Disc Medicine, Inc.
IRON
40 insider filings · Latest: Sep 15, 2026
Common Stock Transactions
| Txn Date | Accepted | Insider | Type | Shares | Avg Price | Value | Shares Owned | Filing |
|---|---|---|---|---|---|---|---|---|
| Oct 17, 2025 | Oct 17 9:26 PM | Atlas Venture Opportunity Fund II, L.P. | Proposed Sale | 35,000 | $89.94 | $3.1M | — | View → |
| Oct 17, 2025 | Oct 17 9:23 PM | Atlas Venture Opportunity Fund I, L.P. | Proposed Sale | 35,000 | $89.94 | $3.1M | — | View → |
| Oct 17, 2025 | Oct 17 8:42 PM | Atlas Venture Fund X, LP | Proposed Sale | 50,000 | $74.36 | $3.7M | — | View → |
| Oct 16, 2025 | Oct 16 8:46 PM | Atlas Venture Fund X, LP | Proposed Sale | 1,425 | $76.98 | $109.7K | — | View → |
| Oct 16, 2025 | Oct 16 8:46 PM | Atlas Venture Opportunity Fund I, L.P. | Proposed Sale | 1,425 | $76.98 | $109.7K | — | View → |
| Oct 15, 2025 | Oct 15 9:00 PM | Atlas Venture Fund X, LP | Proposed Sale | 22,160 | $73.00 | $1.6M | — | View → |
| Oct 15, 2025 | Oct 15 9:00 PM | Atlas Venture Opportunity Fund I, L.P. | Proposed Sale | 22,160 | $73.00 | $1.6M | — | View → |
| Oct 8, 2025 | Oct 8 8:55 PM | Atlas Venture Opportunity Fund I, L.P. | Proposed Sale | 71,961 | $67.89 | $4.9M | — | View → |
| Oct 7, 2025 | Oct 7 9:16 PM | Atlas Venture Opportunity Fund I, L.P. | Proposed Sale | 18,039 | $69.28 | $1.2M | — | View → |
| Aug 22, 2025 | Aug 22 8:29 PM | Atlas Venture Opportunity Fund I, L.P. | Proposed Sale | 2,287 | $59.75 | $136.6K | — | View → |
| Aug 22, 2025 | Aug 22 8:25 PM | Atlas Venture Fund X, L.P. | Proposed Sale | 4,080 | $59.75 | $243.8K | — | View → |
| Aug 14, 2025 | Aug 14 8:24 PM | Atlas Venture Opportunity Fund I, L.P. | Proposed Sale | 7,212 | $61.10 | $440.7K | — | View → |
| Aug 14, 2025 | Aug 14 8:16 PM | Atlas Venture Fund X, L.P. | Proposed Sale | 12,862 | $61.10 | $785.9K | — | View → |
| Aug 13, 2025 | Aug 13 8:26 PM | Atlas Venture Opportunity Fund I, L.P. | Proposed Sale | 24,962 | $59.03 | $1.5M | — | View → |
| Aug 13, 2025 | Aug 13 8:24 PM | Atlas Venture Fund X, L.P. | Proposed Sale | 44,520 | $59.03 | $2.6M | — | View → |
| Aug 5, 2025 | Aug 5 8:31 PM | Atlas Venture Opportunity Fund I, L.P. | Proposed Sale | 395 | $59.79 | $23.6K | — | View → |
| Aug 5, 2025 | Aug 5 8:24 PM | Atlas Venture Fund X, L.P. | Proposed Sale | 705 | $59.79 | $42.2K | — | View → |
| Jul 30, 2025 | Jul 30 8:18 PM | Atlas Venture Opportunity Fund I, L.P. | Proposed Sale | 8,492 | $59.80 | $507.8K | — | View → |
| Jul 30, 2025 | Jul 30 8:14 PM | Atlas Venture Fund X, L.P. | Proposed Sale | 15,146 | $59.80 | $905.7K | — | View → |
| Jul 24, 2025 | Jul 24 8:27 PM | Atlas Venture Opportunity Fund I, L.P. | Proposed Sale | 13,033 | $60.94 | $794.2K | — | View → |
