How many institutions held IRON - Disc Medicine, Inc. - Common Stock, $0.0001 par value per share in Q3 2025?

164 institutional investors reported IRON - Disc Medicine, Inc. - Common Stock, $0.0001 par value per share for Q3 2025. 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

Q3 2025 13F Holders as of 30 Sep 2025

Security type / class: Equity / Common Stock, $0.0001 par value per share
Total 13F shares: 34,174,573
Total 13F value: $2,258,188,476
Share change: +96,915
Put/Call ratio: 25%
SEC-reported price per share: $66.08
Number of holders: 164
Value change: +$16,098,753
Number of buys: 85
Number of sells: 53
Shares outstanding: 37,778,373

Security key

254604101

Report period

Q3 2025

Institutions

164

Top holders

IRON full security history Ownership snapshot Full 13F holder table Newer quarter: Q4 2025 Previous quarter: Q2 2025 Disc Medicine, Inc. SEC filings Disc Medicine, Inc. company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP 254604101

Newer quarter: Q4 2025 Previous quarter: Q2 2025

Recent filing periods:

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

Ownership snapshot

Top reported holders 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. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader

FMR LLC

Disclosed value leader

FMR LLC

Comparable rows

15/15

Latest evidence

30 Sep 2025

13D/G 13F 3/4/5 Lead comparable stake: 14% 13D/G row: FMR LLC Showing 1-6 of 15 holder rows.

Quick read

FMR LLC leads the comparable SEC ownership view at 14%.

15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens FMR LLC's linked filing trail.

Comparable ownership Top 5

FMR LLC 14%

ORBIMED ADVISORS LLC 4.5%

WELLINGTON MANAGEMENT GROUP LLP 4.1%

Paradigm Biocapital Advisors LP 3.5%

Bain Capital Life Sciences Opport... 3.3%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
FMR LLC	13D/G 13F Company 13D/G 13F	14%	$324,265,066 4,907,159 shares	+$45,337,554	30 Sep 2025
ORBIMED ADVISORS LLC	13F 13D/G 3/4/5 Company · Director 13F 13D/G 3/4/5	4.5% from 13D/G	$74,939,459 1,415,020 shares	—	30 Jun 2025
WELLINGTON MANAGEMENT GROUP LLP	13D/G 13F Company 13D/G 13F	4.1%	$79,996,547 1,432,090 shares	-$50,911,307	30 Jun 2025
Paradigm Biocapital Advisors LP	13F 13D/G Company 13F 13D/G	3.5% from 13D/G	$64,133,024 1,210,971 shares	—	30 Jun 2025
Bain Capital Life Sciences Opportunities III, LP	13D/G 13D/G	3.3%	$46,372,025 983,500 shares	$0	31 Dec 2024
Frazier Life Sciences Public Fund, L.P.	13D/G 13D/G	3%	$57,339,676 1,026,489 shares	$0	30 Jun 2025

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q3 2025

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

164

34,174,573

Rows available

164

Investor	Option	Weight %	Change %	SEC-reported value	* Price	Shares	Share Change	Activity	Report Period

^* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q3 2025 vs Q2 2025 Across Filers

Q2 2025 holders

148

Q3 2025 holders

164

Holder diff

Investor	Q2 2025 Shares	Q3 2025 Shares	Share Diff	Share Chg %	Q2 2025 value	Q3 2025 value	Value change	Value Chg %

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

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend