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Stuart Rich bought $51k of TENX

Chief Medical Officer at TENAX THERAPEUTICS, INC.. 5,000 shares at an average of $10.16, traded Dec 8, 2025, filed Dec 10, 2025.

Conviction score
37
Value
$51k
5,000 shares
Holdings after
5,266
+200% from before
From 52-week low
+102%
low $5.10, close $10.30
From 52-week high
0%
high $10.30, as of Dec 8, 2025

Score components

  • Role
    Officer
    +15
  • Trade size
    $51k at market
    +7
  • Relative to holdings
    Holdings up 200%
    +10
  • Price context
    Mid range
    0
  • Cluster
    No other insider buying within 14 days
    0
  • Repeat buying
    2 buys in 90 days
    +5
  • Track record
    Too few past buys to judge (0 with prices)
    0

What happened after comparable buys

Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.

Price around the trade, and since

From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.

TENXOct 9, 2026 · close 1.87
Since filing Dec 10, 2025: -81.0%SPY +14.5% · excess -95.4%

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™

Rows in this filing

Every transaction in Form 4 0001841785-25-000004, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Dec 8, 2025POpen-market purchase
Common Stockindirect: By Stuart Rich Revocable Trust DTD 11/18/1996
+2,500$10.10$25k5,000Dec 10, 2025
Dec 9, 2025POpen-market purchase
Common Stock
+2,500$10.22$26k5,266Dec 10, 2025

Related signals

Other insiders at TENAX THERAPEUTICS, INC. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
50Moderate
TENXbuy 4
TENAX THERAPEUTICS, INC.
Declan Doogan
director
$102k
53,000 shares
+2331%
50Moderate
TENXbuy 4
TENAX THERAPEUTICS, INC.
Christopher Thomas Giordano
CEO
$20k
10,850 shares
+96%
47Moderate
TENXbuy 4
TENAX THERAPEUTICS, INC.
Thomas R Staab II
Chief Financial Officer
$11k
5,675 shares
+57%
55Moderate
TENXbuy 4
TENAX THERAPEUTICS, INC.
ADAR1 Capital Management, LLC
owner
$1.6M
900,000 shares
+16%
50Moderate
TENXbuy 3
TENAX THERAPEUTICS, INC.
ADAR1 Capital Management, LLC
owner
$1.4M
770,333 shares
+16%
39Weak
TENXbuy 2
TENAX THERAPEUTICS, INC.
Stuart Rich
Chief Medical Officer
$46k
5,000 shares
+1880%
48Moderate
TENXbuy 4
TENAX THERAPEUTICS, INC.
Christopher Thomas Giordano
CEO
$20k
2,605 shares
-
38Weak
TENXbuy 3
TENAX THERAPEUTICS, INC.
June Sherie Almenoff
director
$15k
1,993 shares
-
38Weak
TENXbuy 3
TENAX THERAPEUTICS, INC.
June Sherie Almenoff
director
$15k
1,993 shares
-
52Moderate
TENXbuy 3
TENAX THERAPEUTICS, INC.
Thomas McGauley
Interim CFO
$58k
8,000 shares
-

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

Stuart Rich bought $51k of TENX | InsiderTell