Heartseed Inc. 219AShort Interest
Estimated short interest in Heartseed Inc. (219A) is 8.44% of shares outstanding as of 2026-10-01. Institutions holding 0.5% or more: Morgan Stanley MUFG Securities Co., Ltd., Barclays Capital Securities Ltd, SMBC Nikko Securities Inc.
Estimated short interest
8.4400%
▲0.1600%
Estimated position (shares)
1,940,593
As of 2026-10-01
Short sellers
14 firms
900 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.
- Morgan Stanley MUFG Securities Co., Ltd.
- Barclays Capital Securities Ltd
- SMBC Nikko Securities Inc.
- Citigroup Global Markets Limited
- Daiwa Securities Co. Ltd.
- Others
8.4400%
Estimated short interest, 2026-10-01
Others3.92%
Daiwa Securities Co. Ltd.0.49%
Citigroup Global Markets Limited0.49%
SMBC Nikko Securities Inc.0.71%
Barclays Capital Securities Ltd1.32%
Morgan Stanley MUFG Securities Co., Ltd.1.51%
Current Positions by Short Seller Latest report of each holder
| Last report | Short seller | Position (shares) | Ratio | Change | Status |
|---|---|---|---|---|---|
| 2026-10-01 | Morgan Stanley MUFG Securities Co., Ltd. | Position 346,000 shares | Ratio 1.5100% | ▲0.0500% | Holding |
| 2026-09-24 | Barclays Capital Securities Ltd | Position 302,426 shares | Ratio 1.3200% | ▲0.0600% | Holding |
| 2026-10-01 | SMBC Nikko Securities Inc. | Position 163,800 shares | Ratio 0.7100% | ▲0.1099% | Holding |
| 2024-10-24 | PDT Partners, LLC | Position 111,000 shares | Ratio 0.4900% | ▼0.0201% | Below 0.5% |
| 2025-12-22 | Citigroup Global Markets Limited | Position 114,000 shares | Ratio 0.4900% | ▼0.0101% | Below 0.5% |
| 2026-09-17 | Daiwa Securities Co. Ltd. | Position 112,292 shares | Ratio 0.4900% | ▼0.0900% | Below 0.5% |
| 2026-09-29 | Barclays Bank PLC | Position 112,355 shares | Ratio 0.4900% | ▼0.0301% | Below 0.5% |
| 2026-03-19 | Individual | Position 112,000 shares | Ratio 0.4800% | ▼0.0301% | Below 0.5% |
| 2026-08-31 | JPM Securities Japan Co Ltd. | Position 104,200 shares | Ratio 0.4500% | ▼0.1101% | Below 0.5% |
| 2025-01-30 | Qube Research & Technologies Limited | Position 98,600 shares | Ratio 0.4400% | ▼0.1900% | Below 0.5% |
| 2025-07-10 | UBS AG | Position 98,900 shares | Ratio 0.4300% | ▼0.0801% | Below 0.5% |
| 2025-11-17 | GOLDMAN SACHS INTERNATIONAL | Position 92,573 shares | Ratio 0.4000% | ▼0.1300% | Below 0.5% |
| 2026-09-17 | Nomura International plc | Position 86,547 shares | Ratio 0.3700% | ▼0.1701% | Below 0.5% |
| 2025-12-15 | MERRILL LYNCH INTERNATIONAL | Position 85,900 shares | Ratio 0.3700% | ▼0.1501% | Below 0.5% |
Disclosure History 900 in total
| Trade date | Short seller | Position (shares) | Ratio | Change | Note |
|---|---|---|---|---|---|
| 2026-10-01 | Morgan Stanley MUFG Securities Co., Ltd. | Position 346,000 shares | Ratio 1.5100% | ▲0.0500% | — |
| 2026-10-01 | SMBC Nikko Securities Inc. | Position 163,800 shares | Ratio 0.7100% | ▲0.1099% | — |
| 2026-09-30 | Morgan Stanley MUFG Securities Co., Ltd. | Position 335,100 shares | Ratio 1.4600% | ▲0.0700% | — |
