INBX: Inhibrx Biosciences, Inc. insider trading, 5% holders and institutional ownership

From public SEC filings: open-market insider purchases and sales (Form 4, last 180 days), holders of 5% or more (Schedules 13D and 13G) and institutional ownership (Form 13F). Insider and 5% data delayed 48 hours.

Insider trading

10 open-market buys totaling $1.85M and 0 sales totaling - in the last 180 days.

Insider buys

ScoreTickerCompanyInsiderRoleTrade dateValueHolding +Cluster
44INBXInhibrx Biosciences, Inc.Lappe MarkCEO2026-10-14$208K0%
44INBXInhibrx Biosciences, Inc.Lappe MarkCEO2026-10-14$210K0%
18INBXInhibrx Biosciences, Inc.Lappe MarkCEO2026-10-14$9K0%
44INBXInhibrx Biosciences, Inc.Lappe MarkCEO2026-10-14$206K1%
44INBXInhibrx Biosciences, Inc.Lappe MarkCEO2026-10-14$208K1%
18INBXInhibrx Biosciences, Inc.Lappe MarkCEO2026-10-14$9K0%
43INBXInhibrx Biosciences, Inc.Lappe MarkCEO2026-09-28$148K0%
45INBXInhibrx Biosciences, Inc.Lappe MarkCEO2026-09-28$305K0%
45INBXInhibrx Biosciences, Inc.Lappe MarkCEO2026-09-25$329K0%
44INBXInhibrx Biosciences, Inc.Lappe MarkCEO2026-09-25$217K0%

Activist and 5% holders

FiledWhatHolderStakeChangeFiling
2026-08-1413G amendmentVIKING GLOBAL INVESTORS LP9.30%SEC
2026-08-03New 13G stakeBANK OF AMERICA CORP /DE/5.90%SEC

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