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3 ·Filed Apr 30, 2026

SPTX

Seaport Therapeutics, Inc.
NEUTRAL
Impact 2/10
Horizonimmediate Processed5mo ago SEC0001193125-26-198531
Actionable Insight • Neutral

No trading signal from these routine initial filings. Monitor for future Form 4 filings for insider transactions that may indicate sentiment.

DirectionNeutral
Confidencehigh
Horizonimmediate
Final — all horizons settled through T+60d ⚠ clustered
SPTX ▲ +0.30% at T+60d
NEUTRAL call +0.30% · α vs SPY -2.77% · entry $19.84 → $19.90
Entry = T+0 close
Apr 30, 2026
via day close
T+1d
-14.31%
call -14.31% · α -13.97%
$17.00
settled 6mo ago
T+5d
-19.10%
call -19.10% · α -21.45%
$16.05
settled 6mo ago
T+20d
-13.66%
call -13.66% · α -18.94%
$17.13
settled 5mo ago
T+60d
+0.30%
call +0.30% · α -2.77%
$19.90
settled 3mo ago

Price Chart

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Executive Summary

CEO Daphne Zohar and director Sandra E. Peterson filed initial beneficial ownership statements (Form 3) for Seaport Therapeutics, disclosing their holdings of common stock and stock options. These are routine initial filings required upon becoming reporting persons, with no material financial impact or change in company operations.

Key Facts

  • CEO Daphne Zohar filed Form 3 disclosing 1,194,001 shares of common stock and options to buy 2,311,259 shares at $3.05, 182,485 shares at $7.39, and 271,813 shares at $10.31.
  • Director Sandra E. Peterson filed Form 3 disclosing options to buy 77,042 shares at $7.39 and 12,258 shares at $10.31.
  • Both filings include standard powers of attorney for Section 16 compliance.
  • Filing date: April 30, 2026; period of report: April 30, 2026.

Financial Impact

No financial impact; routine insider ownership disclosure.

Investment Themes

Documents Analyzed

This report is based on 8 SEC documents filed with EDGAR.

DocumentAccession Number
3 Filing (SPTX) — Batch item 10001193125-26-198531
Document: 0001193125-26-198531-index-headers.html0001193125-26-198532
Document: 0001193125-26-198531-index.html0001193125-26-198531
Document: 0001193125-26-198531.txt0001193125-26-198531
3 Filing (SPTX) — Batch item 50001193125-26-198532
Document: 0001193125-26-198532-index-headers.html0001193125-26-198531
Document: 0001193125-26-198532-index.html0001193125-26-198531
Document: 0001193125-26-198532.txt0001193125-26-198531
10 reports for SPTX
Performance horizon

Track record builds as more directional reports settle.

Filters
Rows
Reports for SPTX — sortable, filterable
TypeNow
Aug 3, 2026
12w ago
8-K
NEUTRAL ★ 5/10
$20.65awaiting T+60—$21.28 (+3.05%)
Jun 8, 2026
20w ago
8-K
NEUTRAL ★ 4/10
$16.20 $23.61▲ +45.74%▲ +42.69%$21.28 (+31.36%)
May 6, 2026
24w ago
3
NEUTRAL ★ 3/10
$15.50 $20.65▲ +33.23%▲ +29.39%$21.28 (+37.29%)
May 1, 2026
25w ago
424B4
BULLISH ★ 7/10
$17.00 $19.74▲ +16.12%▲ +14.26%$21.28 (+25.18%)
Apr 30, 2026
25w ago
3
NEUTRAL ★ 2/10
$19.84 $19.90▲ +0.30%▼ −2.77%$21.28 (+7.26%)
Apr 30, 2026
25w ago
3
NEUTRAL ★ 2/10
$19.84 $19.90▲ +0.30%▼ −2.77%$21.28 (+7.26%)
Apr 30, 2026
25w ago
3
NEUTRAL ★ 2/10
$19.84 $19.90▲ +0.30%▼ −2.77%$21.28 (+7.26%)
Apr 30, 2026
25w ago
3
NEUTRAL ★ 2/10
$19.84 $19.90▲ +0.30%▼ −2.77%$21.28 (+7.26%)
Apr 30, 2026
25w ago
3
NEUTRAL ★ 2/10
$19.84 $19.90▲ +0.30%▼ −2.77%$21.28 (+7.26%)
Apr 27, 2026
26w ago
S-1/A
BULLISH ★ 8/10
—awaiting T+60——
Showing 10 of 10

US Market Status

Market Closed — Opens Wed (17h 19m)

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Report published Apr 30, 2026