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Registered number: 12909273 CLOCK BIO LIMITED UNAUDITED FINANCIAL STATEMENTS INFORMATION FOR FILING WITH THE REGISTRAR FOR THE YEAR ENDED 31 DECEMBER 2025
CLOCK BIO LIMITED REGISTERED NUMBER: 12909273 BALANCE SHEET AS AT 31 DECEMBER 2025
|  | 2025 |  | 2024
Note |  | £ |  | £
FIXED ASSETS |  |  |  |  |
Intangible assets | 4 |  | 92,132 |  | 43,155
Tangible assets | 5 |  | 11,774 |  | 12,520
Investments | 6 |  | 30,344 |  | 30,344
|  |  | 134,250 |  | 86,019
CURRENT ASSETS |  |  |  |  |
Debtors: amounts falling due within one year | 7 | 1,274,503 |  | 660,718 |
Cash at bank and in hand |  | 121,298 |  | 2,753,797 |
|  | 1,395,801 |  | 3,414,515 |
Creditors: amounts falling due within one year | 8 | (71,464) |  | (117,769) |
NET CURRENT ASSETS |  |  | 1,324,337 |  | 3,296,746
TOTAL ASSETS LESS CURRENT LIABILITIES |  |  | 1,458,587 |  | 3,382,765
NET ASSETS |  |  | 1,458,587 |  | 3,382,765
CAPITAL AND RESERVES |  |  |  |  |
Called up share capital | 9 |  | 21 |  | 21
Share premium account |  |  | 7,611,977 |  | 7,611,977
Profit and loss account |  |  | (6,153,411) |  | (4,229,233)
|  |  | 1,458,587 |  | 3,382,765
Page 1
CLOCK BIO LIMITED REGISTERED NUMBER: 12909273 BALANCE SHEET (CONTINUED) AS AT 31 DECEMBER 2025 The directors consider that the Company is entitled to exemption from audit under section 477 of the Companies Act 2006 and members have not required the Company to obtain an audit for the year in question in accordance with section 476 of the Companies Act 2006. The directors acknowledge their responsibilities for complying with the requirements of the Companies Act 2006 with respect to accounting records and the preparation of financial statements. The financial statements have been prepared in accordance with the provisions applicable to companies subject to the small companies regime and in accordance with the provisions of FRS 102 Section 1A - small entities. The financial statements have been delivered in accordance with the provisions applicable to companies subject to the small companies regime. The Company has opted not to file the profit and loss account in accordance with provisions applicable to companies subject to the small companies' regime. The financial statements were approved and authorised for issue by the board and were signed on its behalf by:
Dr M Boehler
Director
Date: 27 February 2026
The notes on pages 3 to 9 form part of these financial statements. Page 2
CLOCK BIO LIMITED NOTES TO THE FINANCIAL STATEMENTS FOR THE YEAR ENDED 31 DECEMBER 2025
1. | GENERAL INFORMATION
Clock Bio Limited is a private company limited by shares and incorporated in England and Wales. The Company's registered office address is Salisbury House, Station Road, Cambridge, CB1 2LA. The Company's principal trading address is Clock Bio Ltd, Milner Therapeutics Institute, Jeffrey Cheah Biomedical Centre, University of Cambridge, Puddicombe Way, Cambridge CB2 0AW. 2.ACCOUNTING POLICIES
| 2.1 | BASIS OF PREPARATION OF FINANCIAL STATEMENTS
The financial statements have been prepared under the historical cost convention unless otherwise specified within these accounting policies and in accordance with Financial Reporting Standard 102, the Financial Reporting Standard applicable in the UK and the Republic of Ireland and the requirements and the Companies Act 2006. The disclosure requirements of Section 1A of FRS 102 have been applied other than where additional disclosure is required to show a true and fair view. The following principal accounting policies have been applied:
| 2.2 | FOREIGN CURRENCY TRANSLATION
Functional and presentation currency The Company's functional and presentational currency is GBP. Transactions and balances Foreign currency transactions are translated into the functional currency using the spot exchange rates at the dates of the transactions. At each period end foreign currency monetary items are translated using the closing rate. Non-monetary items measured at historical cost are translated using the exchange rate at the date of the transaction and non-monetary items measured at fair value are measured using the exchange rate when fair value was determined. Foreign exchange gains and losses resulting from the settlement of transactions and from the translation at period-end exchange rates of monetary assets and liabilities denominated in foreign currencies are recognised in profit or loss except when deferred in other comprehensive income as qualifying cash flow hedges. Foreign exchange gains and losses that relate to borrowings and cash and cash equivalents are presented in the Profit and Loss Account within 'finance income or costs'. All other foreign exchange gains and losses are presented in profit or loss within 'other operating income'.
