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INBX Insider Trading

Insider Ownership Percentage: 17.09%
Insider Buying (Last 12 Months): $0.00
Insider Selling (Last 12 Months): $11,287,500.00

Inhibrx Biosciences Insider Trading History Chart

This chart shows the insider buying and selling history at Inhibrx Biosciences by year and by quarter.

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Inhibrx Biosciences Share Price & Price History

Current Price: $87.41
Price Change: ▲ Price Increase of +4.45 (5.36%)
As of 12/4/2025 05:00 PM ET

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

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

Inhibrx Biosciences Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
10/7/2025Global Investors Lp VikingMajor ShareholderSell350,000$32.25$11,287,500.0067,018View SEC Filing Icon  
11/19/2024Jon Faiz KayyemDirectorBuy69,686$14.23$991,631.7851,093View SEC Filing Icon  
9/16/2024Mark LappeCEOBuy13,037$17.13$223,323.81705,548View SEC Filing Icon  
9/12/2024Mark LappeCEOBuy26,963$15.05$405,793.15692,511View SEC Filing Icon  
9/10/2024Kristiina VuoriDirectorBuy179$15.00$2,685.007,319View SEC Filing Icon  
9/9/2024Mark LappeCEOBuy9,500$15.21$144,495.00657,048View SEC Filing Icon  
9/6/2024Mark LappeCEOBuy26,000$15.29$397,540.00647,548View SEC Filing Icon  
9/3/2024Mark LappeCEOBuy20,000$15.81$316,200.00165,000View SEC Filing Icon  
8/29/2024Mark LappeCEOBuy10,000$14.03$140,300.00135,000View SEC Filing Icon  
6/5/2024Jon Faiz KayyemDirectorBuy57,549$17.32$996,748.681,150,410View SEC Filing Icon  
5/28/2024Brendan P. EckelmanInsiderSell300,000$34.30$10,290,000.001,735,553View SEC Filing Icon  
8/28/2023Global Investors Lp VikingMajor ShareholderBuy511,627$19.35$9,899,982.45511,627View SEC Filing Icon  
2/1/2023Brendan P. EckelmanInsiderSell28,750$24.73$710,987.502,086,803View SEC Filing Icon  
1/23/2023Jon Faiz KayyemDirectorSell9,500$25.26$239,970.003,224,301View SEC Filing Icon  
1/23/2023Mark LappeCEOSell21,665$25.36$549,424.402,490,587View SEC Filing Icon  
1/3/2023Brendan P. EckelmanInsiderSell32,895$23.77$781,914.152,122,658View SEC Filing Icon  
12/21/2022Jon Faiz KayyemDirectorSell9,500$27.02$256,690.003,233,801View SEC Filing Icon  
12/19/2022Mark LappeCEOSell26,000$25.56$664,560.002,512,252View SEC Filing Icon  
12/6/2022Brendan P. EckelmanInsiderSell40,000$27.22$1,088,800.002,155,553View SEC Filing Icon  
See Full Table

SEC Filings (Institutional Ownership Changes) for Inhibrx Biosciences (NASDAQ:INBX)

82.46% of Inhibrx Biosciences stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

