Disc Medicine, Inc. (IRON) Insider Trading
Over the last 3 months, IRON insiders made 0 open-market buys and 22 sales, a net sale of -$11.4M (SEC Form 4). Over the last 6 months, 161 institutions increased and 109 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
22
Net (3m)
-$11.4M
Insider trades by month Buys Sells
Feb
Mar
Apr
Jun
Jul
Aug
Context3-month price +9.1%Institutions accumulating (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Aug 26, 2026 | Yu Jonathan Yen-Wenofficer: Chief Operating Officer | Option | 8,796 | $13.50 |
| Aug 26, 2026 | Yu Jonathan Yen-Wenofficer: Chief Operating Officer | Sell | 8,796 | $83.12 |
| Aug 26, 2026 | Yu Jonathan Yen-Wenofficer: Chief Operating Officer | Sell | 300 | $82.53 |
| Aug 26, 2026 | Yu Jonathan Yen-Wenofficer: Chief Operating Officer | Option | 300 | $13.50 |
| Aug 18, 2026 | Quisel John Ddirector, officer: Chief Executive Officer | Sell | 12,712 | $79.20 |
| Aug 18, 2026 | Quisel John Ddirector, officer: Chief Executive Officer | Sell | 11,888 | $79.84 |
| Aug 18, 2026 | Quisel John Ddirector, officer: Chief Executive Officer | Option | 33,000 | $13.50 |
| Aug 18, 2026 | Quisel John Ddirector, officer: Chief Executive Officer | Sell | 8,400 | $78.11 |
| Aug 14, 2026 | Yu Jonathan Yen-Wenofficer: Chief Operating Officer | Sell | 804 | $82.64 |
| Aug 14, 2026 | Yu Jonathan Yen-Wenofficer: Chief Operating Officer | Option | 804 | $13.50 |
| Aug 7, 2026 | Khara Rahulofficer: Chief Legal Officer | Sell | 5,000 | $80.00 |
| Aug 7, 2026 | Khara Rahulofficer: Chief Legal Officer | Option | 5,000 | $14.69 |
| Jul 14, 2026 | Quisel John Ddirector, officer: Chief Executive Officer | Sell | 9,704 | $74.27 |
| Jul 14, 2026 | Quisel John Ddirector, officer: Chief Executive Officer | Option | 7,416 | $13.50 |
| Jul 14, 2026 | Quisel John Ddirector, officer: Chief Executive Officer | Option | 25,584 | $9.86 |
| Jul 14, 2026 | Quisel John Ddirector, officer: Chief Executive Officer | Sell | 6,400 | $76.05 |
| Jul 14, 2026 | Quisel John Ddirector, officer: Chief Executive Officer | Sell | 16,896 | $74.95 |
| Jul 9, 2026 | Yu Jonathan Yen-Wenofficer: Chief Operating Officer | Option | 100 | $13.50 |
| Jul 9, 2026 | Yu Jonathan Yen-Wenofficer: Chief Operating Officer | Sell | 100 | $82.50 |
| Jun 30, 2026 | Khara Rahulofficer: Chief Legal Officer | Sell | 1,649 | $75.00 |
| Jun 30, 2026 | Yu Jonathan Yen-Wenofficer: Chief Operating Officer | Option | 300 | $13.50 |
| Jun 30, 2026 | Yu Jonathan Yen-Wenofficer: Chief Operating Officer | Sell | 300 | $72.50 |
| Jun 30, 2026 | Khara Rahulofficer: Chief Legal Officer | Option | 851 | $14.69 |
| Jun 30, 2026 | Khara Rahulofficer: Chief Legal Officer | Option | 1,649 | $14.69 |
| Jun 24, 2026 | Yu Jonathan Yen-Wenofficer: Chief Operating Officer | Sell | 9,700 | $72.66 |
| Jun 24, 2026 | Yu Jonathan Yen-Wenofficer: Chief Operating Officer | Option | 9,700 | $13.50 |
| Jun 23, 2026 | AHMED NADIMdirector | Grant | 5,176 | $70.79 |
| Jun 23, 2026 | Khara Rahulofficer: Chief Legal Officer | Sell | 1,600 | $70.73 |
| Jun 23, 2026 | Khara Rahulofficer: Chief Legal Officer | Sell | 5,400 | $69.94 |
| Jun 23, 2026 | Khara Rahulofficer: Chief Legal Officer | Option | 7,500 | $14.69 |
Source: IRON SEC Form 4 filings, latest Aug 26, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their IRON positions over the last 6 months (SEC Form 13F).
Increased
161
New positions
90
Reduced
109
Sold out
23
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| FMR LLC | Increased | 5.6M | May 15, 2026 |
| FMR LLC | Reduced | 4.9M | Aug 13, 2026 |
| BlackRock, Inc. | Increased | 2.5M | Aug 7, 2026 |
| RA CAPITAL MANAGEMENT, L.P. | Increased | 2.5M | May 15, 2026 |
| RA CAPITAL MANAGEMENT, L.P. | Unchanged | 2.5M | Aug 14, 2026 |
| BLACKROCK, INC. | Reduced | 2.3M | May 13, 2026 |
| JPMORGAN CHASE & CO | Increased | 1.9M | Aug 12, 2026 |
| PRICE T ROWE ASSOCIATES INC /MD/ | Increased | 1.9M | Aug 14, 2026 |
| WELLINGTON MANAGEMENT GROUP LLP | Increased | 1.7M | Aug 14, 2026 |
| WELLINGTON MANAGEMENT GROUP LLP | Increased | 1.7M | May 15, 2026 |
| STATE STREET CORP | Increased | 1.7M | May 15, 2026 |
| STATE STREET CORP | Reduced | 1.6M | Aug 7, 2026 |
| Vestal Point Capital, LP | Increased | 1.6M | Aug 14, 2026 |
| PRICE T ROWE ASSOCIATES INC /MD/ | Reduced | 1.5M | May 15, 2026 |
| ATLAS VENTURE LIFE SCIENCE ADVISORS, LLC | Unchanged | 1.5M | May 14, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.