Kemble D. Morrison files SEC Form 4 disclosures for VICOR CORP. They have made 17 open-market trades across 1 company since 2010, most recently 2026-05-11.
CIK 0001411500
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 | 413 | $79K |
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 | $301.59 | $698K | -10.7% | -1.0% | -30.7% |
| VICR | SELL | 2026-02-24 | 2026-02-25 | $180.08 | $463K | -12.7% | -21.4% | +70.9% |
| VICR | SELL | 2025-10-23 | 2025-10-27 | $91.94 | $386K | -0.6% | -0.0% | +76.9% |
| VICR | SELL | 2024-02-26 | 2024-02-27 | $37.00 | $98K | -1.5% | +2.0% | -6.8% |
| VICR | SELL | 2023-07-27 | 2023-07-31 | $96.98 | $184K | -14.9% | -24.4% | -56.0% |
| VICR | SELL | 2021-08-05 | 2021-08-09 | $120.35 | $32K | -1.7% | +3.1% | +30.6% |
| VICR | SELL | 2021-04-26 | 2021-04-28 | $92.72 | $164K | -13.8% | -3.7% | +15.4% |
| VICR | SELL | 2020-09-09 | 2020-09-10 | $83.35 | $562K | -6.4% | +4.4% | +1.3% |
| VICR | SELL | 2020-04-29 | 2020-04-30 | $51.00 | $112K | +3.6% | +16.9% | +59.2% |
| VICR | SELL | 2019-12-05 | 2019-12-06 | $41.75 | $21K | +7.5% | +18.5% | +10.3% |
| VICR | SELL | 2018-11-15 | 2018-11-19 | $35.00 | $140K | +14.6% | +12.0% | +20.8% |
| VICR | SELL | 2018-05-24 | 2018-05-25 | $40.84 | $408K | +21.5% | +8.5% | +43.9% |
| VICR | SELL | 2017-06-09 | 2017-06-12 | $20.50 | $103K | -8.7% | -4.7% | -7.7% |
| VICR | SELL | 2016-12-15 | 2016-12-16 | $15.79 | $25K | -2.8% | -5.0% | +1.6% |
| VICR | SELL | 2016-12-12 | 2016-12-14 | $15.25 | $37K | +3.5% | -0.3% | +0.3% |
| VICR | SELL | 2016-12-09 | 2016-12-12 | $15.53 | $31K | +3.3% | +4.3% | +3.0% |
| VICR | SELL | 2010-10-25 | 2010-10-26 | $19.34 | $46K | -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.