How many institutions held IRON - Disc Medicine, Inc. - Common Stock, $0.0001 par value per share in Q2 2023?

89 institutional investors reported IRON - Disc Medicine, Inc. - Common Stock, $0.0001 par value per share for Q2 2023. Use the holders table for investor-level position and value details.

Disc Medicine, Inc. - Common Stock, $0.0001 par value per share (IRON)

Q: What does CUSIP 254604101 represent in this 13F holders report?

CUSIP 254604101 is the security identifier for IRON - Disc Medicine, Inc. - Common Stock, $0.0001 par value per share used to aggregate holder disclosures.

CUSIP: 254604101

Q2 2023 13F Holders as of 30 Jun 2023

Type / Class: Equity / Common Stock, $0.0001 par value per share
Shares outstanding: 37,778,373
Total 13F shares: 19,115,397
Share change: +4,502,962
Total reported value: $848,710,699
Price per share: $44.40
Number of holders: 89
Value change: +$223,083,623
Number of buys: 71
Number of sells: 20

Quarterly Holders Quick Answers

What is CUSIP 254604101?
CUSIP 254604101 identifies IRON - Disc Medicine, Inc. - Common Stock, $0.0001 par value per share in SEC institutional holdings data.

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Explore More Reporting Periods

Jump to adjacent filing periods for faster comparison and easier crawl discovery.

Newer quarter: Q3 2023
Previous quarter: Q1 2023

Recent filing periods for CUSIP 254604101:

