Company · Ownership research

Tenable Holdings, Inc. TENB

CIK 0001660280 · CUSIP 88025T102

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 88025T102 (TENB), not CUSIP 88025T902 (TENB), CUSIP 88025T952 (TENB), and does not merge CUSIPs.

This page lists the top 20 of 279 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	FMR LLC CIK 315066 · View history	$653.17M 13,214,022 shares	0.04%	+587.51K(+4.70%)Added	SEC filing ↗ May 13, 2024	▾
02	VANGUARD GROUP INC CIK 102909 · View history	$620.02M 12,543,352 shares	0.01%	+32.53K(+0.30%)Added	SEC filing ↗ May 10, 2024	▾
03	BlackRock Inc. CIK 1364742 · View history	$513.67M 10,391,903 shares	0.01%	-132.53K(-1.30%)Reduced	SEC filing ↗ May 10, 2024	▾
04	FIRST TRUST ADVISORS LP CIK 1125816 · View history	$236.79M 4,790,322 shares	0.24%	+337.77K(+7.60%)Added	SEC filing ↗ May 13, 2024	▾
05	MACKENZIE FINANCIAL CORP CIK 919859 · View history	$183.92M 3,720,809 shares	0.27%	+682.66K(+22.50%)Added	SEC filing ↗ May 10, 2024	▾
06	WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC CIK 1644956 · View history	$172.58M 3,491,301 shares	0.45%	+585.56K(+20.20%)Added	SEC filing ↗ May 8, 2024	▾
07	AMERIPRISE FINANCIAL INC CIK 820027 · View history	$171.39M 3,467,416 shares	0.05%	+320.43K(+10.20%)Added	SEC filing ↗ May 15, 2024	▾
08	RGM Capital, LLC CIK 1323953 · View history	$167.38M 3,386,109 shares	6.75%	-451.86K(-11.80%)Reduced	SEC filing ↗ May 14, 2024	▾
09	VOYA INVESTMENT MANAGEMENT LLC CIK 1068837 · Amended · View history	$154.14M 3,118,273 shares	0.15%	+106.27K(+3.50%)Added	SEC filing ↗ Feb 7, 2025	▾
10	STATE STREET CORP CIK 93751 · View history	$138.58M 2,803,612 shares	0.01%	+74.40K(+2.70%)Added	SEC filing ↗ May 15, 2024	▾
11	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$129.66M 2,622,799 shares	0.01%	+107.39K(+4.30%)Added	SEC filing ↗ May 13, 2024	▾
12	Pictet Asset Management Holding SA CIK 1993888 · View history	$105.57M 2,137,254 shares	0.11%	-432.56K(-16.80%)Reduced	SEC filing ↗ May 14, 2024	▾
13	ArrowMark Colorado Holdings LLC CIK 1483859 · View history	$82.19M 1,662,729 shares	0.92%	-604.11K(-26.60%)Reduced	SEC filing ↗ May 15, 2024	▾
14	Champlain Investment Partners, LLC CIK 1315478 · View history	$78.65M 1,591,147 shares	0.45%	+593.53K(+59.50%)Added	SEC filing ↗ May 13, 2024	▾
15	Ion Asset Management Ltd. CIK 1603837 · View history	$75.78M 1,533,045 shares	5.54%	+1.39M(+995.00%)Added	SEC filing ↗ May 15, 2024	▾
16	NORGES BANK CIK 1374170 · Amended · View history	$70.78M 1,432,009 shares	0.01%	+203.87K(+16.60%)Added	SEC filing ↗ May 14, 2024	▾
17	MORGAN STANLEY CIK 895421 · Amended · View history	$64.73M 1,309,463 shares	0.01%	+184.03K(+16.40%)Added	SEC filing ↗ Oct 17, 2024	▾
18	AMERICAN CENTURY COMPANIES INC CIK 748054 · View history	$63.68M 1,288,238 shares	0.04%	-4.11K(-0.30%)Reduced	SEC filing ↗ May 14, 2024	▾
19	NORTHERN TRUST CORP CIK 73124 · View history	$55.95M 1,131,898 shares	0.01%	-16.48K(-1.40%)Reduced	SEC filing ↗ May 14, 2024	▾
20	Penserra Capital Management LLC CIK 1593324 · View history	$55.69M 1,126,607 shares	0.70%	+1.13MNew	SEC filing ↗ May 15, 2024	▾

Showing 20 / 279 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

279

Cancelled or null records excluded

Disclosed shares

108,639,326

Not deduplicated across managers

Disclosed value

$5.37B

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

Tenable Holdings, Inc. · Q1 2024

Explore all 279 reporting institutions.

This page includes 20 of 279 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.

Download CSV
Earlier quarters
Advanced screening & filtering
API & AI access

Already have an account?

＋ New accounts get free API credits to explore data beyond ownership filings.

For AI agents & developers

The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. This page lists 20 of 279 reporting institutions; totals use the complete disclosed data.

Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP / CLI.

MCP  https://api.akkrudata.ai/mcp

akkru_institutional_holdings
{"action":"holders","cusip":"88025T102","quarter":"2024Q1","type":"positions","page_size":100}

Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.

MCP endpoint: https://api.akkrudata.ai/mcp
API / MCP / CLI documentation: /documents
llms.txt: /llms.txt

Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.