STOCK TITAN

SEAPORT THERAPEUTICS Stock Price, News & Analysis

SPTX NASDAQ

Company Description

SEAPORT THERAPEUTICS (NASDAQ: SPTX) is a publicly traded biotechnology company in the Pharmaceutical Preparations sector. The company has a market capitalization of $972.7M, ranking #2,957 among all listed U.S. companies by market cap.

SPTX stock has declined 8.4% over the past year. Shares last traded at $18.17.

This page provides a comprehensive overview of SPTX stock, including real-time price data, latest news, SEC filings, insider trading activity, financial highlights, upcoming events, and short interest trends.

Stock Performance

$—
0.00%
0.00
Last updated:
-8.42%
Performance 1 year
$972.7M

SEAPORT THERAPEUTICS (SPTX) stock last traded at $18.17. Over the past 12 months, the stock has lost 8.4%. At a market capitalization of $972.7M, SPTX is classified as a small-cap stock with approximately 53.5M shares outstanding.

SEC Filings

SEAPORT THERAPEUTICS has filed 8 recent SEC filings, including 2 Form 10-Q, 2 Form 8-K, 2 Form SCHEDULE 13G, 1 Form 3. The most recent filing was submitted on June 8, 2026. SEC filings provide transparency into a company's financial condition, material events, and regulatory compliance. View all SPTX SEC filings →

Insider Radar

Net Buyers
90-Day Summary
7,700,000
Shares Bought
0
Shares Sold
7
Transactions
Most Recent Transaction
GILLIS STEVEN (null) bought 1,100,000 shares @ $18.00 on May 4, 2026

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.

Based on SEC Form 4 filings over the last 90 days.

Financial Highlights

Revenue (TTM)
Net Income (TTM)
Operating Cash Flow

Upcoming Events

JAN
01
January 1, 2027 - June 30, 2027 Clinical

BUOY-1 topline readout

BUOY-1 Phase 2b MDD topline readout window Jan–Jun 2027 for GlyphAllo; ~360 patients enrolling; no webcast info provided.
JAN
01
January 1, 2028 - December 31, 2028 Clinical

Topline data expected

Topline readout expected in 2028 for GlyphAgo (SPT-320) Phase 2 trials; company to report results via press release/webcast.

SEAPORT THERAPEUTICS has 2 upcoming scheduled events. The next event, "BUOY-1 topline readout", is scheduled for January 1, 2027 (in 193 days). Investors can track these dates to stay informed about potential catalysts that may affect the SPTX stock price.

Short Interest History

Last 12 Months

Short interest in SEAPORT THERAPEUTICS (SPTX) currently stands at 1.8 million shares, up 20.1% from the previous reporting period, representing 3.3% of the shares outstanding. Over the past 12 months, short interest has increased by 20.1%. The 8.1 days to cover indicates moderate liquidity for short covering.

Days to Cover History

Last 12 Months

Days to cover for SEAPORT THERAPEUTICS (SPTX) currently stands at 8.1 days, up 369.8% from the previous period. This moderate days-to-cover ratio suggests reasonable liquidity for short covering, requiring about a week of average trading volume. The days to cover has increased 369.8% over the past year, indicating either rising short interest or declining trading volume. The ratio has shown significant volatility over the period, ranging from 1.7 to 8.1 days.

SPTX Company Profile & Sector Positioning

SEAPORT THERAPEUTICS (SPTX) operates in the Biotechnology industry within the broader Pharmaceutical Preparations sector and is listed on the NASDAQ. In monthly performance, the stock ranks #963 among all tracked companies.

Frequently Asked Questions

What is the current stock price of SEAPORT THERAPEUTICS (SPTX)?

The current stock price of SEAPORT THERAPEUTICS (SPTX) is $18.17 as of June 19, 2026.

What is the market cap of SEAPORT THERAPEUTICS (SPTX)?

The market cap of SEAPORT THERAPEUTICS (SPTX) is approximately 972.7M. Learn more about what market capitalization means .