Over the last 12 months, Disc Medicine insiders reported no purchases and 36 sales totaling $120.9M across SEC Form 4 filings. 67% of those filings were made under pre-arranged 10b5-1 trading plans.
Scroll the table sideways for price, value and marks.
| Date | Insider | Type | Shares | Avg price | Value | Δ stake | Marks |
|---|---|---|---|---|---|---|---|
| Sep 11, 2026 | Bitterman KevinD | ▼ Sale | 27,136 | $70.11 | $1.9M | -100% | — |
| Sep 4, 2026 | Bitterman KevinD | ▼ Sale | 1,689 | $79.96 | $135K | -11.2% | plan · 3 tranches · indirect |
| Sep 3, 2026 | Bitterman KevinD | ▼ Sale | 54,496 | $80.15 | $4.4M | -80.2% | plan · 12 tranches · indirect |
| Aug 25, 2026 | Yu Jonathan Yen-WenChief Operating Officer · O | ▼ Sale | 9,096 | $83.1 | $756K | -14.3% | plan · 2 tranches |
| Aug 17, 2026 | Quisel John DChief Executive Officer · O·D | ▼ Sale | 33,000 | $79.15 | $2.6M | -12.7% | plan · 3 tranches |
| Aug 12, 2026 | Yu Jonathan Yen-WenChief Operating Officer · O | ▼ Sale | 804 | $82.64 | $66K | -1.5% | plan |
| Aug 6, 2026 | Khara RahulChief Legal Officer · O | ▼ Sale | 5,000 | $80 | $400K | -8.7% | plan |
| Jul 13, 2026 | Quisel John DChief Executive Officer · O·D | ▼ Sale | 33,000 | $74.96 | $2.5M | -12.7% | plan · 3 tranches |
| Jul 7, 2026 | Yu Jonathan Yen-WenChief Operating Officer · O | ▼ Sale | 100 | $82.5 | $8K | -0.2% | plan |
| Jun 29, 2026 | Khara RahulChief Legal Officer · O | ▼ Sale | 2,500 | $75 | $188K | -4.6% | plan · 2 tranches |
| Jun 26, 2026 | Yu Jonathan Yen-WenChief Operating Officer · O | ▼ Sale | 300 | $72.5 | $22K | -0.5% | plan |
| Jun 22, 2026 | Yu Jonathan Yen-WenChief Operating Officer · O | ▼ Sale | 9,700 | $72.66 | $705K | -15.2% | plan |
| Jun 18, 2026 | Khara RahulChief Legal Officer · O | ▼ Sale | 7,500 | $70.22 | $527K | -12.6% | plan · 3 tranches |
| Jun 18, 2026 | Quisel John DChief Executive Officer · O·D | ▼ Sale | 34,000 | $70.21 | $2.4M | -13.1% | plan · 3 tranches |
| Jun 16, 2026 | Yu Jonathan Yen-WenChief Operating Officer · O | ▼ Sale | 18,612 | $69.19 | $1.3M | -25.5% | plan · 2 tranches |
| Apr 14, 2026 | Franchi Jean M.Chief Financial Officer · O | ▼ Sale | 6,657 | $69.23 | $461K | -9.4% | plan · 2 tranches |
| Apr 13, 2026 | Savage William JacobChief Medical Officer · O | ▼ Sale | 5,731 | $66.38 | $380K | -6.7% | plan · 2 tranches |
| Mar 2, 2026 | Savage William JacobChief Medical Officer · O | ▼ Sale | 7,378 | $65.88 | $486K | -8% | plan · 2 tranches |
| Feb 25, 2026 | Franchi Jean M.Chief Financial Officer · O | ▼ Sale | 353 | $69.06 | $24K | -0.5% | plan |
| Feb 18, 2026 | Franchi Jean M.Chief Financial Officer · O | ▼ Sale | 11,156 | $64.51 | $720K | -13.5% | plan · 3 tranches |
| Feb 17, 2026 | Khara RahulChief Legal Officer · O | ▼ Sale | 2,853 | $62.86 | $179K | -5.2% | — |
| Feb 17, 2026 | Stephenson PamelaChief Commercial Officer · O | ▼ Sale | 5,531 | $62.86 | $348K | -6.4% | — |
| Feb 17, 2026 | Savage William JacobChief Medical Officer · O | ▼ Sale | 3,256 | $62.86 | $205K | -3.4% | — |
| Feb 17, 2026 | Yu Jonathan Yen-WenChief Operating Officer · O | ▼ Sale | 3,231 | $62.86 | $203K | -5.6% | — |
| Feb 17, 2026 | Quisel John DChief Executive Officer · O·D | ▼ Sale | 13,264 | $62.86 | $834K | -5.5% | — |
| Jan 20, 2026 | Khara RahulChief Legal Officer · O | ▼ Sale | 1,000 | $69.74 | $70K | -2.6% | plan |
| Jan 2, 2026 | Khara RahulChief Legal Officer · O | ▼ Sale | 6,500 | $78.69 | $511K | -14.7% | plan · 3 tranches |
| Dec 17, 2025 | Bitterman KevinD | ▼ Sale | 754 | $91.47 | $69K | -5.1% | 3 tranches · indirect |
| Dec 16, 2025 | Bitterman KevinD | ▼ Sale | 177,123 | $91.55 | $16.2M | -92.6% | 18 tranches · indirect |
| Dec 15, 2025 | Savage William JacobChief Medical Officer · O | ▼ Sale | 13,093 | $91.22 | $1.2M | -14.7% | plan · 3 tranches |
| Dec 15, 2025 | Bitterman KevinD | ▼ Sale | 7,000 | $91.87 | $643K | -100% | — |
| Dec 11, 2025 | Quisel John DChief Executive Officer · O·D | ▼ Sale | 40,000 | $93.05 | $3.7M | -18.9% | plan · 4 tranches |
| Nov 11, 2025 | Yu Jonathan Yen-WenChief Operating Officer · O | ▼ Sale | 30,000 | $84.7 | $2.5M | -42.5% | plan · 4 tranches |
| Oct 22, 2025 | AI DMI LLC10% | ▼ Sale | 744,047 | $80.47 | $59.9M | -20.9% | — |
| Oct 17, 2025 | Bitterman KevinD | ▼ Sale | 93,585 | $85.97 | $8.0M | -19.5% | 17 tranches · indirect |
| Oct 8, 2025 | Bitterman KevinD | ▼ Sale | 90,000 | $70.14 | $6.3M | -15.2% | 7 tranches · indirect |
| Aug 22, 2025 | Bitterman KevinD | ▼ Sale | 2,287 | $61.03 | $140K | -0.4% | plan · indirect |
| Aug 14, 2025 | Bitterman KevinD | ▼ Sale | 32,174 | $61.11 | $2.0M | -5.1% | plan · 2 tranches · indirect |
The same Form 4 data over REST or MCP, already grouped into events with the plan flag and the dollar value read. A free key does 100 calls a day and needs no card. Prefer email? Disc Medicine filings can reach your inbox instead.
Corporate insiders — officers, directors and 10%+ owners — must report their trades to the SEC on Form 4 within two business days. This page shows open-market activity: purchases (code P), sales (S) and dispositions back to the issuer (D). Scheduled compensation events such as stock grants and option exercises are also filed on Form 4 but carry no trading signal, so they are not shown and counts here can be lower than the raw EDGAR filing total. We group each filing's transactions into one economic event (a laddered 10b5-1 sale is one event, not 25 rows), flag pre-arranged plans and late filings, and link every event to its AI-scored article in the $IRON feed.