Quants Research Institute Holdings
9552.TTSE PRIMEServices
Filed as M&A Research Institute Inc. (2022-08–2023-02), M&A Research Institute Holdings Inc. (2023-05–2026-01)
Major holders (5%+) · 1
| Holder | Stake |
|---|---|
| SHUNSAKU SAGAMI | 57.91% |
Each holder's own ratio from its most recent large-shareholding report.
Former and minor holders (below 5%) · 8
| Arcus Investment Limited Director/Executive Director Edward Cartwright | 3.99% |
| RHEOS CAPITAL WORKS Inc. | 3.80% |
| Asset Management One Co., Ltd. | 3.55% |
| Morgan Stanley & Co. LLC | 1.38% |
| Morgan Stanley & Co. International plc | 1.28% |
| Morgan Stanley MUFG Securities Co., Ltd. | 0.73% |
| Mizuho Securities Co., Ltd. | 0.03% |
| Asset Management One International Ltd. | 0.01% |
Ownership history · 39
| Holder | Ratio | Change |
|---|---|---|
| Arcus Investment Limited Director/Executive Director Edward Cartwright2026-06-09 | 3.99% | -1.02pp |
| SHUNSAKU SAGAMI2026-04-15 · amended | 57.91% | no change |
| SHUNSAKU SAGAMI2026-02-27 | 57.91% | +5.09pp |
| Arcus Investment Limited Director/Executive Director Edward Cartwright2026-01-16 | 5.01% | new |
| Morgan Stanley MUFG Securities Co., Ltd.2025-12-19 · amended | 0.73% | -2.05pp |
| Morgan Stanley & Co. International plc2025-12-19 · amended | 1.28% | -0.30pp |
| Morgan Stanley & Co. LLC2025-12-19 · amended | 1.38% | +0.29pp |
| Morgan Stanley & Co. LLC2025-12-19 · amended | 1.09% | -0.04pp |
| Morgan Stanley & Co. International plc2025-12-19 · amended | 1.58% | -0.60pp |
| Morgan Stanley MUFG Securities Co., Ltd.2025-12-19 · amended | 2.78% | +0.09pp |
| Morgan Stanley & Co. LLC2025-12-19 · amended | 1.13% | -0.07pp |
| Morgan Stanley & Co. International plc2025-12-19 · amended | 2.18% | -1.01pp |
| Morgan Stanley MUFG Securities Co., Ltd.2025-12-19 · amended | 2.69% | +1.33pp |
| Morgan Stanley & Co. LLC2025-12-19 · amended | 1.20% | +0.05pp |
| Morgan Stanley MUFG Securities Co., Ltd.2025-12-19 · amended | 1.36% | no change |
| Morgan Stanley & Co. International plc2025-12-19 · amended | 3.19% | +0.53pp |
| Morgan Stanley & Co. LLC2025-12-19 · amended | 1.15% | +0.11pp |
| Morgan Stanley MUFG Securities Co., Ltd.2025-12-19 · amended | 1.36% | +0.16pp |
| Morgan Stanley & Co. International plc2025-12-19 · amended | 2.66% | +0.45pp |
| Morgan Stanley & Co. LLC2025-09-19 · amended | 1.04% | +0.05pp |
Each holder in 5% reports, joint holders included. Purpose is classified from the filed text.