Disc Medicine (NASDAQ: IRON) COO trades 804 shares via 10b5-1 plan
Rhea-AI Filing Summary
Disc Medicine, Inc. Chief Operating Officer Yu Jonathan Yen-Wen exercised stock options for 804 shares of common stock at an exercise price of $13.50 per share and sold 804 shares of common stock at a weighted average price of $82.6425 per share, with individual sale prices ranging from $82.54 to $82.83. The transactions were made pursuant to a Rule 10b5-1 trading plan adopted on March 17, 2026. Following the option exercise, he held 22,943 option shares tied to this grant, which vests in 48 equal monthly installments after December 29, 2022 and expires on December 28, 2032.
Positive
- None.
Negative
- None.
Insider Trade Summary 10b5-1
Exercise and Sale: 804 shares ($56K approx. pre-tax spread)
Exercise and Sale
3 txns
Insider
Yu Jonathan Yen-Wen
Role
Chief Operating Officer
Sold
804 shs ($66K)
Approx. gross sale proceeds
$66K
Approx. exercise cost
$11K
Approx. pre-tax spread
$56K
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Exercise | Stock Option (Right to Buy) F1, F3 | 804 | $0.00 | $0.00 |
| Exercise | Common Stock F1 | 804 | $13.50 | $11K |
| Sale | Common Stock F1, F2 | 804 | $82.6425 | $66K |
Holdings After Transaction:
Stock Option (Right to Buy) — 22,943 shares (Direct);
Common Stock — 54,324 shares (Direct)
Footnotes (3)
- F1. These transactions were effected by the Reporting Person pursuant to a Rule 10b5-1 trading plan adopted on March 17, 2026.
- F2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $82.54 to $82.83, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (2) to this Form 4.
- F3. The shares underlying this option vest in 48 equal monthly installments following December 29, 2022, subject to the Reporting Person's continued service on each such vesting date.
Key Figures
Shares sold: 804 shares
Weighted average sale price: $82.6425 per share
Option exercise price: $13.50 per share
+4 more
7 metrics
Shares sold
804 shares
Common stock sold on August 12, 2026
Weighted average sale price
$82.6425 per share
Common stock sales ranging from $82.54 to $82.83
Option exercise price
$13.50 per share
Stock Option (Right to Buy) for 804 shares
Options remaining
22,943 shares
Option shares held after exercising 804 shares
Option vesting schedule
48 equal monthly installments
Vesting following December 29, 2022
Option expiration date
December 28, 2032
Expiration of the Stock Option (Right to Buy)
10b5-1 plan adoption date
March 17, 2026
Rule 10b5-1 trading plan governing these transactions
Key Terms
Rule 10b5-1 trading plan, weighted average price, Stock Option (Right to Buy), vesting, +1 more
5 terms
Rule 10b5-1 trading plan regulatory
"transactions were effected by the Reporting Person pursuant to a Rule 10b5-1 trading plan"
A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.
weighted average price financial
"The price reported in Column 4 is a weighted average price"
Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.
Stock Option (Right to Buy) financial
"security_title": "Stock Option (Right to Buy)""
vesting financial
"shares underlying this option vest in 48 equal monthly installments"
Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.
derivative security financial
"transaction_code_description": "Exercise or conversion of derivative security""
A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.
FAQ
What did IRON’s COO Yu Jonathan Yen-Wen report in this Form 4?
He exercised options for 804 shares at $13.50 per share and sold 804 shares of Disc Medicine common stock at a weighted average price of $82.6425 per share on August 12, 2026.
Was the IRON insider transaction done under a Rule 10b5-1 plan?
Yes. The filing states the transactions were effected under a Rule 10b5-1 trading plan adopted on March 17, 2026, indicating they were pre-arranged rather than discretionary trades on that date.
What options did the IRON COO exercise in this Form 4 filing?
He exercised a Stock Option (Right to Buy) covering 804 shares of common stock at an exercise price of $13.50 per share. This option grant vests in 48 equal monthly installments after December 29, 2022.
What is the nature of the IRON insider’s remaining derivative position?
The remaining derivative position is a stock option for 22,943 underlying shares of Disc Medicine common stock, vesting monthly and scheduled to expire on December 28, 2032, with an exercise price of $13.50 per share.
AI-generated analysis. How Rhea-AI works. Not financial advice.
