| Date | Type | Source | Insider | Purpose | Shares | Price at filing | Return | Value |
|---|---|---|---|---|---|---|---|---|
| 2026-05-22 | BUY | unknown | 株式会社エスアイエル | unknown | 120.2K | ¥4,480 | -0.1% | ¥538M ($3.5M) |
| 2026-05-22 | BUY | unknown | 株式会社UH Partners 3 | unknown | 476.5K | ¥4,480 | -0.1% | ¥2.1B ($13.8M) |
| 2026-05-22 | BUY | unknown | 株式会社UH Partners 2 | unknown | 474.4K | ¥4,480 | -0.1% | ¥2.1B ($13.7M) |
| 2026-05-22 | BUY | unknown | 光通信株式会社 | unknown | 563.6K | ¥4,480 | -0.1% | ¥2.5B ($16.3M) |
| 2026-05-22 | BUY | Market Buy | 東京窯業株式会社 | unknown | 631.0K | ¥4,480 | -0.1% | ¥166M ($1.1M) |
| 2026-05-22 | BUY | negotiated | 大同特殊鋼株式会社 | strategic | 2.5M | ¥4,480 | -0.1% | ¥11.4B ($73.7M) |
| 2026-05-22 | BUY | unknown | 株式会社エスアイエル | unknown | 120.2K | ¥4,480 | -0.1% | ¥538M ($3.5M) |
| 2026-05-22 | BUY | unknown | 株式会社UH Partners 3 | unknown | 476.5K | ¥4,480 | -0.1% | ¥2.1B ($13.8M) |
| 2026-05-22 | BUY | unknown | 株式会社UH Partners 2 | unknown | 474.4K | ¥4,480 | -0.1% | ¥2.1B ($13.7M) |
| 2026-05-22 | BUY | unknown | 光通信株式会社 | unknown | 563.6K | ¥4,480 | -0.1% | ¥2.5B ($16.3M) |
| 2026-05-22 | BUY | unknown | 岡谷鋼機株式会社 | unknown | 752.0K | ¥4,480 | -0.1% | ¥3.4B ($21.7M) |
| 2026-05-22 | BUY | Market Buy | 東京窯業株式会社 | strategic | 631.0K | ¥4,480 | -0.1% | ¥166M ($1.1M) |
| 2026-05-22 | BUY | Market Buy | 株式会社エスアイエル | passive | 120.2K | ¥4,480 | -0.1% | ¥538M ($3.5M) |
| 2026-05-22 | BUY | Market Buy | 株式会社UH Partners 3 | passive | 476.5K | ¥4,480 | -0.1% | ¥2.1B ($13.8M) |
| 2026-05-22 | BUY | Market Buy | 株式会社UH Partners 2 | passive | 474.4K | ¥4,480 | -0.1% | ¥2.1B ($13.7M) |
| 2026-05-22 | BUY | acquisition | 光通信株式会社 | passive | 563.6K | ¥4,480 | -0.1% | ¥2.5B ($16.3M) |
| 2026-05-22 | BUY | unknown | 株式会社エスアイエル | unknown | 120.2K | ¥4,480 | -0.1% | ¥538M ($3.5M) |
| 2026-05-22 | BUY | unknown | 株式会社UH Partners 3 | unknown | 476.5K | ¥4,480 | -0.1% | ¥2.1B ($13.8M) |
| 2026-05-22 | BUY | unknown | 株式会社UH Partners 2 | unknown | 474.4K | ¥4,480 | -0.1% | ¥2.1B ($13.7M) |
| 2026-05-22 | BUY | unknown | 光通信株式会社 | unknown | 563.6K | ¥4,480 | -0.1% | ¥2.5B ($16.3M) |
| 2026-05-22 | BUY | unknown | 東京窯業株式会社 | unknown | 631.0K | ¥4,480 | -0.1% | ¥166M ($1.1M) |
| 2026-05-22 | BUY | unknown | 岡谷鋼機株式会社 | strategic | 752.0K | ¥4,480 | -0.1% | ¥3.4B ($21.7M) |
