LIEBERMAN WILLIAM K — SEC Form 4 Insider Trading Activity

Summary

Updated Jul 16, 2026

LIEBERMAN WILLIAM K has filed 1 SEC Form 4 filing across 1 company in the last 90 days.

Recent Transactions

DateTickerCompanyCodeSharesPriceValue
2026-05-18APAMPCO PITTSBURGH CORPA — Grant or award7.4K$0.00
2025-05-15APAMPCO PITTSBURGH CORPA — Grant or award12.7K$0.00

Companies — Last 90 Days

Frequently Asked Questions

Who is LIEBERMAN WILLIAM K?

LIEBERMAN WILLIAM K is a corporate insider — currently tracked as Insider of AMPCO PITTSBURGH CORP (AP). InsiderAlpha tracks every SEC Form 4 filing in real time.

How many SEC Form 4 filings has LIEBERMAN WILLIAM K submitted recently?

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

Where can I see all of LIEBERMAN WILLIAM K'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

Open the live LIEBERMAN WILLIAM K profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.