Disc Medicine, Inc.

IRON

Exchange: Nasdaq
Industry: Pharmaceutical Preparations
SEC CIK: 0001816736

SEC filings (opens in a new tab)

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.

Q3 2025 vs. Q2 2025

How the institutions holding Disc Medicine, Inc. changed between Q2 2025 and Q3 2025.

All holders in Q3 2025 All holders in Q2 2025

13F holders of IRON: Q2 2025 compared with Q3 2025
Measure	Q2 2025	Q3 2025	Change
Holders	152	168	+16
Shares	34.1M	34.2M	+150.8K (+0.4%)
Value	$1.80B	$2.26B	+$457.0M (+25.3%)

New holders (25)

Institutions that held Disc Medicine, Inc. at the end of Q3 2025 but not at the end of Q2 2025.

Institutions new to IRON in Q3 2025
Institution	Shares	Value	% of portfolio
Balyasny Asset Management LLC	338,101	$22.3M	0.05%
First Light Asset Management, LLC	231,186	$15.3M	1.44%
TimesSquare Capital Management, LLC	182,170	$12.0M	0.17%
Hudson Bay Capital Management LP	102,185	$6.75M	0.04%
Citadel Advisors LLC	50,394	$3.33M	0.00%
American Century Companies Inc	27,938	$1.85M	0.00%
Jane Street Group, LLC	21,274	$1.41M	0.00%
Marshall Wace, LLP	14,001	$925.2K	0.00%
Fred Alger Management, LLC	13,726	$907.0K	0.00%
Assenagon Asset Management S.A.	10,433	$689.4K	0.00%
Point72 Asset Management, L.P.	9,226	$609.6K	0.00%
Kennedy Capital Management, Inc.	9,028	$596.6K	0.01%
Cubist Systematic Strategies, LLC	8,714	$575.8K	0.01%
SG Americas Securities, LLC	8,064	$533.0K	0.00%
Verition Fund Management LLC	6,133	$405.3K	0.00%
Squarepoint Ops LLC	5,377	$355.3K	0.00%
Campbell & CO Investment Adviser LLC	5,290	$349.6K	0.03%
Bryce Point Capital, LLC	3,912	$258.5K	0.32%
Susquehanna Portfolio Strategies, LLC	3,733	$246.7K	0.00%
Pictet Asset Management Holding SA	3,563	$235.4K	0.00%
Aster Capital Management (DIFC) Ltd	576	$38.1K	0.02%
SRS Capital Advisors, Inc.	206	$13.6K	0.00%
Optiver Holding B.V.	194	$12.8K	0.00%
Bare Financial Services, Inc	9	$595	0.00%
Farther Finance Advisors, LLC	7	$463	0.00%

Sold out (9)

Institutions that held Disc Medicine, Inc. at the end of Q2 2025 and filed for Q3 2025 without it.

Institutions that sold out of IRON in Q3 2025
Institution	Shares, Q2 2025	Value, Q2 2025
Bain Capital Life Sciences Investors, LLC	583,500	$30.9M
ExodusPoint Capital Management, LP	57,945	$3.07M
Bollard Group LLC	30,635	$1.62M
Voloridge Investment Management, LLC	19,726	$1.04M
Harvest Investment Services, LLC	14,316	$758.2K
UBS Oconnor LLC	12,317	$652.3K
First Trust Advisors LP	10,246	$542.6K
HighVista Strategies LLC	6,733	$356.6K
Meeder Asset Management Inc	2,244	$118.8K