13F

Stock

Disc Medicine, Inc.

IRON · held by 197 managers

Reported value

$2.89B

Holders

197

+3 new · −1 exited

Holders’ est. mark

$3.89M

Price effect on 6 books still in the name

Largest holder

$432.8M

Fidelity

Notable conviction

Share of each notable manager’s 13F book.

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
Fidelity5.45M$432.8MHeld
BlackRock, Inc.2.27M$180.7MHeld
RA CAPITAL MANAGEMENT, L.P.1.98M$156.9MHeld
Vanguard1.77M$140.4MHeld
JPMORGAN CHASE & CO1.58M$125.6MHeld
WELLINGTON MANAGEMENT GROUP LLP1.52M$120.6MHeld
Atlas Venture Life Science Advisors, LLC1.51M$120.2MHeld
Frazier Life Sciences Management, L.P.1.26M$100.1MHeld
State Street1.19M$94.3MHeld
ORBIMED ADVISORS LLC1.07M$84.8MHeld
Siren, L.L.C.988.4K$78.5MHeld
Woodline Partners LP957.8K$76.1MHeld
GOLDMAN SACHS GROUP INC754.2K$59.9MHeld
Vestal Point Capital, LP735K$58.4MHeld
GEODE CAPITAL MANAGEMENT, LLC685K$54.4MHeld
BVF INC/IL650K$51.6MHeld
JENNISON ASSOCIATES LLC532.1K$42.3MHeld
First Light Asset Management, LLC523.2K$41.5MHeld
DEERFIELD MANAGEMENT COMPANY, L.P.511.2K$40.6MHeld
Logos Global Management LP510K$40.5MHeld
ARMISTICE CAPITAL, LLC499.4K$39.7MHeld
Checkpoint Capital L.P.453K$36MHeld
PERCEPTIVE ADVISORS LLC450.7K$35.8MHeld
EVENTIDE ASSET MANAGEMENT, LLC395.4K$31.4MHeld
Pictet Asset Management Holding SA394.4K$31.3MHeld
Assenagon Asset Management S.A.357.8K$28.4MHeld
BAKER BROS. ADVISORS LP337.1K$26.8MHeld
Palo Alto Investors LP317.5K$25.2MHeld
Foresite Capital Management V, LLC299.1K$23.7MHeld
Saturn V Capital Management LP298.4K$23.7MHeld
LOOMIS SAYLES & CO L P282.4K$22.4MHeld
GREAT POINT PARTNERS LLC250K$19.9MHeld
CHARLES SCHWAB INVESTMENT MANAGEMENT INC247K$19.6MHeld
Aberdeen Group plc234.4K$18.6MHeld
NORTHERN TRUST CORP228.1K$18.1MHeld
DIMENSIONAL FUND ADVISORS LP223.6K$17.7MHeld
Balyasny Asset Management L.P.221.8K$17.6MHeld
Opaleye Management Inc.200K$15.9MHeld
TimesSquare Capital Management, LLC187.8K$14.9MHeld
MILLENNIUM MANAGEMENT LLC184.8K$14.7MHeld
Ensign Peak Advisors, Inc177.1K$14.1MHeld
First Turn Management, LLC153.2K$12.2MHeld
BANK OF AMERICA CORP /DE/136K$10.8M$1.81MAdded$147.6K
Nantahala Capital Management, LLC132.8K$10.5MHeld
BNP PARIBAS FINANCIAL MARKETS122.2K$9.7MHeld
UBS Group AG116.1K$9.22MHeld
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC114.4K$9.08MHeld
Sofinnova Investments, Inc.111K$8.82MHeld
Catalio Capital Management, LP110.4K$8.77MHeld
Citadel100.4K$7.97MHeld
BARCLAYS PLC99.6K$7.91M$1.33MAdded$826.2K
DNB Asset Management AS84.3K$6.69MHeld
AMERIPRISE FINANCIAL INC83K$6.59MHeld
RAYMOND JAMES FINANCIAL INC80.3K$6.18MHeld
VICTORY CAPITAL MANAGEMENT INC76.3K$6.06MHeld
MORGAN STANLEY74.8K$5.94M$747.5KAdded$2.24M
Patient Square Capital LP74K$5.88MHeld
TD Asset Management Inc69.6K$5.53MHeld
Bank of New York Mellon Corp67.7K$5.38MHeld
TUDOR INVESTMENT CORP ET AL66.1K$5.25MNew
Verition Fund Management LLC63.5K$5.05MHeld
