Half-year report · HY

Period2026-01-01 → 2026-06-30
Filed2026-08-07
StandardJapan GAAP
ConsolidatedYes
Data checks14 of 14 passed
Key figures · 44
MetricValuePeriodScopeSource row
Revenue¥5.9bn2026-01-01 → 2026-06-30Cons.Net sales
Revenue¥10.8bn2025-01-01 → 2025-12-31Cons.Net sales (5-year summary)
Revenue¥5.4bn2025-01-01 → 2025-06-30Cons.Net sales
Operating income¥279m2026-01-01 → 2026-06-30Cons.Operating income
Operating income¥276m2025-01-01 → 2025-06-30Cons.Operating income
Ordinary income¥340m2026-01-01 → 2026-06-30Cons.Ordinary income
Ordinary income¥489m2025-01-01 → 2025-12-31Cons.Ordinary income loss (5-year summary)
Ordinary income¥343m2025-01-01 → 2025-06-30Cons.Ordinary income
Profit before tax¥409m2026-01-01 → 2026-06-30Cons.Income before income taxes
Profit before tax¥371m2025-01-01 → 2025-06-30Cons.Income before income taxes
Net income (owners)¥277m2026-01-01 → 2026-06-30Cons.Profit loss attributable to owners of parent
Net income (owners)¥337m2025-01-01 → 2025-12-31Cons.Profit loss attributable to owners of parent (5-year summary)
Net income (owners)¥250m2025-01-01 → 2025-06-30Cons.Profit loss attributable to owners of parent
Net income¥289m2026-01-01 → 2026-06-30Cons.Profit loss
Net income¥255m2025-01-01 → 2025-06-30Cons.Profit loss
Total assets¥12.8bnat 2026-06-30Cons.Assets
Total assets¥12.7bnat 2025-12-31Cons.Assets
Total assets¥11.8bnat 2025-06-30Cons.Total assets (5-year summary)
Total liabilities¥2.5bnat 2026-06-30Cons.Liabilities
Total liabilities¥2.7bnat 2025-12-31Cons.Liabilities
Net assets / equity¥10.3bnat 2026-06-30Cons.Net assets
Net assets / equity¥10.0bnat 2025-12-31Cons.Net assets
Net assets / equity¥9.7bnat 2025-06-30Cons.Net assets (5-year summary)
Cash and deposits¥3.5bnat 2026-06-30Cons.Cash and deposits
Cash and deposits¥2.7bnat 2025-12-31Cons.Cash and deposits
Cash & equivalents¥3.5bnat 2026-06-30Cons.Cash and cash equivalents
Cash & equivalents¥2.7bnat 2025-12-31Cons.Cash and cash equivalents
Cash & equivalents¥2.9bnat 2025-06-30Cons.Cash and cash equivalents
Cash & equivalents¥2.4bnat 2024-12-31vCons.Cash and cash equivalents
Operating cash flow¥718m2026-01-01 → 2026-06-30Cons.Net cash provided by used in operating activities
Operating cash flow¥595m2025-01-01 → 2025-12-31Cons.Net cash provided by used in operating activities (5-year summary)
Operating cash flow¥694m2025-01-01 → 2025-06-30Cons.Net cash provided by used in operating activities
Investing cash flow¥138m2026-01-01 → 2026-06-30Cons.Net cash provided by used in investment activities
Investing cash flow¥43m2025-01-01 → 2025-12-31Cons.Net cash provided by used in investing activities (5-year summary)
Investing cash flow¥33m2025-01-01 → 2025-06-30Cons.Net cash provided by used in investment activities
Financing cash flow−¥145m2026-01-01 → 2026-06-30Cons.Net cash provided by used in financing activities
Financing cash flow−¥283m2025-01-01 → 2025-12-31Cons.Net cash provided by used in financing activities (5-year summary)
Financing cash flow−¥209m2025-01-01 → 2025-06-30Cons.Net cash provided by used in financing activities
EPS (basic)¥48.792026-01-01 → 2026-06-30Cons.Basic earnings loss per share (5-year summary)
EPS (basic)¥59.262025-01-01 → 2025-12-31Cons.Basic earnings loss per share (5-year summary)
EPS (basic)¥44.032025-01-01 → 2025-06-30Cons.Basic earnings loss per share (5-year summary)
Equity ratio76.0%at 2026-06-30Cons.Equity to asset ratio (5-year summary)
Equity ratio74.0%at 2025-12-31Cons.Equity to asset ratio (5-year summary)
Equity ratio77.1%at 2025-06-30Cons.Equity to asset ratio (5-year summary)

Periods use the dates stated in the filing. d = earlier-year period dated by calendar; v = that date confirmed by the company's own earlier filing.

