Tenax Therapeutics (TENX) Stock: Why It's Up Today
Updated Oct 19, 2026, 4:00 PM ET · closing price
- Closed at $1.52, +11.76% vs the prior close of $1.36.
- Volume 2.58M shares, 0.4x its 50-day average (light).
- No new SEC filings since the prior session.
- No new insider buys or sales reported since the prior session.
TENX jumps 11.8% to $1.52. Closed at $1.52, +11.76% vs the prior close of $1.36. Day range $1.41–$1.54, opened at $1.41.
TENX daily analysis — what happened
A plain-English, data-only note for every US trading day (today's note updates every 2 hours while the market is open). Newest first; older days stay archived below.
Oct 19, 2026 — TENX jumps 11.8% to $1.52
- Closed at $1.52, +11.76% vs the prior close of $1.36. Day range $1.41–$1.54, opened at $1.41.
- Volume was 2.58M shares, 0.4x its 50-day average of 6.73M — lighter than usual.
- Price is -17.4% vs its 50-day average ($1.84) and -85.7% vs its 200-day average ($10.61).
- 52-week range $1.31–$19.40; today's close sits at 1% of that range, 92.2% below the 52-week high.
Oct 16, 2026 — TENX slides 9.9% to $1.36, a 52-week low, 5 down days in a row
- Closed at $1.36, -9.93% vs the prior close of $1.51. Day range $1.36–$1.52, opened at $1.50.
- Volume was 1.77M shares, 0.3x its 50-day average of 6.72M — lighter than usual.
- Price is -34.6% vs its 50-day average ($2.08) and -87.2% vs its 200-day average ($10.66).
- 52-week range $1.31–$19.40; today's close sits at 0% of that range, 93.0% below the 52-week high.
- That makes 5 straight losses.
Oct 15, 2026 — TENX dips 1.6% to $1.51, a 1-month low, 4 down days in a row
- Closed at $1.51, -1.63% vs the prior close of $1.53. Day range $1.51–$1.56, opened at $1.55.
- Volume was 2.01M shares, 0.3x its 50-day average of 6.73M — lighter than usual.
- Price is -34.8% vs its 50-day average ($2.32) and -85.9% vs its 200-day average ($10.72).
- 52-week range $1.31–$19.40; today's close sits at 1% of that range, 92.2% below the 52-week high.
- That makes 4 straight losses.
Oct 14, 2026 — TENX slides 4.1% to $1.53, a 1-month low, 3 down days in a row
- Closed at $1.53, -4.06% vs the prior close of $1.60. Day range $1.53–$1.65, opened at $1.60.
- Volume was 1.96M shares, 0.3x its 50-day average of 6.73M — lighter than usual.
- Price is -39.8% vs its 50-day average ($2.55) and -85.7% vs its 200-day average ($10.77).
- 52-week range $1.31–$19.40; today's close sits at 1% of that range, 92.1% below the 52-week high.
- That makes 3 straight losses.
Oct 13, 2026 — TENX slides 12.6% to $1.60, a 1-month low
- Closed at $1.60, -12.57% vs the prior close of $1.83. Day range $1.58–$1.84, opened at $1.84.
- Volume was 7.68M shares, 1.2x its 50-day average of 6.62M.
- Price is -42.7% vs its 50-day average ($2.79) and -85.2% vs its 200-day average ($10.83).
- 52-week range $1.31–$19.40; today's close sits at 2% of that range, 91.8% below the 52-week high.
Oct 12, 2026 — TENX dips 2.1% to $1.83
- Closed at $1.83, -2.14% vs the prior close of $1.87. Day range $1.83–$1.88, opened at $1.88.
- Volume was 789.20K shares, 0.1x its 50-day average of 6.64M — lighter than usual.
- Price is -40.0% vs its 50-day average ($3.05) and -83.2% vs its 200-day average ($10.88).
- 52-week range $1.31–$19.40; today's close sits at 3% of that range, 90.6% below the 52-week high.
Oct 9, 2026 — TENX rises 0.5% to $1.87
- Closed at $1.87, +0.54% vs the prior close of $1.86. Day range $1.80–$1.91, opened at $1.86.
- Volume was 2.34M shares, 0.4x its 50-day average of 6.63M — lighter than usual.
- Price is -43.1% vs its 50-day average ($3.29) and -82.9% vs its 200-day average ($10.93).
- 52-week range $1.31–$19.40; today's close sits at 3% of that range, 90.4% below the 52-week high.
