Greg Williams

Clayton Utz
Partner Sydney

All matters involving pharma companies seem to cross his path; everybody goes to Greg, he's so well regarded and respected.

– Chambers Asia Pacific

Overview

Greg is internationally recognised by clients and legal directories as a leading litigator in class actions, product liability litigation and regulatory matters across the pharmaceutical, medical devices and automotive industries.

Greg is the National Practice Head of the Disputes stream.

Notable Work
  • Bayer: acting in a class action commenced in the Victorian Supreme Court relating to the Essure contraceptive device. The first instance trial completed in August 2023 and judgment is currently reserved.
  • VW Group: acted in five consumer class actions in the Federal Court of Australia, in respect of diesel emissions. Those class actions were case managed together with ACCC enforcement proceedings. All matters were settled in late 2019 and the class action settlements were approved by the Court in 2020.
  • Subaru Australia: acted in the defence of the Takata Airbag class actions.
  • App platform: acting in class action proceedings commenced on behalf of consumers and developers seeking compensation arising from alleged overpayments on in-app purchases.
  • Hino Motors: acting in a class action in relation to alleged misconduct concerning engine certification of certain Hino diesel vehicles.
  • Commonwealth Bank: acted in the Storm Financial Class Action. This matter ran to trial in 2013, but was settled in late 2014 before judgment was delivered.
  • Merck & Co., Inc. and Merck Sharp & Dohme (Australia) Pty Limited: acted successfully for in the Vioxx class action, including appearing as junior counsel at the first instance trial.
  • Novartis AG: acted for in in litigation against the Department of Health in respect of the Minister's refusal to exercise discretion to reverse a price reduction.
  • Various clients: acts for clients in relation to the operation of the Pharmaceutical Benefits Scheme, including strategy for engaging with the Department of Health on major and minor submissions to the PBAC and rights of review and appeal from recommendations of the PBAC.
  • GD Searle & Co and Monstanto Corporation: acted successfully in the Australian proceedings involving the Gravigard (Copper 7) intrauterine contraceptive device.
Insights
Manipulative and false practices, cost of living and unfair trading practices: ACCC priorities for 2026-27
20 Feb 2026 | Article
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Court presses the button [battery] on $14m penalty for City Beach
17 Feb 2026 | Article
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TGA's compliance principles for 2026 and 2027: A focus on proactive and risk-based enforcement in the digital landscape
6 Feb 2026 | Article
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Media release: Clayton Utz advises Exactech, Inc. on Australian aspects of global restructure
19 Nov 2025 | Media Release
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Certainty for class action funders as High Court greenlights common fund orders, but plaintiff firms miss out
6 Aug 2025 | Article
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High Court clarifies the availability of pre-mediation class closure: Lendlease v Pallas
25 Jun 2025 | Article
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Navigating the 2025 AHPRA Guidelines on Cosmetic Procedures: Here's what you need to know
16 Jun 2025 | Article
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TGA injecting new life into renewed cosmetics guidance
4 Jun 2025 | Article
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TGA enforcement actions rise as Court orders the biggest Therapeutic Goods Act penalty yet
4 Nov 2024 | Article
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International Comparative Legal Guide - Drug and Medical Device Litigation Australia 2023
16 Oct 2024 | Document
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Media release: Insurance disputes lawyer Sophy Woodward joins Clayton Utz partnership
3 Oct 2024 | Media Release
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Class action payday: decoding funding payment trends
10 Sep 2024 | Article
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Global Legal Insights - Pricing & Reimbursement 2024
6 Sep 2024 | Document
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International Comparative Legal Guide - Pharmaceutical Advertising 2024
8 Aug 2024 | Document
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The ACCC's 2024-25 Product Safety Priorities: children’s products, online safety, sustainability, emerging technologies and product safety data
18 Jul 2024 | Article
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Solicitors' CFOmg! – Federal Court has the power to make common fund orders in favour of solicitors (but should it use it)?
11 Jul 2024 | Article
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Artificial intelligence and legal practice: new guidelines for practitioners
11 Jul 2024 | Article
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Statutory price reduction of pharmaceutical items and applying the 12.5% Test
11 Jul 2024 | Article
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Chambers Global Practice Guide - Digital Healthcare 2024
27 Jun 2024 | Document
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Chambers Global Practice Guide - Product Liability & Safety 2024
20 Jun 2024 | Document
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CFOs are no longer UFOs: Galactic class action is good to go with its common fund order
23 May 2024 | Article
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New product standards for furniture: navigating the new regime to address toppling furniture
21 May 2024 | Article
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Class closure in NSW: gone but not forgotten?
21 May 2024 | Article
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International Comparative Legal Guide - Drug & Medical Device Litigation 2024
19 Apr 2024 | Document
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Mandatory fuel label not misleading conduct, says High Court
20 Dec 2023 | Article
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Justice in the class action context: recent developments in litigation funding
24 Nov 2023 | Article
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"Soft class closure" orders increase the chance of settlement at mediation
20 Oct 2023 | Article
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International Comparative Legal Guide - Pharmaceutical Advertising Australia 2023
23 Aug 2023 | Document
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Chambers Global Practice Guide - Digital Healthcare 2023
23 Aug 2023 | Document
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Media Release: Clayton Utz claims several finalist spots in 2023 legal industry awards
23 Jun 2023 | Media Release
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Automotive snapshot: fuel consumption labels, cartels, environmental claims, class actions
27 Apr 2023 | Article
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Litigation funders watching for certainty on common fund orders in class actions
30 Mar 2023 | Article
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High Court ruling on foreign residents as group members in Australian class actions raises practical issues for respondents
12 Oct 2022 | Article
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Chambers Global Practice Guide - Product Liability and Safety 2022
26 Sep 2022 | Document
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Chambers Global Practice Guide - Medical Devices & Consumer Health Products 2022
1 Sep 2022 | Document
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Chambers Global Practice Guide - Digital Healthcare 2022
1 Sep 2022 | Document
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Global Legal Insights - Pricing and Reimbursement 2022
1 Sep 2022 | Document
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Court of Appeal upholds decision on “misleading” fuel labelling
18 Aug 2022 | Article
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From culture to compliance: Regulators confirm focus on “greenwashing” and assessment of climate change risks
22 Jun 2022 | Article
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Full Federal Court decision lowers the bar for litigation funders
22 Jun 2022 | Article
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State of Play: The rise of climate litigation in Australia
14 Jun 2022 | Article
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Can class action reform be expected from the new Labor Government - not a question of "if", but "when"?
26 May 2022 | Article
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Does the limitation clock tick on after an abandoned class action? The Federal Court has its say
12 May 2022 | Article
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International Comparative Legal Guide - Drug and Medical Device Litigation 2022
26 Apr 2022 | Document
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Automotive snapshot: RVSA transitional period, regulators' priorities, General Safety Provision, automotive class actions
21 Apr 2022 | Article
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After 30 years, class action regime still plagued with uncertainty
7 Mar 2022 | Article
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Supreme Court of Victoria grants first successful application to secure contingency fee class action funding arrangement
3 Mar 2022 | Article
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Greenfield opportunity for statutory class action regime in New Zealand: Law Commission consults on proposal
11 Nov 2021 | Article
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Protecting or creating a stumbling block for future class members: proposed reforms to litigation funding payouts
11 Nov 2021 | Article
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First contingency fee decision is another example of court discretion over funding class actions
28 Oct 2021 | Article
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