【3841】ジーダット

CADソフト(LSI、液晶パネルの設計用)の開発・販売。アルゴグラフィックスが親会社。

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【業界1位】 LINEヤフー

【売上同水準】 グリッド アイデミー

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IRニュース IRカレンダー 中期経営計画 経営理念 社長 役員紹介 沿革 事業内容 会社概要 大株主 事業説明会 外部レポート

保有者	2014.3	2014.9	2015.3	2015.9	2016.3	2016.9	2017.3	2017.9	2018.3	2018.9	2019.3	2019.9	2020.3	2020.9	2021.3	2021.9	2022.3	2022.9	2023.3	2023.9	2024.3	2024.9	2025.3	2025.9
(株)アルゴグラフィックス	990,000 (50.8%)	990,000 (50.8%)	990,000 (50.8%)	990,000 (50.8%)	990,000 (50.8%)	990,000 (50.8%)	990,000 (50.8%)	990,000 (50.8%)	990,000 (51.6%)	990,000 (51.5%)	990,000 (51.5%)	990,000 (51.6%)	990,000 (51.6%)	990,000 (51.5%)	990,000 (51.5%)	990,000 (51.5%)	990,000 (51.5%)	1,980,000 (51.4%)	1,980,000 (51.4%)	1,980,000 (51.4%)	1,980,000 (51.4%)	1,980,000 (51.4%)	1,980,000 (51.4%)	1,980,000 (51.4%)
セイコーインスツル株式会社	408,000 (20.9%)	408,000 (20.9%)	408,000 (20.9%)	408,000 (20.9%)	408,000 (20.9%)	408,000 (20.9%)	408,000 (20.9%)	408,000 (20.9%)	408,000 (21.3%)	408,000 (21.2%)	408,000 (21.2%)	408,000 (21.2%)	408,000 (21.2%)	408,000 (21.2%)	408,000 (21.2%)	408,000 (21.2%)	408,000 (21.2%)	816,000 (21.2%)	816,000 (21.2%)	816,000 (21.2%)	816,000 (21.2%)	816,000 (21.2%)	816,000 (21.2%)	816,000 (21.2%)
株式会社SBI証券	34,700 (1.8%)	83,800 (4.3%)	14,700 (0.8%)						13,400 (0.7%)							13,500 (0.7%)	12,300 (0.6%)	20,400 (0.5%)		25,200 (0.7%)	25,200 (0.7%)	56,800 (1.5%)		62,673 (1.6%)
ジーダット従業員持株会	59,500 (3.1%)	58,200 (3.0%)	51,600 (2.6%)	51,900 (2.7%)	48,600 (2.5%)	50,500 (2.6%)	51,500 (2.6%)	52,700 (2.7%)	52,700 (2.7%)	45,600 (2.4%)	46,400 (2.4%)	45,600 (2.4%)	46,500 (2.4%)	47,400 (2.5%)	45,500 (2.4%)	44,800 (2.3%)	39,200 (2.0%)	65,200 (1.7%)	52,100 (1.4%)	53,600 (1.4%)	53,700 (1.4%)	55,000 (1.4%)	55,400 (1.4%)	56,800 (1.5%)
楽天証券株式会社共有口																								40,800 (1.1%)
MSIP CLIENT SECURITIES(常任代理人 モルガン・スタンレーMUFG証券株式会社)					13,400 (0.7%)	13,400 (0.7%)																	43,900 (1.1%)	25,300 (0.7%)
久保田 正明								10,000 (0.5%)	10,000 (0.5%)	10,000 (0.5%)	30,000 (1.6%)	30,000 (1.6%)	30,000 (1.6%)	30,000 (1.6%)	30,000 (1.6%)	30,000 (1.6%)	30,000 (1.6%)	60,000 (1.6%)	60,000 (1.6%)	60,000 (1.6%)	40,000 (1.0%)	40,000 (1.0%)	40,000 (1.0%)	25,000 (0.6%)
株式会社エスケーエレクトロニクス	9,000 (0.5%)	9,000 (0.5%)	9,000 (0.5%)	9,000 (0.5%)	9,000 (0.5%)			9,000 (0.5%)			9,000 (0.5%)		9,000 (0.5%)	9,000 (0.5%)	9,000 (0.5%)	9,000 (0.5%)			18,000 (0.5%)	18,000 (0.5%)	18,000 (0.5%)	18,000 (0.5%)	18,000 (0.5%)	18,000 (0.5%)
