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57 /100
HIGH RISK
Score updated Jul 30, 2026

SPTX — Seaport Therapeutics, Inc. Dilution Risk Tracker

Track SPTX dilution risk with DilutionWatch's stock tracker. DilutionScore™ measures dilution risk across 5 factors — lower scores indicate higher risk of share dilution.

⚠️ Not financial advice. Do your own research before making any investment decisions.

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As of July 30, 2026, Seaport Therapeutics, Inc. (SPTX) has a DilutionWatch DilutionScore of 57/100, rated HIGH dilution risk. Seaport Therapeutics, Inc. has a market capitalization of $964.58M, 53.53M shares outstanding.

Source: DilutionWatch (dilutionwatch.com) — data updated daily from SEC EDGAR filings. Not financial advice.

Score Breakdown

📋 Offering Ability
40
💰 Cash Runway
40
📊 Float Risk
100
⚠️ Warrant Exposure
40
🔄Convertible Debt

Dilution Forecast

☀️
Clear
No significant dilution signals
0%
No significant dilution signals detected for SPTX.
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Market Data

Market Cap$964.58M
Shares Outstanding53.53M
Float2.89M
Cash$182.60M
DebtN/A
Short InterestN/A

Institutional Holdings

28.6% institutional ownership
Source: Yahoo Finance · Detailed 13F holder data available for tracked tickers
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Short Interest

Short Interest1.98M
Days to Cover12.3
% of Float68.5%
FINRA data as of Jul 15, 2026

Recent SEC Activity

No recent SEC insights

Recent News

No recent news

What This Means for SPTX Shareholders

Seaport Therapeutics, Inc. (SPTX) has a DilutionScore of 57/100, placing it in the High dilution risk tier. This score reflects at least one active dilution mechanism — a shelf registration, ATM program, outstanding warrants, or limited cash runway — that could materially increase the share count over the next 12–18 months. Score as of July 30, 2026, updated from SEC EDGAR data.

DilutionWatch's EDGAR monitoring for SPTX shows no major active dilution programs at this time. The primary risk categories — shelf registration capacity, ATM programs, warrant overhang, and cash runway — are each within normal ranges for a company of this profile. This can change quickly if a new S-3 or Form S-1 is filed.

DilutionWatch tracks over 25 SEC filing types for SPTX in real-time, scanning EDGAR every 60 seconds. The DilutionWatch shows real-time score changes for SPTX alongside comparable high-risk stocks. Not financial advice — this analysis is for informational purposes only.

Understanding SPTX's Dilution Risk Factors

Primary Risk Drivers

The most concerning factors for Seaport Therapeutics are Offering Ability and Float Risk. Offering Ability scores at a level indicating significant potential for new equity issuance, which directly increases the total number of shares outstanding. Float Risk is at maximum, signaling that a large portion of shares may be available for trading, potentially leading to volatility and further dilution pressures. These two factors together create a high-risk environment where the company can easily issue new shares without strong shareholder protections in place.

Factors Currently Not a Concern

While several risk indicators are elevated, Cash Runway and Warrant Exposure currently show low levels of concern. A low Cash Runway score means the company is not facing immediate liquidity issues that would necessitate urgent capital raising. Warrant Exposure remains manageable, suggesting limited additional shares may be issued through warrant conversions. Changes in either area could quickly shift these from low to high risk; for example, a drop in cash reserves or an increase in outstanding warrants could raise their respective scores significantly.

SEC Filings to Watch

Several filings should be monitored closely for signs of increased dilution activity. An S-3 registration statement signals potential future equity offerings, which can directly impact share count. A 424B5 filing indicates the company is offering securities under a shelf registration, often linked to planned capital raises. An 8-K Item 1.01 report may disclose new financing or equity issuance events that could increase dilution risk. Additionally, quarterly reports (10-Q) will reveal changes in share count and capital structure that could affect existing shareholders.

How Dilution Happens

Dilution occurs when the company issues new shares, increasing the total number of outstanding shares. With Offering Ability at a high level, there is potential for frequent equity issuances, possibly through public offerings or private placements. Float Risk being maximum suggests that many shares are available to trade freely, which can attract speculative interest and further pressure the share price. As more shares are issued, existing shareholders see their ownership percentage decrease unless they participate in new offerings, leading to dilution of value.

What Would Make This Worse

A worsening scenario would involve a combination of factors, such as an upcoming major equity offering, an increase in convertible notes or warrants, or a significant drop in cash reserves. These events could trigger a cascade effect where the company is forced to issue more shares to meet financial obligations, further eroding existing shareholder value. A shift in Offering Ability and Convertible Note Risk to higher levels would compound these effects, increasing the risk of substantial dilution.

Key Insight

Although dilution scores are inverted, a high score for Offering Ability or Float Risk still indicates a dangerous situation where new shares can be issued with little resistance, directly harming existing shareholders.

How to Monitor SPTX for Dilution Risk

What This Risk Level Means

For a small-cap operating company like Seaport Therapeutics, a high dilution risk profile signals significant exposure to equity issuance that could erode shareholder value. At this level, the company's capital structure is under considerable pressure, particularly due to factors such as warrant exposure and cash runway concerns. Small-cap companies often rely on frequent capital raises to fund operations, but when multiple dilutive mechanisms are active, it increases the risk of substantial dilution for existing shareholders. The elevated offering ability score indicates a strong potential for future equity issuance, while the high float risk score shows that a large portion of shares may be available for immediate sale or conversion.

What Typically Happens Next

Companies with similar profiles often proceed through strategic capital-raising activities such as shelf registrations and ATM programs to secure funding. These mechanisms allow companies to issue equity on demand, which can lead to rapid dilution if not carefully monitored. Warrant exercises are another common event that can significantly increase the number of outstanding shares, particularly when warrants have low strike prices or are nearing expiration. Convertible notes also introduce risk, as they can convert into equity at a predetermined discount, further diluting existing shareholders. Monitoring these activities is essential to anticipate potential dilutive events.

Monitoring Playbook

To track SPTX’s dilution risk effectively, use DilutionWatch to set alerts for changes in key metrics such as offering ability, cash runway, and warrant exposure. Set thresholds at 30/100 for any factor and recheck weekly or bi-weekly. If a score exceeds this threshold, review recent SEC filings for new equity offerings or convertible note activity. Additionally, monitor the Shelf & ATM Monitor to detect any new shelf registrations or ATM programs that may signal upcoming issuance.

Early Warning Signals

Three key warning signals include: 1) A sudden increase in warrant exposure, indicating imminent exercise activity; 2) A drop in cash runway below 6 months, which may force the company to seek additional funding; and 3) An increase in offering ability scores, suggesting a higher potential for new equity issuance. These changes often occur in quick succession and should be treated as red flags requiring immediate attention.

What a Positive Resolution Looks Like

A positive shift in SPTX’s dilution risk profile could result from a major capital raise that extends the cash runway, or from the expiration of outstanding warrants without exercise. A reduction in convertible note exposure or a decrease in float risk due to share buybacks would also indicate improvement. Additionally, a significant drop in offering ability scores may suggest the company has secured sufficient capital and is no longer relying on frequent equity issuance.

Watch For

Any sudden spike in cash runway or warrant exposure scores, as these changes often precede major dilutive events.

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