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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1674632	Beta Bionics Inc.	BBNX	Surgical & Medical Instruments & Apparatus (3841)	475386878

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
2053997	Wellington Hadley Harbor Aggregator Iv, L.p.	C/O Wellington Management Company Llp 280 Congress Street Boston MA 02210		No	No	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2025-01-31	2,901,599	$0.00	2,901,599	No	4	C	Direct
Common Stock	Acquisiton	2025-01-31	1,000,000	$17.00	3,901,599	No	4	P	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	C	Direct
No	4	P	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Series E Preferred Stock	Disposition	2025-01-31	2,901,599	$0.00	2,901,599	$0.00

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
0			No	4	C	Direct

Footnotes

Immediately prior to the closing of the initial public offering, each share of Series E Preferred Stock (the "Preferred Stock") was converted into an equal number of shares of Class B Common Stock and subsequently was converted into an equal number of shares of Common Stock without payment of further consideration. The Preferred Stock had no expiration date.
Shares acquired in a private placement pursuant to the terms of a Common Stock Purchase Agreement dated January 21, 2025.