Brian Lian is CEO & President at Viking Therapeutics, Inc. (VKTX). They have made 11 open-market trades across 1 company since 2023, most recently 2026-07-29.
CIK 0001614578
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 11 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| VKTX | 2,572,441 | $72.0M |
Shares reported on the most recent Form 4, priced at the 2026-07-29 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 |
|---|---|---|---|---|---|---|---|---|
| VKTX | SELL | 2026-07-29 | 2026-07-29 | $33.32 | $4.9M | +3.0% | -3.9% | -25.6% |
| VKTX | SELL | 2026-01-05 | 2026-01-05 | $32.96 | $7.7M | +0.0% | -7.3% | +6.5% |
| VKTX | SELL | 2025-10-28 | 2025-10-28 | $35.01 | $2.7M | +4.5% | +4.6% | -9.8% |
| VKTX | SELL | 2025-07-03 | 2025-07-03 | $27.80 | $1.5M | +13.2% | +21.6% | -2.1% |
| VKTX | SELL | 2025-01-06 | 2025-01-06 | $42.71 | $15.8M | -23.2% | -21.2% | -49.9% |
| VKTX | SELL · 10b5-1 | 2024-09-20 | 2024-09-20 | $70.83 | $30.6M | -8.4% | -8.9% | -41.3% |
| VKTX | SELL · 10b5-1 | 2024-08-21 | 2024-08-22 | $69.90 | $70K | -9.3% | +1.5% | -19.5% |
| VKTX | SELL · 10b5-1 | 2024-08-19 | 2024-08-19 | $65.80 | $14.9M | -2.0% | +0.9% | -23.1% |
| VKTX | SELL | 2024-07-30 | 2024-07-31 | $57.58 | $13.3M | +2.8% | +12.9% | +29.1% |
| VKTX | SELL · 10b5-1 | 2024-02-09 | 2024-02-09 | $29.90 | $1.3M | +13.8% | +102.4% | +155.9% |
| VKTX | SELL · 10b5-1 | 2024-02-08 | 2024-02-08 | $26.70 | $8.5M | +19.8% | +116.0% | +172.1% |
| VKTX | SELL · 10b5-1 | 2024-01-31 | 2024-01-31 | $24.71 | $2.1M | +30.6% | +250.7% | +227.5% |
| VKTX | SELL · 10b5-1 | 2024-01-30 | 2024-01-30 | $23.95 | $838K | +29.0% | +225.0% | +218.1% |
| VKTX | SELL | 2023-05-01 | 2023-05-01 | $22.45 | $1.0M | +4.0% | -0.3% | -34.2% |
| VKTX | SELL | 2023-04-19 | 2023-04-21 | $21.45 | $751K | +0.1% | +13.7% | -29.0% |
| VKTX | SELL | 2023-04-17 | 2023-04-18 | $20.45 | $3.2M | +5.6% | +14.9% | -23.3% |
| VKTX | SELL | 2023-04-13 | 2023-04-13 | $18.45 | $2.9M | +6.3% | +17.6% | -17.7% |
| VKTX | SELL | 2023-03-30 | 2023-04-03 | $17.38 | $6.9M | +6.4% | +21.7% | -12.4% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.