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C4 Therapeutics (CCCC) Short Interest Ratio & Short Volume

C4 Therapeutics logo
$4.10 -0.14 (-3.30%)
Closing price 08/27/2026 04:00 PM Eastern
Extended Trading
$4.14 +0.04 (+1.00%)
As of 07:50 AM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.
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C4 Therapeutics Short Interest Overview

As of August 14, 2026, C4 Therapeutics (CCCC) had a short interest of 34.05 million shares sold short, representing 29.32% of the public float. This marks a 11.90% increase in short interest since the prior report. The short interest ratio (days to cover) is 13.9, meaning it would take 13.9 days of the average trading volume of 2.45 million shares to cover all short positions.

Current Short Interest
34,048,321 shares
Previous Short Interest
30,427,514 shares
Change Vs. Previous Month
11.90%
Dollar Volume Sold Short
$144.36 million
Short Interest Ratio
13.9 Days to Cover
Last Record Date
August 14, 2026
Outstanding Shares
123,030,000 shares
Short Percent of Float
29.32%
Today's Trading Volume
1,988,436 shares
Average Trading Volume
2,451,437 shares
Today's Volume Vs. Average
81%
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Short Interest ChartDays to Cover ChartShort Percent of Float Chart

CCCC Short Interest Over Time

CCCC Days to Cover Over Time

CCCC Percentage of Float Shorted Over Time

C4 Therapeutics Tesla Short Interest History & Recent Changes

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Report DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date
8/14/202634,048,321 shares $144.36 million +11.9%29.3%13.93 $4.24
7/31/202630,427,514 shares $105.89 million +27.8%29.2%11.12 $3.48
7/15/202623,815,010 shares $90.50 million -4.7%22.8%6.65 $3.80
6/30/202624,997,175 shares $116.74 million +12.4%23.9%5.25 $4.67
6/15/202622,246,308 shares $84.98 million +2.8%21.3%9.52 $3.82
5/29/202621,650,001 shares $94.61 million +1.9%20.7%9.43 $4.37
5/15/202621,254,462 shares $75.67 million +1.0%20.4%5.81 $3.56
4/30/202621,055,109 shares $59.59 million +0.1%20.2%10.88 $2.83
4/15/202621,042,260 shares $60.81 million +30.2%20.2%5.05 $2.89
3/31/202616,157,271 shares $42.49 million +19.4%15.5%8.42 $2.63
3/13/202613,534,910 shares $36.81 million +58.8%15.2%3.74 $2.72
2/27/20268,520,947 shares $23.01 million +19.7%8.2%3.4 $2.70
2/13/20267,121,324 shares $13.46 million -1.2%6.8%8.19 $1.89
1/30/20267,207,214 shares $13.69 million -2.3%8.1%3.84 $1.90
1/15/20267,379,826 shares $16.38 million +1.4%8.3%5.79 $2.22
12/31/20257,281,152 shares $13.91 million +1.5%8.2%3.5 $1.91
12/15/20257,172,653 shares $17.43 million +28.4%8.1%4.38 $2.43
11/28/20255,588,028 shares $14.92 million +15.3%6.3%4.84 $2.67
11/14/20254,848,155 shares $11.97 million +0.8%5.5%2.92 $2.47
10/31/20254,811,669 shares $12.56 million +20.7%7.4%1.89 $2.61
10/15/20253,990,000 shares $8.86 million +13.4%6.1%2 $2.22
9/30/20253,520,000 shares $7.81 million -0.6%N/A1.9 $2.22
9/15/20253,540,000 shares $12.64 million -6.4%N/A2.1 $3.57
