Security key
925815102
VICOR CORP - Common Stock, par value $0.01 per share (VICR)
CUSIP: 925815102
Q2 2025 13F Holders as of 30 Jun 2025
- Security type / class
- Equity / Common Stock, par value $0.01 per share
- Total 13F shares
- 19,105,056
- Total 13F value
- $866,606,754
- Share change
- -847,354
- Put/Call ratio
- 176%
- SEC-reported price per share
- $45.36
- Number of holders
- 205
- Value change
- -$39,787,617
- Number of buys
- 95
- Number of sells
- 109
- Shares outstanding
- 33,970,029
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q2 2025
Institutions
205
Top holders
10
VICR full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q3 2025
Previous quarter: Q1 2025
VICOR CORP SEC filings
VICOR CORP company facts
Broader feeds
Reporting periods
Holder history for CUSIP 925815102
Recent filing periods:
Ownership snapshot
Top reported holders of VICR - VICOR CORP - Common Stock, par value $0.01 per share (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Patrizio Vinciarelli
Disclosed value leader
Patrizio Vinciarelli
Comparable rows
15/15
Latest evidence
31 Mar 2025
13D/G
13F
Lead comparable stake: 47%
13D/G row: Patrizio Vinciarelli
Showing 1-6 of 15 holder rows.
Quick read
Patrizio Vinciarelli leads the comparable SEC ownership view at 47%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Patrizio Vinciarelli's linked filing trail.
Comparable ownership
Top 5
Patrizio Vinciarelli
47%
JPMORGAN CHASE & CO
13%
BlackRock, Inc.
10%
VANGUARD GROUP INC
7.4%
STATE STREET CORP
2.5%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Patrizio Vinciarelli |
13D/G
|
47%
|
$1,066,666,077
21,051,235 shares
|
$0 | 31 Dec 2024 |
| JPMORGAN CHASE & CO |
13F
Company
|
13%
|
$207,994,488
4,446,226 shares
|
— | 31 Mar 2025 |
| BlackRock, Inc. |
13F
Company
|
10%
|
$164,251,315
3,511,144 shares
|
— | 31 Mar 2025 |
| VANGUARD GROUP INC |
13F
Company
|
7.4%
|
$116,849,376
2,497,849 shares
|
— | 31 Mar 2025 |
| STATE STREET CORP |
13F
Company
|
2.5%
|
$40,303,075
861,545 shares
|
— | 31 Mar 2025 |
| NEEDHAM INVESTMENT MANAGEMENT LLC |
13F
Company
|
2.3%
|
$36,207,720
774,000 shares
|
— | 31 Mar 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q2 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
205
Shares
19,105,056
Rows available
205
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q2 2025 vs Q1 2025 Across Filers
Q1 2025 holders
213
Q2 2025 holders
205
Holder diff
-8
| Investor | Q1 2025 Shares | Q2 2025 Shares | Share Diff | Share Chg % | Q1 2025 value | Q2 2025 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend