Funding round
Positron Series B
Positron, which works in generative AI hardware acceleration solutions in Reno, raised $230M in a Series B round announced on 4 Feb 2026, led by Arena Private Wealth, Jump Trading, Unless and Helena Capital, at a $1.00B post-money valuation. 12 firms took part. It is Positron's third venture round on record; the one before was a Series A in Jul 2025.
$230M
Amount raised
$1.00B
Post-money valuation
$770M pre-money
12
Investors
4 leads
23%
Stake sold
new money over the post-money
Valuation
What this round says about the price
This round priced Positron at $1.00B after the new money. The $230M bought investors about 23% of the company. It came 7 months after Positron's Series A. It is 19% of the $1.18B Positron has raised in the venture rounds on record. Positron raised again 7 months later: a Series C round of $875M in Sep 2026, at $5.00B post-money.
Positron's funding rounds
Positron has 4 venture rounds on record. This one is highlighted.
- Seed 11 Feb 2025 $24M
- Series A 28 Jul 2025, led by Valor, Atreides Management and DFJ Growth $52M
- Series B this round 4 Feb 2026, led by Arena Private Wealth, Jump Trading and Unless $230M$1.00B post-money
- Series C 10 Sep 2026, led by New Enterprise Associates, Andra Capital and Atreides Management $875M$5.00B post-money
Investors
Who put money in
Arena Private Wealth, Jump Trading, Unless and Helena Capital led the round with 8 other firms.
Lead investors
- Arena Private Wealth new investor
- backs 10 venture-backed companies new investor
- backs 9 venture-backed companies new investor
- backs 7 venture-backed companies new investor
Also in the round
- Qatar Investment Authority backs 71 venture-backed companies new investor
- Arm Holdings Plc new investor
- Valor backs 143 venture-backed companies new investor
- Atreides Management backs 53 venture-backed companies new investor
- DFJ Growth backs 51 venture-backed companies new investor
- Resilience Reserve new investor
- backs 6 venture-backed companies new investor
- backs 22 venture-backed companies new investor
Use of proceeds
What the money is for
According to the announcement, the money goes to product development and scaling operations.
- Product development
- Scaling operations
Comparable rounds
How it compares
The closest in time, other companies' Series B rounds in Device Manufacturing:
| Company | Announced | Amount | Post-money | Led by |
|---|---|---|---|---|
| Device Manufacturing | 9 Dec 2025 | $230M | not disclosed | Google Quantum AI and SoftBank Vision Fund |
| Device Manufacturing | 30 Jul 2025 | $100M | not disclosed | United States Innovative Technology |
| Device Manufacturing | 4 Mar 2025 | $30M | not disclosed | HH-CTBC Partnership |
| Device Manufacturing | 6 Feb 2025 | $45M | not disclosed | Accurant International's Net Zero Alliance |
Sources
Where this comes from
Reported by 4 sources.
Questions
Frequently asked
How much did Positron raise in its Series B round?
Positron raised $230M in its Series B round, announced in Feb 2026.
Who led Positron's Series B round?
Arena Private Wealth, Jump Trading, Unless and Helena Capital led it, with Qatar Investment Authority, Arm Holdings Plc, Valor, Atreides Management and DFJ Growth and 3 more.
What was Positron's valuation at the Series B round?
$1.00B post-money ($770M pre-money).
Did Positron raise again after this round?
Yes: a Series C round in Sep 2026 of $875M at $5.00B post-money.