IRON on Nasdaq

Disc Medicine, Inc.

Pharmaceutical preparations company, listed on Nasdaq (IRON).

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Last updated Oct 18, 2026.

Overview

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  • TickerIRON on Nasdaq
  • IndustryPharmaceutical Preparations
  • Business address321 Arsenal Street, Suite 101, Watertown, Ma 024722
  • Filer categoryLarge accelerated filer2

Financials

From the company’s reports to the SEC. Every number links to the filing it came from.

Financial statements

Operating income3456-$236.0M in 2025+593% since 2020
-$300.0M-$200.0M-$100.0M02020: -$34.0M-$34.0M20202021: -$30.9M-$30.9M2021−9%2022: -$47.5M-$47.5M2022+53%2023: -$91.1M-$91.1M2023+92%2024: -$129.7M-$129.7M2024+42%2025: -$236.0M-$236.0M2025+82%
Net income3456-$212.2M in 2025+420% since 2020
-$300.0M-$200.0M-$100.0M02020: -$40.8M-$40.8M20202021: -$36.0M-$36.0M2021−12%2022: -$46.8M-$46.8M2022+30%2023: -$76.4M-$76.4M2023+63%2024: -$109.4M-$109.4M2024+43%2025: -$212.2M-$212.2M2025+94%

Every line of the income statement as filed: the last 3 fiscal years, latest first.6

Period ending2025-12-312024-12-312023-12-31
Research and development$170.6M$96.7M$69.3M
Selling, general and administrative$65.4M$33.0M$21.9M
Total operating expenses$236.0M$129.7M$91.1M
Loss from operations-$236.0M-$129.7M-$91.1M
Interest income$27.8M$21.3M$14.8M
Interest expense-$3.6M-$572.0K$0
Other income (expense)$45.0K-$2.0K-$2.0K
Total other income (expense), net$24.2M$20.7M$14.8M
Loss before income taxes-$211.8M-$109.0M-$76.3M
Income tax expense-$361.0K-$355.0K-$99.0K
Net loss per share, basic-$6.01-$3.96-$3.42
Net loss per share, diluted-$6.01-$3.96-$3.42
Weighted-average common shares outstanding-basic35.3M shares27.6M shares22.3M shares
Weighted-average common shares outstanding-diluted35.3M shares27.6M shares22.3M shares
Net loss-$212.2M-$109.4M-$76.4M
Foreign currency translation adjustments-$1.0K-$27.0K$0
Unrealized gain on marketable securities$677.0K$316.0K$0
Total other comprehensive income$676.0K$289.0K$0
Comprehensive loss-$211.5M-$109.1M-$76.4M

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Leadership

Who has led Disc Medicine, Inc., and when. Pick a name to see everywhere that person has worked.

Board members and other officers (29)

Former names

  • Gemini Therapeutics, Inc. /DENov 27, 2020 to Dec 28, 20222
  • FS Development Corp.Jul 2, 2020 to Feb 8, 20212

Timeline

  1. Jan 3, 2023New chief executive John D. Quisel becomes CEO10
  2. Feb 10, 2021New chief executive Jason Patrick Meyenburg becomes CEO11

Filings

630 filings to the SEC since October 2021: 5 annual reports, 15 quarterly reports, 75 major events, 232 insider forms, 65 large holders, 238 other. The latest 20:

  1. Sep 16, 20264 EDGAR
  2. Sep 15, 20264 EDGAR
  3. Sep 11, 2026144 EDGAR
  4. Sep 10, 20268-K EDGAR
  5. Sep 9, 20264 EDGAR
  6. Sep 4, 2026144 EDGAR
  7. Sep 4, 2026144 EDGAR
  8. Sep 4, 2026144 EDGAR
  9. Sep 4, 2026144 EDGAR
  10. Sep 3, 2026144 EDGAR
  11. Sep 3, 2026144 EDGAR
  12. Sep 3, 2026144 EDGAR
  13. Sep 3, 2026144 EDGAR
  14. Sep 3, 20264 EDGAR
  15. Sep 2, 2026144 EDGAR
  16. Sep 2, 2026144 EDGAR
  17. Sep 2, 2026144 EDGAR
  18. Sep 2, 2026144 EDGAR
  19. Aug 26, 20264 EDGAR
  20. Aug 18, 20264 EDGAR

The 630 filings since October 2021 can be filtered by form type and year here when JavaScript is on.

Every filing from the last three years, summarized. The full record is on SEC EDGAR.

Insider trades and holders

Large holders

Investors who own more than 5% must tell the SEC: a 13D if they may seek to influence the company, a 13G if they hold passively. 65 such filings since October 2021, the latest 10:

  1. Aug 6, 2026SCHEDULE 13G/A
  2. Jan 7, 2026SCHEDULE 13G
  3. Dec 17, 2025SCHEDULE 13D/A
  4. Nov 5, 2025SCHEDULE 13G/A
  5. Oct 22, 2025SCHEDULE 13D/A
  6. Aug 15, 2025SCHEDULE 13D/A
  7. Aug 14, 2025SCHEDULE 13G/A
  8. Aug 12, 2025SCHEDULE 13G/A
  9. Aug 7, 2025SCHEDULE 13G/A
  10. May 15, 2025SCHEDULE 13G/A

From Forms 4 and Schedules 13D and 13G filed with the SEC.

Held by these funds

The largest holders among investment managers' 13F reports for the quarter ending Jun 30, 2026, the top 25 of 100. Change is in shares since the quarter before.

FundSharesValueShare of the fundChange
Fmr LLC4,894,473$358.0M0.0%−692,421
BlackRock, Inc.2,467,899$180.5M0.0%+194,068
Ra Capital Management, L.P.2,450,221$179.2M1.6%No change
Jpmorgan Chase & Co1,875,795$139.9M0.0%+504,315
Wellington Management Group Llp1,741,351$127.4M0.0%+5,975
State Street Corp1,648,836$120.6M0.0%−49,408
Vestal Point Capital, LP1,550,000$113.4M2.6%+850,000
Atlas Venture Life Science Advisors, LLC1,513,875$110.7M12.6%No change
Vanguard Capital Management LLC1,369,027$100.1M0.0%−6,403
Frazier Life Sciences Management, L.P.1,354,852$99.1M2.2%No change
TCG Crossover Management, LLC1,341,862$98.1M2.4%No change
Bvf Inc/il1,153,612$84.4M2.2%−118,700
Woodline Partners LP958,281$70.1M0.2%No change
Siren, L.L.C.888,401$65.0M1.3%−100,000
Logos Global Management LP875,000$64.0M2.8%+315,000
Opaleye Management Inc.855,000$62.5M5.7%+434,000
Geode Capital Management, LLC789,724$57.8M0.0%+45,502
Assenagon Asset Management S.A.768,316$56.2M0.0%+222,069
Deerfield Management Company, L.P.657,000$48.1M0.6%No change
Dimensional Fund Advisors LP569,018$41.6M0.0%+174,571
Bellevue Group AG560,000$41.0M0.9%+100,686
Saturn V Capital Management LP524,730$38.4M5.5%+74,804
Armistice Capital, LLC460,000$33.6M0.9%−76,000
Jennison Associates LLC439,520$32.1M0.0%−170,862
Aberdeen Group plc438,174$32.0M0.0%+62,560

13F reports cover disclosed long positions in U.S. stocks only.

Sources

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