Argeris N. Karabelas is Director at Vanda Pharmaceuticals Inc. (VNDA). They have made 20 open-market trades across 5 companies since 2006, most recently 2026-05-29.
CIK 0001191229
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.
3 open-market purchases totalling $3.9M since 2006, against 17 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| RGNX | SELL · 10b5-1 | 2024-10-01 | 2024-10-02 | $10.11 | $101K | +4.5% | -9.9% | -20.8% |
| RGNX | SELL · 10b5-1 | 2024-09-03 | 2024-09-04 | $11.56 | $116K | +13.3% | -13.5% | -17.3% |
| RGNX | SELL · 10b5-1 | 2024-08-01 | 2024-08-05 | $13.51 | $136K | -0.9% | -9.9% | -30.0% |
| RGNX | SELL · 10b5-1 | 2024-07-29 | 2024-07-30 | $15.05 | $166K | -18.3% | -16.1% | -34.4% |
| RGNX | SELL · 10b5-1 | 2024-07-01 | 2024-07-03 | $11.27 | $113K | +24.2% | +19.4% | -6.5% |
| VRX | BUY | 2016-08-11 | 2016-08-12 | $24.65 | $99K | +19.2% | +11.7% | -34.4% |
| ITEK | BUY | 2015-02-23 | 2015-02-25 | $6.00 | $3.6M | -29.1% | +4.1% | +4.1% |
| VNDA | SELL | 2010-03-12 | 2010-03-15 | $11.80 | $2.4M | -4.3% | -1.1% | -1.1% |
| VNDA | SELL | 2009-12-14 | 2009-12-16 | $11.09 | $2.5M | -4.3% | -1.1% | -1.1% |
| VNDA | SELL | 2009-12-08 | 2009-12-10 | $11.52 | $1.5M | -4.3% | -1.1% | -1.1% |
| VNDA | SELL | 2009-12-04 | 2009-12-08 | $11.64 | $2.3M | -4.3% | -1.1% | -1.1% |
| VNDA | SELL | 2009-10-13 | 2009-10-15 | $12.65 | $3.0M | -4.3% | -1.1% | -1.1% |
| BDSI | SELL | 2009-06-24 | 2009-06-26 | $6.50 | $335K | -23.8% | -3.8% | -3.8% |
| BDSI | SELL | 2009-06-22 | 2009-06-24 | $6.37 | $283K | -23.8% | -3.8% | -3.8% |
| BDSI | SELL | 2009-06-17 | 2009-06-19 | $6.44 | $1.1M | -23.8% | -3.8% | -3.8% |
| VNDA | SELL | 2007-02-23 | 2007-02-27 | $26.02 | $10.0M | -4.3% | -1.1% | -1.1% |
| VNDA | SELL | 2007-02-22 | 2007-02-23 | $26.82 | $1.9M | -4.3% | -1.1% | -1.1% |
| VNDA | SELL | 2007-02-20 | 2007-02-22 | $27.03 | $11.8M | -4.3% | -1.1% | -1.1% |
| VNDA | SELL | 2006-12-12 | 2006-12-14 | $25.18 | $10.7M | -4.3% | -1.1% | -1.1% |
| VNDA | SELL | 2006-12-11 | 2006-12-13 | $26.40 | $8.6M | -4.3% | -1.1% | -1.1% |
| VNDA | SELL | 2006-11-27 | 2006-11-29 | $14.18 | $4.3M | -4.3% | -1.1% | -1.1% |
| VNDA | SELL | 2006-11-22 | 2006-11-27 | $14.12 | $4.2M | -4.3% | -1.1% | -1.1% |
| VNDA | SELL | 2006-11-21 | 2006-11-22 | $14.55 | $728K | -4.3% | -1.1% | -1.1% |
| VNDA | SELL | 2006-11-17 | 2006-11-22 | $14.41 | $4.6M | -4.3% | -1.1% | -1.1% |
| HGSI | BUY | 2006-11-10 | 2006-11-14 | $12.15 | $152K | N/A | N/A | N/A |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.