C4 Therapeutics, Inc CCCC

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C4 Therapeutics, Inc. - Common Stock · Company · Nasdaq · Healthcare / Biotechnology

Paper trade (simulated — no real money)

Fill: USD 3.0600 · FX 1 USD = 1.277900 SGD · about SGD 3.9104 per unit

Sign in to practise with simulated trades before investing real money. 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 2.45 → 3.06 · 24.9%
4.6703.1901.710 1,2 3 4 5 6,7 8 9 10,11 12,13 14 15 16 17,18 19 Oct 25Jan 26Apr 26Jul 26Oct 26

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

Price & SEC Filing History 24 Oct 2025 — 25 Oct 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.

Weekend
Weekend
3.1500 3.1500 3.0250 3.0600 4,741,071
3.1300 3.2500 3.1200 3.1800 1,692,400
3.1500 3.2200 3.1000 3.1700 2,189,000
2.8600 3.2000 2.8550 3.1600 3,685,100
2.8000 2.9400 2.8000 2.8900 3,111,000
Weekend
Weekend
2.7800 2.8100 2.6950 2.7650 2,359,300
2.6400 2.8460 2.6000 2.7800 3,274,900
2.7200 2.7950 2.5900 2.6100 3,094,000
3.0400 3.0600 2.7500 2.7800 3,821,400
3.1600 3.3000 3.0500 3.0600 1,500,400
Weekend
Weekend
3.0000 3.1900 2.9500 3.1600 2,506,100
2.8000 2.8800 2.7210 2.8500 2,827,700
2.8500 2.9500 2.8200 2.8200 2,267,500
3.0200 3.0300 2.7900 2.8800 2,113,100
3.0100 3.1000 2.9500 2.9900 1,463,600
Weekend
Weekend
3.1900 3.3300 2.9300 2.9500 3,384,900
3.3100 3.3700 3.1350 3.1400 1,891,600
3.1600 3.3700 3.1300 3.3300 2,609,200
3.0900 3.2150 3.0000 3.1300 1,554,100
3.0150 3.1600 2.9800 3.1150 2,776,000
Weekend
Weekend
3.0300 3.1150 2.9250 2.9800 2,116,800
19 · 8-K Pre-market · 07:04 ET 8-K ↗
3.0300 3.0600 2.8800 3.0300 2,807,600
3.3200 3.3400 2.9250 3.0800 4,592,400
3.3300 3.4200 3.2850 3.3100 1,357,800
3.4400 3.4500 3.2450 3.3000 2,050,500
Weekend
Weekend
3.4300 3.4750 3.3800 3.3900 1,630,900
3.5100 3.5900 3.4000 3.4150 1,758,200
3.4400 3.5300 3.4250 3.4500 2,320,800
3.4000 3.4550 3.3200 3.4300 1,344,100
3.4600 3.5400 3.4100 3.4300 1,485,400
Weekend
Weekend
3.4750 3.5250 3.3550 3.5100 1,472,300
3.4000 3.4100 3.3100 3.4000 1,167,600
3.5400 3.5400 3.4200 3.4400 1,441,300
3.7200 3.7350 3.5500 3.5500 2,172,400
No trading
Weekend
Weekend
3.7200 3.8450 3.6600 3.7600 2,363,400
3.8300 3.8500 3.7000 3.7400 2,227,700
3.8700 4.0700 3.7300 3.7900 1,835,400
3.6800 3.9350 3.6600 3.8700 2,364,100
3.8300 3.8600 3.6950 3.7100 1,857,200
Weekend
Weekend
4.0700 4.1000 3.8300 3.8500 1,824,700
4.2500 4.3000 4.0900 4.1000 1,988,400
4.1700 4.2400 4.0300 4.2400 1,861,700
4.1100 4.2350 4.0850 4.2000 4,285,800
3.9700 4.1400 3.8100 4.1000 1,752,900
Weekend
Weekend
4.0700 4.1000 3.9350 4.0000 1,160,600
4.1400 4.1500 3.8320 4.0300 2,272,700
4.2500 4.3750 4.1300 4.2100 2,848,800
4.2100 4.3000 4.1050 4.1800 2,878,700
4.3150 4.3150 4.1080 4.2650 2,086,800
Weekend
Weekend
4.0700 4.3150 3.8950 4.2400 3,399,000
3.9300 4.2300 3.8600 4.0800 3,726,100
3.9500 3.9950 3.8250 3.9000 1,956,800
3.8400 4.0000 3.6400 3.8700 3,085,400
18 · 10-Q Pre-market · 07:29 ET 10-Q ↗ 17 · 8-K Pre-market · 07:14 ET 8-K ↗
