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ETNB Insider Trading

Insider Ownership Percentage: 2.60%
Insider Buying (Last 12 Months): $50,152,193.75
Insider Selling (Last 12 Months): $277,637.64

89BIO Insider Trading History Chart

This chart shows the insider buying and selling history at 89BIO by year and by quarter.

Skip ChartChart Data in Insider Trading History Table

89BIO Share Price & Price History

Current Price: $14.84
Price Change: +0.30 (1.20%)
As of 10/30/2025 04:30 PM ET

This chart shows the closing price history over time for ETNB up to the past year.

Skip Chart and Table DataPrice Data in Insider Trading History Table
Days: 30 | 90 | 365

89BIO Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
7/15/2025Quoc Le-NguyenInsiderSell10,461$11.02$115,280.22309,364View SEC Filing Icon  
4/15/2025Quoc Le-NguyenInsiderSell15,329$5.95$91,207.55328,323View SEC Filing Icon  
1/30/2025Ra Capital Management, L.P.DirectorBuy5,714,285$8.75$49,999,993.7519,554,319View SEC Filing Icon  
1/21/2025Charles McwherterDirectorBuy5,000$6.55$32,750.0015,000View SEC Filing Icon  
1/15/2025Quoc Le-NguyenInsiderSell10,963$6.49$71,149.87271,833View SEC Filing Icon  
12/6/2024Rohan PalekarCEOBuy5,000$7.89$39,450.00471,236View SEC Filing Icon  
12/5/2024Charles McwherterDirectorBuy10,000$8.00$80,000.0010,000View SEC Filing Icon  
11/22/2024Rohan PalekarCEOBuy10,000$8.35$83,500.00466,236View SEC Filing Icon  
3/4/2024Ra Capital Management, L.P.DirectorBuy1,350,000$15.35$20,722,500.0012,431,584View SEC Filing Icon  
2/26/2024Rohan PalekarCEOSell4,477$10.76$48,172.52486,889View SEC Filing Icon  
7/17/2023Kathleen LaporteDirectorSell12,500$18.80$235,000.00View SEC Filing Icon  
6/5/2023Rohan PalekarCEOSell15,000$20.00$300,000.00286,978View SEC Filing Icon  
6/1/2023Morrow Atkinson IIIDirectorSell6,250$17.91$111,937.50View SEC Filing Icon  
5/9/2023Quoc Le-NguyenInsiderSell13,683$18.11$247,799.13164,971View SEC Filing Icon  
4/4/2023Ryan MartinsCFOSell8,721$14.95$130,378.9553,578View SEC Filing Icon  
3/30/2023Michael R HaydenDirectorBuy6,250$3.62$22,625.0083,978View SEC Filing Icon  
3/28/2023Michael R HaydenDirectorBuy61,538$16.15$993,838.7061,538View SEC Filing Icon  
3/24/2023Ra Capital Management, L.P.DirectorBuy2,461,538$16.25$39,999,992.5011,081,584View SEC Filing Icon  
3/23/2023Rohan PalekarCEOSell15,000$16.00$240,000.00269,080View SEC Filing Icon  
3/23/2023Ryan MartinsCFOSell5,000$16.11$80,550.0053,578View SEC Filing Icon  
2/21/2023Ryan MartinsCFOSell2,540$13.89$35,280.6058,578View SEC Filing Icon  
2/8/2023Ryan MartinsCFOSell1,480$14.41$21,326.8032,868View SEC Filing Icon  
2/3/2023Ryan MartinsCFOSell3,592$13.04$46,839.6835,368View SEC Filing Icon  
1/3/2023Ryan MartinsCFOSell5,947$12.51$74,396.9736,368View SEC Filing Icon  
See Full Table

SEC Filings (Institutional Ownership Changes) for 89BIO (NASDAQ:ETNB)

Institutional Buying and Selling by Quarter

This chart shows the instiutional buying and selling at ETNB by year and by quarter.

