Seaport Therapeutics (SPTX) closed at $20.76 on October 22, 2026, up 5.2% from the previous close, on volume of 129,573 shares (30-day average 264,220).
Data as of October 22, 2026.
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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.
Seaport Therapeutics trades on the NASDAQ stock market under the symbol SPTX.
As of October 22, 2026, SPTX stock price climbed to $20.76 with 129,573 million shares trading.
SPTX has a beta of 0.32, meaning it tends to be less sensitive to market movements. SPTX has a correlation of 0.00 to the broad based SPY ETF.
SPTX has a market cap of $1.11 billion. This is considered a Small Cap stock.
The top ETF exchange traded funds that SPTX belongs to (by Net Assets): VTI, IWM, VXF, PSIL, VTWO.
SPTX support price is $18.60 and resistance is $20.86 (based on 1 day standard deviation move). This means that using the most recent 20 day stock volatility and applying a one standard deviation move around the stock's closing price, stastically there is a 67% probability that SPTX shares will trade within this expected range on the day.
