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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, Q2 2025

Institutional positions in Disc Medicine, Inc. as of Jun 30, 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
152
−4 vs. Q1 2025
Shares held
34.1M
+915.4K (+2.8%) vs. Q1 2025
Total value
$1.80B
+$154.6M (+9.4%) vs. Q1 2025
New holders
26
69 more added
Sold out
30
37 more reduced

1 institution that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2025: 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 holdersQ2 2025: 152 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 heldQ2 2025: $1.80B
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, Q2 2025

Shares, value and share of portfolio for each institution holding Disc Medicine, Inc.; share changes are against Q1 2025.

Institutions holding IRON in Q2 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Profund Advisors LLC6,714$355.6K0.01%−446−6.2%Reduced
Voya Investment Management LLC6,695$354.6K0.00%+744+12.5%Added
Arizona State Retirement System6,534$346.0K0.00%+1,219+22.9%Added
ProShare Advisors LLC6,345$336.0K0.00%−155−2.4%Reduced
Teacher Retirement System of Texas6,017$318.7K0.00%+1,052+21.2%Added
Police & Firemen's Retirement System of New Jersey5,490$290.8K0.00%+600+12.3%Added
BNP Paribas Arbitrage, SA4,703$249.1K0.00%−5,583−54.3%Reduced
KLP Kapitalforvaltning AS4,600$243.6K0.00%+900+24.3%Added
DnB Asset Management AS4,583$242.7K0.00%+4,583New
Fiduciary Trust Co4,051$214.5K0.00%00.0%Unchanged
Tower Research Capital LLC (TRC)3,975$210.5K0.01%+3,152+383.0%Added
Zurcher Kantonalbank (Zurich Cantonalbank)3,047$161.4K0.00%−29−0.9%Reduced
Ameritas Investment Partners, Inc.2,515$133.2K0.00%+206+8.9%Added
Meeder Asset Management Inc2,244$118.8K0.01%+2,244New
STRS Ohio2,200$116.5K0.00%−4,800−68.6%Reduced
Virtus Investment Advisers, Inc.1,784$94.5K0.03%−772−30.2%Reduced
Mirae Asset Global Investments Co., Ltd.1,338$70.9K0.00%+181+15.6%Added
US Bancorp1,179$62.4K0.00%−24−2.0%Reduced
Avanza Fonder AB1,083$57.4K0.00%+1,083New
CWM, LLC1,044$55.0K0.00%+711+213.5%Added
Amalgamated Bank787$42.0K0.00%00.0%Unchanged
GF Fund Management Co. Ltd.762$40.4K0.00%00.0%Unchanged
Public Employees Retirement Association of Colorado730$39.0K0.00%00.0%Unchanged
Steward Partners Investment Advisory, LLC533$28.2K0.00%+8+1.5%Added
Quest Partners LLC327$17.3K0.00%00.0%Unchanged
iA Global Asset Management Inc.322$17.0K0.00%+322New
Nisa Investment Advisors, LLC284$15.0K0.00%+203+250.6%Added
Advisor Group Holdings, Inc.270$14.3K0.00%+270New
GAMMA Investing LLC240$12.7K0.00%−10−4.0%Reduced
BNP PARIBAS ASSET MANAGEMENT Holding S.A.202$11.0K0.00%+202New
Simplex Trading, LLC199$10.0K0.00%−1,641−89.2%Reduced
Clearstead Advisors, LLC148$7.84K0.00%+102+221.7%Added
Daiwa Securities Group Inc.113$6.00K0.00%00.0%Unchanged
Larson Financial Group LLC109$5.77K0.00%+109New
EverSource Wealth Advisors, LLC72$3.81K0.00%+62+620.0%Added
Sterling Capital Management LLC60$3.18K0.00%−292−83.0%Reduced
Rothschild Investment LLC45$2.38K0.00%00.0%Unchanged
Comerica Bank25$1.33K0.00%+8+47.1%Added
IFP Advisors, Inc0$1.17K0.00%−1−100.0%Reduced
Parkside Financial Bank & Trust20$1.06K0.00%+20New
Versant Capital Management, Inc19$1.01K0.00%+19New
Bessemer Group Inc12$1.00K0.00%00.0%Unchanged
Russell Investments Group, Ltd.16$8470.00%+6+60.0%Added
Assetmark, Inc12$6360.00%00.0%Unchanged
J.Safra Asset Management Corp6$3180.00%00.0%Unchanged
SBI Securities Co., Ltd.6$3180.00%00.0%Unchanged
Allworth Financial LP4$2120.00%+4New
Essential Partners LLC4$2120.00%+4New
Caitong International Asset Management Co., Ltd3$1590.00%−944−99.7%Reduced
Global Retirement Partners, LLC3$1590.00%+3New
True Wealth Design, LLC1$530.00%−6−85.7%Reduced
Covestor Ltd2$00.00%00.0%Unchanged
Silverarc Capital Management, LLC0$00.00%−236,471−100.0%Sold out
D. E. Shaw & Co., Inc.0$00.00%−219,603−100.0%Sold out
Perceptive Advisors LLC0$00.00%−150,000−100.0%Sold out
Pictet Asset Management Holding SA0$00.00%−130,386−100.0%Sold out
Suvretta Capital Management, LLC0$00.00%−80,000−100.0%Sold out
Citadel Advisors LLC0$00.00%−62,214−100.0%Sold out
Twinbeech Capital LP0$00.00%−45,448−100.0%Sold out
Ghisallo Capital Management LLC0$00.00%−25,000−100.0%Sold out
Atom Investors LP0$00.00%−22,561−100.0%Sold out
Engineers Gate Manager LP0$00.00%−16,810−100.0%Sold out
Algert Global LLC0$00.00%−16,337−100.0%Sold out
SG Americas Securities, LLC0$00.00%−14,329−100.0%Sold out
Aquatic Capital Management LLC0$00.00%−12,188−100.0%Sold out
Corebridge Financial, Inc.0$00.00%−11,180−100.0%Sold out
Trexquant Investment LP0$00.00%−8,556−100.0%Sold out
Quantbot Technologies LP0$00.00%−7,565−100.0%Sold out
Schonfeld Strategic Advisors LLC0$00.00%−7,552−100.0%Sold out
Virginia Retirement Systems Et Al0$00.00%−5,800−100.0%Sold out
CIBC World Markets Corp0$00.00%−5,064−100.0%Sold out
Verition Fund Management LLC0$00.00%−4,279−100.0%Sold out
Graham Capital Management, L.P.0$00.00%−4,217−100.0%Sold out
Aster Capital Management (DIFC) Ltd0$00.00%−577−100.0%Sold out
Coldstream Capital Management Inc0$00.00%−46−100.0%Sold out
Fortitude Family Office, LLC0$00.00%−20−100.0%Sold out
Signaturefd, LLC0$00.00%−18−100.0%Sold out
Wolff Wiese Magana LLC0$00.00%−14−100.0%Sold out
Stephens Consulting, LLC0$00.00%−10−100.0%Sold out
CoreCap Advisors, LLC0$00.00%−9−100.0%Sold out
Amundi0$00.00%−5−100.0%Sold out
Parallel Advisors, LLC0$00.00%−4−100.0%Sold out
Lindbrook Capital, LLC––––Not filed