| X | Filing Date | Trade Date | Ticker | Insider Name | Title | Trade Type | Price | Qty | Owned | ΔOwn | Value | 1d | 1w | 1m | 6m | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025-08-21 | LYEL | Seely Lynn | Pres, CEO | S - Sale | $10.54 | -7,257 | 67,571 | -10% | -$76,518 | ||||||
| 2025-08-21 | LYEL | Hill Stephen J. | COO | S - Sale | $10.54 | -1,004 | 15,845 | -6% | -$10,586 | ||||||
| 2025-08-21 | LYEL | Newton Charles W. | CFO | S - Sale | $10.54 | -1,453 | 25,306 | -5% | -$15,320 | ||||||
| 2025-08-21 | LYEL | Lee Gary K. | Chief Scientific Officer | S - Sale | $10.54 | -1,453 | 15,504 | -9% | -$15,320 | ||||||
| M | 2025-08-11 | LYEL | Seely Lynn | Pres, CEO | S - Sale | $10.43 | -797 | 34,828 | -2% | -$8,313 | |||||
| M | 2025-08-11 | LYEL | Hill Stephen J. | COO | S - Sale | $10.43 | -185 | 8,849 | -2% | -$1,930 | |||||
| M | 2025-08-11 | LYEL | Lee Gary K. | Chief Scientific Officer | S - Sale | $10.43 | -267 | 8,957 | -3% | -$2,785 | |||||
| M | 2025-08-11 | LYEL | Newton Charles W. | CFO | S - Sale | $10.43 | -267 | 18,759 | -1% | -$2,785 | |||||
| 2025-03-31 | LYEL | Brawley Otis W | Dir | P - Purchase | $0.56 | +35,640 | 35,640 | New | +$19,958 | ||||||
| 2025-03-21 | LYEL | Ramachandra Sumant | Dir | P - Purchase | $0.58 | +200,000 | 200,000 | New | +$115,220 | ||||||
| 2025-03-14 | LYEL | Klausner Richard | Dir | P - Purchase | $0.60 | +158,000 | 3,811,199 | +4% | +$94,942 | ||||||
| 2025-03-17 | LYEL | Newton Charles W. | CFO | P - Purchase | $0.56 | +200,000 | 372,725 | +116% | +$111,620 | ||||||
| 2025-03-14 | LYEL | Seely Lynn | Pres, CEO | P - Purchase | $0.61 | +175,000 | 712,500 | +33% | +$106,190 | 
| A | Amended filing | 
| D | Derivative transaction in filing (usually option exercise) | 
| E | Error detected in filing | 
| M | Multiple transactions in filing; earliest reported transaction date and weighted average transaction price | 
| S - Sale | Sale of securities on an exchange or to another person | 
| S - Sale+OE | Sale of securities on an exchange or to another person (after option exercise) | 
| F - Tax | Payment of exercise price or tax liability using portion of securities received from the company | 
| P - Purchase | Purchase of securities on an exchange or from another person |