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Disc Medicine, Inc.

IRON
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001816736

In the last 90 days, Disc Medicine, Inc. insiders filed 0 open-market purchases and 9 sales; 216 institutions reported holding it in 13F filings for Q2 2026, worth $3.13B in total; no superinvestor holds it.

13F holders, Q1 2025

Institutional positions in Disc Medicine, Inc. as of Mar 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
157
+6 vs. Q4 2024
Shares held
33.2M
+6.63M (+25.0%) vs. Q4 2024
Total value
$1.65B
−$31.7M (−1.9%) vs. Q4 2024
New holders
27
74 more added
Sold out
21
31 more reduced

1 institution that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2024: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting IRON on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2025: 157 institutions
Q1 2021: 49 institutionsQ2 2021: 55 institutionsQ3 2021: 62 institutionsQ4 2021: 62 institutionsQ1 2022: 57 institutionsQ2 2022: 51 institutionsQ3 2022: 44 institutionsQ4 2022: 35 institutionsQ1 2023: 45 institutionsQ2 2023: 90 institutionsQ3 2023: 91 institutionsQ4 2023: 112 institutionsQ1 2024: 130 institutionsQ2 2024: 121 institutionsQ3 2024: 132 institutionsQ4 2024: 152 institutionsQ1 2025: 157 institutionsQ2 2025: 152 institutionsQ3 2025: 168 institutionsQ4 2025: 197 institutionsQ1 2026: 203 institutionsQ2 2026: 216 institutions
Value heldQ1 2025: $1.65B
Q1 2021: $346.6MQ2 2021: $165.3MQ3 2021: $103.5MQ4 2021: $93.8MQ1 2022: $39.6MQ2 2022: $43.8MQ3 2022: $43.9MQ4 2022: $215.8MQ1 2023: $309.6MQ2 2023: $848.7MQ3 2023: $934.0MQ4 2023: $1.17BQ1 2024: $1.38BQ2 2024: $1.24BQ3 2024: $1.35BQ4 2024: $1.68BQ1 2025: $1.65BQ2 2025: $1.80BQ3 2025: $2.26BQ4 2025: $3.04BQ1 2026: $2.67BQ2 2026: $3.13B
Institutions holding IRON and their total value by quarter
QuarterHoldersValue
Q2 2026216$3.13B
Q1 2026203$2.67B
Q4 2025197$3.04B
Q3 2025168$2.26B
Q2 2025152$1.80B
Q1 2025157$1.65B
Q4 2024152$1.68B
Q3 2024132$1.35B
Q2 2024121$1.24B
Q1 2024130$1.38B
Q4 2023112$1.17B
Q3 202391$934.0M
Q2 202390$848.7M
Q1 202345$309.6M
Q4 202235$215.8M
Q3 202244$43.9M
Q2 202251$43.8M
Q1 202257$39.6M
Q4 202162$93.8M
Q3 202162$103.5M
Q2 202155$165.3M
Q1 202149$346.6M

Institutions, Q1 2025

Shares, value and share of portfolio for each institution holding Disc Medicine, Inc.; share changes are against Q4 2024.

