Summary
Updated Aug 31, 2026
Ronald Harold Wilfred Cooper is Director of C4 Therapeutics, Inc. (CCCC). 4 SEC Form 4 filings on record going back to 2024, most recently on 26 June 2026. Most recent open-market trade: bought $57K of ENGN on 1 October 2024. Lifetime open-market purchases: $57K.
Recent Transactions
2Every recent SEC Form 4 transaction Ronald Harold Wilfred Cooper has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Ronald Harold Wilfred Cooper go back to 2024: 4 primary Form 4 filings, an average of 1.3 per year. The typical open-market purchase is $57K (1 buy totaling $57K). The largest single buy on record is $57K of ENGN in 2024. 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 Ronald Harold Wilfred Cooper 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.
- Leonard Reyno - $22K of CCCC 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 Ronald Harold Wilfred Cooper?
Ronald Harold Wilfred Cooper is a corporate insider, tracked as Director of C4 Therapeutics, Inc. (CCCC). InsiderAlpha holds 4 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Ronald Harold Wilfred Cooper submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has Ronald Harold Wilfred Cooper been buying or selling stock?
Recorded transactions: 1 open-market purchase ($57K) and 0 open-market sales across all tracked filings.
Where can I see all of Ronald Harold Wilfred Cooper'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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