Claudio Tuozzolo is President & VP at VICOR CORP (VICR). They have made 50 open-market trades across 1 company since 2010, most recently 2026-06-11.
CIK 0001403540
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 50 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| VICR | 13,240 | $2.5M |
Shares reported on the most recent Form 4, priced at the 2026-06-12 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| VICR | SELL | 2026-06-11 | 2026-06-12 | $292.89 | $214K | +1.5% | -22.6% | -45.4% |
| VICR | SELL | 2026-05-26 | 2026-05-28 | $328.41 | $985K | -16.6% | +7.8% | -42.1% |
| VICR | SELL | 2026-05-11 | 2026-05-12 | $304.65 | $2.7M | -10.7% | -1.0% | -30.7% |
| VICR | SELL | 2026-05-06 | 2026-05-08 | $276.93 | $1.7M | -6.0% | -2.3% | -22.3% |
| VICR | SELL | 2026-04-24 | 2026-04-27 | $270.50 | $3.0M | +3.2% | +36.5% | -18.6% |
| VICR | SELL | 2026-02-25 | 2026-02-26 | $197.85 | $919K | -13.2% | -29.8% | +70.4% |
| VICR | SELL | 2026-02-24 | 2026-02-25 | $179.43 | $950K | -12.7% | -21.4% | +70.9% |
| VICR | SELL | 2026-02-23 | 2026-02-24 | $174.60 | $780K | -15.3% | -17.8% | +73.2% |
| VICR | SELL | 2025-11-12 | 2025-11-13 | $94.58 | $1.2M | +3.8% | +12.6% | +89.2% |
| VICR | SELL | 2025-10-24 | 2025-10-28 | $90.57 | $951K | -2.5% | -0.3% | +76.7% |
| VICR | SELL | 2025-10-23 | 2025-10-27 | $91.86 | $2.7M | -0.6% | -0.0% | +76.9% |
| VICR | SELL | 2025-02-26 | 2025-02-28 | $64.78 | $181K | -16.6% | -26.8% | -33.1% |
| VICR | SELL | 2025-02-24 | 2025-02-26 | $61.00 | $214K | -24.6% | -25.4% | -34.5% |
| VICR | SELL | 2024-11-07 | 2024-11-08 | $57.06 | $342K | -8.9% | -6.3% | -15.4% |
| VICR | SELL | 2023-07-27 | 2023-07-31 | $95.90 | $685K | -14.9% | -24.4% | -56.0% |
| VICR | SELL | 2021-11-15 | 2021-11-16 | $160.88 | $301K | -8.0% | -26.8% | -37.9% |
| VICR | SELL | 2021-10-29 | 2021-11-02 | $151.55 | $346K | +5.6% | -7.1% | -38.0% |
| VICR | SELL | 2021-09-16 | 2021-09-20 | $127.40 | $235K | +6.1% | +18.3% | -9.3% |
| VICR | SELL | 2021-09-13 | 2021-09-15 | $124.01 | $480K | +8.2% | +16.6% | -5.4% |
| VICR | SELL | 2021-09-09 | 2021-09-13 | $126.19 | $282K | +9.8% | +14.5% | -5.3% |
| VICR | SELL | 2021-08-04 | 2021-08-06 | $119.04 | $197K | -2.6% | +3.7% | +27.6% |
| VICR | SELL | 2021-07-26 | 2021-07-27 | $112.07 | $2.0M | +12.5% | +11.3% | +37.2% |
| VICR | SELL | 2021-03-12 | 2021-03-15 | $100.27 | $382K | -13.9% | -12.3% | -2.5% |
| VICR | SELL | 2021-03-01 | 2021-03-02 | $101.54 | $1.5M | +0.3% | -10.1% | -5.0% |
| VICR | SELL | 2020-12-15 | 2020-12-16 | $91.37 | $323K | -2.9% | +5.0% | +1.7% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.