TNON up 21.8% on Sep 9 2026 with no filing that explains it
TNON+21.8%on Wed Sep 9 2026
Tenon Medical, Inc. Common Stock was up 21.8% on the day at $4.53, ranked #1 on 945× its usual five-minute volume, when TapeRank recorded this spike at 08:41 ET during the pre-market session.
WHAT THE ROW LOOKED LIKE
LAST4.53
DAY▲ 21.8%
5 MIN▲ 9.52%
5M RVOL945×
5M $VOL$7.1M
FLOAT*667K
RANK#1
SESSIONPRE-MARKET
* FLOAT IS SHARES OUTSTANDING; TRUE FREE FLOAT IS NOT AVAILABLE
AI VERDICT
UNEXPLAINEDCONFIDENCE4/5
TNON is up over 16% on the day and surged another 30% in the last five minutes on volume 153 times normal, against an extremely thin float of roughly 667,000 shares. The only filing available is a Form 4 insider transaction, which does not constitute a disclosed catalyst capable of explaining a move of this magnitude.
WHYA routine Form 4 insider filing carries essentially no information content, yet the stock is moving 30% in five minutes on a tiny float, indicating the move is being driven by order flow and float scarcity rather than news.
ANALYZED 08:35 ET · 6 MIN AGO · ANTHROPIC/CLAUDE-SONNET-5
FILINGS · 24H BEFORE THE MOVE
- TUE 13:27 ET4 — PRIMARY DOCUMENTSEC 4
SESSION LEVELS AT CAPTURE
VWAP4.10
HOD4.57
LOD3.18
OR HIGH—
OR LOW—
PREV CLOSE3.72
PM HIGH4.57
PM LOW3.20
GAP▼ 3.76%
— MEANS THE LEVEL DID NOT EXIST YET AT THAT INSTANT, NOT ZERO