OakChart

Seaport Therapeutics Inc

SPTXHealthcare·Biotechnology·USA·Small·NASD·Nov 11 • 3:59 PM ET

21.31-0.66 (-3.00%)
2026-11-12 02:38 CET
Market cap
1,176.07 USD m
Revenue, TTM
0.00 USD m
Net income, TTM
-138.54 USD m
Free cash flow, TTM
-95.67 USD m
EPS diluted, TTM
-2.59
P/E
-
Compare

Price

SPTX against its 20 and 50-day averages
2050beatmiss
15.0020.0025.001.1M2.2MVolumeMay 26Jun 26Jul 26Aug 26Sep 26Oct 26Nov 26SPTXclose 21.3120-day 20.2550-day 20.5521.3152w high52w low

24.9% under the 52-week high of 28.38 on 27 Aug 2026. 52-week low 14.85 on 7 May 2026. Last 15 sessions, 19.4% high to low

Volume 0.97× normal · the line is the 50-bar volume average

Profile

SPTX
52-week range, 48% of the way up
14.8528.38

Seaport Therapeutics, Inc. is a clinical-stage therapeutics company, which engages in the provision of inventing and developing new medicines for patients with depression, anxiety, and other debilitating neuropsychiatric disorders. The company was founded on April 1, 2024 and is headquartered in Boston, MA.

IndexRUT
Employees54
IPOMay 01, 2026
ATR, 14d1.51
Rel volume0.97
Short float27.05%
Insider own74.22%
Inst own32.40%

Snapshot

6 groups

Valuation

IndexRUT
Market Cap1.14B
Enterprise Value855.00M
Income-138.54M
Sales0.00M
Book/sh7.42
Cash/sh5.43
Dividend Est.-
Dividend TTM-
Dividend Ex-Date-
Dividend Gr. 3/5Y- -
Payout-
Employees54
IPOMay 01, 2026

Ratios

P/E-
Forward P/E-
PEG-
P/S-
P/B2.87
P/C3.93
P/FCF-
EV/EBITDA-
EV/Sales-
Quick Ratio17.48
Current Ratio17.48
Debt/Eq0.01
LT Debt/Eq0.01
Option/ShortNo / Yes

Earnings

EPS (ttm)-2.59
EPS next Y-2.45
EPS next Q-0.56
EPS this Y86.89%
EPS next Y40.61%
EPS next 5Y57.09%
EPS past 3/5Y- -
Sales past 3/5Y- -
EPS Y/Y TTM-
Sales Y/Y TTM-
EPS Q/Q-17.10%
Sales Q/Q-
EarningsNov 02 BMO
EPS/Sales Surpr.13.81% -

Ownership

Insider Own74.22%
Insider Trans0.05%
Inst Own32.40%
Inst Trans51.56%
ROA-
ROE-
ROIC-34.59%
Gross Margin-
Oper. Margin-
Profit Margin-
SMA205.22%
SMA503.68%
SMA2005.58%
Trades-

Technical

Shs Outstand53.53M
Shs Float13.80M
Short Float27.05%
Short Ratio16.08
Short Interest3.73M
52W High28.38 -24.92%
52W Low14.85 43.50%
Volatility6.55% 7.41%
ATR (14)1.51
RSI (14)55.29
Beta-
Rel Volume0.97
Avg Volume232.15K
Volume225,271

Performance

Perf Week1.67%
Perf Month32.52%
Perf Quarter-10.12%
Perf Half Y29.15%
Perf YTD1.48%
Perf Year-
Perf 3Y-
Perf 5Y-
Perf 10Y-
Recom1.22
Target Price37.12
Prev Close21.97
Price21.31
Change %-3.00%

