Insider bought $4.1M of FONR this 14d.
Start with the four driver buckets, then open each section for the source-level detail behind the call.
10% owner shane hilary bought $4.1M
SEC EDGAR Form 4· source
Renaissance Technologies LLC holds $5.9M (13F 2025-12-31)
SEC EDGAR Form 13F· source
Two Sigma Investments LP holds $1.5M (13F 2026-03-31)
SEC EDGAR Form 13F· source
Citadel Advisors LLC holds $383K (13F 2025-12-31)
SEC EDGAR Form 13F· source
FMR LLC (Fidelity) holds $42K (13F 2025-12-31)
SEC EDGAR Form 13F· source
short-volume tape softening: latest 35.4% fell 19.2pp vs 19d avg 54.6%
FINRA short interest· source
Short interest fell -17.3% as of 2026-05-15 (twice-monthly FINRA)
FINRA short interest· source
Pending dilution: 1 S-3/S-8 shelf in trailing 90d
SEC EDGAR dilution filings
We group 1 same-day call into one public result, so wins and misses cannot be cherry-picked. The source links below show what the call was based on.
SEC EDGAR Form 4
INSIDER BUY · 2026-06-04· source
Insider
AlphaYou measures this call against SPY at fixed checkpoints. Wins and misses stay visible on the public record.
Next check: 30D in 2D
When this call was made, we saved the ticker, direction, reasons, target range, price, and time so the record can be checked later.
Call saved on Bitcoin block 952331.