Seaport Therapeutics, Inc. Common Stock
SPTX Real Time Price USDRecent trades of SPTX by members of U.S. Congress
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Recently reported changes in SPTX holdings by institutional investors
Quarterly net insider trading by SPTX's directors and management
* Insider trading data parsed from SEC Form 4 filings by Quiver Quantitative. Sign up for the Quiver API for real-time access.
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About
Key Metrics
Return (1d)
Return (30d)
Return (1Y)
CAGR (Total)
Max Drawdown
Beta
Alpha
Sharpe Ratio
Win Rate
Average Win
Average Loss
Annual Volatility
Annual Std Dev
Information Ratio
Treynor Ratio
Total Trades
Metrics Definitions
Disclaimer: The performance results shown are based on historical backtesting and are hypothetical in nature. Backtested performance does not represent actual trading and does not account for all market factors that may affect execution, such as liquidity, slippage, and changing market conditions. Past performance is not necessarily indicative of future results. There is no guarantee that any trading strategy will be profitable or avoid losses.
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Alpha
Measures a portfolio's risk-adjusted performance against that of its benchmark
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Annual Standard Deviation
Measures how much the portfolio's total return varies from its mean or average.
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Annual Volatility
A statistical measure of the dispersion of returns for the portfolio.
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Average Win
The average return (%) for trades that resulted in a positive return.
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Average Loss
The average return (%) for trades that resulted in a negative return.
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Beta
A measure of the volatility of the portfolio compared to the market as a whole.
Learn More about Beta -
CAGR
CAGR (Compounded Annual Growth Rate), is the historical annualized rate of return for an investment strategy, throughout the backtest period.
Learn More about CAGR -
Information Ratio
A measurement of portfolio returns beyond the returns of its benchmark compared to the volatility of those returns.
Learn More about Information Ratio -
Max Drawdown
the maximum observed loss from a peak to a trough of a portfolio, before a new peak is attained.
Learn More about Max Drawdown -
Sharpe Ratio
The Sharpe Ratio is a measure of historical risk-adjusted return, which quantifies the amount of return that an investor received per unit of risk.
Learn More about Sharpe Ratio -
Total Trades
The total number of trades made by this strategy.
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Treynor Ratio
Attempts to measure how successful an investment is in providing compensation to investors for taking on investment risk.
Learn More about Treynor Ratio -
Win Rate
The percentage of total trades that resulted in a positive return.
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Government lobbying spending instances
Former government officials who have lobbied for SPTX
SPTX Estimated quarterly lobbying spending
SPTX Revenue by Segment or Geography
New SPTX patent grants
Federal grants, loans, and purchases
Estimated quarterly amount awarded to SPTX from public contracts
Recent insights relating to SPTX
Recent picks made for SPTX stock on CNBC
ETFs with the largest estimated holdings in SPTX
- ... Highest Price Target
- ... Median Price Target
- ... Lowest Price Target
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- Is $SPTX stock a Buy, Sell, or Hold?
- What is the price target for $SPTX stock?
* Analyst consensus is not financial advice. Please see our data disclaimers .
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- Who owns $SPTX stock?
- Who owns the most shares of $SPTX stock?
- What funds own $SPTX stock?
* These are estimates based on data taken from SEC filings. There may be inaccuracies due to parsing errors, accidental double-counting, incorrect classification of indirectly owned shares, or any other number of issues.
The Quiver Smart Score combines our data on Congress Trading, Lobbying, Insider Trading, CNBC Mentions and more to provide a comprehensive view of the strength of a stock's underlying data.
The Smart Score grades stocks on a scale of 1 (weakest) to 10 (strongest) based on the strength of the underlying data.Sign Up to view SPTX Smart Score
See concise summaries of analyst reports, presenting both bullish and bearish arguments for a stock.
Example:
The Bulls Say summary highlights positive aspects of the stock.
The Bears Say summary points out potential risks and negative aspects of the stock.
Seaport Therapeutics Inc is a clinical-stage therapeutics company. The company focuses on invention and development of new medicines for patients with depression, anxiety, and other debilitating neuropsychiatric disorders. The company identified clinically validated mechanisms with established efficacy and safety profiles, historically limited by high first-pass metabolism, low bioavailability, and side effects. The company's pipeline products are based on Glyph, company's lymphatic-targeting prodrug technology is designed to bypass first-pass metabolism and thereby enhance a drug's oral bioavailability and reduce side effects.
