Delta-Fly Pharma,Inc. 4598Short Interest
Estimated short interest in Delta-Fly Pharma,Inc. (4598) is 12.53% of shares outstanding as of 2026-10-01. Institutions holding 0.5% or more: Arrowstreet International Equity - EAFE Alpha Extension Fund, Arrowstreet (Canada) Global All-Country Alpha Extension Fund I, Arrowstreet Capital, Limited Partnership and 2 others.
Estimated short interest
12.53%
▼0.09%
Estimated position (shares)
1,315,484
As of 2026-10-01
Short sellers
25 firms
3647 reports
Short Interest Trend Last 5 years, 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.
- Arrowstreet International Equity - EAFE Alpha Extension Fund
- Arrowstreet (Canada) Global All-Country Alpha Extension Fund I
- Arrowstreet Capital, Limited Partnership
- BNP Paribas Financial Markets SNC formerly known as BNP Paribas Arbitrage SNC
- Morgan Stanley MUFG Securities Co., Ltd.
- Others
12.53%
Estimated short interest, 2026-10-01
Others7.25%
Morgan Stanley MUFG Securities Co., Ltd.0.55%
BNP Paribas Financial Markets SNC formerly known as BNP Paribas Arbitrage SNC0.56%
Arrowstreet Capital, Limited Partnership0.99%
Arrowstreet (Canada) Global All-Country Alpha Extension Fund I1.39%
Arrowstreet International Equity - EAFE Alpha Extension Fund1.79%
Current Positions by Short Seller Latest report of each holder
| Last report | Short seller | Position (shares) | Ratio | Change | Status |
|---|---|---|---|---|---|
| 2023-12-14 | Arrowstreet International Equity - EAFE Alpha Extension Fund | Position 147,500 shares | Ratio 1.79% | ▲0.14% | Holding |
| 2023-12-06 | Arrowstreet (Canada) Global All-Country Alpha Extension Fund I | Position 114,900 shares | Ratio 1.39% | ▼0.31% | Holding |
| 2026-09-09 | Arrowstreet Capital, Limited Partnership | Position 180,700 shares | Ratio 0.93% | ▼0.18% | Holding |
| 2024-01-19 | BNP Paribas Financial Markets SNC formerly known as BNP Paribas Arbitrage SNC | Position 46,300 shares | Ratio 0.56% | ▲0.15% | Holding |
| 2026-10-01 | Morgan Stanley MUFG Securities Co., Ltd. | Position 82,500 shares | Ratio 0.55% | ▼0.09% | Holding |
| 2022-06-24 | Credit Suisse AG | Position 26,700 shares | Ratio 0.49% | ▼0.01% | Below 0.5% |
| 2025-04-21 | Citigroup Global Markets Limited | Position 48,500 shares | Ratio 0.49% | ▼0.09% | Below 0.5% |
| 2026-09-08 | Jane Street Asia Trading Limited | Position 79,924 shares | Ratio 0.49% | ▼0.01% | Below 0.5% |
| 2020-07-07 | Bogle Offshore Opportunity Fund II SRI, Ltd. | Position 21,786 shares | Ratio 0.48% | ▼0.03% | Below 0.5% |
| 2024-12-20 | Integrated Core Strategies (Asia) Pte. Ltd. | Position 47,100 shares | Ratio 0.48% | ▼0.09% | Below 0.5% |
| 2025-10-31 | BNP Paribas Financial Markets SNC | Position 56,900 shares | Ratio 0.48% | ▼0.03% | Below 0.5% |
| 2020-11-24 | Deutsche Bank Aktiengesellschaft, London | Position 21,600 shares | Ratio 0.47% | ▼0.15% | Below 0.5% |
| 2020-07-07 | Bogle Opportunity Fund II, LP | Position 21,382 shares | Ratio 0.47% | ▼0.03% | Below 0.5% |
| 2022-03-10 | Arrowstreet EAFE Alpha Extension Trust Fund | Position 25,900 shares | Ratio 0.47% | ▼0.16% | Below 0.5% |
| 2026-09-30 | GOLDMAN SACHS INTERNATIONAL | Position 88,341 shares | Ratio 0.45% | ▼0.06% | Below 0.5% |
| 2023-01-13 | AIRAIN Ltd. | Position 28,300 shares | Ratio 0.45% | ▼0.05% | Below 0.5% |
| 2026-09-09 | JPM Securities Japan Co Ltd. | Position 79,400 shares | Ratio 0.41% | ▼0.12% | Below 0.5% |
| 2026-09-09 | Nomura International plc | Position 64,700 shares | Ratio 0.39% | ▼0.18% | Below 0.5% |
| 2025-12-11 | JANE STREET GLOBAL TRADING, LLC | Position 47,175 shares | Ratio 0.38% | ▼0.13% | Below 0.5% |
| 2024-12-17 | MERRILL LYNCH INTERNATIONAL | Position 33,600 shares | Ratio 0.37% | ▼0.25% | Below 0.5% |
| 2023-05-09 | Jump Trading Pacific Pte Ltd | Position 14,800 shares | Ratio 0.23% | ▼0.35% | Below 0.5% |
| 2023-11-13 | BNP Paribas Arbitrage SNC | Position 9,600 shares | Ratio 0.12% | ▼0.47% | Below 0.5% |