All source rows · 421
ItemContextValueUnit
Identification of document subject to amendmentFilingDateInstant-
Report amendment flagFilingDateInstantfalse
Xbrl amendment flagFilingDateInstantfalse
Business results of group (text)FilingDateInstantText · Plus
Description of business (text)FilingDateInstantText · Plus
Business risks (text)FilingDateInstantText · Plus
Management analysis of financial position operating results and cash flows (text)FilingDateInstantText · Plus
Critical contracts (text)FilingDateInstantText · Plus
Total number of shares (text)FilingDateInstantText · Plus
Issued shares total number of shares etc (text)FilingDateInstantText · Plus
Class issued shares total number of shares etcFilingDateInstant_OrdinaryShareMember
Original text (Japanese)普通株式
Name of financial instruments exchange on which securities are listed or authorized financial instruments business association to which securities are registeredFilingDateInstant_OrdinaryShareMember
Original text (Japanese)東京証券取引所スタンダード市場
Description issued shares total number of shares etcFilingDateInstant_OrdinaryShareMember
Original text (Japanese)単元株式数100株
Details of employee share option program (text)FilingDateInstantText · Plus
Other information on share acquisition rights (text)FilingDateInstantText · Plus
Exercises etc of moving strike convertible bonds etc (text)FilingDateInstantText · Plus
Changes in number of issued shares stated capital etc (text)FilingDateInstantText · Plus
Major shareholders (text)FilingDateInstantText · Plus
Name major shareholdersInterimInstant_No1MajorShareholdersMember
Original text (Japanese)東京中小企業投資育成株式会社
Address major shareholdersInterimInstant_No1MajorShareholdersMember
Original text (Japanese)東京都渋谷区渋谷3丁目29番22号
Name major shareholdersInterimInstant_No2MajorShareholdersMember
Original text (Japanese)みずほ信託銀行株式会社 退職給付信託 コスモ石油口 再信託受託者 株式会社日本カストディ銀行
Address major shareholdersInterimInstant_No2MajorShareholdersMember
Original text (Japanese)東京都中央区晴海1丁目8番12号
Name major shareholdersInterimInstant_No3MajorShareholdersMember
Original text (Japanese)UH Partners2投資事業有限責任組合
Address major shareholdersInterimInstant_No3MajorShareholdersMember
Original text (Japanese)東京都豊島区南池袋2丁目9番9号
Name major shareholdersInterimInstant_No4MajorShareholdersMember
Original text (Japanese)光通信KK投資事業有限責任組合
Address major shareholdersInterimInstant_No4MajorShareholdersMember
Original text (Japanese)東京都豊島区西池袋1丁目4番10号
Name major shareholdersInterimInstant_No5MajorShareholdersMember
Original text (Japanese)UH Partners3投資事業有限責任組合
Address major shareholdersInterimInstant_No5MajorShareholdersMember
Original text (Japanese)東京都豊島区南池袋2丁目9番9号
Name major shareholdersInterimInstant_No6MajorShareholdersMember
Original text (Japanese)櫻井 治久
Address major shareholdersInterimInstant_No6MajorShareholdersMember
Original text (Japanese)東京都町田市
Name major shareholdersInterimInstant_No7MajorShareholdersMember
Original text (Japanese)コスモ・バイオ従業員持株会
Address major shareholdersInterimInstant_No7MajorShareholdersMember
Original text (Japanese)東京都江東区東陽2丁目2番20号
Name major shareholdersInterimInstant_No8MajorShareholdersMember
Original text (Japanese)鈴木 由美子
Address major shareholdersInterimInstant_No8MajorShareholdersMember
Original text (Japanese)千葉県習志野市
Name major shareholdersInterimInstant_No9MajorShareholdersMember
Original text (Japanese)高橋 潔
Address major shareholdersInterimInstant_No9MajorShareholdersMember
Original text (Japanese)神奈川県厚木市
Name major shareholdersInterimInstant_No10MajorShareholdersMember
Original text (Japanese)舩戸 俊明
Address major shareholdersInterimInstant_No10MajorShareholdersMember
Original text (Japanese)千葉県船橋市
Issued shares voting rights (text)FilingDateInstantText · Plus
Description issued shares voting rightsInterimInstant_SharesWithNoVotingRightsMember-
Description issued shares voting rightsInterimInstant_SharesWithRestrictedVotingRightsTreasurySharesEtcMember-
Description issued shares voting rightsInterimInstant_SharesWithRestrictedVotingRightsOtherMember-
Description issued shares voting rightsInterimInstant_SharesWithFullVotingRightsTreasurySharesEtcMember
Original text (Japanese)(注)1
Description issued shares voting rightsInterimInstant_SharesWithFullVotingRightsOtherMember
Original text (Japanese)(注)1
Description issued shares voting rightsInterimInstant_SharesLessThanOneUnitMember
Original text (Japanese)(注)2
Treasury shares etc (text)FilingDateInstantText · Plus
Name of shareholder treasury shares etcInterimInstant_Row1Member
Original text (Japanese)コスモ・バイオ株式会社
Address of shareholder treasury shares etcInterimInstant_Row1Member
Original text (Japanese)東京都江東区東陽二丁目2番20号
Information about officers (text)FilingDateInstantText · Plus
Regulations in accordance with which consolidated financial statements have been prepared financial informationInterimDurationText · Plus

Every row of the EDINET CSV. Item names are the XBRL element names; filed text is kept in its original Japanese. Filed text is available on Plus and Pro.

Data checks · 14 of 14 passed
balance sheet identityconsolidated 2025-12-31pass rounding
balance sheet identityconsolidated 2026-06-30pass rounding
dei present pass
period resolution pass
statement vs summary · net assetsconsolidated 2025-12-31pass
statement vs summary · net assetsconsolidated 2026-06-30pass
statement vs summary · net income attributable to parentconsolidated 2025-01-01/2025-06-30pass
statement vs summary · net income attributable to parentconsolidated 2026-01-01/2026-06-30pass
statement vs summary · operating cash flowconsolidated 2025-01-01/2025-06-30pass
statement vs summary · operating cash flowconsolidated 2026-01-01/2026-06-30pass
statement vs summary · revenueconsolidated 2025-01-01/2025-06-30pass
statement vs summary · revenueconsolidated 2026-01-01/2026-06-30pass
statement vs summary · total assetsconsolidated 2025-12-31pass
statement vs summary · total assetsconsolidated 2026-06-30pass