| 2026-09-30 | SMBC Nikko Securities Inc. | Position 137,800 shares | Ratio 0.6000% | ▲0.1300% | — |
| 2026-09-29 | Morgan Stanley MUFG Securities Co., Ltd. | Position 318,800 shares | Ratio 1.3900% | ▲0.2699% | — |
| 2026-09-29 | Barclays Bank PLC | Position 112,355 shares | Ratio 0.4900% | ▼0.0301% | Below 0.5% |
| 2026-09-24 | Barclays Capital Securities Ltd | Position 302,426 shares | Ratio 1.3200% | ▲0.0600% | — |
| 2026-09-18 | Morgan Stanley MUFG Securities Co., Ltd. | Position 258,300 shares | Ratio 1.1200% | ▼0.1100% | — |
| 2026-09-18 | Barclays Capital Securities Ltd | Position 290,600 shares | Ratio 1.2600% | ▼0.2000% | — |
| 2026-09-17 | Morgan Stanley MUFG Securities Co., Ltd. | Position 283,200 shares | Ratio 1.2300% | ▼0.1001% | — |
| 2026-09-17 | Nomura International plc | Position 86,547 shares | Ratio 0.3700% | ▼0.1701% | Below 0.5% |
| 2026-09-17 | Daiwa Securities Co. Ltd. | Position 112,292 shares | Ratio 0.4900% | ▼0.0900% | Below 0.5% |
| 2026-09-16 | Nomura International plc | Position 124,347 shares | Ratio 0.5400% | ▲0.0500% | — |
| 2026-09-16 | Morgan Stanley MUFG Securities Co., Ltd. | Position 305,000 shares | Ratio 1.3300% | ▲0.1000% | — |
| 2026-09-15 | Morgan Stanley MUFG Securities Co., Ltd. | Position 283,700 shares | Ratio 1.2300% | ▲0.0400% | — |
| 2026-09-14 | Nomura International plc | Position 114,847 shares | Ratio 0.5000% | ▼0.1000% | — |
| 2026-09-14 | Morgan Stanley MUFG Securities Co., Ltd. | Position 274,400 shares | Ratio 1.1900% | ▼0.0501% | — |
| 2026-09-11 | Nomura International plc | Position 137,747 shares | Ratio 0.6000% | ▲0.0999% | — |
| 2026-09-11 | Barclays Capital Securities Ltd | Position 334,800 shares | Ratio 1.4600% | ▲0.0800% | — |
| 2026-09-10 | Nomura International plc | Position 115,947 shares | Ratio 0.5000% | ▲0.0800% | — |
| 2026-09-09 | Barclays Capital Securities Ltd | Position 316,400 shares | Ratio 1.3800% | ▼0.0301% | — |
| 2026-09-08 | Barclays Capital Securities Ltd | Position 323,200 shares | Ratio 1.4100% | ▲0.1299% | — |
| 2026-09-08 | Morgan Stanley MUFG Securities Co., Ltd. | Position 285,700 shares | Ratio 1.2400% | ▲0.0500% | — |
| 2026-09-07 | Nomura International plc | Position 105,047 shares | Ratio 0.4500% | ▼0.1101% | Below 0.5% |
| 2026-09-07 | Barclays Capital Securities Ltd | Position 293,500 shares | Ratio 1.2800% | ▼0.0801% | — |
| 2026-09-07 | Morgan Stanley MUFG Securities Co., Ltd. | Position 273,400 shares | Ratio 1.1900% | ▼0.0101% | — |
| 2026-09-03 | Nomura International plc | Position 129,047 shares | Ratio 0.5600% | ▼0.1100% | — |
| 2026-09-03 | Barclays Capital Securities Ltd | Position 311,600 shares | Ratio 1.3600% | ▼0.1500% | — |
| 2026-09-02 | Nomura International plc | Position 154,947 shares | Ratio 0.6700% | ▼0.0800% | — |
| 2026-09-02 | Barclays Capital Securities Ltd | Position 346,200 shares | Ratio 1.5100% | ▼0.1200% | — |
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