RIBOMIC Inc. 4591Short Interest
Estimated short interest in RIBOMIC Inc. (4591) is 12.63% of shares outstanding as of 2026-09-30. Institutions holding 0.5% or more: Barclays Capital Securities Ltd, Nomura International plc, Arrowstreet Capital, Limited Partnership and 2 others.
Estimated short interest
12.6300%
▼0.4800%
Estimated position (shares)
5,925,182
As of 2026-09-30
Short sellers
21 firms
2706 reports
Short Interest Trend By institution, % of shares outstanding
Estimated short interest, stacking the latest reported position of each short seller. The 5 largest current holders are shown in color and the rest are grouped as "Others". Hover over (or tap) a bar to see the breakdown.
- Barclays Capital Securities Ltd
- Nomura International plc
- Arrowstreet Capital, Limited Partnership
- Segregated Portfolio D
- ARROWSTREET INTERNATIONAL EQUITY EAFE ALPHA EXTENSION FUND L.P.
- Others
12.6300%
Estimated short interest, 2026-09-30
Others5.98%
ARROWSTREET INTERNATIONAL EQUITY EAFE ALPHA EXTENSION FUND L.P.0.76%
Segregated Portfolio D0.89%
Arrowstreet Capital, Limited Partnership1.33%
Nomura International plc1.40%
Barclays Capital Securities Ltd2.27%
Current Positions by Short Seller Latest report of each holder
| Last report | Short seller | Position (shares) | Ratio | Change | Status |
|---|---|---|---|---|---|
| 2026-09-18 | Barclays Capital Securities Ltd | Position 1,286,000 shares | Ratio 2.2700% | ▼0.1100% | Holding |
| 2026-09-30 | Nomura International plc | Position 792,900 shares | Ratio 1.4000% | ▼0.3001% | Holding |
| 2026-09-24 | Arrowstreet Capital, Limited Partnership | Position 755,300 shares | Ratio 1.3300% | ▼0.1300% | Holding |
| 2024-04-03 | Segregated Portfolio D | Position 324,000 shares | Ratio 0.8900% | ▼0.0101% | Holding |
| 2024-07-04 | ARROWSTREET INTERNATIONAL EQUITY EAFE ALPHA EXTENSION FUND L.P. | Position 293,100 shares | Ratio 0.7600% | ▼0.0600% | Holding |
| 2023-04-28 | Integrated Core Strategies (Asia) Pte. Ltd. | Position 177,300 shares | Ratio 0.4900% | ▼0.0401% | Below 0.5% |
| 2026-09-02 | JPM Securities Japan Co Ltd. | Position 278,200 shares | Ratio 0.4900% | ▼0.1100% | Below 0.5% |
| 2021-05-18 | Deutsche Bank Aktiengesellschaft, London | Position 139,200 shares | Ratio 0.4900% | ▼0.1000% | Below 0.5% |
| 2026-03-25 | Morgan Stanley MUFG Securities Co., Ltd. | Position 267,900 shares | Ratio 0.4900% | ▼0.0201% | Below 0.5% |
| 2026-08-12 | Citigroup Global Markets Limited | Position 275,000 shares | Ratio 0.4800% | ▼0.0401% | Below 0.5% |
| 2019-11-13 | Credit Suisse Securities (Europe) Limited | Position 76,300 shares | Ratio 0.4700% | ▼0.0301% | Below 0.5% |
| 2022-10-18 | Credit Suisse AG | Position 124,900 shares | Ratio 0.4300% | ▼0.1301% | Below 0.5% |
| 2026-09-10 | MERRILL LYNCH INTERNATIONAL | Position 244,430 shares | Ratio 0.4300% | ▼0.1600% | Below 0.5% |
| 2026-01-19 | UBS AG | Position 220,500 shares | Ratio 0.4000% | ▼0.1401% | Below 0.5% |
| 2022-12-05 | JANE STREET GLOBAL TRADING, LLC | Position 127,300 shares | Ratio 0.3500% | ▼0.3900% | Below 0.5% |
| 2026-06-04 | Nomura Securities Co., Ltd. | Position 186,299 shares | Ratio 0.3300% | ▼0.1800% | Below 0.5% |
| 2019-12-04 | Credit Suisse Securities (Japan) Limited | Position 48,500 shares | Ratio 0.3000% | ▼0.2000% | Below 0.5% |
| 2025-10-29 | GOLDMAN SACHS INTERNATIONAL | Position 149,853 shares | Ratio 0.2900% | ▼0.2401% | Below 0.5% |
| 2021-12-03 | AIRAIN Ltd. | Position 70,400 shares | Ratio 0.2500% | ▼0.2500% | Below 0.5% |
| 2022-01-05 | Arrowstreet ACWI ex US Alpha Extension Trust Fund U | Position 71,900 shares | Ratio 0.2500% | ▼0.3001% | Below 0.5% |
