Who has been buying Skymark Airlines Inc. stock?

11 distinct investors have filed 11 disclosed large-shareholding filings in Skymark Airlines Inc. (9204), most recently on 2026-05-12. Each filer, their role, the number of shares and the price at filing are listed in the table on this page.

How many insider filings does Skymark Airlines Inc. have?

Skymark Airlines Inc. has 11 buy-side and 17 sell-side disclosures on record, covering ¥59.8B ($386.1M) in total reported value, spanning 2022-12-16 to 2026-05-12.

Where does StockDrifts get Skymark Airlines Inc. insider data?

From EDINET large-shareholding (5%+) reports — the official filing system run by the Financial Services Agency (Japan). StockDrifts parses each disclosure and matches it to daily price history; the original filings remain available directly from EDINET.

Do insider buys in Japanese stocks predict returns?

Not uniformly. StockDrifts scored 101,000+ Japanese large-shareholding filings on fixed 12-month forward returns and found the predictive power concentrated in specific filer types and filing patterns rather than spread evenly across all disclosures.

Skymark Airlines Inc. 9204

Company

スカイマーク株式会社Skymark Airlines Inc.

Investors

Buys

Total Value

¥59.8B ($386.1M)

Avg Return

-65.05%

Last Filing

2026-05-12

Skymark Airlines Inc. (9204) has 11 disclosed large-shareholding filings and 17 disclosed disposals on record, filed by 11 distinct investors. Together those filings cover ¥59.8B ($386.1M) in reported transaction value. The earliest filing StockDrifts holds for Skymark Airlines Inc. is dated 2022-12-16; the most recent is 2026-05-12. All of it is parsed from EDINET large-shareholding (5%+) reports, the official disclosure system operated by the Financial Services Agency (Japan). Across these filings the average return since disclosure is -65.05%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent filings

