---
title: "Opthea Delisting from Nasdaq Takes Effect"
description: "Opthea Limited has voluntarily delisted its American Depositary Shares from Nasdaq, effective November 21, 2025. The company will file Form 15F to deregister in the U.S., with deregistration expected "
type: "news"
locale: "en"
url: "https://longbridge.com/en/news/266802639.md"
published_at: "2025-11-20T21:02:51.000Z"
---

# Opthea Delisting from Nasdaq Takes Effect

> Opthea Limited has voluntarily delisted its American Depositary Shares from Nasdaq, effective November 21, 2025. The company will file Form 15F to deregister in the U.S., with deregistration expected 90 days post-filing. Opthea's shares remain listed on the Australian Securities Exchange, though trading is suspended. ADSs may still trade in the U.S. OTC market.

Opthea Limited has announced that the voluntary delisting of its American Depositary Shares (ADSs) from the Nasdaq Global Select Market became effective on November 21, 2025. Following the delisting, Opthea will file a Form 15F to deregister and terminate its reporting obligations in the United States, with deregistration expected to become effective 90 days after the filing. The company’s ordinary shares will continue to be listed and primarily traded on the Australian Securities Exchange (ASX), although trading remains suspended under ASX Listing Rule 17.3. After leaving Nasdaq, Opthea’s ADSs may still be traded through the U.S. Over-The-Counter (OTC) market. Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Opthea Limited published the original content used to generate this news brief via EDGAR, the Electronic Data Gathering, Analysis, and Retrieval system operated by the U.S. Securities and Exchange Commission (Ref. ID: 0001193125-25-289730), on November 20, 2025, and is solely responsible for the information contained therein. © Copyright 2025 - Public Technologies (PUBT) Original Document: here

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> **Disclaimer**: This article is for reference only and does not constitute any investment advice.