Summit Therapeutics Inc SMMT

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Summit Therapeutics Inc. - Common Stock · Company · Nasdaq

Paper trade (simulated — no real money)

Fill: USD 13.6600 · FX 1 USD = 1.288650 SGD · about SGD 17.6030 per unit

Sign in to place simulated trades. USD fills are converted into the SGD portfolio at the displayed rate.

Announcement types: (default: consequential filings)
Results & current reports
Capital markets
Ownership & governance

USD closing-price chart (daily close from yfinance · Last year)

USD 27.45 → 13.66 · -50.2%
29.32021.18513.050 1,2,3,4 5 6,7 8 9 10 11 12 13,14 15 16,17 18,19 20 21 22 23 24 25 26 27,28,29,30 Jul 25Oct 25Jan 26Apr 26Jul 26

Numbered dotted lines mark the filtered filings under Announcement Events below.

Price & SEC Filing History 26 Jul 2025 — 27 Jul 2026 (Last year)

Daily Nasdaq prices are sourced from yfinance. Yellow highlighting marks an intraday rise or a gap up between adjacent trading sessions. SEC acceptance times are converted to US Eastern time: pre-market filings appear below that day’s OHLCV row; filings accepted after the 09:30 ET open appear above it. The SEC does not publish an exact first-public-availability timestamp, so acceptance time is the best available proxy.

