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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, Q4 2024

Institutional positions in Inhibrx Biosciences, Inc. as of Dec 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
101
+6 vs. Q3 2024
Shares held
11.2M
+2.29M (+25.8%) vs. Q3 2024
Total value
$171.9M
+$32.9M (+23.7%) vs. Q3 2024
New holders
17
31 more added
Sold out
11
29 more reduced

1 institution that held it in Q3 2024 haven't filed for Q4 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2024: 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 holdersQ4 2024: 101 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 heldQ4 2024: $171.9M
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, Q4 2024

Shares, value and share of portfolio for each institution holding Inhibrx Biosciences, Inc.; share changes are against Q3 2024.

Institutions holding INBX in Q4 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Viking Global Investors LPSuperinvestorViking Global Investors1,787,705$27.5M0.09%00.0%Unchanged
Renaissance Technologies LLC0$00.00%−25,100−100.0%Sold out
Squarepoint Ops LLC0$00.00%−21,066−100.0%Sold out
Jacobs Levy Equity Management, Inc0$00.00%−20,469−100.0%Sold out
AQR Capital Management LLC0$00.00%−13,012−100.0%Sold out
Alps Advisors Inc0$00.00%−10,952−100.0%Sold out
Erste Asset Management GmbH0$00.00%−2,175−100.0%Sold out
Covestor Ltd0$00.00%−1,666−100.0%Sold out
Larson Financial Group LLC0$00.00%−581−100.0%Sold out
Capital Performance Advisors LLP0$00.00%−61−100.0%Sold out
SRS Capital Advisors, Inc.0$00.00%−10−100.0%Sold out
Bessemer Group Inc0$00.00%−12−100.0%Sold out
Bluefin Capital Management, LLC––––Not filed