- Address Boston, MA
- Market Cap 1.2 billion
- Employees 0
- Industrial Classification N/A
Seaport Therapeutics, Inc. Common Stock (SPTX) Historical Stock Prices
Seaport Therapeutics, Inc. Common Stock (SPTX) closed at $21.52 on September 25, 2026. Over the past year its adjusted close ranged from $15.25 to $27.84. Daily prices go back to May 1, 2026, 102 trading days in all.
- 1 month-22.70%
- 3 months+0.56%
- Year to date—
- 1 year—
- 3 years—
- 5 years—
- Max+8.47%
Quiver Premium charts SPTX's full daily history since 2014 with each congressional purchase and sale and every open-market insider purchase marked on the price line, with hover details for each trade.
Upgrade to Premium| Date | Open | High | Low | Close | Adj. Close | Volume |
|---|---|---|---|---|---|---|
| Sep 25, 2026 | 22.20 | 22.44 | 21.45 | 21.52 | 21.52 | 192,796 |
| Sep 24, 2026 | 21.08 | 21.37 | 19.93 | 21.12 | 21.12 | 105,737 |
| Sep 23, 2026 | 22.12 | 23.07 | 21.03 | 21.29 | 21.29 | 179,279 |
| Sep 22, 2026 | 21.20 | 22.66 | 21.20 | 22.39 | 22.39 | 146,461 |
| Sep 21, 2026 | 21.46 | 21.93 | 20.28 | 21.12 | 21.12 | 234,265 |
| Sep 18, 2026 | 21.88 | 23.10 | 21.29 | 21.39 | 21.39 | 2,178,493 |
| Sep 17, 2026 | 22.46 | 23.14 | 21.10 | 21.82 | 21.82 | 205,613 |
| Sep 16, 2026 | 23.01 | 24.61 | 21.98 | 22.14 | 22.14 | 235,897 |
| Sep 15, 2026 | 24.56 | 24.95 | 22.63 | 22.96 | 22.96 | 158,970 |
| Sep 14, 2026 | 23.33 | 25.37 | 23.33 | 24.70 | 24.70 | 174,188 |
| Sep 11, 2026 | 23.39 | 24.36 | 23.00 | 23.34 | 23.34 | 134,166 |
| Sep 10, 2026 | 21.58 | 23.28 | 21.58 | 23.28 | 23.28 | 144,714 |
| Sep 9, 2026 | 24.14 | 25.52 | 21.73 | 21.75 | 21.75 | 316,780 |
| Sep 8, 2026 | 24.89 | 25.43 | 23.77 | 24.06 | 24.06 | 141,709 |
| Sep 4, 2026 | 24.03 | 25.00 | 23.63 | 24.86 | 24.86 | 104,337 |
| Sep 3, 2026 | 24.80 | 26.01 | 23.58 | 24.29 | 24.29 | 86,222 |
| Sep 2, 2026 | 23.66 | 25.21 | 23.65 | 24.91 | 24.91 | 156,427 |
| Sep 1, 2026 | 23.68 | 24.20 | 23.24 | 23.61 | 23.61 | 122,756 |
| Aug 31, 2026 | 24.14 | 26.46 | 23.01 | 23.68 | 23.68 | 117,846 |
| Aug 28, 2026 | 26.09 | 26.86 | 24.04 | 24.04 | 24.04 | 144,826 |
| Aug 27, 2026 | 27.84 | 28.38 | 26.05 | 26.25 | 26.25 | 128,656 |
| Aug 26, 2026 | 25.11 | 28.36 | 24.42 | 27.84 | 27.84 | 135,682 |
| Aug 25, 2026 | 24.25 | 25.41 | 24.25 | 24.83 | 24.83 | 85,792 |
| Aug 24, 2026 | 24.40 | 26.47 | 23.46 | 24.08 | 24.08 | 110,488 |
| Aug 21, 2026 | 23.81 | 25.12 | 23.78 | 24.31 | 24.31 | 83,149 |
| Aug 20, 2026 | 24.12 | 25.45 | 23.53 | 24.04 | 24.04 | 86,323 |
| Aug 19, 2026 | 24.00 | 26.32 | 23.66 | 24.42 | 24.42 | 240,946 |
| Aug 18, 2026 | 24.15 | 24.52 | 23.24 | 23.97 | 23.97 | 120,486 |
| Aug 17, 2026 | 24.41 | 25.07 | 23.52 | 24.40 | 24.40 | 98,614 |