No data yet
Weekend
Weekend
13.7200 14.4200 13.2000 13.6600 8,153,200
30 · 10-Q After-hours · 16:08 ET 10-Q ↗ 29 · 8-K After-hours · 16:07 ET 8-K ↗ 28 · 8-K After-hours · 16:34 ET 8-K ↗ 27 · 424B5 After-hours · 16:33 ET 424B5 ↗
14.7300 15.2300 14.5800 14.9800 3,283,500
15.1800 15.7050 14.6500 14.7400 4,255,900
26 · 8-K Pre-market · 07:10 ET 8-K ↗
13.6700 14.7150 13.6300 14.6300 3,925,500
13.7400 14.3500 13.4900 13.5000 2,706,500
Weekend
Weekend
13.4600 14.0750 13.3600 13.8100 2,841,100
14.9000 15.0200 13.5350 13.7600 3,754,200
15.6200 15.6200 14.9400 15.0700 2,302,900
15.3450 15.6300 15.2050 15.4700 3,037,000
15.1100 15.4750 14.7900 15.3000 3,391,200
Weekend
Weekend
15.5000 15.5300 14.8600 15.2500 2,724,800
15.6000 15.8800 15.4500 15.4800 2,366,000
15.7500 15.8800 15.3900 15.6900 2,775,800
15.9700 16.0500 15.4600 15.8800 2,798,500
15.5000 15.9400 15.3000 15.9300 3,922,100
Weekend
Weekend
No trading
14.5500 15.6990 14.5500 15.4200 7,100,400
14.5900 14.8000 14.3050 14.3800 3,908,400
14.3200 14.8900 14.3100 14.5700 5,320,500
14.2100 14.5760 14.1150 14.3200 5,979,300
Weekend
Weekend
14.0000 14.2500 13.8800 14.0100 4,183,400
14.2500 14.5300 14.0500 14.1800 4,818,000
14.2500 14.7550 14.1700 14.2500 6,770,000
13.9300 14.8100 13.9300 14.2500 5,963,100
13.7800 14.4000 13.7000 14.2800 7,392,700
Weekend
Weekend
No trading
14.3800 14.6000 13.5600 13.7500 8,723,200
13.9900 14.5000 13.8300 14.0700 5,961,600
14.1300 14.2400 13.7500 13.8800 5,505,400
14.4410 14.5800 13.7000 14.1300 8,529,400
Weekend
Weekend
25 · 8-K After-hours · 16:11 ET 8-K ↗
13.0000 14.1750 12.9200 14.0100 9,844,900
13.6500 13.6900 13.0500 13.0800 9,289,800
24 · 8-K Pre-market · 07:44 ET 8-K ↗
13.1180 14.0500 12.5500 13.0500 8,628,100
23 · 424B5 Next filing day · accepted 09 Jun, 19:37 ET 424B5 ↗ 22 · S-3ASR After-hours · 16:33 ET S-3ASR ↗
14.4700 14.6800 14.0200 14.2900 5,034,900
14.9400 14.9800 13.8100 14.1100 5,493,100
Weekend
Weekend
15.2400 15.3500 14.6550 14.7700 6,516,700
14.9250 15.2100 14.4150 14.8400 5,414,600
14.7500 15.1050 14.2700 15.0700 4,371,800
21 · 8-K Pre-market · 08:01 ET 8-K ↗
15.5300 15.5450 14.1700 14.8600 10,043,900
16.6950 16.8400 15.1700 15.7100 19,587,400
20 · 8-K Pre-market · 06:57 ET 8-K ↗
Weekend
Weekend
17.8700 18.5050 17.3600 17.5400 7,205,400
17.2400 17.8800 16.3200 17.4100 4,361,300
17.1800 17.5050 17.0200 17.3600 2,209,100
16.5800 17.1300 15.8900 17.0000 5,257,400
No trading
Weekend
Weekend
16.4800 17.4000 16.1320 16.6200 6,890,400
17.8600 17.9600 17.1850 17.4700 3,373,900
16.1300 17.9300 16.1300 17.8900 4,630,100
15.8000 16.0100 15.5500 15.8500 2,644,200
16.8700 16.9660 15.5500 16.0200 4,421,300
Weekend
Weekend
17.7800 17.9470 16.8350 16.8700 2,673,100
18.5400 18.8100 17.7860 18.1400 1,971,800
18.8100 19.0800 18.4300 18.7900 2,207,600
18.3000 19.0800 18.2900 18.9500 2,238,400
18.2100 19.4150 18.1500 18.6600 4,233,600
Weekend
Weekend
17.4600 18.1500 17.0610 18.0800 3,878,900
17.9200 18.1500 16.8300 17.1500 2,732,400
17.7200 18.1900 17.2300 17.8500 3,859,500
16.9800 17.7650 16.5500 17.5400 4,487,000
16.3300 17.4200 16.0000 16.9800 6,470,500
Weekend
Weekend
16.0200 16.8100 15.1400 16.1150 18,118,800
