Skip to contentPorteous William — SPIRE CORP insider: 23 transactions · InsiderLensPorteous William
- Director at SPIRE CORP · on record since Apr 3, 2026
Insider trading activity of Porteous William
- Transactions on record
- 23
- since Nov 12, 2021
- Open-market buys
- 0
- Open-market sells
- 0
- Companies traded
- 1
- last filing Jun 1, 2026
Figures computed from official regulatory filings — methodology.
Companies where Porteous William has traded
Track record of Porteous William
Insufficient history for a statistical track record (fewer than 5 open-market buys).
Transaction history of Porteous William
Co-insiders of Porteous William
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Dufresne ChristianSPIRE CORP
| Company | Filed | Type | Qty | Price | Value · USD | Src |
|---|
| Jun 1, 2026 | Award | 7,261 | 0.00 USD | $0 | SEC |
| Apr 3, 2026 | Award | 1,896 | 13.38 USD | $25.4K | SEC |
| Jan 5, 2026 | Award | 3,249 | 7.81 USD | $25.4K | SEC |
| Oct 2, 2025 | Award | 2,136 | 11.29 USD | $24.1K | SEC |
| Jul 2, 2025 | Award | 2,065 | 11.30 USD | $23.3K | SEC |
| Jun 9, 2025 | Award | 15,909 | 0.00 USD | $0 | SEC |
| Apr 3, 2025 | Award | 2,880 | 7.94 USD | $22.9K | SEC |
| Jan 6, 2025 | Award | 1,578 | 14.49 USD | $22.9K | SEC |
| Oct 3, 2024 | Award | 2,289 | 9.99 USD | $22.9K | SEC |
| Jul 3, 2024 | Award | 2,216 | 10.32 USD | $22.9K | SEC |
| Jun 7, 2024 | Award | 17,207 | 0.00 USD | $0 | SEC |
| Apr 3, 2024 | Award | 1,971 | 11.60 USD | $22.9K | SEC |
| Jan 4, 2024 | Award | 2,955 | 7.74 USD | $22.9K | SEC |
| Oct 4, 2023 | Award | 4,877 | 4.69 USD | $22.9K | SEC |
| Jul 6, 2023 | Award | 24,461 | 0.55 USD | $13.5K | SEC |
| Jun 16, 2023 | Award | 260,804 | 0.00 USD | $0 | SEC |
| Apr 5, 2023 | Award | 17,534 | 0.64 USD | $11.2K | SEC |
| Jan 24, 2023 | Award | 10,227 | 1.10 USD | $11.2K | SEC |
| Jan 5, 2023 | Award | 11,252 | 0.00 USD | $0 | SEC |
| Sep 2, 2022 | Award | 100,574 | 0.00 USD | $0 | SEC |
| Sep 2, 2022 | Award | 5,514 | 0.00 USD | $0 | SEC |
| Sep 2, 2022 | Award | 9,072 | 0.00 USD | $0 | SEC |
| Nov 12, 2021 | Award | 32,710 | 0.00 USD | $0 | SEC |