| 2026-05-22 | BUY | unknown | 株式会社エスアイエル | unknown | 120.2K | ¥4,480 | -0.1% | ¥538M ($3.5M) |
| 2026-05-22 | BUY | unknown | 株式会社UH Partners 3 | unknown | 476.5K | ¥4,480 | -0.1% | ¥2.1B ($13.8M) |
| 2026-05-22 | BUY | unknown | 株式会社UH Partners 2 | unknown | 474.4K | ¥4,480 | -0.1% | ¥2.1B ($13.7M) |
| 2026-05-22 | BUY | unknown | 光通信株式会社 | unknown | 563.6K | ¥4,480 | -0.1% | ¥2.5B ($16.3M) |
| 2026-05-22 | BUY | Market Buy | 東京窯業株式会社 | unknown | 631.0K | ¥4,480 | -0.1% | ¥166M ($1.1M) |
| 2026-05-22 | BUY | unknown | 岡谷鋼機株式会社 | strategic | 752.0K | ¥4,480 | -0.1% | ¥3.4B ($21.7M) |
| 2025-09-29 | BUY | Market Buy | 株式会社UH Partners 3 UH Partners 3 Co., Ltd. | passive | 476.5K | ¥2,028 | +10.9% | ¥32M ($207K) |
| 2025-09-29 | BUY | Market Buy | 株式会社エスアイエル SIL Co., Ltd. | passive | 120.2K | ¥2,028 | +10.9% | ¥244M ($1.6M) |
| 2025-09-29 | BUY | Market Buy | 株式会社UH Partners 2 UH Partners 2, Inc. | passive | 474.4K | ¥2,028 | +10.9% | ¥962M ($6.2M) |
| 2025-09-29 | BUY | Market Buy | 光通信株式会社 Hikari Tsushin K.K. | passive | 563.6K | ¥2,028 | +10.9% | ¥1.1B ($7.4M) |
| 2025-04-30 | BUY | Market Buy | 株式会社エスアイエル SIL Co., Ltd. | passive | 120.2K | ¥2,050 | +9.8% | ¥246M ($1.6M) |
| 2025-04-30 | BUY | Market Buy | 株式会社UH Partners 3 UH Partners 3 Co., Ltd. | passive | 460.4K | ¥2,050 | +9.8% | ¥155M ($999K) |
| 2025-04-30 | BUY | Market Buy | 株式会社UH Partners 2 UH Partners 2, Inc. | passive | 474.4K | ¥2,050 | +9.8% | ¥973M ($6.3M) |
| 2025-04-30 | BUY | Market Buy | 光通信株式会社 Hikari Tsushin K.K. | passive | 563.6K | ¥2,050 | +9.8% | ¥1.2B ($7.5M) |
| 2024-03-04 | BUY | Market Buy | 株式会社エスアイエル SIL Co., Ltd. | passive | 120.2K | ¥1,793 | +25.5% | ¥216M ($1.4M) |
| 2024-03-04 | BUY | Market Buy | 株式会社UH Partners 3 UH Partners 3 Co., Ltd. | passive | 384.8K | ¥1,793 | +25.5% | ¥135M ($873K) |
| 2024-03-04 | BUY | Market Buy | 株式会社UH Partners 2 UH Partners 2, Inc. | passive | 474.4K | ¥1,793 | +25.5% | ¥851M ($5.5M) |
| 2024-03-04 | BUY | Market Buy | 光通信株式会社 Hikari Tsushin K.K. | passive | 563.6K | ¥1,793 | +25.5% | ¥1.0B ($6.5M) |
| 2024-01-11 | SELL | unknown | エフエムアール エルエルシー(FMR LLC) FMR LLC | other | 95.3K | ¥1,791 | -25.6% | ¥579M ($3.7M) |
| 2023-12-27 | BUY | Market Buy | 株式会社エスアイエル SIL Co., Ltd. | passive | 120.2K | ¥1,760 | +27.8% | ¥212M ($1.4M) |
| 2023-12-27 | BUY | Market Buy | 株式会社UH Partners 3 UH Partners 3 Co., Ltd. | passive | 309.3K | ¥1,760 | +27.8% | ¥544M ($3.5M) |
