Score Breakdown
Dilution Forecast
Market Data
Source-Backed Evidence Depth
This public preview uses stored DilutionWatch fields and linked SEC/market records only. Missing values are not estimated.
| Field | Current Value | Basis |
|---|---|---|
| DilutionScore | 48/100 | DilutionWatch score record |
| Shares Outstanding | 53.53M | Verified float table or market cache |
| Public Float | 2.89M | Verified float table or market cache |
| Market Cap | $1.14B | Market data cache |
| Cash Runway | 35.4 months | DilutionWatch score inputs |
| Shelf Capacity | None in current score inputs | SEC-derived dilution fields |
| ATM Capacity | None in current score inputs | SEC-derived dilution fields |
| Outstanding Warrants | None in current score inputs | SEC-derived dilution fields |
Recent source-backed SEC insight records available on this page: 2.
Recent SEC source mix: 4 1, SC 13G 1.
The page does not infer future share issuance, financing probability, cash needs, management intent, or price impact when source fields are absent.
SPTX SEC Filing Activity — Last 12 Months
Shares outstanding reported by SPTX on the cover page of its latest 10-K/10-Q: 53.53M as of July 27, 2026.
DilutionWatch recorded no shelf, registration or prospectus documents for SPTX in the last 12 months. Full filing list on SEC EDGAR →
| Form | What it is | Filings | Most recent |
|---|---|---|---|
| 8-K | current report (material event) | 2 | Aug 03, 2026 |
| 10-Q | quarterly report | 2 | Aug 03, 2026 |
| SC 13G | passive >5% holder filing | 2 | Aug 05, 2026 |
| 3 | initial insider ownership | 1 | Jun 24, 2026 |
Institutional Holdings
Short Interest
Recent SEC Activity
Recent News
Factual SPTX Dilution Snapshot
Seaport Therapeutics, Inc. (SPTX) has a DilutionScore of 48/100, rated Medium dilution risk. Score date: October 28, 2026.
- Recent SEC activity tracked for SPTX: SC 13G on 2026-08-05; 4 on 2026-06-24.
This automatically generated snapshot is assembled from stored DilutionWatch data fields and may contain data-source errors or omissions. It is not financial advice, not investment research, and not a recommendation. Do your own research and review the full disclaimer and terms of service.
DilutionScore History — Last 90 Days
SPTX's DilutionScore is currently 48/100 (Medium risk), with 1 score change tracked over 89 days. The score deteriorated from 57/100 (High risk).
| Period | Score | Risk Level | Duration |
|---|---|---|---|
| Oct 14 – Oct 28, 2026 | 48/100 | MEDIUM | 15 days |
| Jul 31 – Oct 13, 2026 | 57/100 | HIGH | 74 days |
Score recalculated daily from SEC filings and market data. Sign up free for real-time score change alerts.
Share Dilution History
SPTX shares outstanding have decreased 0.0% from 53.03M (May 2026) to 53.03M (May 2026). Each increase represents potential dilution to existing shareholders.
| Date | Shares Outstanding | Public Float | Change |
|---|---|---|---|
| May 16, 2026 | 53.03M | 2.89M | ▼ 12.75% |
| May 09, 2026 | 53.03M | 3.32M | ▼ 4.85% |
| May 07, 2026 | 53.03M | 3.48M | ▼ 55.05% |
Share counts sourced from verified regulatory filings. Increases indicate dilution events.
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