Pac-Man Defense in Australia: 2026 Strategies Against Hostile Takeovers

The Pac-Man Defense isn’t your average anti-takeover tactic. Instead of passively resisting, the target company launches its own bid to acquire the would-be acquirer. It’s aggressive, risky, and can electrify the market.

• Mechanism: The target company makes a counter-offer to buy shares in the hostile bidder.

• Objective: Discourage the takeover by forcing the acquirer to defend itself, often driving up costs or deterring the original bid.

• Risks: Requires significant financial firepower and can backfire if the target overextends itself.

While rare in Australia, the Pac-Man Defense has seen renewed attention in 2026 due to a surge in cross-border M&A activity and a wave of opportunistic bids amid ongoing economic volatility.

This year, several factors are fueling interest in bold defensive strategies:

• Increased foreign interest: ASX-listed firms in energy, tech, and critical infrastructure are frequent takeover targets as international investors seek Australian assets.

• Regulatory changes: The Foreign Investment Review Board (FIRB) has updated its screening thresholds and review timelines, impacting the calculus for hostile bids.

• Shareholder activism: Large institutional investors are demanding stronger defenses against undervalued offers.

For example, in early 2026, a major Australian mining company faced an unsolicited bid from a US-based rival. Instead of simply rejecting the offer, the board launched its own counter-bid, acquiring a strategic stake in the acquirer. While the move stunned the market, it ultimately forced the bidder to negotiate on more favourable terms—or risk being swallowed themselves.

Although Australia has not seen as many Pac-Man scenarios as the US or UK, the tactic has made waves in high-profile cases. In the 1980s, US firm Bendix tried to take over Martin Marietta, only to find itself the target of a counter-bid. While not directly mirrored in Australia, the playbook is increasingly studied by boards facing aggressive suitors.

Australian law permits the Pac-Man Defense, but directors must tread carefully. The Corporations Act 2001 mandates that directors act in the best interests of the company. Any counter-bid must be justifiable to shareholders and regulators alike. The Takeovers Panel also scrutinizes tactics that could frustrate the acquisition process or harm minority shareholders.

Key legal updates in 2026:

• FIRB review: Counter-bids involving foreign acquirers now require explicit FIRB approval, adding time and complexity.

• Disclosure: Enhanced continuous disclosure obligations mean companies must promptly inform the market of any Pac-Man moves.

For investors, a Pac-Man Defense signals both risk and opportunity. It can lead to higher bid premiums, but also protracted battles that erode value. For boards, the tactic is a last resort—a nuclear option when all other defenses fail.

Considerations for 2026:

• War chest: Companies must ensure they have the financial resources to sustain a counter-bid, including access to debt or friendly investors.

• Communication: Transparent engagement with shareholders is crucial to maintain trust and avoid backlash.

• Alternatives: Traditional defenses—such as seeking a white knight or deploying poison pills—may offer less risky ways to fend off hostile suitors.

Ultimately, the Pac-Man Defense is a high-stakes gambit. It can secure independence or spark an all-out corporate brawl. As M&A heats up in 2026, expect to see more Australian boards at least considering this bold move—if only as a deterrent against opportunistic bids.