AMLXAmylyx Pharmaceuticals, Inc. Common Stock

CSNasdaq (XNAS)·USD

Identity

Security key: 11673
Ticker: AMLX
Type: CS — Common Stock
Exchange: Nasdaq(XNAS)
Venue group: NASDAQ
Operating MIC: XNAS
Market: stocks
Locale: us
Currency: USD
Listed: 2022-01-07
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: AMLX

Detail

Enriched 2026-08-14 20:47

Market cap: $2,601,728,170.8
Shares outstanding (class): 111,423,048
Shares outstanding (weighted): 111,423,048
SIC: 2834 PHARMACEUTICAL PREPARATIONS
Employees: 136
Location: CAMBRIDGE, MA
Homepage: https://www.amylyx.com
Description: Amylyx Pharmaceuticals Inc is a clinical-stage pharmaceutical company focused on developing novel therapies for communities with high unmet medical needs. The company has preclinical and clinical development programs in endocrine conditions and neurodegenerative diseases. Its pipeline includes investigational therapies matched with diseases based on mechanistic rationale, clinical outcomes, biomarkers, and preclinical data. The company is currently developing avexitide for Post-Bariatric Hypoglycemia, AMX0035 for Wolfram Syndrome, AMX0114 for Amyotrophic Lateral Sclerosis, and AMX0318 for Post-Bariatric Hypoglycemia and other rare diseases.

Market cap and share counts drift.

Funds holding this security

84 funds · 84 positions · $176.41M reported value, as of 2026-03-31

All holders →

Fund	Ticker	Position value	% of fund	Balance	Match
VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS	VTI	$43.14M	0.00%	3,103,915 NS	FIGI
iShares Russell 2000 ETF iShares Trust	IWM	$30.98M	0.04%	2,228,876 NS	FIGI
Eventide Healthcare & Life Sciences Fund MUTUAL FUND SERIES TRUST	—	$21.02M	1.32%	1,512,444 NS	FIGI
VANGUARD EXTENDED MARKET INDEX FUND VANGUARD INDEX FUNDS	VXF	$12.95M	0.02%	931,606 NS	FIGI
iShares Biotechnology ETF iShares Trust	IBB	$9.56M	0.12%	687,536 NS	FIGI
iShares Russell 2000 Growth ETF iShares Trust	IWO	$7.97M	0.07%	573,250 NS	FIGI
State Street(R) SPDR(R) S&P(R) Pharmaceuticals … SPDR SERIES TRUST	XPH	$5.50M	1.79%	395,413 NS	FIGI
Fidelity U.S. Equity Central Fund Fidelity Central Investment Portfolios LLC	—	$5.28M	0.03%	380,000 NS	FIGI
VIP Health Care Portfolio Variable Insurance Products Fund IV	—	$3.61M	0.36%	260,000 NS	FIGI
Driehaus Micro Cap Growth Fund Driehaus Mutual Funds	—	$3.27M	0.71%	235,187 NS	FIGI
iShares U.S. Pharmaceuticals ETF iShares Trust	IHE	$3.24M	0.32%	233,280 NS	FIGI
iShares Micro-Cap ETF iShares Trust	IWC	$3.20M	0.26%	230,265 NS	FIGI
Bridge Builder Small/Mid Cap Growth Fund Bridge Builder Trust	—	$2.92M	0.03%	209,936 NS	FIGI
iShares Russell 2000 Value ETF iShares Trust	IWN	$2.50M	0.02%	180,045 NS	FIGI
Master Small Cap Index Series Quantitative Master Series LLC	—	$2.00M	0.04%	143,586 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

TICKERAMLX
FIGI_COMPOSITEBBG00DP10YT5
FIGI_SHARE_CLASSBBG00DP10YW1
CIK0001658551
ISINUS03237H1014
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: Pharmaceuticals
Source: LLMunreviewed
Self-reported confidence: 0.95
Model: deepseek
Rationale: Amylyx Pharmaceuticals is a biopharmaceutical company developing treatments for neurological diseases, classified under pharmaceutical preparations.

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.