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Seaport Therapeutics, Inc. SPTX

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21.50 USD +1.11 (+5.44%)

At closeNov 6, 2026, 4:42 PM EST

21.50 0.00 0.00%

After hours · Nov 6, 4:42 PM ET

19.77 Day range 21.75
15.25 52-week range 27.84
YTD
+8.37%
1 year
+8.37%
Market cap
1.15B
EPS (ttm)
-4.35
Shares out
53.53M
Forward P/E
-9.00
YTD return
+8.37%
1-year return
+8.37%
Volume
227.03K
Avg volume
225.78K
Open
20.85
Previous close
20.39
Day's range
19.77 – 21.75
52-week range
15.25 – 27.84
Analysts
Strong Buy
Price target
37.00 (+72.1%)
Earnings date
Feb 1, 2027

5D +1.61 (+8.09%)

2021MonTueWedThuFri21.50

Key statistics

Enterprise value
805.74M
PEG ratio
0.00
Price / sales
0.00
Price / book
2.90
Dividend yield
0.00%
Payout ratio
0.00%
Revenue growth
0.00%
Free cash flow
0
Total cash
290.43M
Total debt
4.69M
Return on equity
0.00%
Short % of float
7.30%
50-day average
20.77
200-day average
20.14

Financials — quick view

All financials
SPTX Revenue — quarterly 0
2025-Q1 20252025-Q2 20252025-Q3 20252026-Q1 20262026-Q2 20262026-Q3 2026
SPTX Net income — quarterly -26.39M
2025-Q1 20252025-Q2 20252025-Q3 20252026-Q1 20262026-Q2 20262026-Q3 2026
SPTX EPS — quarterly -0.49
2025-Q1 20252025-Q2 20252025-Q3 20252026-Q1 20262026-Q2 20262026-Q3 2026

Earnings

SPTX recent earnings
Report dateQuarter endingEPS estimateEPS reportedSurpriseSurprise %
Feb 1, 2027Dec 30, 2026-0.59———
Nov 2, 2026Sep 30, 2026-0.56848-0.49+0.08+13.81%
Aug 3, 2026Jun 30, 2026-0.62039-1.78-1.16-186.92%
Apr 10, 2026Mar 31, 2026-5.34-5.50-0.16-2.98%

Upgrades / downgrades

SPTX analyst upgrades and downgrades
DateFirmActionFromTo
Nov 5, 2026JP MorganmainOverweightOverweight
Oct 14, 2026Canaccord Genuityinit—Buy
Oct 8, 2026HC Wainwright & Co.reitBuyBuy
Sep 25, 2026Raymond Jamesinit—Strong Buy
Sep 10, 2026HC Wainwright & Co.reitBuyBuy
Aug 26, 2026Jones Tradinginit—Buy

About Seaport Therapeutics, Inc.

Seaport Therapeutics, Inc., a clinical-stage therapeutics company, focuses on inventing and developing new medicines for patients with depression, anxiety, and other debilitating neuropsychiatric disorders. It is leveraging its proprietary Glyph platform to advance a pipeline of therapies to address the unmet needs in depression and anxiety. The company's lead product candidate, GlyphAllo (SPT-300 or Glyph Allopregnanolone), is a novel, Glyphed oral prodrug of allopregnanolone, an endogenous molecule that has been clinically validated in third-party trials for the treatment of postpartum depression. Its second product candidate, GlyphAgo (SPT-320 or Glyph Agomelatine), is a novel, Glyphed oral prodrug of agomelatine, a clinically validated anxiolytic and antidepressant that is approved for the treatment of generalized anxiety disorder in Australia and major depressive disorder in Australia and the European Union. The company was founded in 2024 and is based in Boston, Massachusetts.

Sector
Healthcare
Industry
Biotechnology
Country
United States

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Insider holders

SPTX insider holders
InsiderRelationLatest transactionDateShares held
ARCH VENTURE PARTNERS XII, LLCBeneficial Owner of more than 10% of a Class of SecurityPurchaseMay 3, 20260
CHEN MICHAEL CUNYUAN PH.D.OfficerConversion of Exercise of derivative securityMay 3, 20263,351
GLADSTEIN LANA J.D.General CounselConversion of Exercise of derivative securityMay 3, 202633,515
HEALY JAMES IDirectorConversion of Exercise of derivative securityMay 3, 20260
HOMBACH ROBERT J. CPADirectorPurchaseJun 21, 20260
LOEBEL ANTONY M.D.OfficerConversion of Exercise of derivative securityMay 3, 202620,109

Institution ownership

SPTX institution ownership
Holder% heldSharesValueReported
Arch Venture Management, Llc11.76%6,294,951135.34MJun 29, 2026
General Atlantic, L.P.11.40%6,101,582131.18MJun 29, 2026
Sofinnova Investments, Inc.6.66%3,564,87176.64MJun 29, 2026
Goldman Sachs Group Inc4.07%2,178,64246.84MJun 29, 2026
Trv Gp VI, LLC 3.85%2,061,22244.32MJun 29, 2026
Canada Pension Plan Investment Board3.69%1,975,79142.48MJun 29, 2026

Fund ownership

SPTX fund ownership
Holder% heldSharesValueReported
JPMorgan Trust II-JPMorgan Small Cap Growth Fund1.57%840,93118.08MJun 29, 2026
Fidelity Mt. Vernon Street Trust-Fidelity Growth Company Fund0.92%494,89010.64MSep 29, 2026
Prudential Sector Funds, Inc.-PGIM Jennison Health Sciences Fund0.82%438,7549.43MAug 30, 2026
VANGUARD INDEX FUNDS-Vanguard Total Stock Market Index Fund0.80%426,3719.17MJun 29, 2026
iShares Trust-iShares Russell 2000 ETF0.66%355,1597.64MSep 29, 2026
T. Rowe Price Health Sciences Fund, Inc.0.56%299,3196.44MJun 29, 2026