William Porteous

CIK 1856453 · last filed 2026-06-01

"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

$6.85M

Companies

2

Total Filings

21

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 375,574 $18.23 $6.85M $0 19 2026-06-01
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

21 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
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
2022-09-02 Spire Global, Inc. (SPIR.WS) Delisted Grant (A) +115,160 $0 EDGAR
Showing 1120 of 21
Page 2 of 3
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.