INBX

Nasdaq

Inhibrx Biosciences, Inc.

Latest disclosureSeptember 28, 2026

Insider score Why 80?: 80/ 100
Qualifying buys · 30d: $5.5M

14 purchases · 5 sales

Price by TradingView

Insider transactions 28

Limited filing history

Filters

Last 30 daysInsiders bought $5.5M · 3 buyers, led by Mark Lappe (CEO) with $3.64M. Sales: $279.01K by 1 insider.

Showing the first 6 of 9 trades on this page.

Award disclosedAmended filing

Douglas Forsyth

Director

Amended

Related filings are retained as evidence. This economic transaction is counted once.

This amendment supersedes the related original transaction.

Original SEC filing ↗Amended SEC filing ↗

Stock Option (right to buy)

Derivative security · not the ordinary share price.

Value context: Non-cash award
Reported price: Award · no purchase price

Understand this price

The filing reports a zero transaction price for this award. It does not mean the awarded securities have no market value.

Award disclosedAmended filing

Kristiina MD Vuori

Director

Amended

Related filings are retained as evidence. This economic transaction is counted once.

This amendment supersedes the related original transaction.

Original SEC filing ↗Amended SEC filing ↗

Stock Option (right to buy)

Derivative security · not the ordinary share price.

Value context: Non-cash award
Reported price: Award · no purchase price

Understand this price

The filing reports a zero transaction price for this award. It does not mean the awarded securities have no market value.

Award disclosedAmended filing

Kimberly Manhard

Director

Amended

Related filings are retained as evidence. This economic transaction is counted once.

This amendment supersedes the related original transaction.

Original SEC filing ↗Amended SEC filing ↗

Stock Option (right to buy)

Derivative security · not the ordinary share price.

Value context: Non-cash award
Reported price: Award · no purchase price

Understand this price

The filing reports a zero transaction price for this award. It does not mean the awarded securities have no market value.

Award disclosedAmended filing

Jon Faiz Kayyem

Director

Amended

Related filings are retained as evidence. This economic transaction is counted once.

This amendment supersedes the related original transaction.

Original SEC filing ↗Amended SEC filing ↗

Stock Option (right to buy)

Derivative security · not the ordinary share price.

Value context: Non-cash award
Reported price: Award · no purchase price

Understand this price

The filing reports a zero transaction price for this award. It does not mean the awarded securities have no market value.

Award disclosed

Kristiina MD Vuori

Director

Superseded by later filing

Related filings are retained as evidence. This economic transaction is counted once.

This original record remains available as evidence. The later filing replaces it in totals and buying signals.

Superseding SEC filing ↗Original transaction filing ↗

Stock Option (right to buy)

Derivative security · not the ordinary share price.

Value context: Non-cash award
Reported price: Award · no purchase price

Understand this price

The filing reports a zero transaction price for this award. It does not mean the awarded securities have no market value.

Award disclosed

Jon Faiz Kayyem

Director

Superseded by later filing

Related filings are retained as evidence. This economic transaction is counted once.

This original record remains available as evidence. The later filing replaces it in totals and buying signals.

Superseding SEC filing ↗Original transaction filing ↗

Stock Option (right to buy)

Derivative security · not the ordinary share price.

Value context: Non-cash award
Reported price: Award · no purchase price

Understand this price

The filing reports a zero transaction price for this award. It does not mean the awarded securities have no market value.

Award disclosed

Douglas Forsyth

Director

Superseded by later filing

Related filings are retained as evidence. This economic transaction is counted once.

This original record remains available as evidence. The later filing replaces it in totals and buying signals.

Superseding SEC filing ↗Original transaction filing ↗

Stock Option (right to buy)

Derivative security · not the ordinary share price.

Value context: Non-cash award
Reported price: Award · no purchase price

Understand this price

The filing reports a zero transaction price for this award. It does not mean the awarded securities have no market value.

Award disclosed

Kimberly Manhard

Director

Superseded by later filing

Related filings are retained as evidence. This economic transaction is counted once.

This original record remains available as evidence. The later filing replaces it in totals and buying signals.

Superseding SEC filing ↗Original transaction filing ↗

Stock Option (right to buy)

Derivative security · not the ordinary share price.

Value context: Non-cash award
Reported price: Award · no purchase price

Understand this price

The filing reports a zero transaction price for this award. It does not mean the awarded securities have no market value.

Award disclosed

David Matly

President

Stock Option (right to buy)

Derivative security · not the ordinary share price.

Value context: Non-cash award
Reported price: Award · no purchase price

Understand this price

The filing reports a zero transaction price for this award. It does not mean the awarded securities have no market value.