Renaissance Technologies62.8K$4.99MHeld
Invesco Ltd.61.1K$4.85MHeld
KVP Capital Advisors, LP58.3K$4.63MHeld
ExodusPoint Capital Management, LP58.2K$4.62MHeld
LAZARD ASSET MANAGEMENT LLC58.1K$4.61MHeld
Sio Capital Management, LLC57.6K$4.57MHeld
MANUFACTURERS LIFE INSURANCE COMPANY, THE52.5K$4.07MHeld
Alyeska Investment Group, L.P.50K$3.97MHeld
BURKEHILL GLOBAL MANAGEMENT, LP50K$3.97MHeld
Brevan Howard Capital Management LP49.7K$3.89MHeld
SCHRODER INVESTMENT MANAGEMENT GROUP50.1K$3.85MHeld
Nuveen, LLC48.5K$3.85MHeld
Nicholas Investment Partners, LP48.1K$3.82MHeld
Swiss National Bank48K$3.81MHeld
Atle Fund Management AB48K$3.81MHeld
Exome Asset Management LLC46.7K$3.71MHeld
NEXTBio Capital Management LP42.8K$3.4MHeld
CITIGROUP INC36.2K$2.87MHeld
Rafferty Asset Management, LLC36.1K$2.87MHeld
SEVEN GRAND MANAGERS, LLC35K$2.78MHeld
WELLS FARGO & COMPANY/MN33.3K$2.64MHeld
ALPS ADVISORS INC31K$2.46MHeld
AMERICAN CENTURY COMPANIES INC30.3K$2.41MHeld
RTW INVESTMENTS, LP30K$2.38MHeld
RHUMBLINE ADVISERS29.8K$2.37MHeld
Zimmer Partners, LP27.5K$2.18MHeld
Universal- Beteiligungs- und Servicegesellschaft mbH27.3K$2.17MHeld
Eagle Health Investments LP27.1K$2.15MHeld
PNC Financial Services Group, Inc.25.2K$2MHeld
BANK OF MONTREAL /CAN/24.8K$1.97MHeld
ALLIANCEBERNSTEIN L.P.24.5K$1.95MHeld
Russell Investments Group, Ltd.23.7K$1.88MHeld
Legal & General Group Plc23.7K$1.88MHeld
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM23.3K$1.85MHeld
XTX Topco Ltd23.1K$1.83MHeld
DEUTSCHE BANK AG\20.5K$1.63MHeld
Campbell & CO Investment Adviser LLC17.4K$1.38MHeld
STATE OF WISCONSIN INVESTMENT BOARD17.1K$1.36MHeld
Squarepoint Ops LLC15.8K$1.25MHeld
Icahn Capital14K$1.11MHeld
PRELUDE CAPITAL MANAGEMENT, LLC14K$1.11MHeld
NEW YORK STATE COMMON RETIREMENT FUND14K$1.11MHeld
MetLife Investment Management, LLC13.8K$1.1MHeld
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.13.7K$1.08MHeld
PROFUND ADVISORS LLC13.5K$1.07MHeld
VOYA INVESTMENT MANAGEMENT LLC13.2K$1.05MHeld
FRED ALGER MANAGEMENT, LLC12.3K$974.1KHeld
JANUS HENDERSON GROUP PLC11.6K$918KHeld
Y-Intercept (Hong Kong) Ltd11.4K$902KHeld
PFM Health Sciences, LP11K$873.7KHeld
Ghisallo Capital Management LLC10K$794.1KHeld
INTECH INVESTMENT MANAGEMENT LLC9.91K$787KHeld
KENNEDY CAPITAL MANAGEMENT LLC9.32K$740.4KHeld
SUSQUEHANNA INTERNATIONAL GROUP, LLP9.31K$739.2KHeld
STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM8.7K$691.2KHeld
State of New Jersey Common Pension Fund D8.31K$659.6KHeld
Legato Capital Management LLC8.25K$655KHeld
Lion Point Capital, LP8.1K$643.2KHeld
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP7.77K$616.8KHeld
China Universal Asset Management Co., Ltd.7.75K$615.5KHeld
Jain Global LLC7.32K$581.2KHeld
LOS ANGELES CAPITAL MANAGEMENT LLC6.49K$556.9KHeld
FORA Capital, LLC6.74K$543.9KHeld
ARIZONA STATE RETIREMENT SYSTEM6.8K$539.8KHeld
Police & Firemen's Retirement System of New Jersey6.72K$533.3KHeld
