Memory-centric AI inference silicon and systems for high-throughput LLM serving
Positron AI designs inference-optimized silicon and systems built around memory capacity and bandwidth rather than raw compute, targeting high-throughput LLM serving at lower energy cost than general-purpose GPUs. Its first-generation Atlas system is deployed in more than 50 racks at Oracle Cloud Infrastructure, with Parasail, Jump Trading and i3d.net among named customers. The next-generation Asimov chip carries 288 to 2,304 GB of memory per chip and tapes out on TSMC's N3P process at the end of 2026, with production targeted for the second half of 2027; the Titan system pairs four to eight Asimov chips to serve models beyond 16 trillion parameters. Founded in 2023 by CTO Thomas Sohmers and Chief Scientist Edward Kmett, with former Lambda COO Mitesh Agrawal joining as CEO. Headquartered in Reno, Nevada. In September 2026 it raised $875M at a $5B post-money valuation, structured as a $375M Series C at a $3.5B pre-money plus a Series C-1 of up to $500M.
AI📍 Reno, NVFounded 2023
Current Valuation
$5.0B
as of 2026-09-10
UNICORN
QL Price
$12B
+145% vs last round
QuantLogix's current estimate for Positron AI, published 2026-10-07 — above the last disclosed round of $5.0B (2026-09-10).
Confidence
medium
Basis
secondary led
What backs this price
Last disclosed round
$5.0B
2026-09-10
weight 0.95
Secondary market print
$25B
2026-06-27
weight 0.54
This price sits more than 100% away from the last disclosed round. Past a 2× repricing off a single secondary print, the likeliest explanation is that the print and the round describe different share classes rather than a genuine move. It is published and graded like every other price, but treat it with more care.
How this price has held up
No round has priced for Positron AI since QuantLogix began publishing a price for it, so there is nothing to grade yet. The claim above is on the record from 2026-10-07 and will be graded against the next priced round. See the full accuracy record →
Which publicly-traded funds already hold it, what $10,000 buys, and whether any route is open to you.
Cite this price as QuantLogix QL Price, Positron AI, 2026-10-07 (9913b38f54cc53e6).
The id pins this exact claim, so a citation stays checkable after the price moves.
Model estimate for research — not a quote, target price, or investment advice.
IPO Outlookprivate
Is Positron AI going public?
No. Positron AI is private and has not filed to go public. There is no S-1 on file.
What is Positron AI's valuation in 2026?
Positron AI is valued at $5.0B as of 09/10/2026, set by its Series C ($875M, Sep 2026). That is the last confirmed mark, not a live price — private shares do not trade continuously.
Has Positron AI filed an S-1?
No public S-1 is on file for Positron AI.
Who are Positron AI's investors?
Positron AI's investors include NEA, Atreides Management, Valor Equity Partners, Andra Capital, SemiAnalysis Capital, Jim Clark and 17 more.
How much has Positron AI raised?
Positron AI has raised $1.2B in total across 4 disclosed rounds, most recently a Series C of $875M in Sep 2026.
Is Positron AI publicly traded — can you buy Positron AI stock?
No. Positron AI is a private company — its shares are not listed on any exchange and there is no ticker. The routes to exposure are pre-IPO secondary marketplaces and funds (accredited investors), employee tender offers when the company runs one, and public companies with read-through exposure. QuantLogix maps every route it can verify for Positron AI on its Pre-IPO Access Desk.
Answers are derived from the roster record shown on this page — filing status, last round and confirmed marks. Where the record is silent, the answer says so rather than guessing.
Company Profile
CEO
Mitesh Agrawal
Founded
2023
HQ
Reno, NV
Total Raised
$1.2B
Growth
Raised $875M at a $5B post-money in September 2026, seven months after a $230M Series B at over $1B
Last Round
Series C — $875M (Sep 2026) · Lead: NEA, Atreides Management, Valor Equity Partners, Andra Capital, SemiAnalysis Capital, Jim Clark (co-leads)
IPO Status
private
Fundraising Status
Series C · $875M · 1 mo ago
privateTotal raised $1.2B4 disclosed rounds
Series C Impact
Round Size
$875M
Primary financing announced
Post-Money Valuation
$5.0B
Company-announced mark
Round / Post-Money
17.5%
New capital ÷ post-money
Disclosed Funding
$1.2B
Cumulative disclosed rounds
Step-up compares disclosed post-money valuations. Round / post-money is a financing-size ratio, not an ownership or dilution estimate.
Secondary Market
Implied price / share
$27.53
Last round price / share
$5.52
vs last round
+398.7%
Open interest
14
Last round price vs secondary price
Secondary price return by period
Implied per-share price from private secondary transactions, as of Jun 2026. This is a point estimate, not a quote — the feed carries no bid, ask or spread, and a secondary print is evidence of what someone paid on that date rather than a live market. Compare across every tracked name →
Growth & Valuation
Capital raised per round
Charts built from publicly disclosed funding rounds and revenue estimates. Approximate, not real-time, not investment advice.
Funding History
Round
Amount
Date
Lead Investor
Post-Money
Series C
$875M
Sep 2026
NEA, Atreides Management, Valor Equity Partners, Andra Capital, SemiAnalysis Capital, Jim Clark (co-leads)
$5.0B
Series B
$230M
Feb 2026
—
—
Series A
$51.6M
Jul 2025
—
—
Seed
$23.5M
Feb 2025
—
—
Vertical Intelligence — AI / ML
Open models
0
Downloads (30d)
0
across all models
Followers
2
Attributed to Hugging Face organization "Positron AI" as of 2026-10-04. Open-weights footprint only — closed-model usage is not publicly measurable. Verify on Hugging Face ↗
Talent Signal
No public careers page or job board could be found for Positron AI as of 2026-09-15. That itself is a datapoint: no open external hiring surface.
Checked the company site and major hosted job boards. Re-checked monthly.
Founders & Key People
Thomas SohmersEdward Kmett
Investors
NEA · Atreides Management · Valor Equity Partners · Andra Capital · SemiAnalysis Capital · Jim Clark · DFJ Growth · Qatar Investment Authority · Resilience Reserve · Arena Private Wealth · Natural Capital · Helena · 1517 Fund · Flume Ventures · Unless · Boardman Bay Capital Management · Fincadia Advisors · Banyan Ventures · U First Capital · VentureTech Alliance · Hudson River Trading · Cisco Investments · Naver Ventures
Products
Atlas - first-generation inference system, deployed in 50+ racks at Oracle Cloud Infrastructure
Asimov - next-generation custom inference silicon carrying 288-2,304 GB of memory per chip; tapes out on TSMC's N3P process at the end of 2026 with production targeted for H2 2027
Titan - multi-chip inference system pairing four to eight Asimov chips to serve models beyond 16 trillion parameters
Private-company numbers are not real-time. Reflects publicly disclosed valuations from press releases, news reports, and tender offers as of 2026-09-10. Refreshed quarterly.