undamentalytics Newsletter

Vicor Corp insider trading

Every open-market purchase and sale by Vicor Corp's officers, directors and largest shareholders since November 4, 2021, and what the share price did next.

Insider purchase Insider sale Marker size reflects trade value. Weekly closes adjusted for splits; may be delayed.
Vicor Corp insider open-market trades
DateInsiderTrade SharesPriceValue 1M after 3M after 6M after

From insiders' Form 4 filings with the SEC: open-market purchases and sales only (awards, option exercises and shares withheld for tax are excluded), combined to one line per insider per day. "Plan" marks trades the filing says were made under a pre-set Rule 10b5-1 trading plan, which are scheduled in advance. Price changes run from the close on the trade date; hover a figure for the change relative to the S&P 500. Past moves don't predict future ones.

Does following Vicor Corp’s insiders pay?

From April 29, 2010 to August 19, 2026, 28 insiders reported 14 open-market purchases and 306 sales not made under a pre-set plan in Vicor Corp. Twelve months after each purchase was reported, the shares were +23.8% against the S&P 500 on average (median +46.0%), over 14 purchases with a full year of prices; 79% beat the index. After sales, the shares moved +9.1% against the index over 12 months (a negative figure means selling was the right call). That rests on fewer than 20 purchases, too few to read much into. Buying each purchase the day after it was reported, an equal amount each, held 12 months or until that insider reported a sale, would have turned $10,000 on June 21, 2013 into $54,755 by November 2, 2026, +13.6% a year. It held shares 34% of the time; the S&P 500 on those same days, with Treasury bills otherwise, made $18,686 (+4.8% a year), and held throughout $59,452 (+14.3%).

$0$25.0k$50.0k$75.0k 2013201520172019202120232025 $59.5k$54.8k$18.7k
Copying Vicor Corp's insidersS&P 500, same days investedS&P 500, held throughout $10,000 copying every open-market purchase by Vicor Corp's insiders from June 21, 2013, before costs and taxes, marked weekly. Uninvested money earns the Treasury bill rate; the portfolio held shares 34% of the time.
Vicor Corp: each insider's record
InsiderRolePurchases12 months after their purchasesBeat the S&P 500Sales12 months after their salesLatest report
Tuozzolo Claudio Corp. Vice President 0 — — 50 +18.0% (41) June 12, 2026
Kelleher Barry President, Brick Business Unit 0 — — 28 +31.2% (28) November 9, 2018
Gusinov Alex Corp. Vice President Eng. 0 — — 25 +11.2% (21) May 14, 2026
Vinciarelli Patrizio Chairman and CEO 11 +39.7% (11) 91% 12 −45.5% (11) April 27, 2026
Morrison Kemble D VP Corporate Controller 0 — — 17 +16.1% (15) May 12, 2026
Gendron Robert Corp. VP - Marketing 0 — — 16 +16.4% (14) May 27, 2026
Mcnamara Michael General Manager Mfg. Ops. 0 — — 16 −19.0% (13) May 12, 2026
Simms James A CFO and Secretary 1 +13.9% (1) 100% 12 −15.7% (12) March 12, 2021
Carlson Jason Director 0 — — 12 +29.4% (10) May 8, 2026
Fendelet Quentin A. Corp. VP - CAO 2 −58.3% (2) 0% 10 +64.0% (6) May 12, 2026
Grava Nancy L VP Human Resources 0 — — 12 −11.2% (9) May 28, 2026
Nagel Richard J Jr Corp. VP-CAO 0 — — 12 −4.2% (12) March 3, 2022
Crilly Sean Corp. VP-Eng., Pwr Syst. 0 — — 11 −11.7% (8) June 8, 2026
D'amico Andrew Director 0 — — 10 −36.3% (7) May 27, 2026
Davies Philip D VP Global Sales & Marketing 0 — — 9 +11.7% (9) October 28, 2025
Henderson H Allen Director 0 — — 8 +53.7% (8) May 3, 2019
Anderson Samuel J Director 0 — — 7 −3.9% (5) August 18, 2026
Eichten Estia J Director 0 — — 7 +14.8% (7) October 27, 2025
Griffin Liam Director 0 — — 7 +11.9% (7) August 9, 2018
Doyle Alvaro VP and CIO 0 — — 6 +20.4% (3) May 13, 2026
Russell Robert F Other 0 — — 5 +52.4% (5) March 8, 2019
Lavie Zmira Director 0 — — 3 +85.5% (1) August 19, 2026
Riddiford David T Director 0 — — 3 −25.5% (3) November 29, 2016
Richardson Douglas VP Chief Information Officer 0 — — 2 −42.9% (2) November 12, 2014
Shen Zheng John Director 0 — — 2 — March 5, 2026
Zengilowski Richard E VP Human Resources 0 — — 2 −42.7% (2) November 3, 2014
Jeffery Joseph A VP-Chief Information Officer 0 — — 1 −56.8% (1) July 31, 2018
Schmidt James F CFO, Treasurer, Secretary 0 — — 1 — March 11, 2026

Moves are the shares’ return including dividends minus the S&P 500’s, from the close on the first trading day after each report; the number of trades with a finished 12-month window is in brackets. Green means the trade went the insider’s way (a purchase ahead of the index, a sale followed by the shares trailing it). A trade reported both by a director or officer and by a fund or company they are linked to counts once here, under the person. Purchases count only where the share price actually traded was at least $5. These figures describe what the shares did, not why anyone traded. Insiders across all companies.

When several insiders traded Vicor Corp

Months when 2 or more insiders became net buyers, or 3 or more net sellers, of Vicor Corp in reports dated in the 91 days before the month end, and how the stock did against the S&P 500 from that month end. After 15 selling crowds, +20.7%. One company's history is too short to judge by; the test across every company is the better guide.

MonthCrowd3 months on, vs S&P 5006 months12 months
October 31, 202511 selling+82.4%+186.5%not yet
November 29, 20243 selling+17.5%−16.5%+59.6%
March 28, 20243 selling−17.7%+0.6%+14.3%
August 31, 20235 selling−47.7%−58.8%−71.6%
September 30, 202011 selling+7.0%−6.9%+42.6%
May 29, 20209 selling+23.1%+14.3%+7.5%
December 31, 20194 selling+13.0%+55.8%+79.5%
April 30, 20193 selling−23.3%−7.1%+39.3%
May 31, 20189 selling+33.9%−23.1%−34.4%
November 30, 20173 selling+13.4%+102.2%+52.8%
May 31, 20175 selling+8.4%+24.9%+144.3%
November 30, 20164 selling−0.9%+22.0%+31.8%

Colours show whether the crowd was right: green when buyers were followed by a rise above the index, or sellers by a fall below it. Latest 12 of 15. Total returns from the month end; past patterns are not a forecast.

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