Vaughn D. Bryson serves as Executive at CHIRON CORP, where they oversee executive responsibilities. Since joining the company, Vaughn D. Bryson has executed 23 insider transactions totaling $1.5M, demonstrating a bullish approach to their equity position. Their most recent transaction on May 18, 2011 involved selling 1,139 shares valued at $37.9K.
Vaughn D. Bryson currently holds 1,139 shares of CHIRON CORP (CHIR), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Vaughn D. Bryson has been a net buyer of CHIR stock. They have purchased $1.4M and sold $153.8K worth of shares.
Vaughn D. Bryson's most recent insider trade was on May 18, 2011, when they sold 1,139 shares at $33.25 per share.
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| $N/A |
| Discretionary |
| Feb 8, 2008 | AGIX | $32.0K | Purchase | 50,000 | $0.64 | Discretionary |
| Feb 8, 2008 | AGIX | $32.0K | Purchase | 50,000 | $0.64 | Discretionary |
| Jan 22, 2008 | AGIX | $1.3K | Sale | 3,386 | $0.39 | Discretionary |
| Dec 28, 2007 | AGIX | $4.4K | Sale | 11,603 | $0.38 | Discretionary |
| Dec 28, 2007 | AGIX | $5.0K | Sale | 13,130 | $0.38 | Discretionary |
| Dec 27, 2007 | AGIX | $19.5K | Sale | 48,732 | $0.40 | Discretionary |
| Dec 26, 2007 | AGIX | $976 | Sale | 2,440 | $0.40 | Discretionary |
| Dec 20, 2007 | AGIX | $3.3K | Sale | 7,657 | $0.43 | Discretionary |
| Aug 29, 2007 | AGIX | $119.4K | Sale | 55,518 | $2.15 | Discretionary |
| Mar 6, 2007 | AMLN | $274.7K | Exercise | 12,000 | $22.89 | Discretionary |
| Jan 29, 2007 | ICOS | $408.0K | Disposition | 12,000 | $34.00 | Discretionary |
| Aug 10, 2006 | AMLN | $194.8K | Exercise | 12,000 | $16.23 | Discretionary |
| Jun 30, 2006 | AGIX | $223.7K | Purchase | 17,132 | $13.06 | Discretionary |
| Jun 30, 2006 | AGIX | $223.7K | Purchase | 17,132 | $13.06 | Discretionary |
| Jun 29, 2006 | AGIX | $296.6K | Purchase | 22,868 | $12.97 | Discretionary |
| Jun 29, 2006 | AGIX | $296.6K | Purchase | 22,868 | $12.97 | Discretionary |
| May 30, 2006 | AGIX | $277.4K | Purchase | 20,000 | $13.87 | Discretionary |
| May 11, 2006 | ICOS | $0 | Award | 7,000 | $N/A | Discretionary |
| Apr 19, 2006 | CHIR | $580.5K | Disposition | 12,093 | $48.00 | Discretionary |
| Dec 30, 2005 | CHIR | $0 | Gift | 2,318 | $N/A | Discretionary |
| Dec 30, 2005 | CHIR | $124.6K | Disposition | 2,800 | $44.50 | Discretionary |