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NASDAQ: SPTX
Seaport Therapeutics Inc Stock Ownership - Who owns Seaport Therapeutics?

OverviewForecastEarningsRevenueDividendOwnership

Insider buying vs selling

Have Seaport Therapeutics Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Robert J. HombachDirector2026-06-2213,000$18.14
$235.77kBuy
Arch Venture Partners XII LLC10% Owner2026-05-041,100,000$18.00
$19.80MBuy

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Net Insider Buy/Sell (L12M) Ownership

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SPTX Shareholders

What type of owners hold Seaport Therapeutics Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Puretech Health PLC31.17%16,685,013$341.38MInsider
Arch Venture Partners XII LLC11.76%6,294,951$128.79MInsider
Gap Coinvestments Cda LP11.40%6,101,582$124.84MInsider
General Atlantic Sp LP11.40%6,101,582$124.84MInsider
James Healy5.10%2,731,538$55.89MInsider
Daphne Zohar2.23%1,194,001$24.43MInsider
Steven M. Paul1.61%863,031$17.66MInsider
Lana Gladstein0.06%33,515$685.72kInsider
Antony Loebel0.04%20,109$411.43kInsider
Denice Torres0.03%13,406$274.29kInsider

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SPTX vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
SPTX0.00%74.84%Net BuyingNet Buying
MGTX58.25%41.75%Net SellingNet Selling
WVE77.32%22.68%Net Buying
CRVS68.16%31.84%Net BuyingNet Buying
SVRA45.77%54.23%Net SellingNet Buying
View Top Biotech Stocks

Seaport Therapeutics Stock Ownership FAQ

Who owns Seaport Therapeutics?

Seaport Therapeutics (NASDAQ: SPTX) is owned by 0.00% institutional shareholders, 74.84% Seaport Therapeutics insiders, and 25.16% retail investors. Puretech Health PLC is the largest individual Seaport Therapeutics shareholder, owning 16.69M shares representing 31.17% of the company. Puretech Health PLC's Seaport Therapeutics shares are currently valued at $341.38M.

If you're new to stock investing, here's how to buy Seaport Therapeutics stock.
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