Analyst ratings

latest 7 of 7
DateActionAnalystRating changeTargetImplied
Oct 14, 2026InitiatedCCanaccord GenuityBuy$28+31.4%
Sep 25, 2026InitiatedRRaymond JamesStrong Buy$46+115.9%
Jul 15, 2026InitiatedHH.C. WainwrightBuy$50+134.6%
May 26, 2026InitiatedSStifelBuy$30+40.8%
May 26, 2026InitiatedLLeerink PartnersOutperform$35+64.2%
May 26, 2026InitiatedJJP MorganOverweight$42+97.1%
May 26, 2026InitiatedCCitigroupBuy$35+64.2%

Peers

Mkt cap
TickerCompanyMkt cap
ANROAlto Neuroscience Inc1.22B
AXSMAxsome Therapeutics Inc7.85B
LBRXLB Pharmaceuticals Inc1.45B
ACADAcadia Pharmaceuticals Inc3.17B
CMPSCompass Pathways Plc ADR1.32B
PRAXPraxis Precision Medicines Inc9.68B
RAPPRapport Therapeutics Inc1.60B
SUPNSupernus Inc6.12B
ALKSAlkermes plc8.05B
ABOSAcumen Pharmaceuticals Inc16.64M

Insider trading

3 filings
InsiderRelationshipDateTransactionCostSharesValueTotal heldForm
Torres DeniceDirectorNov 03 '26Buy19.865,00099,3255,000Nov 04 07:30 AM
HOMBACH ROBERT J.DirectorJun 22 '26Buy18.1413,000235,76813,000Jun 24 06:05 AM
ARCH Venture Partners XII, LLC10% OwnerMay 04 '26Buy18.001,100,00019,800,0006,294,951May 04 06:02 PM

Held by

AUM
TickerCompanyAUM
VTIVanguard Morningstar Total Stock Market ETFAUM: 687.42B
IWMiShares Russell 2000 Index FundAUM: 77.38B
VXFVanguard Extended Market Index ETFAUM: 30.47B
PSILAdvisorShares Psychedelics ETFAUM: 43.26M
IWOiShares Russell 2000 Growth ETFAUM: 14.06B
SCHASchwab U.S. Small-Cap ETFAUM: 22.25B
VTWOVanguard Russell 2000 Index ETFAUM: 16.75B
SBIOALPS Medical Breakthroughs ETFAUM: 192.65M
IWNiShares Russell 2000 Value ETFAUM: 14.10B
IWCiShares Micro-Cap ETFAUM: 1.22B

Quarterly earnings

actual against estimate
PeriodReportedEPS actEPS estEPS repSales actSales estAnalysts
2026Q32026-11-02-0.490-0.569-0.4910.000.009
2026Q22026-08-03-1.780-0.620-1.1690.000.007
2026Q12026-06-08-10.340-5.336-0.4750.000.005
2025Q42026-02-25-5.495--0.4510.00--
2026Q4---0.557--0.0010
2027Q1---0.567--0.007
2027Q2---0.586--0.007
2027Q3---0.605--0.007
2027Q4---0.614--0.005

Annual earnings

PeriodEPS actEPS estEPS repSales actSales est
2025FY-22.949--31.5400.00-
2026FY--4.133--0.00
2027FY--2.455--0.00
2028FY--2.492--0.00
2029FY--2.653--0.00
2030FY--3.205--3.15

Estimate revisions

last 14 periods
PeriodTypeDateEstimatesUpDownMeanLowHigh
2026Q4S2026-11-027000.000.000.00
2026Q4S2026-10-227000.000.000.00
2026Q4S2026-10-148000.000.000.00
2026Q4S2026-10-139000.000.000.00
2026Q4S2026-09-248000.000.000.00
2026Q4S2026-08-247000.000.000.00
2026Q4S2026-08-036000.000.000.00
2026Q4S2026-07-146000.000.000.00
2026Q4S2026-07-065000.000.000.00
2026Q4S2026-06-084000.000.000.00
2026Q4S2026-05-264000.000.000.00
2026Q4S2026-05-253000.000.000.00
2026Q4S2026-05-222000.000.000.00
2026Q4R2026-11-04410-0.58-0.69-0.54

