW — a stock that fell after buying reads high.

-1.70%2017-01 0.0%2026-06 -2.0%

Shareholder yield (cash, ttm)(TTM buybacks net of issuance $-227.4M + TTM dividends $0) ÷ today's market cap ($13.4B). Same caveat as the cash buyback yield.

-1.70%2017-01 0.0%2026-06 -2.0%

Vs own 10Y history

P/S

98th

P/B

69th