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

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

Inhibrx Biosciences Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
11/17/2025Jacobs Levy Equity Management Inc.13,719$0.46M0.0%N/A0.095%Search for SEC Filing on Google Icon
11/17/2025Woodline Partners LP336,590$11.34M0.1%-49.2%2.325%Search for SEC Filing on Google Icon
11/17/2025Public Employees Retirement System of Ohio1,200$40K0.0%N/A0.008%Search for SEC Filing on Google Icon
11/17/2025Mariner LLC17,342$0.58M0.0%+45.1%0.120%Search for SEC Filing on Google Icon
11/17/2025Millennium Management LLC297,820$10.03M0.0%+8.0%2.057%Search for SEC Filing on Google Icon
11/17/2025MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.4,130$0.14M0.0%-16.6%0.029%Search for SEC Filing on Google Icon
11/17/2025HighVista Strategies LLC7,626$0.26M0.1%N/A0.053%Search for SEC Filing on Google Icon
11/17/2025Citadel Advisors LLC57,194$1.93M0.0%N/A0.395%Search for SEC Filing on Google Icon
11/17/2025Bank of America Corp DE17,832$0.60M0.0%+95.3%0.123%Search for SEC Filing on Google Icon
11/17/2025Boothbay Fund Management LLC78,812$2.65M0.0%+179.2%0.544%Search for SEC Filing on Google Icon
11/17/2025ArrowMark Colorado Holdings LLC35,176$1.19M0.0%-2.8%0.243%Search for SEC Filing on Google Icon
11/17/2025Alliancebernstein L.P.19,230$0.65M0.0%-5.8%0.133%Search for SEC Filing on Google Icon
11/14/2025Schonfeld Strategic Advisors LLC97,382$3.28M0.0%-37.1%0.673%Search for SEC Filing on Google Icon
11/14/2025SummitTX Capital L.P.54,143$1.82M0.1%N/A0.374%Search for SEC Filing on Google Icon
11/14/2025Caligan Partners LP236,383$7.96M1.0%N/A1.632%Search for SEC Filing on Google Icon
11/14/2025Acuta Capital Partners LLC16,377$0.55M0.6%N/A0.113%Search for SEC Filing on Google Icon
11/14/2025Slotnik Capital LLC41,401$1.39M0.4%-77.5%0.286%Search for SEC Filing on Google Icon
11/13/2025Kennedy Capital Management LLC161,909$5.45M0.1%-8.7%1.118%Search for SEC Filing on Google Icon
11/13/2025Arrowstreet Capital Limited Partnership6,003$0.20M0.0%N/A0.041%Search for SEC Filing on Google Icon
11/13/2025BNP Paribas Financial Markets1,886$64K0.0%+71.9%0.013%Search for SEC Filing on Google Icon
11/13/2025Franklin Resources Inc.17,164$0.58M0.0%-22.6%0.119%Search for SEC Filing on Google Icon
11/13/2025Russell Investments Group Ltd.38,134$1.28M0.0%+27.1%0.263%Search for SEC Filing on Google Icon
11/13/2025Dynamic Technology Lab Private Ltd7,388$0.25M0.0%N/A0.051%Search for SEC Filing on Google Icon
11/10/2025China Universal Asset Management Co. Ltd.2,539$86K0.0%-12.7%0.018%Search for SEC Filing on Google Icon
11/7/2025Readystate Asset Management LP170,158$5.73M0.2%+534.1%1.175%Search for SEC Filing on Google Icon
11/7/2025Vanguard Group Inc.594,918$20.04M0.0%-0.6%4.109%Search for SEC Filing on Google Icon
11/7/2025Credit Industriel ET Commercial28,958$0.98M0.1%-54.9%0.200%Search for SEC Filing on Google Icon
11/7/2025JPMorgan Chase & Co.4,829$0.16M0.0%-9.0%0.033%Search for SEC Filing on Google Icon
11/6/2025Rhumbline Advisers13,735$0.46M0.0%-4.2%0.095%Search for SEC Filing on Google Icon
10/17/2025Ethic Inc.14,487$0.49M0.0%-8.0%0.100%Search for SEC Filing on Google Icon
8/15/2025Sofinnova Investments Inc.708,678$10.11M0.6%+1.5%4.894%Search for SEC Filing on Google Icon
