Michael McNamara is General Manager Mfg. Ops. at VICOR CORP (VICR). They have made 17 open-market trades across 1 company since 2013, most recently 2026-05-11.
CIK 0001545814
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 17 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| VICR | 18,185 | $3.5M |
Shares reported on the most recent Form 4, priced at the 2026-05-12 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 | 2026-05-11 | 2026-05-12 | $309.00 | $5.8M | -10.7% | -1.0% | -30.7% |
| VICR | SELL | 2026-03-17 | 2026-03-18 | $190.07 | $2.7M | -22.1% | +19.5% | +75.5% |
| VICR | SELL | 2025-12-11 | 2025-12-12 | $101.23 | $858K | +10.6% | +41.9% | +71.1% |
| VICR | SELL | 2023-06-15 | 2023-06-20 | $56.67 | $850K | +0.3% | +9.7% | +8.4% |
| VICR | SELL | 2021-11-03 | 2021-11-04 | $155.47 | $777K | +3.7% | -21.8% | -39.4% |
| VICR | SELL | 2021-11-01 | 2021-11-03 | $151.76 | $3.0M | +4.0% | -11.8% | -39.9% |
| VICR | SELL | 2021-10-28 | 2021-10-29 | $150.05 | $459K | +2.0% | -2.5% | -45.7% |
| VICR | SELL | 2021-10-26 | 2021-10-27 | $154.55 | $4.2M | +7.7% | +0.4% | -40.6% |
| VICR | SELL | 2021-08-04 | 2021-08-06 | $118.89 | $2.0M | -2.6% | +3.7% | +27.6% |
| VICR | SELL | 2021-08-02 | 2021-08-04 | $119.17 | $55K | -0.2% | +6.9% | +27.2% |
| VICR | SELL | 2021-03-11 | 2021-03-12 | $99.08 | $279K | -15.9% | -11.4% | -6.4% |
| VICR | SELL | 2020-12-16 | 2020-12-17 | $93.33 | $392K | -0.9% | +7.5% | +1.6% |
| VICR | SELL | 2020-12-15 | 2020-12-16 | $91.00 | $228K | -2.9% | +5.0% | +1.7% |
| VICR | SELL | 2020-09-15 | 2020-09-17 | $83.13 | $648K | -5.0% | +2.5% | +12.1% |
| VICR | SELL | 2020-09-10 | 2020-09-14 | $85.13 | $187K | -10.5% | +1.8% | +1.1% |
| VICR | SELL | 2019-12-11 | 2019-12-12 | $41.50 | $99K | +9.2% | +25.1% | -11.4% |
| VICR | SELL | 2013-12-10 | 2013-12-11 | $12.05 | $2K | -15.1% | +1.6% | +1.6% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.