Skip Institutional Buying and Selling Chart and Table DataRead Chart Data in Institutional Trading History Table

89BIO Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
12/1/2025Cantor Fitzgerald L. P.267,606$3.93M0.0%N/A0.180%Search for SEC Filing on Google Icon
11/21/2025CIBC Bancorp USA Inc.13,304$0.20M0.0%N/A0.009%Search for SEC Filing on Google Icon
11/19/2025Caitong International Asset Management Co. Ltd6,509$96K0.1%+9,913.8%0.004%Search for SEC Filing on Google Icon
11/17/2025Woodline Partners LP172,779$2.54M0.0%-85.9%0.116%Search for SEC Filing on Google Icon
11/17/2025PharVision Advisers LLC15,124$0.22M0.1%N/A0.010%Search for SEC Filing on Google Icon
11/17/2025Dark Forest Capital Management LP118,872$1.75M0.1%-55.4%0.080%Search for SEC Filing on Google Icon
11/17/2025Susquehanna Fundamental Investments LLC212,522$3.12M0.1%-16.9%0.143%Search for SEC Filing on Google Icon
11/17/2025Quarry LP2,515$37K0.0%N/A0.002%Search for SEC Filing on Google Icon
11/17/2025Qube Research & Technologies Ltd90,909$1.34M0.0%N/A0.061%Search for SEC Filing on Google Icon
11/17/2025Prelude Capital Management LLC92,955$1.37M0.1%+32.1%0.063%Search for SEC Filing on Google Icon
11/17/2025PenderFund Capital Management Ltd.9,400$0.14M0.0%N/A0.006%Search for SEC Filing on Google Icon
11/17/2025Pentwater Capital Management LP11,750,000$172.73M1.0%N/A7.923%Search for SEC Filing on Google Icon
11/17/2025Newtyn Management LLC800,000$11.76M1.4%+300.0%0.539%Search for SEC Filing on Google Icon
11/17/2025Millennium Management LLC725,823$10.67M0.0%-22.2%0.489%Search for SEC Filing on Google Icon
11/17/2025MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.67,389$0.99M0.0%-9.4%0.045%Search for SEC Filing on Google Icon
11/17/2025Brevan Howard Capital Management LP11,163$0.16M0.0%-75.7%0.008%Search for SEC Filing on Google Icon
11/17/2025Cantor Fitzgerald L. P.267,606$3.93M0.0%N/A0.180%Search for SEC Filing on Google Icon
11/17/2025Bank of America Corp DE820,620$12.06M0.0%-34.3%0.553%Search for SEC Filing on Google Icon
11/17/2025Alliancebernstein L.P.114,029$1.68M0.0%+1.4%0.077%Search for SEC Filing on Google Icon
11/17/2025Ameriprise Financial Inc.255,623$3.76M0.0%+84.7%0.172%Search for SEC Filing on Google Icon
11/14/2025Schonfeld Strategic Advisors LLC272,094$4M0.0%-29.0%0.183%Search for SEC Filing on Google Icon
11/14/2025AQR Arbitrage LLC296,445$4.36M0.1%N/A0.200%Search for SEC Filing on Google Icon
11/14/2025Raymond James Financial Inc.417,756$6.14M0.0%-26.9%0.282%Search for SEC Filing on Google Icon
11/14/2025Virtu Financial LLC56,968$0.84M0.0%N/A0.038%Search for SEC Filing on Google Icon
11/14/2025Deep Track Capital LP9,356,171$137.54M3.8%-1.5%6.309%Search for SEC Filing on Google Icon
11/14/2025ADAR1 Capital Management LLC2,113,153$31.06M2.9%+141.2%1.425%Search for SEC Filing on Google Icon
11/14/2025Zurcher Kantonalbank Zurich Cantonalbank 41,419$0.61M0.0%+18.7%0.028%Search for SEC Filing on Google Icon
11/14/2025Dauntless Investment Group LLC20,000$0.29M0.2%N/A0.013%Search for SEC Filing on Google Icon
11/14/2025UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC241,011$3.54M0.0%-38.4%0.163%Search for SEC Filing on Google Icon
11/14/2025Suvretta Capital Management LLC8,280,000$121.72M3.1%-41.7%5.583%Search for SEC Filing on Google Icon
11/14/2025Avoro Capital Advisors LLC6,387,790$93.90M1.2%-5.4%4.307%Search for SEC Filing on Google Icon
11/14/2025Quinn Opportunity Partners LLC150,000$2.21M0.2%N/A0.101%Search for SEC Filing on Google Icon