Reporting insider	Security / transaction	Amount / price	Value	Traded / disclosed	Source
Director Amended Related filings are retained as evidence. This economic transaction is counted once. This amendment supersedes the related original transaction. Original SEC filing ↗Amended SEC filing ↗	Stock Option (right to buy)Grant or award	Derivative units10,000Award · no purchase price	Non-cash award	Jun 3Filed Sep 18 · 107d later	SEC filing
Director Amended Related filings are retained as evidence. This economic transaction is counted once. This amendment supersedes the related original transaction. Original SEC filing ↗Amended SEC filing ↗	Stock Option (right to buy)Grant or award	Derivative units10,000Award · no purchase price	Non-cash award	Jun 3Filed Sep 18 · 107d later	SEC filing
Director Amended Related filings are retained as evidence. This economic transaction is counted once. This amendment supersedes the related original transaction. Original SEC filing ↗Amended SEC filing ↗	Stock Option (right to buy)Grant or award	Derivative units10,000Award · no purchase price	Non-cash award	Jun 3Filed Sep 18 · 107d later	SEC filing
Director Amended Related filings are retained as evidence. This economic transaction is counted once. This amendment supersedes the related original transaction. Original SEC filing ↗Amended SEC filing ↗	Stock Option (right to buy)Grant or award	Derivative units10,000Award · no purchase price	Non-cash award	Jun 3Filed Sep 18 · 107d later	SEC filing
Director Superseded by later filing Related filings are retained as evidence. This economic transaction is counted once. This original record remains available as evidence. The later filing replaces it in totals and buying signals. Superseding SEC filing ↗Original transaction filing ↗	Stock Option (right to buy)Grant or award	Derivative units15,000Award · no purchase price	Non-cash award	Jun 3Filed Jun 4 · 1d later	SEC filing
Director Superseded by later filing Related filings are retained as evidence. This economic transaction is counted once. This original record remains available as evidence. The later filing replaces it in totals and buying signals. Superseding SEC filing ↗Original transaction filing ↗	Stock Option (right to buy)Grant or award	Derivative units15,000Award · no purchase price	Non-cash award	Jun 3Filed Jun 4 · 1d later	SEC filing
Director Superseded by later filing Related filings are retained as evidence. This economic transaction is counted once. This original record remains available as evidence. The later filing replaces it in totals and buying signals. Superseding SEC filing ↗Original transaction filing ↗	Stock Option (right to buy)Grant or award	Derivative units15,000Award · no purchase price	Non-cash award	Jun 3Filed Jun 4 · 1d later	SEC filing
Director Superseded by later filing Related filings are retained as evidence. This economic transaction is counted once. This original record remains available as evidence. The later filing replaces it in totals and buying signals. Superseding SEC filing ↗Original transaction filing ↗	Stock Option (right to buy)Grant or award	Derivative units15,000Award · no purchase price	Non-cash award	Jun 3Filed Jun 4 · 1d later	SEC filing
President	Stock Option (right to buy)Grant or award	Derivative units50,000Award · no purchase price	Non-cash award	Apr 24Filed Apr 27 · 3d later	SEC filing

Congress transactions 0

All Congress filings

No disclosed congressional trades for INBX in the imported filings.

This reflects the filings imported so far, not a complete trading history.

Why this buying score?

Qualifying common-equity purchase value

$5,098,421 of common-equity purchase value after transaction-age decay across 180 days.

+25 pts

Distinct buying groups

3 distinct reporting-owner group(s). Joint rows count once; identity is not proof of discretion.

+20 pts

CEO purchase

Qualifying common-equity P acquisition; no disclosed plan, exercise or excluded purchase context detected.

+15 pts

Insider buying cluster

3 buying groups inside 30 transaction-date days, public by the snapshot cutoff.

+15 pts

Repeated purchases

A reporting-owner group bought on at least two distinct dates within the cluster window.

+5 pts

This score describes qualifying insider purchases at issuer level. Read the methodology

Sources and coverage

Limited filing history · Market-wide discovery does not establish complete company history. View coverage

Source: SEC EDGAR · Form 4
Issuer CIK: 0002007919
Latest public acceptance: Sep 28, 2026, 09:47 PM UTC
Score calculated: Oct 7, 2026, 12:12 AM UTC
Parser: form4-parser-1.5
Classifier: form4-classifier-1.1
Scoring methodology: insider-experimental-1.1
Availability: Public filing time, not trade date

Open a transaction's SEC filing for the primary evidence. A code P may describe an open-market or private purchase; classification is not proof of intent.

