ANNEX 1 27 ANNEX 1 COMPANY’S ANNUAL FINANCIAL STATEMENTS (FRENCH-GAAP) FOR THE FISCAL YEAR ENDING DECEMBER 31, 2017 1.BALANCE SHEET ASSETS ASSETS 12/31/17 12/31/16 In thousands of euros Note Gross Deprec. Prov. Net Net Non-current assets Intangible assets Software 1 10 10 — — Tangible assets 2 Property, plant and equipment 976 296 680 654 Other tangible assets 444 240 205 204 Assets under construction 1 — 1 — Financial assets 3 — — — — Investments — — — — Other financial assets 642 — 642 400 Total non-current assets 2,074 545 1,529 1,258 Current assets Receivables 4 Down payments 240 — 240 132 Accounts receivable 257 — 257 30 Other receivables 4,236 — 4,236 3,328 Loans and receivables 888 — 888 — Cash 5 Short-term investments — — — — Cash and cash equivalents 55,033 — 55,033 53,982 Prepaid expenses 478 — 478 442 Total current assets 61,132 — 61,132 57,914 Regularisation accounts Foreign exchange differences – assets 52 — 52 — TOTAL ASSETS 63,259 545 62,714 59,172 The attached note forms an integral part of the financial statements. 244 – GENSIGHT BIOLOGICS – 2017 Registration Document