Skip to main content

Inhibrx Biosciences, Inc.

INBX
Exchange
Nasdaq
Industry
Biological Products, (No Diagnostic Substances)
SEC CIK
0002007919

In the last 90 days, Inhibrx Biosciences, Inc. insiders filed 6 open-market purchases and 2 sales; 162 institutions reported holding it in 13F filings for Q2 2026, worth $1.36B in total; Viking Global Investors is the only superinvestor holding it.

13F holders, Q3 2023

Institutional positions in Inhibrx Biosciences, Inc. as of Sep 30, 2023. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
111
+4 vs. Q2 2023
Shares held
39.0M
+3.00M (+8.3%) vs. Q2 2023
Total value
$716.1M
−$219.0M (−23.4%) vs. Q2 2023
New holders
13
42 more added
Sold out
9
36 more reduced

Compare with Q2 2023: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting INBX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ3 2023: 111 institutions
Q1 2021: 55 institutionsQ2 2021: 61 institutionsQ3 2021: 66 institutionsQ4 2021: 101 institutionsQ1 2022: 99 institutionsQ2 2022: 100 institutionsQ3 2022: 102 institutionsQ4 2022: 116 institutionsQ1 2023: 108 institutionsQ2 2023: 107 institutionsQ3 2023: 111 institutionsQ4 2023: 126 institutionsQ1 2024: 126 institutionsQ2 2024: 88 institutionsQ3 2024: 96 institutionsQ4 2024: 101 institutionsQ1 2025: 92 institutionsQ2 2025: 89 institutionsQ3 2025: 102 institutionsQ4 2025: 138 institutionsQ1 2026: 135 institutionsQ2 2026: 162 institutions
Value heldQ3 2023: $716.1M
Q1 2021: $326.3MQ2 2021: $538.8MQ3 2021: $681.6MQ4 2021: $1.01BQ1 2022: $548.0MQ2 2022: $297.3MQ3 2022: $512.2MQ4 2022: $886.0MQ1 2023: $691.6MQ2 2023: $935.2MQ3 2023: $716.1MQ4 2023: $1.54BQ1 2024: $1.34BQ2 2024: $137.9MQ3 2024: $139.3MQ4 2024: $171.9MQ1 2025: $151.0MQ2 2025: $148.9MQ3 2025: $353.6MQ4 2025: $1.01BQ1 2026: $854.6MQ2 2026: $1.36B
Institutions holding INBX and their total value by quarter
QuarterHoldersValue
Q2 2026162$1.36B
Q1 2026135$854.6M
Q4 2025138$1.01B
Q3 2025102$353.6M
Q2 202589$148.9M
Q1 202592$151.0M
Q4 2024101$171.9M
Q3 202496$139.3M
Q2 202488$137.9M
Q1 2024126$1.34B
Q4 2023126$1.54B
Q3 2023111$716.1M
Q2 2023107$935.2M
Q1 2023108$691.6M
Q4 2022116$886.0M
Q3 2022102$512.2M
Q2 2022100$297.3M
Q1 202299$548.0M
Q4 2021101$1.01B
Q3 202166$681.6M
Q2 202161$538.8M
Q1 202155$326.3M

Institutions, Q3 2023

Shares, value and share of portfolio for each institution holding Inhibrx Biosciences, Inc.; share changes are against Q2 2023.

