Summary
Updated Aug 31, 2026
Christopher Koeppen is EVP of Aerospace Defense of COHERENT CORP. (COHR). 5 SEC Form 4 filings on record going back to 2024, most recently on 16 July 2025. Most recent open-market trade: sold $310K of COHR on 16 July 2025. Lifetime open-market sales: $2.46M.
Recent Transactions
17Every recent SEC Form 4 transaction Christopher Koeppen has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Christopher Koeppen go back to 2024: 5 primary Form 4 filings, an average of 1.7 per year. 14 recorded transactions carry a Rule 10b5-1 flag, meaning they were pre-scheduled under a written trading plan rather than discretionary.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Christopher Koeppen 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.
- BAIN CAPITAL INVESTORS LLC - $1.08B of COHR open-market activity in the last 12 months
- Giovanni Barbarossa - $18.08M of COHR open-market activity in the last 12 months
- Joseph J. Corasanti - $4.42M of COHR open-market activity in the last 12 months
- Sherri R. Luther - $3.60M of COHR open-market activity in the last 12 months
- Howard H. Xia - $2.25M of COHR open-market activity in the last 12 months
- Stephen A. Skaggs - $1.70M of COHR 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 Christopher Koeppen?
Christopher Koeppen is a corporate insider, tracked as EVP of Aerospace Defense of COHERENT CORP. (COHR). InsiderAlpha holds 5 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Christopher Koeppen last file a Form 4?
The most recent primary Form 4 on record is dated 16 July 2025, one of 5 filings going back to 2024.
Has Christopher Koeppen been buying or selling stock?
Recorded transactions: 0 open-market purchases and 15 open-market sales ($2.46M) across all tracked filings.
Where can I see all of Christopher Koeppen'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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