# Startup funding, week of 7 September: Mistral AI's $3.5B Series D leads 72 rounds

> We read 72 equity rounds announced from 7 September to 13 September 2026, raising $14B between them.

Source: https://millionrounds.com/news/weekly/2026-09-07 (Millionrounds; every figure on the page links to its filing or article)

Equity rounds **72** announced this week, 70 with an amount

Raised **$14B** across those rounds

Lead named **89%** of rounds say who led

Countries **19** where this week's rounds were raised

## The biggest rounds

- [1 **Mistral AI** Series D · France · led by Samsung Electronics **$3.5B**](https://millionrounds.com/company/mistral-ai)
- [2 T **The Boring Co.** Growth · United States **$3.0B**](https://millionrounds.com/company/the-boring-co)
- [3 **Cognition** Series E · United States · led by Andreessen Horowitz, Accel **$2.0B**](https://millionrounds.com/company/cognition)
- [4 **Stoke Space Technologies** Series E · United States · led by Spark Capital, Point72 Ventures **$1.0B**](https://millionrounds.com/company/stoke-space-technologies)
- [5 **Positron AI** Series C · led by New Enterprise Associates, Valor Equity Partners **$875M**](https://millionrounds.com/company/positron-ai)
- [6 **Mach Industries** Series C · United States **$600M**](https://millionrounds.com/company/mach-industries)
- [7 **Harvey** Growth · United States · led by Lightspeed Venture Partners, Diffusion **$550M**](https://millionrounds.com/company/harvey)
- [8 **The Exploration Company** Series C · Germany · led by Bessemer Venture Partners, Atomico **$450M**](https://millionrounds.com/company/the-exploration-company)
- [9 **UniPat** Growth · led by Alibaba **$300M**](https://millionrounds.com/company/unipat)
- [10 R **Rightway Healthcare** Series E · United States · led by Francisco Partners **$155M**](https://millionrounds.com/company/rightway-healthcare)

## By stage, against the year

Each stage's median this week beside its median over the last twelve months. A single week is a small sample, so read the gap as a hint, not a trend.

[Pre-seed](https://millionrounds.com/benchmarks/pre-seed) *10* **$3.0M** this week **$2.0M** 12-month median

[Seed](https://millionrounds.com/benchmarks/seed) *17* **$5.3M** this week **$5.5M** 12-month median

[Series A](https://millionrounds.com/benchmarks/series-a) *18* **$13M** this week **$20M** 12-month median

[Series B](https://millionrounds.com/benchmarks/series-b) *4* **$20M** this week **$50M** 12-month median

[Series C](https://millionrounds.com/benchmarks/series-c) *9* **$125M** this week **$100M** 12-month median

[Series D](https://millionrounds.com/benchmarks/series-d) *3* **$115M** this week **$158M** 12-month median

[Growth](https://millionrounds.com/benchmarks/growth) *6* **$300M** this week **$108M** 12-month median

## The most active leads

Firms that led two or more of the week's rounds.

- [**Sequoia Capital** Cymphony, Mecka AI *2 led*](https://millionrounds.com/fund/sequoia-capital)
- [**Spark Capital** Stoke Space Technologies, TAR *2 led*](https://millionrounds.com/fund/spark-capital)
- [**Mercia Asset Management** KVector, SCI Semiconductor *2 led*](https://millionrounds.com/fund/mercia-ventures)
- [**SMBC Fin Atlas Beyond Fund** Blee, Cymphony *2 led*](https://millionrounds.com/fund/smbc-fin-atlas-beyond-fund)

## Where

- United States **22**
- United Kingdom **9**
- India **7**
- Canada **4**
- Germany **3**
- China **3**

United States had the most rounds this week.

## In what

- AI **40**
- Healthcare **9**
- Fintech **8**
- Robotics **7**
- Logistics **7**
- Big Data & Analytics **6**
- Automotive & EVs **6**
- Construction **5**

AI was the busiest sector.

**How this roundup is made**

It is written from the rounds we read that week in named articles and filings. Only equity rounds with a stage count towards the figures; debt, grants and public companies' raises do not. We read more sources every month, so the number of rounds says more about our coverage than about the market: compare medians, not totals. [How we read rounds](https://millionrounds.com/methodology) · [Report a mistake](https://millionrounds.com/corrections)