ZBIOZenas BioPharma, Inc. Common Stock

CSNasdaq (XNAS)·USD

Identity

Security key: 24147
Ticker: ZBIO
Type: CS — Common Stock
Exchange: Nasdaq(XNAS)
Venue group: NASDAQ
Operating MIC: XNAS
Market: stocks
Locale: us
Currency: USD
Listed: 2024-09-13
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: ZBIO

Detail

Enriched 2026-08-14 20:47

Market cap: $1,975,443,366.33
Shares outstanding (class): 63,133,377
Shares outstanding (weighted): 63,133,377
SIC: 2834 PHARMACEUTICAL PREPARATIONS
Employees: 167
Location: WALTHAM, MA
Homepage: https://www.zenasbio.com
Description: Zenas BioPharma Inc is a clinical-stage biopharmaceutical company. Its I&I product candidate, obexelimab, is a bifunctional monoclonal antibody designed to bind both CD19 and FcyRIIb, which are present across B cell lineage, in order to inhibit the activity of cells that are implicated in many autoimmune diseases without depleting them. The Company manages its operations on a consolidated basis as a single reportable segment focused on the research, development and commercialization of transformative immunology-based therapies.

Market cap and share counts drift.

Funds holding this security

68 funds · 68 positions · $132.88M reported value, as of 2026-03-31

All holders →

Fund	Ticker	Position value	% of fund	Balance	Match
SMALLCAP World Fund Inc SMALLCAP World Fund Inc	—	$47.58M	0.06%	2,434,000 NS	FIGI
State Street(R) SPDR(R) S&P(R) Biotech ETF SPDR SERIES TRUST	XBI	$17.72M	0.24%	906,255 NS	FIGI
VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS	VTI	$17.42M	0.00%	891,196 NS	FIGI
iShares Russell 2000 ETF iShares Trust	IWM	$11.13M	0.02%	569,523 NS	FIGI
VANGUARD EXTENDED MARKET INDEX FUND VANGUARD INDEX FUNDS	VXF	$6.29M	0.01%	321,945 NS	FIGI
Meridian Contrarian Fund Meridian Fund Inc	—	$4.77M	0.81%	243,812 NS	FIGI
T. Rowe Price New Horizons Fund, Inc. T. ROWE PRICE NEW HORIZONS FUND, INC.	—	$4.47M	0.03%	228,448 NS	FIGI
iShares Russell 2000 Value ETF iShares Trust	IWN	$3.92M	0.03%	200,584 NS	FIGI
VIP Health Care Portfolio Variable Insurance Products Fund IV	—	$3.62M	0.36%	185,000 NS	FIGI
iShares Biotechnology ETF iShares Trust	IBB	$3.44M	0.04%	175,941 NS	FIGI
Fidelity U.S. Equity Central Fund Fidelity Central Investment Portfolios LLC	—	$1.96M	0.01%	100,000 NS	FIGI
Meridian Small Cap Growth Fund Meridian Fund Inc	—	$1.65M	0.70%	84,524 NS	FIGI
iShares Micro-Cap ETF iShares Trust	IWC	$1.16M	0.10%	59,281 NS	FIGI
Fidelity Enhanced Small Cap ETF Fidelity Covington Trust	FESM	$898.8K	0.02%	45,975 NS	FIGI
Master Small Cap Index Series Quantitative Master Series LLC	—	$746.9K	0.02%	38,204 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

TICKERZBIO
FIGI_COMPOSITEBBG01J1MG9D6
FIGI_SHARE_CLASSBBG01J1MG9F4
CIK0001953926
ISINUS98937L1052
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: 0.9
Model: deepseek
Rationale: Zenas BioPharma is a biopharmaceutical company classified under SIC 2834, indicating 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.