| 2024-07-05 | XTX Markets Pte Ltd | Position 15,900 shares | Ratio 0.0400% | ▼0.5200% | Below 0.5% |
| 2025-01-27 | SMBC Nikko Securities Inc. | Position 0 shares | Ratio 0.0000% | ▼0.7800% | Closed |
| 2025-08-12 | Evo Fund | Position 0 shares | Ratio 0.0000% | ▼4.4801% | Closed |
Disclosure History 2706 in total
| Trade date | Short seller | Position (shares) | Ratio | Change | Note |
|---|---|---|---|---|---|
| 2026-09-30 | Nomura International plc | Position 792,900 shares | Ratio 1.4000% | ▼0.3001% | — |
| 2026-09-24 | Nomura International plc | Position 1,066,900 shares | Ratio 1.8800% | ▲0.0899% | — |
| 2026-09-24 | Arrowstreet Capital, Limited Partnership | Position 755,300 shares | Ratio 1.3300% | ▼0.1300% | — |
| 2026-09-18 | Nomura International plc | Position 1,017,200 shares | Ratio 1.7900% | ▼0.1000% | — |
| 2026-09-18 | Barclays Capital Securities Ltd | Position 1,286,000 shares | Ratio 2.2700% | ▼0.1100% | — |
| 2026-09-14 | Nomura International plc | Position 1,074,000 shares | Ratio 1.8900% | ▼0.1001% | — |
| 2026-09-10 | Nomura International plc | Position 1,126,800 shares | Ratio 1.9900% | ▼0.0800% | — |
| 2026-09-10 | MERRILL LYNCH INTERNATIONAL | Position 244,430 shares | Ratio 0.4300% | ▼0.1600% | Below 0.5% |
| 2026-09-09 | MERRILL LYNCH INTERNATIONAL | Position 337,030 shares | Ratio 0.5900% | ▼0.0301% | — |
| 2026-09-09 | Barclays Capital Securities Ltd | Position 1,348,900 shares | Ratio 2.3800% | ▼0.1300% | — |
| 2026-09-08 | Nomura International plc | Position 1,172,400 shares | Ratio 2.0700% | ▲0.1099% | — |
| 2026-09-08 | MERRILL LYNCH INTERNATIONAL | Position 352,430 shares | Ratio 0.6200% | ▲0.0200% | — |
| 2026-09-08 | Barclays Capital Securities Ltd | Position 1,423,800 shares | Ratio 2.5100% | ▲0.0499% | — |
| 2026-09-07 | Nomura International plc | Position 1,109,200 shares | Ratio 1.9600% | ▼0.1001% | — |
| 2026-09-07 | MERRILL LYNCH INTERNATIONAL | Position 343,030 shares | Ratio 0.6000% | ▲0.0100% | — |
| 2026-09-04 | MERRILL LYNCH INTERNATIONAL | Position 337,730 shares | Ratio 0.5900% | ▲0.0100% | — |
| 2026-09-04 | Barclays Capital Securities Ltd | Position 1,392,400 shares | Ratio 2.4600% | ▲0.0800% | — |
| 2026-09-03 | MERRILL LYNCH INTERNATIONAL | Position 328,830 shares | Ratio 0.5800% | ▼0.0101% | — |
| 2026-09-03 | Barclays Capital Securities Ltd | Position 1,347,800 shares | Ratio 2.3800% | ▲0.1599% | — |
| 2026-09-02 | JPM Securities Japan Co Ltd. | Position 278,200 shares | Ratio 0.4900% | ▼0.1100% | Below 0.5% |
| 2026-09-02 | Barclays Capital Securities Ltd | Position 1,258,500 shares | Ratio 2.2200% | ▲0.0400% | — |
| 2026-09-01 | MERRILL LYNCH INTERNATIONAL | Position 336,830 shares | Ratio 0.5900% | ▲0.0100% | — |
| 2026-09-01 | JPM Securities Japan Co Ltd. | Position 339,600 shares | Ratio 0.6000% | ▲0.0200% | — |
| 2026-09-01 | Barclays Capital Securities Ltd | Position 1,238,000 shares | Ratio 2.1800% | ▲0.2500% | — |
| 2026-08-31 | Nomura International plc | Position 1,168,000 shares | Ratio 2.0600% | ▲0.3800% | — |
| 2026-08-31 | MERRILL LYNCH INTERNATIONAL | Position 333,630 shares | Ratio 0.5800% | ▲0.0100% | — |
| 2026-08-31 | JPM Securities Japan Co Ltd. | Position 328,900 shares | Ratio 0.5800% | ▲0.1399% | — |
| 2026-08-31 | Barclays Capital Securities Ltd | Position 1,092,800 shares | Ratio 1.9300% | ▲0.2099% | — |
| 2026-08-28 | Nomura International plc | Position 954,000 shares | Ratio 1.6800% | ▼0.0501% | — |
| 2026-08-28 | MERRILL LYNCH INTERNATIONAL | Position 326,430 shares | Ratio 0.5700% | ▼0.0201% | — |
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