Christopher Thomas Giordano, CEO at Tenax Therapeutics, bought TENX on Sep 15, 2026

Data as of Oct 16

▲ BUY$8.8K4,850 shares at $1.82Christopher Thomas Giordano CEOTENX Tenax Therapeutics, Inc.

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Traded: Sep 15, 2026
Disclosed: Sep 15, 2026
Filed: The same day

Form 4s are due within two business days.

Official filing (SEC Form 4) ↗

The price around the disclosure

TENXSimilar stocks (XLV — its sector index fund), rebased to TENX's price on the disclosure day

TENX since disclosure

−25.7%

Similar stocks (XLV) since disclosure

+5.4%

XLV — its sector index fund

Change in closing price from Sep 15, 2026 (the first trading day on or after disclosure) to Oct 16, 2026. Dividends excluded. Not a return anyone earned.

Our take

⚪ 3+ insiders buy after a 30% drop — fired on this trade
Not enough evidence · In past tests: 8.0 percentage points better than similar stocks over 3 months · 2,952 tries

What this rule is doing with TENX right now

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Other trades in the same filing

▲ BUYChristopher Thomas Giordano CEOTENX Tenax Therapeutics, Inc.$11.3Kdisclosed Sep 15 · filed 4 days after the trade 1 rule fired

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