Nuburu
BURU on NYSEAmerican. Miscellaneous electrical machinery, equipment & supplies. Market value $9m.
Figures from the annual report for the year ended 31 December 2025.
Should I look at this?
Not a fit for our list right now
Why it could be worth it
Nothing stands out yet.
See Technology stocks that passed both tests
This is not advice. Check the numbers below.
For every $100 of what the whole company costs, it produced $-215.96 of spare cash last year. A savings account pays about $4.
The filings do not give us enough to work this out.
The filings do not give us enough to work this out.
Quality score: 20 of 100. Price score: 0 of 100. Our list needs 70 on quality and 60 on price.
$1.04 a share, 3255% above its 1-year low
Over the past year the price has ranged from $0.03 to $4.25.
Price from Friday’s close (2 October).
Five years of cash, in billions
Spare cash swings from quarter to quarter here: a shortfall of $31 million in the past 12 months, a shortfall of $21 million in the year to December 2025.
| Revenue | |||||
| Revenue | n/a | $1m | $2m | $152,127 | $0 |
| Operating margin | |||||
| Operating margin | n/a | -971.8% | -1041.9% | -8644.7% | n/a |
| Debt to equity | |||||
| Debt to equity | n/a | n/a | n/a | n/a | n/a |
| Shares outstanding | |||||
| Shares outstanding | n/a | 0.04bn | 0.02bn | 0.43bn | 0.01bn |
Health checks
- Free cash flow positive0 of 3 years
- Accounting looks honest (Beneish)Not enough data
- Financial strength (Piotroski)2 of 8 checks we could run
- Profit backed by cash (accruals)No
- DebtUnknown
- Revenue growth, five yearsUnknown
The quarter to June 2026
How the business did, compared with the same quarter a year earlier.
- A loss of $6 million, compared with a loss of $12 million a year ago.
- It loses 2621 cents on each $1 of sales, compared with 140296 cents a year earlier.
- 1405% more shares than a year ago. Each share owns a bit less of the company.
- Sales grew on a year ago in 2 of the last 4 quarters.
| Quarter to | Amount |
|---|---|
| September 2024 | $0 |
| December 2024 | $9,300 |
| March 2025 | $0 |
| June 2025 | $0 |
| September 2025 | $0 |
| December 2025 | $0 |
| March 2026 | $407,644 |
| June 2026 | $524,927 |
| Quarter to | Amount |
|---|---|
| September 2024 | -$4m |
| December 2024 | -$12m |
| March 2025 | -$17m |
| June 2025 | -$12m |
| September 2025 | -$22m |
| December 2025 | -$28m |
| March 2026 | -$459,898 |
| June 2026 | -$6m |
From the company's quarterly reports to the SEC.
Dates
- Next results (estimated)
- n/a
- Last annual report (10-K)
- 31 March 2026
- Next quarterly (estimated, 10-Q)
- 13 November 2026
Who owns it
None of the long-term investors we follow own it. 32 funds in all.
Largest holders overall
- Vanguard Capital Management$860,792Added
- Geode Capital Management$177,017Added
- UBS Group AG$111,733Added
- Vanguard Fiduciary Trust$109,601
- State Street$68,744Added
- Northern Trust$50,261Added
- Allworth Financial LP$15,224
- Ruggiero Investments$12,830Added
- Vanguard Personalized Indexing Management$8,275New
- MAI Capital Management$5,334New
From 13F filings for the quarter ended 30 June 2026.
Big holders and activists
3 investors own more than 5%.
- Avondale Capital, LLCPassive investorat least 9.9%+1.1 pts(filed with 3 related holders)Since 11 September 2026
- Esousa Group Holdings LLCPassive investorat least 9.9%+9.5 pts(filed with 1 related holder)Since 17 July 2026
- HIGHBRIDGE CAPITAL MANAGEMENT LLCPassive investor9.9%Since 31 March 2026
- The Vanguard GroupPassive investorSold down below 5%Since 13 March 2026
| Holder | Stake | Since | |
|---|---|---|---|
Avondale Capital, LLC Passive investor | at least 9.9%+1.1 pts (filed with 3 related holders) | 11 September 2026 | |
Esousa Group Holdings LLC Passive investor | at least 9.9%+9.5 pts (filed with 1 related holder) | 17 July 2026 | |
HIGHBRIDGE CAPITAL MANAGEMENT LLC Passive investor | 9.9% | 31 March 2026 | |
The Vanguard Group Passive investor | Sold down below 5% | 13 March 2026 |
From Schedule 13D and 13G filings: anyone owning more than 5% must file one.
What insiders did
In the last 12 months, 1 insider bought $2m of shares on the open market.
- Zamboni AlessandroCo-Chief Executive Officer, DirectorBought
- Date
- 31 December 2025
- Shares
- 4,332,525
- Price
- $0.35
- Value
- $2m
| Date | Who | Did | Shares | Price | Value |
|---|---|---|---|---|---|
| 31 December 2025 | Zamboni Alessandro Co-Chief Executive Officer, Director | Bought | 4,332,525 | $0.35 | $2m |
From Form 4 filings: insiders must report trades in their own company's shares within two days.
Warning signs in its filings
Problems the company itself reported to the SEC, in its own words.
Not checked yet. We haven’t read Nuburu’s annual report.
A 10-K is the yearly report every US company files with the SEC. An 8-K is a short notice of a big event.
What could go wrong
- It owes more than it owns on paper (negative equity). Often that's from borrowing to buy back shares.
Whether the price already reflects the risks is what the deep dive is for.
The deep dive
Everything above is arithmetic on public filings. The deep dive reads the last ten years of annual reports, the proxy statements, and the earnings calls, then argues the case the way Buffett, Klarman, and Hohn would, and checks every claim against the source.
- What the business is worth, as a range, and the margin of safety at today’s price
- Prices to start buying, buy, and buy hard
- The three things that would make this a mistake
- Every number footnoted to the filing it came from
Your first deep dive is free.
Not advice. Numbers on this page come from SEC filings and are updated each night; prices are updated again after the US market closes. The five-year figures are rounded.