8/31/20253,780,000 shares $9.83 million -8.9%5.8%2.5 $2.60
8/15/20254,150,000 shares $10.21 million -10.9%N/A2.8 $2.46
7/31/20254,660,000 shares $9.55 million +14.5%7.2%3.2 $2.05
7/15/20254,070,000 shares $8.59 million -17.9%N/A2.9 $2.11
6/30/20254,960,000 shares $7.09 million -22.3%7.7%3.9 $1.43
6/15/20256,380,000 shares $10.72 million +3.4%9.8%5.8 $1.68
5/31/20256,170,000 shares $7.62 million -3.0%9.6%5.8 $1.24
5/15/20256,360,000 shares $8.78 million -0.8%9.9%5.7 $1.38
4/30/20256,410,000 shares $10.51 million -17.1%N/A5.1 $1.64
4/15/20257,730,000 shares $9.20 million -0.4%12.0%5.6 $1.19
3/31/20257,760,000 shares $12.42 million -5.0%12.0%5.4 $1.60
3/15/20258,170,000 shares $16.59 million -4.4%12.7%5 $2.03
2/28/20258,550,000 shares $23.17 million +6.1%13.2%4.7 $2.71
2/15/20258,060,000 shares $25.63 million +8.9%12.5%4.4 $3.18
1/31/20257,400,000 shares $25.68 million -20.3%N/A4.4 $3.47
1/15/20259,280,000 shares $37.49 million +7.9%N/A6 $4.04
12/31/20248,600,000 shares $30.96 million -3.0%N/A6.4 $3.60
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12/15/20248,870,000 shares $38.85 million +11.0%N/A7.3 $4.38
11/30/20247,990,000 shares $36.35 million +8.0%N/A7.3 $4.55
11/15/20247,400,000 shares $31.89 million +26.5%N/A7.3 $4.31
10/31/20245,850,000 shares $31.18 million -12.0%N/A6 $5.33
10/15/20246,650,000 shares $41.90 million -39.6%N/A6.7 $6.30
9/30/202411,010,000 shares $62.76 million -7.6%N/A9 $5.70
9/15/202411,920,000 shares $76.76 million +2.5%N/A8.1 $6.44
8/31/202411,630,000 shares $73.50 million +10.8%N/A7.4 $6.32
8/15/202410,500,000 shares $61.53 million +0.3%N/A6.6 $5.86
7/31/202410,470,000 shares $70.15 million -10.0%N/A6.3 $6.70
7/15/202411,630,000 shares $75.48 million +32.0%N/A7 $6.49
6/30/20248,810,000 shares $40.70 million -39.4%N/A5.7 $4.62
6/15/202414,540,000 shares $63.69 million +9.7%N/A10.2 $4.38
5/31/202413,260,000 shares $66.30 million +16.9%N/A8.4 $5.00
5/15/202411,340,000 shares $69.29 million +11.8%N/A5.9 $6.11
4/30/202410,140,000 shares $63.88 million +6.1%N/A4.5 $6.30
4/15/20249,560,000 shares $65.58 million +4.5%N/A3.7 $6.86
3/31/20249,150,000 shares $74.76 million +73.0%N/A2.4 $8.17
3/15/20245,290,000 shares $47.24 million +78.1%N/A1.1 $8.93
2/29/20242,970,000 shares $32.61 million -6.6%N/A0.2 $10.98
2/15/20243,180,000 shares $25.12 million -5.1%N/A0.2 $7.90
1/31/20243,350,000 shares $20.70 million -39.6%8.7%0.2 $6.18
1/15/20245,550,000 shares $37.74 million +22.3%14.5%0.4 $6.80
12/31/20234,540,000 shares $25.65 million -44.0%10.8%0.3 $5.65
12/15/20238,100,000 shares $40.10 million +330.9%19.3%0.7 $4.95
11/30/20231,880,000 shares $3.06 million -3.6%4.5%3.4 $1.63
11/15/20231,950,000 shares $3.51 million +2.1%4.7%4.1 $1.80
10/31/20231,910,000 shares $2.85 million +4.4%4.6%3.9 $1.49
10/15/20231,830,000 shares $3.64 million -19.0%4.6%3.8 $1.99
9/30/20232,260,000 shares $4.20 million -5.0%5.6%5.2 $1.86
9/15/20232,380,000 shares $5.31 million +14.4%5.9%2.4 $2.23
8/31/20232,080,000 shares $6.03 million +9.5%5.2%1.9 $2.90