Institutions holding INBX in Q3 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Covestor Ltd3$00.00%−1−25.0%Reduced
Sofos Investments, Inc.1$130.00%−25−96.2%Reduced
Signaturefd, LLC16$2940.00%−115−87.8%Reduced
Allworth Financial LP88$1.61K0.00%00.0%Unchanged
Lindbrook Capital, LLC103$1.89K0.00%+103New
Daiwa Securities Group Inc.175$3.00K0.00%00.0%Unchanged
US Bancorp193$3.54K0.00%+128+196.9%Added
Simplex Trading, LLC636$11.0K0.00%+636New
China Universal Asset Management Co., Ltd.1,117$20.5K0.01%+545+95.3%Added
Great West Life Assurance Co1,199$22.0K0.00%00.0%Unchanged
Nisa Investment Advisors, LLC1,343$24.6K0.00%−997−42.6%Reduced
Group One Trading, L.P.1,600$29.4K0.00%+1,003+168.0%Added
Metropolitan Life Insurance Co1,950$35.8K0.00%+140+7.7%Added
Zurcher Kantonalbank (Zurich Cantonalbank)3,058$56.1K0.00%−10.0%Reduced
Ameritas Investment Partners, Inc.3,412$62.6K0.00%+805+30.9%Added
Virtus ETF Advisers LLC3,678$67.5K0.04%−366−9.1%Reduced
Amalgamated Bank4,600$84.0K0.00%00.0%Unchanged
Exchange Traded Concepts, LLC5,005$91.8K0.00%−160−3.1%Reduced
Royal Bank of Canada5,181$95.0K0.00%+1,821+54.2%Added
Tower Research Capital LLC (TRC)5,906$108.4K0.00%+3,471+142.5%Added
Erste Asset Management GmbH8,700$158.4K0.00%00.0%Unchanged
Voloridge Investment Management, LLC10,710$196.5K0.00%+10,710New
Principal Financial Group Inc10,771$197.6K0.00%+428+4.1%Added
ExodusPoint Capital Management, LP10,958$201.0K0.00%+10,958New
Janus Henderson Group PLC11,375$208.7K0.00%+15+0.1%Added
Creative Planning12,180$223.5K0.00%+180+1.5%Added
Fox Run Management, L.L.C.12,621$231.6K0.07%+12,621New
Price T Rowe Associates Inc12,714$234.0K0.00%+703+5.9%Added
Balyasny Asset Management LLC12,861$236.0K0.00%+12,861New
Prelude Capital Management, LLC13,221$242.6K0.02%+13,221New
Manufacturers Life Insurance Company, The13,668$250.8K0.00%+15+0.1%Added
Voya Investment Management LLC13,865$254.4K0.00%+227+1.7%Added
New York State Common Retirement Fund13,959$256.1K0.00%+115+0.8%Added
LMR Partners LLP14,458$265.3K0.01%00.0%Unchanged
RS Crum Inc.14,659$269.0K0.10%00.0%Unchanged
Advisor Group Holdings, Inc.15,260$280.0K0.00%+7,180+88.9%Added
Deutsche Bank AG16,224$297.7K0.00%+2,156+15.3%Added
XTX Topco Ltd16,368$300.4K0.05%+16,368New
American International Group, Inc.17,140$314.5K0.00%+610+3.7%Added
MetLife Investment Management18,194$333.9K0.00%00.0%Unchanged
Invesco Ltd.19,010$348.8K0.00%−40,124−67.9%Reduced
Mirae Asset Global Investments Co., Ltd.19,163$351.6K0.00%−755−3.8%Reduced
Alaethes Wealth LLC19,341$354.9K0.19%00.0%Unchanged
Profund Advisors LLC19,746$362.3K0.02%−4,409−18.3%Reduced
Tudor Investment Corp Et Al21,710$398.4K0.01%+21,710New
Legal & General Group Plc22,161$406.7K0.00%−262−1.2%Reduced
Credit Suisse AG22,909$420.4K0.00%−6,494−22.1%Reduced
Velan Capital Investment Management LP25,000$458.8K0.37%00.0%Unchanged
DekaBank Deutsche Girozentrale26,400$472.0K0.00%00.0%Unchanged
Hennion & Walsh Asset Management, Inc.27,731$508.9K0.03%+13,098+89.5%Added
