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)
In English · 8
Fri, Aug 14 · JST1 filing
15:30MATERIALQuants Research Institute Holdings · Change in parent company or specified subsidiaryTue, Jun 9 · JST1 filing
13:565% STAKEQuants Research Institute Holdings · Arcus Investment Limited Director/Executive Director Edward Cartwright · 5.01% → 3.99%−1.02ppWed, Apr 15 · JST1 filing
11:175% STAKEQuants Research Institute Holdings · SHUNSAKU SAGAMI · 52.82% → 57.91%+5.09ppFri, Feb 27 · JST1 filing
16:005% STAKEQuants Research Institute Holdings · SHUNSAKU SAGAMI · 52.82% → 57.91%+5.09ppFri, Jan 16 · JST1 filing
14:065% STAKEQuants Research Institute Holdings · Arcus Investment Limited Director/Executive Director Edward Cartwright · 5.01%new 5.01%Tue, Dec 23 · JST1 filing
15:31MATERIALQuants Research Institute Holdings · Event with a material impact on financial positionThu, Jan 30 · JST1 filing
15:32MATERIALQuants Research Institute Holdings · Change in parent company or specified subsidiaryFri, Dec 20 · JST1 filing
15:30MATERIALQuants Research Institute Holdings · Event with a material impact on financial positionAll EDINET filings · 68
| Filed | Document | Source |
|---|---|---|
| 2026-10-01 | Share buyback report | S100Z5S2 |
| 2026-09-01 | Share buyback report | S100YZYI |
| 2026-08-14 | Material event report | S100YWRI |
| 2026-08-03 | Share buyback report | S100YTSK |
| 2026-07-01 | Share buyback report | S100YO6W |
| 2026-06-09 | Large shareholding report | S100Y9O3 |
| 2026-06-02 | Share buyback report | S100Y7ZT |
| 2026-05-20 | Material event report | S100Y5C0 |
| 2026-05-15 | Half-year report | S100Y47P |
| 2026-05-15 | CEO/CFO certification | S100Y47R |
| 2026-04-15 | Amended large shareholding reportAmends S100XYZ7 | S100XZ1D |
| 2026-04-15 | Large shareholding report | S100XYZ7 |
| 2026-03-19 | Large shareholding reportRelated to S100XBSI | S100XS4S |
| 2026-02-27 | Large shareholding report | S100XMNF |
| 2026-02-19 | Large shareholding reportRelated to S100XBSI | S100XMCO |
| 2026-02-05 | Large shareholding reportRelated to S100XBSI | S100XJIH |
| 2026-01-21 | Large shareholding reportRelated to S100XBSI | S100XGTW |
| 2026-01-16 | Large shareholding report | S100XG96 |
| 2026-01-08 | Large shareholding reportRelated to S100XBSI | S100XEVE |
| 2026-01-05 | Internal control report | S100XE0O |
| 2026-01-05 | Annual report | S100XDNQ |
| 2026-01-05 | CEO/CFO certification | S100XE07 |
| 2025-12-23 | Material event report | S100XCHU |
| 2025-12-23 | Material event report | S100XCHK |
| 2025-12-19 | Large shareholding report | S100XBSI |
| 2025-12-04 | Large shareholding reportRelated to S100WPW1 | S100X8J8 |
| 2025-11-20 | Large shareholding reportRelated to S100WPW1 | S100X5T5 |
| 2025-11-07 | Large shareholding reportRelated to S100WPW1 | S100X00N |
| 2025-10-06 | Large shareholding reportRelated to S100WPW1 | S100WTI3 |
| 2025-10-01 | Share buyback report | S100WSLF |
EDINET catalog 2017-01-01 → 2026-10-03; earlier dates still being collected.