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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, 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
Loomis Sayles & Co L P1,116,484$20.5M0.04%−34,847−3.0%Reduced
Capital Research Global Investors1,221,721$22.4M0.01%−530,192−30.3%Reduced
FMR LLC1,517,595$27.8M0.00%−254,137−14.3%Reduced
Woodline Partners LP1,524,915$28.0M0.33%00.0%Unchanged
State Street Corp1,616,771$29.7M0.00%−200,645−11.0%Reduced
TCG Crossover Management, LLC1,750,387$32.1M4.73%+1,750,387New
Vanguard Group Inc1,789,811$32.8M0.00%+18,271+1.0%Added
BlackRock Inc.2,539,773$46.6M0.00%−6,830−0.3%Reduced
Perceptive Advisors LLC4,256,104$78.1M2.63%+631,922+17.4%Added
Ra Capital Management, L.P.4,724,207$86.7M1.71%+870,340+22.6%Added
Viking Global Investors LPSuperinvestorViking Global Investors7,150,826$131.2M0.53%+511,627+7.7%Added
Point72 Asset Management, L.P.0$00.00%−319,500−100.0%Sold out
Renaissance Technologies LLC0$00.00%−92,300−100.0%Sold out
Natixis0$00.00%−45,000−100.0%Sold out
D. E. Shaw & Co., Inc.0$00.00%−35,497−100.0%Sold out
Bamco Inc0$00.00%−30,000−100.0%Sold out
Tri Locum Partners LP0$00.00%−15,268−100.0%Sold out
State Board of Administration of Florida Retirement System0$00.00%−9,748−100.0%Sold out
Connacht Asset Management LP0$00.00%−9,173−100.0%Sold out
Harbor Capital Advisors, Inc.0$00.00%−917−100.0%Sold out