IRON Disc Medicine, Inc.
Disc Medicine, Inc. (IRON) Insider Activity
What the officers, directors and large holders did with their own shares. Only open-market purchases and sales count toward the totals — grants, option exercises and shares withheld for tax are compensation mechanics, not decisions, and they're listed separately below.
How much of that selling was preplanned? 21% planned / 79% discretionary
Largest single sale: $59.9M.
Where they traded
No open-market insider purchase on record.
Recent open-market activity
| Date | Insider | Role | Action | Shares | Price | Value | Held after |
|---|---|---|---|---|---|---|---|
| Bitterman Kevin | Director | Sell | 27,136 | $70.11 | $1.9M | None left | |
| Bitterman Kevin 3 fills | Director | Sell 10b5-1 | 1,689 | $79.96 | $135.1K | 318,866 −0.5% of holding | |
| Bitterman Kevin 3 fills | Director | Sell 10b5-1 | 5,203 | $79.98 | $416.1K | 319,778 −1.6% of holding | |
| Bitterman Kevin 6 fills | Director | Sell 10b5-1 | 49,164 | $80.17 | $3.9M | 322,598 −13.2% of holding | |
| Bitterman Kevin 3 fills | Director | Sell 10b5-1 | 129 | $79.95 | $10.3K | 349,140 −0% of holding | |
| Yu Jonathan Yen-Wen | Chief Operating Officer | Sell 10b5-1 | 8,796 | $83.12 | $731.1K | 54,324 −13.9% of holding | |
| Yu Jonathan Yen-Wen | Chief Operating Officer | Sell 10b5-1 | 300 | $82.53 | $24.8K | 54,324 −0.5% of holding | |
| Quisel John D 3 fills | Chief Executive Officer | Sell 10b5-1 | 33,000 | $79.15 | $2.6M | 250,664 −11.6% of holding | |
| Yu Jonathan Yen-Wen | Chief Operating Officer | Sell 10b5-1 | 804 | $82.64 | $66.4K | 54,324 −1.5% of holding | |
| Khara Rahul | Chief Legal Officer | Sell 10b5-1 | 5,000 | $80.00 | $400.0K | 52,324 −8.7% of holding | |
| Quisel John D 3 fills | Chief Executive Officer | Sell 10b5-1 | 33,000 | $74.96 | $2.5M | 249,360 −11.7% of holding | |
| Yu Jonathan Yen-Wen | Chief Operating Officer | Sell 10b5-1 | 100 | $82.50 | $8.3K | 54,324 −0.2% of holding | |
| Khara Rahul | Chief Legal Officer | Sell 10b5-1 | 1,649 | $75.00 | $123.7K | 52,173 −3.1% of holding | |
| Khara Rahul | Chief Legal Officer | Sell 10b5-1 | 851 | $75.00 | $63.8K | 52,173 −1.6% of holding | |
| Yu Jonathan Yen-Wen | Chief Operating Officer | Sell 10b5-1 | 300 | $72.50 | $21.8K | 54,324 −0.5% of holding | |
| Yu Jonathan Yen-Wen | Chief Operating Officer | Sell 10b5-1 | 9,700 | $72.66 | $704.8K | 54,324 −15.2% of holding | |
| Quisel John D 3 fills | Chief Executive Officer | Sell 10b5-1 | 34,000 | $70.21 | $2.4M | 237,137 −12.5% of holding | |
| Khara Rahul 3 fills | Chief Legal Officer | Sell 10b5-1 | 7,500 | $70.22 | $526.7K | 54,273 −12.1% of holding | |
| Yu Jonathan Yen-Wen 2 fills | Chief Operating Officer | Sell 10b5-1 | 18,612 | $69.19 | $1.3M | 61,285 −23.3% of holding | |
| Franchi Jean M. | Chief Financial Officer | Sell 10b5-1 | 6,257 | $69.24 | $433.2K | 64,333 −8.9% of holding | |
| Savage William Jacob 2 fills | Chief Medical Officer | Sell 10b5-1 | 5,731 | $66.38 | $380.4K | 81,680 −6.6% of holding | |
