Disc Medicine (NASDAQ: IRON) COO exercises options, sells 9,700 shares under 10b5-1 plan
Filing Impact
Filing Sentiment
Form Type
4
Rhea-AI Filing Summary
Disc Medicine, Inc. Chief Operating Officer Jonathan Yu Yen-Wen executed an options-related trade involving company stock. He exercised stock options to acquire 9,700 shares of common stock at $13.50 per share, then sold 9,700 shares in an open-market transaction at a weighted average price of $72.6593 per share.
The transactions were carried out under a pre-arranged Rule 10b5-1 trading plan adopted on March 17, 2026. Following these trades, he directly holds 54,324 shares of common stock and 24,147 stock options that are scheduled to vest monthly through December 29, 2026 and expire on December 28, 2032.
Positive
- None.
Negative
- None.
Insider Trade Summary 10b5-1
Net Seller: 9,700 shares ($704,795)
Net Sell
3 txns
Insider
Yu Jonathan Yen-Wen
Role
Chief Operating Officer
Sold
9,700 shs ($705K)
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Exercise | Stock Option (Right to Buy) | 9,700 | $0.00 | -- |
| Exercise | Common Stock | 9,700 | $13.50 | $131K |
| Sale | Common Stock | 9,700 | $72.6593 | $705K |
Holdings After Transaction:
Stock Option (Right to Buy) — 24,147 shares (Direct, null);
Common Stock — 64,024 shares (Direct, null)
Footnotes (1)
- These transactions were effected by the Reporting Person pursuant to a Rule 10b5-1 trading plan adopted on March 17, 2026. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $72.50 to $72.68, 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. 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: 9,700 shares
Sale price: $72.6593 per share
Options exercise price: $13.50 per share
+5 more
8 metrics
Shares sold
9,700 shares
Open-market sale of common stock on June 22, 2026
Sale price
$72.6593 per share
Weighted average sale price for 9,700 shares
Options exercise price
$13.50 per share
Exercise price of stock options converted into 9,700 shares
Common shares after trade
54,324 shares
Direct common stock holdings after reported transactions
Options remaining after trade
24,147 options
Stock options held after exercise, expiring December 28, 2032
Rule 10b5-1 plan adoption date
March 17, 2026
Date COO adopted trading plan used for these transactions
Sale price range
$72.50–$72.68 per share
Range of individual transaction prices within reported sale
Option expiration
December 28, 2032
Expiration date of the stock option grant exercised in part
Key Terms
Rule 10b5-1 trading plan, weighted average price, Stock Option (Right to Buy), Exercise or conversion of derivative security, +1 more
5 terms
Rule 10b5-1 trading plan regulatory
"These transactions were effected by the Reporting Person pursuant to a Rule 10b5-1 trading plan adopted on March 17, 2026"
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)""
Exercise or conversion of derivative security financial
"transaction_code_description: "Exercise or conversion of derivative security""
vest in 48 equal monthly installments financial
"The shares underlying this option vest in 48 equal monthly installments"
FAQ
What did Disc Medicine (IRON) COO Jonathan Yu Yen-Wen do in this Form 4 filing?
He exercised stock options to acquire 9,700 Disc Medicine shares at $13.50 each, then sold 9,700 shares at a weighted average of $72.6593. The filing shows an options-related exercise-and-sell transaction executed under a pre-arranged Rule 10b5-1 trading plan.
What options did the Disc Medicine (IRON) COO exercise in this Form 4?
He exercised stock options covering 9,700 shares of Disc Medicine common stock at a conversion or exercise price of $13.50 per share. These options are part of a larger grant that vests in 48 equal monthly installments starting December 29, 2022, subject to continued service.
Were the Disc Medicine (IRON) insider transactions under a Rule 10b5-1 plan?
Yes. A footnote explains that the transactions were executed under a Rule 10b5-1 trading plan adopted on March 17, 2026. Such plans allow insiders to pre-schedule trades, which can make the timing of sales less indicative of their current market views.