UniCredit closes on Commerzbank as hostile bid nears its decisive deadline

UniCredit's drive to absorb Commerzbank — the most ambitious attempt at a cross-border bank merger in the eurozone in years — has entered its decisive phase, with the Milan-based lender claiming roughly 42% of its German rival even as Berlin, Commerzbank's board and the country's regulators fight to derail it.

The regular acceptance period for UniCredit's unsolicited offer closed on 16 June, and the bank published interim results on 19 June. A statutory extended window reopened on 20 June and runs until 3 July, with the final tally expected on 8 July. The outcome will determine whether Chief Executive Andrea Orcel has pulled off a takeover that European supervisors have long urged but national governments have repeatedly blocked.

An all-share offer that markets snubbed

UniCredit is offering 0.485 of its own new shares for each Commerzbank share, a ratio it left unchanged through both acceptance windows, according to Commerzbank's own shareholder guidance. The all-share structure values the German bank at around €40 billion, though the headline figure has shifted with UniCredit's stock price.

That structure is also the bid's weakness. Because Commerzbank shares traded above the offer's implied value, accepting meant swapping into UniCredit at an effective discount — and most institutional holders declined. According to Reuters, by the close of the first window UniCredit reported a direct equity stake of about 26.8%, supplemented by cash- and share-settled derivatives, with roughly 12.5% of Commerzbank's capital tendered into the offer. Bloomberg reported that this lifted UniCredit's claimed combined position to about 42%, comfortably above the 30% acceptance threshold the bank had set as a condition.

UniCredit has said full completion, which still requires regulatory approvals, is not expected before 2027.

Berlin digs in

The German government, which holds roughly 12% of Commerzbank through its Financial Market Stabilisation Fund and the state development bank KfW, has formally rejected the offer. The fund said it "rejects the aggressive approach of UniCredit" and supports the bank's strategy of independence. Officials have weighed raising the state's holding toward the 25% blocking minority that would hand Berlin a veto, a step described as a last resort.

Chancellor Friedrich Merz has framed the fight as a question of how Europe builds scale without trampling national sensitivities.

Yes, we need large banks in Europe, but that doesn't mean that every form or type of takeover is welcome in Germany.

Commerzbank's leadership has been equally firm. Its Board of Managing Directors and Supervisory Board have urged shareholders to reject the bid, arguing in their reasoned statement that "the offer provides neither an adequate premium nor a credible plan for a combination." Chief Executive Bettina Orlopp has built her defence around a standalone plan, dubbed "Momentum 2030," that includes the bank's own restructuring and roughly 3,000 job cuts, while signalling she would talk only if UniCredit raised its premium and guaranteed the business model.

A disputed tally

The endgame has turned acrimonious. Commerzbank's works council, backed by the Verdi union, has filed a criminal complaint accusing UniCredit of market manipulation under Germany's Securities Trading Act, and the financial regulator BaFin has opened a probe into how UniCredit assembled its stake. Frankfurt prosecutors have begun a preliminary examination of possible market manipulation.

At the heart of the dispute is who actually tendered shares. Commerzbank's management argues that securities-lending volumes in its stock surged roughly tenfold after the offer was announced, and contends that much of the stock UniCredit counts is borrowed rather than held by long-term investors. UniCredit rejects the accusations and has asked BaFin to scrutinise Commerzbank's own disclosures. None of the allegations has been tested in court.

Orcel, for his part, has played down the prospect of outright control. "If we get to control, which is not the expected scenario at the moment, what we would do is very clear, and the returns on that would be … very positive for our shareholders, and also for the shareholders of Commerzbank, but it's up to them," he told CNBC.

A test for banking union — and for Luxembourg

For all the noise, the contest is a proxy for a much larger question: can the eurozone forge pan-European banks big enough to rival American and Asian giants? The European Central Bank has long backed cross-border consolidation, and UniCredit casts the deal as unlocking "significant cross-border value." Yet the obstacles laid bare here — national resistance, ring-fenced capital and the still-missing common European deposit insurance scheme — are the same ones that have kept the bloc's banking union half-built for more than a decade.

That unfinished project matters in Luxembourg. The Grand Duchy is the EU's leading cross-border financial centre and the world's second-largest investment-fund hub after the United States, and its banks are supervised by the ECB under the Single Supervisory Mechanism. A genuine banking union — one that lets capital and lenders move freely across borders — would reshape the competitive landscape for a hub whose business is, by design, pan-European. Both protagonists already operate there: UniCredit has run a Luxembourg subsidiary since 1987, and Commerzbank maintains its own presence in the country.

Whether the July tally delivers Orcel a controlling position or merely a large, contested minority, the saga has already shown how far ambition for a single European banking market still runs ahead of the rules meant to enable it.