Company · Ownership research

Disc Medicine, Inc. IRON

CIK 0001816736 · CUSIP 254604101

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 254604101 (IRON), not CUSIP 254604901 (IRON), CUSIP 254604951 (IRON), and does not merge CUSIPs.

This page lists the top 20 of 159 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	FMR LLC CIK 315066 · Amended · View history	$160.06M 3,224,381 shares	0.01%	+1.36M(+72.80%)Added	SEC filing ↗ Nov 5, 2026	▾
02	Atlas Venture Life Science Advisors, LLC CIK 1917529 · View history	$118.36M 2,384,456 shares	22.69%	-125.00K(-5.00%)Reduced	SEC filing ↗ May 14, 2025	▾
03	WELLINGTON MANAGEMENT GROUP LLP CIK 902219 · View history	$116.33M 2,343,499 shares	0.02%	+948.09K(+67.90%)Added	SEC filing ↗ May 13, 2025	▾
04	BlackRock, Inc. CIK 2012383 · View history	$103.97M 2,094,560 shares	0.00%	+234.83K(+12.60%)Added	SEC filing ↗ May 2, 2025	▾
05	Frazier Life Sciences Management, L.P. CIK 1892134 · View history	$87.11M 1,754,834 shares	3.98%	0(0.00%)Unchanged	SEC filing ↗ May 15, 2025	▾
06	RA CAPITAL MANAGEMENT, L.P. CIK 1346824 · View history	$78.29M 1,577,106 shares	1.31%	+1.58MNew	SEC filing ↗ May 15, 2025	▾
07	JANUS HENDERSON GROUP PLC CIK 1274173 · View history	$74.45M 1,423,259 shares	0.04%	+205.44K(+16.90%)Added	SEC filing ↗ May 15, 2025	▾
08	ORBIMED ADVISORS LLC CIK 1055951 · View history	$70.24M 1,415,020 shares	1.69%	-370.55K(-20.80%)Reduced	SEC filing ↗ May 15, 2025	▾
09	PRICE T ROWE ASSOCIATES INC /MD/ CIK 80255 · View history	$67.42M 1,358,254 shares	0.01%	-36.38K(-2.60%)Reduced	SEC filing ↗ May 14, 2025	▾
10	VANGUARD GROUP INC CIK 102909 · View history	$64.78M 1,305,046 shares	0.00%	+236.80K(+22.20%)Added	SEC filing ↗ May 9, 2025	▾
11	Paradigm Biocapital Advisors LP CIK 1855655 · View history	$60.11M 1,210,971 shares	2.77%	-286.75K(-19.10%)Reduced	SEC filing ↗ May 15, 2025	▾
12	Siren, L.L.C. CIK 2005245 · Amended · View history	$53.21M 1,071,865 shares	3.00%	+1.07MNew	SEC filing ↗ May 23, 2025	▾
13	Bain Capital Life Sciences Investors, LLC CIK 1703031 · View history	$48.82M 983,500 shares	7.22%	0(0.00%)Unchanged	SEC filing ↗ May 15, 2025	▾
14	STATE STREET CORP CIK 93751 · View history	$45.60M 918,567 shares	0.00%	+149.83K(+19.50%)Added	SEC filing ↗ May 15, 2025	▾
15	DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) CIK 1009258 · View history	$38.84M 782,333 shares	0.77%	+181.82K(+30.30%)Added	SEC filing ↗ May 15, 2025	▾
16	JPMORGAN CHASE & CO CIK 19617 · View history	$37.69M 759,338 shares	0.00%	+698.32K(+1,144.50%)Added	SEC filing ↗ May 12, 2025	▾
17	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$28.40M 571,984 shares	0.00%	+99.28K(+21.00%)Added	SEC filing ↗ May 13, 2025	▾
18	Saturn V Capital Management LP CIK 1964437 · View history	$25.72M 518,177 shares	12.98%	+8.77K(+1.70%)Added	SEC filing ↗ May 15, 2025	▾
19	Woodline Partners LP CIK 1784547 · View history	$24.93M 502,230 shares	0.16%	+105.63K(+26.60%)Added	SEC filing ↗ May 15, 2025	▾
20	TCG Crossover Management, LLC CIK 1839948 · View history	$23.10M 465,257 shares	3.15%	-21.70K(-4.50%)Reduced	SEC filing ↗ May 14, 2025	▾

Showing 20 / 159 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

159

Cancelled or null records excluded

Disclosed shares

33,154,061

Not deduplicated across managers

Disclosed value

$1.65B

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

Disc Medicine, Inc. · Q1 2025

Explore all 159 reporting institutions.

This page includes 20 of 159 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.

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Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.