Estimate history

EPS, annual-0.876-1.399-2.588
Period20242025TTM
EPS, quarterly-0.245-0.282-0.421-0.451-0.475-1.169-0.493
PeriodQ1 '25Q2 '25Q3 '25Q4 '25Q1 '26Q2 '26Q3 '26
Sales, annual000
Period20242025TTM
Sales, quarterly0000000
PeriodQ1 '25Q2 '25Q3 '25Q4 '25Q1 '26Q2 '26Q3 '26
Shares, annual53.53153.53153.531
Period20242025MRQ
Shares, quarterly53.53153.53153.53153.53153.53153.53153.531
PeriodQ1 '25Q2 '25Q3 '25Q4 '25Q1 '26Q2 '26Q3 '26

Income statement, annual

Currency USD, millions
MetricTTM2025FY2024FY
Total Revenue0.000.000.00
Cost of Goods Sold Incl. D&A1.431.410.21
Gross Profit-1.43-1.41-0.21
Selling, General and Administrative Excl. Other149.4785.8952.20
Research and Development91.8666.3125.07
Other Operating Expense0.000.000.00
Operating Income-150.90-87.29-52.42
Interest Expense0.000.000.00
Unusual Expense0.000.000.00
Net Income Before Taxes-139.24-76.01-46.88
Income Taxes-0.70-1.120.00
Consolidated Net Income-138.54-74.88-46.88
Net Income From Continuing Operations-138.54-74.88-46.88
Net Income-138.54-74.88-46.88
EPS (Recurring)-2.59-1.40-0.88
EPS (Basic, Before Extraordinaries)-2.59-1.40-0.88
EPS (Diluted)-2.59-1.40-0.88
EBITDA-149.47-85.89-52.20
Non-Operating Income (Expense)11.6611.295.54
Other After Tax Adjustments0.000.000.00
Stock Option Compensation Expense33.745.4411.47
Shares Outstanding53.5353.5353.53
Market Capitalization1,176.071,176.07-

Income statement, quarterly

Currency USD, millions
Metric2026Q32026Q22026Q12025Q42025Q32025Q22025Q1
Total Revenue0.000.000.000.000.000.000.00
Cost of Goods Sold Incl. D&A0.360.350.360.360.370.350.32
Gross Profit-0.36-0.35-0.36-0.36-0.37-0.35-0.32
Selling, General and Administrative Excl. Other29.9965.4627.1926.8425.0718.1215.87
Research and Development23.8924.6221.4321.9220.4513.4110.53
Other Operating Expense0.000.000.000.000.000.000.00
Operating Income-30.34-65.81-27.54-27.20-25.44-18.47-16.18
Interest Expense0.000.000.000.000.000.000.00
Unusual Expense0.000.000.000.000.000.000.00
Net Income Before Taxes-26.43-62.59-25.46-24.76-22.59-15.55-13.09
Income Taxes-0.040.01-0.05-0.63-0.05-0.480.03
Consolidated Net Income-26.39-62.60-25.41-24.14-22.54-15.08-13.12
Net Income From Continuing Operations-26.39-62.60-25.41-24.14-22.54-15.08-13.12
Net Income-26.39-62.60-25.41-24.14-22.54-15.08-13.12
EPS (Recurring)-0.49-1.17-0.47-0.45-0.42-0.28-0.25
EPS (Basic, Before Extraordinaries)-0.49-1.17-0.47-0.45-0.42-0.28-0.25
EPS (Diluted)-0.49-1.17-0.47-0.45-0.42-0.28-0.25
EBITDA-29.99-65.46-27.19-26.84-25.07-18.12-15.87
Non-Operating Income (Expense)3.913.222.092.442.852.923.09
Other After Tax Adjustments0.000.000.000.000.000.000.00
Stock Option Compensation Expense1.9328.412.031.361.410.921.28
Shares Outstanding53.5353.5353.5353.5353.5353.5353.53
Market Capitalization1,176.071,162.681,205.51----

