IRONDisc Medicine, Inc. Common Stock

CSNasdaq (XNAS)·USD

Identity

Security key: 17239
Ticker: IRON
Type: CS — Common Stock
Exchange: Nasdaq(XNAS)
Venue group: NASDAQ
Operating MIC: XNAS
Market: stocks
Locale: us
Currency: USD
Listed: 2021-02-08
Round lot: 100
Active: Yes
Last seen in a load: 2026-08-14 20:49
Vendor updated: 2026-08-13 06:09
Ticker root / suffix: IRON

Detail

Enriched 2026-08-14 20:47

Market cap: $3,094,079,297.96
Shares outstanding (class): 38,392,844
Shares outstanding (weighted): 38,392,844
SIC: 2834 PHARMACEUTICAL PREPARATIONS
Employees: 165
Location: WATERTOWN, MA
Homepage: https://www.discmedicine.com
Description: Disc Medicine Inc is a clinical-stage biopharmaceutical company focused on the discovery, development, and commercialization of novel treatments for hematologic diseases. It aims to modify fundamental biological pathways associated with the formation and function of red blood cells, specifically heme biosynthesis and iron homeostasis. Its pipeline includes bitopertin for erythropoietic porphyrias (EPs), including erythropoietic protoporphyria (EPP), X-linked protoporphyria (XLP), and Diamond-Blackfan Anemia (DBA); DISC-0974 for the treatment of anemia of myelofibrosis (MF) and anemia of chronic kidney disease (CKD); and DISC-3405 for the treatment of polycythemia vera (PV) and other hematologic disorders. In addition, the Company's preclinical programs include DISC-0998.

Market cap and share counts drift.

Funds holding this security

110 funds · 114 positions · $498.27M reported value, as of 2026-03-31

All holders →

Fund	Ticker	Position value	% of fund	Balance	Match
State Street(R) SPDR(R) S&P(R) Biotech ETF SPDR SERIES TRUST	XBI	$64.71M	0.87%	1,012,048 NS	FIGI
VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS	VTI	$63.23M	0.00%	988,969 NS	FIGI
iShares Russell 2000 ETF iShares Trust	IWM	$42.80M	0.06%	669,388 NS	FIGI
T. Rowe Price New Horizons Fund, Inc. T. ROWE PRICE NEW HORIZONS FUND, INC.	—	$32.29M	0.25%	504,986 NS	FIGI
Eventide Healthcare & Life Sciences Fund MUTUAL FUND SERIES TRUST	—	$25.27M	1.59%	395,235 NS	FIGI
JPMorgan Mid Cap Growth Fund JPMorgan Trust II	—	$24.66M	0.22%	385,709 NS	FIGI
VANGUARD EXTENDED MARKET INDEX FUND VANGUARD INDEX FUNDS	VXF	$22.66M	0.03%	354,366 NS	FIGI
T. Rowe Price Integrated U.S. Small-Cap Growth … T. ROWE PRICE INTEGRATED EQUITY FUNDS, INC.	—	$20.30M	0.25%	317,503 NS	FIGI
JPMorgan Small Cap Growth Fund JPMorgan Trust II	—	$18.46M	0.85%	288,645 NS	FIGI
iShares Russell 2000 Growth ETF iShares Trust	IWO	$14.35M	0.12%	224,443 NS	FIGI
iShares Biotechnology ETF iShares Trust	IBB	$13.74M	0.17%	214,889 NS	FIGI
VIP Mid Cap Portfolio Variable Insurance Products Fund III	—	$13.36M	0.17%	208,900 NS	FIGI
Fidelity U.S. Equity Central Fund Fidelity Central Investment Portfolios LLC	—	$12.15M	0.06%	190,000 NS	FIGI
T. Rowe Price Health Sciences Fund, Inc. T. ROWE PRICE HEALTH SCIENCES FUND, INC.	—	$11.93M	0.11%	186,605 NS	FIGI
Loomis Sayles Small Cap Growth Fund LOOMIS SAYLES FUNDS II	—	$11.35M	0.59%	177,485 NS	FIGI

How positions resolve to the securities master. FIGI_COMPOSITE is exact identifier equality — both sides got the FIGI from Bloomberg. TICKER is a narrow fallback used only where the master row carries no FIGI at all (2,389 rows do not, disproportionately Irish-domiciled US listings like LIN and ACN). Roughly 22% of all positions resolve to the master.

Funds holding this security

Identifiers

master.security_identifier

TICKERIRON
FIGI_COMPOSITEBBG00W9MJK79
FIGI_SHARE_CLASSBBG00W9MJL04
CIK0001816736
ISINUS2546041011
Resolved through OpenFIGI from a holdings ISIN, not supplied by the securities vendor.

Identifiers

Classification

classification.v_security_classification

Asset class: Equity
Sector: Health Care
Industry: Biotechnology
Source: LLMunreviewed
Self-reported confidence: 0.95
Model: deepseek
Rationale: Disc Medicine is a clinical-stage biopharmaceutical company developing treatments for hematologic diseases, fitting the biotechnology industry.

Classifications are unreviewed model output. All 5,771 assignments carry source = LLM and is_reviewed = false. Confidence is the model’s own estimate and is not calibrated — it clustered at 0.90–0.98 across the whole first pass, including rows that later proved wrong. Use it to order a review queue, not as a probability. Two share classes of one issuer can disagree.

Classification

Fund data

Not linked to a fund series.

Either this is not a fund, or it is one the SEC share-class snapshot cannot reach — commodity trusts and notes have no series ID at all.