William Kurtz serves as Executive at REDBACK NETWORKS INC, where they oversee executive responsibilities. Since joining the company, William Kurtz has executed 70 insider transactions totaling $2.4M, demonstrating a bearish approach to their equity position. Their most recent transaction on Nov 26, 2025 involved exercising options for 8,980 shares valued at $0.
William Kurtz currently holds 8,980 shares of REDBACK NETWORKS INC (RBAK), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, William Kurtz has been a net seller of RBAK stock. They have purchased $174.5K and sold $2.2M worth of shares.
William Kurtz's most recent insider trade was on Nov 26, 2025, when they sold 8,980 shares at $0.00 per share.
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| $N/A |
| Discretionary |
| Nov 26, 2025 | VRNT | $0 | Disposition | 20,193 | $N/A | Discretionary |
| Aug 13, 2025 | ATER | $0 | Award | 78,034 | $N/A | Discretionary |
| Aug 23, 2024 | ATER | $25.7K | Sale | 8,547 | $3.01 | Discretionary |
| Aug 16, 2024 | ATER | $0 | Award | 33,693 | $N/A | Discretionary |
| Aug 15, 2024 | ATER | $1.4K | Sale | 453 | $3.15 | Discretionary |
| Jun 7, 2024 | VRNT | $11.1K | Sale | 304 | $36.49 | Discretionary |
| Jun 7, 2024 | VRNT | $66.0K | Sale | 1,806 | $36.55 | Discretionary |
| Apr 22, 2024 | VRNT | $0 | Award | 6,859 | $N/A | Discretionary |
| Dec 18, 2023 | VRNT | $68.3K | Sale | 2,500 | $27.32 | Discretionary |
| Dec 15, 2023 | VRNT | $46.2K | Sale | 1,678 | $27.52 | Discretionary |
| Dec 15, 2023 | VRNT | $22.6K | Sale | 822 | $27.52 | Discretionary |
| Nov 16, 2023 | ATER | $2.3K | Sale | 6,829 | $0.34 | Discretionary |
| Nov 15, 2023 | ATER | $33.0K | Sale | 96,914 | $0.34 | Discretionary |
| Sep 13, 2023 | ATER | $0 | Award | 270,270 | $N/A | Discretionary |
| Jun 30, 2023 | VRNT | $63.6K | Sale | 1,800 | $35.35 | Discretionary |
| Apr 20, 2023 | VRNT | $0 | Award | 5,274 | $N/A | Discretionary |
| Dec 27, 2022 | VRNT | $142.6K | Sale | 4,000 | $35.66 | Discretionary |
| Jul 26, 2022 | ATER | $0 | Award | 42,195 | $N/A | Discretionary |
| Apr 25, 2022 | VRNT | $0 | Award | 3,606 | $N/A | Discretionary |
| Sep 30, 2021 | ATER | $0 | Award | 8,449 | $N/A | Discretionary |
| Sep 30, 2021 | ATER | $0 | Award | 1,236 | $N/A | Discretionary |
| May 20, 2021 | ATER | $24.4K | Purchase | 1,450 | $16.80 | Discretionary |
| Apr 20, 2021 | VRNT | $0 | Award | 4,178 | $N/A | Discretionary |
| Dec 14, 2020 | VRNT | $362.7K | Sale | 6,000 | $60.45 | Discretionary |
| Sep 30, 2020 | MWK | $0 | Award | 3,100 | $N/A | Discretionary |
| Aug 26, 2020 | VRNT | $0 | Award | 4,326 | $N/A | Discretionary |
| Jun 11, 2020 | MWK | $33.4K | Purchase | 6,888 | $4.85 | Discretionary |
| Jun 10, 2020 | MWK | $10.9K | Purchase | 2,100 | $5.17 | Discretionary |