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ARM agreed to acquire Artisan Components in 2004 to pair ARM’s processor and system IP with Artisan’s physical semiconductor IP—the libraries, memories, and I/O building blocks used to implement system-on-chip designs. The deal was announced at an implied value of about $913 million and closed on December 23, 2004. In 2025, Arm sold the former Artisan foundation-IP business to Cadence Design Systems.
Why did ARM buy Artisan Components?
ARM and Artisan presented the merger as a way to offer chip designers a broader set of complementary tools for building system-on-chip (SoC) products. ARM supplied processor, data-engine, peripheral and system IP, along with software and development tools. Artisan supplied physical IP: reusable design components that help turn a chip’s logical design into a manufacturable implementation.
The intended benefit was to connect choices about what a chip does with choices about how it is physically built, including trade-offs involving power, performance, density and yield. ARM also brought relationships with more than 130 silicon manufacturers; Artisan said it had licensed its IP to design teams at more than 2,000 companies worldwide. Those figures describe the companies’ respective networks as stated around the 2004 announcement, not a measure of customers added by the merger.
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Artisan’s president and chief executive officer, Mark R. Templeton, described the rationale this way: “The strategic vision of this transaction is compelling.”
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- Can be powered from USB
- Three LEDs, Two Push-buttons
- Support of wide choice of Integrated Development Environments (IDEs) including IAR, ARM Keil, GCC-based IDEs
What did ARM get from Artisan?
Artisan’s portfolio addressed the physical implementation layer of chip design, rather than duplicating ARM’s processor focus.
| Business | IP layer and role | Examples described in the 2004 announcement | Customer reach described at the time |
|---|---|---|---|
| ARM | Processor and system IP: the functions and subsystems that designers incorporate into a chip | Processors, data engines, peripherals, software and development tools | Relationships with more than 130 silicon manufacturers |
| Artisan | Physical or foundation IP: reusable components that support implementation of a chip design | Standard-cell libraries, embedded memories, I/O cells, analog functions and high-speed interface IP | Licenses to design teams at more than 2,000 companies worldwide |
Artisan’s components were optimized for factors including performance, density, power and yield. Together, the two portfolios covered different but connected parts of the SoC design process: ARM’s IP provided processing and system capabilities, while Artisan’s physical IP helped designers implement those capabilities in silicon.
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- On-board ST-LINK/V2-1 debugger/programmer with SWD connector
- Can be powered from USB
- Three LEDs, Two Push-buttons
- Support of wide choice of Integrated Development Environments (IDEs) including IAR, ARM Keil, GCC-based IDEs
How was the $913 million deal structured?
ARM Holdings and Artisan Components announced a definitive agreement on August 23, 2004. The approximately $913 million headline value was an implied aggregate consideration calculated using ARM ADS closing prices on August 20, 2004. At that reference price, the implied value was $33.89 per Artisan share.
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| Deal figure | What it means |
|---|---|
| $9.60 cash plus 4.41 ARM ADSs for each Artisan share | The exchange offered to Artisan shareholders under the announced terms |
| Approximately $225 million cash | Expected aggregate cash component described in the merger materials |
| About 374 million new ARM ordinary shares, or roughly 125 million ADSs | Expected aggregate share component described in the merger materials |
| Approximately $913 million, or $33.89 per Artisan share | Implied announcement value based on ARM ADS closing prices on August 20, 2004; not the closing-date per-share calculation |
The $913 million figure is therefore a reference-price valuation at announcement, not a fixed cash price per Artisan share. The announced exchange combined cash with ARM ADSs, so the stock component’s market value depended on ARM’s share price.
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When did the ARM–Artisan acquisition close?
The transaction completed on December 23, 2004, after approvals from both companies’ shareholders. ARM’s completion announcement reported average consideration of $36.32 per Artisan share. That figure reflected the $9.60 cash payment plus 4.41 ARM ADSs valued at $6.06 per ADS for the closing calculation. It differs from the $33.89 implied per-share value used for the August announcement because the ADS reference price was different.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What happened to Artisan’s semiconductor IP?
Artisan’s assets became part of ARM’s broader IP business after the acquisition. A later change came on August 26, 2025: Arm’s fiscal 2026 filing says Arm completed the sale to Cadence Design Systems of its former Artisan foundation-IP business, specifically standard-cell libraries, memory compilers and general-purpose I/Os. The filing identifies those assets as the business sold; it does not describe every item in Artisan’s original 2004 portfolio as part of that sale.
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- Mainstream Mixed signals MCUs ARM Cortex-M4 core with DSP and FPU, 512 Kbytes Flash, 72 MHz CPU, MPU, CCM, 12-bit ADC 5 MSPS, PGA, comparators
- On-board ST-LINK/V2-1 debugger/programmer with SWD connector
- Can be powered from USB.
- Three LEDs, Two Push-buttons
- Support of wide choice of Integrated Development Environments (IDEs) including IAR, ARM Keil, GCC-based IDEs
This gives the deal a clear afterlife: ARM combined processor/system IP with Artisan physical IP, and more than two decades later Arm sold the foundation-IP business descended from Artisan to Cadence.
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