Balance sheet, annual

Currency USD, millions
Metric2025FY2024FY
Cash & Short Term Investments215.98309.10
Short Term Receivables3.030.00
Inventories0.000.00
Other Current Assets4.221.05
Total Current Assets223.23310.15
Net Property, Plant & Equipment5.225.17
Total Investments and Advances17.670.00
Other Assets2.880.45
Total Assets249.01315.78
Short Term Debt Incl. Current Port. of LT Debt1.640.86
Accounts Payable2.014.73
Other Current Liabilities9.145.56
Total Current Liabilities12.7811.15
Long Term Debt3.444.15
Provision for Risks Charges0.000.00
Other Liabilities0.000.00
Total Liabilities16.2315.30
Non-Equity Reserves0.000.00
Preferred Stock - Carrying Value325.33325.33
Common Equity-92.55-24.85
Total Shareholders Equity232.78300.48
Accumulated Minority Interest0.000.00
Total Equity232.78300.48
Total Liabilities & Stockholders Equity249.01315.78
Book Value Per Share-1.73-0.46
Tangible Book Value Per Share-1.73-0.46
Full-Time Employees5455
Price to Book Ratio2.96-
Return on Assets-26.52-
Return on Equity-28.08-
Return on Invested Capital-31.70-15.39
Quick Ratio17.4627.82
Current Ratio17.4627.82

Cash flow, annual

Currency USD, millions
MetricTTM2025FY2024FY
Net Income-138.54-74.88-46.88
Depreciation1.431.410.21
Other Funds (Non Cash)42.023.4614.52
Funds from Operations-95.09-70.01-32.14
Extraordinary Item0.000.000.00
Changes in Working Capital-0.55-7.932.51
Cash from Operating Activities-95.64-77.94-29.63
Capital Expenditures-0.03-0.36-0.11
Net Assets From Acquisitions0.000.000.00
Sale of Fixed Assets and Businesses0.000.000.00
Purchase or Sale of Investments-127.86-183.890.00
Purchase of Investments-367.86-396.390.00
Sale Or Maturity of Investments240.00212.500.00
Other Uses0.000.000.00
Other Sources0.000.000.00
Cash from Investing Activities-127.88-184.25-0.11
Cash Dividends Paid0.000.000.00
Change in Capital Stock240.050.00325.33
Repurchase of Common Pref Stock0.000.000.00
Sale of Common Pref Stock240.050.00325.33
Proceedsfrom Stock Options239.240.00325.33
Issuance or Reduction of Debt, Net0.000.000.00
Change in Long Term Debt0.000.000.00
Issuance of Long Term Debt0.000.000.00
Reduction of Long Term Debt0.000.000.00
Net Financing Active Other Cash Flow-0.87-0.8713.97
Other Financing Activities Uses-0.87-0.870.00
Cash from Financing Activities239.17-0.87339.30
Exchange Rate Effect-0.030.00-
Net Change in Cash15.62-263.06309.55
Free Cash Flow-95.67-78.30-29.74
Deferred Taxes & Investment Tax Credit-0.000.00

Balance sheet, quarterly

Currency USD, millions
Metric2026Q32026Q22026Q12025Q42025Q32025Q2
Cash & Short Term Investments290.43273.31182.60215.98--
Short Term Receivables4.724.863.283.03--
Inventories0.000.000.000.00--
Other Current Assets3.904.012.464.22--
Total Current Assets299.06282.18188.34223.23--
Net Property, Plant & Equipment4.745.105.455.22--
Total Investments and Advances113.62154.2130.2917.67--
Intangible Assets0.000.00----
Other Assets0.200.203.592.88--
Total Assets417.62441.68227.67249.01--
Short Term Debt Incl. Current Port. of LT Debt1.621.611.601.64--
Accounts Payable5.815.714.792.01--
Income Tax Payable1.45-----
Other Current Liabilities8.228.367.849.14--
Total Current Liabilities17.1115.6714.2212.78--
Long Term Debt3.063.403.743.44--
Provision for Risks Charges0.000.000.000.00--
Other Liabilities0.000.000.000.00--
Total Liabilities20.1719.0817.9716.23--
Non-Equity Reserves0.000.000.000.00--
Preferred Stock - Carrying Value0.000.00325.33325.33--
Common Equity397.45422.60-115.62-92.55--
Total Shareholders Equity397.45422.60209.71232.78--
Accumulated Minority Interest0.000.000.000.00--
Total Equity397.45422.60209.71232.78--
Total Liabilities & Stockholders Equity417.62441.68227.67249.01--
Book Value Per Share7.427.89-2.16-1.73--
Tangible Book Value Per Share7.427.89-2.16-1.73--
Full-Time Employees59-5854--
Price to Book Ratio2.96-10.06-10.43---
Return on Invested Capital-6.59-14.69-11.90-10.22--
Quick Ratio17.4818.0013.2417.46--
Current Ratio17.4818.0013.2417.46--

