William S. Rosenstadt serves as Executive at Q BioMed Inc., where they oversee executive responsibilities. Since joining the company, William S. Rosenstadt has executed 41 insider transactions totaling $512.2K, demonstrating a bearish approach to their equity position. Their most recent transaction on Nov 13, 2025 involved purchasing 197,250 shares valued at $0.
| DATE | TICKER | VALUE | TYPE | SHARES | PRICE | 10b5-1 |
|---|---|---|---|---|---|---|
| Nov 13, 2025 | BPAC | $0 | Purchase | 197,250 | $N/A | Discretionary |
| May 26, 2022 | QBIO] | $0 | Award | 250,000 |
William S. Rosenstadt currently holds 1,634,750 shares of Q BioMed Inc. (QBIO), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, William S. Rosenstadt has been a net seller of QBIO stock. They have purchased $0 and sold $512.2K worth of shares.
William S. Rosenstadt's most recent insider trade was on Nov 13, 2025, when they purchased 197,250 shares at $0.00 per share.
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| $25000.00 |
| Discretionary |
| Feb 1, 2021 | QBIO | $0 | Award | 35,000 | $N/A | Discretionary |
| Oct 16, 2019 | QBIO | $0 | Award | 115,761 | $N/A | Discretionary |
| Mar 30, 2017 | QBIO | $38.0K | Sale | 5,000 | $7.60 | Discretionary |
| Mar 29, 2017 | QBIO | $23.3K | Sale | 4,400 | $5.29 | Discretionary |
| Mar 28, 2017 | QBIO | $25.4K | Sale | 5,000 | $5.09 | Discretionary |
| Mar 28, 2017 | QBIO | $25.4K | Sale | 5,000 | $5.09 | Discretionary |
| Mar 27, 2017 | QBIO | $23.6K | Sale | 5,000 | $4.72 | Discretionary |
| Mar 27, 2017 | QBIO | $23.6K | Sale | 5,000 | $4.72 | Discretionary |
| Mar 24, 2017 | QBIO | $16.9K | Sale | 3,700 | $4.56 | Discretionary |
| Mar 24, 2017 | QBIO | $16.9K | Sale | 3,700 | $4.56 | Discretionary |
| Mar 23, 2017 | QBIO | $23.6K | Sale | 5,000 | $4.71 | Discretionary |
| Mar 23, 2017 | QBIO | $23.6K | Sale | 5,000 | $4.71 | Discretionary |
| Mar 22, 2017 | QBIO | $19.4K | Sale | 5,000 | $3.87 | Discretionary |
| Mar 22, 2017 | QBIO | $19.4K | Sale | 5,000 | $3.87 | Discretionary |
| Mar 21, 2017 | QBIO | $7.5K | Sale | 2,200 | $3.40 | Discretionary |
| Mar 21, 2017 | QBIO | $7.5K | Sale | 2,200 | $3.40 | Discretionary |
| Mar 17, 2017 | QBIO | $6.4K | Sale | 1,900 | $3.39 | Discretionary |
| Mar 17, 2017 | QBIO | $6.4K | Sale | 1,900 | $3.39 | Discretionary |
| Mar 16, 2017 | QBIO | $290 | Sale | 100 | $2.90 | Discretionary |
| Mar 16, 2017 | QBIO | $290 | Sale | 100 | $2.90 | Discretionary |
| Mar 15, 2017 | QBIO | $3.9K | Sale | 1,200 | $3.25 | Discretionary |
| Mar 15, 2017 | QBIO | $3.9K | Sale | 1,200 | $3.25 | Discretionary |
| Mar 9, 2017 | QBIO | $13.5K | Sale | 3,800 | $3.56 | Discretionary |
| Mar 9, 2017 | QBIO | $13.5K | Sale | 3,800 | $3.56 | Discretionary |
| Mar 7, 2017 | QBIO | $3.4K | Sale | 900 | $3.73 | Discretionary |
| Mar 7, 2017 | QBIO | $3.4K | Sale | 900 | $3.73 | Discretionary |
| Feb 22, 2017 | QBIO | $16.9K | Sale | 5,000 | $3.37 | Discretionary |
| Feb 22, 2017 | QBIO | $16.9K | Sale | 5,000 | $3.37 | Discretionary |