WallStreetZenWallStreetZen

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
Quoc LenguyenChief Technical Operations Officer2025-07-1510,461$11.02
$115.28kSell
Ryan MartinsChief Financial Officer2025-06-128,498$9.62
$81.75kSell
Harry H. MansbachChief Medical Officer2025-06-128,498$9.62
$81.75kSell
Quoc LenguyenChief Technical Operations Officer2025-06-12534$9.62
$5.14kSell
Quoc LenguyenChief Technical Operations Officer2025-06-128,498$9.62
$81.75kSell
Quoc LenguyenChief Technical Operations Officer2025-04-1515,329$5.95
$91.21kSell
Ryan MartinsChief Financial Officer2025-02-17780$10.57
$8.24kSell
Rohan PalekarChief Executive Officer2025-02-173,249$10.57
$34.34kSell
Quoc LenguyenChief Technical Operations Officer2025-02-171,050$10.57
$11.10kSell
Harry H. MansbachChief Medical Officer2025-02-171,050$10.57
$11.10kSell

1 of 4

ETNB insiders have bought more... subscribe to Premium to read more.
Net Insider Buy/Sell (L12M) Ownership

Be the first to know when ETNB insiders and whales buy or sell their stock.

ETNB Shareholders

What type of owners hold 89bio Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Janus Henderson Group PLC14.02%20,462,905$217.93MInstitution
Ra Capital Management LP13.62%19,889,683$211.83MInstitution
Suvretta Capital Management LLC9.82%14,335,244$152.67MInstitution
Blackrock Inc6.90%10,075,344$107.30MInstitution
Deep Track Capital LP6.38%9,316,333$99.22MInstitution
Vanguard Group Inc4.91%7,163,609$76.29MInstitution
Avoro Capital Advisors LLC4.35%6,350,000$67.63MInstitution
Ra Capital Management LP3.63%5,301,133$56.46MInsider
Citadel Advisors LLC3.48%5,086,836$54.17MInstitution
Pictet Asset Management Holding Sa2.88%4,204,887$44.78MInstitution

1 of 3

ETNB vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
ETNB90.50%9.50%Net BuyingNet Selling
JANX63.76%36.24%Net SellingNet Buying
CLDX85.27%14.73%Net Buying
ADPT63.22%36.78%Net SellingNet Selling
VERA66.22%33.78%Net BuyingNet Buying
View Top Biotech Stocks

89bio Stock Ownership FAQ

Who owns 89bio?

89bio (NASDAQ: ETNB) is owned by 105.67% institutional shareholders, 11.10% 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 $55.61M.

If you're new to stock investing, here's how to buy 89bio stock.
©2025 WallStreetZen
Company
AboutNewsBlogStock Investing FAQPlansPrivacy PolicyTerms of ServiceCancellation & RefundsPerformanceHelp GuidesContactTwitterYouTubeNewsletter
Stock Tools
Top Performing AnalystsStock ScreenerStock ForecastTrending StocksStrong Buy StocksHighest Earnings StocksBest Dividend Paying StocksStatisticsStock Market SectorsStock Market IndustriesHow to Buy Stocks Online
Stock Ideas
Buy The DipBiggest Stock Gainers TodayBiggest Stock Losers Today52 Week High Stocks52 Week Low StocksMost Active Stocks TodayMost Undervalued StocksBest Penny Stocks to Buy NowBest Stocks Under $5Best Stocks Under $10
WallStreetZen does not provide financial advice and does not issue recommendations or offers to buy stock or sell any security.

Information is provided 'as-is' and solely for informational purposes and is not advice. WallStreetZen does not bear any responsibility for any losses or damage that may occur as a result of reliance on this data.