Peconic Partners LLC filed a Schedule 13G with the SEC on November 2, 2026, disclosing beneficial ownership of 56,434,141 shares of AMC Entertainment Holdings, Inc. common stock as of September 30, 2026.

Key Highlights

  • Aggregate beneficial ownership: Peconic Partners LLC reported beneficial ownership of 56,434,141 shares of AMC Entertainment Holdings, Inc. common stock.
  • Percent of class: The filing states the position represents 6.32% of the outstanding class of common stock, $0.01 par value.
  • Shared voting and dispositive power only: Peconic Partners LLC reported 0 shares with sole voting or sole dispositive power; all 56,434,141 shares carry shared voting and shared dispositive power.
  • Group disclosure: According to the filing, the group consists of Peconic Partners LLC and William F. Harnisch, who is the owner of Peconic Partners LLC and personally holds 300,000 shares of the 56,434,141 shares reported.
  • Triggering event date: The date of the event requiring the filing was September 30, 2026, as stated in the document.
  • Filer classification: Peconic Partners LLC identified itself as an investment adviser (type "IA") for purposes of this filing.

Peconic Partners LLC Discloses Over 56 Million AMC Entertainment Shares on Schedule 13G

Peconic Partners LLC, a New York-based investment adviser located at 599 Lexington Ave, 46th Floor, New York, NY 10022, filed a Schedule 13G with the SEC disclosing a position in AMC Entertainment Holdings, Inc. (NYSE:AMC). The filing covers common stock with a par value of $0.01 per share and CUSIP number 00165C302. AMC Entertainment Holdings, Inc. is headquartered at One AMC Way, 11500 Ash Street, Leawood, Kansas 66211, according to the filing.

The filing reports that Peconic Partners LLC beneficially owns 56,434,141 shares, representing 6.32% of the class. All 56,434,141 shares are attributed to shared voting power and shared dispositive power, with zero shares held under sole voting or sole dispositive power. The filing identifies a group consisting of Peconic Partners LLC and William F. Harnisch. According to the document, Mr. Harnisch is the owner of Peconic Partners LLC and holds 300,000 shares of the 56,434,141 total shares reported.

William F. Harnisch signed the filing in his capacity as President and Chief Executive Officer of Peconic Partners LLC. The certification accompanying the filing states that, to the best of the filer's knowledge and belief, "the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities."

What Was Disclosed

Peconic Partners LLC filed a Schedule 13G reporting beneficial ownership of 56,434,141 shares of AMC Entertainment Holdings common stock, equal to 6.32% of the class, with all voting and dispositive power held on a shared basis as of September 30, 2026.