Real time Form 13D and 13G transaction reports:
- Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
- Due to inconsistent filing format, it is highly recommended that you read the orignal filing form.
- Shares have beem adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
| Reported DateTime | Transaction Date | Type | Company Symbol | Filed By Symbol | Shares Owned % Owned | Shares Vs. Prev Report | View |
| 2026-05-15 12:36 pm Sale | 2026-03-31 | 13G | DYNE THERAPEUTICS INC DYN | Janus Henderson Group plc JHG | 13,647,376 8.300% | -240,346 (-1.73%) | Filing History |
| 2026-05-15 10:06 am Purchase | 2026-03-31 | 13G | DYNE THERAPEUTICS INC DYN | T. Rowe Price Investment Management, Inc. | 30,785,801 18.700% | 4,207,364 (+15.83%) | Filing History |
| 2026-05-06 11:13 am Purchase | 2026-03-31 | 13G | DYNE THERAPEUTICS INC DYN | FMR LLC | 8,908,980 5.400% | 3,713,686 (+71.48%) | Filing History |
| 2026-03-26 6:04 pm Sale | 2026-03-13 | 13G | DYNE THERAPEUTICS INC DYN | VANGUARD GROUP INC | 0 0.000% | -6,864,137 (Position Closed) | Filing History |
| 2026-03-06 12:57 pm Purchase | 2026-02-28 | 13G | DYNE THERAPEUTICS INC DYN | T. Rowe Price Investment Management, Inc. | 26,578,437 16.200% | 9,038,348 (+51.53%) | Filing History |
| 2026-02-17 4:34 pm Sale | 2025-12-31 | 13G | DYNE THERAPEUTICS INC DYN | Janus Henderson Group plc JHG | 13,887,722 8.500% | -857,783 (-5.82%) | Filing History |
| 2026-01-08 12:15 pm Purchase | 2025-12-31 | 13G | DYNE THERAPEUTICS INC DYN | T. Rowe Price Investment Management, Inc. | 17,540,089 10.700% | 17,540,089 (New Position) | Filing History |
| 2025-11-14 4:14 pm Sale | 2025-09-30 | 13G | DYNE THERAPEUTICS INC DYN | RA Capital Management, L.P. | 0 0.000% | -9,714,392 (Position Closed) | Filing History |
| 2025-11-14 11:58 am Purchase | 2025-09-30 | 13G | DYNE THERAPEUTICS INC DYN | Janus Henderson Group plc JHG | 14,745,505 10.400% | 350,506 (+2.43%) | Filing History |
| 2025-11-13 4:23 pm Sale | 2025-09-30 | 13G | DYNE THERAPEUTICS INC DYN | Atlas Venture Fund XI, L.P. | 5,713,470 4.000% | -587 (-0.01%) | Filing History |
| 2025-08-07 10:34 am Purchase | 2025-07-31 | 13G | DYNE THERAPEUTICS INC DYN | Janus Henderson Group plc JHG | 14,394,999 10.100% | 4,041,124 (+39.03%) | Filing History |
| 2025-05-15 4:56 pm Purchase | 2025-03-31 | 13G | DYNE THERAPEUTICS INC DYN | RA Capital Management, L.P. | 9,714,392 8.500% | 3,333,248 (+52.24%) | Filing History |
| 2025-05-15 3:54 pm Sale | 2025-03-31 | 13G | DYNE THERAPEUTICS INC DYN | Point72 Asset Management, L.P. | 1,669,342 1.500% | -3,527,255 (-67.88%) | Filing History |
| 2025-05-15 08:46 am Sale | 2025-03-31 | 13G | DYNE THERAPEUTICS INC DYN | Forbion Capital Fund IV Cooperatief U.A. | 5,400,545 4.800% | -394,819 (-6.81%) | Filing History |
| 2025-05-15 08:17 am Sale | 2025-03-31 | 13G | DYNE THERAPEUTICS INC DYN | RTW Investments, LP | 1,690,567 1.500% | -3,528,074 (-67.61%) | Filing History |
| 2025-05-14 12:16 pm Purchase | 2025-03-31 | 13G | DYNE THERAPEUTICS INC DYN | Janus Henderson Group plc JHG | 10,353,875 9.200% | 2,974,566 (+40.31%) | Filing History |
| 2025-05-12 10:32 am Sale | 2025-03-31 | 13G | DYNE THERAPEUTICS INC DYN | FMR LLC | 5,195,294 4.600% | -2,801,637 (-35.03%) | Filing History |
| 2025-04-17 09:35 am Sale | 2025-03-31 | 13G | DYNE THERAPEUTICS INC DYN | BlackRock Inc. BLK | 6,577,879 5.800% | -1,216,338 (-15.61%) | Filing History |
| 2025-02-14 12:22 pm Purchase | 2024-12-31 | 13G | DYNE THERAPEUTICS INC DYN | Janus Henderson Group plc JHG | 7,379,309 7.300% | 566,146 (+8.31%) | Filing History |
| 2025-02-14 09:00 am Sale | 2024-12-31 | 13G | DYNE THERAPEUTICS INC DYN | RTW Investments, LP | 5,218,641 5.100% | -1,600,000 (-23.47%) | Filing History |