Grant Yonehiro serves as Executive at MAXYGEN INC, where they oversee executive responsibilities. Since joining the company, Grant Yonehiro has executed 12 insider transactions totaling $9.0K, demonstrating a bullish approach to their equity position. Their most recent transaction on Oct 22, 2025 involved receiving (via award) 30,000 shares valued at $0.
Grant Yonehiro currently holds 38,918 shares of MAXYGEN INC (MAXY), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Grant Yonehiro has been a net buyer of MAXY stock. They have purchased $9.0K and sold $0 worth of shares.
Grant Yonehiro's most recent insider trade was on Oct 22, 2025, when they sold 30,000 shares at $0.00 per share.
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| $0.78 |
| Discretionary |
| Dec 6, 2022 | BOLT | $3.0K | Purchase | 2,500 | $1.18 | Discretionary |
| Jun 6, 2022 | BOLT | $4.1K | Purchase | 2,500 | $1.64 | Discretionary |
| May 16, 2011 | MAXY | $0 | Disposition | 19,800 | $N/A | Discretionary |
| May 16, 2011 | MAXY | $0 | Option Exercise | 19,800 | $N/A | Discretionary |
| Nov 30, 2010 | MAXY | $87.8K | Option Exercise | 25,000 | $3.51 | Discretionary |
| May 3, 2010 | MAXY | $142.0K | Payment | 21,132 | $6.72 | Discretionary |
| Sep 18, 2009 | MAXY | $6.8K | Payment | 1,015 | $6.68 | Discretionary |
| May 1, 2009 | MAXY | $40.9K | Payment | 7,240 | $5.65 | Discretionary |
| Nov 26, 2008 | MAXY | $0 | Award | 10,000 | $N/A | Discretionary |
| May 7, 2008 | MAXY | $0 | Award | 80,000 | $N/A | Discretionary |