IRON insider trading — Disc Medicine, Inc.
Over the last 90 days, insiders at Disc Medicine, Inc. (IRON) made 0 open-market purchases worth $0 and 1 open-market sale worth $1.90M, making them net sellers by $1.90M. The largest sale was by Bitterman Kevin (Director), who sold 27,136 shares for $1.90M on Sep 11, 2026.
Updated Oct 16, 2026.
Recent IRON insider transactions
Every Form 4 filed by Disc Medicine, Inc. officers, directors and 10% owners in the last 90 days, newest first. P = open-market purchase, S = open-market sale; other codes are awards, option exercises, tax withholding or gifts.
| Trade date | Insider | Role | Type | Ownership | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|---|
| Sep 15, 2026 | Quisel John D | Chief Executive Officer | M · Option exercise | Direct | 36,000 | $1.01 | $36K | Form 4 |
| Sep 11, 2026 | Bitterman Kevin | Director | M · Option exercise | Direct | 27,136 | $45.07 | $1.22M | Form 4 |
| Sep 11, 2026 | Bitterman Kevin | Director | S · Sale | Direct | 27,136 | $70.11 | $1.90M | Form 4 |
| Sep 4, 2026 | Bitterman Kevin | Director | S · Sale · 10b5-1 | Indirect | 1,689 | $79.96 | $135K | Form 4 |
| Sep 3, 2026 | Bitterman Kevin | Director | S · Sale · 10b5-1 | Indirect | 5,203 | $79.98 | $416K | Form 4 |
| Sep 2, 2026 | Bitterman Kevin | Director | S · Sale · 10b5-1 | Indirect | 49,164 | $80.17 | $3.94M | Form 4 |
| Sep 1, 2026 | Bitterman Kevin | Director | S · Sale · 10b5-1 | Indirect | 129 | $79.95 | $10K | Form 4 |
| Aug 25, 2026 | Yu Jonathan Yen-Wen | Chief Operating Officer | M · Option exercise · 10b5-1 | Direct | 8,796 | $13.50 | $119K | Form 4 |
| Aug 25, 2026 | Yu Jonathan Yen-Wen | Chief Operating Officer | S · Sale · 10b5-1 | Direct | 8,796 | $83.12 | $731K | Form 4 |
| Aug 24, 2026 | Yu Jonathan Yen-Wen | Chief Operating Officer | M · Option exercise · 10b5-1 | Direct | 300 | $13.50 | $4K | Form 4 |
| Aug 24, 2026 | Yu Jonathan Yen-Wen | Chief Operating Officer | S · Sale · 10b5-1 | Direct | 300 | $82.53 | $25K | Form 4 |
| Aug 17, 2026 | Quisel John D | Chief Executive Officer | M · Option exercise · 10b5-1 | Direct | 33,000 | $13.50 | $446K | Form 4 |
| Aug 17, 2026 | Quisel John D | Chief Executive Officer | S · Sale · 10b5-1 | Direct | 33,000 | $79.15 | $2.61M | Form 4 |
| Aug 12, 2026 | Yu Jonathan Yen-Wen | Chief Operating Officer | M · Option exercise · 10b5-1 | Direct | 804 | $13.50 | $11K | Form 4 |
| Aug 12, 2026 | Yu Jonathan Yen-Wen | Chief Operating Officer | S · Sale · 10b5-1 | Direct | 804 | $82.64 | $66K | Form 4 |
| Aug 6, 2026 | Khara Rahul | Chief Legal Officer | M · Option exercise · 10b5-1 | Direct | 5,000 | $14.69 | $73K | Form 4 |
| Aug 6, 2026 | Khara Rahul | Chief Legal Officer | S · Sale · 10b5-1 | Direct | 5,000 | $80.00 | $400K | Form 4 |
IRON insider trading FAQ
Are insiders buying IRON stock?
Not on the open market. In the last 90 days, Disc Medicine, Inc. insiders made no open-market purchases, and 1 open-market sale totaling $1.90M. Purchases with the insider's own money are generally seen as a stronger signal than sales, which happen for many reasons (taxes, diversification, planned 10b5-1 sales).
Who are the insiders trading IRON?
Recent sellers: Bitterman Kevin.
Where does IRON insider trading data come from?
Every transaction comes from SEC Form 4 filings on EDGAR. Company officers, directors and 10% owners must file a Form 4 within two business days of buying or selling. InsiderBolt reads these filings directly from the SEC.
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Insider trading data is for informational purposes only and is not investment advice. Filings can be amended; always confirm details on SEC EDGAR.