| 2.3 | OPERATING LEASES: THE COMPANY AS LESSEE
Rentals paid under operating leases are charged to profit or loss on a straight-line basis over the lease term.
| 2.4 | INTEREST INCOME
Interest income is recognised in profit or loss using the effective interest method. Page 3
CLOCK BIO LIMITED NOTES TO THE FINANCIAL STATEMENTS FOR THE YEAR ENDED 31 DECEMBER 2025 2.ACCOUNTING POLICIES (CONTINUED)
| 2.5 | FINANCE COSTS
Finance costs are charged to profit or loss over the term of the debt using the effective interest method so that the amount charged is at a constant rate on the carrying amount. Issue costs are initially recognised as a reduction in the proceeds of the associated capital instrument.
| 2.6 | PENSIONS
DEFINED CONTRIBUTION PENSION PLAN The Company operates a defined contribution plan for its employees. A defined contribution plan is a pension plan under which the Company pays fixed contributions into a separate entity. Once the contributions have been paid the Company has no further payment obligations. The contributions are recognised as an expense in profit or loss when they fall due. Amounts not paid are shown in accruals as a liability in the Balance Sheet. The assets of the plan are held separately from the Company in independently administered funds.
| 2.7 | TAXATION
Tax is recognised in profit or loss except that a charge attributable to an item of income and expense recognised as other comprehensive income or to an item recognised directly in equity is also recognised in other comprehensive income or directly in equity respectively. The current income tax charge is calculated on the basis of tax rates and laws that have been enacted or substantively enacted by the balance sheet date in the countries where the Company operates and generates income. Deferred tax balances are recognised in respect of all timing differences that have originated but not reversed by the balance sheet date, except that: ∙The recognition of deferred tax assets is limited to the extent that it is probable that they will be recovered against the reversal of deferred tax liabilities or other future taxable profits; and ∙Any deferred tax balances are reversed if and when all conditions for retaining associated tax allowances have been met. Deferred tax balances are not recognised in respect of permanent differences except in respect of business combinations, when deferred tax is recognised on the differences between the fair values of assets acquired and the future tax deductions available for them and the differences between the fair values of liabilities acquired and the amount that will be assessed for tax. Deferred tax is determined using tax rates and laws that have been enacted or substantively enacted by the balance sheet date.
| 2.8 | INTANGIBLE ASSETS
Intangible assets are initially recognised at cost. After recognition, under the cost model, intangible assets are measured at cost less any accumulated amortisation and any accumulated impairment losses. All intangible assets are considered to have a finite useful life. If a reliable estimate of the useful life cannot be made, the useful life shall not exceed ten years. Page 4
CLOCK BIO LIMITED NOTES TO THE FINANCIAL STATEMENTS FOR THE YEAR ENDED 31 DECEMBER 2025 2.ACCOUNTING POLICIES (CONTINUED)
| 2.9 | TANGIBLE FIXED ASSETS
Tangible fixed assets under the cost model are stated at historical cost less accumulated depreciation and any accumulated impairment losses. Historical cost includes expenditure that is directly attributable to bringing the asset to the location and condition necessary for it to be capable of operating in the manner intended by management. Depreciation is charged so as to allocate the cost of assets less their residual value over their estimated useful lives, using the straight-line method. Depreciation is provided on the following basis:
|  |  |  | Plant and machinery | - | 3 years straight-line
|  |  |  | Office equipment | - | 3 years straight-line
The assets' residual values, useful lives and depreciation methods are reviewed, and adjusted prospectively if appropriate, or if there is an indication of a significant change since the last reporting date. Gains and losses on disposals are determined by comparing the proceeds with the carrying amount and are recognised in profit or loss.
| 2.10 | VALUATION OF INVESTMENTS
Investments in subsidiaries are measured at cost less accumulated impairment.
| 2.11 | DEBTORS
Short-term debtors are measured at transaction price, less any impairment.
| 2.12 | CASH AND CASH EQUIVALENTS
Cash is represented by cash in hand and deposits with financial institutions repayable without penalty on notice of not more than 24 hours. Cash equivalents are highly liquid investments that mature in no more than three months from the date of acquisition and that are readily convertible to known amounts of cash with insignificant risk of change in value.
| 2.13 | CREDITORS
Short-term creditors are measured at the transaction price. Other financial liabilities, including bank loans, are measured initially at fair value, net of transaction costs, and are measured subsequently at amortised cost using the effective interest method.
