Vicor Corporation
A designer and maker of modular power components and systems, Vicor converts electricity from a source into the precise voltages that power everything from AI data centers and aerospace gear to industrial and defense equipment. Founded in 1981 by Patrizio Vinciarelli, a theoretical physicist who once worked at CERN, the company's name is a shortened take on its founder's surname, Vinciarelli. Its products include Power-on-Package and Factorized Power Architecture modules, built at a main plant in Andover, Massachusetts.
Granted 434.2K · Sold 1.44M
Granted 4.7K · Sold 54.1K
Granted 47.8K · Sold 30.0K
Granted 52.9K · Sold 79.2K
Granted 9.5K · Sold 3.8K
Granted 5.0K · Sold 22.6K
Granted 3.1K · Sold 15.1K
Granted 31.0K · Sold 32.5K
Granted 55.8K · Sold 53.9K
Granted 28.2K · Sold 28.2K
Granted 9.6K · Sold 9.6K
Granted 13.6K · Sold 19.0K
Granted 47.9K · Sold 48.8K
Granted 16.7K · Sold 16.7K
Granted 53.5K · Sold 53.5K
Granted 8.4K · Sold 8.4K
Granted 4.6K · Sold 4.6K
Granted 3.7K · Sold 3.7K
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Vinciarelli PatrizioChairman & CEO, Director, 10% owner · 617 transactions | -10.5% | 8.58M | 434.2K | — | 1.44M |
| Eichten Estia JDirector · 17 transactions | -58.5% | 98.8K | 4.7K | — | 54.1K |
| McNamara MichaelGeneral Manager Mfg. Ops., Director · 15 transactions | +12797.2% | 18.2K | 47.8K | — | 30.0K |
| Tuozzolo ClaudioCorp. Vice President, Director · 60 transactions | -66.5% | 13.2K | 52.9K | — | 79.2K |
| Anderson Samuel JDirector · 13 transactions | +96.3% | 7.4K | 9.5K | — | 3.8K |
| Crilly SeanCorp. VP-Eng., Pwr Syst. · 12 transactions | -69.2% | 7.2K | 5.0K | — | 22.6K |
| Gusinov AlexCorp. Vice President Eng. · 9 transactions | -63.3% | 6.0K | 3.1K | — | 15.1K |
| Fendelet Quentin A.Corp. VP - CAO · 41 transactions | — | 5.1K | 31.0K | — | 32.5K |
| Davies Philip DVP Global Sales & Marketing, Director · 52 transactions | — | 1.9K | 55.8K | — | 53.9K |
| Doyle AlvaroVP and CIO · 24 transactions | +3750% | 1.6K | 28.2K | — | 28.2K |
| Morrison Kemble DVP-Corporate Controller · 20 transactions | +323.4% | 1.6K | 9.6K | — | 9.6K |
| Gendron RobertCorp. VP - Marketing · 29 transactions | -78% | 1.2K | 13.6K | — | 19.0K |
| Schmidt James FCFO, Treasurer, Secretary, Director · 84 transactions | -53% | 411 | 47.9K | — | 48.8K |
| Grava Nancy LVP Human Resources · 24 transactions | -89.1% | 323 | 16.7K | — | 16.7K |
| D'Amico AndrewDirector · 120 transactions | — | 0 | 53.5K | — | 53.5K |
| Carlson JasonDirector · 16 transactions | — | 0 | 8.4K | — | 8.4K |
| Lavie ZmiraDirector · 8 transactions | — | 0 | 4.6K | — | 4.6K |
| Shen Zheng JohnDirector · 6 transactions | — | 0 | 3.7K | — | 3.7K |
Select a row to see that insider’s individual transactions. Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.
Net open-market activity over the last 3 years: -1.93M shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.