Date	Type	Source	Insider	Purpose	Shares	Price at filing	Return	Value
2026-05-12	BUY	Market Buy	鈴木與平	passive	100.0K	¥325	+24.9%	¥33M ($210K)
2026-05-12	BUY	Market Buy	鈴与ホールディングス株式会社	passive	3.7M	¥325	+24.9%	¥1.2B ($7.8M)
2026-05-12	BUY	Market Buy	鈴与株式会社	passive	11.4M	¥325	+24.9%	¥3.7B ($24.0M)
2026-05-12	BUY	Market Buy	鈴与ホールディングス株式会社	passive	3.7M	¥325	+24.9%	¥1.2B ($7.8M)
2026-05-12	BUY	Market Buy	鈴与株式会社	passive	11.4M	¥325	+24.9%	¥3.7B ($24.0M)
2026-05-12	BUY	Market Buy	鈴木與平	passive	100.0K	¥325	+24.9%	¥33M ($210K)
2025-11-14	BUY	unknown	株式会社エアトリ AirTrip Corp.	other	3.0M	¥397	-12.1%	¥1.2B ($7.8M)
2025-01-27	SELL	unknown	株式会社日本政策投資銀行 Development Bank of Japan Inc.	unknown	0	¥621	+43.8%	¥2.1B ($13.4M)
2025-01-27	SELL	Market Buy	株式会社日本政策投資銀行 Development Bank of Japan Inc.	passive	3.3M	¥621	+43.8%	¥1.9B ($12.0M)
2025-01-27	BUY	Market Buy	鈴与ホールディングス株式会社 SUZUYO HOLDINGS Co.,Ltd	passive	3.3M	¥621	-43.8%	¥2.1B ($13.4M)
2024-08-01	BUY	Market Buy	鈴与株式会社 SUZUYO CO.,LTD	passive	11.4M	¥741	-52.9%	¥2.7B ($17.2M)
2024-08-01	SELL	unknown	鈴与ホールディングス株式会社 SUZUYO HOLDINGS Co.,Ltd	unknown	0	¥741	+52.9%	¥2.7B ($17.1M)
2024-08-01	BUY	Market Buy	鈴与株式会社 SUZUYO CO.,LTD	passive	11.4M	¥741	-52.9%	¥8.5B ($54.7M)
2024-03-27	SELL	unknown	インテグラル・オーエス株式会社 Integral OS Co., Ltd.	other	0	¥1,010	+65.5%	¥1.2B ($7.5M)
2024-03-27	SELL	Market Buy	鈴与ホールディングス株式会社 SUZUYO HOLDINGS Co.,Ltd	passive	3.6M	¥1,010	+65.5%	¥4.3B ($27.8M)
2024-03-27	BUY	Market Buy	鈴与株式会社 SUZUYO CO.,LTD	passive	7.8M	¥1,010	-65.5%	¥7.9B ($51.2M)
2024-03-27	BUY	Market Buy	鈴与株式会社 SUZUYO CO.,LTD	passive	7.8M	¥1,010	-65.5%	¥7.9B ($51.2M)
2024-03-27	SELL	unknown	インテグラルパートナーズ (ケイマン) ツー (エー) リミテッド INTEGRAL PARTNERS (CAYMAN) TWO (A) LIMITED.	other	0	¥1,010	+65.5%	¥24.4B ($157.2M)
2024-03-27	SELL	unknown	インテグラル・パートナーズ株式会社 Integral Partners Corporation	other	0	¥1,010	+65.5%	¥2.2B ($14.3M)
2024-01-16	BUY	Market Buy	インテグラル・オーエス株式会社 Integral OS Co., Ltd.	passive	1.1M	¥1,013	-65.5%	¥1.2B ($7.5M)
2024-01-16	SELL	Market Buy	インテグラルパートナーズ (ケイマン) ツー (エー) リミテッド INTEGRAL PARTNERS (CAYMAN) TWO (A) LIMITED.	passive	243.0K	¥1,013	+65.5%	¥86M ($552K)
2024-01-16	SELL	Market Buy	インテグラル・パートナーズ株式会社 Integral Partners Corporation	passive	2.2M	¥1,013	+65.5%	¥746M ($4.8M)
2023-11-10	BUY	Market Buy	鈴与ホールディングス株式会社 SUZUYO HOLDINGS Co.,Ltd	passive	7.8M	¥1,039	-66.4%	¥8.2B ($52.6M)
2023-11-09	BUY	Market Buy	インテグラル・オーエス株式会社 Integral OS Co., Ltd.	passive	1.1M	¥1,054	-66.9%	¥1.2B ($7.8M)
2023-11-09	SELL	Market Buy	インテグラルパートナーズ (ケイマン) ツー (エー) リミテッド INTEGRAL PARTNERS (CAYMAN) TWO (A) LIMITED.	passive	324.4K	¥1,054	+66.9%	¥820M ($5.3M)
2023-11-09	BUY	Market Buy	インテグラル・パートナーズ株式会社 Integral Partners Corporation	passive	2.9M	¥1,054	-66.9%	¥3.0B ($19.3M)
2023-10-24	BUY	Market Buy	インテグラル・オーエス株式会社 Integral OS Co., Ltd.	passive	1.1M	¥921	-62.1%	¥1.1B ($6.8M)
2023-10-24	SELL	Market Buy	インテグラルパートナーズ (ケイマン) ツー (エー) リミテッド INTEGRAL PARTNERS (CAYMAN) TWO (A) LIMITED.	passive	1.1M	¥921	+62.1%	¥183M ($1.2M)
2023-10-24	SELL	Market Buy	インテグラル・パートナーズ株式会社 Integral Partners Corporation	passive	10.0M	¥921	+62.1%	¥1.6B ($10.5M)
2023-09-25	SELL	Market Buy	M&Gインベストメント・マネジメント・リミテッド(M&G Investment Management Limited) M&G Investment Management Limited	passive	2.6M	¥1,060	+67.1%	¥998M ($6.4M)
