pTau Bio Limited
拼圖生物科技有限公司
About this company
pTau Bio Limited is a Hong Kong private company limited by shares incorporated on May 27, 2021. It is registered with company registration (CR) number 3052041 and business registration number (BRN) 73025500. It is one of 112,563 companies incorporated in Hong Kong in 2021. The company is currently active on the Hong Kong Companies Register. Its registered office is at UNIT 1307A, 13/F., TWO HARBOURFRONT, 22 TAK FUNG STREET, HUNGHOM, KLN HONG KONG. There are 22 documents on file with the Companies Registry dating back to 2021, most recently (E)FNAR1 - Annual Return filed on June 18, 2026.
Company Information
- CR Number
- 3052041
- BRN
- 73025500
- Company Type
- Private company limited by shares
- Type Category
- Local company
Dates & Status
- Incorporation Date
- 2021-05-27
- Has Charges
- No
- Dormant
- No
Registered office
Current address
UNIT 1307A, 13/F., TWO HARBOURFRONT, 22 TAK FUNG STREET, HUNGHOM, KLN HONG KONG
1 earlier registered-office address on file for this company. (earliest on record: 2023-08-21)
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Name History
| Name | From | To |
|---|---|---|
| 拼圖生物科技有限公司 | 2021-05-27 | Current |
| pTau Bio Limited | 2021-05-27 | Current |
Company Documents
(E)FNAR1 - Annual Return
2026-06-18 · Annual Return
(E)FND2A - Notice of Change of Company Secretary and Director (Appointment/Cessation)
2026-05-15 · Director/Secretary Change
(E)FNR1 - Notice of Change of Address of Registered Office
2026-05-15 · Address Change
(E)FND2A - Notice of Change of Company Secretary and Director (Appointment/Cessation)
2025-12-30 · Director/Secretary Change
(E)FNAR1 - Annual Return
2025-06-19 · Annual Return
(E)FNR1 - Notice of Change of Address of Registered Office
2025-06-16 · Address Change
(E)FND2B - Notice of Change in Particulars of Company Secretary and Director
2025-06-16 · Director/Secretary Change
(E)FNAR1 - Annual Return
2024-06-11 · Annual Return
Information Sheet regarding Using Business Registration Number as Unique Business Identifier
2023-12-27 · Other
(E)FNR1 - Notice of Change of Address of Registered Office
2023-08-21 · Address Change
(E)FND2B - Notice of Change in Particulars of Company Secretary and Director
2023-08-21 · Director/Secretary Change
(E)FND2B - Notice of Change in Particulars of Company Secretary and Director
2023-08-21 · Director/Secretary Change
(E)FNAR1 - Annual Return
2023-06-28 · Annual Return
(E)FND2A - Notice of Change of Company Secretary and Director (Appointment/Cessation)
2023-01-11 · Director/Secretary Change
(E)FND2A - Notice of Change of Company Secretary and Director (Appointment/Cessation)
2022-08-01 · Director/Secretary Change
(E)FNR1 - Notice of Change of Address of Registered Office
2022-08-01 · Address Change
(E)FNAR1 - Annual Return
2022-06-13 · Annual Return
(E)FNSC1 - Return of Allotment
2022-01-25 · Share Related
(E)FNR1 - Notice of Change of Address of Registered Office
2021-11-16 · Address Change
(E)FNNC1 - Incorporation Form (Company Limited by Shares)
2021-05-27 · Share Related
| Document | Type | Filing Date | Order |
|---|---|---|---|
| (E)FNAR1 - Annual Return | Annual Return | 2026-06-18 | |
| (E)FND2A - Notice of Change of Company Secretary and Director (Appointment/Cessation) | Director/Secretary Change | 2026-05-15 | |
| (E)FNR1 - Notice of Change of Address of Registered Office | Address Change | 2026-05-15 | |
| (E)FND2A - Notice of Change of Company Secretary and Director (Appointment/Cessation) | Director/Secretary Change | 2025-12-30 | |
| (E)FNAR1 - Annual Return | Annual Return | 2025-06-19 | |
| (E)FNR1 - Notice of Change of Address of Registered Office | Address Change | 2025-06-16 | |
| (E)FND2B - Notice of Change in Particulars of Company Secretary and Director | Director/Secretary Change | 2025-06-16 | |
| (E)FNAR1 - Annual Return | Annual Return | 2024-06-11 | |
| Information Sheet regarding Using Business Registration Number as Unique Business Identifier | Other | 2023-12-27 | |
| (E)FNR1 - Notice of Change of Address of Registered Office | Address Change | 2023-08-21 | |
| (E)FND2B - Notice of Change in Particulars of Company Secretary and Director | Director/Secretary Change | 2023-08-21 | |
| (E)FND2B - Notice of Change in Particulars of Company Secretary and Director | Director/Secretary Change | 2023-08-21 | |
| (E)FNAR1 - Annual Return | Annual Return | 2023-06-28 | |
| (E)FND2A - Notice of Change of Company Secretary and Director (Appointment/Cessation) | Director/Secretary Change | 2023-01-11 | |
| (E)FND2A - Notice of Change of Company Secretary and Director (Appointment/Cessation) | Director/Secretary Change | 2022-08-01 | |
| (E)FNR1 - Notice of Change of Address of Registered Office | Address Change | 2022-08-01 | |
| (E)FNAR1 - Annual Return | Annual Return | 2022-06-13 | |
| (E)FNSC1 - Return of Allotment | Share Related | 2022-01-25 | |
| (E)FNR1 - Notice of Change of Address of Registered Office | Address Change | 2021-11-16 | |
| (E)FNNC1 - Incorporation Form (Company Limited by Shares) | Share Related | 2021-05-27 |
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Frequently asked questions
When was pTau Bio Limited incorporated?
pTau Bio Limited was incorporated in Hong Kong on May 27, 2021.
Is pTau Bio Limited still active?
Yes. pTau Bio Limited is currently active on the Hong Kong Companies Register.
What are pTau Bio Limited's CR number and BRN?
pTau Bio Limited's company registration (CR) number is 3052041 and its business registration number (BRN) is 73025500.
Where is pTau Bio Limited's registered office?
pTau Bio Limited's registered office is at UNIT 1307A, 13/F., TWO HARBOURFRONT, 22 TAK FUNG STREET, HUNGHOM, KLN HONG KONG.
What type of company is pTau Bio Limited?
pTau Bio Limited is a private company limited by shares on the Hong Kong Companies Registry.
How many documents has pTau Bio Limited filed?
pTau Bio Limited has 22 documents on file with the Hong Kong Companies Registry, dating back to 2021.
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