Yu Jonathan Yen-Wen
Chief Operating Officer
Yu Jonathan Yen-Wen has filed 9 SEC Form 4 filings (23 transaction rows) across 1 company, with disclosures dating back to 2025. 9 of those filings fall inside the rolling window. Most recent filing: Aug 27, 2026.
On the most recent filing, Yu Jonathan Yen-Wen is listed as Chief Operating Officer at Disc Medicine, Inc. Inside the rolling window, Yu Jonathan Yen-Wen reported no open-market purchases and 9 open-market sales totaling $5.6M in IRON. The largest disclosed transaction in the window is a sale of 30,000 IRON shares on Nov 11, 2025, worth $2.5M.
Companies traded
Other insiders at IRON
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$5.6M
reported sales (SEC code S)
Companies
1
in the rolling window
| Source | |||||||
|---|---|---|---|---|---|---|---|
| IRON | Chief Operating Officer | Sale | 300 | $25K | Aug 27 | SEC ↗ | |
| IRON | Chief Operating Officer | Sale | 8,796 | $731K | Aug 27 | SEC ↗ | |
| IRON | Chief Operating Officer | Sale | 804 | $66K | Aug 14 | SEC ↗ | |
| IRON | Chief Operating Officer | Sale | 100 | $8K | Jul 9 | SEC ↗ | |
| IRON | Chief Operating Officer | Sale | 300 | $22K | Jun 30 | SEC ↗ | |
| IRON | Chief Operating Officer | Sale | 9,700 | $705K | Jun 25 | SEC ↗ | |
| IRON | Chief Operating Officer | Sale | 18,612 | $1.3M | Jun 18 | SEC ↗ | |
| IRON | Chief Operating Officer | Sale | 3,231 | $203K | Feb 17 | SEC ↗ | |
| IRON | Chief Operating Officer | Sale | 30,000 | $2.5M | Nov 13 | SEC ↗ |
Frequently asked questions
How many SEC Form 4 filings has Yu Jonathan Yen-Wen made?
Yu Jonathan Yen-Wen has filed 9 SEC Form 4 filings (23 transaction rows) across 1 company since 2025.
Which companies does Yu Jonathan Yen-Wen trade?
Yu Jonathan Yen-Wen has filed SEC Form 4 disclosures for 1 company, including IRON.
When was Yu Jonathan Yen-Wen's most recent SEC Form 4 filing?
Yu Jonathan Yen-Wen's most recent SEC Form 4 filing on Tracefour is dated Aug 27, 2026.
What is Yu Jonathan Yen-Wen's job title?
On the most recent SEC Form 4 filings tracked by Tracefour, Yu Jonathan Yen-Wen is listed as Chief Operating Officer.
What is Yu Jonathan Yen-Wen's total buy and sell value in the current window?
Inside the rolling retention window, Yu Jonathan Yen-Wen bought $0 and sold $5.6M based on SEC Form 4 filings.
What was Yu Jonathan Yen-Wen's largest disclosed transaction?
The largest disclosed transaction in the current window is a sale of 30,000 IRON shares on 2025-11-11, worth $2.5M, per SEC Form 4 filings.