M&T Bank Corp28,506$523.5K0.00%+102+0.4%Added
Susquehanna International Group, LLP28,953$531.3K0.00%+3,304+12.9%Added
California State Teachers Retirement System30,704$563.4K0.00%−3,733−10.8%Reduced
HRT Financial LP31,084$570.0K0.01%+31,084New
UBS Asset Management Americas Inc32,217$591.2K0.00%+32,217New
Millennium Management LLC32,328$593.2K0.00%−148,020−82.1%Reduced
Squarepoint Ops LLC33,095$607.3K0.00%+19,635+145.9%Added
UBS Oconnor LLC33,448$613.8K0.01%00.0%Unchanged
Ghost Tree Capital, LLC35,000$642.3K0.31%00.0%Unchanged
UBS Group AG38,003$697.4K0.00%+36,192+1,998.5%Added
Jane Street Group, LLC42,315$776.5K0.00%−1,736−3.9%Reduced
Wells Fargo & Company43,165$792.1K0.00%−3,700−7.9%Reduced
Bellevue Group AG48,800$895.5K0.01%00.0%Unchanged
Rhumbline Advisers48,825$895.9K0.00%−1,344−2.7%Reduced
Citigroup Inc49,244$903.6K0.00%+1,611+3.4%Added
State of Wisconsin Investment Board52,882$970.4K0.00%+23,481+79.9%Added
Ensign Peak Advisors, Inc56,173$1.03M0.00%00.0%Unchanged
Swiss National Bank57,600$1.06M0.00%+1,200+2.1%Added
Barclays PLC63,177$1.15M0.00%−5,357−7.8%Reduced
Birchview Capital, LP70,448$1.29M1.10%00.0%Unchanged
Walleye Capital LLC70,850$1.30M0.02%+37,744+114.0%Added
Nuveen Asset Management, LLC89,263$1.64M0.00%−274−0.3%Reduced
Alliancebernstein L.P.91,529$1.68M0.00%+46,092+101.4%Added
Marshall Wace, LLP103,243$1.89M0.00%+91,550+782.9%Added
Bank of New York Mellon Corp114,388$2.10M0.00%−908−0.8%Reduced
Bank of America Corp115,749$2.12M0.00%+12,906+12.5%Added
Rafferty Asset Management, LLC115,828$2.13M0.01%−16,456−12.4%Reduced
Meridian Wealth Advisors, LLC122,315$2.24M0.56%00.0%Unchanged
HighTower Advisors, LLC131,900$2.42M0.00%00.0%Unchanged
Wetherby Asset Management Inc136,328$2.50M0.14%−95−0.1%Reduced
Candriam Luxembourg S.C.A.155,069$2.85M0.02%−32,000−17.1%Reduced
Goldman Sachs Group Inc159,469$2.93M0.00%−90,948−36.3%Reduced
Wellington Management Group LLP174,899$3.21M0.00%+34,310+24.4%Added
Two Sigma Investments, LP207,670$3.81M0.01%−52,750−20.3%Reduced
Charles Schwab Investment Management Inc212,104$3.89M0.00%−34,024−13.8%Reduced
Platinum Investment Management Ltd229,036$4.20M0.16%00.0%Unchanged
Schroder Investment Management Group237,443$4.36M0.01%−83,946−26.1%Reduced
Citadel Advisors LLC242,810$4.46M0.00%+175,999+263.4%Added
Sphera Funds Management Ltd.256,371$4.70M1.13%+206,371+412.7%Added
PFM Health Sciences, LP288,617$5.30M0.25%+160,914+126.0%Added
Two Sigma Advisers, LP310,200$5.69M0.01%+17,200+5.9%Added
Northern Trust Corp315,418$5.79M0.00%−13,579−4.1%Reduced
JPMorgan Chase & Co369,985$6.79M0.00%+3,088+0.8%Added
Morgan Stanley382,770$7.02M0.00%−1,885−0.5%Reduced
Eventide Asset Management, LLC434,026$7.96M0.14%+434,026New
Russell Investments Group, Ltd.459,056$8.42M0.02%+33,515+7.9%Added
Soleus Capital Management, L.P.549,183$10.1M1.02%+76,000+16.1%Added
Geode Capital Management, LLC646,159$11.9M0.00%−12,864−2.0%Reduced
Sofinnova Investments, Inc.743,294$13.6M0.95%−254,989−25.5%Reduced
ArrowMark Colorado Holdings LLC965,996$17.7M0.22%+7,116+0.7%Added