| SC 13G/A | 2024-02-13 | HARVARD BIOSCIENCE INC | Harvard Apparatus Regenerative Technology, Inc. | 697,112 | 5.0% | EDGAR |
| SC 13G/A | 2023-02-16 | Zhang An | Biostage, Inc. | 818,919 | 7.0% | EDGAR |
| SC 13G | 2022-06-21 | HARVARD BIOSCIENCE INC | Biostage, Inc. | 708,516 | 5.8% | EDGAR |
| SC 13G | 2021-09-23 | Zhang An | Biostage, Inc. | 650,000 | 6.1% | EDGAR |
| SC 13D/A | 2021-09-10 | DST Capital LLC | Biostage, Inc. | 3,650,000 | 34.2% | EDGAR |
| SC 13D/A | 2021-06-23 | DST Capital LLC | Biostage, Inc. | 3,150,000 | 32.9% | EDGAR |
| SC 13D/A | 2020-09-16 | DST Capital LLC | Biostage, Inc. | 3,000,000 | 33.1% | EDGAR |
| SC 13D/A | 2020-04-23 | DST Capital LLC | Biostage, Inc. | 3,000,000 | 37.8% | EDGAR |
| SC 13D/A | 2019-12-10 | DST Capital LLC | Biostage, Inc. | 3,000,000 | 42.1% | EDGAR |
| SC 13D/A | 2019-09-05 | DST Capital LLC | Biostage, Inc. | 3,000,000 | 44.8% | EDGAR |
| SC 13D/A | 2019-05-13 | DST Capital LLC | Biostage, Inc. | 3,000,000 | 50.0% | EDGAR |
| SC 13D/A | 2019-02-20 | DST Capital LLC | Biostage, Inc. | 2,500,000 | 50.0% | EDGAR |
| SC 13D/A | 2018-07-06 | DST Capital LLC | Biostage, Inc. | 2,000,000 | 50.0% | EDGAR |
| SC 13D | 2018-07-06 | Du Xiaoyu | Biostage, Inc. | 750,000 | 13.2% | EDGAR |
| SC 13D | 2018-07-06 | Zhou Heping | Biostage, Inc. | 500,000 | 8.8% | EDGAR |
| SC 13D | 2018-02-23 | Liu Jinhui | Biostage, Inc. | 368,318 | 12.9% | EDGAR |
| SC 13G/A | 2018-01-16 | Empery Asset Management, LP | Biostage, Inc. | 123,641 | 0.3% | EDGAR |
| SC 13D | 2018-01-10 | DST Capital LLC | Biostage, Inc. | 500,000 | 50.0% | EDGAR |
| SC 13G | 2017-02-21 | INTRACOASTAL CAPITAL, LLC | Biostage, Inc. | 1,472,813 | 3.8% | EDGAR |
| SC 13G | 2017-02-17 | Empery Asset Management, LP | Biostage, Inc. | 2,500,000 | 6.7% | EDGAR |