19 · 10-Q After-hours · 17:00 ET 10-Q ↗ 18 · 8-K After-hours · 16:40 ET 8-K ↗
20.9400 22.3800 20.8520 21.4600 5,658,200
21.6100 21.6100 20.5500 20.8300 2,760,300
22.0200 22.3950 21.2500 21.2600 2,950,100
22.0800 22.5500 21.8100 22.1200 3,708,600
Weekend
Weekend
22.3000 22.3550 21.4500 22.0800 5,254,000
23.8300 24.7200 22.1400 22.2700 4,971,400
26.6400 26.7700 23.4300 24.5800 8,248,900
25.2200 29.2300 24.9200 26.3800 10,194,500
24.5000 25.4400 23.7400 25.1200 3,371,500
Weekend
Weekend
17 · DEFA14A After-hours · 17:00 ET DEFA14A ↗ 16 · DEF 14A After-hours · 16:12 ET DEF 14A ↗
24.5500 25.4800 24.0600 25.1500 4,899,800
21.2600 24.5350 21.2600 24.4200 6,793,300
21.5000 22.1800 21.0300 21.1200 3,537,500
20.1100 21.0700 20.1000 20.8500 2,325,000
19.6000 20.5100 19.5250 20.0300 2,029,200
Weekend
Weekend
19.3100 19.8900 19.1500 19.6700 2,520,900
18.9700 19.5500 18.8600 19.3100 1,868,300
19.9900 20.1000 18.7500 18.8100 2,088,800
18.5600 19.3000 18.3800 19.2200 1,503,600
15 · PRE 14A After-hours · 16:28 ET PRE 14A ↗
19.1900 19.4450 18.5600 18.6900 1,947,400
Weekend
Weekend
No trading
18.4000 19.8500 18.4000 19.3800 3,077,300
19.1700 19.5900 18.5700 18.9200 2,374,900
17.3000 19.0050 17.2000 18.9600 3,935,400
16.7400 17.5400 16.7400 16.9800 2,688,600
Weekend
Weekend
17.4000 17.5100 16.3800 16.5800 2,080,400
17.4700 18.2400 17.1450 17.2600 4,343,900
15.9300 17.9850 15.8400 17.9400 5,269,300
15.4300 16.1300 15.3600 15.5400 2,108,000
15.7300 16.2100 15.4700 15.6000 2,158,000
Weekend
Weekend
15.7300 16.2800 15.3800 15.5100 3,872,800
15.3900 15.8300 15.2500 15.7200 1,610,300
15.6600 15.8350 15.3800 15.6000 1,743,800
16.1800 16.3350 15.8050 15.8500 2,012,800
16.0700 16.4900 15.7100 16.1750 2,108,600
Weekend
Weekend
15.7000 16.7200 15.6600 16.1200 2,655,800
15.9700 16.1600 15.4500 15.4600 1,703,900
16.1800 16.5400 16.0000 16.0800 1,823,000
15.8700 16.6400 15.8700 16.3300 2,974,200
15.0000 15.8800 14.9700 15.7200 2,720,200
Weekend
Weekend
14.7300 15.3500 14.6000 15.1100 2,307,400
15.0700 15.1500 14.6700 14.9400 2,431,400
15.2900 15.4200 14.9300 15.3800 2,156,800
15.5400 15.7900 15.0800 15.1100 2,280,300
16.0000 16.4050 15.8500 16.1900 1,866,900
Weekend
Weekend
15.6100 16.6100 15.5600 16.5900 2,401,200
15.7200 15.8150 15.3600 15.8000 1,292,200
16.1700 16.5100 15.6400 15.6800 1,529,100
15.7800 16.8000 15.5000 16.1200 2,619,200
14 · 10-K After-hours · 16:10 ET 10-K ↗ 13 · 8-K After-hours · 16:07 ET 8-K ↗
15.7500 16.2700 15.7200 16.0900 2,093,000
Weekend
Weekend
15.6800 16.2100 15.6600 15.9400 2,446,700
15.6700 15.8900 15.3900 15.8700 1,234,700
15.5700 16.1600 15.4900 15.8800 1,488,800
14.8500 15.9900 14.8500 15.6800 1,921,100
No trading
Weekend
Weekend
14.7400 15.5700 14.6700 14.9600 2,165,400
15.3100 15.3850 14.5800 14.6300 2,294,100
15.2700 15.5100 14.6400 15.2500 2,673,100
15.2200 15.7700 15.0300 15.2500 1,932,300
15.0000 15.0800 14.6560 14.9700 1,935,800
Weekend
Weekend
14.1200 15.1100 14.0400 14.9900 2,708,900
14.1000 14.4100 13.8300 13.8500 3,839,900
14.5800 14.7700 14.1100 14.4200 3,709,800
14.1300 14.7670 14.1300 14.5900 3,508,500
14.2100 14.5650 14.0300 14.0600 2,725,200
Weekend
Weekend
15.2000 15.3100 14.4300 14.4800 4,142,200
15.7700 16.3900 15.1700 15.4000 3,446,600
