Companies / Disc Medicine, Inc.
Disc Medicine, Inc.
Nasdaq: IRONCIK 1816736WATERTOWN, MA
Financials
Ownership
38.4M shares outstanding · as of Jul 23, 2026
Ownership
| Insiders | 1.48% | 569,760 |
| Institutions | 105.23% | 40,401,944 |
| Public float | 0.00% | 0 |
Reported holdings exceed shares outstanding — public float shown as 0; some positions may overlap or lag.
% of common shares outstanding (exact, from the latest cover-page filing). Institutions are quarterly 13F snapshots; insiders reflect current officers & directors.
Insiders 7
View all →| Insider | % of shares | Shares |
|---|---|---|
Quisel John DCEOChief Executive Officer · Director | 0.59% | 226,064 |
Savage William JacobChief Medical Officer | 0.22% | 85,211 |
Stephenson PamelaChief Commercial Officer | 0.21% | 80,998 |
Franchi Jean M.Chief Financial Officer | 0.18% | 70,990 |
Yu Jonathan Yen-WenChief Operating Officer | 0.14% | 54,324 |
Khara RahulChief Legal Officer | 0.14% | 52,173 |
Gemayel GeorgesDirector | — | — |
Institutional holders 199
View all →| Holder | Value | % of shares |
|---|---|---|
| $432.80M | 14.20% | |
| $180.50M | 6.43% | |
| $156.67M | 6.38% | |
| $140.37M | 4.60% | |
| $125.56M | 4.12% | |
| $120.60M | 4.29% | |
| $120.57M | 3.95% | |
| $120.22M | 3.94% | |
| $100.06M | 3.28% | |
| $81.35M | 3.31% |
Activity
Jun 30, 2026View all →
InsidersInstitutions
Who's accumulating and trimming this stock (13F).| Date | Actor | Action | Security | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|---|
| Q1 2026 as of | Bvf INC/IL 13F manager | Add | Common Stock | $39.79M | +622K +95.74% | 1,272,312 3.31% of shares | medium |
| Q1 2026 as of | Perceptive Advisors LLC 13F manager | Exit | Common Stock | $-35.79M | -451K -100.00% | — | medium |
| Q2 2026 as of | State Street Corporation 13F manager | Add | Common Stock | $33.71M | +461K +38.79% | 1,648,836 4.29% of shares | medium |
| Q1 2026 as of | RA Capital Management, L.P. 13F manager | Add | Common Stock | $30.31M | +474K +23.99% | 2,450,221 6.38% of shares | medium |
| Q1 2026 as of | Great Point Partners, LLC 13F manager | Exit | Common Stock | $-19.85M | -250K -100.00% | — | medium |
| Q1 2026 as of | Balyasny Asset Management L.P. 13F manager | Exit | Common Stock | $-17.61M | -222K -100.00% | — | medium |
| Q1 2026 as of | TimesSquare Capital Management, LLC 13F manager | Exit | Common Stock | $-14.91M | -188K -100.00% | — | medium |
| Q2 2026 as of | BlackRock, Inc. 13F manager | Add | Common Stock | $14.11M | +193K +8.48% | 2,467,899 6.43% of shares | medium |
5%+ ownership events
Schedule 13D / 13G
| Filer | Stance | % of class |
|---|---|---|
| RA Capital Management, L.P. | Passive13G | — |
Securities
via CUSIP / OpenFIGI
| Symbol | Type | CUSIP |
|---|---|---|
| IRON | Common Stock | 254604101 |