Seaport Therapeutics, Inc. (SPTX)

NASDAQ

$22.47

$+1.29

(+6.13%)

After-Hours

Seaport Therapeutics, Inc. (SPTX) Live Price Chart

Last updated: ⁦2026-09-22 22:26:00⁩. Prices reflect the latest after-hours trading data. Stock price data is sourced from Massive.

Summary

Seaport Therapeutics, Inc. (SPTX) operates in the PHARMACEUTICAL PREPARATIONS sector and is listed on NASDAQ. The stock is currently priced at $22.47, with a market capitalization of $1.15B and a P/E ratio of --. Over the past 52 weeks, its price has ranged from $14.85 to $28.38. This page covers its latest market performance, valuation, price trends and company information.

Key Market Data

Market Cap	$1.15B
Open	$21.20
Day's High	$28.38
Day's Low	$14.85
Previous Close	$21.12
Volume	120.57K
Average Volume	176.51K
P/E Ratio	--
52-Week High	$28.38
52-Week Low	$14.85
Dividend Yield	--
Earnings Date	--

Seaport Therapeutics, Inc. (SPTX) After-Hours Stock Price

Seaport Therapeutics, Inc. (SPTX) is trading at $22.46 in after-hours trading as of 2026-09-22 20:55:00, up 6.34% ($1.34) from the regular-session close of $21.12.

After-hours trading shows how investors are pricing SPTX after the regular session closes. The current after-hours price is above the regular-session close, indicating positive after-hours sentiment.

Seaport Therapeutics, Inc. (SPTX) 7-Day Stock Price Change

Over the past seven days, Seaport Therapeutics, Inc. (SPTX) moved from $23.34 to $22.47, representing a decline of 3.74% ($0.87).

The stock traded between $20.28 and $25.37 during the period. The latest price is near the middle of the 7-day range, indicating moderate downward.

The average daily volume was 474.51 thousand shares, up versus the previous seven-day period, indicating higher trading activity.

SPTX 52-Week Price Position

Position in Range: 56.3%

52W Low$14.85

52W High$28.38

SPTX is currently trading at $22.47, placing it 56.3% of the way from its 52-week low of $14.85 to its 52-week high of $28.38. This percentage reflects the stock's relative position within its 52-week trading range, not its valuation or future performance.

What is Seaport Therapeutics, Inc. (SPTX)?

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, Inc. Information

Industry	PHARMACEUTICAL PREPARATIONS
Exchange	NASDAQ
Company Website	https://www.seaporttx.com

How to Buy Seaport Therapeutics, Inc. (SPTX) Stock on MEXC

Eligible investors can buy real shares of Seaport Therapeutics, Inc. (SPTX) through MEXC RealStocks. Follow these three steps to open a RealStocks account, transfer USDT, and place a US stock order.

Step 1: Open and Verify Your RealStocks Account

Log in to the MEXC App, go to Trade → RealStocks, and select Open Account. Complete the required account-opening and identity verification process with MEXC's partner licensed broker.

Step 2: Transfer USDT to Your RealStocks Account

Go to Wallets → RealStocks and transfer USDT from your Spot Account to your RealStocks Account. RealStocks are quoted in USD, while account funding can be completed using USDT.

Step 3: Search for SPTX and Place Your Order

Open the RealStocks trading page and search for SPTX. Select a market or limit order, enter the price and quantity as required, review the order details, and submit your order. Once filled, the corresponding real shares will be held in your RealStocks Account.

Frequently Asked Questions (FAQ)

1.What is Seaport Therapeutics, Inc. (SPTX) stock price today?

Seaport Therapeutics, Inc. (SPTX) is currently trading at $ 22.47, up 6.37% ($1.35) from the previous close of $ 21.12. Intraday prices update in real time during regular trading hours.

2.Is SPTX stock going up or down today?

As of 2026-09-22 20:55:00, SPTX is trading at $ 22.47, up 6.37% ($1.35) from its previous close of $ 21.12. The stock has traded between $ 14.85 and $ 28.38 during today’s regular session. Past price movements do not guarantee future results.

3.What is SPTX pre-market price?

As of 2026-09-22 20:55:00, SPTX is trading at $ 21.12 in pre-market trading, down 0.00% ($0.00) from the previous close of $ 21.12. Pre-market prices reflect trading activity before the regular session opens and may experience lower liquidity and higher volatility.

4.What is SPTX after-hours price?

As of 2026-09-22 20:55:00, SPTX is trading at $ 22.46 in after-hours trading, up 6.34% ($1.34) from the regular-session close of $ 21.12. After-hours prices may differ from the regular session’s opening price due to lower liquidity and wider bid-ask spreads.

5.Is SPTX stock trading now?

SPTX trades on the NASDAQ exchange during regular hours, Monday through Friday, 9:30 AM to 4:00 PM ET, excluding public holidays. Pre-market and after-hours trading are also available through select brokers outside these hours.

6.Where does SPTX sit relative to its 52-week high and low?

Over the past 52 weeks, SPTX has traded between a low of $ 14.85 and a high of $ 28.38. At $ 22.47, the stock is positioned 56.3% of the way from its 52-week low to its 52-week high, providing context for its current price within the one-year trading range.

7.What sector is Seaport Therapeutics, Inc. in?

Seaport Therapeutics, Inc. (SPTX) operates in the PHARMACEUTICAL PREPARATIONS sector. Sector classification helps investors compare it with companies exposed to similar market trends and competitive conditions.

8.What is Seaport Therapeutics, Inc.'s market capitalization and where is it listed?

Seaport Therapeutics, Inc. is listed on the NASDAQ exchange with a market capitalization of $ 1.15B. Market cap reflects the total market value of all outstanding shares and is commonly used to classify stocks by size.

9.How is SPTX valued in terms of P/E ratio and EPS?

SPTX trades at a P/E ratio of --, based on trailing-twelve-month EPS of --. P/E ratio compares the stock price to earnings per share and is a common starting point for assessing valuation relative to peers.

10.Does Seaport Therapeutics, Inc. pay a dividend?

Seaport Therapeutics, Inc. pays an indicated annual cash dividend of $ 0.00 per share, with a current dividend yield of --% based on the latest share price. Dividend policies are subject to change at the board's discretion.