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024

Top shareholders of IRON - Disc Medicine, Inc. - Common Stock, $0.0001 par value per share (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
Braden M. Leonard	3/4/5	10%+ Owner	— class O/S missing	5,247,500	$354,993,375	—	26 Oct 2022	3/4/5
Novo Holdings A/S	3/4/5 13F	10%+ Owner · Company	6.2% from 13F	1,090,772	$73,790,726	—	28 Jun 2023	3/4/5 13F
Atlas Venture Life Science Advisors, LLC	13F	Company	9.2%	3,461,784	$73,355,203	—	31 Mar 2023	13F
ORBIMED ADVISORS LLC	13F	Company	6%	2,269,637	$48,093,608	—	31 Mar 2023	13F
Bain Capital Life Sciences Investors, LLC	13F	Company	5.3%	1,990,914	$42,187,000	—	31 Mar 2023	13F
James B. Tananbaum	3/4/5	Director, 10%+ Owner	— mixed-class rows	428,745 mixed-class rows	$27,837,975	—	04 Oct 2021	3/4/5
ADAGE CAPITAL PARTNERS GP, L.L.C.	13F	Company	2.2%	826,936	$17,522,774	—	31 Mar 2023	13F
Atlas Venture Opportunity Fund II, L.P.	3/4/5	10%+ Owner	— class O/S missing	218,326	$14,769,754	—	29 Dec 2022	3/4/5
5AM Venture Management, LLC	13F	Company	1.6%	588,442	$12,469,086	—	31 Mar 2023	13F
Logos Global Management LP	13F	Company	1.4%	525,000	$11,124,750	—	31 Mar 2023	13F
VANGUARD GROUP INC	13F	Company	0.85%	322,869	$6,841,594	—	31 Mar 2023	13F
Rock Springs Capital Management LP	13F	Company	0.83%	313,468	$6,642,387	—	31 Mar 2023	13F
Foresite Capital Management V, LLC	13F	Company	0.64%	243,513	$5,160,040	—	31 Mar 2023	13F
SPHERA FUNDS MANAGEMENT LTD.	13F	Company	0.58%	220,013	$4,662,075	—	31 Mar 2023	13F
BML Capital Management, LLC	13F	Company	0.55%	208,161	$4,410,932	—	31 Mar 2023	13F
CITADEL ADVISORS LLC	13F	Company	0.45%	171,238	$3,628,533	—	31 Mar 2023	13F
FMR LLC	13F	Company	0.4%	151,699	$3,214,502	—	31 Mar 2023	13F
Boxer Capital, LLC	13F	Company	0.34%	130,000	$2,755,000	—	31 Mar 2023	13F
Trustees of Columbia University in the City of New York	13F	Company	0.29%	110,488	$2,341,241	—	31 Mar 2023	13F
Ghost Tree Capital, LLC	13F	Company	0.26%	100,000	$2,119,000	—	31 Mar 2023	13F
Nantahala Capital Management, LLC	13F	Company	0.24%	89,538	$1,897,310	—	31 Mar 2023	13F
ExodusPoint Capital Management, LP	13F	Company	0.19%	70,966	$1,504,000	—	31 Mar 2023	13F
Assenagon Asset Management S.A.	13F	Company	0.16%	61,805	$1,309,648	—	31 Mar 2023	13F
Brian Piekos	3/4/5	CFO	— class O/S missing	17,615	$1,191,655	—	31 May 2022	3/4/5
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	0.12%	47,038	$996,735	—	31 Mar 2023	13F
OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC)	13F	Company	0.12%	45,750	$969,442	—	31 Mar 2023	13F
JANUS HENDERSON GROUP PLC	13F	Company	0.12%	43,698	$925,960	—	31 Mar 2023	13F
Brian Richard MacDonald	3/4/5	Chief Innovation Officer	— class O/S missing	13,372	$904,615	—	28 Jun 2023	3/4/5
SUSQUEHANNA INTERNATIONAL GROUP, LLP	13F	Company	0.1%	37,213	$788,543	—	31 Mar 2023	13F
CITIGROUP INC	13F	Company	0.07%	25,080	$531,445	—	31 Mar 2023	13F
HARVARD MANAGEMENT CO INC	13F	Company	0.07%	25,000	$529,750	—	31 Mar 2023	13F
TWO SIGMA INVESTMENTS, LP	13F	Company	0.06%	24,150	$511,739	—	31 Mar 2023	13F
BlackRock Finance, Inc.	13F	Company	0.06%	23,467	$497,265	—	31 Mar 2023	13F
MILLENNIUM MANAGEMENT LLC	13F	Company	0.06%	22,107	$468,000	—	31 Mar 2023	13F
GOLDMAN SACHS GROUP INC	13F	Company	0.06%	21,674	$459,272	—	31 Mar 2023	13F
JANE STREET GROUP, LLC	13F	Company	0.05%	19,252	$407,950	—	31 Mar 2023	13F
RENAISSANCE TECHNOLOGIES LLC	13F	Company	0.04%	15,270	$324,000	—	31 Mar 2023	13F
STATE STREET CORP	13F	Company	0.04%	14,487	$306,980	—	31 Mar 2023	13F
STIFEL FINANCIAL CORP	13F	Company	0.04%	13,722	$290,769	—	31 Mar 2023	13F
Velan Capital Investment Management LP	13F	Company	0.03%	12,269	$259,980	—	31 Mar 2023	13F
MORGAN STANLEY	13F	Company	0.03%	9,815	$207,981	—	31 Mar 2023	13F
BARCLAYS PLC	13F	Company	0.01%	5,619	$119,067	—	31 Mar 2023	13F
UBS Group AG	13F	Company	0.01%	5,243	$111,099	—	31 Mar 2023	13F
BANK OF AMERICA CORP /DE/	13F	Company	0.01%	2,682	$56,832	—	31 Mar 2023	13F
US BANCORP \DE\	13F	Company	0%	1,176	$24,919	—	31 Mar 2023	13F
Steward Partners Investment Advisory, LLC	13F	Company	0%	300	$6,357	—	31 Mar 2023	13F
ROYAL BANK OF CANADA	13F	Company	0%	100	$2,000	—	31 Mar 2023	13F
Ulland Investment Advisors, LLC	13F	Company	0%	34	$1,000	—	31 Mar 2023	13F
WELLS FARGO & COMPANY/MN	13F	Company	0%	26	$551	—	31 Mar 2023	13F
TCI Wealth Advisors, Inc.	13F	Company	0%	20	$424	—	31 Mar 2023	13F

Institutional Holders of Disc Medicine, Inc. - Common Stock, $0.0001 par value per share (IRON) as of Q2 2023

As of 30 Jun 2023, Disc Medicine, Inc. - Common Stock, $0.0001 par value per share (IRON) was held by 89 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 19,115,397 shares. The largest 10 holders included Atlas Venture Life Science Advisors, LLC, ORBIMED ADVISORS LLC, Bain Capital Life Sciences Investors, LLC, ADAGE CAPITAL PARTNERS GP, L.L.C., Novo Holdings A/S, PERCEPTIVE ADVISORS LLC, Frazier Life Sciences Management, L.P., CITADEL ADVISORS LLC, VANGUARD GROUP INC, and BANK OF AMERICA CORP /DE/. This page lists 89 institutional shareholders reporting positions in this security for the Q2 2023 filing period.

Investor	Option	Weight %	Change %	Value $	* Price	Shares	Share Change	Activity	Report Period

Compare Q2 2023 vs Q1 2023 Across Filers

Q1 2023 holders

Q2 2023 holders

Holder diff

Investor	Q1 2023 Shares	Q2 2023 Shares	Share Diff	Share Chg %	Q1 2023 Value $	Q2 2023 Value $	Value Diff $	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.