8/15/2025Perceptive Advisors LLC977,892$13.96M1.2%-8.1%6.753%Search for SEC Filing on Google Icon
8/15/2025Bridgeway Capital Management LLC16,500$0.24M0.0%N/A0.114%Search for SEC Filing on Google Icon
8/15/2025Bank of America Corp DE9,130$0.13M0.0%+19.2%0.063%Search for SEC Filing on Google Icon
8/14/2025Jane Street Group LLC19,373$0.28M0.0%-26.3%0.134%Search for SEC Filing on Google Icon
8/14/2025MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.4,954$71K0.0%-28.9%0.034%Search for SEC Filing on Google Icon
8/14/2025Mark Asset Management LP17,000$0.24M0.0%N/A0.117%Search for SEC Filing on Google Icon
8/14/2025Qube Research & Technologies Ltd19,886$0.28M0.0%-58.5%0.137%Search for SEC Filing on Google Icon
8/13/2025Kennedy Capital Management LLC177,318$2.53M0.1%+7.5%1.225%Search for SEC Filing on Google Icon
8/13/2025Invesco Ltd.13,492$0.19M0.0%N/A0.093%Search for SEC Filing on Google Icon
8/13/2025Russell Investments Group Ltd.29,993$0.43M0.0%+11.0%0.207%Search for SEC Filing on Google Icon
8/12/2025Rhumbline Advisers14,334$0.21M0.0%-7.1%0.099%Search for SEC Filing on Google Icon
8/12/2025Franklin Resources Inc.22,170$0.32M0.0%N/A0.153%Search for SEC Filing on Google Icon
8/12/2025JPMorgan Chase & Co.5,308$76K0.0%-17.0%0.037%Search for SEC Filing on Google Icon
8/8/2025Geode Capital Management LLC225,955$3.23M0.0%-13.1%1.560%Search for SEC Filing on Google Icon
7/30/2025Ethic Inc.15,739$0.23M0.0%N/A0.109%Search for SEC Filing on Google Icon
6/27/2025Goldman Sachs Group Inc.17,165$0.24M0.0%-70.1%0.119%Search for SEC Filing on Google Icon
5/28/2025Strs Ohio1,900$27K0.0%N/A0.013%Search for SEC Filing on Google Icon
5/21/2025Acadian Asset Management LLC192,498$2.69M0.0%+34.2%1.330%Search for SEC Filing on Google Icon
5/21/2025Bluefin Capital Management LLC11,408$0.16M0.1%N/A0.079%Search for SEC Filing on Google Icon
5/19/2025Jane Street Group LLC26,300$0.37M0.0%-70.3%0.182%Search for SEC Filing on Google Icon
5/17/2025Slotnik Capital LLC286,962$4.02M1.9%-26.0%1.982%Search for SEC Filing on Google Icon
5/16/2025Woodline Partners LP358,436$5.02M0.0%N/A2.476%Search for SEC Filing on Google Icon
5/16/2025Goldman Sachs Group Inc.17,165$0.24M0.0%-70.1%0.119%Search for SEC Filing on Google Icon
5/15/2025State of Wyoming2,889$40K0.0%-46.5%0.020%Search for SEC Filing on Google Icon
5/14/2025Groupe la Francaise75,932$1.06M0.0%N/A0.525%Search for SEC Filing on Google Icon
5/13/2025Russell Investments Group Ltd.27,030$0.38M0.0%-50.3%0.187%Search for SEC Filing on Google Icon
5/13/2025HighTower Advisors LLC871,754$12.20M0.0%+11.5%6.022%Search for SEC Filing on Google Icon
5/12/2025Nuveen LLC25,021$0.35M0.0%N/A0.173%Search for SEC Filing on Google Icon
5/9/2025Deutsche Bank AG7,443$0.10M0.0%-62.0%0.051%Search for SEC Filing on Google Icon
5/8/2025XTX Topco Ltd16,918$0.24M0.0%N/A0.117%Search for SEC Filing on Google Icon
5/6/2025Tabor Asset Management LP36,195$0.51M0.1%N/A0.250%Search for SEC Filing on Google Icon
5/5/2025Tabor Asset Management LP36,195$0.51M0.2%N/A0.250%Search for SEC Filing on Google Icon
4/29/2025Bank of New York Mellon Corp52,800$0.74M0.0%+2.6%0.365%Search for SEC Filing on Google Icon
4/10/2025Alpha Wealth Funds LLC38,647$0.54M0.5%-50.4%0.267%Search for SEC Filing on Google Icon
4/7/2025GAMMA Investing LLC6,855$0.96M0.0%+9,834.8%0.047%Search for SEC Filing on Google Icon