| Franchi Jean M. | Chief Financial Officer | Sell 10b5-1 | 400 | $69.00 | $27.6K | 70,590 −0.6% of holding | |
| Savage William Jacob 2 fills | Chief Medical Officer | Sell 10b5-1 | 7,378 | $65.88 | $486.1K | 88,197 −7.7% of holding | |
| Franchi Jean M. | Chief Financial Officer | Sell 10b5-1 | 353 | $69.06 | $24.4K | 70,990 −0.5% of holding | |
| Franchi Jean M. 2 fills | Chief Financial Officer | Sell 10b5-1 | 7,081 | $65.47 | $463.6K | 75,027 −8.6% of holding | |
| Quisel John D | Chief Executive Officer | Sell | 13,264 | $62.86 | $833.8K | 226,064 −5.5% of holding | |
| Stephenson Pamela | Chief Commercial Officer | Sell | 5,531 | $62.86 | $347.7K | 80,998 −6.4% of holding | |
| Franchi Jean M. | Chief Financial Officer | Sell | 4,075 | $62.86 | $256.2K | 78,424 −4.9% of holding | |
| Savage William Jacob | Chief Medical Officer | Sell | 3,256 | $62.86 | $204.7K | 92,589 −3.4% of holding | |
| Yu Jonathan Yen-Wen | Chief Operating Officer | Sell | 3,231 | $62.86 | $203.1K | 54,324 −5.6% of holding | |
| Khara Rahul | Chief Legal Officer | Sell | 2,853 | $62.86 | $179.3K | 52,173 −5.2% of holding | |
| Khara Rahul | Chief Legal Officer | Sell 10b5-1 | 1,000 | $69.74 | $69.7K | 37,793 −2.6% of holding | |
| Khara Rahul 3 fills | Chief Legal Officer | Sell 10b5-1 | 6,500 | $78.69 | $511.5K | 43,943 −12.9% of holding | |
| Bitterman Kevin 3 fills | Director | Sell | 754 | $91.47 | $69.0K | 349,210 −0.2% of holding | |
| Bitterman Kevin 3 fills | Director | Sell | 68,923 | $91.24 | $6.3M | 349,603 −16.5% of holding | |
| Bitterman Kevin 7 fills | Director | Sell | 69,693 | $91.34 | $6.4M | 389,422 −15.2% of holding | |
| Savage William Jacob 3 fills | Chief Medical Officer | Sell 10b5-1 | 13,093 | $91.22 | $1.2M | 85,153 −13.3% of holding | |
| Bitterman Kevin 9 fills | Director | Sell | 45,507 | $92.39 | $4.2M | 425,633 −9.7% of holding | |
| Quisel John D 4 fills | Chief Executive Officer | Sell 10b5-1 | 40,000 | $93.05 | $3.7M | 209,409 −16% of holding | |
| Yu Jonathan Yen-Wen 4 fills | Chief Operating Officer | Sell 10b5-1 | 30,000 | $84.70 | $2.5M | 62,540 −32.4% of holding | |
| Sell | 744,047 | $80.47 | $59.9M | 2,814,379 −20.9% of holding | |||
| Bitterman Kevin 14 fills | Director | Sell | 70,000 | $88.91 | $6.2M | 475,911 −12.8% of holding | |
| Bitterman Kevin | Director | Sell | 1,425 | $77.11 | $109.9K | 477,036 −0.3% of holding | |
| Bitterman Kevin 2 fills | Director | Sell | 22,160 | $77.23 | $1.7M | 481,079 −4.4% of holding | |
| Bitterman Kevin 5 fills | Director | Sell | 71,961 | $70.58 | $5.1M | 564,363 −11.3% of holding | |
| Bitterman Kevin 2 fills | Director | Sell | 18,039 | $68.38 | $1.2M | 579,243 −3% of holding |
Form 4s are due within two business days of a transaction, so this is close to real time — unlike the quarterly 13F data on the Institutional tab. A single large sale often reflects a prearranged 10b5-1 plan rather than a fresh view, so read a pattern of sales rather than any one of them.