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onsemi agrees to acquire Synaptics in all-stock deal worth $7 billion to build physical AI chips

· by Pondero Newsdesk

The short version

onsemi announced a $7 billion all-stock acquisition of Synaptics on June 25, 2026, combining power semiconductors with Synaptics' Edge AI compute and wireless connectivity to target autonomous driving, robotics, and AR/VR.

onsemi agrees to acquire Synaptics in all-stock deal worth $7 billion to build physical AI chips

A $7 billion semiconductor merger announced June 25 bets that the next AI race is fought at the edge, not in the cloud. onsemi (Nasdaq: ON) and Synaptics (Nasdaq: SYNA) said they signed a definitive agreement under which onsemi will acquire all of Synaptics in an all-stock transaction. The deal targets physical AI, meaning AI systems embedded in machines that sense and act in the real world rather than systems that route inference traffic through a data center.

What

The transaction assigns each Synaptics shareholder 1.350 onsemi shares, implying roughly 12% ownership of the combined company on a fully diluted basis per the joint press release on GlobeNewswire. The exchange ratio represents an approximately 19% premium to the 10-day volume-weighted average closing prices of both stocks. Total enterprise value comes to approximately $7 billion.

Both boards approved the deal unanimously. One Synaptics board member is expected to join the onsemi board at close. The transaction is expected to close in mid-2027 pending Synaptics stockholder approval and regulatory clearance.

onsemi expects the deal to add $200 million in annual synergies and to be accretive to non-GAAP EPS within 18 months of closing, with gross margins consistent with its long-term financial model, per the joint announcement.

Why it matters

The acquisition fills a gap onsemi has openly acknowledged: it supplies power semiconductors and sensors to automotive and industrial customers but has no edge compute or wireless connectivity of its own. Synaptics closes both gaps at once. Its Astra platform ships purpose-built AI processors and neural processing units for multimodal inference, paired with Wi-Fi, Bluetooth, and GPS connectivity in a single development stack.

Per onsemi, the combined company would address what it calls the four pillars of physical AI: Power, Sense, Connected Compute, and Control. The company projects that framing expands its total addressable market by $30 billion to $243 billion by 2030, per the announcement. Those are vendor projections, not third-party analyst figures.

For AI tool operators and developers building on edge hardware, this matters for one practical reason: the supply side of edge AI silicon is consolidating. Synaptics' Astra had carved out a position as a standalone embedded-AI platform vendor. After this deal closes, that platform will sit inside a larger integrated-chip supplier with direct automotive and industrial customer relationships. Developers building Astra-based products will be acquiring from onsemi rather than Synaptics. The open-source software stack that ships with Astra is expected to continue, per the announcement, but roadmap control shifts.

Context

onsemi CEO Hassane El-Khoury framed the deal around the shift from cloud AI to edge AI, citing autonomous driving, robotics, and AR/VR as the target markets, per the press release. Synaptics CEO Rahul Patel said the structure lets Synaptics shareholders participate in the combined company's growth, a common all-stock rationale when the acquiree's board believes the combined entity has better long-term upside than cash at the current price.

Qatalyst Partners, the technology-focused advisory firm, served as exclusive financial advisor to Synaptics. Morgan Stanley and J.P. Morgan advised onsemi. Skadden, Arps, Slate, Meagher & Flom provided onsemi's legal counsel; Baker McKenzie advised Synaptics.

What to watch next

Regulatory clearance will be the critical path item. The deal targets mid-2027, giving antitrust reviewers in the US and potentially the EU and China roughly 12 months. Synaptics competes in the edge compute and HMI chip markets where other consolidations have drawn scrutiny. The second milestone is the Synaptics shareholder vote, which has no date set yet. Until both clear, the Astra platform roadmap will remain formally under Synaptics' independent management.

Sources