Oct 8, 2026 — TENX dips 2.6% to $1.86, 4 down days in a row
- Closed at $1.86, -2.62% vs the prior close of $1.91. Day range $1.83–$1.91, opened at $1.91.
- Volume was 2.41M shares, 0.4x its 50-day average of 6.62M — lighter than usual.
- Price is -47.6% vs its 50-day average ($3.55) and -83.1% vs its 200-day average ($10.98).
- 52-week range $1.31–$19.40; today's close sits at 3% of that range, 90.4% below the 52-week high.
- That makes 4 straight losses.
- SEC filings that day: 8-K.
Oct 7, 2026 — TENX dips 1.0% to $1.91, 3 down days in a row
- Closed at $1.91, -1.04% vs the prior close of $1.93. Day range $1.89–$1.95, opened at $1.92.
- Volume was 701.50K shares, 0.1x its 50-day average of 6.63M — lighter than usual.
- Price is -49.9% vs its 50-day average ($3.81) and -82.7% vs its 200-day average ($11.04).
- 52-week range $1.31–$19.40; today's close sits at 3% of that range, 90.2% below the 52-week high.
- That makes 3 straight losses.
Oct 6, 2026 — TENX dips 1.5% to $1.93
- Closed at $1.93, -1.53% vs the prior close of $1.96. Day range $1.90–$2.00, opened at $1.96.
- Volume was 1.18M shares, 0.2x its 50-day average of 6.65M — lighter than usual.
- Price is -52.8% vs its 50-day average ($4.09) and -82.6% vs its 200-day average ($11.09).
- 52-week range $1.31–$19.40; today's close sits at 3% of that range, 90.1% below the 52-week high.
Oct 5, 2026 — TENX dips 1.0% to $1.96
- Closed at $1.96, -1.01% vs the prior close of $1.98. Day range $1.88–$1.99, opened at $1.98.
- Volume was 1.47M shares, 0.2x its 50-day average of 6.64M — lighter than usual.
- Price is -55.2% vs its 50-day average ($4.37) and -82.4% vs its 200-day average ($11.14).
- 52-week range $1.31–$19.40; today's close sits at 4% of that range, 89.9% below the 52-week high.
Oct 2, 2026 — TENX rises 2.6% to $1.98, 3 up days in a row
- Closed at $1.98, +2.59% vs the prior close of $1.93. Day range $1.92–$2.00, opened at $1.96.
- Volume was 2.03M shares, 0.3x its 50-day average of 6.63M — lighter than usual.
- Price is -57.2% vs its 50-day average ($4.62) and -82.3% vs its 200-day average ($11.19).
- 52-week range $1.31–$19.40; today's close sits at 4% of that range, 89.8% below the 52-week high.
- That makes 3 straight gains.
TENX bull case vs bear case (from the data)
- Insiders made 25 open-market purchases in the last 12 months.
- Price is -17.4% vs its 50-day average — short-term trend is down.
- Price is -85.7% vs its 200-day average — below the long-term trend line.
- Latest fiscal-year net income: loss of $52.60M.
- Share count up 720.3% in a year (dilution).
- High volatility: average daily move of 3.5% over 20 sessions.
TENX latest news & SEC filings
Every SEC filing by or about TENX in the last 120 days, explained in plain English. Updated daily, with a same-day refresh for new filings.
Oct 15, 2026 · Form SCHEDULE 13G/A — Update to a passive 5%+ stake (13G)
Update to a passive 5%+ stake (13G)
Filed by an outside investor (not the company). It reports a holding of more than 5% of a share class; percentage and holder name are in the filing.
Oct 13, 2026 · Form SCHEDULE 13G/A — Update to a passive 5%+ stake (13G)
Update to a passive 5%+ stake (13G)
Filed by an outside investor (not the company). It reports a holding of more than 5% of a share class; percentage and holder name are in the filing.
Oct 9, 2026 · Form SCHEDULE 13G/A — Update to a passive 5%+ stake (13G)
Update to a passive 5%+ stake (13G)
Filed by an outside investor (not the company). It reports a holding of more than 5% of a share class; percentage and holder name are in the filing.
Oct 8, 2026 · Form 8-K — Major event / current report
Current report — a filing companies must make within 4 business days of a major event
- Item 8.01 — Reported other events the company considers important.