12 · 8-K Pre-market · 07:35 ET 8-K ↗
15.8800 15.8800 15.4500 15.6400 2,539,100
16.5400 16.6500 15.8900 15.9000 2,614,800
16.2900 16.7800 16.0800 16.5600 2,253,200
Weekend
Weekend
17.1400 17.5800 16.4650 16.4900 3,083,600
16.9200 17.9800 16.8700 17.3700 3,546,000
16.1900 17.0200 15.6630 16.8500 3,853,700
16.6500 16.7850 16.0300 16.0600 3,211,000
No trading
Weekend
Weekend
17.2600 17.4800 17.0250 17.0400 2,027,200
17.6500 17.8600 17.2100 17.2700 2,673,200
16.8100 17.7300 16.7650 17.6500 2,849,700
17.1600 17.5000 16.2700 16.8100 4,088,300
19.8550 19.9000 16.4700 17.0400 8,794,900
11 · 8-K Pre-market · 07:43 ET 8-K ↗
Weekend
Weekend
19.0000 20.2000 18.9800 19.6800 2,826,200
18.7900 19.2400 18.5480 18.8300 1,892,100
18.9800 19.5100 18.6600 19.0100 2,656,700
17.5000 19.0000 17.4600 18.6600 4,115,800
17.4900 17.7400 17.2900 17.4400 2,033,000
Weekend
Weekend
17.7500 17.7500 17.3000 17.5200 1,417,500
No trading
17.3600 17.5900 17.1500 17.4900 1,645,400
17.7500 17.8400 17.4100 17.4900 1,458,900
17.9100 18.1500 17.7500 17.7800 1,880,700
Weekend
Weekend
18.3200 18.3600 18.0500 18.1400 1,197,300
No trading
18.1000 18.5290 17.9400 18.3800 1,265,500
17.9800 18.2600 17.7000 18.1200 1,605,700
17.8500 18.3200 17.6700 18.1500 3,223,200
Weekend
Weekend
17.1600 17.9000 17.1450 17.8200 3,595,700
17.2500 17.3800 16.9800 17.0400 1,558,100
17.6500 17.8500 16.9900 17.0100 2,683,400
17.2900 17.5150 16.8700 17.2300 2,018,000
17.7000 17.7600 17.2350 17.3800 2,387,400
Weekend
Weekend
17.9700 18.0250 17.3900 17.5700 1,590,800
17.8500 18.2200 17.7550 17.9900 1,648,700
17.0200 18.0850 16.8100 17.9400 2,974,100
18.3300 18.5300 17.0100 17.0200 4,013,100
18.4400 18.7400 18.1500 18.6250 3,176,600
Weekend
Weekend
18.8800 19.1000 18.0800 18.3100 2,435,500
18.2900 18.9900 18.1900 18.8100 2,782,200
17.3900 19.0500 17.3200 18.3700 4,313,600
17.1900 17.5400 16.7600 17.2500 2,696,300
17.5500 17.8300 17.2450 17.2600 1,895,800
Weekend
Weekend
18.0200 18.1700 17.6600 17.8900 1,388,900
No trading
17.7000 18.0000 17.4550 17.8200 1,399,000
17.8000 17.9800 17.2100 17.6400 1,780,800
16.2300 17.9500 16.2300 17.8400 3,330,100
Weekend
Weekend
16.4000 16.5750 15.6200 16.1900 2,768,000
16.8600 17.2500 15.8800 16.4500 2,700,300
16.8000 17.0200 16.3200 16.5600 1,939,200
16.7100 17.1800 16.4500 16.8100 3,088,800
17.7700 18.0000 16.9300 16.9500 2,606,100
Weekend
Weekend
17.7400 18.5700 17.7400 18.0300 1,445,000
18.7100 18.9000 18.2400 18.2600 1,835,400
19.2700 19.4000 18.6500 18.8300 1,969,600
18.2900 19.2000 18.1600 19.1600 2,356,200
18.3000 18.5300 17.8400 18.3000 2,075,100
Weekend
Weekend
18.1900 18.3100 17.5500 18.1800 2,685,100
10 · 8-K Pre-market · 09:23 ET 8-K ↗
18.0400 18.9900 17.9000 18.4500 2,247,700
17.5800 18.1700 17.3700 18.0700 4,948,100
17.7800 18.1250 17.3700 17.4900 3,433,800
18.7400 19.1800 18.2000 18.2200 2,332,800
Weekend
Weekend
18.7000 19.0000 18.4900 18.9100 2,490,500
18.6600 19.0600 18.4300 18.6400 1,741,800
9 · S-3ASR After-hours · 17:10 ET S-3ASR ↗
19.3400 19.3400 18.3800 18.6600 3,860,600
19.5000 19.7600 19.0330 19.2300 2,104,200
19.8600 20.2400 19.2900 19.4600 3,208,600
Weekend
Weekend
19.8700 20.1200 19.1600 19.2800 3,776,700
