Helmut Wolfgang Jeggle Buys $6M of Bambusa Therapeutics Inc (BBTX) — SEC Form 4, Nov 02, 2026

Open-Market Net Purchase · SEC Form 4

+$6,000,000

Equity position changed by +124.9%

Reporting Owner

Helmut Wolfgang Jeggle

Director 10% Owner

TXN 2026-11-02 · FILED 2026-11-02

Equity Position 9.26M sh 4,119,600 → 9,264,301

Equity Change +124.9% shares held after vs before

Filing Lag 0 business days within 2-day SEC deadline

Form 4 · Statement of Changes in Beneficial Ownership

Bambusa Therapeutics Inc

BBTX CIK 0002044950

Reporting Owner

Name	Relationship
Helmut Wolfgang Jeggle CIK 0001982614	Director 10% Owner

Helmut Wolfgang Jeggle at Bambusa Therapeutics Inc Full insider history

Bought (12 mo) $6,000,000

Sold (12 mo) —

Non-Derivative Securities Transactions

Title	Date	Type	Shares	Price	Net Total	Post-Txn	Ownership
Common StockF1 F2	2026-11-02	C - Conversion	4,769,701 A		—	8,889,301	Indirect See footnote
Common StockF2	2026-11-02	P - Purchase	375,000 A	$16.00	+$6,000,000	9,264,301	Indirect See footnote

Derivative Securities Transactions

Title	Date	Type	Shares	Price	Underlying	Ownership
Series Seed Plus Preferred StockF1 F1 F1 F2	2026-11-02	C - Conversion	3,135,066 D	$0.00	3,135,066 Common Stock	Indirect See footnote
Series A-1 Preferred StockF1 F1 F1 F2	2026-11-02	C - Conversion	1,473,775 D	$0.00	1,473,775 Common Stock	Indirect See footnote
Series A-2 Preferred StockF1 F1 F1 F2	2026-11-02	C - Conversion	160,860 D	$0.00	160,860 Common Stock	Indirect See footnote

Footnotes (2)

F1: All shares of the preferred stock, par value $0.00001 per share, of the Issuer automatically converted on a one-for-one basis to shares of the Issuer's common stock, par value $0.00001 per share ("Common Stock") prior to the closing of the Issuer's initial public offering of its Common Stock. Show more
F2: Shares held by Salvia Investment GmbH ("Salvia"). The Reporting Person is the Managing Director of Salvia GmbH and has sole voting and dispositive power with respect to the shares held by Salvia. The Reporting Person disclaims beneficial ownership of such holdings, except to the extent of his pecuniary interest in the shares. Show more

5%+ Holders · 13D/G 2 filers

Latest Schedule 13D/G per filer; stakes the filer reported closed are left out.

Other insiders at Bambusa Therapeutics Inc

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