v3.26.1
STOCKHOLDERS' EQUITY (Tables)
3 Months Ended 12 Months Ended
Mar. 31, 2026
Dec. 31, 2025
STOCKHOLDERS' EQUITY    
Schedule of authorized and issued preferred stock

Issued and Outstanding

  ​ ​ ​

Authorized

  ​ ​ ​

2025

  ​ ​ ​

2024

Series A-1 Preferred Stock

 

3,778,798

 

3,778,798

 

3,778,798

Series A-2 Preferred Stock

 

545,372

 

545,372

 

545,372

Series A-3 Preferred Stock

 

2,423,708

 

2,423,708

 

2,423,708

Series A-4 Preferred Stock

 

17,303,891

 

15,421,114

 

15,421,114

Series B-1 Preferred Stock

 

18,530,110

 

18,530,110

 

18,530,110

Series B-2 Preferred Stock

 

31,800,835

 

23,623,385

 

23,623,385

Total Preferred Stock

 

74,382,714

 

64,322,487

 

64,322,487

Schedule of material differences between the series A preferred stock and series B preferred stock  

Provision

  ​ ​ ​

Series A Preferred

  ​ ​ ​

Series B Preferred

Original Issue Price

A-1: $14.25 A-2: $15.25 A-3: $16.00 A-4: $19.00

B-1: $20.25 B-2: $27.50

Liquidation Preference

1× non-participating (Original Issue Price + declared unpaid dividends)

Identical

Dividend Rate

8.0% per annum, non-cumulative, payable when/if declared

Identical

Conversion Ratio

1:1 (subject to standard anti- dilution)

Identical

Voluntary Conversion

At any time at holder’s option

Identical

Automatic Conversion

Upon (i) Qualified IPO (≥ $50M and price ≥ 2× Series B issue price) or (ii) majority of Preferred vote

Same trigger, but adds requirement that majority of Series B must approve Slightly stronger for B

Voting Rights

Vote together with Common on as-converted basis

Identical

Board Seats

Series A elects 1 director (as long as ≥ 321,697 shares outstanding)

Series B elects 1 director (as long as ≥ 498,429 shares outstanding)

Protective Provisions (Class Vote)

Majority of all Preferred required for major actions (amend charter, increase authorized, create senior stock, liquidation, etc.)

Same majority of all Preferred, plus majority of Series B required for any action that adversely affects Series B rights Series B has veto over its own rights

Anti-Dilution Protection

Broad-based weighted average

Identical

Redemption

None (only upon Deemed Liquidation Event)

Identical

Participation Rights / Pro Rata

Yes – all Major Investors

Identical

Registration Rights

Demand (after IPO), S-3, piggyback

Identical

Right of First Refusal / Co-Sale

Applies to Key Holders (founders)

Identical

Summary of stock option activity

Options Outstanding

Weighted Average

Weighted Average

Remaining Term

  ​ ​ ​

Number of Shares

  ​ ​ ​

Exercise Price

  ​ ​ ​

(years)

Balance at December 31, 2025

 

712,381

$

7.50

 

7.0

Granted

 

 

 

Exercised

 

 

 

Expired/Cancelled

 

(35,304)

$

2.50

 

Balance at March 31, 2026

 

677,077

$

7.42

 

6.6

Exercisable at March 31, 2026

 

444,458

$

7.42

 

6.6

Exercisable at March 31, 2026 and expected to vest thereafter

 

233,216

$

8.17

 

8.2

  ​ ​ ​

  ​ ​ ​

  ​ ​ ​

Weighted Average

Weighted Average

Remaining Term

Number of Shares

Exercise Price

(years)

Balance at December 31, 2023

 

714,204

$

6.25

 

6.3

Granted

 

173,907

 

7.50

 

Exercised

 

(600)

 

5.00

 

Expired/Cancelled

 

(201,722)

 

6.00

 

Balance at December 31, 2024

 

685,789

 

7.25

 

7.5

Granted

 

59,612

 

8.00

 

Exercised

 

(5,884)

 

2.50

 

Expired/Cancelled

 

(27,136)

 

3.00

 

Balance at December 31, 2025

 

712,381

 

7.50

 

7.0

Exercisable at December 31, 2025

 

444,441

 

7.00

 

6.2

Exercisable at December 31, 2025 and expected to vest thereafter

 

267,940

$

8.25

 

8.4

Schedule of weighted average assumptions  

  ​ ​ ​

2025

  ​ ​ ​

2024

 

Expected term

 

6.32

 

6.11

Expected Volatility

 

101.13

%  

107.34

%

Risk free interest rate

 

3.92

%  

4.20

%

Expected dividend yield

 

0

%  

0

%

Weight average grant date fair value per share

$

6.42

$

6.25

Summary of stock warrant activity

  ​ ​ ​

Number of Warrants

Balance at December 31, 2025

 

83,213

Granted

 

Exercised

 

(64,584)

Forfeited/Expired

 

Balance at March 31, 2026

 

18,629

Exercisable at March 31, 2026

 

18,629

  ​ ​ ​

2025

  ​ ​ ​

2024

Warrants

 

  ​

 

  ​

Balance at December 31, 2024

 

83,213

 

83,213

Granted

 

 

Exercised

 

 

Forfeited/Expired

 

 

Balance at December 31, 2025

 

83,213

 

83,213

Exercisable at December 31, 2025

 

83,213

 

83,213