3.7500 3.7500 3.6000 3.6200 1,963,800
Weekend
Weekend
3.6900 3.7500 3.6500 3.7300 1,504,100
3.6200 3.7200 3.5800 3.6400 1,823,800
3.6100 3.6800 3.5400 3.6200 2,556,300
3.5700 3.6390 3.4700 3.6100 2,519,600
3.5000 3.5350 3.3600 3.5000 2,244,200
Weekend
Weekend
3.6600 3.6600 3.4500 3.4800 1,949,800
3.5300 3.6900 3.5150 3.6600 3,148,100
3.5300 3.6800 3.4500 3.5200 2,222,000
3.5700 3.6450 3.4300 3.5500 2,373,100
3.4100 3.7100 3.4100 3.5900 4,271,400
Weekend
Weekend
3.6700 3.6750 3.3900 3.4000 2,584,000
3.6600 3.7400 3.6000 3.6500 1,782,500
3.8000 3.9500 3.6400 3.7400 2,192,500
3.5800 3.9050 3.5800 3.8300 3,196,400
3.6900 3.7300 3.4750 3.5800 3,135,200
Weekend
Weekend
3.4800 3.7700 3.4400 3.6900 2,457,900
3.7500 3.7500 3.5100 3.5800 3,865,600
3.8300 3.8350 3.7000 3.8000 4,016,200
3.9600 3.9700 3.7750 3.8100 3,046,500
4.0500 4.0500 3.8300 3.9200 3,013,400
Weekend
Weekend
4.2950 4.2950 3.9100 4.0600 2,583,000
4.1900 4.4000 4.1300 4.2900 2,536,300
4.2700 4.3700 3.7250 4.1900 6,712,600
4.1500 4.4250 3.9650 4.3500 4,373,800
4.2900 4.4000 4.1050 4.1400 1,904,400
Weekend
Weekend
No trading
4.3700 4.4300 4.1500 4.3000 2,566,000
4.5900 4.7300 4.1250 4.3400 5,353,000
4.3500 5.1700 4.3100 4.6700 6,615,900
4.2500 4.5000 4.2500 4.3500 3,120,800
Weekend
Weekend
4.4500 4.5750 4.1400 4.2600 20,144,400
4.2700 4.4500 4.2100 4.4000 2,594,300
16 · 8-K After-hours · 16:22 ET 8-K ↗
4.2300 4.3800 4.1610 4.2500 2,735,800
4.0200 4.4800 3.9900 4.2200 2,912,400
4.1700 4.4100 4.1000 4.1200 2,995,800
Weekend
Weekend
No trading
3.9500 4.1800 3.8550 4.1500 3,427,000
3.8800 4.1750 3.8400 3.9200 2,094,700
3.8300 3.9300 3.6050 3.8400 1,542,800
3.9800 4.0500 3.8200 3.8200 1,558,200
Weekend
Weekend
3.8800 4.2450 3.8400 3.9000 2,849,700
3.8450 3.9800 3.7300 3.8700 2,227,600
15 · 8-K Pre-market · 07:04 ET 8-K ↗
3.5700 3.8850 3.5300 3.8700 2,277,200
3.6200 3.8700 3.4400 3.5800 1,649,200
3.9900 3.9900 3.5400 3.5900 1,951,000
Weekend
Weekend
4.1500 4.1600 3.7850 3.8500 2,127,000
3.9700 4.4450 3.9700 4.1700 1,548,800
4.3000 4.3050 3.9000 3.9600 1,992,300
4.2700 4.5800 4.1300 4.3400 4,006,600
4.3600 4.5980 4.3000 4.3800 3,774,600
Weekend
Weekend
3.6600 4.5750 3.6600 4.3700 5,887,400
3.7700 3.8150 3.6250 3.6600 1,105,700
3.5200 3.9650 3.5200 3.7400 2,632,800
3.5900 3.6500 3.4750 3.4900 1,676,600
No trading
Weekend
Weekend
3.5700 3.6900 3.5400 3.5600 1,707,700
3.2250 3.5550 3.1900 3.5200 2,128,700
3.1600 3.3850 3.1350 3.2800 1,552,900
3.1600 3.2200 3.0500 3.1100 1,898,900
3.5300 3.5800 3.1200 3.2200 2,251,600
Weekend
Weekend
14 · 8-K After-hours · 16:03 ET 8-K ↗
3.5700 3.7000 3.2800 3.5600 2,282,400
3.6900 3.7850 3.4750 3.6300 2,822,800
3.1900 3.9500 3.1350 3.6800 14,563,900
3.0800 3.1950 3.0350 3.1700 2,314,600
13 · 10-Q Pre-market · 07:07 ET 10-Q ↗ 12 · 8-K Pre-market · 07:05 ET 8-K ↗
2.9500 3.2000 2.9500 3.1700 2,989,200
Weekend
Weekend
2.9800 3.0750 2.9220 2.9500 1,345,600
2.9100 3.1000 2.7950 2.9800 2,798,600
