TENB SCHEDULE 13G/A: SEC filing

An institutional holder

Filed with the SEC on Sep 4, 2026 · accession 0002012383-26-003262

TENB filed a SCHEDULE 13G/A (schedule 13g/a) with the SEC on Sep 4, 2026. An institutional holder filed an amended Schedule 13G for Tenable Holdings, Inc. (TENB), indicating a change in beneficial ownership position. The stock moved -0.7% by the first close after the filing.

Summary of the filing

An institutional holder filed an amended Schedule 13G for Tenable Holdings, Inc. (TENB), indicating a change in beneficial ownership position. The filing is a routine passive ownership update.

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Key details

IssuerTenable Holdings, Inc.

How TENB stock reacted

Close before

$34.49

Sep 3, 2026

First close after

-0.70%

$34.25

5 trading days

-12.70%

$30.11

Since filing

+22.15%

$42.13

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Frequently asked questions

What did TENB file with the SEC on Sep 4, 2026?

TENB filed a SCHEDULE 13G/A (SEC filing). An institutional holder filed an amended Schedule 13G for Tenable Holdings, Inc. (TENB), indicating a change in beneficial ownership position. The filing is a routine passive ownership update.

How do I read a SCHEDULE 13G/A?

A report the company filed with the SEC (the US market regulator). Start with the summary, then the key amounts and names. Compare it with the company’s earlier filings.

Why are SEC filings important?

Public companies must tell the SEC about anything that can change their value — results, leadership changes, big deals, new shares, bankruptcy. Filings are the official source, often before the news. A SCHEDULE 13G/A (schedule 13g/a): A report the company filed with the SEC (the US market regulator).

How did TENB stock react to this filing?

TENB closed at $34.49 before the filing and $34.25 on Sep 4, 2026 (-0.70%). Five trading days later: $30.11 (-12.70%).

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