Skip to contentWilliamson Robert F III — IsoRay, Inc. insider: 54 transactions · InsiderLensWilliamson Robert F III
- Director at Pharmasset Inc · on record since Apr 26, 2007
- Director at IsoRay, Inc. · on record since Mar 17, 2023
Insider trading activity of Williamson Robert F III
- Transactions on record
- 54
- since Jan 18, 2008
- Open-market buys
- 23
- $470.7K
- Open-market sells
- 1
- $3.3M
- Companies traded
- 2
- last filing Mar 4, 2026
Figures computed from official regulatory filings — methodology.
Companies where Williamson Robert F III has traded
Track record of Williamson Robert F III
Statistical track record
Free- Open-market buys
- 23
- Last buy
- Nov 12, 2025
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Create a free account→Transaction history of Williamson Robert F III
Co-insiders of Williamson Robert F III
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Bhatnagar AnshuPharmasset Inc
| Company | Filed | Type | Qty | Price | Value · USD | Src |
|---|
| Mar 4, 2026 | AwardD | 50,000 | 0.00 USD | $0 | SEC |
| Nov 14, 2025 | Buy | 9,498 | 2.10 USD | $19.9K | SEC |
| Apr 1, 2025 | Buy | 38,145 | 2.14 USD | $81.6K | SEC |
| Apr 1, 2025 | Buy | 22,192 | 2.27 USD | $50.4K | SEC |
| Mar 5, 2025 | AwardD | 50,000 | 0.00 USD | $0 | SEC |
| Jun 24, 2024 | AwardD | 23,000 | 0.00 USD | $0 | SEC |
| Jun 3, 2024 | Buy | 55,000 | 1.38 USD | $75.9K | SEC |
| May 30, 2024 | Buy | 18,656 | 1.34 USD | $25K | SEC |
| May 30, 2024 | Buy | 11,375 | 1.32 USD | $15K | SEC |
| Feb 1, 2024 | Buy | 57,121 | 0.71 USD | $40.6K | SEC |
| Feb 1, 2024 | Buy | 42,879 | 0.72 USD | $30.9K | SEC |
| Feb 1, 2024 | Buy | 18,579 | 0.71 USD | $13.2K | SEC |
| Feb 1, 2024 | Buy | 5,127 | 0.71 USD | $3.6K | SEC |
| Feb 1, 2024 | Buy | 3,500 | 0.70 USD | $2.5K | SEC |
| Jan 30, 2024 | Buy | 8,513 | 0.59 USD | $5K | SEC |
| Jan 30, 2024 | Buy | 21,235 | 0.64 USD | $13.6K | SEC |
| Jan 30, 2024 | Buy | 50,000 | 0.54 USD | $27K | SEC |
| Jan 30, 2024 | Buy | 14,850 | 0.61 USD | $9.1K | SEC |
| Jan 30, 2024 | Buy | 12,250 | 0.61 USD | $7.5K | SEC |
| Jan 30, 2024 | Buy | 25,000 | 0.55 USD | $13.8K | SEC |
| Jan 30, 2024 | Buy | 4,031 | 0.64 USD | $2.6K | SEC |
| Jan 26, 2024 | Buy | 22,134 | 0.49 USD | $10.8K | SEC |
| Jan 26, 2024 | Buy | 29,862 | 0.49 USD | $14.6K | SEC |
| Dec 26, 2023 | Buy | 3,663 | 0.33 USD | $1.2K | SEC |
| Dec 19, 2023 | Buy | 13,680 | 0.32 USD | $4.4K | SEC |