Seth Lederman, Chief Executive Officer and Director of Tonix Pharmaceuticals Holding Corp., filed a Form 4 on November 12, 2026, reporting the open-market purchase of 5,000 shares of common stock on November 11, 2026.

Key Highlights

  • Transaction: Lederman acquired 5,000 shares of Tonix Pharmaceuticals common stock (code P) on November 11, 2026, at a price of $4.055 per share.
  • Direct holdings after transaction: Lederman directly owns 16,005 shares of common stock following the reported purchase.
  • Indirect holdings: Lederman also holds 20,001 shares indirectly through an IRA account and 1 share indirectly through Lederman & Co., as reported in the filing.
  • Control person note: The filing states that Lederman "may be deemed a control person" of Lederman & Co.
  • Roles: The reporting person is identified as both a Director and Chief Executive Officer of Tonix Pharmaceuticals Holding Corp. (NASDAQ:TNXP).

Lederman's November 11 Open-Market Purchase of Tonix Common Stock

According to the Form 4 filed with the SEC on November 12, 2026, Seth Lederman purchased 5,000 shares of Tonix Pharmaceuticals Holding Corp. common stock, par value $0.001, on November 11, 2026, at a price of $4.055 per share. The transaction code recorded is "P," indicating an open-market purchase. The filing does not indicate the transaction was made pursuant to a Rule 10b5-1 plan.

Following the reported transaction, Lederman directly holds 16,005 shares of common stock, the filing discloses. In addition, the filing reports two indirect ownership positions: 20,001 shares held through an IRA account and 1 share held through Lederman & Co. The filing notes that Lederman "may be deemed a control person" of Lederman & Co. All three ownership lines are reported separately, as required by the form.

No derivative securities transactions were reported in Table II of this filing. The filing was signed by Seth Lederman on November 12, 2026, the same day it was submitted to the SEC.

What Was Disclosed

Tonix Pharmaceuticals Holding Corp. (NASDAQ:TNXP) CEO and Director Seth Lederman disclosed a purchase of 5,000 shares at $4.055 on November 11, 2026, bringing his direct holdings to 16,005 shares, with additional indirect holdings of 20,002 shares across an IRA and Lederman & Co.