19.0600 19.2000 18.4600 18.7500 4,034,000
19.5800 20.5100 18.5500 19.1600 6,114,100
8 · 8-K Pre-market · 08:56 ET 8-K ↗
19.9900 20.1100 18.7100 18.7400 4,719,700
18.8500 20.9800 18.0800 20.0350 9,375,200
7 · 10-Q Pre-market · 07:51 ET 10-Q ↗ 6 · 8-K Pre-market · 07:28 ET 8-K ↗
Weekend
Weekend
21.4400 22.3400 20.1700 20.9900 4,242,500
23.0100 23.6150 21.3500 21.9700 5,783,700
22.2100 23.1740 22.1100 22.6400 2,619,700
22.0900 22.2000 21.2000 21.7500 2,243,100
21.7500 25.4900 21.5500 22.9300 5,565,900
Weekend
Weekend
22.7800 22.7800 21.1450 21.3500 2,652,700
23.1400 23.2000 22.5050 22.6500 1,832,500
22.4800 23.5800 22.3900 23.3400 4,454,900
22.2800 22.6300 21.2850 22.2900 2,488,700
21.6300 22.2500 21.6100 22.1500 2,102,300
Weekend
Weekend
20.8900 21.4900 20.4770 21.4300 2,240,300
20.8400 21.2700 20.6400 20.8700 2,564,300
20.7700 20.9400 20.2900 20.4900 2,288,600
21.0300 21.4400 20.5700 20.6600 2,329,800
20.9900 22.2100 20.5250 21.1600 3,768,400
Weekend
Weekend
20.3000 21.3000 19.9700 20.9500 3,281,300
20.1400 20.3800 19.3700 20.2600 3,048,500
19.2500 20.5500 19.1850 20.5000 5,656,400
19.0200 19.3100 18.8700 19.1500 3,238,100
18.6200 19.2100 18.0600 19.1000 3,721,100
Weekend
Weekend
19.2000 19.9500 18.6950 18.8900 9,197,600
18.2900 19.2900 18.1800 19.2300 5,261,300
17.7600 18.5430 17.7600 18.0900 5,527,900
18.9900 19.1000 18.0000 18.1200 6,697,900
19.0200 19.1300 18.0500 18.9400 4,534,600
Weekend
Weekend
19.8200 19.9700 18.5800 18.9400 6,511,100
17.7800 18.7500 17.7700 18.6000 6,120,500
17.4700 18.1100 16.3100 17.6050 12,616,400
19.5300 19.6400 18.7100 18.8250 6,895,900
21.5300 22.7800 19.1000 19.4450 16,175,200
5 · 8-K Pre-market · 07:45 ET 8-K ↗
Weekend
Weekend
24.2800 26.4500 24.1900 25.9800 3,407,500
23.8800 23.9800 23.0500 23.8000 2,752,100
23.8200 24.2850 23.3000 23.5200 3,121,300
23.1300 24.2000 23.0900 23.8400 1,811,700
No trading
Weekend
Weekend
24.3800 24.4200 23.6300 23.7000 2,545,000
25.0000 25.7580 24.2900 24.4200 2,727,900
26.2300 26.3700 24.2600 24.8050 5,946,300
29.9800 30.0500 26.2550 26.9800 5,817,200
26.2000 26.4900 25.9900 26.2700 2,047,000
Weekend
Weekend
26.0900 27.0000 25.8000 26.2000 2,219,300
25.8000 26.3800 25.6350 26.0100 1,487,500
25.0300 25.9000 24.7750 25.8700 4,471,300
25.6300 25.8300 25.0400 25.3500 2,397,000
26.2700 26.7300 25.3200 26.2900 2,333,600
Weekend
Weekend
26.4900 27.4500 25.8400 26.6900 2,588,000
26.8250 27.6400 26.3750 26.4500 3,351,800
26.4300 27.8400 26.2800 26.8700 5,373,700
27.0550 27.6500 24.1600 25.6850 6,497,400
4 · 8-K After-hours · 17:13 ET 8-K ↗ 3 · 10-Q After-hours · 16:23 ET 10-Q ↗ 2 · 8-K After-hours · 16:51 ET 8-K ↗ 1 · 424B5 After-hours · 16:49 ET 424B5 ↗
28.7500 29.3600 27.5800 28.2500 1,901,700
Weekend
Weekend
28.4300 29.2500 28.2000 28.6600 1,923,000
28.2200 28.5000 27.1000 28.0700 1,718,600
29.1700 29.1700 28.1770 28.5200 2,239,600
29.0500 30.9800 28.6100 29.1300 3,895,300
27.4000 29.5620 26.9000 29.3200 2,912,900
Weekend
Weekend
25.8600 27.4400 25.4110 27.0700 1,917,900
26.5500 27.5000 26.1000 26.3700 1,954,800
26.9800 27.6900 26.2600 26.6600 3,368,800
27.4500 27.7300 26.4990 26.7400 1,893,200
28.7100 28.7100 27.3000 27.4500 2,187,500
Weekend
Weekend

