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 |
| 2026-09-08 09:42 am Purchase | 2026-08-31 | 13G | VICOR CORP VICR | T. Rowe Price Associates, Inc. | 4,384,882 12.800% | 2,016,457![]() (+85.14%) | Filing History |
| 2026-09-03 12:35 pm Sale | 2026-08-31 | 13G | VICOR CORP VICR | JPMORGAN CHASE & CO JPM | 1,394,339 4.000% | -949,593![]() (-40.51%) | Filing History |
| 2026-08-14 10:38 am Purchase | 2026-06-30 | 13G | VICOR CORP VICR | T. Rowe Price Associates, Inc. | 2,368,425 7.000% | 479,979![]() (+25.42%) | Filing History |
| 2026-07-30 11:18 am Sale | 2026-06-30 | 13G | VICOR CORP VICR | BlackRock Inc. BLK | 2,265,870 6.700% | -392,910![]() (-14.78%) | Filing History |
| 2026-07-16 1:13 pm Purchase | 2026-06-30 | 13G | VICOR CORP VICR | JPMORGAN CHASE & CO JPM | 2,343,932 6.900% | 786,943![]() (+50.54%) | Filing History |
| 2026-06-04 1:18 pm Sale | 2026-05-29 | 13G | VICOR CORP VICR | JPMORGAN CHASE & CO JPM | 1,556,989 4.500% | -549,739![]() (-26.09%) | Filing History |
| 2026-05-15 10:07 am Purchase | 2026-03-31 | 13G | VICOR CORP VICR | T. Rowe Price Associates, Inc. | 1,888,446 5.600% | 1,888,446![]() (New Position) | Filing History |
| 2026-05-12 09:25 am Unchanged | 2026-03-31 | 13G | VICOR CORP VICR | JPMORGAN CHASE & CO JPM | 2,106,728 6.200% | 0 (Unchanged) | Filing History |
| 2026-05-04 08:17 am Sale | 2026-03-31 | 13G | VICOR CORP VICR | JPMORGAN CHASE & CO JPM | 2,106,728 6.200% | -1,910,155![]() (-47.55%) | Filing History |
| 2026-04-24 4:11 pm Sale | 2026-03-31 | 13G | VICOR CORP VICR | BlackRock Inc. BLK | 2,658,780 7.900% | -834,480![]() (-23.89%) | Filing History |
| 2026-03-27 1:55 pm Sale | 2026-03-13 | 13G | VICOR CORP VICR | VANGUARD GROUP INC | 0 0.000% | -2,477,438![]() (Position Closed) | Filing History |
| 2026-01-23 11:08 am Sale | 2025-12-31 | 13G | VICOR CORP VICR | JPMORGAN CHASE & CO JPM | 4,016,883 12.100% | -428,695![]() (-9.64%) | Filing History |
| 2025-04-22 12:01 pm Purchase | 2025-03-31 | 13G | VICOR CORP VICR | JPMORGAN CHASE & CO JPM | 4,445,578 13.200% | 745,150![]() (+20.14%) | Filing History |
| 2025-02-11 5:08 pm Purchase | 2024-12-31 | 13G | VICOR CORP VICR | VINCIARELLI PATRIZIO | 21,051,235 47.300% | 4,827![]() (+0.02%) | Filing History |
| 2024-12-04 2:38 pm Purchase | 2024-11-29 | 13G | VICOR CORP VICR | JPMORGAN CHASE & CO JPM | 3,700,428 11.000% | 425,528![]() (+12.99%) | Filing History |
| 2024-10-15 1:39 pm Purchase | 2024-09-30 | 13G | VICOR CORP VICR | JPMORGAN CHASE & CO JPM | 3,274,900 9.800% | 3,274,900![]() (New Position) | Filing History |
| 2024-02-13 5:17 pm Purchase | 2023-12-29 | 13G | VICOR CORP VICR | VANGUARD GROUP INC | 2,477,438 7.570% | 321,124![]() (+14.89%) | Filing History |
| 2024-02-09 6:05 pm Sale | 2024-02-07 | 13G | VICOR CORP VICR | Capital International Investors | 378,100 1.200% | -1,275,025![]() (-77.13%) | Filing History |
| 2024-02-02 2:15 pm Purchase | 2023-12-31 | 13G | VICOR CORP VICR | VINCIARELLI PATRIZIO | 21,046,408 47.600% | 1,372![]() (+0.01%) | Filing History |
| 2024-01-24 09:46 am Purchase | 2023-12-31 | 13G | VICOR CORP VICR | BlackRock Inc. BLK | 3,493,260 10.700% | 119,471![]() (+3.54%) | Filing History |

