Summary
Updated Aug 31, 2026
Heidi Miller is Director of Waystar Holding Corp. (WAY). 6 SEC Form 4 filings on record going back to 2024, most recently on 3 June 2026. Most recent open-market trade: bought $189K of WAY on 3 March 2026. Lifetime open-market purchases: $189K. Lifetime open-market sales: $6.03M.
Recent Transactions
5Every recent SEC Form 4 transaction Heidi Miller has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Heidi Miller go back to 2024: 6 primary Form 4 filings, an average of 2.0 per year. The typical open-market purchase is $189K (1 buy totaling $189K). The largest single buy on record is $189K of WAY in 2026. Sales side: 2 recorded sales totaling $6.03M, so the filing history runs sell-heavy by dollar value. 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 Heidi Miller 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.
- Luxco S.A R.L. Derby - $304.51M of WAY open-market activity in the last 12 months
- CANADA PENSION PLAN INVESTMENT BOARD - $232.86M of WAY open-market activity in the last 12 months
- Paul G. Moskowitz - $168.41M of WAY open-market activity in the last 12 months
- BAIN CAPITAL INVESTORS LLC - $168.41M of WAY open-market activity in the last 12 months
- Matthew J. Hawkins - $4.64M of WAY open-market activity in the last 12 months
- T. Craig Bridge - $3.41M of WAY 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 Heidi Miller?
Heidi Miller is a corporate insider, tracked as Director of Waystar Holding Corp. (WAY). InsiderAlpha holds 6 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 Heidi Miller submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has Heidi Miller been buying or selling stock?
Recorded transactions: 1 open-market purchase ($189K) and 2 open-market sales ($6.03M) across all tracked filings.
Where can I see all of Heidi Miller'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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