Summary
Updated Aug 30, 2026
C. Ann Merrifield files SEC Form 4 reports at Lyra Therapeutics, Inc. (LYRA). 1 SEC Form 4 filing on record, dated 14 May 2025.
Trading Pattern
InsiderAlpha's records for C. Ann Merrifield go back to 2025: 1 primary Form 4 filing, an average of 0.5 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 C. Ann Merrifield 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.
- PERCEPTIVE ADVISORS LLC - $527K of LYRA open-market activity in the last 12 months
- Maria Palasis - $6K of LYRA open-market activity in the last 12 months
- Jason Cavalier - $3K of LYRA 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 C. Ann Merrifield?
C. Ann Merrifield is a corporate insider of Lyra Therapeutics, Inc. (LYRA). InsiderAlpha holds 1 primary Form 4 filing for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did C. Ann Merrifield last file a Form 4?
The only primary Form 4 on record is dated 14 May 2025.
Where can I see all of C. Ann Merrifield'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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