| Aug 14, 2026 | 23.79 | 24.33 | 23.39 | 24.22 | 24.22 | 121,146 |
| Aug 13, 2026 | 24.24 | 24.54 | 23.15 | 23.71 | 23.71 | 121,799 |
| Aug 12, 2026 | 23.77 | 24.64 | 23.04 | 23.80 | 23.80 | 246,294 |
| Aug 11, 2026 | 23.40 | 23.84 | 23.04 | 23.36 | 23.36 | 103,463 |
| Aug 10, 2026 | 23.89 | 24.20 | 22.80 | 23.02 | 23.02 | 77,063 |
| Aug 7, 2026 | 23.26 | 24.48 | 23.26 | 23.62 | 23.62 | 112,372 |
| Aug 6, 2026 | 22.01 | 23.34 | 22.00 | 23.09 | 23.09 | 106,561 |
| Aug 5, 2026 | 21.35 | 22.50 | 21.35 | 22.34 | 22.34 | 119,426 |
| Aug 4, 2026 | 20.34 | 21.86 | 20.34 | 21.43 | 21.43 | 89,903 |
| Aug 3, 2026 | 19.54 | 21.10 | 19.54 | 20.65 | 20.65 | 139,526 |
| Jul 31, 2026 | 20.65 | 21.00 | 19.71 | 20.46 | 20.46 | 115,650 |
| Jul 30, 2026 | 19.89 | 20.97 | 19.80 | 20.32 | 20.32 | 102,249 |
| Jul 29, 2026 | 20.18 | 20.57 | 19.21 | 19.74 | 19.74 | 77,380 |
| Jul 28, 2026 | 20.65 | 20.65 | 19.57 | 19.90 | 19.90 | 75,296 |
| Jul 27, 2026 | 21.81 | 22.17 | 20.35 | 20.54 | 20.54 | 117,652 |
| Jul 24, 2026 | 22.06 | 22.16 | 20.98 | 21.10 | 21.10 | 53,550 |
| Jul 23, 2026 | 21.31 | 22.53 | 21.16 | 21.94 | 21.94 | 90,640 |
| Jul 22, 2026 | 21.00 | 21.84 | 20.71 | 21.30 | 21.30 | 73,292 |
| Jul 21, 2026 | 20.76 | 21.45 | 20.50 | 21.00 | 21.00 | 161,516 |
| Jul 20, 2026 | 20.93 | 22.05 | 19.92 | 20.55 | 20.55 | 63,406 |
| Jul 17, 2026 | 19.09 | 21.08 | 19.06 | 20.85 | 20.85 | 72,310 |
| Jul 16, 2026 | 20.25 | 20.70 | 19.16 | 19.52 | 19.52 | 96,876 |
| Jul 15, 2026 | 21.05 | 21.73 | 20.07 | 20.45 | 20.45 | 72,500 |
| Jul 14, 2026 | 20.10 | 20.70 | 19.21 | 20.44 | 20.44 | 263,141 |
| Jul 13, 2026 | 21.30 | 21.56 | 20.06 | 20.10 | 20.10 | 63,234 |
| Jul 10, 2026 | 20.57 | 21.75 | 19.38 | 21.58 | 21.58 | 76,158 |
| Jul 9, 2026 | 21.26 | 21.42 | 19.45 | 20.51 | 20.51 | 160,088 |
| Jul 8, 2026 | 18.17 | 21.59 | 17.89 | 21.26 | 21.26 | 223,408 |
| Jul 7, 2026 | 19.22 | 19.90 | 17.92 | 18.23 | 18.23 | 157,910 |
| Jul 6, 2026 | 20.60 | 21.55 | 19.10 | 19.37 | 19.37 | 141,856 |
| Jul 2, 2026 | 21.39 | 21.87 | 19.42 | 20.57 | 20.57 | 220,838 |
| Jul 1, 2026 | 21.75 | 22.07 | 21.13 | 21.45 | 21.45 | 245,788 |
| Jun 30, 2026 | 22.47 | 22.98 | 21.04 | 21.72 | 21.72 | 263,900 |
| Jun 29, 2026 | 21.12 | 22.65 | 20.86 | 22.52 | 22.52 | 232,270 |
| Jun 26, 2026 | 19.44 | 21.50 | 19.24 | 21.40 | 21.40 | 194,414 |
| Jun 25, 2026 | 19.54 | 19.72 | 18.47 | 19.36 | 19.36 | 194,965 |
| Jun 24, 2026 | 19.62 | 20.04 | 18.73 | 19.31 | 19.31 | 202,734 |
| Jun 23, 2026 | 17.74 | 19.19 | 17.74 | 18.97 | 18.97 | 322,378 |
| Jun 22, 2026 | 17.97 | 18.50 | 17.59 | 17.99 | 17.99 | 466,925 |
| Jun 18, 2026 | 17.44 | 18.28 | 16.91 | 18.17 | 18.17 | 1,326,803 |
| Jun 17, 2026 | 18.07 | 18.43 | 16.76 | 17.10 | 17.10 | 259,295 |
