HUMMING BIRD VENTURES MANAGEMENT NV

PrivateCIK: 2099044

HUMMING BIRD VENTURES MANAGEMENT NV enters BILLIONTOONE, INC. with 180K shares plus derivative instruments

Holding both equity and derivatives at entry signals strong long-term conviction in the company.

Indirect Derivatives

HUMMING BIRD VENTURES MANAGEMENT NV

Filed: 1/20/2026ACC: 0001104659-26-005171

InsiderHUMMING BIRD VENTURES MANAGEMENT NVCIK 2099044

→

IssuerBILLIONTOONE, INC.CIK 2070849

10% Owner

Since Nov 2025

180K

Baseline shares

0.00

Direct ownership

0 positions

7.71M

Derivative underlying

10 instruments

1

Security positions

180K indirect

Non-Derivative Holdings1

Common Stock

Indirect

Shares owned180K

Total

180K indirect180K

Security Title	Shares Owned	Ownership Type
Common Stock	180K	Indirect
Total	180K	180K indirect

Derivative Holdings10

Series B-2 Convertible Preferred Stock

Indirect

Underlying security

Common Stock

Underlying shares

640.73K

Shares owned

N/A

Exercise price

Expiration

—

Exercise window

—

Series B-1 Convertible Preferred Stock

Indirect

Underlying security

Common Stock

Underlying shares

18.84K

Shares owned

N/A

Exercise price

Expiration

—

Exercise window

—

Series C Convertible Preferred Stock

Indirect

Underlying security

Common Stock

Underlying shares

137.29K

Shares owned

N/A

Exercise price

Expiration

—

Exercise window

—

Series C Convertible Preferred Stock

Indirect

Underlying security

Common Stock

Underlying shares

1.57M

Shares owned

N/A

Exercise price

Expiration

—

Exercise window

—

Series B-1 Convertible Preferred Stock

Indirect

Underlying security

Common Stock

Underlying shares

2.26M

Shares owned

N/A

Exercise price

Expiration

—

Exercise window

—

Series A-1 Convertible Preferred Stock

Indirect

Underlying security

Common Stock

Underlying shares

20K

Shares owned

N/A

Exercise price

Expiration

—

Exercise window

—

Series A-2 Convertible Preferred Stock

Indirect

Underlying security

Common Stock

Underlying shares

33K

Shares owned

N/A

Exercise price

Expiration

—

Exercise window

—

Series D Convertible Preferred Stock

Indirect

Underlying security

Common Stock

Underlying shares

446.10K

Shares owned

N/A

Exercise price

Expiration

—

Exercise window

—

Series A-6 Convertible Preferred Stock

Indirect

Underlying security

Common Stock

Underlying shares

2.26M

Shares owned

N/A

Exercise price

Expiration

—

Exercise window

—

Series B-2 Convertible Preferred Stock

Indirect

Underlying security

Common Stock

Underlying shares

320.36K

Shares owned

N/A

Exercise price

Expiration

—

Exercise window

—

Total

Underlying

7.71M

Owned

0.00

Security	Underlying	Exercise Price	Exercise Window	Expiration	Underlying Shares	Shares Owned
Series B-2 Convertible Preferred Stock Indirect	Common Stock		—	—	640.73K	N/A
Series B-1 Convertible Preferred Stock Indirect	Common Stock		—	—	18.84K	N/A
Series C Convertible Preferred Stock Indirect	Common Stock		—	—	137.29K	N/A
Series C Convertible Preferred Stock Indirect	Common Stock		—	—	1.57M	N/A
Series B-1 Convertible Preferred Stock Indirect	Common Stock		—	—	2.26M	N/A
Series A-1 Convertible Preferred Stock Indirect	Common Stock		—	—	20K	N/A
Series A-2 Convertible Preferred Stock Indirect	Common Stock		—	—	33K	N/A
Series D Convertible Preferred Stock Indirect	Common Stock		—	—	446.10K	N/A
Series A-6 Convertible Preferred Stock Indirect	Common Stock		—	—	2.26M	N/A
Series B-2 Convertible Preferred Stock Indirect	Common Stock		—	—	320.36K	N/A
Total					7.71M	0.00

HUMMING BIRD VENTURES MANAGEMENT NV — Initial Ownership Disclosure (Form 3) Filed Jan 20, 2026 | Finecho