Sep 17, 2026 · Form 4 — Insider trade
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
- Doogan Declan bought 53,000 shares at $1.92 (≈$101.76K) on Sep 16, 2026; now holds 55,274
Open-market purchases (P) and sales (S) are shown in colour; awards, exercises and tax withholding are routine pay-related moves. Many sales are pre-planned under 10b5-1 plans.
Sep 15, 2026 · Form 4 — Insider trade
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
- Giordano Christopher Thomas bought 4,850 shares at $1.82 (≈$8.83K) on Sep 15, 2026
- Giordano Christopher Thomas bought 4,850 shares at $1.82 (≈$8.83K) on Sep 15, 2026
- Giordano Christopher Thomas bought 4,850 shares at $1.82 (≈$8.83K) on Sep 15, 2026
- Giordano Christopher Thomas bought 4,850 shares at $1.82 (≈$8.83K) on Sep 15, 2026
- Giordano Christopher Thomas bought 6,000 shares at $1.88 (≈$11.28K) on Sep 11, 2026
- Giordano Christopher Thomas bought 6,000 shares at $1.88 (≈$11.28K) on Sep 11, 2026
- …plus 2 more transaction lines in the filing.
Open-market purchases (P) and sales (S) are shown in colour; awards, exercises and tax withholding are routine pay-related moves. Many sales are pre-planned under 10b5-1 plans.
Sep 15, 2026 · Form 4 — Insider trade
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
- Staab Thomas R Ii bought 5,675 shares at $1.94 (≈$11.01K) on Sep 11, 2026
- Staab Thomas R Ii bought 5,675 shares at $1.94 (≈$11.01K) on Sep 11, 2026
- Staab Thomas R Ii bought 5,675 shares at $1.94 (≈$11.01K) on Sep 11, 2026
- Staab Thomas R Ii bought 5,675 shares at $1.94 (≈$11.01K) on Sep 11, 2026
Open-market purchases (P) and sales (S) are shown in colour; awards, exercises and tax withholding are routine pay-related moves. Many sales are pre-planned under 10b5-1 plans.
Sep 11, 2026 · Form SCHEDULE 13G/A — Update to a passive 5%+ stake (13G)
Update to a passive 5%+ stake (13G)
Filed by an outside investor (not the company). It reports a holding of more than 5% of a share class; percentage and holder name are in the filing.
Sep 9, 2026 · Form 8-K — Major event / current report
Current report — a filing companies must make within 4 business days of a major event
- Item 7.01 — Released information under Regulation FD (e.g. a presentation or press release).
Sep 8, 2026 · Form 4 — Insider trade
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
- Adar1 Capital Management, Llc bought 900,000 shares at $1.78 (≈$1.60M) on Sep 3, 2026
- Adar1 Capital Management, Llc bought 900,000 shares at $1.78 (≈$1.60M) on Sep 3, 2026
- Schneeberger Daniel bought 900,000 shares at $1.78 (≈$1.60M) on Sep 3, 2026
- Schneeberger Daniel bought 900,000 shares at $1.78 (≈$1.60M) on Sep 3, 2026
- Adar1 Capital Management, Llc bought 900,000 shares at $1.78 (≈$1.60M) on Sep 3, 2026
- Adar1 Capital Management, Llc bought 900,000 shares at $1.78 (≈$1.60M) on Sep 3, 2026
- …plus 2 more transaction lines in the filing.
Open-market purchases (P) and sales (S) are shown in colour; awards, exercises and tax withholding are routine pay-related moves. Many sales are pre-planned under 10b5-1 plans.
Sep 8, 2026 · Form SCHEDULE 13G — Passive stake (13G)
Passive stake (13G) — an investor reported owning more than 5%
Filed by an outside investor (not the company). It reports a holding of more than 5% of a share class; percentage and holder name are in the filing.
Sep 8, 2026 · Form SCHEDULE 13G/A — Update to a passive 5%+ stake (13G)
Update to a passive 5%+ stake (13G)
Filed by an outside investor (not the company). It reports a holding of more than 5% of a share class; percentage and holder name are in the filing.
Sep 2, 2026 · Form 4 — Insider trade
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
- Schneeberger Daniel bought 187,704 shares at $1.80 (≈$337.87K) on Sep 2, 2026
Open-market purchases (P) and sales (S) are shown in colour; awards, exercises and tax withholding are routine pay-related moves. Many sales are pre-planned under 10b5-1 plans.
Aug 27, 2026 · Form SCHEDULE 13G — Passive stake (13G)
Passive stake (13G) — an investor reported owning more than 5%
Filed by an outside investor (not the company). It reports a holding of more than 5% of a share class; percentage and holder name are in the filing.
