Sydney deal-making circles are reportedly abuzz over speculation that New Zealand-born billionaire Nick Mowbray may be preparing a bid to acquire US-based toy giant Mattel. The move would mark one of the most significant mergers and acquisitions in the global toy industry in recent years.

Mattel, which is listed on the NASDAQ, currently has an estimated market value of approximately $4.33 billion US. Sources indicate that Mowbray, who owns the consumer products manufacturer Zuru, has engaged investment bankers in Australia to assist with the potential transaction. Zuru, headquartered in Hong Kong, has annual sales around $3.7 billion US, with forecasts suggesting this could rise to $5.5 billion next year.

Zuru gained international prominence with popular products such as Robo Fish and Bunch O Balloons, which have been strong sellers in the US market over the past decade. It is understood that over the last three to four weeks, Zuru has sought advice from Australian investment banks, with Wall Street investment firm Goldman Sachs reportedly well positioned due to an existing financing relationship with Mowbray’s business.

This emerging interest in Mattel follows reports that Authentic Brands Group, a US private equity-backed platform managing over 50 consumer brands, has also approached Mattel with a bid valued at no less than $6 billion US. Authentic Brands is said to have privately discussed offers that could value Mattel shares at over $20 US per share, a significant premium on recent trading levels below $14 US per share.

Mattel has been under pressure from activist investors, notably Ariel Investments, which holds a 5.4 percent stake in the company. Ariel has urged Mattel to explore strategic alternatives, including a potential sale, arguing that the company’s shares are undervalued given the strength of franchises such as Barbie and Hot Wheels.

The timing of the takeover interest coincides with Mattel’s recent announcement that Conde Nast chief executive Roger Lynch will succeed Ynon Kreiz as CEO. Kreiz is departing to become co-CEO of Paramount. Analysts have noted that Mattel’s valuation appears low relative to the brand equity and potential of its portfolio.

Zuru was founded by Nick Mowbray and his siblings Mat and Anna, who are originally from New Zealand. Nick Mowbray’s involvement in the toy industry dates back to his youth, when at age 12 he designed a hot-air balloon model kit that won a national science fair in New Zealand and began selling the kits with his older brother. The siblings later moved to Hong Kong and established the company’s manufacturing operations in Guangzhou, China, initially funded by a family loan.

Zuru’s products have since been stocked by major retailers such as Walmart, establishing it as a significant player in the toy market. Should Mowbray proceed with a bid for Mattel, it would set the stage for a high-profile contest among global investors seeking to consolidate some of the most recognizable brands in the industry.