3. | EMPLOYEES
| The average monthly number of employees, including directors, during the year was 10 (2024 - 5).
Page 5
CLOCK BIO LIMITED NOTES TO THE FINANCIAL STATEMENTS FOR THE YEAR ENDED 31 DECEMBER 2025
4. | INTANGIBLE ASSETS
|  | Patents
|  | £
| COST |
| At 1 January 2025 | 44,400
| Additions | 56,556
| At 31 December 2025 | 100,956
| AMORTISATION |
| At 1 January 2025 | 1,245
| Charge for the year on owned assets | 7,579
| At 31 December 2025 | 8,824
| NET BOOK VALUE |
| At 31 December 2025 | 92,132
| At 31 December 2024 | 43,155
Page 6
CLOCK BIO LIMITED NOTES TO THE FINANCIAL STATEMENTS FOR THE YEAR ENDED 31 DECEMBER 2025
5. | TANGIBLE FIXED ASSETS
|  | Plant and machinery | Office equipment | Total
|  | £ | £ | £
| COST OR VALUATION |  |  |
| At 1 January 2025 | - | 14,140 | 14,140
| Additions | 2,875 | 2,325 | 5,200
| At 31 December 2025 | 2,875 | 16,465 | 19,340
| DEPRECIATION |  |  |
| At 1 January 2025 | - | 1,620 | 1,620
| Charge for the year on owned assets | 686 | 5,260 | 5,946
| At 31 December 2025 | 686 | 6,880 | 7,566
| NET BOOK VALUE |  |  |
| At 31 December 2025 | 2,189 | 9,585 | 11,774
| At 31 December 2024 | - | 12,520 | 12,520
Page 7
CLOCK BIO LIMITED NOTES TO THE FINANCIAL STATEMENTS FOR THE YEAR ENDED 31 DECEMBER 2025
6. | FIXED ASSET INVESTMENTS
|  | Investments in subsidiary companies
|  | £
| COST OR VALUATION |
| At 1 January 2025 | 30,344
| At 31 December 2025 | 30,344
| SUBSIDIARY UNDERTAKING
| The following was a subsidiary undertaking of the Company:
| Name | Registered office | Holding
| Clock Bio GmbH | Austria | 100%
7. | DEBTORS
|  |  |  |  | 2025 | 2024
|  |  |  |  | £ | £
| Amounts owed by group undertakings | 234,433 | 133,180
| Other debtors | 1,010,666 | 488,510
| Prepayments and accrued income | 29,404 | 39,028
|  | 1,274,503 | 660,718
| Included within other debtors is a balance owed by a resigned director to the Company of £342,729 (2024 - £392,729). This loan is non-interest bearing and has no fixed date for repayment.
8. | CREDITORS: AMOUNTS FALLING DUE WITHIN ONE YEAR
|  |  |  |  | 2025 | 2024
|  |  |  |  | £ | £
| Trade creditors | 29,136 | 22,594
| Other taxation and social security | 10,870 | 16,680
| Accruals and deferred income | 31,458 | 78,495
|  | 71,464 | 117,769
Page 8
CLOCK BIO LIMITED NOTES TO THE FINANCIAL STATEMENTS FOR THE YEAR ENDED 31 DECEMBER 2025
9. | SHARE CAPITAL
|  |  |  |  | 2025 | 2024
|  |  |  |  | £ | £
|  | ALLOTTED, CALLED UP AND FULLY PAID |  |
|  | 163,317 (2024 - 163,317) A Ordinary shares of £0.00001 each | 2 | 2
|  | 937,660 (2024 - 1,004,072) Ordinary shares of £0.00001 each | 9 | 10
|  | 407,325 (2024 - 407,325) Series Seed 1 Preferred shares of £0.00001 each | 4 | 4
|  | 504,121 (2024 - 504,121) Series Seed 2 Preferred shares of £0.00001 each | 5 | 5
|  | 66,412 (2024 - Nil) Deferred shares of £0.00001 each | 1 | -
|  |  | 21 | 21
| During the period 66,412 Ordinary shares of £0.00001 were reclassified as 66,412 Deferred shares of £0.00001.
10. | COMMITMENTS UNDER OPERATING LEASES
| At 31 December 2025 the Company had future minimum lease payments due under non-cancellable operating leases for each of the following periods:
|  |  |  |  | 2025 | 2024
|  |  |  |  | £ | £
| Not later than 1 year | 39,813 | 39,813
|  | 39,813 | 39,813
Page 9