3.0000 3.0100 2.8950 2.9300 1,315,700
3.0400 3.0700 2.8850 2.9700 1,194,500
2.8900 3.2000 2.8250 3.0350 4,194,300
Weekend
Weekend
2.8300 3.0850 2.7500 2.9200 4,847,900
2.5900 2.9000 2.5700 2.8300 2,319,300
2.7400 2.7720 2.5200 2.5600 1,853,600
11 · DEFA14A Pre-market · 07:02 ET DEFA14A ↗ 10 · DEF 14A Pre-market · 07:00 ET DEF 14A ↗
2.8300 2.9500 2.7250 2.7500 1,717,300
2.8800 3.0050 2.8150 2.8300 1,200,000
Weekend
Weekend
2.9650 3.0100 2.7700 2.8800 2,142,800
3.0400 3.0800 2.9300 2.9700 2,285,900
3.1500 3.2000 2.9900 3.0700 1,598,000
2.9800 3.1500 2.8900 3.1200 3,325,500
2.9000 3.0750 2.8600 2.9900 2,573,900
Weekend
Weekend
2.9700 3.0200 2.8700 2.9200 1,139,400
2.8500 2.9400 2.8000 2.9000 1,338,500
2.7800 2.9400 2.7550 2.8900 1,854,400
2.7700 2.9590 2.7050 2.7600 3,934,400
2.5200 3.0200 2.5000 2.7600 5,236,400
Weekend
Weekend
2.8400 2.8700 2.5000 2.5350 3,945,100
9 · 8-K Pre-market · 07:17 ET 8-K ↗
2.8300 3.0100 2.6700 2.8300 19,702,000
8 · 8-K Pre-market · 07:07 ET 8-K ↗
2.8600 2.9600 2.8250 2.9000 1,642,600
2.8400 2.8600 2.7100 2.7400 1,201,000
2.8200 3.0200 2.8200 2.8400 1,486,000
Weekend
Weekend
No trading
2.6300 2.8400 2.6000 2.8200 2,127,300
2.6900 2.8500 2.6600 2.7000 2,423,500
2.4100 2.6600 2.4100 2.6300 2,060,900
2.4200 2.4600 2.3000 2.3500 720,800
Weekend
Weekend
2.5700 2.6000 2.3900 2.4100 1,632,700
2.6100 2.7990 2.6050 2.6200 1,638,800
2.6300 2.7700 2.5700 2.6900 1,351,700
2.5500 2.6250 2.4900 2.5000 1,632,400
2.7600 2.8100 2.5500 2.5600 2,696,300
Weekend
Weekend
2.5800 2.8500 2.5800 2.7000 3,310,800
2.6200 2.7300 2.5300 2.6100 2,023,800
2.7500 2.7700 2.6350 2.6900 2,514,600
2.7300 2.8200 2.7000 2.7600 1,949,200
2.7700 2.8750 2.6840 2.7300 1,641,200
Weekend
Weekend
2.7800 2.9400 2.7100 2.7200 1,855,100
2.9300 2.9350 2.7500 2.7500 1,719,500
3.1300 3.1300 2.8200 2.9900 3,639,100
3.5900 3.6400 3.1100 3.1200 3,437,200
2.9650 3.8200 2.9650 3.5900 6,580,800
Weekend
Weekend
2.9500 3.1200 2.8510 3.0400 1,845,200
3.1000 3.1000 2.8700 3.0300 2,495,900
2.9500 3.1950 2.9100 3.0900 3,215,400
3.0600 3.1200 2.7500 2.9500 4,895,700
2.6100 3.2200 2.5700 3.1700 6,806,300
Weekend
Weekend
2.7800 2.9700 2.6700 2.7000 3,465,900
2.9300 3.0000 2.6100 2.7800 4,396,800
7 · 10-K Pre-market · 07:49 ET 10-K ↗ 6 · 8-K Pre-market · 07:09 ET 8-K ↗
2.4100 2.8650 2.4100 2.7700 6,531,700
2.3300 2.7700 2.3300 2.3900 6,084,300
2.1500 2.3300 2.1200 2.3000 1,610,400
Weekend
Weekend
2.1000 2.2200 2.0750 2.1600 1,145,400
1.9300 2.1200 1.8750 2.1200 1,278,000
1.8300 1.9750 1.8100 1.9100 1,048,200
1.8400 1.8700 1.7900 1.8300 1,476,700
No trading
Weekend
Weekend
1.8500 1.9700 1.8500 1.8900 697,900
1.8000 1.8700 1.7800 1.8300 623,700
1.8500 1.8820 1.7350 1.8300 1,101,400
1.7900 1.9000 1.7800 1.8400 700,400
1.8200 1.8200 1.7500 1.7800 575,000
Weekend
Weekend
1.7700 1.8690 1.7250 1.8200 829,200
1.8800 1.9100 1.6900 1.7100 853,000
2.0100 2.0100 1.8050 1.8900 1,120,600
1.8800 2.0350 1.8800 2.0100 1,389,100
1.9000 1.9300 1.8500 1.8800 858,200
Weekend
Weekend
