LAPPE MARK (Chief Executive Officer) purchased 1.4% of their position (10K shares) of INHIBRX BIOSCIENCES, INC. on the open market
Open‑market purchase worth $998.8K — a small addition. The strongest form of insider conviction signal.
P · 4 purchases
Filed: 9/28/2026ACC: 0001366074-26-000004
DirectorOfficer· Chief Executive Officer
Since May 2024
+10K
Net shares
Net buyer
$998.8K
Total acquired
4
Open market trades
4B · 0S
4
Total transactions
10K acquired
Non-Derivative Transactions4
Common Stock
Indirect
Shares
+3.32K
Price / share
$98.87
Trade value
$328.63K
% of position
0.5%
9/25/2026
730.55K→733.87K
Common Stock
Indirect
Shares
+2.18K
Price / share
$99.60
Trade value
$216.73K
% of position
0.3%
9/25/2026
733.87K→736.05K
Common Stock
Indirect
Shares
+1.50K
Price / share
$98.88
Trade value
$148.32K
% of position
0.2%
9/28/2026
736.05K→737.55K
Common Stock
Indirect
Shares
+3K
Price / share
$101.70
Trade value
$305.11K
% of position
0.4%
9/28/2026
737.55K→740.55K
Total
Net shares
+10K
Net value
$998.78K
| Security | Date | Type | Shares | Price / Share | Trade Value | % of Position | Held Before | Held After |
|---|---|---|---|---|---|---|---|---|
| Common Stock Indirect | 9/25/2026 | P · Purchase | +3.32K | $98.87 | $328.63K | 0.5% | 730.55K | 733.87K |
| Common Stock Indirect | 9/25/2026 | P · Purchase | +2.18K | $99.60 | $216.73K | 0.3% | 733.87K | 736.05K |
| Common Stock Indirect | 9/28/2026 | P · Purchase | +1.50K | $98.88 | $148.32K | 0.2% | 736.05K | 737.55K |
| Common Stock Indirect | 9/28/2026 | P · Purchase | +3K | $101.70 | $305.11K | 0.4% | 737.55K | 740.55K |
| Total | +10K | $998.78K | ||||||
Derivative Transactions0
No derivative transactions reported
Non-Derivative Holdings (Post-Transaction)2
Common Stock
IndirectShares owned165K
Common Stock
IndirectShares owned54.87K
Total
219.87K indirect219.87K
| Security Title | Shares Owned | Ownership Type |
|---|---|---|
| Common Stock | 165K | Indirect |
| Common Stock | 54.87K | Indirect |
| Total | 219.87K | 219.87K indirect |
Derivative Holdings (Post-Transaction)0
No derivative holdings reported