# ON Semiconductor increases offer for Allegro Microsystems to $6.9B

ON Semiconductor Corp. sent a new offer to acquire Allegro Microsystems Inc. for $6.9 billion, including debt, at $35.10 per share, up from the previously proposed $34.50 per share.

- Type: Acquisition
- Announced: 2025-03-01
- Where: United States
- Value: $6.90B
- Status: announced
- Products: semiconductor devices, magnetic field sensors
- Sectors: [Semiconductors and Industrial Electronics](https://endata.com/sectors/semiconductors-electronics.md)

## Companies

- [ON Semiconductor](https://endata.com/companies/15226.md) (acquirer)
- [Sanken Electric](https://endata.com/companies/27344.md) (investor)
- [Allegro MicroSystems](https://endata.com/companies/28898.md) (target)

## Sources

- [akm.ru](https://www.akm.ru/eng/news/american-on-semiconductor-has-increased-its-offer-for-allegro-to-6-9-billion/), 2025-04-07: "Onsemi increased its offers to $6.9 billion, including debt obligations (up to $35.10 from the previously proposed $34.50 per share)."
- [akm.ru](https://www.akm.ru/eng/news/american-onsemi-plans-to-acquire-allegro-microsystems-for-6-9-billion/), 2025-05-02: "In early March 2025, Onsemi submitted an offer to acquire Allegro for $6.9 billion ($35 per share), including debt obligations, but was rejected by the company's management."

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Data from Endata (https://endata.com/). Announcements are summarized from public sources and may be incomplete; check the linked originals.