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NASDAQ: ETNB
89bio Inc Stock Ownership - Who owns 89bio?

OverviewForecastEarningsRevenueDividendOwnership

Insider buying vs selling

Have 89bio Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Francis Willard SarenaChief Operating Officer2025-08-052,979$9.69
$28.87kSell
Rohan PalekarChief Executive Officer2025-08-0155,836$9.16
$511.46kSell
Ryan MartinsChief Financial Officer2025-08-017,680$9.16
$70.35kSell
Quoc LenguyenChief Technical Operations Officer2025-08-017,680$9.16
$70.35kSell
Quoc LenguyenChief Technical Operations Officer2025-08-01522$9.16
$4.78kSell
Harry H. MansbachChief Medical Officer2025-08-017,680$9.16
$70.35kSell
Francis Willard SarenaChief Operating Officer2025-08-013,206$9.16
$29.37kSell
Quoc LenguyenChief Technical Operations Officer2025-07-1510,461$11.02
$115.28kSell
Harry H. MansbachChief Medical Officer2025-06-128,498$9.62
$81.75kSell
Quoc LenguyenChief Technical Operations Officer2025-06-12534$9.62
$5.14kSell

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Net Insider Buy/Sell (L12M) Ownership

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ETNB Shareholders

What type of owners hold 89bio Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Janus Henderson Group PLC14.24%20,788,363$167.76MInstitution
Ra Capital Management LP13.62%19,889,683$160.51MInstitution
Suvretta Capital Management LLC9.73%14,210,000$114.67MInstitution
Blackrock Inc7.24%10,569,424$85.30MInstitution
Deep Track Capital LP6.51%9,500,000$76.67MInstitution
Vanguard Group Inc5.65%8,242,154$66.51MInstitution
Avoro Capital Advisors LLC4.62%6,750,000$54.47MInstitution
Ra Capital Management LP3.63%5,301,133$42.78MInsider
State Street Corp2.91%4,249,957$34.30MInstitution
Pictet Asset Management Holding Sa2.76%4,035,390$32.57MInstitution

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ETNB vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
ETNB90.91%9.09%Net BuyingNet Selling
GPCR31.63%12.59%Net SellingNet Selling
XERS56.08%15.19%Net SellingNet Selling
DNTH53.74%46.26%Net BuyingNet Buying
NTLA71.81%28.19%Net BuyingNet Buying
View Top Biotech Stocks

89bio Stock Ownership FAQ

Who owns 89bio?

89bio (NASDAQ: ETNB) is owned by 110.42% institutional shareholders, 11.04% 89bio insiders, and 0.00% retail investors. Ra Capital Management LP is the largest individual 89bio shareholder, owning 5.30M shares representing 3.63% of the company. Ra Capital Management LP's 89bio shares are currently valued at $42.52M.

If you're new to stock investing, here's how to buy 89bio stock.
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