8/15/20231,900,000 shares $6.42 million -10.0%4.7%1.6 $3.38
7/31/20232,110,000 shares $8.21 million -5.8%5.3%1.7 $3.89
7/15/20232,240,000 shares $7.50 million -8.9%5.6%1.8 $3.35
6/30/20232,460,000 shares $6.77 million -26.4%6.1%2 $2.75
6/15/20233,340,000 shares $12.06 million +2.8%8.3%5.1 $3.61
5/31/20233,250,000 shares $11.02 million +12.1%8.1%5.4 $3.39
5/15/20232,900,000 shares $9.69 million +0.7%7.2%5.2 $3.34
4/30/20232,880,000 shares $8.70 million +1.8%7.0%5 $3.02
4/15/20232,830,000 shares $9.48 million +7.6%6.9%4.9 $3.35
3/31/20232,630,000 shares $8.26 million -9.9%6.5%4.5 $3.14
3/15/20232,920,000 shares $12.59 million -10.2%7.2%5.1 $4.31
2/28/20233,250,000 shares $17.13 million +0.9%8.0%6.3 $5.27
2/15/20233,220,000 shares $18.58 million -12.5%7.9%6.1 $5.77
1/31/20233,680,000 shares $28.67 million +2.8%9.0%7 $7.79
1/15/20233,580,000 shares $30.57 million +2.0%8.8%7.8 $8.54
12/30/20223,510,000 shares $20.71 million -3.6%8.6%7.8 $5.90
12/15/20223,640,000 shares $29.48 million +0.3%8.9%8 $8.10
11/30/20223,630,000 shares $31.11 million -8.1%8.9%7.5 $8.57
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11/15/20223,950,000 shares $38.39 million -19.1%9.7%8.5 $9.72
10/31/20224,880,000 shares $46.95 million -1.2%11.9%11.4 $9.62
10/15/20224,940,000 shares $39.32 million -2.0%12.9%12.1 $7.96
9/30/20225,040,000 shares $44.20 million +11.0%13.2%11.9 $8.77
9/15/20224,540,000 shares $51.57 million -6.8%11.8%9.8 $11.36
8/31/20224,870,000 shares $49.09 million -5.1%12.7%9.9 $10.08
8/15/20225,130,000 shares $62.23 million -3.2%13.4%9.2 $12.13
7/31/20225,300,000 shares $51.09 million +1.5%13.9%8.2 $9.64
7/15/20225,220,000 shares $52.30 million +2.8%13.7%7.2 $10.02
6/30/20225,080,000 shares $38.30 million +20.7%13.3%4.7 $7.54
6/15/20224,210,000 shares $23.11 million -2.1%11.0%3.7 $5.49
5/31/20224,300,000 shares $31.22 million +10.3%11.3%4.2 $7.26
5/15/20223,900,000 shares $27.89 million -23.7%10.2%3.9 $7.15
4/30/20225,110,000 shares $43.79 million -4.7%13.4%5.4 $8.57
4/15/20225,360,000 shares $47.97 million +4.7%14.0%5.8 $8.95
3/31/20225,120,000 shares $124.21 million +8.5%13.4%7.2 $24.26
3/15/20224,720,000 shares $101.48 million +29.7%12.4%9.8 $21.50
2/28/20223,640,000 shares $81.65 million +8.7%9.5%7.6 $22.43
2/15/20223,350,000 shares $80.03 million +23.2%8.8%7.7 $23.89
1/31/20222,720,000 shares $66.45 million -13.1%7.1%6.7 $24.43
1/15/20223,130,000 shares $86.20 million -1.6%8.1%9.5 $27.54
12/31/20213,180,000 shares $102.40 million +6.0%8.3%10.9 $32.20
12/15/20213,000,000 shares $91.50 million +8.3%7.8%11 $30.50
11/30/20212,770,000 shares $102.82 million +0.4%7.2%10.6 $37.12
11/15/20212,760,000 shares $115.09 million +2.2%7.2%10.3 $41.70
10/29/20212,700,000 shares $119.93 million +1.5%7.0%9.9 $44.42
10/15/20212,660,000 shares $116.75 million No Change6.9%8.7 $43.89
9/30/20212,660,000 shares $118.85 million +17.2%6.9%7.9 $44.68
9/15/20212,270,000 shares $110.75 million -6.2%5.9%5.7 $48.79
8/31/20212,420,000 shares $97.11 million -11.7%6.6%5.5 $40.13

