NASDAQ: SEPN
Septerna Inc Stock Ownership - Who owns Septerna?

Insider buying vs selling

Have Septerna Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Elizabeth BhattCOO;Pres2026-10-154,000$6.81
$27.24kBuy
Elizabeth BhattCOO;Pres2026-10-152,906$37.61
$109.31kSell
Elizabeth BhattCOO;Pres2026-10-151,094$36.87
$40.34kSell
Daniel D. LongSVP2026-09-013,333$37.83
$126.08kSell
Daniel D. LongSVP2026-09-013,333$2.76
$9.20kBuy
Ra Capital Management LPDirector2026-08-12746,500$42.50
$31.73MSell
Third Rock Ventures V LP10% Owner2026-08-12147,059$50.27
$7.39MSell
Third Rock Ventures V LP10% Owner2026-08-12141$51.08
$7.20kSell
Ra Capital Management LPDirector2026-08-12746,500$42.50
$31.73MSell
Elizabeth BhattCOO;Pres2026-08-1118,681$6.81
$127.22kBuy

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Net Insider Buy/Sell (L12M) Ownership

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SEPN Shareholders

What type of owners hold Septerna Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Third Rock Ventures V LP28.78%13,432,506$591.03MInsider
Third Rock Ventures VI LP22.34%10,427,250$458.80MInsider
Ra Capital Management LP4.71%2,197,386$96.68MInsider
Jeffrey Finer1.77%826,907$36.38MInsider
Elizabeth Bhatt0.37%174,209$7.67MInsider
Uwe Klein0.27%127,533$5.61MInsider
Alan Ezekowitz0.25%117,420$5.17MInsider
Daniel D. Long0.21%96,412$4.24MInsider
Ran Xiao0.12%58,069$2.56MInsider
Gil M. Labrucherie0.09%40,000$1.76MInsider

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SEPN vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
SEPN0.10%58.91%Net SellingNet Selling
FTRE0.10%1.13%Net SellingNet Selling
VCEL0.11%10.19%Net SellingNet Buying
IMNM0.10%4.06%Net SellingNet Selling
ZYME0.10%93.93%Net SellingNet Selling

Septerna Stock Ownership FAQ

Who owns Septerna?

Septerna (NASDAQ: SEPN) is owned by 0.10% institutional shareholders, 58.91% Septerna insiders, and 40.99% retail investors. Third Rock Ventures V LP is the largest individual Septerna shareholder, owning 13.43M shares representing 28.78% of the company. Third Rock Ventures V LP's Septerna shares are currently valued at $591.03M.

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