ProShare Advisors LLC6.23K$494.5KHeld
STRS OHIO6K$476.5KHeld
Engineers Gate Manager LP5.46K$433.6KHeld
VARCOV Co.5.33K$423KHeld
KLP KAPITALFORVALTNING AS5.2K$412.9KHeld
MARSHALL WACE, LLP4.64K$368.6KHeld
Abel Hall, LLC4.44K$352.8KHeld
Entropy Technologies, LP4.36K$346KHeld
Fiduciary Trust Co4.05K$321.7KHeld
Creative Planning3.86K$306.8KHeld
AlphaCentric Advisors LLC3.76K$298.3KHeld
Susquehanna Portfolio Strategies, LLC3.73K$296.4KHeld
TEACHER RETIREMENT SYSTEM OF TEXAS3.61K$287KHeld
Allianz Asset Management GmbH3K$238.2KHeld
Zurcher Kantonalbank (Zurich Cantonalbank)2.99K$237.3KHeld
Virtus Investment Advisers, LLC2.9K$230.1KHeld
SAXON INTERESTS, INC.2.58K$204.6KHeld
Ameritas Investment Partners, Inc.2.06K$163.5KHeld
Avanza Fonder AB1.9K$151.1KHeld
Mirae Asset Global Investments Co., Ltd.1.83K$145.6KHeld
Persistent Asset Partners Ltd1.78K$141.3KNew
PRICE T ROWE ASSOCIATES INC /MD/1.7M$134.8KHeld
US BANCORP \DE\1.18K$93.4KHeld
ROYAL BANK OF CANADA802$64KHeld
Tower Research Capital LLC (TRC)776$61.6KHeld
GF FUND MANAGEMENT CO. LTD.742$58.9KHeld
Steward Partners Investment Advisory, LLC528$41.9KHeld
ANTIPODES PARTNERS Ltd419$33.3KHeld
AlphaQuest LLC366$29.1KHeld
GAMMA Investing LLC304$24.1KHeld
OSAIC HOLDINGS, INC.273$21.7KHeld
NISA INVESTMENT ADVISORS, LLC240$19.1KHeld
Caitong International Asset Management Co., Ltd232$18.4KHeld
Sterling Capital Management LLC163$12.9KHeld
Larson Financial Group LLC112$8.89KHeld
Smartleaf Asset Management LLC73$5.61KHeld
Optiver Holding B.V.70$5.56KHeld
Kemnay Advisory Services Inc.69$5.48KHeld
EverSource Wealth Advisors, LLC67$5.32KHeld
iA Global Asset Management Inc.66.4K$5.28KHeld
J.Safra Asset Management Corp63$5KHeld
Farther Finance Advisors, LLC53$4.21KHeld
BNP PARIBAS ASSET MANAGEMENT Holding S.A.40.2K$3.19KHeld
ROTHSCHILD INVESTMENT LLC40$3.18KHeld
FIRST HORIZON CORP28$2.22KHeld
SG Americas Securities, LLC21.1K$1.68KHeld
Parkside Financial Bank & Trust20$1.59KHeld
COMERICA BANK19$1.54KHeld
Versant Capital Management, Inc19$1.51KHeld
TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY16.2K$1.28KHeld
ASSETMARK, INC12$953Held
Cornerstone Financial Management LLC11$874Held
Bare Financial Services, Inc9$715Held
Allworth Financial LP7$556$80Added$159
Essential Partners LLC4$318$54Added$54
GSA CAPITAL PARTNERS LLP3.29K$261Held
Global Retirement Partners, LLC3$238Held
IFP Advisors, Inc3$238$40Added$40
Arax Advisory Partners2$159Held
CWM, LLC1.03K$82Held
True Wealth Design, LLC1$80Held
KBC Group NV1.01K$80New
SBI Securities Co., Ltd.1$79Held
Hughes Financial Services, LLC1$79Held
AMALGAMATED BANK784$62Held
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO730$58Held
Cygnus Capital Advisors, LLC502$40Held
Daiwa Securities Group Inc.113$9Held
Covestor Ltd2$0Held
BESSEMER GROUP INC2$0Held
NOMURA ASSET MANAGEMENT CO LTD0$0Held

Who left

Positions as of Q4 2025. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.