Porteous William D. — SEC Form 4 filings
SEC reporting owner CIK 1865965. 15 Form 4 filings on record with FilingPulse; latest filed 2026-09-14.
Transaction summary — filings shown
Covers all 15 filings on record, filed 2024-04-01 to 2026-09-14. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): 1 leg across 1 filing — 570 shares, $6,070 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 14.
- Largest priced transaction: sale of 570 shares @ $10.65 ($6,070) in BlackSky Technology Inc., filed 2024-12-16.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| BlackSky Technology Inc. (BKSY) | Director | 15 | — | 1 leg · 570 sh · $6,070 | 14 |
Form 4 filings — Porteous William D.
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-09-14 | 4 | BlackSky Technology Inc. (BKSY) | Grant/award (A): 8,733 @ $0 | EDGAR |
| 2026-06-30 | 4 | BlackSky Technology Inc. (BKSY) | Grant/award (A): 805 @ $0 | EDGAR |
| 2026-04-01 | 4 | BlackSky Technology Inc. (BKSY) | Grant/award (A): 894 @ $0 | EDGAR |
| 2026-01-02 | 4 | BlackSky Technology Inc. (BKSY) | Grant/award (A): 1,200 @ $0 | EDGAR |
| 2025-12-10 | 4 | BlackSky Technology Inc. (BKSY) | Grant/award (A): 1,500 @ $0 | EDGAR |
| 2025-10-01 | 4 | BlackSky Technology Inc. (BKSY) | Grant/award (A): 1,116 @ $0 | EDGAR |
| 2025-09-11 | 4 | BlackSky Technology Inc. (BKSY) | Grant/award (A): 8,625 @ $0 | EDGAR |
| 2025-07-01 | 4 | BlackSky Technology Inc. (BKSY) | Grant/award (A): 1,093 @ $0 | EDGAR |
| 2025-04-01 | 4 | BlackSky Technology Inc. (BKSY) | Grant/award (A): 2,910 @ $0 | EDGAR |
| 2024-12-31 | 4 | BlackSky Technology Inc. (BKSY) | Grant/award (A): 2,085 @ $0 | EDGAR |
| 2024-12-16 | 4 | BlackSky Technology Inc. (BKSY) | Sale (S): 570 @ $10.65 | EDGAR |
| 2024-10-02 | 4 | BlackSky Technology Inc. (BKSY) | Grant/award (A): 4,746 @ $0 | EDGAR |
| 2024-09-06 | 4 | BlackSky Technology Inc. (BKSY) | Grant/award (A): 135,135 @ $0 | EDGAR |
| 2024-07-02 | 4 | BlackSky Technology Inc. (BKSY) | Grant/award (A): 21,028 @ $0 | EDGAR |
| 2024-04-01 | 4 | BlackSky Technology Inc. (BKSY) | Grant/award (A): 16,544 @ $0 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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