Cash flow, quarterly

Currency USD, millions
Metric2026Q32026Q22026Q12025Q42025Q32025Q2
Net Income-26.39-62.60-25.41-24.14-22.54-15.08
Depreciation0.360.350.360.360.370.35
Other Funds (Non Cash)1.9036.502.351.260.840.57
Funds from Operations-24.14-25.75-22.70-22.51-21.33-14.15
Extraordinary Item0.000.000.000.000.000.00
Changes in Working Capital1.45-0.402.53-4.145.56-1.17
Cash from Operating Activities-22.68-26.14-20.17-26.65-15.77-15.32
Capital Expenditures0.000.000.00-0.03-0.01-0.27
Net Assets From Acquisitions0.000.000.000.000.000.00
Sale of Fixed Assets and Businesses0.000.000.000.000.000.00
Purchase or Sale of Investments20.11-203.5027.8527.6815.10-1.17
Purchase of Investments-24.89-253.50-47.15-42.32-49.90-78.67
Sale Or Maturity of Investments45.0050.0075.0070.0065.0077.50
Other Uses0.000.000.000.000.000.00
Other Sources0.000.000.000.000.000.00
Cash from Investing Activities20.11-203.5027.8527.6615.09-1.44
Cash Dividends Paid0.000.000.000.000.000.00
Preferred Dividends (Cash Flow)0.00---0.000.00
Change in Capital Stock239.240.810.000.000.000.00
Repurchase of Common Pref Stock0.000.000.000.000.000.00
Sale of Common Pref Stock239.240.810.000.000.000.00
Proceedsfrom Stock Options239.240.000.000.000.000.00
Issuance or Reduction of Debt, Net0.000.000.000.000.000.00
Change in Long Term Debt0.000.000.000.000.000.00
Issuance of Long Term Debt0.000.000.000.000.000.00
Reduction of Long Term Debt0.000.000.000.000.000.00
Net Financing Active Other Cash Flow-239.34240.12-0.78-0.870.000.00
Other Financing Activities Uses0.000.78-0.78-0.870.000.00
Cash from Financing Activities-0.10240.93-0.78-0.870.000.00
Exchange Rate Effect-0.010.03-0.03-0.030.030.00
Net Change in Cash-2.6711.316.870.11-0.64-16.77
Free Cash Flow-22.68-26.14-20.17-26.67-15.77-15.59

Revenue breakdown

Revenue split-

Short interest

shares short against float, oldest to newest
SettlementOf floatShares shortFloatAvg volume
2026-10-3027.05%3.7M13.8M208.25K
2026-10-1526.95%3.7M13.8M186.07K
2026-09-3026.45%3.6M13.8M177.99K
2026-09-1522.82%3.1M13.8M166.88K
2026-08-3122.84%3.2M13.8M161.19K
2026-08-1421.83%3.0M13.8M183.73K
2026-07-3115.75%2.8M17.5M308.53K
2026-07-1511.31%2.0M17.5M359.56K
2026-06-3015.87%2.8M17.5M407.65K
2026-06-1511.07%1.9M17.5M421.10K
2026-05-2910.30%1.8M17.0M585.58K
2026-05-158.58%1.5M17.0M882.86K

Option chain

expiry 2026-11-11
TypeStrikeBidAskLastIVOpen intVolumeDeltaThetaVega
No option chain for this symbol.