Aug 27, 2026 · Form SCHEDULE 13G — Passive stake (13G)
Passive stake (13G) — an investor reported owning more than 5%
Filed by an outside investor (not the company). It reports a holding of more than 5% of a share class; percentage and holder name are in the filing.
Things to know before you trade TENX
- Last results release: Jul 31, 2026 (8-K Item 2.02). Previous ones: May 12, 2026, Mar 10, 2026, Nov 12, 2025. Based on that rhythm, the next report is likely around Oct 30, 2026 — an estimate, not a confirmed date.
- How much it moves: over the last 20 sessions the average daily move was 3.45% (largest 12.6%). That is a volatile stock.
- Liquidity: about 2.43M shares (≈$3.69M) trade per day on average.
- 52-week position: $1.52 vs a range of $1.31–$19.40 (1% of the range).
- Dividends: no cash dividends in the last 2 years.
- Splits: none in the last 2 years.
- Insider trades (Form 4, last 12 months, recent 25 shown): 25 open-market buys, 0 sales; latest: Declan Doogan bought 53,000 shares on Sep 16, 2026.
- Latest filings: 8-K Oct 8, 2026; 8-K Sep 9, 2026; 8-K Aug 10, 2026.
- Share count: 37.42M shares outstanding (Jul 28, 2026), +720.3% vs a year earlier — notable dilution.
- Listing: Nasdaq · industry: Pharmaceutical Preparations.
TENX market data (last 20 sessions)
| Date | Open | High | Low | Close | Volume |
|---|---|---|---|---|---|
| Oct 19, 2026 | 1.41 | 1.54 | 1.41 | 1.52 | 2.58M |
| Oct 16, 2026 | 1.51 | 1.52 | 1.36 | 1.36 | 1.78M |
| Oct 15, 2026 | 1.55 | 1.56 | 1.51 | 1.51 | 2.01M |
| Oct 14, 2026 | 1.60 | 1.65 | 1.53 | 1.53 | 1.96M |
| Oct 13, 2026 | 1.84 | 1.84 | 1.58 | 1.60 | 7.68M |
| Oct 12, 2026 | 1.88 | 1.88 | 1.83 | 1.83 | 789.20K |
| Oct 9, 2026 | 1.86 | 1.91 | 1.80 | 1.87 | 2.34M |
| Oct 8, 2026 | 1.91 | 1.91 | 1.83 | 1.86 | 2.41M |
| Oct 7, 2026 | 1.92 | 1.95 | 1.89 | 1.91 | 701.50K |
| Oct 6, 2026 | 1.96 | 2.00 | 1.90 | 1.93 | 1.18M |
| Oct 5, 2026 | 1.98 | 1.99 | 1.88 | 1.96 | 1.47M |
| Oct 2, 2026 | 1.96 | 2.00 | 1.92 | 1.98 | 2.03M |
| Oct 1, 2026 | 1.90 | 1.96 | 1.87 | 1.93 | 2.29M |
| Sep 30, 2026 | 1.84 | 1.92 | 1.80 | 1.89 | 4.22M |
| Sep 29, 2026 | 1.83 | 1.89 | 1.81 | 1.84 | 2.27M |
| Sep 28, 2026 | 1.81 | 1.88 | 1.80 | 1.85 | 2.21M |
| Sep 25, 2026 | 1.88 | 1.93 | 1.81 | 1.81 | 1.99M |
| Sep 24, 2026 | 1.89 | 1.91 | 1.80 | 1.89 | 4.08M |
| Sep 23, 2026 | 1.91 | 1.94 | 1.86 | 1.90 | 2.35M |
| Sep 22, 2026 | 1.88 | 1.95 | 1.88 | 1.94 | 2.19M |
About Tenax Therapeutics
Tenax Therapeutics (TENX) is listed on the Nasdaq and classified by the SEC under “Pharmaceutical Preparations”. Its business address is in CHAPEL HILL, NC. State of incorporation: DE. Fiscal year ends December 31. SEC CIK 34956.
TENX board of directors & executives
From SEC Form 3/4/5 insider filings made in the last 12 months (date = latest filing).
