William John Sibold serves as Executive at AVANIR PHARMACEUTICALS, INC., where they oversee executive responsibilities. Since joining the company, William John Sibold has executed 10 insider transactions totaling $10.0M, demonstrating a bearish approach to their equity position. Their most recent transaction on Jan 26, 2026 involved selling 1,577 shares valued at $776.5K.
William John Sibold currently holds 148,497 shares of AVANIR PHARMACEUTICALS, INC. (AVNR), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, William John Sibold has been a net seller of AVNR stock. They have purchased $0 and sold $10.0M worth of shares.
William John Sibold's most recent insider trade was on Jan 26, 2026, when they sold 1,577 shares at $492.42 per share.
Get notified when new Form 4 filings are submitted
| $575.34 |
| Discretionary |
| Dec 3, 2025 | MDGL | $0 | Option Exercise | 50,000 | $N/A | Discretionary |
| Sep 9, 2025 | MDGL | $3.2M | Sale | 7,279 | $445.63 | Discretionary |
| Aug 21, 2025 | MDGL | $453.5K | Sale | 1,131 | $401.00 | Discretionary |
| Aug 21, 2025 | MDGL | $2.6M | Sale | 6,485 | $400.03 | Discretionary |
| Sep 9, 2024 | MDGL | $1.6M | Sale | 6,363 | $243.83 | Discretionary |
| Jan 23, 2024 | MDGL | $0 | Award | 12,250 | $N/A | Discretionary |
| Sep 11, 2023 | MDGL | $0 | Award | 50,000 | $N/A | Discretionary |
| May 3, 2011 | AVNR | $0 | Award | 20,000 | $N/A | Discretionary |