William Porteous
Insider
First SEC filing: Aug. 17, 2021 · Latest: June 1, 2026
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net: $0
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
No open-market trades on record; showing all filings.
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Oct. 1, 2026 | SPIR | A | 2,818 | $10.97 | $30,913 | 131,837 Direct | +2.18% | Acquired | 0.1% (price as of 2026-10-06) |
| July 1, 2026 | SPIR | A | 1,516 | $18.38 | $27,864 | 129,019 Direct | +1.19% | Acquired | -40.3% (price as of 2026-10-06) |
| May 28, 2026 | SPIR | A | 7,261 | · | · | 127,503 Direct | +6.04% | Acquired | (price as of 2026-10-06) |
| April 1, 2026 | SPIR | A | 1,896 | $13.38 | $25,368 | 120,242 Direct | +1.60% | Acquired | -17.9% (price as of 2026-10-06) |
| Jan. 2, 2026 | SPIR | A | 3,249 | $7.81 | $25,375 | 118,346 Direct | +2.82% | Acquired | 40.6% (price as of 2026-10-06) |
| Oct. 1, 2025 | SPIR | A | 2,136 | $11.29 | $24,115 | 115,097 Direct | +1.89% | Acquired | -2.7% (price as of 2026-10-06) |
| July 1, 2025 | SPIR | A | 2,065 | $11.30 | $23,334 | 112,961 Direct | +1.86% | Acquired | -2.8% (price as of 2026-10-06) |
| June 5, 2025 | SPIR | A | 15,909 | · | · | 110,896 Direct | +16.75% | Acquired | (price as of 2026-10-06) |
| April 1, 2025 | SPIR | A | 2,880 | $7.94 | $22,867 | 94,987 Direct | +3.13% | Acquired | 38.3% (price as of 2026-10-06) |
| Jan. 2, 2025 | SPIR | A | 1,578 | $14.49 | $22,865 | 92,107 Direct | +1.74% | Acquired | -24.2% (price as of 2026-10-06) |
| Oct. 1, 2024 | SPIR | A | 2,289 | $9.99 | $22,867 | 90,529 Direct | +2.59% | Acquired | 9.9% (price as of 2026-10-06) |
| July 1, 2024 | SPIR | A | 2,216 | $10.32 | $22,869 | 88,240 Direct | +2.58% | Acquired | 6.4% (price as of 2026-10-06) |
| June 5, 2024 | SPIR | A | 17,207 | · | · | 86,024 Direct | +25.00% | Acquired | (price as of 2026-10-06) |
| April 1, 2024 | SPIR | A | 1,971 | $11.60 | $22,864 | 68,817 Direct | +2.95% | Acquired | -5.3% (price as of 2026-10-06) |
| Jan. 2, 2024 | SPIR | A | 2,955 | $7.74 | $22,872 | 66,850 Direct | +4.62% | Acquired | 41.9% (price as of 2026-10-06) |
| Oct. 2, 2023 | SPIR | A | 4,877 | $4.69 | $22,873 | 63,895 Direct | +8.26% | Acquired | 134.1% (price as of 2026-10-06) |
| July 3, 2023 | SPIR | A | 24,461 | $0.55 | $13,454 | 472,148 Direct | +5.46% | Acquired | 149.5% (price as of 2026-10-06) |
| June 14, 2023 | SPIR | A | 260,804 | · | · | 447,687 Direct | +139.55% | Acquired | (price as of 2026-10-06) |
| April 3, 2023 | SPIR | A | 17,534 | $0.64 | $11,222 | 186,883 Direct | +10.35% | Acquired | 114.5% (price as of 2026-10-06) |
| Jan. 20, 2023 | SPIR | A | 10,227 | $1.10 | $11,250 | 169,349 Direct | +6.43% | Acquired | 24.8% (price as of 2026-10-06) |
| Jan. 3, 2023 | SPIR | A | 11,252 | · | · | 159,122 Direct | +7.61% | Acquired | (price as of 2026-10-06) |
| July 1, 2022 | SPIR | A | 9,072 | · | · | 147,870 Direct | +6.54% | Acquired | (price as of 2026-10-06) |
| June 2, 2022 | SPIR | A | 100,574 | · | · | 138,798 Direct | +263.12% | Acquired | (price as of 2026-10-06) |
| April 1, 2022 | SPIR | A | 5,514 | · | · | 38,224 Direct | +16.86% | Acquired | (price as of 2026-10-06) |
| Nov. 9, 2021 | SPIR | A | 32,710 | · | · | 32,710 Direct | · | Acquired | (price as of 2026-10-06) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Initial ownership (Form 3) 2 holdings
Securities held when first becoming an insider, per SEC Form 3.