Porteous William D. — SEC Form 4 Insider Trading Activity

Summary

Updated Jul 16, 2026

Porteous William D. has filed 1 SEC Form 4 filing across 1 company in the last 90 days — selling. Lifetime open-market sales: $6K.

Profile

Porteous William D.
RoleDirector
Notability20/100

Board memberships

Recent Transactions

DateTickerCompanyCodeSharesPriceValue
2026-06-30BKSYBlackSky Technology Inc.A — Grant or award805$0.00
2026-04-01BKSYBlackSky Technology Inc.A — Grant or award894$0.00
2025-09-30BKSYBlackSky Technology Inc.A — Grant or award1.1K$0.00
2025-09-11BKSYBlackSky Technology Inc.A — Grant or award8.6K$0.00
2025-06-30BKSYBlackSky Technology Inc.A — Grant or award1.1K$0.00
2024-12-31BKSYBlackSky Technology Inc.A — Grant or award2.1K$0.00
2024-12-16BKSYBlackSky Technology Inc.S — Open-market sale570$10.65$6K
2024-10-02BKSYBlackSky Technology Inc.A — Grant or award4.7K$0.00

Companies — Last 90 Days

Frequently Asked Questions

Who is Porteous William D.?

Porteous William D. is a corporate insider — currently tracked as Director of BlackSky Technology Inc. (BKSY). InsiderAlpha tracks every SEC Form 4 filing in real time.

How many SEC Form 4 filings has Porteous William D. submitted recently?

1 primary Form 4 filings in the last 90 days, covering 1 company.

Has Porteous William D. been buying or selling stock?

Recorded transactions: 0 open-market purchases () and 1 open-market sales ($6K) across all tracked filings.

Where can I see all of Porteous William D.'s SEC filings?

All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.

Learn More

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