11/13/2025BNP Paribas Financial Markets25,132$0.37M0.0%+35.5%0.017%Search for SEC Filing on Google Icon
11/13/2025Legal & General Group Plc82,828$1.22M0.0%-21.2%0.056%Search for SEC Filing on Google Icon
11/13/2025Swiss National Bank212,200$3.12M0.0%+8.7%0.143%Search for SEC Filing on Google Icon
11/13/2025Russell Investments Group Ltd.10,338$0.15M0.0%N/A0.007%Search for SEC Filing on Google Icon
11/13/2025Yakira Capital Management Inc.251,991$3.70M1.3%N/A0.170%Search for SEC Filing on Google Icon
11/13/2025Private Advisor Group LLC58,500$0.86M0.0%N/A0.039%Search for SEC Filing on Google Icon
11/13/2025Dynamic Technology Lab Private Ltd12,564$0.19M0.0%-54.1%0.008%Search for SEC Filing on Google Icon
11/12/2025Gabelli Funds LLC434,025$6.38M0.0%N/A0.293%Search for SEC Filing on Google Icon
11/12/2025Gamco Investors INC. ET AL10,000$0.15M0.0%N/A0.007%Search for SEC Filing on Google Icon
11/12/2025GABELLI & Co INVESTMENT ADVISERS INC.417,850$6.14M1.0%N/A0.282%Search for SEC Filing on Google Icon
11/12/2025Orchard Capital Management LLC204,114$3M2.6%+3.0%0.138%Search for SEC Filing on Google Icon
11/12/2025Barclays PLC527,069$7.75M0.0%+7.8%0.355%Search for SEC Filing on Google Icon
11/12/2025Dimensional Fund Advisors LP1,606,783$23.62M0.0%+35.8%1.083%Search for SEC Filing on Google Icon
11/12/2025Victory Capital Management Inc.16,801$0.25M0.0%-61.0%0.011%Search for SEC Filing on Google Icon
11/12/2025Rafferty Asset Management LLC189,837$2.79M0.0%+55.2%0.128%Search for SEC Filing on Google Icon
11/12/2025Erste Asset Management GmbH833,000$12.25M0.1%-5.7%0.562%Search for SEC Filing on Google Icon
11/12/2025Westfield Capital Management Co. LP3,291,369$48.38M0.2%-2.4%2.219%Search for SEC Filing on Google Icon
11/12/2025Intech Investment Management LLC28,764$0.42M0.0%-53.8%0.019%Search for SEC Filing on Google Icon
11/10/2025Ameritas Investment Partners Inc.10,427$0.15M0.0%-18.2%0.007%Search for SEC Filing on Google Icon
11/10/2025Citigroup Inc.144,436$2.12M0.0%-33.2%0.097%Search for SEC Filing on Google Icon
11/10/2025China Universal Asset Management Co. Ltd.25,996$0.38M0.0%-11.3%0.018%Search for SEC Filing on Google Icon
11/7/2025Skandinaviska Enskilda Banken AB publ 20,000$0.29M0.0%N/A0.013%Search for SEC Filing on Google Icon
11/7/2025Vanguard Group Inc.8,053,459$118.39M0.0%-2.3%5.430%Search for SEC Filing on Google Icon
11/7/2025Credit Industriel ET Commercial600,000$8.82M0.7%N/A0.405%Search for SEC Filing on Google Icon
11/7/2025JPMorgan Chase & Co.71,178$1.05M0.0%-10.6%0.048%Search for SEC Filing on Google Icon
11/7/2025PNC Financial Services Group Inc.19,109$0.28M0.0%-8.5%0.013%Search for SEC Filing on Google Icon
11/6/2025Alpine Associates Management Inc.529,800$7.79M0.5%N/A0.357%Search for SEC Filing on Google Icon
11/6/2025Rhumbline Advisers189,817$2.79M0.0%-2.1%0.128%Search for SEC Filing on Google Icon
11/6/2025Profund Advisors LLC41,449$0.61M0.0%+55.8%0.028%Search for SEC Filing on Google Icon
11/6/2025ProShare Advisors LLC45,614$0.67M0.0%+46.9%0.031%Search for SEC Filing on Google Icon
11/5/2025Optimize Financial Inc47,871$0.70M0.4%+139.5%0.032%Search for SEC Filing on Google Icon
11/4/2025Allianz Asset Management GmbH43,000$0.63M0.0%-29.5%0.029%Search for SEC Filing on Google Icon
11/3/2025Arizona State Retirement System32,398$0.48M0.0%+8.7%0.022%Search for SEC Filing on Google Icon
10/31/2025Y Intercept Hong Kong Ltd35,654$0.52M0.0%+99.5%0.024%Search for SEC Filing on Google Icon