Announcement Events

Each title opens the filing on the SEC website. Registered users can summarise the filing and up to seven relevant exhibits linked within the same SEC submission.

30 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 16:08 ET Summarise
29 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:07 ET Summarise
28 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:34 ET Summarise
27 424B5 424B5 (opens SEC filing in a new tab) After-hours · 16:33 ET Summarise
26 8-K 8-K (opens SEC filing in a new tab) Pre-market · 07:10 ET Summarise
25 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:11 ET Summarise
24 8-K 8-K (opens SEC filing in a new tab) Pre-market · 07:44 ET Summarise
23 424B5 424B5 (opens SEC filing in a new tab) Next filing day · accepted 09 Jun, 19:37 ET Summarise
22 S-3ASR S-3ASR (opens SEC filing in a new tab) After-hours · 16:33 ET Summarise
21 8-K 8-K (opens SEC filing in a new tab) Pre-market · 08:01 ET Summarise
20 8-K 8-K (opens SEC filing in a new tab) Pre-market · 06:57 ET Summarise
19 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 17:00 ET Summarise
18 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:40 ET Summarise
17 DEFA14A DEFA14A (opens SEC filing in a new tab) After-hours · 17:00 ET Summarise
16 DEF 14A DEF 14A (opens SEC filing in a new tab) After-hours · 16:12 ET Summarise
15 PRE 14A PRE 14A (opens SEC filing in a new tab) After-hours · 16:28 ET Summarise
14 10-K 10-K (opens SEC filing in a new tab) After-hours · 16:10 ET Summarise
13 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:07 ET Summarise
12 8-K 8-K (opens SEC filing in a new tab) Pre-market · 07:35 ET Summarise
11 8-K 8-K (opens SEC filing in a new tab) Pre-market · 07:43 ET Summarise
10 8-K 8-K (opens SEC filing in a new tab) Pre-market · 09:23 ET Summarise
9 S-3ASR S-3ASR (opens SEC filing in a new tab) After-hours · 17:10 ET Summarise
8 8-K 8-K (opens SEC filing in a new tab) Pre-market · 08:56 ET Summarise
7 10-Q 10-Q (opens SEC filing in a new tab) Pre-market · 07:51 ET Summarise
6 8-K 8-K (opens SEC filing in a new tab) Pre-market · 07:28 ET Summarise
5 8-K 8-K (opens SEC filing in a new tab) Pre-market · 07:45 ET Summarise
4 8-K 8-K (opens SEC filing in a new tab) After-hours · 17:13 ET Summarise
3 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 16:23 ET Summarise
2 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:51 ET Summarise
1 424B5 424B5 (opens SEC filing in a new tab) After-hours · 16:49 ET Summarise