1.9500 1.9600 1.8300 1.9000 1,670,000
2.0400 2.0400 1.9350 1.9600 1,016,700
2.1400 2.1400 2.0000 2.0300 1,010,200
2.0900 2.1460 2.0810 2.1400 532,600
2.1700 2.1700 2.0700 2.0700 668,500
Weekend
Weekend
2.1700 2.1870 2.1300 2.1500 770,100
2.1400 2.2300 2.1300 2.1800 780,100
2.1700 2.1900 2.0600 2.1200 1,138,900
2.1800 2.2000 2.0900 2.1800 10,035,100
No trading
Weekend
Weekend
2.2200 2.2900 2.1650 2.2300 1,266,000
2.3400 2.3400 2.1900 2.2200 738,500
2.3000 2.4700 2.2700 2.3300 1,034,400
5 · 8-K Pre-market · 07:12 ET 8-K ↗
2.1400 2.3450 2.1300 2.3100 1,720,300
2.1600 2.1600 2.0200 2.1300 1,824,900
Weekend
Weekend
2.2000 2.2500 2.1350 2.1400 1,086,000
2.2400 2.2700 2.1200 2.1900 1,078,100
2.0500 2.3300 2.0500 2.2200 2,125,500
2.0500 2.0800 2.0150 2.0300 855,400
2.0000 2.1850 1.9850 2.0300 1,423,100
Weekend
Weekend
1.9500 1.9690 1.8700 1.9300 974,100
No trading
1.9600 1.9600 1.9000 1.9100 920,000
2.0300 2.0300 1.9250 1.9600 1,050,700
2.1100 2.1350 2.0200 2.0300 891,800
Weekend
Weekend
2.0800 2.1350 2.0500 2.1200 1,136,200
No trading
2.0000 2.1000 2.0000 2.0800 414,400
2.0600 2.0700 1.9300 2.0200 1,888,300
2.0700 2.1300 2.0150 2.0900 1,001,800
Weekend
Weekend
2.0100 2.1000 2.0050 2.0300 2,256,500
2.0900 2.1400 1.9950 2.0100 10,574,300
2.3000 2.3000 2.0400 2.0500 1,761,900
2.4050 2.4400 2.2600 2.2600 1,092,500
2.4900 2.5200 2.4000 2.4300 1,056,200
Weekend
Weekend
2.5500 2.5700 2.4600 2.4700 1,287,300
2.5800 2.6900 2.5300 2.5400 923,000
4 · 424B5 After-hours · 17:30 ET 424B5 ↗
2.6100 2.6100 2.5000 2.5800 1,017,600
2.5400 2.6300 2.5200 2.5900 981,100
2.7300 2.7600 2.4900 2.5400 1,648,800
Weekend
Weekend
2.6000 2.7600 2.5700 2.6700 2,036,800
2.7100 2.7500 2.5700 2.5900 3,014,400
2.4500 2.8400 2.4100 2.8100 4,013,600
2.6100 2.6500 2.4300 2.4300 939,100
2.6400 2.6500 2.5050 2.5400 1,272,900
Weekend
Weekend
2.7200 2.7500 2.6100 2.7100 715,700
No trading
2.4700 2.7100 2.4500 2.6800 1,774,900
2.4700 2.4950 2.4200 2.4800 873,100
2.4000 2.4900 2.4000 2.4600 894,600
Weekend
Weekend
3 · S-3 After-hours · 16:03 ET S-3 ↗
2.4000 2.4590 2.2900 2.4400 1,184,300
2.5500 2.6300 2.3600 2.3800 1,763,300
2.4800 2.5400 2.4400 2.5000 1,105,900
2.4000 2.5250 2.3900 2.4800 923,300
2.4700 2.5500 2.4000 2.5000 1,287,600
Weekend
Weekend
2.4000 2.5000 2.3700 2.4700 794,100
2.4500 2.5200 2.3900 2.4500 1,534,900
2.4400 2.5700 2.4400 2.4800 5,977,200
2.3400 2.4850 2.3200 2.4800 685,700
2.3500 2.4200 2.2900 2.3400 698,600
Weekend
Weekend
2.3500 2.4200 2.1700 2.3400 1,190,800
2.3500 2.4550 2.3200 2.3800 945,700
2 · 10-Q Pre-market · 07:12 ET 10-Q ↗ 1 · 8-K Pre-market · 07:06 ET 8-K ↗
2.2500 2.3800 2.2400 2.3700 1,586,100
2.4300 2.4400 2.2500 2.2600 1,292,100
2.6400 2.6500 2.3700 2.4800 1,942,600
Weekend
Weekend
2.4500 2.6200 2.3800 2.6100 1,596,100
2.4800 2.6050 2.4500 2.4600 930,900
2.5800 2.5990 2.4500 2.5100 1,333,600
2.6500 2.6740 2.5600 2.5800 819,100
2.5700 2.7900 2.5100 2.6500 1,936,200
Weekend
Weekend
2.3400 2.5200 2.3210 2.4500 1,814,500