10/30/2025Emerald Mutual Fund Advisers Trust512,051$7.53M0.4%-55.3%0.345%Search for SEC Filing on Google Icon
10/30/2025Covestor Ltd21,347$0.31M0.2%+193,963.6%0.014%Search for SEC Filing on Google Icon
10/28/2025Syquant Capital Sas2,593,694$38.13M10.9%N/A1.749%Search for SEC Filing on Google Icon
10/28/2025Gilliland Jeter Wealth Management LLC60,499$0.89M0.3%+14.7%0.041%Search for SEC Filing on Google Icon
10/23/2025SG Americas Securities LLC49,731$0.73M0.0%N/A0.034%Search for SEC Filing on Google Icon
10/23/2025KLP Kapitalforvaltning AS26,100$0.38M0.0%+31.2%0.018%Search for SEC Filing on Google Icon
10/22/2025Hennion & Walsh Asset Management Inc.248,497$3.65M0.1%+17.2%0.168%Search for SEC Filing on Google Icon
10/15/2025Inspire Investing LLC30,759$0.45M0.0%-21.8%0.021%Search for SEC Filing on Google Icon
10/15/2025Harbor Capital Advisors Inc.57,706$0.85M0.1%-73.5%0.039%Search for SEC Filing on Google Icon
10/9/2025Voya Investment Management LLC242,557$3.57M0.0%-4.6%0.164%Search for SEC Filing on Google Icon
10/7/2025Assenagon Asset Management S.A.242,716$3.57M0.0%-88.8%0.164%Search for SEC Filing on Google Icon
10/7/2025Sanders Morris Harris LLC163,914$2.41M0.3%N/A0.111%Search for SEC Filing on Google Icon
9/4/2025Osaic Holdings Inc.6,463$63K0.0%+25.9%0.004%Search for SEC Filing on Google Icon
8/18/2025Hudson Bay Capital Management LP225,700$2.22M0.0%-9.8%0.152%Search for SEC Filing on Google Icon
8/15/2025Tower Research Capital LLC TRC 14,066$0.14M0.0%+338.6%0.009%Search for SEC Filing on Google Icon
8/15/2025Exome Asset Management LLC233,426$2.29M1.2%-34.0%0.157%Search for SEC Filing on Google Icon
8/15/2025Rafferty Asset Management LLC122,353$1.20M0.0%-10.9%0.082%Search for SEC Filing on Google Icon
8/15/2025Holocene Advisors LP3,065,387$30.10M0.1%N/A2.067%Search for SEC Filing on Google Icon
8/15/2025Hudson Bay Capital Management LP225,700$2.22M0.0%-9.8%0.152%Search for SEC Filing on Google Icon
8/15/2025BNP Paribas Financial Markets18,542$0.18M0.0%-73.2%0.013%Search for SEC Filing on Google Icon
8/15/2025Brevan Howard Capital Management LP45,965$0.45M0.0%N/A0.031%Search for SEC Filing on Google Icon
8/15/2025Bank of America Corp DE1,249,954$12.28M0.0%+59.9%0.843%Search for SEC Filing on Google Icon
8/15/2025Adage Capital Partners GP L.L.C.1,969,000$19.34M0.0%N/A1.328%Search for SEC Filing on Google Icon
8/15/2025Ameriprise Financial Inc.138,410$1.36M0.0%N/A0.093%Search for SEC Filing on Google Icon
8/14/2025Sandia Investment Management LP17,500$0.17M0.4%-30.0%0.012%Search for SEC Filing on Google Icon
8/14/2025California State Teachers Retirement System105,654$1.04M0.0%+1.6%0.071%Search for SEC Filing on Google Icon
8/14/2025Raymond James Financial Inc.571,602$5.61M0.0%+49.5%0.385%Search for SEC Filing on Google Icon
8/14/2025Redmile Group LLC1,545,208$15.17M1.6%-18.1%1.042%Search for SEC Filing on Google Icon
8/14/2025MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.74,371$0.73M0.0%+2.1%0.050%Search for SEC Filing on Google Icon
8/14/2025The Manufacturers Life Insurance Company 67,547$0.66M0.0%+21.9%0.046%Search for SEC Filing on Google Icon
8/14/2025Sei Investments Co.20,624$0.20M0.0%N/A0.014%Search for SEC Filing on Google Icon
8/14/2025HighVista Strategies LLC47,633$0.47M0.2%N/A0.032%Search for SEC Filing on Google Icon
8/14/2025Diadema Partners LP98,382$0.97M0.3%-57.5%0.066%Search for SEC Filing on Google Icon
8/14/2025Pale Fire Capital SE26,578$0.26M0.0%+7.3%0.018%Search for SEC Filing on Google Icon
Data available starting January 2016

