Insider buying on Sep 15, 2026
Insiders at 26 companies reported 49 open-market buys of their own stock on Sep 15, 2026. Plan trades are left out.
Newest first
WhoTradeCompanyValueTradedThe stock’s closing price from the first session on or after the trade day to the latest close, with the S&P 500 over the same days. A fact about the stock, not a result anyone earned.
Christopher Thomas GiordanoCEOBoughtRaised their holding by 28%
Tenax TherapeuticsTENX$8.8K4,850 shares at $1.82Sep 1542d agoStock since trade−6.0%Sep 15, 2026 close $1.83 → Oct 23, 2026 close $1.72. S&P 500 +0.3% over the same days.
Christopher Thomas GiordanoCEOBoughtRaised their holding by 53%Tenax TherapeuticsTENX$11.3K6,000 shares at $1.88Sep 1146d agoStock since trade−7.5%Sep 11, 2026 close $1.86 → Oct 23, 2026 close $1.72. S&P 500 −0.6% over the same days.
Matthew WilksDirectorBoughtRaised their holding by 835%
Flotek IndustriesFTK$34.32M1,319,493 shares at $26.01Sep 1146d agoStock since trade−12.6%Sep 11, 2026 close $27.33 → Oct 23, 2026 close $23.90. S&P 500 −0.6% over the same days.
Thomas R. Staab IIChief Financial OfficerBoughtRaised their holding by 57%Tenax TherapeuticsTENX$11K5,675 shares at $1.94Sep 1146d agoStock since trade−7.5%Sep 11, 2026 close $1.86 → Oct 23, 2026 close $1.72. S&P 500 −0.6% over the same days.
Jaymes WintersChief Executive OfficerBoughtRaised their holding by 26%
Solidion TechnologySTI$7K984 shares at $7.11Sep 948d agoStock since trade−39.0%Sep 9, 2026 close $7.12 → Oct 22, 2026 close $4.34. S&P 500 +0.2% over the same days.
Karin-Joyce TjonDirectorBoughtRaised their holding by 9.4%Solidion TechnologySTI$36K5,000 shares at $7.20Sep 1443d agoStock since trade−38.3%Sep 14, 2026 close $7.03 → Oct 22, 2026 close $4.34. S&P 500 +0.4% over the same days.
Amir F. HeshmatpourCEO, PresidentBoughtRaised their holding by 1.1%
Neonc Technologies HoldingsNTHI$115.4K35,000 shares at $3.30Sep 1542d agoStock since trade−1.2%Sep 15, 2026 close $3.31 → Oct 23, 2026 close $3.27. S&P 500 +0.3% over the same days.
Amir F. HeshmatpourCEO, PresidentBoughtRaised their holding by 0.5%Neonc Technologies HoldingsNTHI$59.4K15,000 shares at $3.96Sep 1443d agoStock since trade−13.5%Sep 14, 2026 close $3.78 → Oct 23, 2026 close $3.27. S&P 500 −0.1% over the same days.
Thomas C. ChenCEOBoughtRaised their holding by 27%Neonc Technologies HoldingsNTHI$20K5,242 shares at $3.82Sep 1443d agoStock since trade−13.5%Sep 14, 2026 close $3.78 → Oct 23, 2026 close $3.27. S&P 500 −0.1% over the same days.
Thomas C. ChenCEOBoughtRaised their holding by 40%Neonc Technologies HoldingsNTHI$20K5,556 shares at $3.60Sep 1146d agoStock since trade−11.1%Sep 11, 2026 close $3.68 → Oct 23, 2026 close $3.27. S&P 500 −0.6% over the same days.