CCCC Short Interest - Frequently Asked Questions

Short interest is the volume of C4 Therapeutics shares that have been sold short but have not yet been covered or closed out. As of August 14th, investors have sold 34,048,321 shares of CCCC short. 29.32% of C4 Therapeutics' shares are currently sold short. Learn More on C4 Therapeutics' current short interest.

The short interest ratio, also known as the "days to cover ratio", is calculated by dividing the number of shares of a stock sold short divided by its average trading volume. A short interest ratio ranging between 1 and 4 generally indicates strong positive sentiment about a stock and a lack of short sellers. A short interest ratio of 10 or greater indicates strong pessimism about a stock. CCCC shares currently have a short interest ratio of 13.9. Learn More on C4 Therapeutics's short interest ratio.

Companies that have a short interest as a percentage of float below 10% indicates positive investor sentiment and few short sellers. Stocks with a short interest percentage above 10% is considered high, suggesting some investors are pessimistic about the stock. Companies with a short interest percentage of 20% or more indicates widespread negative sentiment. 29.32% of C4 Therapeutics' floating shares are currently sold short.

C4 Therapeutics saw a increase in short interest in the month of August. As of August 14th, there was short interest totaling 34,048,321 shares, an increase of 11.9% from the previous total of 30,427,514 shares. Changes in short volume can be used to identify positive and negative investor sentiment. Investors that short sell a stock are betting that its price will decline in the future. An increase in short sale volume suggests bearish (negative) sentiment among investors. A decrease on short sale volume suggests bullish (positive) sentiment.

29.32% of C4 Therapeutics' shares are currently sold short. Here is how the short interest of companies in the industry of "biotechnology" compare to C4 Therapeutics: Taysha Gene Therapies, Inc. (14.86%), Zymeworks Inc. (9.62%), Sarepta Therapeutics, Inc. (27.51%), Lakefront Biotherapeutics American Depositary Shares (4.65%), Damora Therapeutics, Inc. Common Stock (7.71%), Immunocore Holdings PLC Sponsored ADR (17.05%), Intellia Therapeutics, Inc. (33.19%), Septerna, Inc. (6.54%), Vir Biotechnology, Inc. (11.93%), Recursion Pharmaceuticals, Inc. (35.60%),

As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($71.57 billion), Invesco QQQ ($46.97 billion), iShares Russell 2000 ETF ($24.02 billion), Nebius Group N.V. ($15.37 billion), Sandisk Corporation ($12.60 billion), SPDR S&P Biotech ETF ($12.14 billion), Western Digital Corporation ($10.32 billion), iShares 20+ Year Treasury Bond ETF ($8.38 billion), VanEck Semiconductor ETF ($7.62 billion), and iShares iBoxx $ High Yield Corporate Bond ETF ($7.07 billion). View all of the most shorted stocks.

Short selling CCCC is an investing strategy that aims to generate trading profit from C4 Therapeutics as its price is falling. CCCC shares are trading down $0.14 today. To short a stock, an investor borrows shares, sells them and buys the shares back on the public market later to return it to the lender. Short sellers are betting that a stock will decline in price. If the stock does drop after selling, the short seller buys it back at a lower price and returns it to the lender. The difference between the sell price and the buy price is the trader's profit.

A short squeeze for C4 Therapeutics occurs when it has a large amount of short interest and its stock increases in price. This forces short sellers to cover their short interest positions by buying actual shares of CCCC, which in turn drives the price of the stock up even further.

Short interest is typically published by a stock exchange once per month. However, NASDAQ publishes a report for U.S. stocks, including CCCC, twice per month. The most recent reporting period available is August, 14 2026.

Understanding short interest metrics can help you assess how traders are positioning around a stock like CCCC:

  • Shares Sold Short: The total number of shares that have been sold by short sellers but have not yet been covered or closed out. A high number may indicate bearish sentiment.
  • Short Float: The percentage of a company’s publicly available shares (or "float") that are sold short. A higher short float suggests a greater portion of the stock is being bet against.
  • Days to Cover (Short Interest Ratio): This estimates how many days it would take short sellers to cover their positions, based on average daily trading volume. Higher values can signal potential for a short squeeze if buying pressure increases.

These metrics are often used by traders to gauge sentiment, volatility risk, and the potential for price movements based on short covering activity.


Related Companies
Short Interest Tools

Short interest data for NASDAQ:CCCC is sourced from the Financial Industry Regulatory Authority (FINRA), with the most recent report published on 8/25/2026. FINRA publishes updated short interest twice a month.
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