Insiders who reported open-market trades in the last 12 months at the companies VIKING GLOBAL INVESTORS LP files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
Neil Kumar - $45.20M in BBIO purchases and sales in the last 12 months
Jennifer E. Cook - $21.92M in BBIO purchases and sales in the last 12 months
Frank McCormick - $13.31M in BBIO purchases and sales in the last 12 months
Andrew Lo - $6.32M in BBIO purchases and sales in the last 12 months
Andrea Ellis - $5.65M in BBIO purchases and sales in the last 12 months
Hannah Valantine - $4.37M in BBIO purchases and sales in the last 12 months
More insiders (A-Z)
Browse nearby insider profiles in alphabetical order.
VIKING GLOBAL INVESTORS LP is an investment firm of Inhibrx Biosciences, Inc. (INBX). InsiderAlpha holds 2 primary Form 4 filings for it, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did VIKING GLOBAL INVESTORS LP last file a Form 4?
The most recent primary Form 4 on record is dated 7 October 2025, one of 2 filings going back to 2025.
Has VIKING GLOBAL INVESTORS LP been buying or selling stock?
Recorded transactions: 0 open-market purchases and 4 open-market sales ($165.29M) across all tracked filings.
VIKING GLOBAL INVESTORS LP files SEC Form 4 reports at Inhibrx Biosciences, Inc. (INBX). 2 SEC Form 4 filings on record, most recently on 7 October 2025. Most recent open-market trade: sold $808K of INBX on 7 October 2025. Lifetime open-market sales: $165.29M.
Recent transactions
4
The latest 4 SEC Form 4 transactions reported by VIKING GLOBAL INVESTORS LP.
InsiderAlpha's records for VIKING GLOBAL INVESTORS LP go back to 2025: 2 primary Form 4 filings, an average of 1.0 per year. No recorded transaction carries a Rule 10b5-1 plan flag. An absent flag does not establish whether a transaction was pre-arranged or discretionary.
