Disc Medicine (IRON): AI DMI LLC disclosed a 6.6% stake in IRON and may seek to influence the company 6.6%

6.6%

Stake

2.94M

Shares owned

Stake as of

Oct 22, 2026

Filed

Oct 26, 2026

The story around this disclosure

Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.

1. Oct 19, 2026Company filing · Form 8-K · Material agreement, ResultsSigned an important agreement, and reported its results (and 1 more item)
2. Oct 19, 2026Insider · 1 personInsiders: 3 sales (~$879K)
3. Oct 20, 2026Insider · 1 personInsiders: 3 sales (~$425K)
4. Oct 21, 2026Insider · 1 personInsiders: 3 sales (~$2.0M)

What came next

1. Oct 26, 20265% stakeAI DMI LLC filed an activist stake (13D) of 6.6%
2. Nov 5, 2026Company filing · Form 8-K · ResultsReported its results
3. Nov 10, 2026Insider · Their largest sale since 2023Officer sold ~$1.36M of IRON shares in the open market

How to read SEC Schedule 13D

A Schedule 13D and a Schedule 13G both disclose beneficial ownership of more than 5% of a US company's voting shares. A 13D is the long form, filed by holders who may seek to influence or control the company, and it must state what they intend to do. A 13G is the short form, open only to passive holders and to certain institutions holding in the ordinary course of business, and it asks no question about intent.

Full guide: Schedule 13D vs Schedule 13G: what is the difference?

What else is on file for Disc Medicine

For Disc Medicine, OQRO holds 23 insider filings (SEC Form 4 or Form 144) and 1 fund holdings report (13F) dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its IRON page.

How this filing works

• Schedule 13D vs 13G

Other disclosures at Disc Medicine

• SEC Form 4Nov 12, 2026
• SEC Form 144Nov 10, 2026
• SEC Form 144Oct 21, 2026
• SEC Form 144Oct 21, 2026
• SEC Form 144Oct 21, 2026
• SEC Form 4Oct 21, 2026

Everything OQRO holds on this company is on its IRON page.