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.

19 8-K 8-K (opens SEC filing in a new tab) Pre-market · 07:04 ET Summarise
18 10-Q 10-Q (opens SEC filing in a new tab) Pre-market · 07:29 ET Summarise
17 8-K 8-K (opens SEC filing in a new tab) Pre-market · 07:14 ET Summarise
16 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:22 ET Summarise
15 8-K 8-K (opens SEC filing in a new tab) Pre-market · 07:04 ET Summarise
14 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:03 ET Summarise
13 10-Q 10-Q (opens SEC filing in a new tab) Pre-market · 07:07 ET Summarise
12 8-K 8-K (opens SEC filing in a new tab) Pre-market · 07:05 ET Summarise
11 DEFA14A DEFA14A (opens SEC filing in a new tab) Pre-market · 07:02 ET Summarise
10 DEF 14A DEF 14A (opens SEC filing in a new tab) Pre-market · 07:00 ET Summarise
9 8-K 8-K (opens SEC filing in a new tab) Pre-market · 07:17 ET Summarise
8 8-K 8-K (opens SEC filing in a new tab) Pre-market · 07:07 ET Summarise
7 10-K 10-K (opens SEC filing in a new tab) Pre-market · 07:49 ET Summarise
6 8-K 8-K (opens SEC filing in a new tab) Pre-market · 07:09 ET Summarise
5 8-K 8-K (opens SEC filing in a new tab) Pre-market · 07:12 ET Summarise
4 424B5 424B5 (opens SEC filing in a new tab) After-hours · 17:30 ET Summarise
3 S-3 S-3 (opens SEC filing in a new tab) After-hours · 16:03 ET Summarise
2 10-Q 10-Q (opens SEC filing in a new tab) Pre-market · 07:12 ET Summarise
1 8-K 8-K (opens SEC filing in a new tab) Pre-market · 07:06 ET Summarise