Machinery · Fiscal year end Mar 31

KOIKE SANSO KOGYO CO.,LTD.

6137

小池酸素工業株式会社

FIGI BBG000BP0J546137.T6137 JPCorp. no. 7011701002789

Latest half-year results

First half · fiscal year to 2026-03 · filed 2025-11-12

For the first half of the fiscal year to 2026-03: Revenue ¥23.2 billion (-8.7% YoY), Ordinary income ¥1.3 billion (-51.6% YoY), Net income ¥0.6 billion (-62.6% YoY).

	This period	Year on year
Revenue	¥23.2bn	-8.7%
Ordinary profit	¥1.3bn	-51.6%
Net profit to owners	¥584m	-62.6%

From the securities report on EDINET, which states no forecast. History via /v1/companies/6137/earnings-releases.

Financials

Japan GAAP · consolidated · fiscal year to 2026-03-31

Revenue: ¥55.6bn
Net income: ¥3.5bn
ROE: 7.7%
Equity ratio: 59.3%
Dividend / share: ¥50
Employees: 1,085

Revenue · ¥bn

Net income · ¥bn

Fiscal year	Revenue	Net income	Total assets	Net assets	ROE	EPS	Operating CF
2026-03-31	¥55.6bn	¥3.5bn	¥79.1bn	¥50.1bn	7.7%	¥164.04	¥4.1bn
2025-03-31	¥55.2bn	¥3.6bn	¥74.7bn	¥45.6bn	8.9%	¥172.47	¥3.7bn
2024-03-31	¥51.4bn	¥3.1bn	¥73.5bn	¥42.4bn	8.4%	¥145.59	¥4.3bn
2023-03-31	¥47.9bn	¥2.1bn	¥64.9bn	¥36.1bn	6.5%	¥98.83	¥5.6bn
2022-03-31	¥41.8bn	¥1.0bn	¥59.9bn	¥33.7bn	3.3%	¥47.86	¥3.8bn

Indicators

Computed by us from filings · fiscal year to 2026-03-31

Metric	Value	Percentile among listed companies
ROE, %	7.74	43.7
Ordinary margin	0.0964	66.2
Equity ratio, %	59.33	57.2
Revenue growth	0.0066	28.1
Net income growth	-0.0473	31.6
Operating cash flow / assets	0.0516	41.6

Policy-uncertainty measure2.86 Share of the report's text discussing policy-related uncertainty, by policy area. Proprietary text method.

Trade & tariffs 3 Fiscal & tax 3 Politics & geopolitics 3

Ownership activity 0 filer(s) stated they may make proposals in 365 days; 0 new 5% holder(s) in 180 days; net stake change 0.00pt in 90 days; 27.3% held by other listed companies.

Results wording balance: +0.11. Proprietary text method; it describes the wording only and does not interpret context.

Interest example: if all ¥5.8bn of reported debt repriced by 50 basis points, a year's interest would rise by ¥29m, 0.7% of operating cash flow. Our arithmetic only, not a forecast: fixed-rate debt and hedges are ignored.

Via /v1/companies/6137/indicators. Descriptive figures, not a rating and not investment advice.

From other filings

As the company states them

Internal control, 2026-06-25: see filing 上記の評価の結果、当事業年度末日時点において、当社の財務報告に係る内部統制は有効であると判断しました。 Filing

Segments, votes and tender offers

Stated in EDINET filings

Segments: Cutting and Welding Solution, High Pressure Gas, Welding Supplies, Other. /v1/companies/6137/segments

Latest voting result: 2026-06-26 · 剰余金の処分の件 · passed. /v1/companies/6137/voting

Ownership changes

All companies →

2024-07-29

Decrease−0.08pt

Mitsubishi UFJ Financial Group, Inc. reduced holdings in KOIKE SANSO KOGYO CO.,LTD. (6137) to 5.10% from 5.18%.

S100U3L9Filer profile Original filing (PDF, Japanese)
2023-12-13

Below 5%−7.62pt

individual filer cut holdings in KOIKE SANSO KOGYO CO.,LTD. (6137) to 0.00% from 7.62%, below the 5% threshold.

S100S89ROriginal filing (PDF, Japanese)
2023-12-13

New 5% stake

individual filer disclosed a 8.56% stake in KOIKE SANSO KOGYO CO.,LTD. (6137), crossing the 5% reporting threshold.

S100SGBVOriginal filing (PDF, Japanese)
2021-12-28

New 5% stake

individual filer disclosed a 7.62% stake in KOIKE SANSO KOGYO CO.,LTD. (6137), crossing the 5% reporting threshold.

S100N585Original filing (PDF, Japanese)
2021-12-28

Amendment0.00pt

individual filer filed a correction to a 5% report on KOIKE SANSO KOGYO CO.,LTD. (6137).

S100N5HDOriginal filing (PDF, Japanese)
2021-12-28

Amendment−7.39pt

individual filer filed a correction to a 5% report on KOIKE SANSO KOGYO CO.,LTD. (6137).

S100N5I5Original filing (PDF, Japanese)
2021-12-28

Increase+0.54pt

NIPPON SANSO HOLDINGS CORPORATION raised holdings in KOIKE SANSO KOGYO CO.,LTD. (6137) to 5.90% from 5.36%.

S100N5JCFiler profile Original filing (PDF, Japanese)
2021-12-27

Below 5%−7.39pt

individual filer cut holdings in KOIKE SANSO KOGYO CO.,LTD. (6137) to 0.00% from 7.39%, below the 5% threshold.

