PLATZER ERICH — SEC Form 4 Insider Trading Activity

Summary

Updated Jul 16, 2026

PLATZER ERICH has filed 1 SEC Form 4 filing across 1 company in the last 90 days.

Profile

Erich Platzer is a corporate professional whose name appears in association with Aptose Biosciences Inc. in SEC filings dated around July 1, 2026. Public biographical information on Platzer is not readily available, and there is no widely known public profile. Based on the SEC filing context, he is connected to Aptose Biosciences—likely as a director or executive—though the exact role and background are not definitively documented in accessible sources.

Board memberships

• Aptose Biosciences Inc.

Awards & honors

• Listed in Aptose Biosciences SEC filings around July 2026

Recent Transactions

Companies — Last 90 Days

• Aptose Biosciences Inc. (APTO) — 1 filings, last 2026-07-01

Frequently Asked Questions

Who is PLATZER ERICH?

Erich Platzer is a corporate professional whose name appears in association with Aptose Biosciences Inc. in SEC filings dated around July 1, 2026. Public biographical information on Platzer is not readily available, and there is no widely known public profile. Based on the SEC filing context, he is connected to Aptose Biosciences—likely as a director or executive—though the exa…

How many SEC Form 4 filings has PLATZER ERICH submitted recently?

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

Where can I see all of PLATZER ERICH'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.

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