Kastenmayer James Paul has filed 3 insider transactions across 2 companies since February 2023.
Most recent transaction: a grant/award of 130000 shares of ArriVent BioPharma, Inc. ($AVBP) on February 02, 2026.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feb. 2, 2026 | ArriVent BioPharma, Inc. | $AVBP | Kastenmayer James Paul | General Counsel | A | Stock Option (right to buy) | 130000 | $0.00 | 130,000.0000 | 38,462,600 | 9999.99% | 0.34% |
| Feb. 3, 2025 | ArriVent BioPharma, Inc. | $AVBP | Kastenmayer James Paul | General Counsel | A | Stock Option (right to buy) | 102000 | $0.00 | 102,000.0000 | 31,469,328 | 9999.99% | 0.32% |
| Feb. 23, 2023 | Spyre Therapeutics, Inc. | $SYRE | Kastenmayer James Paul | General Counsel | A | Employee Stock Option (right to buy) | 500000 | $0.00 | 500,000.0000 | 0 | 9999.99% | 0.00% |