3/7/2025Alpha Wealth Funds LLC77,933$1.18M1.1%N/A0.538%Search for SEC Filing on Google Icon
2/17/2025State of Wyoming5,402$83K0.0%N/A0.037%Search for SEC Filing on Google Icon
2/17/2025Sanofi1,157,926$17.83M10.2%N/A7.997%Search for SEC Filing on Google Icon
2/17/2025Nuveen Asset Management LLC25,021$0.39M0.0%N/A0.173%Search for SEC Filing on Google Icon
2/17/2025Millennium Management LLC258,388$3.98M0.0%N/A1.784%Search for SEC Filing on Google Icon
2/17/2025MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.6,653$0.10M0.0%N/A0.046%Search for SEC Filing on Google Icon
2/17/2025Laird Norton Wetherby Wealth Management LLC30,656$0.47M0.0%N/A0.212%Search for SEC Filing on Google Icon
2/17/2025Deutsche Bank AG19,609$0.30M0.0%N/A0.135%Search for SEC Filing on Google Icon
2/17/2025Caption Management LLC199,898$3.08M0.0%N/A1.381%Search for SEC Filing on Google Icon
2/17/2025Bank of America Corp DE12,430$0.19M0.0%N/A0.086%Search for SEC Filing on Google Icon
2/17/2025BNP Paribas Financial Markets8,326$0.13M0.0%N/A0.058%Search for SEC Filing on Google Icon
2/17/2025ArrowMark Colorado Holdings LLC160,899$2.48M0.0%N/A1.111%Search for SEC Filing on Google Icon
2/14/2025Jane Street Group LLC88,419$1.36M0.0%N/A0.611%Search for SEC Filing on Google Icon
2/14/2025Castalian Partners LLC191,533$2.95M1.5%N/A1.323%Search for SEC Filing on Google Icon
2/14/2025Schonfeld Strategic Advisors LLC144,178$2.22M0.0%N/A0.996%Search for SEC Filing on Google Icon
2/14/2025Northern Trust Corp116,104$1.79M0.0%N/A0.802%Search for SEC Filing on Google Icon
2/14/2025Birchview Capital LP32,110$0.49M0.4%N/A0.222%Search for SEC Filing on Google Icon
2/14/2025Boothbay Fund Management LLC28,230$0.44M0.0%N/A0.195%Search for SEC Filing on Google Icon
2/14/2025Credit Industriel ET Commercial64,217$0.99M0.1%N/A0.443%Search for SEC Filing on Google Icon
2/14/2025Cigogne Management SA75,932$1.17M0.7%N/A0.524%Search for SEC Filing on Google Icon
2/14/2025JBF Capital Inc.20,949$0.32M0.1%N/A0.145%Search for SEC Filing on Google Icon
2/14/2025MetLife Investment Management LLC7,683$0.12M0.0%N/A0.053%Search for SEC Filing on Google Icon
2/14/2025Natixis2,000$31K0.0%N/A0.014%Search for SEC Filing on Google Icon
2/13/2025Marshall Wace LLP53,586$0.83M0.0%N/A0.370%Search for SEC Filing on Google Icon
2/13/2025Walleye Capital LLC579,999$8.93M0.0%N/A4.006%Search for SEC Filing on Google Icon
2/13/2025Barclays PLC18,841$0.29M0.0%N/A0.130%Search for SEC Filing on Google Icon
2/13/2025Kennedy Capital Management LLC165,681$2.55M0.1%N/A1.144%Search for SEC Filing on Google Icon
2/13/2025Arbiter Partners Capital Management LLC28,095$0.43M0.3%N/A0.194%Search for SEC Filing on Google Icon
2/13/2025Yakira Capital Management Inc.36,195$0.56M0.2%N/A0.250%Search for SEC Filing on Google Icon
2/13/2025Russell Investments Group Ltd.54,345$0.84M0.0%N/A0.375%Search for SEC Filing on Google Icon
2/13/2025Wells Fargo & Company MN6,647$0.10M0.0%N/A0.046%Search for SEC Filing on Google Icon
2/12/2025Rangeley Capital LLC49,401$0.76M0.7%N/A0.341%Search for SEC Filing on Google Icon
2/12/2025Slotnik Capital LLC388,000$5.98M2.7%N/A2.680%Search for SEC Filing on Google Icon
2/12/2025Geode Capital Management LLC255,133$3.93M0.0%N/A1.762%Search for SEC Filing on Google Icon
Data available starting January 2016