Institutions holding IRON in Q1 2025
InstitutionSharesValue% of portfolioChange in sharesAction
ProShare Advisors LLC6,500$322.7K0.00%−466−6.7%Reduced
HighVista Strategies LLC6,458$320.6K0.12%00.0%Unchanged
Universal- Beteiligungs- und Servicegesellschaft mbH6,391$317.2K0.00%+6,391New
New York State Common Retirement Fund6,276$311.5K0.00%00.0%Unchanged
Voya Investment Management LLC5,951$295.4K0.00%+89+1.5%Added
Bank of Montreal5,851$290.4K0.00%+5,851New
Virginia Retirement Systems Et Al5,800$287.9K0.00%+5,800New
Arizona State Retirement System5,315$263.8K0.00%+590+12.5%Added
CIBC World Markets Corp5,064$251.4K0.00%+5,064New
Teacher Retirement System of Texas4,965$246.5K0.00%+108+2.2%Added
Police & Firemen's Retirement System of New Jersey4,890$242.7K0.00%+783+19.1%Added
Verition Fund Management LLC4,279$212.4K0.00%+4,279New
Graham Capital Management, L.P.4,217$209.3K0.01%+4,217New
Fiduciary Trust Co4,051$201.1K0.00%00.0%Unchanged
State Board of Administration of Florida Retirement System4,050$201.0K0.00%00.0%Unchanged
KLP Kapitalforvaltning AS3,700$183.7K0.00%00.0%Unchanged
Zurcher Kantonalbank (Zurich Cantonalbank)3,076$152.7K0.00%+209+7.3%Added
Virtus Investment Advisers, Inc.2,556$126.9K0.03%+2,556New
Ameritas Investment Partners, Inc.2,309$114.6K0.00%+310+15.5%Added
Simplex Trading, LLC1,840$91.0K0.00%+1,840New
Mirae Asset Global Investments Co., Ltd.1,157$60.6K0.00%+165+16.6%Added
US Bancorp1,203$59.7K0.00%+27+2.3%Added
Royal Bank of Canada1,198$59.0K0.00%−1,248−51.0%Reduced
Caitong International Asset Management Co., Ltd947$47.0K0.03%+940+13,428.6%Added
Tower Research Capital LLC (TRC)823$40.9K0.00%−2−0.2%Reduced
Amalgamated Bank787$39.0K0.00%+219+38.6%Added
GF Fund Management Co. Ltd.762$37.8K0.00%+137+21.9%Added
Public Employees Retirement Association of Colorado730$36.0K0.00%00.0%Unchanged
Aster Capital Management (DIFC) Ltd577$32.4K0.01%+523+968.5%Added
Steward Partners Investment Advisory, LLC525$26.1K0.00%00.0%Unchanged
Sterling Capital Management LLC352$17.5K0.00%−214−37.8%Reduced
CWM, LLC333$17.0K0.00%+253+316.3%Added
Quest Partners LLC327$16.2K0.00%−302−48.0%Reduced
GAMMA Investing LLC250$12.4K0.00%+11+4.6%Added
Daiwa Securities Group Inc.113$6.00K0.00%00.0%Unchanged
Nisa Investment Advisors, LLC81$4.02K0.00%−2−2.4%Reduced
Lindbrook Capital, LLC58$2.88K0.00%+58New
Clearstead Advisors, LLC46$2.28K0.00%00.0%Unchanged
Coldstream Capital Management Inc46$2.28K0.00%+46New
Rothschild Investment LLC45$2.23K0.00%+15+50.0%Added
Bessemer Group Inc12$1.00K0.00%−13−52.0%Reduced
Fortitude Family Office, LLC20$9930.00%00.0%Unchanged
Signaturefd, LLC18$8940.00%+18New
Comerica Bank17$8390.00%+2+13.3%Added
Wolff Wiese Magana LLC14$6950.00%00.0%Unchanged
Assetmark, Inc12$5960.00%+12New
Stephens Consulting, LLC10$4970.00%+10New
Russell Investments Group, Ltd.10$4960.00%00.0%Unchanged
EverSource Wealth Advisors, LLC10$4960.00%+10New
CoreCap Advisors, LLC9$4470.00%−19−67.9%Reduced
True Wealth Design, LLC7$3480.00%+6+600.0%Added
SBI Securities Co., Ltd.6$2980.00%00.0%Unchanged
J.Safra Asset Management Corp6$2980.00%+6New
Amundi5$2290.00%00.0%Unchanged
Parallel Advisors, LLC4$1990.00%+3+300.0%Added
IFP Advisors, Inc1$500.00%00.0%Unchanged
Covestor Ltd2$00.00%00.0%Unchanged
MPM Oncology Impact Management LP0$00.00%−346,401−100.0%Sold out
Catalio Capital Management, LP0$00.00%−179,815−100.0%Sold out
PDT Partners, LLC0$00.00%−25,778−100.0%Sold out
Jane Street Group, LLC0$00.00%−21,203−100.0%Sold out
Cubist Systematic Strategies, LLC0$00.00%−20,187−100.0%Sold out
Point72 Asset Management, L.P.0$00.00%−13,444−100.0%Sold out
Tudor Investment Corp Et Al0$00.00%−13,353−100.0%Sold out
Fred Alger Management, LLC0$00.00%−11,775−100.0%Sold out
Jump Financial, LLC0$00.00%−11,507−100.0%Sold out
HRT Financial LP0$00.00%−10,358−100.0%Sold out
Bleakley Financial Group, LLC0$00.00%−7,667−100.0%Sold out
Brevan Howard Capital Management LP0$00.00%−6,213−100.0%Sold out
Virtu Financial LLC0$00.00%−4,875−100.0%Sold out
Bayesian Capital Management, LP0$00.00%−4,497−100.0%Sold out
ADAR1 Capital Management, LLC0$00.00%−4,196−100.0%Sold out
Point72 (DIFC) Ltd0$00.00%−1,176−100.0%Sold out
Virtus ETF Advisers LLC0$00.00%−1,106−100.0%Sold out
Advisor Group Holdings, Inc.0$00.00%−417−100.0%Sold out
Group One Trading, L.P.0$00.00%−400−100.0%Sold out
Larson Financial Group LLC0$00.00%−68−100.0%Sold out
Skopos Labs, Inc.0$00.00%−29−100.0%Sold out
Nuveen Asset Management, LLC––––Not filed