Inhibrx Biosciences, Inc. insider trading
Every open-market purchase and sale by Inhibrx Biosciences, Inc.'s officers, directors and largest shareholders since November 4, 2021, and what the share price did next.
| Date | Insider | Trade | Shares | Price | Value | 1M after | 3M after | 6M after |
|---|
Does following Inhibrx Biosciences, Inc.’s insiders pay?
From August 22, 2024 to October 14, 2026, 6 insiders reported 17 open-market purchases and 3 sales not made under a pre-set plan in Inhibrx Biosciences, Inc. Twelve months after each purchase was reported, the shares were +103.6% against the S&P 500 on average (median +62.2%), over 10 purchases with a full year of prices; 100% beat the index. After sales, the shares moved +147.8% against the index over 12 months (a negative figure means selling was the right call). That rests on fewer than 20 purchases, too few to read much into. Buying each purchase the day after it was reported, an equal amount each, held 12 months or until that insider reported a sale, would have turned $10,000 on August 23, 2024 into $40,801 by November 2, 2026, +90.7% a year. It held shares 64% of the time; the S&P 500 on those same days, with Treasury bills otherwise, made $12,486 (+10.7% a year), and held throughout $13,810 (+16.0%).
| Insider | Role | Purchases | 12 months after their purchases | Beat the S&P 500 | Sales | 12 months after their sales | Latest report |
|---|---|---|---|---|---|---|---|
| Lappe Mark | Chief Executive Officer | 7 | +63.1% (4) | 100% | 0 | — | October 14, 2026 |
| Kayyem Jon Faiz | Director | 4 | +450.3% (1) | 100% | 0 | — | September 23, 2026 |
| Manhard Kimberly | Director | 1 | +58.0% (1) | 100% | 2 | — | September 15, 2026 |
| Vuori Kristiina Md | Director | 3 | +64.3% (3) | 100% | 0 | — | October 7, 2024 |
| Forsyth Douglas | Director | 2 | +82.4% (1) | 100% | 0 | — | September 8, 2026 |
| Viking Global Opportunities Parent Gp LLC | 10% owner | 0 | — | — | 1 | +147.8% (1) | October 9, 2025 |
When several insiders traded Inhibrx Biosciences, Inc.
Months when 2 or more insiders became net buyers, or 3 or more net sellers, of Inhibrx Biosciences, Inc. in reports dated in the 91 days before the month end, and how the stock did against the S&P 500 from that month end. After the 1 buying crowd with six months of prices, it averaged −10.1% against the index. One company's history is too short to judge by; the test across every company is the better guide.
| Month | Crowd | 3 months on, vs S&P 500 | 6 months | 12 months |
|---|---|---|---|---|
| September 30, 2026 | 3 buying | not yet | not yet | not yet |
| August 30, 2024 | 2 buying | −2.4% | −10.1% | +73.8% |