See Full Table
Inhibrx Biosciences logo
Inhibrx, Inc., a clinical-stage biopharmaceutical company, develops a pipeline of novel biologic therapeutic candidates. The company's therapeutic candidate includes INBRX-101, an alpha-1 antitrypsin (AAT)-Fc fusion protein therapeutic candidate, which is in Phase 1 clinical trials for use in the treatment of patients with AAT deficiency. It also develops INBRX-109, a tetravalent therapeutic candidate targeting death receptor 5, which is in Phase 2 clinical trials to treat cancers, such as chondrosarcoma, mesothelioma, colorectal cancer, ewing sarcoma, and pancreatic adenocarcinoma; and INBRX-106, a hexavalent agonist of OX40 for a range of oncology indications. The company has license and collaboration agreements with 2seventy bio, Inc. and Bristol-Myers Squibb Company. Inhibrx, Inc. was incorporated in 2009 and is headquartered in La Jolla, California.
Read More on Inhibrx Biosciences

Today's Range

Now: $87.41
Low: $81.49
High: $89.43

50 Day Range

MA: $61.01
Low: $28.36
High: $87.41

52 Week Range

Now: $87.41
Low: $10.81
High: $89.43

Volume

275,711 shs

Average Volume

261,355 shs

Market Capitalization

$1.27 billion

P/E Ratio

N/A

Dividend Yield

N/A

Beta

1.18

Who are the company insiders with the largest holdings of Inhibrx Biosciences?

Inhibrx Biosciences' top insider shareholders include:
  1. Brendan P Eckelman (Insider)
  2. Jon Faiz Kayyem (Director)
  3. Mark Lappe (CEO)
  4. Global Investors Lp Viking (Major Shareholder)
  5. Kristiina Md Vuori (Director)
Learn More about top insider investors at Inhibrx Biosciences.

Who are the major institutional investors of Inhibrx Biosciences?

Inhibrx Biosciences' top institutional shareholders include:
  1. Vanguard Group Inc. — 4.11%
  2. Woodline Partners LP — 2.32%
  3. Millennium Management LLC — 2.06%
  4. Caligan Partners LP — 1.63%
  5. Readystate Asset Management LP — 1.18%
  6. Kennedy Capital Management LLC — 1.12%
Learn More about top institutional investors of Inhibrx Biosciences stock.

Which major investors are selling Inhibrx Biosciences stock?

Within the last quarter, INBX stock was sold by these institutional investors:
  1. Woodline Partners LP
  2. Slotnik Capital LLC
  3. Schonfeld Strategic Advisors LLC
  4. Credit Industriel ET Commercial
  5. Kennedy Capital Management LLC
  6. Franklin Resources Inc.
  7. Vanguard Group Inc.
  8. Ethic Inc.

Which major investors are buying Inhibrx Biosciences stock?

During the last quarter, INBX stock was acquired by institutional investors including:
  1. Caligan Partners LP
  2. Readystate Asset Management LP
  3. Caption Management LLC
  4. Citadel Advisors LLC
  5. SummitTX Capital L.P.
  6. Boothbay Fund Management LLC
  7. Millennium Management LLC
  8. Acuta Capital Partners LLC
During the previous year, these company insiders have bought Inhibrx Biosciences stock:
  1. Brendan P Eckelman (Insider)
  2. Jon Faiz Kayyem (Director)
  3. Mark Lappe (CEO)
Learn More investors buying Inhibrx Biosciences stock.