Summary
Updated Aug 31, 2026
Walter M. Fiederowicz files SEC Form 4 reports at PHOTRONICS INC (PLAB). 5 SEC Form 4 filings on record going back to 2024, most recently on 15 April 2025. Most recent open-market trade: sold $89K of PLAB on 15 April 2025. Lifetime open-market sales: $692K.
Recent Transactions
7Every recent SEC Form 4 transaction Walter M. Fiederowicz has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Walter M. Fiederowicz go back to 2024: 5 primary Form 4 filings, an average of 1.7 per year. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Walter M. Fiederowicz files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Kang Jyh Lee - $8.14M of PLAB open-market activity in the last 12 months
- George Macricostas - $5.20M of PLAB open-market activity in the last 12 months
- Constantine S. Macricostas - $2.27M of PLAB open-market activity in the last 12 months
- Hsueh-Chun Wang - $2.25M of PLAB open-market activity in the last 12 months
- Eric Rivera - $1.87M of PLAB open-market activity in the last 12 months
- Mary Paladino - $1.42M of PLAB open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Walter M. Fiederowicz?
Walter M. Fiederowicz is a corporate insider of PHOTRONICS INC (PLAB). InsiderAlpha holds 5 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Walter M. Fiederowicz last file a Form 4?
The most recent primary Form 4 on record is dated 15 April 2025, one of 5 filings going back to 2024.
Has Walter M. Fiederowicz been buying or selling stock?
Recorded transactions: 0 open-market purchases and 5 open-market sales ($692K) across all tracked filings.
Where can I see all of Walter M. Fiederowicz'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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