S100N58ROriginal filing (PDF, Japanese)

Trades by 5% holders

From the 60-day trade tables in 5% reports

Holder	Period	Net shares	Net % of shares	Avg. filed price	Range
individual filer	2021-12-20 – 2023-12-06	-40,169	−0.89pt	—	—
individual filer	2023-12-06 – 2023-12-06	+386,971	+8.56pt	—	—
individual filer	2021-10-25 – 2021-12-20	-340,602	−7.54pt	—	—

Net shares and the average are our calculations. Prices are filed prices as stated by the filer, mostly for off-market trades; they are not market prices. Stock lending, custody transfers and option exercises are excluded from net shares. Every row via /v1/companies/6137/trades.

5% filings

Large shareholding reports on 6137

Filed	Filer	Stake	Change	Stated purpose
2024-07-29	Mitsubishi UFJ Financial Group, Inc.	5.10%	−0.08pt	strategic holding
2023-12-13	individual filer	0.00%	−7.62pt	—
2023-12-13	individual filer	8.56%	—	—
2021-12-28	individual filer	7.62%	—	—
2021-12-28	individual filer	7.62%	—	—
2021-12-28	individual filer	0.00%	−7.39pt	—
2021-12-28	NIPPON SANSO HOLDINGS CORPORATION	5.90%	+0.54pt	strategic holding
2021-12-27	individual filer	0.00%	−7.39pt	—

Cross-shareholdings

From the annual report's status of shareholdings

Listed strategic holdings: 17 issues
Book value: ¥10.8bn
Sold in the year: ¥24m 2 issues
Bought in the year: ¥18m 3 issues
Mutual, both reports: 12
Held by listed cos.: 16

Holds	Book value	Shares vs. prior year	Mutual
NIPPON SANSO HOLDINGS CORPORATION 4091	¥5,832m	0.0%	both reports
NIPPON SANSO HOLDINGS CORPORATION 4091	¥1,449m	0.0%	both reports
The Chiba Bank, Ltd. 8331	¥1,057m	0.0%	both reports
Mitsubishi UFJ Financial Group, Inc. 8306	¥1,017m	0.0%	stated
HOSHIIRYO-SANKI CO., LTD. 7634	¥526m	+1.3%	both reports
DAIHEN CORPORATION 6622	¥502m	+1.6%	both reports
Mebuki Financial Group,Inc. 7167	¥460m	0.0%	both reports
Namura Shipbuilding Co.,Ltd. 7014	¥425m	0.0%	both reports
The Chiba Bank, Ltd. 8331	¥399m	0.0%	both reports
IWATANI CORPORATION 8088	¥279m	0.0%	no

Held by: NIPPON SANSO HOLDINGS CORPORATION 4091, Mitsubishi Chemical Gloup Corporation 4188, The Chiba Bank, Ltd. 8331, Tokyo Kiraboshi Financial Group, Inc. 7173, MS&AD Insurance Group Holdings, Inc. 8725, Mebuki Financial Group,Inc. 7167, HOSHIIRYO-SANKI CO., LTD. 7634, Shinsho Corporation 8075, DAIHEN CORPORATION 6622, KOATSU GAS KOGYO CO., LTD. 4097, AIR WATER INC. 4088, Namura Shipbuilding Co.,Ltd. 7014 and 4 more

Purposes, all holdings and mutual flags via /v1/companies/6137/cross-holdings. Share changes include stock splits.

Major shareholders

As of fiscal year end 2026-03-31

Shareholder	Shares	Ratio
小池酸素工業取引先持株会	1,939,000	9.19%
小池商事株式会社	1,358,000	6.44%
日本酸素ホールディングス株式会社	1,084,000	5.14%
株式会社三菱UFJ銀行	1,024,000	4.85%
株式会社千葉銀行	996,000	4.72%
三井住友信託銀行株式会社	871,000	4.13%
株式会社きらぼし銀行	763,000	3.61%
あいおいニッセイ同和損害　保険株式会社	721,000	3.42%
株式会社常陽銀行	565,000	2.68%
小池化学株式会社	529,000	2.51%

U.S. funds holding 6137

SEC Form N-PORT, reports to 2026-07-31

7 U.S. funds held 91,200 shares worth $0.9m.

Fund	Shares	Value	% of fund	As of
THE JAPANESE SMALL COMPANY SERIES DFA INVESTMENT TRUST CO	39,000	$0.4m	0.009%	2026-07-31
DFA INTERNATIONAL SMALL CAP VALUE PORTFOLIO DFA INVESTMENT DIMENSIONS GROUP INC	21,400	$0.2m	0.001%	2026-07-31
INTERNATIONAL CORE EQUITY 2 PORTFOLIO DFA INVESTMENT DIMENSIONS GROUP INC	21,000	$0.2m	0.000%	2026-07-31
VOYA MULTI-MANAGER INTERNATIONAL SMALL CAP FUND Voya Mutual Funds	4,000	$0.0m	0.007%	2026-07-31
Brighthouse/Dimensional International Small Company Portfolio Brighthouse Funds Trust II	2,600	$0.0m	0.005%	2026-06-30

Up to 25 funds per stock via the API.

Get this as JSON

GET /v1/companies/6137
GET /v1/companies/6137/financials
GET /v1/companies/6137/details
GET /v1/companies/6137/segments
GET /v1/companies/6137/voting
GET /v1/companies/6137/tender-offers
GET /v1/companies/6137/indicators
GET /v1/companies/6137/earnings-releases
GET /v1/events?ticker=6137
GET /v1/companies/6137/trades         
GET /v1/companies/6137/cross-holdings 
GET /v1/companies/6137/brief

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