William Porteous
CIK 1856453 · last filed 2026-07-17
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
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Disclosed Exposure
$4.53M
Companies
2
Total Filings
22
Lifetime Open-Market Net
$0
Holdings By Company
Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| SPIR | Director | 377,090 | $12.02 | $4.53M | $0 | 20 | 2026-07-17 |
| Spire Global, Inc. (SPIR.WS) Delisted | Director | 2,123,366 | $0.12 | $255.1K | $0 | 2 | 2022-09-02 |
Recent Filings · Page 2 of 3
22 filingsInsider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2024-07-03 | SPIR | Grant (A) | +2,216 | $22.9K | EDGAR |
| 2024-06-07 | SPIR | Grant (A) | +17,207 | $0 | EDGAR |
| 2024-04-03 | SPIR | Grant (A) | +1,971 | $22.9K | EDGAR |
| 2024-01-04 | SPIR | Grant (A) | +2,955 | $22.9K | EDGAR |
| 2023-10-04 | SPIR | Grant (A) | +4,877 | $22.9K | EDGAR |
| 2023-07-06 | SPIR | Grant (A) | +24,461 | $13.5K | EDGAR |
| 2023-06-16 | SPIR | Grant (A) | +260,804 | $0 | EDGAR |
| 2023-04-05 | SPIR | Grant (A) | +17,534 | $11.2K | EDGAR |
| 2023-01-24 | SPIR | Grant (A) | +10,227 | $11.2K | EDGAR |
| 2023-01-05 | SPIR | Grant (A) | +11,252 | $0 | EDGAR |
Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.