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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, Q1 2024

Institutional positions in Inhibrx Biosciences, Inc. as of Mar 31, 2024. 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
126
0 vs. Q4 2023
Shares held
38.3M
−2.30M (−5.7%) vs. Q4 2023
Total value
$1.34B
−$203.6M (−13.2%) vs. Q4 2023
New holders
27
38 more added
Sold out
27
38 more reduced

Compare with Q4 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 holdersQ1 2024: 126 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 heldQ1 2024: $1.34B
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, Q1 2024

Shares, value and share of portfolio for each institution holding Inhibrx Biosciences, Inc.; share changes are against Q4 2023.

Institutions holding INBX in Q1 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Two Sigma Advisers, LP282,000$9.86M0.02%+71,200+33.8%Added
Barclays PLC282,303$9.87M0.00%+193,438+217.7%Added
Northern Trust Corp307,541$10.8M0.00%−6,348−2.0%Reduced
Citigroup Inc331,302$11.6M0.01%+286,612+641.3%Added
TIG Advisors, LLC333,988$11.7M1.36%+333,988New
Goldman Sachs Group Inc376,540$13.2M0.00%+223,360+145.8%Added
Slotnik Capital, LLC419,778$14.7M9.48%+419,778New
UBS Group AG445,197$15.6M0.01%+364,412+451.1%Added
MMCAP International Inc. SPC451,433$15.8M2.05%+451,433New
Qube Research & Technologies Ltd542,971$19.0M0.03%+502,472+1,240.7%Added
Morgan Stanley549,469$19.2M0.00%+252,550+85.1%Added
Tang Capital Management LLC700,000$24.5M2.55%+700,000New
Geode Capital Management, LLC704,825$24.6M0.00%+17,465+2.5%Added
Bank of America Corp741,591$25.9M0.00%+48,611+7.0%Added
Walleye Capital LLC800,000$28.0M0.30%+800,000New
ArrowMark Colorado Holdings LLC891,220$31.2M0.35%−65,661−6.9%Reduced
Alpine Associates Management Inc.1,054,475$36.9M1.44%+1,054,475New
Citadel Advisors LLC1,204,252$42.1M0.04%+949,414+372.6%Added
Sofinnova Investments, Inc.1,302,645$45.5M2.69%+529,688+68.5%Added
TCG Crossover Management, LLC1,750,387$61.2M4.84%00.0%Unchanged
Vanguard Group Inc1,861,469$65.1M0.00%−12,854−0.7%Reduced
State Street Corp2,417,584$84.5M0.00%+781,858+47.8%Added
Ra Capital Management, L.P.2,629,837$91.9M1.17%−2,094,370−44.3%Reduced
BlackRock Inc.2,751,705$96.2M0.00%+36,033+1.3%Added
Perceptive Advisors LLC4,256,104$148.8M2.62%00.0%Unchanged
Viking Global Investors LPSuperinvestorViking Global Investors7,150,826$250.0M0.93%00.0%Unchanged
Woodline Partners LP0$00.00%−2,318,576−100.0%Sold out
Vestal Point Capital, LP0$00.00%−1,530,000−100.0%Sold out
Loomis Sayles & Co L P0$00.00%−1,082,225−100.0%Sold out
Capital Research Global Investors0$00.00%−712,360−100.0%Sold out
Sphera Funds Management Ltd.0$00.00%−226,551−100.0%Sold out
Candriam Luxembourg S.C.A.0$00.00%−135,069−100.0%Sold out
Schroder Investment Management Group0$00.00%−131,295−100.0%Sold out
Logos Global Management LP0$00.00%−100,000−100.0%Sold out
Schonfeld Strategic Advisors LLC0$00.00%−89,330−100.0%Sold out
Exome Asset Management LLC0$00.00%−73,158−100.0%Sold out
HAP Trading, LLC0$00.00%−46,426−100.0%Sold out
Ghost Tree Capital, LLC0$00.00%−35,000−100.0%Sold out
Bellevue Group AG0$00.00%−24,600−100.0%Sold out
Campbell & CO Investment Adviser LLC0$00.00%−23,516−100.0%Sold out
Tudor Investment Corp Et Al0$00.00%−18,379−100.0%Sold out
Prelude Capital Management, LLC0$00.00%−16,236−100.0%Sold out
Readystate Asset Management LP0$00.00%−13,839−100.0%Sold out
Royce & Associates LP0$00.00%−12,995−100.0%Sold out
Group One Trading, L.P.0$00.00%−12,666−100.0%Sold out
Natixis0$00.00%−11,000−100.0%Sold out
Concurrent Investment Advisors, LLC0$00.00%−10,844−100.0%Sold out
State Board of Administration of Florida Retirement System0$00.00%−9,818−100.0%Sold out
Cetera Advisor Networks LLC0$00.00%−7,200−100.0%Sold out
Kennedy Capital Management, Inc.0$00.00%−6,991−100.0%Sold out
Belvedere Trading LLC0$00.00%−5,682−100.0%Sold out
West Tower Group, LLC0$00.00%−2,300−100.0%Sold out
AJOVista, LLC0$00.00%−678−100.0%Sold out