XENE SCHEDULE 13G/A: SEC filing

Wellington Management Group LLP and affiliated entities

Filed with the SEC on · accession 0000902219-26-000248

XENE filed a SCHEDULE 13G/A (schedule 13g/a) with the SEC on Aug 13, 2026. Wellington Management Group LLP and affiliated entities filed a joint filing agreement as part of a Schedule 13G/A regarding their ownership of Xenon Pharmaceuticals common stock. The stock moved -1.6% by the first close after the filing.

Summary of the filing

Wellington Management Group LLP and affiliated entities filed a joint filing agreement as part of a Schedule 13G/A regarding their ownership of Xenon Pharmaceuticals common stock. The filing is an administrative amendment to a passive ownership disclosure.

Key details

Filer / institutional investorWellington Management Group LLP
Co-filerWellington Group Holdings LLP
Co-filerWellington Investment Advisors Holdings LLP
Subject companyXenon Pharmaceuticals Inc.
Compliance manager, wellington management group llpMatthew Revell

How XENE stock reacted

Close before

$65.26

Aug 12, 2026

First close after

-1.58%

$64.23

5 trading days

-4.51%

$62.32

Since filing

-39.98%

$39.17

✦ Ask GOAX AI about this filing — what it means for XENE, what changed since its last filings and what to watch next.

Try it free for 7 days

🔔 Want to stay updated on new SEC filings for XENE?

Click here

Frequently asked questions

What did XENE file with the SEC on Aug 13, 2026?

XENE filed a SCHEDULE 13G/A (SEC filing). Wellington Management Group LLP and affiliated entities filed a joint filing agreement as part of a Schedule 13G/A regarding their ownership of Xenon Pharmaceuticals common stock. The filing is an administrative amendment to a passive ownership disclosure.

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 XENE stock react to this filing?

XENE closed at $65.26 before the filing and $64.23 on Aug 13, 2026 (-1.58%). Five trading days later: $62.32 (-4.51%).

Other XENE SEC filings

Get alerts when XENE files with the SEC, plus live charts, key levels and news for 13,000+ stocks.

Try SEPT free for 7 days