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 785.3K · Bought 204.8K · Sold 2.33M
Granted 61.2K · Sold 307.9K
Granted 27.5K · Sold 27.8K
Granted 122.8K · Sold 108.2K
Granted 4.3K · Sold 3.7K
Granted 21.9K · Sold 21.3K
Granted 272.6K · Sold 258.7K
Granted 25.6K · Sold 25.5K
Granted 203.5K · Bought 45.0K · Sold 239.2K
Granted 78.6K · Bought 6.0K · Sold 80.3K
Granted 99.5K · Sold 97.1K
Granted 55.5K · Sold 59.3K
Granted 31.0K · Sold 33.1K
Granted 20.1K · Sold 20.1K
Granted 192.9K · Sold 191.2K
Granted 155.8K · Sold 153.9K
Granted 29.6K · Bought 10 · Sold 29.9K
Granted 40.9K · Sold 40.9K
Granted 40.8K · Sold 41.6K
Granted 6.5K · Sold 6.5K
Granted 49.1K · Sold 49.1K
Granted 47.9K · Sold 48.8K
Granted 39.9K · Sold 39.9K
Granted 403 · Sold 403
Granted 27.1K · Sold 26.9K
Granted 90.7K · Sold 90.7K
Granted 64.7K · Sold 64.7K
Granted 28.3K · Sold 28.3K
Granted 10.0K · Sold 11.7K
Granted 4.6K · Sold 4.6K
Granted 3.7K · Sold 3.7K
Granted 1.7K · Sold 1.7K
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Vinciarelli PatrizioChairman & CEO, Director, 10% owner · 774 transactions | — | 8.58M | 785.3K | 204.8K | 2.33M |
| Eichten Estia JDirector · 164 transactions | — | 98.8K | 61.2K | — | 307.9K |
| Riddiford David TDirector · 21 transactions | — | 87.0Kas of Nov 2016 | 27.5K | — | 27.8K |
| McNamara MichaelGeneral Manager Mfg. Ops., Director · 57 transactions | — | 18.2K | 122.8K | — | 108.2K |
| Glazer Mark AVP Treasury Services · 7 transactions | — | 13.7Kas of May 2008 | 4.3K | — | 3.7K |
| Zengilowski Richard EVP Human Resources · 13 transactions | — | 13.6Kas of Oct 2014 | 21.9K | — | 21.3K |
| Tuozzolo ClaudioCorp. Vice President, Director · 180 transactions | — | 13.2K | 272.6K | — | 258.7K |
| Richardson DouglasVP Chief Information Officer · 14 transactions | — | 12.2Kas of Nov 2014 | 25.6K | — | 25.5K |
| Simms James ACFO and Secretary, Director · 76 transactions | — | 11.3Kas of Mar 2021 | 203.5K | 45.0K | 239.2K |
| Anderson Samuel JDirector · 72 transactions | — | 7.4K | 78.6K | 6.0K | 80.3K |
| Crilly SeanCorp. VP-Eng., Pwr Syst. · 34 transactions | — | 7.2K | 99.5K | — | 97.1K |
| Gusinov AlexCorp. Vice President Eng. · 52 transactions | — | 6.0K | 55.5K | — | 59.3K |
| Fendelet Quentin A.Corp. VP - CAO · 42 transactions | — | 5.1K | 31.0K | — | 33.1K |
| Jeffery Joseph AVP-Chief Information Officer · 10 transactions | — | 3.6Kas of Jun 2020 | 20.1K | — | 20.1K |
| Kelleher BarryDirector · 133 transactions | — | 2.3Kas of Nov 2018 | 192.9K | — | 191.2K |
| Davies Philip DVP Global Sales & Marketing, Director · 68 transactions | — | 1.9K | 155.8K | — | 153.9K |
| Doyle AlvaroVP and CIO · 31 transactions | — | 1.6K | 29.6K | 10 | 29.9K |
| Morrison Kemble DVP-Corporate Controller · 54 transactions | — | 1.6K | 40.9K | — | 40.9K |
| Gendron RobertCorp. VP - Marketing · 56 transactions | — | 1.2K | 40.8K | — | 41.6K |
| Ansour MichaelDirector · 3 transactions | — | 1.0Kas of Mar 2007 | 6.5K | — | 6.5K |
| Griffin LiamDirector · 36 transactions | — | 517as of Aug 2018 | 49.1K | — | 49.1K |
| Schmidt James FCFO, Treasurer, Secretary, Director · 84 transactions | — | 411 | 47.9K | — | 48.8K |
| Grava Nancy LVP Human Resources · 44 transactions | — | 323 | 39.9K | — | 39.9K |
| Prager Jay MDirector · 2 transactions | — | 296as of Feb 2006 | 403 | — | 403 |
| Henderson H AllenDirector · 19 transactions | — | 219as of May 2019 | 27.1K | — | 26.9K |
| D'Amico AndrewDirector · 176 transactions | — | 0 | 90.7K | — | 90.7K |
| Carlson JasonDirector · 56 transactions | — | 0 | 64.7K | — | 64.7K |
| Nagel Richard J JrCorp. VP-CAO · 32 transactions | — | 0as of Mar 2022 | 28.3K | — | 28.3K |
| Russell Robert FVP-Product Marketing · 9 transactions | — | 0as of Mar 2019 | 10.0K | — | 11.7K |
| Lavie ZmiraDirector · 8 transactions | — | 0 | 4.6K | — | 4.6K |
| Shen Zheng JohnDirector · 6 transactions | — | 0 | 3.7K | — | 3.7K |
| Germain Thomas A StVP-Financial Services · 2 transactions | — | 0as of Feb 2006 | 1.7K | — | 1.7K |
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 all recorded history: -4.19M shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.