Kurt A. Gustafson serves as Executive at HALOZYME THERAPEUTICS INC, where they oversee executive responsibilities. Since joining the company, Kurt A. Gustafson has executed 73 insider transactions totaling $1.7M, demonstrating a bearish approach to their equity position. Their most recent transaction on Dec 8, 2025 involved selling 23,922 shares valued at $46.9K.
Kurt A. Gustafson currently holds 252,688 shares of HALOZYME THERAPEUTICS INC (HALO), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Kurt A. Gustafson has been a net seller of HALO stock. They have purchased $75.1K and sold $1.6M worth of shares.
Kurt A. Gustafson's most recent insider trade was on Dec 8, 2025, when they sold 23,922 shares at $1.96 per share.
Get notified when new Form 4 filings are submitted
| $N/A |
| Discretionary |
| Jun 13, 2024 | XNCR | $0 | Award | 5,986 | $N/A | Discretionary |
| Apr 8, 2024 | OABI | $36.6K | Sale | 6,954 | $5.27 | Discretionary |
| Apr 7, 2024 | OABI | $0 | Option Exercise | 13,541 | $N/A | Discretionary |
| Apr 1, 2024 | OABI | $0 | Option Exercise | 23,254 | $N/A | Discretionary |
| Apr 1, 2024 | OABI | $64.7K | Sale | 11,849 | $5.46 | Discretionary |
| Mar 6, 2024 | XNCR | $324.5K | Sale | 14,000 | $23.18 | Discretionary |
| Mar 6, 2024 | XNCR | $160.9K | Option Exercise | 15,000 | $10.73 | Discretionary |
| Dec 7, 2023 | OABI | $78.0K | Payment | 16,081 | $4.85 | Discretionary |
| Dec 7, 2023 | OABI | $0 | Option Exercise | 46,503 | $N/A | Discretionary |
| Jun 20, 2023 | XNCR | $0 | Award | 5,007 | $N/A | Discretionary |
| Apr 7, 2023 | OABI | $0 | Award | 40,625 | $N/A | Discretionary |
| Apr 1, 2023 | OABI | $29.6K | Payment | 8,042 | $3.68 | Discretionary |
| Jan 3, 2023 | OABI | $0 | Award | 139,504 | $N/A | Discretionary |
| Dec 1, 2022 | OABI | $22.6K | Payment | 6,733 | $3.35 | Discretionary |
| Nov 28, 2022 | OABI | $28.1K | Purchase | 10,000 | $2.81 | Discretionary |
| Nov 1, 2022 | OABI | $0 | Award | 160,062 | $N/A | Discretionary |
| Nov 1, 2022 | NONE | $0 | Award | 17,792 | $N/A | Discretionary |
| Nov 1, 2022 | NONE | $0 | Disposition | 17,792 | $N/A | Discretionary |
| Mar 16, 2022 | SPPI | $11.6K | Sale | 16,318 | $0.71 | Discretionary |
| Mar 15, 2022 | SPPI | $14.7K | Sale | 20,653 | $0.71 | Discretionary |
| Feb 24, 2022 | SPPI | $10.2K | Sale | 15,958 | $0.64 | Discretionary |
| Feb 23, 2022 | SPPI | $14.2K | Sale | 20,215 | $0.70 | Discretionary |
| Mar 16, 2021 | SPPI | $60.2K | Sale | 16,318 | $3.69 | Discretionary |
| Mar 15, 2021 | SPPI | $73.9K | Sale | 20,365 | $3.63 | Discretionary |
| Feb 22, 2021 | SPPI | $14.9K | Sale | 4,000 | $3.73 | Discretionary |
| Feb 19, 2021 | SPPI | $17.0K | Sale | 4,672 | $3.64 | Discretionary |
| Feb 18, 2021 | SPPI | $0 | Award | 119,579 | $N/A | Discretionary |
| Jan 20, 2021 | SPPI | $8.4K | Sale | 1,944 | $4.31 | Discretionary |