William D. Porteous
Insider
First SEC filing: Oct. 21, 2022 · Latest: Oct. 21, 2022
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
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Sept. 30, 2026 | BKSY | A | 1,055 | · | · | 88,378 Direct | +1.21% | Acquired | (price as of 2026-10-06) |
| Sept. 11, 2026 | BKSY | A | 8,733 | · | · | 87,323 Direct | +11.11% | Acquired | (price as of 2026-10-06) |
| June 30, 2026 | BKSY | A | 805 | · | · | 78,590 Direct | +1.03% | Acquired | (price as of 2026-10-06) |
| March 31, 2026 | BKSY | A | 894 | · | · | 77,785 Direct | +1.16% | Acquired | (price as of 2026-10-06) |
| Dec. 31, 2025 | BKSY | A | 1,200 | · | · | 76,891 Direct | +1.59% | Acquired | (price as of 2026-10-06) |
| Dec. 10, 2025 | BKSY | A | 1,500 | · | · | 75,691 Direct | +2.02% | Acquired | (price as of 2026-10-06) |
| Sept. 30, 2025 | BKSY | A | 1,116 | · | · | 74,191 Direct | +1.53% | Acquired | (price as of 2026-10-06) |
| Sept. 11, 2025 | BKSY | A | 8,625 | · | · | 73,075 Direct | +13.38% | Acquired | (price as of 2026-10-06) |
| June 30, 2025 | BKSY | A | 1,093 | · | · | 64,450 Direct | +1.73% | Acquired | (price as of 2026-10-06) |
| March 31, 2025 | BKSY | A | 2,910 | · | · | 63,357 Direct | +4.81% | Acquired | (price as of 2026-10-06) |
| Dec. 31, 2024 | BKSY | A | 2,085 | · | · | 60,447 Direct | +3.57% | Acquired | (price as of 2026-10-06) |
| Dec. 12, 2024 | BKSY | S | 570 | $10.65 | $6,070 | 58,362 Direct | -0.97% | Disposed | 111.2% (price as of 2026-10-06) |
| Sept. 30, 2024 | BKSY | A | 4,746 | · | · | 58,932 Direct | +8.76% | Acquired | (price as of 2026-10-06) |
| Sept. 4, 2024 | BKSY | A | 135,135 | · | · | 433,526 Direct | +45.29% | Acquired | (price as of 2026-10-06) |
| June 30, 2024 | BKSY | A | 21,028 | · | · | 298,391 Direct | +7.58% | Acquired | (price as of 2026-10-06) |
| March 31, 2024 | BKSY | A | 16,544 | · | · | 277,363 Direct | +6.34% | Acquired | (price as of 2026-10-06) |
| Dec. 31, 2023 | BKSY | A | 16,071 | · | · | 260,819 Direct | +6.57% | Acquired | (price as of 2026-10-06) |
| Sept. 30, 2023 | BKSY | A | 19,230 | · | · | 244,748 Direct | +8.53% | Acquired | (price as of 2026-10-06) |
| Sept. 8, 2023 | BKSY | A | 118,110 | · | · | 225,518 Direct | +109.96% | Acquired | (price as of 2026-10-06) |
| Sept. 9, 2022 | BKSY | A | 69,767 | · | · | 107,408 Direct | +185.35% | Acquired | (price as of 2026-10-06) |
| Dec. 21, 2021 | BKSY | A | 37,641 | · | · | 37,641 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.