大日本印刷株式会社	9,000 (0.5%)	9,000 (0.5%)	9,000 (0.5%)	9,000 (0.5%)	9,000 (0.5%)			9,000 (0.5%)					9,000 (0.5%)	9,000 (0.5%)	9,000 (0.5%)	9,000 (0.5%)			18,000 (0.5%)	18,000 (0.5%)	18,000 (0.5%)	18,000 (0.5%)	18,000 (0.5%)	18,000 (0.5%)
柿木利彦																						17,600 (0.5%)	17,600 (0.5%)	17,600 (0.5%)
若林 敬三									12,600 (0.7%)	13,000 (0.7%)							9,300 (0.5%)	19,000 (0.5%)	19,000 (0.5%)	20,000 (0.5%)	28,000 (0.7%)		28,000 (0.7%)
今井 日出樹																						15,600 (0.4%)	15,600 (0.4%)
青山 憲治																7,600 (0.4%)						15,200 (0.4%)
兼浜 勝弘																		22,000 (0.6%)	40,300 (1.0%)	51,000 (1.3%)	51,000 (1.3%)
尾崎 敬郎										9,200 (0.5%)	9,400 (0.5%)	9,400 (0.5%)	9,400 (0.5%)	9,400 (0.5%)	11,100 (0.6%)	11,200 (0.6%)	10,000 (0.5%)	20,000 (0.5%)	20,600 (0.5%)	20,700 (0.5%)	21,900 (0.6%)
JPモルガン証券株式会社																	9,400 (0.5%)	19,800 (0.5%)	18,100 (0.5%)
楽天証券株式会社												16,900 (0.9%)				26,200 (1.4%)	11,500 (0.6%)	21,800 (0.6%)
島田 照夫																	11,800 (0.6%)
BNY GCM CLIENT ACCOUNT JPRD AC ISG (FE-AC)(常任代理人 株式会社三菱UFJ銀行)					23,200 (1.2%)	23,300 (1.2%)	13,700 (0.7%)				16,100 (0.8%)			12,600 (0.7%)	20,020 (1.0%)
株式会社日本カストディ銀行 (信託口)				23,900 (1.2%)	25,400 (1.3%)	24,900 (1.3%)	12,000 (0.6%)	24,800 (1.3%)	24,000 (1.3%)	34,100 (1.8%)	37,400 (1.9%)	12,400 (0.6%)	36,800 (1.9%)	43,400 (2.3%)	18,800 (1.0%)
GOLDMAN SACHS INTERNATIONAL(常任代理人 ゴールドマン・サックス証券株式会社)				11,700 (0.6%)			21,400 (1.1%)							10,800 (0.6%)	18,680 (1.0%)
日本証券金融株式会社	18,200 (0.9%)	14,400 (0.7%)	13,800 (0.7%)	17,800 (0.9%)									9,400 (0.5%)		9,400 (0.5%)
宮下 英尚			10,200 (0.5%)	19,300 (1.0%)	22,300 (1.1%)	22,900 (1.2%)	15,300 (0.8%)	20,100 (1.0%)	19,500 (1.0%)	18,800 (1.0%)	18,900 (1.0%)	10,400 (0.5%)	16,600 (0.9%)
松井証券株式会社		9,100 (0.5%)	9,200 (0.5%)	10,100 (0.5%)			11,100 (0.6%)	9,500 (0.5%)	9,500 (0.5%)	10,400 (0.5%)		15,800 (0.8%)
道家 貢												12,200 (0.6%)
加藤 久夫									12,000 (0.6%)	10,100 (0.5%)	10,100 (0.5%)
水澤 千秋								11,800 (0.6%)
新井郁子							14,900 (0.8%)
伊東和美							10,900 (0.6%)
高橋 雅史				9,700 (0.5%)	11,500 (0.6%)	12,200 (0.6%)
水口 貴雅						11,400 (0.6%)
DEUTSCHE BANK AG LONDON GPF CLIENT OMNI-FULL TAX 613(常任代理人 ドイツ証券株式会社)					10,500 (0.5%)	10,500 (0.5%)
(株)図研	9,000 (0.5%)	9,000 (0.5%)	9,000 (0.5%)	9,000 (0.5%)	9,000 (0.5%)
MSCO CUSTOMER SECURITIES(常任代理人 モルガン・スタンレーMUFG証券株式会社)			13,900 (0.7%)	11,000 (0.6%)
宮城 勇気		13,300 (0.7%)	29,400 (1.5%)
櫻井 春樹	8,000 (0.4%)	10,700 (0.5%)
増山 雅美	7,500 (0.4%)
宗形 恒夫	7,500 (0.4%)
香月 弘幸	7,500 (0.4%)