VICOR CORP (VICR) - 13D/13G Filings

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
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Reported
DateTime
Transaction
Date
TypeCompany
Symbol
Filed By
Symbol
Shares Owned
% Owned
Shares Vs. Prev ReportView
2026-09-08
09:42 am
Purchase
2026-08-3113GVICOR CORP
VICR
T. Rowe Price Associates, Inc.4,384,882
12.800%
2,016,457increase
(+85.14%)
Filing
History
2026-09-03
12:35 pm
Sale
2026-08-3113GVICOR CORP
VICR
JPMORGAN CHASE & CO
JPM
1,394,339
4.000%
-949,593decrease
(-40.51%)
Filing
History
2026-08-14
10:38 am
Purchase
2026-06-3013GVICOR CORP
VICR
T. Rowe Price Associates, Inc.2,368,425
7.000%
479,979increase
(+25.42%)
Filing
History
2026-07-30
11:18 am
Sale
2026-06-3013GVICOR CORP
VICR
BlackRock Inc.
BLK
2,265,870
6.700%
-392,910decrease
(-14.78%)
Filing
History
2026-07-16
1:13 pm
Purchase
2026-06-3013GVICOR CORP
VICR
JPMORGAN CHASE & CO
JPM
2,343,932
6.900%
786,943increase
(+50.54%)
Filing
History
2026-06-04
1:18 pm
Sale
2026-05-2913GVICOR CORP
VICR
JPMORGAN CHASE & CO
JPM
1,556,989
4.500%
-549,739decrease
(-26.09%)
Filing
History
2026-05-15
10:07 am
Purchase
2026-03-3113GVICOR CORP
VICR
T. Rowe Price Associates, Inc.1,888,446
5.600%
1,888,446increase
(New Position)
Filing
History
2026-05-12
09:25 am
Unchanged
2026-03-3113GVICOR CORP
VICR
JPMORGAN CHASE & CO
JPM
2,106,728
6.200%
0
(Unchanged)
Filing
History
2026-05-04
08:17 am
Sale
2026-03-3113GVICOR CORP
VICR
JPMORGAN CHASE & CO
JPM
2,106,728
6.200%
-1,910,155decrease
(-47.55%)
Filing
History
2026-04-24
4:11 pm
Sale
2026-03-3113GVICOR CORP
VICR
BlackRock Inc.
BLK
2,658,780
7.900%
-834,480decrease
(-23.89%)
Filing
History
2026-03-27
1:55 pm
Sale
2026-03-1313GVICOR CORP
VICR
VANGUARD GROUP INC0
0.000%
-2,477,438decrease
(Position Closed)
Filing
History
2026-01-23
11:08 am
Sale
2025-12-3113GVICOR CORP
VICR
JPMORGAN CHASE & CO
JPM
4,016,883
12.100%
-428,695decrease
(-9.64%)
Filing
History
2025-04-22
12:01 pm
Purchase
2025-03-3113GVICOR CORP
VICR
JPMORGAN CHASE & CO
JPM
4,445,578
13.200%
745,150increase
(+20.14%)
Filing
History
2025-02-11
5:08 pm
Purchase
2024-12-3113GVICOR CORP
VICR
VINCIARELLI PATRIZIO21,051,235
47.300%
4,827increase
(+0.02%)
Filing
History
2024-12-04
2:38 pm
Purchase
2024-11-2913GVICOR CORP
VICR
JPMORGAN CHASE & CO
JPM
3,700,428
11.000%
425,528increase
(+12.99%)
Filing
History
2024-10-15
1:39 pm
Purchase
2024-09-3013GVICOR CORP
VICR
JPMORGAN CHASE & CO
JPM
3,274,900
9.800%
3,274,900increase
(New Position)
Filing
History
2024-02-13
5:17 pm
Purchase
2023-12-2913GVICOR CORP
VICR
VANGUARD GROUP INC2,477,438
7.570%
321,124increase
(+14.89%)
Filing
History
2024-02-09
6:05 pm
Sale
2024-02-0713GVICOR CORP
VICR
Capital International Investors378,100
1.200%
-1,275,025decrease
(-77.13%)
Filing
History
2024-02-02
2:15 pm
Purchase
2023-12-3113GVICOR CORP
VICR
VINCIARELLI PATRIZIO21,046,408
47.600%
1,372increase
(+0.01%)
Filing
History
2024-01-24
09:46 am
Purchase
2023-12-3113GVICOR CORP
VICR
BlackRock Inc.
BLK
3,493,260
10.700%
119,471increase
(+3.54%)
Filing
History
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