VICR
Vicor Corporation
191.10$
-7.5%
vs. previous close
Closing price · As of: Oct 30, 2026
Ownership
Ownership Structure
Who owns Vicor Corporation (VICR)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 74.8% of the shares are freely tradable; institutional investors hold 63.3%.
Institutional ownership
?Share of the stock held by institutional investors (funds, banks, insurers) according to regulatory filings.
63.3%
Insiders
?Share of the stock held by the executives, founders and major shareholders of the company itself.
26.1%
Float
?Share of stock freely tradable on the market — not locked up in the hands of founders, insiders, or major shareholders.
74.8%
Short % of float
?Shares sold short as a percentage of the freely tradable float — high values signal many bets on falling prices.
11.5%
Shares Outstanding
?Total number of shares issued. Price times share count gives market cap.
34Mio.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 5.34 | 2,460,929 | -14.7 | 06/30/2026 |
| JPMorgan Chase & Co | 5.14 | 2,370,220 | +12.5 | 06/30/2026 |
| T. Rowe Price Associates, Inc. | 5.14 | 2,368,366 | +25.4 | 06/30/2026 |
| Vanguard Portfolio Management, LLC | 2.78 | 1,280,146 | +10.2 | 06/30/2026 |
| Vanguard Capital Management, LLC | 2.43 | 1,120,538 | +8.3 | 06/30/2026 |
| State Street Corp | 1.57 | 726,021 | -10.5 | 06/30/2026 |
| Geode Capital Management, LLC | 1.27 | 587,338 | -2.5 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| iShares Core S&P Mid-Cap ETF | 1.91 | 881,966 | +0.0 | 09/30/2026 |
| Vanguard MStar Total Stk Mkt Idx Invest | 1.76 | 810,220 | +0.3 | 09/30/2026 |
| Vanguard Small Cap Index | 1.26 | 580,271 | -0.6 | 09/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Vinciarelli Patrizio | Chairman & CEO | 8,307,390 | 1,587,542,229 $ | Oct 2, 2026 | direct |
| Eichten Estia J | Director | 104,825 | 20,032,058 $ | Jul 24, 2026 | direct |
| Anderson Samuel J | Director | 7,443 | 1,422,357 $ | Aug 20, 2026 | direct |
| Davies Philip D | Corp. VP-Global Sales & Mktg. | 2,320 | 443,352 $ | Oct 1, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Oct 2, 2026 | Vinciarelli Patrizio | Chairman & CEO | Sell | 1,312 | 313.32 | 411,075 |
| Oct 2, 2026 | Vinciarelli Patrizio | Chairman & CEO | Sell | 2,648 | 312.29 | 826,939 |
| Oct 2, 2026 | Vinciarelli Patrizio | Chairman & CEO | Sell | 2,679 | 311.42 | 834,305 |
| Oct 2, 2026 | Vinciarelli Patrizio | Chairman & CEO | Sell | 6,448 | 310.32 | 2,000,956 |
| Oct 2, 2026 | Vinciarelli Patrizio | Chairman & CEO | Sell | 877 | 309.10 | 271,079 |
| Oct 2, 2026 | Vinciarelli Patrizio | Chairman & CEO | Sell | 4,961 | 308.01 | 1,528,044 |
| Oct 2, 2026 | Vinciarelli Patrizio | Chairman & CEO | Sell | 1,075 | 306.93 | 329,945 |
| Oct 1, 2026 | Davies Philip D | Corp. VP-Global Sales & Mktg. | Sell | 201 | 320.18 | 64,356 |
| Oct 1, 2026 | Davies Philip D | Corp. VP-Global Sales & Mktg. | Sell | 299 | 319.67 | 95,580 |
| Oct 1, 2026 | Davies Philip D | Corp. VP-Global Sales & Mktg. | Sell | 400 | 322.03 | 128,810 |
| Oct 1, 2026 | Davies Philip D | Corp. VP-Global Sales & Mktg. | Sell | 500 | 317.32 | 158,662 |
| Oct 1, 2026 | Davies Philip D | Corp. VP-Global Sales & Mktg. | Sell | 300 | 316.26 | 94,877 |
| Oct 1, 2026 | Davies Philip D | Corp. VP-Global Sales & Mktg. | Sell | 100 | 313.20 | 31,320 |
| Oct 1, 2026 | Davies Philip D | Corp. VP-Global Sales & Mktg. | Sell | 272 | 308.49 | 83,909 |
