TENBTenable Holdings, Inc.

CSNasdaq (XNAS)·USD

Identity

Security key: 22428
Ticker: TENB
Type: CS — Common Stock
Exchange: Nasdaq(XNAS)
Venue group: NASDAQ
Operating MIC: XNAS
Market: stocks
Locale: us
Currency: USD
Listed: 2018-07-26
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: TENB

Detail

Enriched 2026-08-14 20:47

Market cap: $4,075,179,371
Shares outstanding (class): 110,139,983
Shares outstanding (weighted): 110,139,983
SIC: 7372 SERVICES-PREPACKAGED SOFTWARE
Employees: 1,995
Location: COLUMBIA, MD
Homepage: https://www.tenable.com
Description: Founded in 2002, Tenable is a cybersecurity company that began providing vulnerability management solutions under its Nessus software. In recent years, Tenable has expanded its portfolio to provide a broader range of exposure management modules. Solutions include cloud security and compliance, active directory management, operational technology security and advanced vulnerability analytics. The Maryland-based company went public in 2018.

Market cap and share counts drift.

Funds holding this security

129 funds · 132 positions · $471.36M 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	$64.13M	0.00%	3,791,072 NS	FIGI
Amplify Cybersecurity ETF Amplify ETF Trust	—	$57.32M	3.05%	3,388,746 NS	FIGI
iShares Russell 2000 ETF iShares Trust	IWM	$49.21M	0.07%	2,909,125 NS	FIGI
VANGUARD SMALL-CAP INDEX FUND VANGUARD INDEX FUNDS	VB	$46.25M	0.03%	2,734,108 NS	FIGI
First Trust Nasdaq Cybersecurity ETF First Trust Exchange-Traded Fund II	CIBR	$39.55M	0.42%	2,338,226 NS	FIGI
VANGUARD SMALL-CAP GROWTH INDEX FUND VANGUARD INDEX FUNDS	VBK	$25.86M	0.07%	1,529,057 NS	FIGI
VANGUARD EXTENDED MARKET INDEX FUND VANGUARD INDEX FUNDS	VXF	$22.33M	0.03%	1,320,266 NS	FIGI
Fidelity Enhanced Small Cap ETF Fidelity Covington Trust	FESM	$21.46M	0.52%	1,268,451 NS	FIGI
iShares Russell 2000 Growth ETF iShares Trust	IWO	$16.33M	0.13%	965,698 NS	FIGI
VANGUARD STRATEGIC EQUITY FUND VANGUARD HORIZON FUNDS	—	$14.11M	0.14%	833,959 NS	FIGI
Fidelity Enhanced Large Cap Core ETF Fidelity Covington Trust	FELC	$10.75M	0.17%	635,568 NS	FIGI
Fidelity Enhanced Large Cap Growth ETF Fidelity Covington Trust	FELG	$10.49M	0.22%	620,395 NS	FIGI
iShares Expanded Tech-Software Sector ETF iShares Trust	IGV	$8.87M	0.09%	524,587 NS	FIGI
Bridge Builder Small/Mid Cap Growth Fund Bridge Builder Trust	—	$7.83M	0.08%	463,044 NS	FIGI
Counterpoint Quantitative Equity ETF NORTHERN LIGHTS FUND TRUST III	CPAI	$4.20M	2.00%	248,472 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

TICKERTENB
FIGI_COMPOSITEBBG00LBLCD02
FIGI_SHARE_CLASSBBG00LBLCDR3
CIK0001660280
ISINUS88025T1025
Resolved through OpenFIGI from a holdings ISIN, not supplied by the securities vendor.

Identifiers

Classification

classification.v_security_classification

Asset class: Equity
Sector: Information Technology
Industry: Software
Source: LLMunreviewed
Self-reported confidence: 0.95
Model: deepseek
Rationale: Tenable is a cybersecurity software company, classified under prepackaged software.

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.