Moleculin Biotech, Inc. (MBRX) ownership: Top institutional holder: SABBY MANAGEMENT, LLC ($171798.00). Insider activity: Net Seller (3 buys, 17 sells). SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| SABBY MANAGEMENT, LLC | 75021.00 | $171798.00 | 2026-03-31 |
| CITADEL ADVISORS LLC | 33085.00 | $109511.00 | 2025-12-31 |
| JANE STREET GROUP, LLC | 22550.00 | $74640.00 | 2025-12-31 |
| GEODE CAPITAL MANAGEMENT, LLC | 32329.00 | $74033.00 | 2026-03-31 |
| VANGUARD GROUP INC | 15544.00 | $51450.00 | 2025-12-31 |
| BlackRock Fund Advisors | 17868.00 | $41000.00 | 2016-12-31 |
| VANGUARD CAPITAL MANAGEMENT LLC | 13869.00 | $31760.00 | 2026-03-31 |
| HRT FINANCIAL LP | 13739.00 | $31000.00 | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Buy | null | 2026-08-03 | |
| Sell | null | 2026-08-03 | |
| Buy | null | 2026-08-03 | |
| Buy | null | 2026-08-03 | |
| Sell | null | 2026-08-03 | |
| Sell | null | 2026-08-03 | |
| Sell | null | 2026-06-20 | |
| Sell | null | 2026-06-20 |
Back to MBRX overview · MBRX earnings · All congressional trades
Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.