Robert F. Williamson III serves as Executive at Pharmasset Inc, where they oversee executive responsibilities. Since joining the company, Robert F. Williamson III has executed 30 insider transactions totaling $3.6M, demonstrating a bearish approach to their equity position. Their most recent transaction on Nov 12, 2025 involved purchasing 9,498 shares valued at $19.9K.
Robert F. Williamson III currently holds 9,864 shares of Pharmasset Inc (VRUS), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Robert F. Williamson III has been a net seller of VRUS stock. They have purchased $338.7K and sold $3.3M worth of shares.
Robert F. Williamson III's most recent insider trade was on Nov 12, 2025, when they purchased 9,498 shares at $2.10 per share.
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| $1.38 |
| Discretionary |
| May 29, 2024 | CATX | $25.0K | Purchase | 18,656 | $1.34 | Discretionary |
| May 29, 2024 | CATX | $15.0K | Purchase | 11,375 | $1.32 | Discretionary |
| Jan 30, 2024 | CATX | $2.5K | Purchase | 3,500 | $0.70 | Discretionary |
| Jan 30, 2024 | CATX | $13.2K | Purchase | 18,579 | $0.71 | Discretionary |
| Jan 30, 2024 | CATX | $3.6K | Purchase | 5,127 | $0.71 | Discretionary |
| Jan 30, 2024 | CATX | $40.6K | Purchase | 57,121 | $0.71 | Discretionary |
| Jan 30, 2024 | CATX | $30.9K | Purchase | 42,879 | $0.72 | Discretionary |
| Jan 29, 2024 | CATX | $2.6K | Purchase | 4,031 | $0.64 | Discretionary |
| Jan 29, 2024 | CATX | $13.6K | Purchase | 21,235 | $0.64 | Discretionary |
| Jan 26, 2024 | CATX | $9.1K | Purchase | 14,850 | $0.61 | Discretionary |
| Jan 26, 2024 | CATX | $7.5K | Purchase | 12,250 | $0.61 | Discretionary |
| Jan 26, 2024 | CATX | $27.0K | Purchase | 50,000 | $0.54 | Discretionary |
| Jan 26, 2024 | CATX | $13.8K | Purchase | 25,000 | $0.55 | Discretionary |
| Jan 26, 2024 | CATX | $5.0K | Purchase | 8,513 | $0.59 | Discretionary |
| Jan 25, 2024 | CATX | $10.8K | Purchase | 22,134 | $0.49 | Discretionary |
| Jan 24, 2024 | CATX | $14.6K | Purchase | 29,862 | $0.49 | Discretionary |
| Dec 21, 2023 | CATX | $1.2K | Purchase | 3,663 | $0.33 | Discretionary |
| Dec 19, 2023 | CATX | $4.4K | Purchase | 13,680 | $0.32 | Discretionary |
| Dec 18, 2023 | CATX | $2.6K | Purchase | 10,000 | $0.26 | Discretionary |
| Jan 12, 2012 | VRUS | $959.0K | Tender | 7,000 | $137.00 | Discretionary |
| Oct 11, 2011 | VRUS | $0 | Award | 1,000 | $N/A | Discretionary |
| May 6, 2011 | VRUS | $60.0K | Option Exercise | 20,000 | $3.00 | Discretionary |
| May 6, 2011 | VRUS | $3.3M | Sale | 31,666 | $104.36 | Discretionary |
| Mar 23, 2011 | VRUS | $0 | Award | 2,000 | $N/A | Discretionary |
| Mar 18, 2010 | VRUS | $0 | Award | 2,000 | $N/A | Discretionary |
| Mar 24, 2009 | VRUS | $0 | Award | 2,000 | $N/A | Discretionary |
| Sep 24, 2008 | VRUS | $0 | Award | 2,000 | $N/A | Discretionary |
| Sep 24, 2008 | VRUS | $0 | Award | 2,000 | $N/A | Discretionary |