Who owns Tenable Holdings (TENB)
Which tracked institutional funds hold TENB, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See TENB company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
Conviction spread
TENB’s largest tracked holder by dollar value, AMERIPRISE FINANCIAL INC, sizes it at 0.1% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.1pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in TENB divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2026-Q1 and 2026-Q2, we do not read how tracked institutions changed their TENB positions: many holders could not be matched across the two filings, most often because the security’s identifier changed and our mapping is incomplete, or because funds are still filing for the newer quarter. Over the same quarter, open-market insider Form 4s were net purchases.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Institutional holders
One row per tracked fund, most shares held first (every row is from one quarter; reported value breaks ties). “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding.
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| AMERIPRISE FINANCIAL INC added | 15,226,424 | $562M | 14.3% | 2026-Q2 |
| BlackRock, Inc. added | 13,513,760 | $498M | 12.7% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC added | 10,236,092 | $378M | 9.6% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC trimmed | 4,996,097 | $184M | 4.7% | 2026-Q2 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP added | 4,406,990 | $163M | 4.1% | 2026-Q2 |
| FMR LLC added | 4,138,168 | $153M | 3.9% | 2026-Q2 |
| STATE STREET CORP added | 3,236,610 | $119M | 3.0% | 2026-Q2 |
| FIRST TRUST ADVISORS LP added | 2,973,863 | $110M | 2.8% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 2,961,886 | $109M | 2.8% | 2026-Q2 |
| SHAPIRO CAPITAL MANAGEMENT LLC trimmed | 2,883,052 | $106M | 2.7% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC added | 2,447,318 | $90M | 2.3% | 2026-Q2 |
| MORGAN STANLEY added | 2,250,650 | $83M | 2.1% | 2026-Q2 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE added | 2,081,312 | $77M | 2.0% | 2026-Q2 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. added | 2,018,248 | $74M | 1.9% | 2026-Q2 |
| AQR CAPITAL MANAGEMENT LLC added | 1,796,634 | $66M | 1.7% | 2026-Q2 |
| JANE STREET GROUP, LLC added | 1,780,120 | $66M | 1.7% | 2026-Q2 |
| VOYA INVESTMENT MANAGEMENT LLC added | 1,606,839 | $59M | 1.5% | 2026-Q2 |
| BARCLAYS PLC trimmed | 1,335,118 | $49M | 1.3% | 2026-Q2 |
| Freestone Grove Partners LP added | 1,152,100 | $42M | 1.1% | 2026-Q2 |
| NORTHERN TRUST CORP added | 1,100,979 | $41M | 1.0% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP added | 1,081,767 | $40M | 1.0% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 1,057,622 | $39M | 1.0% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC added | 972,922 | $36M | 0.9% | 2026-Q2 |
| RENAISSANCE TECHNOLOGIES LLC trimmed | 970,800 | $36M | 0.9% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ trimmed | 837,409 | $31M | 0.8% | 2026-Q2 |
| SEB Asset Management AB trimmed | 833,411 | $31M | 0.8% | 2026-Q2 |
| UBS Group AG trimmed | 799,933 | $30M | 0.8% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO trimmed | 794,744 | $29M | 0.7% | 2026-Q2 |
| FEDERATED HERMES, INC. trimmed | 783,652 | $29M | 0.7% | 2026-Q2 |
| Bank of New York Mellon Corp trimmed | 756,830 | $28M | 0.7% | 2026-Q2 |
| Nuveen, LLC trimmed | 676,539 | $25M | 0.6% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP trimmed | 596,935 | $22M | 0.6% | 2026-Q2 |
| Point72 Asset Management, L.P. added | 567,890 | $21M | 0.5% | 2026-Q2 |
| Connor, Clark & Lunn Investment Management Ltd. added | 550,269 | $20M | 0.5% | 2026-Q2 |
| MetLife Investment Management, LLC added | 545,287 | $20M | 0.5% | 2026-Q2 |
| IEQ CAPITAL, LLC added | 525,271 | $19M | 0.5% | 2026-Q2 |
| PINNACLE ASSOCIATES LTD added | 500,510 | $18M | 0.5% | 2026-Q2 |
| CITADEL ADVISORS LLC trimmed | 461,088 | $17M | 0.4% | 2026-Q2 |
| Vontobel Holding Ltd. added | 422,656 | $16M | 0.4% | 2026-Q2 |
| ExodusPoint Capital Management, LP trimmed | 392,383 | $14M | 0.4% | 2026-Q2 |
| Portolan Capital Management, LLC new | 387,923 | $14M | 0.4% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS trimmed | 348,683 | $13M | 0.3% | 2026-Q2 |
