IRON
Disc Medicine, Inc. · Healthcare · Market cap $2.9B
Insiders sold $13.6M net in the last 90 days ·4 sellers, 0 buyers· 12 of 13 sales under Rule 10b5-1 plans· latest Form 4 filed Oct 21, 2026
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$109.9M
reported sales (SEC code S)
Unique Insiders
8
in the rolling window
Latest filing
Oct 21, 2026
Bitterman Kevin
Disc Medicine, Inc. (IRON) has 43 SEC Form 4 filings (136 transaction rows) in the rolling window, disclosed by 8 distinct insiders. Most recent filing: Oct 21, 2026.
Inside the rolling window, 8 insiders at Disc Medicine, Inc. reported no open-market purchases and 44 open-market sales totaling $109.9M. The most active filer is Director Bitterman Kevin with 12 filings. Insiders have net sold $21.2M over the trailing 6 months. The most recent open-market filing is a sale of 10,994 shares by Director Bitterman Kevin, dated Oct 19, 2026, worth $879K.
- Industry:Biotechnology
- CEO:John D. Quisel
- Employees:165
- HQ:Watertown, MA, US
- IPO:2020-08-12
| Source | |||||||
|---|---|---|---|---|---|---|---|
| Director | Sale | 10,994 | $879K | Oct 21 | — | SEC ↗ | |
| Director | Sale | 5,312 | $425K | Oct 21 | — | SEC ↗ | |
| Director | Sale | 25,519 | $2.0M | Oct 21 | — | SEC ↗ | |
| Director | Sale | 27,136 | $1.9M | Sep 15 | +12.9% | SEC ↗ | |
| Director | Sale | 1,689 | $135K | Sep 9 | — | SEC ↗ | |
Bitterman KevinFirst in 9 months | Director | Sale | 129 | $10K | Sep 3 | — | SEC ↗ |
Bitterman KevinFirst in 9 months | Director | Sale | 49,164 | $3.9M | Sep 3 | — | SEC ↗ |
Bitterman KevinFirst in 9 months | Director | Sale | 5,203 | $416K | Sep 3 | — | SEC ↗ |
| Chief Operating Officer | Sale | 300 | $25K | Aug 27 | — | SEC ↗ | |
| Chief Operating Officer | Sale | 8,796 | $731K | Aug 27 | — | SEC ↗ | |
| Chief Executive Officer | Sale | 33,000 | $2.6M | Aug 18 | — | SEC ↗ | |
| Chief Operating Officer | Sale | 804 | $66K | Aug 14 | — | SEC ↗ | |
| Chief Legal Officer | Sale | 5,000 | $400K | Aug 7 | — | SEC ↗ | |
| Chief Executive Officer | Sale | 33,000 | $2.5M | Jul 14 | — | SEC ↗ | |
| Chief Operating Officer | Sale | 100 | $8K | Jul 9 | — | SEC ↗ | |
| Chief Legal Officer | Sale | 851 | $64K | Jun 30 | — | SEC ↗ | |
| Chief Legal Officer | Sale | 1,649 | $124K | Jun 30 | — | SEC ↗ | |
| Chief Operating Officer | Sale | 300 | $22K | Jun 30 | — | SEC ↗ | |
| Chief Operating Officer | Sale | 9,700 | $705K | Jun 25 | — | SEC ↗ | |
Khara RahulFirst in 4 months | Chief Legal Officer | Sale | 7,500 | $527K | Jun 23 | — | SEC ↗ |
Quisel John DFirst in 4 months | Chief Executive Officer | Sale | 34,000 | $2.4M | Jun 23 | — | SEC ↗ |
Yu Jonathan Yen-WenFirst in 4 months | Chief Operating Officer | Sale | 18,612 | $1.3M | Jun 18 | — | SEC ↗ |
| Chief Medical Officer | Sale | 5,731 | $380K | Apr 15 | — | SEC ↗ | |
| Chief Financial Officer | Sale | 400 | $28K | Apr 15 | — | SEC ↗ | |
| Chief Financial Officer | Sale | 6,257 | $433K | Apr 15 | — | SEC ↗ |
Earnings: last 7 quarters
Frequently asked questions
How many SEC Form 4 insider filings does IRON have?
Disc Medicine, Inc. (IRON) has 43 SEC Form 4 filings (136 transaction rows) in the rolling 365-day window, disclosed by 8 distinct insiders. Most recent filing: Oct 21, 2026.
When was the most recent SEC Form 4 filing for IRON?
The most recent Form 4 filing for IRON on Tracefour is dated Oct 21, 2026.
Who is the most active insider at IRON?
The most active SEC Form 4 filer at IRON in the rolling window is Director Bitterman Kevin, with 12 filings.
What is the net insider flow at IRON over the last 6 months?
Over the trailing 180 days, insiders at IRON have net sold $21.2M based on SEC Form 4 disclosures.
What is the total insider buy and sell value at IRON in the current window?
Inside the rolling window, insiders at IRON bought $0 and sold $109.9M based on SEC Form 4 filings.
Can I get alerts for IRON insider trading?
Yes. Tracefour sends a free email when a new SEC Form 4 purchase or sale is filed at Disc Medicine, Inc. (IRON). Alerts are set per company from the page itself, there is no paid tier, and each email links to the original filing on SEC EDGAR.
Related companies
Disc Medicine, Inc. is in the Healthcare sector.