Directors
| Name | Role | Latest filing |
|---|---|---|
| June Sherie Almenoff | Director | Jan 13, 2026 |
| Michael H. Davidson | Director | Jan 13, 2026 |
| Declan Doogan | Director | Sep 17, 2026 |
| Christopher Thomas Giordano | CEO | Sep 15, 2026 |
| Robyn Hunter | Director | Jan 13, 2026 |
| Gerald T Proehl | Director | Jan 13, 2026 |
| Stuart Rich | Chief Medical Officer | Jan 13, 2026 |
Executive officers
| Name | Title | Latest filing |
|---|---|---|
| Christopher Thomas Giordano | CEO | Sep 15, 2026 |
| Thomas Mcgauley | Interim CFO | Feb 3, 2026 |
| Stuart Rich | Chief Medical Officer | Jan 13, 2026 |
| Thomas R Ii Staab | Chief Financial Officer | Sep 15, 2026 |
Recent insider buys & sales
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Sep 16, 2026 | Declan Doogan | Buy | 53,000 | $1.92 |
| Sep 16, 2026 | Declan Doogan | Buy | 53,000 | $1.92 |
| Sep 16, 2026 | Declan Doogan | Buy | 53,000 | $1.92 |
| Sep 16, 2026 | Declan Doogan | Buy | 53,000 | $1.92 |
| Sep 15, 2026 | Christopher Thomas Giordano | Buy | 4,850 | $1.82 |
| Sep 15, 2026 | Christopher Thomas Giordano | Buy | 4,850 | $1.82 |
| Sep 15, 2026 | Christopher Thomas Giordano | Buy | 4,850 | $1.82 |
| Sep 15, 2026 | Christopher Thomas Giordano | Buy | 4,850 | $1.82 |
| Sep 11, 2026 | Thomas R Ii Staab | Buy | 5,675 | $1.94 |
| Sep 11, 2026 | Thomas R Ii Staab | Buy | 5,675 | $1.94 |
| Sep 11, 2026 | Thomas R Ii Staab | Buy | 5,675 | $1.94 |
| Sep 11, 2026 | Thomas R Ii Staab | Buy | 5,675 | $1.94 |
| Sep 11, 2026 | Christopher Thomas Giordano | Buy | 6,000 | $1.88 |
| Sep 11, 2026 | Christopher Thomas Giordano | Buy | 6,000 | $1.88 |
| Sep 11, 2026 | Christopher Thomas Giordano | Buy | 6,000 | $1.88 |
TENX financials (annual, from XBRL filings)
| Fiscal year end | Revenue | Net income | Diluted EPS | Operating cash flow |
|---|---|---|---|---|
| Dec 31, 2025 | $0 | $-52.60M | -1.34 | $-35.80M |
| Dec 31, 2024 | $0 | $-17.60M | -1.15 | $-14.81M |
| Dec 31, 2023 | — | $-7.71M | -31.04 | $-5.90M |
| Dec 31, 2022 | — | $11.05M | — | $-11.39M |
| Dec 31, 2021 | — | $-32.47M | — | $-10.86M |
Latest balance sheet: total assets $121.66M, total liabilities $8.07M, cash $118.00M (as of Jun 30, 2026).
TENX earnings / results-day log
| Date | Filing | Close that day |
|---|---|---|
| Jul 31, 2026 | 8-K Item 2.02 (results) | $13.70 |
| May 12, 2026 | 8-K Item 2.02 (results) | $12.17 |
| Mar 10, 2026 | 8-K Item 2.02 (results) | $14.51 |
| Nov 12, 2025 | 8-K Item 2.02 (results) | $6.99 |
| Aug 13, 2025 | 8-K Item 2.02 (results) | $5.91 |
| May 14, 2025 | 8-K Item 2.02 (results) | $5.68 |
| Mar 25, 2025 | 8-K Item 2.02 (results) | $6.26 |
| Nov 13, 2024 | 8-K Item 2.02 (results) | $4.75 |
| Aug 13, 2024 | 8-K Item 2.02 (results) | — |
| May 14, 2024 | 8-K Item 2.02 (results) | — |
| Mar 28, 2024 | 8-K Item 2.02 (results) | — |
| May 19, 2016 | 8-K Item 2.02 (results) | — |
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Information only, not investment advice. BuyMeWhiskey is not a registered investment adviser or broker-dealer; nothing here is a recommendation to buy, sell or hold any security, and there are no price targets. Data comes from SEC EDGAR filings and public end-of-day market data and may be delayed or contain errors. Verify with the company's filings before making decisions. Prices: end-of-day data as of Oct 19, 2026, 4:00 PM ET. Filings: SEC EDGAR. Refreshed every 2 hours during US market hours.