| Delta Global Management LP new | 320,500 | $12M | 0.3% | 2026-Q2 |
| SCHRODER INVESTMENT MANAGEMENT GROUP new | 312,782 | $10M | 0.3% | 2026-Q2 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 295,039 | $11M | 0.3% | 2026-Q2 |
| NORDEA INVESTMENT MANAGEMENT AB trimmed | 275,388 | $10M | 0.3% | 2026-Q2 |
| PANAGORA ASSET MANAGEMENT INC trimmed | 264,071 | $10M | 0.2% | 2026-Q2 |
| RAYMOND JAMES FINANCIAL INC added | 262,452 | $10M | 0.2% | 2026-Q2 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added | 253,666 | $9M | 0.2% | 2026-Q2 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND trimmed | 248,000 | $9M | 0.2% | 2026-Q2 |
| DEUTSCHE BANK AG\ trimmed | 244,361 | $9M | 0.2% | 2026-Q2 |
| Swiss National Bank trimmed | 230,500 | $9M | 0.2% | 2026-Q2 |
| FIRETRAIL INVESTMENTS PTY LTD trimmed | 228,861 | $8M | 0.2% | 2026-Q2 |
| Jupiter Topco LLC new | 226,837 | $8M | 0.2% | 2026-Q2 |
| CITIGROUP INC added | 225,675 | $8M | 0.2% | 2026-Q2 |
| Concentric Capital Strategies, LP new | 214,009 | $8M | 0.2% | 2026-Q2 |
| SummitTX Capital, L.P. new | 212,738 | $8M | 0.2% | 2026-Q2 |
| Private Advisor Group, LLC new | 202,517 | $7M | 0.2% | 2026-Q2 |
| READYSTATE ASSET MANAGEMENT LP added | 200,000 | $7M | 0.2% | 2026-Q2 |
| STATE OF WISCONSIN INVESTMENT BOARD added | 193,680 | $7M | 0.2% | 2026-Q2 |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC trimmed | 191,965 | $7M | 0.2% | 2026-Q2 |
| NICHOLAS COMPANY, INC. added | 191,617 | $7M | 0.2% | 2026-Q2 |
| HSBC HOLDINGS PLC added | 183,446 | $7M | 0.2% | 2026-Q2 |
| XTX Topco Ltd trimmed | 182,484 | $7M | 0.2% | 2026-Q2 |
| MACKENZIE FINANCIAL CORP trimmed | 179,680 | $7M | 0.2% | 2026-Q2 |
| IQ EQ FUND MANAGEMENT (IRELAND) Ltd added | 174,357 | $6M | 0.2% | 2026-Q2 |
| WELLINGTON MANAGEMENT GROUP LLP new | 172,364 | $6M | 0.2% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 158,614 | $6M | 0.1% | 2026-Q2 |
| Creative Planning added | 157,168 | $6M | 0.1% | 2026-Q2 |
| JPMORGAN CHASE & CO trimmed | 154,249 | $5M | 0.1% | 2026-Q2 |
| Invesco Ltd. added | 153,676 | $6M | 0.1% | 2026-Q2 |
| RHUMBLINE ADVISERS added | 146,607 | $5M | 0.1% | 2026-Q2 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed | 130,366 | $5M | 0.1% | 2026-Q2 |
| STIFEL FINANCIAL CORP added | 129,784 | $5M | 0.1% | 2026-Q2 |
| Pathstone Holdings, LLC trimmed | 124,829 | $5M | 0.1% | 2026-Q2 |
| Quantinno Capital Management LP trimmed | 124,184 | $5M | 0.1% | 2026-Q2 |
| Legal & General Group Plc added | 123,341 | $5M | 0.1% | 2026-Q2 |
| VICTORY CAPITAL MANAGEMENT INC trimmed | 121,600 | $4M | 0.1% | 2026-Q2 |
| VANGUARD ASSET MANAGEMENT, Ltd added | 120,889 | $4M | 0.1% | 2026-Q2 |
| Russell Investments Group, Ltd. trimmed | 115,555 | $4M | 0.1% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN added | 110,290 | $4M | 0.1% | 2026-Q2 |
| Hilton Capital Management, LLC added | 109,542 | $4M | 0.1% | 2026-Q2 |
| Katamaran Capital LLP new | 107,863 | $4M | 0.1% | 2026-Q2 |
| Robeco Institutional Asset Management B.V. added | 106,244 | $4M | 0.1% | 2026-Q2 |
| CLOUGH CAPITAL PARTNERS L P new | 104,911 | $4M | 0.1% | 2026-Q2 |
| Tidal Investments LLC added | 103,783 | $4M | 0.1% | 2026-Q2 |
| Mariner, LLC added | 99,199 | $4M | 0.1% | 2026-Q2 |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. added | 98,758 | $4M | 0.1% | 2026-Q2 |
| VIRGINIA RETIREMENT SYSTEMS ET Al trimmed | 97,122 | $4M | 0.1% | 2026-Q2 |
| IMC-Chicago, LLC new | 94,046 | $3M | 0.1% | 2026-Q2 |
| AMERICAN CENTURY COMPANIES INC added | 90,296 | $3M | 0.1% | 2026-Q2 |
| Graphene Investments SAS trimmed | 90,200 | $3M | 0.1% | 2026-Q2 |
| S SQUARED TECHNOLOGY, LLC new | 90,000 | $3M | 0.1% | 2026-Q2 |
| Prime Capital Investment Advisors, LLC trimmed | 87,675 | $3M | 0.1% | 2026-Q2 |
| Corient Private Wealth LP trimmed | 83,911 | $3M | 0.1% | 2026-Q2 |
| SIMPLEX TRADING, LLC added | 78,691 | $3M | 0.1% | 2026-Q2 |
| Jasper Ridge Partners, L.P. | 75,679 | $3M | 0.1% | 2026-Q2 |
| Cerity Partners LLC added | 71,248 | $3M | 0.1% | 2026-Q2 |
| ALGERT GLOBAL LLC trimmed | 70,834 | $3M | 0.1% | 2026-Q2 |
| Vinva Investment Management Ltd added | 55,779 | $3M | 0.1% | 2026-Q2 |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.