Latest SEC filings

30
FiledFormDescriptionPeriodLink
2026-11-044Statement of changes in beneficial ownership of securities2026-11-03SEC
2026-11-0210-QQuarterly report pursuant to Section 13 or 15(d)2026-09-30SEC
2026-11-028-KCurrent report2026-11-02SEC
2026-08-14SCHEDULE 13GSEC
2026-08-05SCHEDULE 13GSEC
2026-08-05SCHEDULE 13GSEC
2026-08-0310-QQuarterly report pursuant to Section 13 or 15(d)2026-06-30SEC
2026-08-038-KCurrent report2026-08-03SEC
2026-06-244Statement of changes in beneficial ownership of securities2026-06-22SEC
2026-06-0810-QQuarterly report pursuant to Section 13 or 15(d)2026-03-31SEC
2026-06-088-KCurrent report2026-06-08SEC
2026-05-11SCHEDULE 13DSEC
2026-05-11SCHEDULE 13GSEC
2026-05-064Statement of changes in beneficial ownership of securities2026-05-04SEC
2026-05-06SCHEDULE 13DSEC
2026-05-063Initial statement of beneficial ownership of securities2026-05-04SEC
2026-05-063Initial statement of beneficial ownership of securities2026-05-04SEC
2026-05-044Statement of changes in beneficial ownership of securities2026-04-30SEC
2026-05-044Statement of changes in beneficial ownership of securities2026-05-04SEC
2026-05-044Statement of changes in beneficial ownership of securities2026-04-30SEC
2026-05-044Statement of changes in beneficial ownership of securities2026-04-30SEC
2026-05-044Statement of changes in beneficial ownership of securities2026-04-30SEC
2026-05-044Statement of changes in beneficial ownership of securities2026-04-30SEC
2026-05-044Statement of changes in beneficial ownership of securities2026-04-30SEC
2026-05-044Statement of changes in beneficial ownership of securities2026-04-30SEC
2026-05-044Statement of changes in beneficial ownership of securities2026-04-30SEC
2026-05-044Statement of changes in beneficial ownership of securities2026-05-04SEC
2026-05-044Statement of changes in beneficial ownership of securities2026-04-30SEC
2026-05-044Statement of changes in beneficial ownership of securities2026-04-30SEC
2026-05-044Statement of changes in beneficial ownership of securities2026-04-30SEC

Insider activity by month

MonthBoughtBuysSoldSells
2026-1199.33K100
2026-100000
2026-090000
2026-080000
2026-070000
2026-06235.77K100
2026-0519.80M100
2026-040000
2026-030000
2026-020000
2026-010000
2025-120000
2025-110000

Institutional holders

Manager% owned
ARCH Venture Management, LLC11.76%
GENERAL ATLANTIC, L.P.11.40%
Sofinnova Investments, Inc.6.66%
GOLDMAN SACHS GROUP INC4.07%
TRV GP VI, LLC3.85%
CANADA PENSION PLAN INVESTMENT BOARD3.69%
FMR LLC3.43%
JPMORGAN CHASE & CO3.39%
Foresite Capital Management VI LLC3.32%
PRICE T ROWE ASSOCIATES INC /MD/2.44%

Funds

Fund% owned
JPMorgan Small Cap Growth Fund1.57%
PGIM Jennison Health Sciences Fund0.82%
VANGUARD TOTAL STOCK MARKET INDEX FUND0.80%
Fidelity Growth Company Fund0.79%
T. Rowe Price Health Sciences Fund, Inc.0.56%
JPMorgan Small Cap Blend Fund0.51%
Fidelity Blue Chip Growth Fund0.44%
SmallCap Fund0.34%
VANGUARD EXTENDED MARKET INDEX FUND0.31%
Fidelity Growth Company K6 Fund0.22%

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