VKTX · Insider Trading
Viking Therapeutics, Inc
Every open-market purchase and sale reported by VKTX officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-07 | Dorothy Elizabeth Kelly-Gemmell | Director | A | +6,333 | — |
| 2026-07-29 | Greg Zante | Chief Financial Officer | MIXED | +10,450 | −$710.14K |
| 2026-07-29 | Marianna Mancini | Chief Operating Officer | MIXED | +13,450 | −$609.64K |
| 2026-07-29 | Brian Lian | President & CEO | MIXED | +73,150 | −$4.95M |
| 2026-06-03 | Hubert C Chen | Chief Medical Officer | A | +190,000 deriv. | — |
| 2026-03-10 | Neil William Aubuchon | Chief Commercial Officer | Buy | +4,475 | +$149.91K |
| 2026-01-26 | Neil William Aubuchon | Chief Commercial Officer | A | +180,000 deriv. | — |
| 2026-01-05 | Sarah Kathryn Rouan | Director | A | +3,150 | — |
| 2026-01-05 | Matthew W Foehr | Director | MIXED | +3,150 | −$508.41K |
| 2026-01-05 | Charles A Rowland Jr | Director | A | +3,150 | — |
| 2026-01-05 | Lawson Macartney | Director | A | +3,150 | — |
| 2026-01-05 | J Matthew Singleton | Director | A | +3,150 | — |
| 2026-01-05 | Brian Lian | President & CEO | MIXED | +69,071 | −$7.69M |
| 2026-01-05 | Marianna Mancini | Chief Operating Officer | MIXED | +15,388 | −$1.90M |
| 2026-01-05 | Greg Zante | Chief Financial Officer | MIXED | +15,388 | −$1.90M |
| 2025-10-28 | Greg Zante | Chief Financial Officer | MIXED | +4,932 | −$216.48K |
| 2025-10-28 | Brian Lian | President & CEO | MIXED | +31,095 | −$1.36M |
| 2025-10-28 | Charles A Rowland Jr | Director | MIXED | — | −$1.83M |
| 2025-10-28 | Marianna Mancini | Chief Operating Officer | MIXED | +4,932 | −$216.49K |
| 2025-07-03 | Marianna Mancini | Chief Operating Officer | MIXED | +3,401 | −$118.47K |
| 2025-07-03 | Greg Zante | Chief Financial Officer | MIXED | +3,401 | −$118.43K |
| 2025-07-03 | Brian Lian | President & CEO | MIXED | +21,444 | −$747.63K |
| 2025-04-14 | Matthew W Foehr | Director | M | +20,786 | +$166.29K |
| 2025-04-08 | Sarah Kathryn Rouan | Director | Buy | +1,240 | +$29.94K |
| 2025-04-02 | Sarah Kathryn Rouan | Director | Buy | +1,240 | +$29.94K |
| 2025-01-06 | Sarah Kathryn Rouan | Director | A | +18,800 deriv. | — |
| 2025-01-06 | Matthew W Foehr | Director | A | +18,800 deriv. | — |
| 2025-01-06 | Charles A Rowland Jr | Director | A | +18,800 deriv. | — |
| 2025-01-06 | J Matthew Singleton | Director | A | +18,800 deriv. | — |
| 2025-01-06 | Lawson Macartney | Director | A | +18,800 deriv. | — |
| 2025-01-06 | Greg Zante | Chief Financial Officer | MIXED | +15,891 | −$2.15M |
| 2025-01-06 | Marianna Mancini | Chief Operating Officer | MIXED | +11,985 | −$2.32M |
| 2025-01-06 | Brian Lian | President & CEO | MIXED | +61,643 | −$8.31M |
| 2024-11-08 | Lawson Macartney | Director | MIXED | — | −$125.73K |
| 2024-10-28 | Greg Zante | Chief Financial Officer | MIXED | −37,686 | −$9.38M |
| 2024-10-25 | J Matthew Singleton | Director | MIXED | — | −$1.20M |
| 2024-10-25 | Sarah Kathryn Rouan | Director | MIXED | — | −$836.11K |
| 2024-09-20 | Brian Lian | President & CEO | MIXED | −50,000 | −$14.02M |
| 2024-09-20 | J Matthew Singleton | Director | MIXED | — | −$703.59K |
| 2024-08-22 | J Matthew Singleton | Director | MIXED | — | −$390.65K |
| 2024-08-22 | Brian Lian | President & CEO | MIXED | — | −$62.13K |
| 2024-08-19 | J Matthew Singleton | Director | MIXED | — | −$942.17K |
| 2024-08-19 | Brian Lian | President & CEO | MIXED | — | −$6.55M |
| 2024-08-14 | J Matthew Singleton | Director | MIXED | — | −$1.03M |
| 2024-07-31 | Marianna Mancini | Chief Operating Officer | MIXED | +13,641 | −$1.03M |
| 2024-07-31 | Brian Lian | President & CEO | MIXED | +88,474 | −$6.67M |
| 2024-07-31 | Greg Zante | Chief Financial Officer | MIXED | +12,198 | −$922.21K |
| 2024-05-03 | Greg Zante | Chief Financial Officer | MIXED | −32,507 | −$4.82M |
| 2024-05-02 | Marianna Mancini | Chief Operating Officer | MIXED | — | −$20.40M |
| 2024-03-27 | Greg Zante | Chief Financial Officer | MIXED | +15,057 | −$1.38M |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| Brian Lian | President & CEO | 2,720,958 | $73.11M |
| Marianna Mancini | Chief Operating Officer | 422,760 | $11.36M |
| Greg Zante | Chief Financial Officer | 233,421 | $6.27M |
| Matthew W Foehr | Director | 135,186 | $3.63M |
| Lawson Macartney | Director | 51,115 | $1.37M |
| Charles A Rowland Jr | Director | 33,150 | $890.74K |
| J Matthew Singleton | Director | 12,650 | $339.91K |
| Dorothy Elizabeth Kelly-Gemmell | Director | 6,333 | $170.17K |
| Neil William Aubuchon | Chief Commercial Officer | 4,475 | $120.24K |
| Sarah Kathryn Rouan | Director | 4,390 | $117.96K |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the VKTX quote page; the site-wide leaderboard is on the insider transactions hub.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.