See Full Table
89BIO logo
89bio, Inc., a clinical-stage biopharmaceutical company, focuses on the development and commercialization of therapies for the treatment of liver and cardio-metabolic diseases. Its lead product candidate is pegozafermin, a glycoPEGylated analog of fibroblast growth factor 21 for the treatment of nonalcoholic steatohepatitis; and for the treatment of severe hypertriglyceridemia. The company was incorporated in 2018 and is headquartered in San Francisco, California.
Read More on 89BIO

Today's Range

Now: $14.84
Low: $14.82
High: $14.87

50 Day Range

MA: $14.82
Low: $14.69
High: $14.87

52 Week Range

Now: $14.84
Low: $4.16
High: $15.06

Volume

55,645,300 shs

Average Volume

5,915,994 shs

Market Capitalization

$2.20 billion

P/E Ratio

N/A

Dividend Yield

N/A

Beta

1.27

Who are the company insiders with the largest holdings of 89BIO?

89BIO's top insider shareholders include:
  1. Ra Capital Management, LP (Director)
  2. Rohan Palekar (CEO)
  3. Quoc Le-Nguyen (Insider)
  4. Charles Mcwherter (Director)
Learn More about top insider investors at 89BIO.

Who are the major institutional investors of 89BIO?

89BIO's top institutional shareholders include:
  1. Pentwater Capital Management LP — 7.92%
  2. Deep Track Capital LP — 6.31%
  3. Suvretta Capital Management LLC — 5.58%
  4. Vanguard Group Inc. — 5.43%
  5. Avoro Capital Advisors LLC — 4.31%
  6. Westfield Capital Management Co. LP — 2.22%
Learn More about top institutional investors of 89BIO stock.

Which institutional investors are selling 89BIO stock?

In the previous quarter, ETNB stock was sold by these institutional investors:
  1. Suvretta Capital Management LLC
  2. Assenagon Asset Management S.A.
  3. Woodline Partners LP
  4. Emerald Mutual Fund Advisers Trust
  5. Caption Management LLC
  6. Bank of America Corp DE
  7. Avoro Capital Advisors LLC
  8. Millennium Management LLC

Which institutional investors are buying 89BIO stock?

In the previous quarter, ETNB stock was acquired by institutional investors including:
  1. Pentwater Capital Management LP
  2. Syquant Capital Sas
  3. ADAR1 Capital Management LLC
  4. Susquehanna International Group LLP
  5. Credit Industriel ET Commercial
  6. Newtyn Management LLC
  7. Alpine Associates Management Inc.
  8. Gabelli Funds LLC
In the previous year, these company insiders have bought 89BIO stock:
  1. Ra Capital Management, LP (Director)
  2. Rohan Palekar (CEO)
  3. Quoc Le-Nguyen (Insider)
Learn More investors buying 89BIO stock.