| Oct 1, 2026 | Davies Philip D | Corp. VP-Global Sales & Mktg. | Sell | 200 | 307.09 | 61,417 |
| Oct 1, 2026 | Davies Philip D | Corp. VP-Global Sales & Mktg. | Other | 2,216 | 33.96 | 75,255 |
| Oct 1, 2026 | Davies Philip D | Corp. VP-Global Sales & Mktg. | Other | 856 | 41.61 | 35,618 |
| Oct 1, 2026 | Vinciarelli Patrizio | Chairman & CEO | Sell | 100 | 324.98 | 32,498 |
| Oct 1, 2026 | Vinciarelli Patrizio | Chairman & CEO | Sell | 600 | 323.37 | 194,023 |
| Oct 1, 2026 | Vinciarelli Patrizio | Chairman & CEO | Sell | 900 | 330.00 | 297,000 |
| Oct 1, 2026 | Vinciarelli Patrizio | Chairman & CEO | Sell | 1,100 | 321.57 | 353,724 |
| Oct 1, 2026 | Vinciarelli Patrizio | Chairman & CEO | Sell | 1,800 | 320.10 | 576,175 |
| Oct 1, 2026 | Vinciarelli Patrizio | Chairman & CEO | Sell | 1,700 | 319.01 | 542,312 |
| Oct 1, 2026 | Vinciarelli Patrizio | Chairman & CEO | Sell | 2,400 | 318.05 | 763,326 |
| Oct 1, 2026 | Vinciarelli Patrizio | Chairman & CEO | Sell | 2,100 | 316.86 | 665,403 |
| Oct 1, 2026 | Vinciarelli Patrizio | Chairman & CEO | Sell | 700 | 314.71 | 220,294 |
| Oct 1, 2026 | Vinciarelli Patrizio | Chairman & CEO | Sell | 500 | 313.75 | 156,877 |
| Oct 1, 2026 | Vinciarelli Patrizio | Chairman & CEO | Sell | 400 | 311.81 | 124,722 |
| Oct 1, 2026 | Vinciarelli Patrizio | Chairman & CEO | Sell | 300 | 311.23 | 93,370 |
| Oct 1, 2026 | Vinciarelli Patrizio | Chairman & CEO | Sell | 1,600 | 308.79 | 494,063 |
| Oct 1, 2026 | Vinciarelli Patrizio | Chairman & CEO | Sell | 2,300 | 308.24 | 708,941 |
| Oct 1, 2026 | Vinciarelli Patrizio | Chairman & CEO | Sell | 1,300 | 315.78 | 410,511 |
| Sep 1, 2026 | Davies Philip D | Corp. VP-Global Sales & Mktg. | Sell | 100 | 184.85 | 18,485 |
| Sep 1, 2026 | Davies Philip D | Corp. VP-Global Sales & Mktg. | Sell | 700 | 178.66 | 125,062 |
| Sep 1, 2026 | Davies Philip D | Corp. VP-Global Sales & Mktg. | Sell | 1,100 | 177.63 | 195,394 |
| Sep 1, 2026 | Davies Philip D | Corp. VP-Global Sales & Mktg. | Sell | 1,173 | 176.59 | 207,143 |
| Sep 1, 2026 | Davies Philip D | Corp. VP-Global Sales & Mktg. | Other | 3,073 | 41.61 | 127,868 |
| Aug 20, 2026 | Anderson Samuel J | Director | Other | 1,216 | 32.89 | 39,994 |
| Aug 20, 2026 | Anderson Samuel J | Director | Other | 200 | 100.00 | 20,000 |
| Aug 20, 2026 | Anderson Samuel J | Director | Other | 908 | 44.07 | 40,016 |
| Aug 20, 2026 | Anderson Samuel J | Director | Other | 754 | 53.07 | 40,015 |
| Aug 20, 2026 | Anderson Samuel J | Director | Other | 331 | 60.37 | 19,982 |
| Aug 17, 2026 | Lavie Zmira | Director | Sell | 908 | 250.00 | 227,000 |
| Aug 17, 2026 | Lavie Zmira | Director | Other | 908 | 44.07 | 40,016 |
| Aug 17, 2026 | Anderson Samuel J | Director | Sell | 2,073 | 252.60 | 523,640 |
| Aug 3, 2026 | Davies Philip D | Corp. VP-Global Sales & Mktg. | Sell | 400 | 215.03 | 86,011 |
| Aug 3, 2026 | Davies Philip D | Corp. VP-Global Sales & Mktg. | Sell | 1,372 | 214.02 | 293,635 |
| Aug 3, 2026 | Davies Philip D | Corp. VP-Global Sales & Mktg. | Sell | 500 | 212.54 | 106,268 |
| Aug 3, 2026 | Davies Philip D | Corp. VP-Global Sales & Mktg. | Sell | 100 | 216.04 | 21,604 |
| Aug 3, 2026 | Davies Philip D | Corp. VP-Global Sales & Mktg. | Sell | 200 | 206.42 | 41,284 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: October 30, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.