Insider activity can have many explanations. Signal Strength is not a probability of profit or a recommendation to trade.

Reporting insider

Security / transaction

Amount / price

Value

Traded / disclosed

Source

Director

Amended

Related filings are retained as evidence. This economic transaction is counted once.

This amendment supersedes the related original transaction.

Original SEC filing ↗Amended SEC filing ↗

Stock Option (right to buy)Grant or award

Derivative units10,000Award · no purchase price

Non-cash award

Jun 3Filed Sep 18 · 107d later

SEC filing

Director

Amended

Related filings are retained as evidence. This economic transaction is counted once.

This amendment supersedes the related original transaction.

Original SEC filing ↗Amended SEC filing ↗

Stock Option (right to buy)Grant or award

Derivative units10,000Award · no purchase price

Non-cash award

Jun 3Filed Sep 18 · 107d later

SEC filing

Director

Amended

Related filings are retained as evidence. This economic transaction is counted once.

This amendment supersedes the related original transaction.

Original SEC filing ↗Amended SEC filing ↗

Stock Option (right to buy)Grant or award

Derivative units10,000Award · no purchase price

Non-cash award

Jun 3Filed Sep 18 · 107d later

SEC filing

Director

Amended

Related filings are retained as evidence. This economic transaction is counted once.

This amendment supersedes the related original transaction.

Original SEC filing ↗Amended SEC filing ↗

Stock Option (right to buy)Grant or award

Derivative units10,000Award · no purchase price

Non-cash award

Jun 3Filed Sep 18 · 107d later

SEC filing

Director

Superseded by later filing

Related filings are retained as evidence. This economic transaction is counted once.

This original record remains available as evidence. The later filing replaces it in totals and buying signals.

Superseding SEC filing ↗Original transaction filing ↗

Stock Option (right to buy)Grant or award

Derivative units15,000Award · no purchase price

Non-cash award

Jun 3Filed Jun 4 · 1d later

SEC filing

Director

Superseded by later filing

Related filings are retained as evidence. This economic transaction is counted once.

This original record remains available as evidence. The later filing replaces it in totals and buying signals.

Superseding SEC filing ↗Original transaction filing ↗

Stock Option (right to buy)Grant or award

Derivative units15,000Award · no purchase price

Non-cash award

Jun 3Filed Jun 4 · 1d later

SEC filing

Director

Superseded by later filing

Related filings are retained as evidence. This economic transaction is counted once.

This original record remains available as evidence. The later filing replaces it in totals and buying signals.

Superseding SEC filing ↗Original transaction filing ↗

Stock Option (right to buy)Grant or award

Derivative units15,000Award · no purchase price

Non-cash award

Jun 3Filed Jun 4 · 1d later

SEC filing

Director

Superseded by later filing

Related filings are retained as evidence. This economic transaction is counted once.

This original record remains available as evidence. The later filing replaces it in totals and buying signals.

Superseding SEC filing ↗Original transaction filing ↗

Stock Option (right to buy)Grant or award

Derivative units15,000Award · no purchase price

Non-cash award

Jun 3Filed Jun 4 · 1d later

SEC filing

President

Stock Option (right to buy)Grant or award

Derivative units50,000Award · no purchase price

Non-cash award

Apr 24Filed Apr 27 · 3d later

SEC filing

Why this buying score?

Qualifying common-equity purchase value

$5,098,421 of common-equity purchase value after transaction-age decay across 180 days.

+25 pts

Distinct buying groups

3 distinct reporting-owner group(s). Joint rows count once; identity is not proof of discretion.

+20 pts

CEO purchase

Qualifying common-equity P acquisition; no disclosed plan, exercise or excluded purchase context detected.

+15 pts

Insider buying cluster

3 buying groups inside 30 transaction-date days, public by the snapshot cutoff.

+15 pts

Repeated purchases

A reporting-owner group bought on at least two distinct dates within the cluster window.

+5 pts

This score describes qualifying insider purchases at issuer level. Read the methodology

Sources and coverage

Limited filing history · Market-wide discovery does not establish complete company history. View coverage

Source: SEC EDGAR · Form 4
Issuer CIK: 0002007919
Latest public acceptance: Sep 28, 2026, 09:47 PM UTC
Score calculated: Oct 7, 2026, 12:12 AM UTC
Parser: form4-parser-1.5
Classifier: form4-classifier-1.1
Scoring methodology: insider-experimental-1.1
Availability: Public filing time, not trade date

Open a transaction's SEC filing for the primary evidence. A code P may describe an open-market or private purchase; classification is not proof of intent.