10 insiders reported 52 Form 4 transactions for Viking Therapeutics, Inc. (VKTX) over the past 18 months (most recent 2026-08-07). Recent activity: Kelly-Gemmell Dorothy Elizabeth (Director) Buy 6,333 shares, Lian Brian (President & CEO) Buy 221,667 shares, Mancini Marianna (Chief Operating Officer) Buy 31,667 shares, ZANTE GREG (Chief Financial Officer) Buy 31,667 shares, Mancini Marianna (Chief Operating Officer) Sell 18,217 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-07 | Kelly-Gemmell Dorothy Elizabeth | Director | Buy | 6,333 | $0 |
| 2026-07-29 | Lian Brian | President & CEO | Buy | 221,667 | $0 |
| 2026-07-29 | Mancini Marianna | Chief Operating Officer | Buy | 31,667 | $0 |
| 2026-07-29 | ZANTE GREG | Chief Financial Officer | Buy | 31,667 | $0 |
| 2026-07-29 | Mancini Marianna | Chief Operating Officer | Sell | 18,217 | $609,636 |
| 2026-07-29 | ZANTE GREG | Chief Financial Officer | Sell | 21,217 | $710,141 |
| 2026-07-29 | Lian Brian | President & CEO | Sell | 148,517 | $4.9M |
| 2026-03-10 | Aubuchon Neil William | Chief Commercial Officer | Buy | 4,475 | $149,912 |
| 2026-01-05 | ZANTE GREG | Chief Financial Officer | Sell | 10,300 | $352,672 |
| 2026-01-05 | ZANTE GREG | Chief Financial Officer | Buy | 32,049 | $0 |
| 2026-01-05 | ZANTE GREG | Chief Financial Officer | Sell | 31,961 | $1.0M |
| 2026-01-05 | ZANTE GREG | Chief Financial Officer | Sell | 13,900 | $463,982 |
| 2026-01-05 | ZANTE GREG | Chief Financial Officer | Buy | 41,000 | $0 |
| 2026-01-05 | ZANTE GREG | Chief Financial Officer | Sell | 1,500 | $48,135 |
| 2026-01-05 | MACARTNEY LAWSON | Director | Buy | 3,150 | $0 |
| 2026-01-05 | SINGLETON J MATTHEW | Director | Buy | 3,150 | $0 |
| 2026-01-05 | Rouan Sarah Kathryn | Director | Buy | 3,150 | $0 |
| 2026-01-05 | Lian Brian | President & CEO | Buy | 78,400 | $0 |
| 2026-01-05 | Lian Brian | President & CEO | Buy | 224,080 | $0 |
| 2026-01-05 | Lian Brian | President & CEO | Sell | 132,454 | $4.3M |
| 2026-01-05 | Lian Brian | President & CEO | Sell | 53,279 | $1.8M |
| 2026-01-05 | Lian Brian | President & CEO | Sell | 41,276 | $1.4M |
| 2026-01-05 | Lian Brian | President & CEO | Sell | 6,400 | $224,448 |
| 2026-01-05 | Rowland Charles A Jr | Director | Buy | 3,150 | $0 |
| 2026-01-05 | FOEHR MATTHEW W | Director | Buy | 16,000 | $53,280 |
Source: SEC Form 4 filings · as of 2026-08-07