Access Industries and affiliated reporting persons filed Amendment No. 7 to their beneficial ownership statement regarding Disc Medicine, Inc. on October 26, 2026, disclosing an aggregate position of 2,943,410 shares following an event dated October 22, 2026.

Key Highlights

  • Total beneficial ownership: AI DMI LLC, Access Industries Holdings LLC, Access Industries Management, LLC, and Len Blavatnik each report aggregate beneficial ownership of 2,943,410 shares of Disc Medicine common stock.
  • Ownership percentage: The aggregate position represents 6.6% of the class, calculated against a base of 44,549,747 shares.
  • Position composition: The 2,943,410 shares comprise 2,739,329 shares of common stock and 204,081 pre-funded warrants exercisable at $0.0001 per share.
  • Share base used: The denominator of 44,549,747 reflects 44,345,666 outstanding shares reported in Disc Medicine's prospectus supplement filed October 21, 2026, plus the 204,081 shares underlying the pre-funded warrants.
  • Triggering event date: The event requiring this amendment occurred on October 22, 2026, according to the filing.
  • Direct holder: The 2,739,329 shares and 204,081 pre-funded warrants are owned directly by AI DMI LLC; beneficial ownership is attributed to the other reporting persons through control relationships.

Access Industries Discloses Updated Holdings in Disc Medicine After October 2026 Transaction

According to the filing, Disc Medicine, Inc. is a biopharmaceutical company whose common stock trades on the Nasdaq Global Market under the symbol "IRON," with par value $0.0001 per share and CUSIP 254604101. The company's principal executive offices are located at 321 Arsenal Street, Suite 101, Watertown, Massachusetts 02472. This Amendment No. 7 is the latest in a series of updates to the original Schedule 13D first submitted on January 9, 2023, and subsequently amended six prior times.

The filing discloses that AI DMI LLC holds sole voting and dispositive power over all 2,943,410 shares, while Access Industries Holdings LLC, Access Industries Management, LLC, and Len Blavatnik each report shared voting and shared dispositive power over the same 2,943,410 shares and zero sole voting or dispositive power. According to the filing, beneficial ownership is attributed to AIH, AIM, and Mr. Blavatnik because "Len Blavatnik controls AIM and holds a majo[rity]" interest, as stated in the source text. The source of funds for all reporting persons is listed as "AF" (affiliated funds) in the filing.

The amendment updates Items 5(a) and 5(b) of the prior Schedule, which address the aggregate interest in Disc Medicine securities and the voting and dispositive power breakdown among the reporting persons. The filing states it "refers only to information that has materially changed since the filing of the Schedule" and was submitted in accordance with Rule 13d-2 of the Securities Exchange Act of 1934.

What Was Disclosed

Amendment No. 7 to the beneficial ownership filing by Access Industries-affiliated entities and Len Blavatnik reported a combined position of 2,943,410 shares, or 6.6%, of Disc Medicine, Inc. (NASDAQ:IRON), consisting of common stock and pre-funded warrants, following an event on October 22, 2026.