| 2025-05-02 | Macquarie Bank Limited | Position 8,600 shares | Ratio 0.08% | ▼3.25% | Below 0.5% |
| 2026-09-09 | Barclays Capital Securities Ltd | Position 5,576 shares | Ratio 0.03% | ▼0.85% | Below 0.5% |
| 2026-09-25 | UBS AG | Position 3,900 shares | Ratio 0.02% | ▼0.65% | Below 0.5% |
| 2025-05-09 | XTX Markets Pte Ltd | Position 0 shares | Ratio 0.00% | ▼1.53% | Closed |
| 2024-08-15 | Morgan Stanley & Co. International plc | Position 0 shares | Ratio 0.00% | ▼0.52% | Closed |
| 2026-01-22 | JANE STREET SINGAPORE PTE. LIMITED | Position 0 shares | Ratio 0.00% | ▼0.66% | Closed |
Disclosure History 3647 in total
| Trade date | Short seller | Position (shares) | Ratio | Change | Note |
|---|---|---|---|---|---|
| 2026-10-01 | Morgan Stanley MUFG Securities Co., Ltd. | Position 82,500 shares | Ratio 0.55% | ▼0.09% | — |
| 2026-09-30 | GOLDMAN SACHS INTERNATIONAL | Position 88,341 shares | Ratio 0.45% | ▼0.06% | Below 0.5% |
| 2026-09-29 | Morgan Stanley MUFG Securities Co., Ltd. | Position 95,100 shares | Ratio 0.64% | ▼0.10% | — |
| 2026-09-28 | GOLDMAN SACHS INTERNATIONAL | Position 99,341 shares | Ratio 0.51% | ▼0.11% | — |
| 2026-09-28 | Morgan Stanley MUFG Securities Co., Ltd. | Position 109,700 shares | Ratio 0.74% | ▼0.22% | — |
| 2026-09-25 | UBS AG | Position 3,900 shares | Ratio 0.02% | ▼0.65% | Below 0.5% |
| 2026-09-25 | GOLDMAN SACHS INTERNATIONAL | Position 120,341 shares | Ratio 0.62% | ▲0.62% | — |
| 2026-09-24 | UBS AG | Position 130,400 shares | Ratio 0.67% | ▼0.07% | — |
| 2026-09-18 | Morgan Stanley MUFG Securities Co., Ltd. | Position 137,900 shares | Ratio 0.96% | ▼0.22% | — |
| 2026-09-17 | Morgan Stanley MUFG Securities Co., Ltd. | Position 168,900 shares | Ratio 1.18% | ▼0.11% | — |
| 2026-09-17 | UBS AG | Position 144,000 shares | Ratio 0.74% | ▲0.56% | — |
| 2026-09-17 | GOLDMAN SACHS INTERNATIONAL | Position 0 shares | Ratio 0.00% | ▼0.81% | Closed |
| 2026-09-16 | Morgan Stanley MUFG Securities Co., Ltd. | Position 185,700 shares | Ratio 1.29% | ▼0.35% | — |
| 2026-09-15 | GOLDMAN SACHS INTERNATIONAL | Position 156,241 shares | Ratio 0.81% | ▲0.08% | — |
| 2026-09-15 | Morgan Stanley MUFG Securities Co., Ltd. | Position 234,700 shares | Ratio 1.64% | ▼0.35% | — |
| 2026-09-14 | GOLDMAN SACHS INTERNATIONAL | Position 142,041 shares | Ratio 0.73% | ▼0.43% | — |
| 2026-09-14 | Morgan Stanley MUFG Securities Co., Ltd. | Position 284,900 shares | Ratio 1.99% | ▼0.19% | — |
| 2026-09-11 | GOLDMAN SACHS INTERNATIONAL | Position 224,741 shares | Ratio 1.16% | ▼0.84% | — |
| 2026-09-11 | Morgan Stanley MUFG Securities Co., Ltd. | Position 312,100 shares | Ratio 2.18% | ▼0.47% | — |
| 2026-09-10 | GOLDMAN SACHS INTERNATIONAL | Position 386,441 shares | Ratio 2.00% | ▼0.10% | — |
| 2026-09-10 | Morgan Stanley MUFG Securities Co., Ltd. | Position 380,400 shares | Ratio 2.65% | ▲0.44% | — |
| 2026-09-09 | Nomura International plc | Position 64,700 shares | Ratio 0.39% | ▼0.18% | Below 0.5% |
| 2026-09-09 | JPM Securities Japan Co Ltd. | Position 79,400 shares | Ratio 0.41% | ▼0.12% | Below 0.5% |
| 2026-09-09 | GOLDMAN SACHS INTERNATIONAL | Position 341,641 shares | Ratio 2.10% | ▲0.47% | — |
| 2026-09-09 | Barclays Capital Securities Ltd | Position 5,576 shares | Ratio 0.03% | ▼0.85% | Below 0.5% |
| 2026-09-09 | Arrowstreet Capital, Limited Partnership | Position 190,500 shares | Ratio 0.99% | ▼0.18% | — |
| 2026-09-09 | Arrowstreet Capital, Limited Partnership | Position 180,700 shares | Ratio 0.93% | ▼0.18% | — |
| 2026-09-08 | Nomura International plc | Position 93,100 shares | Ratio 0.57% | ▼0.16% | — |
| 2026-09-08 | Jane Street Asia Trading Limited | Position 79,924 shares | Ratio 0.49% | ▼0.01% | Below 0.5% |
| 2026-09-08 | GOLDMAN SACHS INTERNATIONAL | Position 265,241 shares | Ratio 1.63% | ▲0.28% | — |
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