GOSSGossamer Bio, Inc. Common Stock

CSNasdaq (XNAS)·USD

Identity

Security key: 16164
Ticker: GOSS
Type: CS — Common Stock
Exchange: Nasdaq(XNAS)
Venue group: NASDAQ
Operating MIC: XNAS
Market: stocks
Locale: us
Currency: USD
Listed: 2019-02-08
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: GOSS

Detail

Enriched 2026-08-14 20:47

Market cap: $86,819,177.83
Shares outstanding (class): 488,846,722
Shares outstanding (weighted): 488,846,722
SIC: 2834 PHARMACEUTICAL PREPARATIONS
Employees: 162
Location: SAN DIEGO, CA
Homepage: https://www.gossamerbio.com
Description: Gossamer Bio Inc is a clinical-stage biopharmaceutical company. It focuses on discovering, acquiring, developing, and commercializing therapeutics in the disease areas of immunology, inflammation, and oncology. The company pipeline products include Seralutinib, which address the cellular overgrowth, fibrosis, and vascular remodeling which underlie PAH (pulmonary arterial hypertension).

Market cap and share counts drift.

Funds holding this security

56 funds · 58 positions · $6.66M 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	$2.27M	0.00%	6,910,934 NS	FIGI
iShares Russell 2000 ETF iShares Trust	IWM	$1.59M	0.00%	4,841,508 NS	FIGI
VANGUARD EXTENDED MARKET INDEX FUND VANGUARD INDEX FUNDS	VXF	$739.7K	0.00%	2,251,634 NS	FIGI
iShares Russell 2000 Growth ETF iShares Trust	IWO	$523.3K	0.00%	1,593,081 NS	FIGI
iShares Biotechnology ETF iShares Trust	IBB	$496.2K	0.01%	1,510,536 NS	FIGI
iShares Micro-Cap ETF iShares Trust	IWC	$164.3K	0.01%	500,160 NS	FIGI
Master Small Cap Index Series Quantitative Master Series LLC	—	$108.1K	0.00%	329,052 NS	FIGI
iShares Core S&P Total U.S. Stock Market ETF iShares Trust	ITOT	$94.3K	0.00%	286,935 NS	FIGI
EQ/2000 Managed Volatility Portfolio EQ Advisors Trust	—	$69.6K	0.00%	211,999 NS	FIGI
Fidelity Small Cap Growth Index Fund Fidelity Salem Street Trust	—	$47.8K	0.00%	145,476 NS	FIGI
LVIP SSGA Small-Cap Index Fund LINCOLN VARIABLE INSURANCE PRODUCTS TRUST	—	$45.5K	0.00%	138,600 NS	FIGI
VANGUARD BALANCED INDEX FUND VANGUARD VALLEY FORGE FUNDS	—	$40.9K	0.00%	124,657 NS	FIGI
Clearwater Select Equity Fund Clearwater Investment Trust	—	$37.5K	0.01%	114,037 NS	FIGI
VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX… VANGUARD INSTITUTIONAL INDEX FUNDS	—	$35.3K	0.00%	107,368 NS	FIGI
EQ/Small Company Index Portfolio EQ Advisors Trust	—	$34.4K	0.00%	104,750 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

TICKERGOSS
FIGI_COMPOSITEBBG00MVWLLM2
FIGI_SHARE_CLASSBBG00MVWLMC1
CIK0001728117
ISINUS38341P1021
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: Gossamer Bio is a biopharmaceutical company developing therapies, 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.