| 2023-12-27 | BUY | Market Buy | 株式会社UH Partners 2 UH Partners 2, Inc. | passive | 474.4K | ¥1,760 | +27.8% | ¥39M ($249K) |
| 2023-12-27 | BUY | Market Buy | 光通信株式会社 Hikari Tsushin K.K. | passive | 563.6K | ¥1,760 | +27.8% | ¥992M ($6.4M) |
| 2023-11-22 | BUY | Market Buy | 光通信株式会社 Hikari Tsushin K.K. | passive | 563.6K | ¥1,759 | +27.9% | ¥991M ($6.4M) |
| 2023-11-22 | BUY | Market Buy | 株式会社エスアイエル SIL Co., Ltd. | passive | 120.2K | ¥1,759 | +27.9% | ¥211M ($1.4M) |
| 2023-11-22 | BUY | Market Buy | 株式会社UH Partners 2 UH Partners 2, Inc. | passive | 452.6K | ¥1,759 | +27.9% | ¥610M ($3.9M) |
| 2023-11-22 | SELL | unknown | エフエムアール エルエルシー(FMR LLC) FMR LLC | other | 418.6K | ¥1,759 | -27.9% | ¥592M ($3.8M) |
| 2023-09-04 | BUY | Market Buy | 株式会社エスアイエル SIL Co., Ltd. | passive | 120.2K | ¥1,764 | +27.6% | ¥212M ($1.4M) |
| 2023-09-04 | BUY | Market Buy | 株式会社UH Partners 2 UH Partners 2, Inc. | passive | 105.4K | ¥1,764 | +27.6% | ¥135M ($868K) |
| 2023-09-04 | BUY | Market Buy | 光通信株式会社 Hikari Tsushin K.K. | passive | 563.6K | ¥1,764 | +27.6% | ¥994M ($6.4M) |
| 2022-11-22 | SELL | unknown | 野村信託銀行株式会社 Nomura Trust and Banking Co., Ltd. | unknown | 0 | ¥1,645 | -36.8% | ¥609M ($3.9M) |
| 2022-11-22 | SELL | unknown | 野村證券株式会社 Nomura Securities Co.,Ltd. | other | 308 | ¥1,645 | -36.8% | ¥11.1B ($71.3M) |
| 2022-11-09 | BUY | Market Buy | 大同特殊鋼株式会社 Daido Steel Co., Ltd. | strategic | 2.5M | ¥1,550 | +45.2% | ¥2.8B ($17.9M) |
| 2022-01-18 | BUY | Market Buy | 株式会社エスアイエル SIL Co., Ltd. | passive | 120.2K | ¥1,747 | +28.8% | ¥210M ($1.4M) |
| 2022-01-18 | BUY | Market Buy | 株式会社UH Partners 2 UH Partners 2, Inc. | passive | 29.7K | ¥1,747 | +28.8% | ¥37M ($238K) |
| 2022-01-18 | SELL | Market Buy | 光通信株式会社 Hikari Tsushin K.K. | passive | 563.6K | ¥1,747 | -28.8% | ¥211M ($1.4M) |
| 2021-11-29 | BUY | Market Buy | 株式会社UH Partners 2 UH Partners 2, Inc. | passive | 8.3K | ¥1,713 | +31.4% | ¥14M ($92K) |
| 2021-11-29 | BUY | Market Buy | 光通信株式会社 Hikari Tsushin K.K. | passive | 683.8K | ¥1,713 | +31.4% | ¥1.2B ($7.6M) |
| 2021-03-31 | BUY | Market Buy | 株式会社UH Partners 2 UH Partners 2, Inc. | passive | 8.3K | ¥1,528.312 | +47.2% | ¥13M ($82K) |
| 2021-03-31 | BUY | Market Buy | 光通信株式会社 Hikari Tsushin K.K. | passive | 683.8K | ¥1,528.312 | +47.2% | ¥3M ($22K) |