Other insiders active in the same stocks
Insiders who reported open-market trades in the last 12 months at the companies John T. Dahldorf 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.
- Thomas Teisseyre - $48K in HYPR purchases and sales in the last 12 months
- Brett Hale - $46K in HYPR purchases and sales in the last 12 months
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Frequently asked questions
Who is John T. Dahldorf?
John T. Dahldorf is a corporate insider of Hyperfine, Inc. (HYPR). InsiderAlpha holds 1 primary Form 4 filing for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
When did John T. Dahldorf last file a Form 4?
The only primary Form 4 on record is dated 22 May 2026.