2023-06-07	BUY	Market Buy	M&Gインベストメント・マネジメント・リミテッド(M&G Investment Management Limited) M&G Investment Management Limited	passive	3.5M	¥1,202	-71.0%	¥4.2B ($27.3M)
2023-04-21	SELL	Market Buy	キャピタル・リサーチ・アンド・マネージメント・カンパニー(Capital Research and Management Company) Capital Research and Management Company	passive	2.9M	¥1,085	+67.8%	¥1.7B ($11.0M)
2023-01-12	BUY	Market Buy	インテグラル・オーエス株式会社 Integral OS Co., Ltd.	passive	1.1M	¥1,301	-73.2%	¥1.5B ($9.6M)
2023-01-12	SELL	Market Buy	インテグラルパートナーズ (ケイマン) ツー (エー) リミテッド INTEGRAL PARTNERS (CAYMAN) TWO (A) LIMITED.	passive	1.3M	¥1,301	+73.2%	¥267M ($1.7M)
2023-01-12	SELL	Market Buy	インテグラル・パートナーズ株式会社 Integral Partners Corporation	passive	11.8M	¥1,301	+73.2%	¥2.4B ($15.7M)
2023-01-11	SELL	Market Buy	株式会社日本政策投資銀行 Development Bank of Japan Inc.	passive	6.4M	¥1,341	+74.0%	¥2.8B ($18.0M)
2023-01-11	BUY	Market Buy	株式会社日本政策投資銀行 Development Bank of Japan Inc.	passive	6.4M	¥1,341	-74.0%	¥2.8B ($18.0M)
2022-12-22	BUY	Market Buy	キャピタル・リサーチ・アンド・マネージメント・カンパニー(Capital Research and Management Company) Capital Research and Management Company	passive	4.5M	¥1,452	-76.0%	¥6.5B ($42.2M)
2022-12-20	BUY	Market Buy	ANAホールディングス株式会社 ANA HOLDINGS INC.	strategic	7.8M	¥1,363	-74.4%	¥10.6B ($68.6M)
2022-12-19	BUY	Market Buy	インテグラル・オーエス株式会社 Integral OS Co., Ltd.	passive	1.1M	¥1,500	-76.7%	¥1.7B ($11.1M)
2022-12-19	BUY	Market Buy	インテグラルパートナーズ (ケイマン) ツー (エー) リミテッド INTEGRAL PARTNERS (CAYMAN) TWO (A) LIMITED.	passive	1.5M	¥1,500	-76.7%	¥2.3B ($14.6M)
2022-12-19	BUY	Market Buy	インテグラル・パートナーズ株式会社 Integral Partners Corporation	passive	13.6M	¥1,500	-76.7%	¥20.5B ($132.1M)
2022-12-16	BUY	Market Buy	株式会社日本政策投資銀行 Development Bank of Japan Inc.	passive	8.4M	¥1,388	-74.9%	¥11.7B ($75.5M)

Frequently asked questions

Who has been buying Skymark Airlines Inc. stock?: 11 distinct investors have filed 11 disclosed large-shareholding filings in Skymark Airlines Inc. (9204), most recently on 2026-05-12. Each filer, their role, the number of shares and the price at filing are listed in the table on this page.
How many insider filings does Skymark Airlines Inc. have?: Skymark Airlines Inc. has 11 buy-side and 17 sell-side disclosures on record, covering ¥59.8B ($386.1M) in total reported value, spanning 2022-12-16 to 2026-05-12.
Where does StockDrifts get Skymark Airlines Inc. insider data?: From EDINET large-shareholding (5%+) reports — the official filing system run by the Financial Services Agency (Japan). StockDrifts parses each disclosure and matches it to daily price history; the original filings remain available directly from EDINET.
Do insider buys in Japanese stocks predict returns?: Not uniformly. StockDrifts scored 101,000+ Japanese large-shareholding filings on fixed 12-month forward returns and found the predictive power concentrated in specific filer types and filing patterns rather than spread evenly across all disclosures.

Source filings

Every trade listed above is disclosed in EDINET large-shareholding (5%+) reports, filed with the Financial Services Agency (Japan). View the original EDINET filings for Skymark Airlines Inc.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.