Tenable Holdings, Inc. (TENB)
Nasdaq: TENB · Services-Prepackaged Software · Columbia, MD · filing with the SEC since 2016
Grade5.3
◀ Past 6.2● Present 4.8▶ Future 5.3
Who owns Tenable Holdings, Inc.
As filed with the SECHolders of 5% or more
4
Blackrock, Inc. holds 17.5% of Common Stock, as its SCHEDULE 13G/A filed Sep 4, 2026 says.
Directors and officers
12
report now, of 20 people on the record since 2018. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 4 named at left.
Holders of 5% or moreshare of the class, as filed
Blackrock, Inc.
SCHEDULE 13G/A · filed Sep 4, 2026 · Common Stock · 10.3% in Jun 4, 2026
Ameriprise Financial, Inc.
SCHEDULE 13G/A · filed Jun 5, 2026 · Common Stock · 7.4% in May 15, 2026
Vanguard Portfolio Management
SCHEDULE 13G/A · filed Sep 4, 2026 · Common Stock · 8.47% in Apr 29, 2026
Vanguard Capital Management
SCHEDULE 13G · filed Apr 30, 2026 · Common Stock
Fmr LLC
SCHEDULE 13G/A · filed Jul 8, 2025 · COMMON STOCK · reported falling below 5%, from 9.8% in May 12, 2025
The Vanguard Group
SCHEDULE 13G/A · filed Mar 27, 2026 · Common Stock · reported falling below 5%, from 12.3% in Oct 31, 2025
What TENB reports owning in othersstakes of 5% or more, and other ties
Other ties the annual report names
Apex Security, Inc
A company bought · acquisition · Jun 2025 · owns, named in the 10-K filed Feb 27, 2026
Vulcan Cyber Ltd
A company bought · acquisition · Feb 2025 · owns, named in the 10-K filed Feb 27, 2026
Eureka
A company bought · acquisition · Jun 2024 · owns, named in the 10-K filed Feb 27, 2026
11 subsidiaries in 4 countries, from the list filed with the 10-K filed Feb 27, 2026.
Insider tradesForm 4
9sales
3purchases
1sales on a scheduled plan
3people selling
$4.5Msold, in dollars
$600,000bought, in dollars
Open-market trades on Form 4 from Nov 4, 2025 to Nov 4, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
2026 runs to Nov 4, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window6 of 40 on the roster
| Person | Role as filed | Sales | Sold | On a plan | Buys | Bought |
|---|---|---|---|---|---|---|
| Seawell A Brooke | director | 3 | $4.3M | 0 | 0 | $0 |
| Anschutz Barron | other | 1 | $500,000 | 0 | 0 | $0 |
| Vicks Raymond Jr. | director | 1 | $100,000 | 1 | 1 | $100,000 |
| Zecher Linda Kay | director | 5 | $100,000 | 0 | 0 | $0 |
| Brown Matthew Charles | Chief Financial Officer | 0 | $0 | 0 | 1 | $300,000 |
| Coviello Arthur W Jr | director | 0 | $0 | 0 | 1 | $300,000 |