Who
John D. Quisel
Director
Company insider
Files Form 4 as: Director, Gossamer Bio; Chief Executive Officer, Disc Medicine; EVP, Chief Business Officer, Acceleron Pharma.
In numbers
- Trades disclosed
- 272
- Buys
- 0
- Sells
- 42
- Bought
- $0
- Sold
- $33.6M
- Companies
- 3
- Companies where not an officer
- 1
- First trade
- 5 Dec 2013
- Last trade
- 23 Sep 2026
- Last filed
- 25 Sep 2026
Companies traded
Activity over time
1 Nov 2024 – 1 Oct 2026
Buys above the line, sells below, each month.
Every trade
| Traded | Company | What | Amount | |
|---|---|---|---|---|
| 23 Sep 2026filed 25 Sep 2026 | GOSS Gossamer Biooption or derivative · Biotechnology | SEC FORM 4 Code A | —10,000 at $0.00 | filing |
| 23 Sep 2026filed 25 Sep 2026 | GOSS Gossamer Biooption or derivative · Biotechnology | SEC FORM 4 Code A | —10,000 at $0.00 | filing |
| 15 Sep 2026filed 16 Sep 2026 | IRON Disc MedicineBiotechnology | SEC FORM 4 Code M | $36K36,000 at $1.01 | filing |
| 15 Sep 2026filed 16 Sep 2026 | IRON Disc Medicineoption or derivative · Biotechnology | SEC FORM 4 Code M | —36,000 at $0.00 | filing |
| 15 Sep 2026filed 16 Sep 2026 | IRON Disc Medicineoption or derivative · Biotechnology | SEC FORM 4 Code M | —36,000 at $0.00 | filing |
| 15 Sep 2026filed 16 Sep 2026 | IRON Disc MedicineBiotechnology | SEC FORM 4 Code M | $36K36,000 at $1.01 | filing |
| 17 Aug 2026filed 18 Aug 2026 | IRON Disc MedicineBiotechnology | SEC FORM 4 Code M | $446K33,000 at $13.50 | filing |
| 17 Aug 2026filed 18 Aug 2026 | IRON Disc MedicineBiotechnology | SEC FORM 4 Sold | $656K8,400 at $78.11 | filing |
| 17 Aug 2026filed 18 Aug 2026 | IRON Disc MedicineBiotechnology | SEC FORM 4 Sold | $1.0M12,712 at $79.20 | filing |
| 17 Aug 2026filed 18 Aug 2026 | IRON Disc Medicineoption or derivative · Biotechnology | SEC FORM 4 Code M | —33,000 at $0.00 | filing |
| 17 Aug 2026filed 18 Aug 2026 | IRON Disc MedicineBiotechnology | SEC FORM 4 Sold | $949K11,888 at $79.84 | filing |
| 17 Aug 2026filed 18 Aug 2026 | IRON Disc Medicineoption or derivative · Biotechnology | SEC FORM 4 Code M | —33,000 at $0.00 | filing |
| 17 Aug 2026filed 18 Aug 2026 | IRON Disc MedicineBiotechnology | SEC FORM 4 Code M | $446K33,000 at $13.50 | filing |
| 17 Aug 2026filed 18 Aug 2026 | IRON Disc MedicineBiotechnology | SEC FORM 4 Sold | $656K8,400 at $78.11 | filing |
| 17 Aug 2026filed 18 Aug 2026 | IRON Disc MedicineBiotechnology | SEC FORM 4 Sold | $1.0M12,712 at $79.20 | filing |
| 17 Aug 2026filed 18 Aug 2026 | IRON Disc MedicineBiotechnology | SEC FORM 4 Sold | $949K11,888 at $79.84 | filing |
| 13 Jul 2026filed 14 Jul 2026 | IRON Disc MedicineBiotechnology | SEC FORM 4 Code M | $252K25,584 at $9.86 | filing |
| 13 Jul 2026filed 14 Jul 2026 | IRON Disc MedicineBiotechnology | SEC FORM 4 Code M | $100K7,416 at $13.50 | filing |
| 13 Jul 2026filed 14 Jul 2026 | IRON Disc MedicineBiotechnology | SEC FORM 4 Sold | $721K9,704 at $74.27 | filing |
| 13 Jul 2026filed 14 Jul 2026 | IRON Disc Medicineoption or derivative · Biotechnology | SEC FORM 4 Code M | —25,584 at $0.00 | filing |
News
Disc Medicine (NASDAQ:IRON) Director Sells 10,994 Shares of StockIRON · themarketsdaily.com · 21 Oct 2026Disc Medicine Prices $450 Mln Offering Of Shares At $75/shr To Fund Pipeline DevelopmentIRON · finanzen.ch · 21 Oct 2026Disc Medicine Launches $350M Stock Offering Following Positive Phase 3 ResultsIRON · rttnews.com · 20 Oct 2026
0 headlines in the last 90 days name John D. Quisel; 3 articles from the last 14 days about the 1 company they traded most, at most three about any one of them.