Yu Jonathan Yen-Wen sold $66K of IRON
Yu Jonathan Yen-Wen (Chief Operating Officer) sold 804 shares of Disc Medicine, Inc. (IRON) at $82.64 on 2026-08-12 under a Rule 10b5-1 trading plan.
How this was made
The 30-second read
Why it matters
The newest disclosed fact is the specific open-market sale details (shares, price, total value) and that it was executed under a pre-arranged 10b5-1 plan.
Market read
Traders may briefly note insider selling, but 10b5-1 structure and small dollar value typically limit tradable signal strength.
What to watch
The transaction size is modest (about $66.4K) and the plan is pre-arranged, so it may not reflect a change in company outlook.
Background
The article is a SEC Form 4 insider transaction disclosure for Disc Medicine, Inc. (IRON).
Ticker impact
Disc Medicine COO Yu Jonathan Yen-Wen sold 804 shares in an open-market transaction at $82.6425 on 2026-08-12 under a 10b5-1 plan.
Likely minimal immediate impact; any effect would be sentiment-only and typically fades as 10b5-1 sales are expected.
The filing is a Form 4 insider transaction, but it explicitly states a pre-arranged 10b5-1 plan, reducing the likelihood of new, non-public information driving the sale.
Market effects
No clear sector read-through from a single 10b5-1 insider sale.
None.
None.
Counterpoint
Even with a 10b5-1 plan, repeated insider selling can coincide with periods of valuation or liquidity management, which some traders may still interpret as caution.
Key entities
- issuerDisc Medicine, Inc.
Company whose insider transaction was disclosed on Form 4.
- insiderYu Jonathan Yen-Wen
Chief Operating Officer who sold shares.