Seaport Therapeutics (SPTX) Stock Price, News & Analysis
What Changed
Price Move History
- Daily moves over 5%
- 36 131 sessions, May 1, 2026 to November 5, 2026
- Largest daily move
- +16.6% close of July 8, 2026
- 1-month change
- +10.2% closing prices, October 5, 2026 to November 5, 2026
Company Description
Seaport Therapeutics (NASDAQ: SPTX) is classified in the biotechnology industry within the Healthcare sector and carries a market capitalization of $1.1B.
SPTX has gained 10.2% over the past month. The last closing price was $20.39.
This page collects what Stock Titan holds for SPTX, including price data, latest news, SEC filings, insider trading activity, upcoming events, and short interest trends.
Stock Performance
Seaport Therapeutics (SPTX) closed at $20.39 on November 5, 2026. Over the past month, the price has gained 10.2%.
SPTX Metrics & Rankings
Price returns through November 5, 2026. Month and year figures include the first trading day. Ranking links may use different dates.
Latest News
Seaport Therapeutics has 10 recent news articles, with the latest published 4 days ago. Of the recent coverage, 6 articles coincided with positive price movement and 4 with negative movement. Key topics include earnings, clinical trial. View all SPTX news →
SEC Filings
Seaport Therapeutics has filed 10 recent SEC filings, including 3 Form 10-Q, 3 Form SCHEDULE 13G, 2 Form 4, 2 Form 8-K. The most recent filing was submitted on . SEC filings provide transparency into a company's financial condition, material events, and regulatory compliance. View all SPTX SEC filings →
Insider Radar
Insider buying activity at Seaport Therapeutics over the past 90 days may reflect management confidence in the company's direction. Institutional investors and analysts often monitor insider purchases as a potential bullish indicator for the stock.
Financial Highlights
Upcoming Events
Stifel healthcare conference
Investor one-on-ones
Stifel conference presentation
BUOY-1 topline data
BUOY-1 topline readout
Phase 2/3 start window
Phase 2/3 trial start
BUOY-1 topline results
GlyphAllo Phase 2b Readout
GlyphAgo Phase 2/3 Start
Phase 2a results
Phase 2a topline data
Phase 2a topline results
Topline data expected
GlyphAgo Phase 2a Readout
GlyphAgo Phase 2/3 Readout
Phase 2/3 topline data
Phase 2/3 topline results
Seaport Therapeutics has 18 upcoming scheduled events. The next event, "Stifel healthcare conference", is scheduled for November 10, 2026 (in 4 days). Investors can track these dates to stay informed about potential catalysts that may affect the SPTX stock price.
Short Interest History
Short interest in Seaport Therapeutics (SPTX) currently stands at 3.7 million shares, up 1.9% from the previous reporting period, representing 14.1% of the float. Since May 2026, short interest has increased by 154.8%.
Days to Cover History
Days to cover for Seaport Therapeutics (SPTX) currently stands at 17.9 days, up 100.3% from the previous period. The ratio is the reported short interest divided by the average daily trading volume. Since May 2026, the figure has increased by 939%. Across the settlements charted above, it has ranged from 1.7 to 30.8 days.
SPTX Company Profile & Sector Positioning
Seaport Therapeutics (SPTX) operates in the Biotechnology industry within the broader Healthcare sector and is listed on the NASDAQ.
Investors comparing SPTX often look at related companies in the same sector, including Maravai LifeSciences Holdings, Inc. (MRVI), Janux Therapeutics, Inc. (JANX), Immatics N.V. (IMTX), Odyssey Therapeutics, Inc. (ODTX), and Mannkind Corporation (MNKD). Comparing financial metrics, valuation ratios, and stock performance across these peers can help investors evaluate SPTX's relative position within its industry.