Stock Options & Derivatives
| Txn Date | Accepted | Insider | Type | Shares | Exercise Price | Shares Owned | Filing |
|---|---|---|---|---|---|---|---|
| Sep 15, 2026 | Sep 16 10:44 PM | John D QuiselDirector, Chief Executive Officer | Option Exercise | 36,000 | $1.01 | 150,120(D) | View → |
| Sep 11, 2026 | Sep 15 8:30 PM | Kevin BittermanDirector | Option Exercise | 27,136 | $50.86 | 0(D) | View → |
| Aug 25, 2026 | Aug 27 12:10 AM | Jonathan Yen-Wen YuChief Operating Officer | Option Exercise | 8,796 | $13.50 | 13,847(D) | View → |
| Aug 24, 2026 | Aug 27 12:10 AM | Jonathan Yen-Wen YuChief Operating Officer | Option Exercise | 300 | $13.50 | 22,643(D) | View → |
| Aug 17, 2026 | Aug 18 10:56 PM | John D QuiselDirector, Chief Executive Officer | Option Exercise | 33,000 | $13.50 | 91,586(D) | View → |
| Aug 12, 2026 | Aug 14 11:14 PM | Jonathan Yen-Wen YuChief Operating Officer | Option Exercise | 804 | $13.50 | 22,943(D) | View → |
| Aug 6, 2026 | Aug 7 9:32 PM | Rahul KharaChief Legal Officer | Option Exercise | 5,000 | $14.69 | 49,804(D) | View → |
| Jul 13, 2026 | Jul 14 10:32 PM | John D QuiselDirector, Chief Executive Officer | Option Exercise | 33,000 | $13.50 | 124,586(D) | View → |
| Jul 7, 2026 | Jul 9 11:35 PM | Jonathan Yen-Wen YuChief Operating Officer | Option Exercise | 100 | $13.50 | 23,747(D) | View → |
| Jun 29, 2026 | Jun 30 9:49 PM | Rahul KharaChief Legal Officer | Option Exercise | 1,649 | $14.69 | 54,804(D) | View → |
| Jun 26, 2026 | Jun 30 9:49 PM | Rahul KharaChief Legal Officer | Option Exercise | 851 | $14.69 | 56,453(D) | View → |
| Jun 26, 2026 | Jun 30 9:45 PM | Jonathan Yen-Wen YuChief Operating Officer | Option Exercise | 300 | $13.50 | 23,847(D) | View → |
| Jun 22, 2026 | Jun 25 12:34 AM | Jonathan Yen-Wen YuChief Operating Officer | Option Exercise | 9,700 | $13.50 | 24,147(D) | View → |
| Jun 18, 2026 | Jun 23 9:21 PM | Rahul KharaChief Legal Officer | Option Exercise | 7,500 | $14.69 | 57,304(D) | View → |
| Jun 18, 2026 | Jun 23 9:16 PM | John D QuiselDirector, Chief Executive Officer | Option Exercise | 34,000 | $9.86 | 41,375(D) | View → |
| Jun 18, 2026 | Jun 23 9:04 PM | William Richard WhiteDirector | Grant/Award | 6,212 | $70.79 | 6,212(D) | View → |
| Jun 18, 2026 | Jun 23 9:01 PM | Liam RatcliffeDirector | Grant/Award | 6,212 | $70.79 | 6,212(D) | View → |
| Jun 18, 2026 | Jun 23 9:00 PM | Donald William NicholsonDirector | Grant/Award | 6,212 | $70.79 | 6,212(D) | View → |
| Jun 18, 2026 | Jun 23 8:59 PM | Georges GemayelDirector | Grant/Award | 6,212 | $70.79 | 6,212(D) | View → |
| Jun 18, 2026 | Jun 23 8:58 PM | Mark ChinDirector | Grant/Award | 6,212 | $70.79 | 6,212(D) | View → |
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