| Jun 16, 2026 | 17.41 | 18.19 | 17.31 | 17.97 | 17.97 | 199,065 |
| Jun 15, 2026 | 17.87 | 18.45 | 17.35 | 17.44 | 17.44 | 104,011 |
| Jun 12, 2026 | 17.78 | 18.50 | 17.51 | 18.00 | 18.00 | 99,621 |
| Jun 11, 2026 | 17.33 | 18.26 | 16.15 | 17.72 | 17.72 | 129,074 |
| Jun 10, 2026 | 17.87 | 18.78 | 16.51 | 17.12 | 17.12 | 156,193 |
| Jun 9, 2026 | 16.00 | 18.34 | 16.00 | 17.66 | 17.66 | 148,386 |
| Jun 8, 2026 | 16.51 | 17.11 | 16.12 | 16.20 | 16.20 | 109,683 |
| Jun 5, 2026 | 17.71 | 18.31 | 16.35 | 16.44 | 16.44 | 170,734 |
| Jun 4, 2026 | 17.30 | 18.27 | 17.30 | 17.88 | 17.88 | 122,210 |
| Jun 3, 2026 | 17.06 | 17.68 | 16.59 | 17.23 | 17.23 | 91,131 |
| Jun 2, 2026 | 17.00 | 17.65 | 16.68 | 17.21 | 17.21 | 87,794 |
| Jun 1, 2026 | 18.33 | 18.59 | 17.01 | 17.13 | 17.13 | 123,692 |
| May 29, 2026 | 18.61 | 18.68 | 17.84 | 18.19 | 18.19 | 112,573 |
| May 28, 2026 | 17.88 | 19.30 | 17.88 | 18.80 | 18.80 | 316,705 |
| May 27, 2026 | 18.00 | 18.24 | 17.80 | 18.05 | 18.05 | 118,654 |
| May 26, 2026 | 17.72 | 18.25 | 17.32 | 18.01 | 18.01 | 181,098 |
| May 22, 2026 | 17.19 | 17.69 | 16.53 | 17.50 | 17.50 | 214,579 |
| May 21, 2026 | 16.00 | 17.52 | 15.67 | 17.19 | 17.19 | 209,910 |
| May 20, 2026 | 16.34 | 16.76 | 15.52 | 15.78 | 15.78 | 266,061 |
| May 19, 2026 | 15.67 | 16.25 | 15.01 | 15.66 | 15.66 | 158,911 |
| May 18, 2026 | 16.85 | 16.85 | 15.00 | 15.74 | 15.74 | 421,784 |
| May 15, 2026 | 16.77 | 17.23 | 16.18 | 16.80 | 16.80 | 611,624 |
| May 14, 2026 | 16.50 | 17.36 | 16.10 | 16.94 | 16.94 | 380,275 |
| May 13, 2026 | 16.10 | 16.70 | 15.57 | 16.50 | 16.50 | 431,693 |
| May 12, 2026 | 15.39 | 16.05 | 15.30 | 15.95 | 15.95 | 155,044 |
| May 11, 2026 | 16.00 | 16.44 | 14.94 | 15.25 | 15.25 | 399,483 |
| May 8, 2026 | 15.75 | 16.24 | 15.44 | 16.05 | 16.05 | 304,104 |
| May 7, 2026 | 16.05 | 16.08 | 14.85 | 15.50 | 15.50 | 429,745 |
| May 6, 2026 | 16.01 | 16.46 | 15.35 | 16.00 | 16.00 | 498,648 |
| May 5, 2026 | 17.35 | 17.86 | 15.21 | 16.00 | 16.00 | 892,722 |
| May 4, 2026 | 19.17 | 19.17 | 16.90 | 17.00 | 17.00 | 910,680 |
| May 1, 2026 | 21.00 | 23.00 | 19.50 | 19.84 | 19.84 | 4,697,711 |
Open, high, low and close are the prices as traded. Adjusted close accounts for splits and dividends, and is what the chart and returns use. Where a company changed its ticker, its history under the old symbol is included.
The Quiver API serves daily prices back to 2014 alongside congressional trades, insider trades, 13F holdings and lobbying, all under one key and inside Claude or ChatGPT through our MCP server.
Explore the Quiver APIWe estimate that -- received a compensation of -- in --, making them the highest paid executive at SPTX, per a recent SEC DEF 14A filing.
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