Based on data from the past 90 days ending December 12, 2025, Viking Therapeutics's three largest insider shareholders are President & CEO Brian Lian (2.42Mn shares), Chief Operating Officer Marianna Mancini (382.47K shares), Chief Financial Officer Greg Zante (173.59K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Brian Lian | President & CEO | 2,419,109 | 28 Oct, 2025 |
| Marianna Mancini | Chief Operating Officer | 382,467 | 28 Oct, 2025 |
| Greg Zante | Chief Financial Officer | 173,592 | 28 Oct, 2025 |
| Matthew W Foehr | 132,036 | 14 Apr, 2025 | |
| Michael Morneau | VP And Finance And Administration | 116,062 | 19 Jan, 2021 |
| Lawson Macartney | 47,965 | 08 Nov, 2024 | |
| Charles A Jr Rowland | 30,000 | 28 Oct, 2025 | |
| J Matthew Singleton | 9,500 | 25 Oct, 2024 | |
| Sarah Kathryn Rouan | 1,240 | 08 Apr, 2025 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 27 Oct, 2025 | Charles A Jr Rowland | Common Stock, par value $0.00001 per share | A | 16,000 | $4.48 | 46,000 | D | A |
| 27 Oct, 2025 | Brian Lian | Common Stock, par value $0.00001 per share | A | 70,084 | $0.00 | 2,458,098 | D | A |
| 27 Oct, 2025 | Greg Zante | Common Stock, par value $0.00001 per share | A | 11,117 | $0.00 | 179,777 | D | A |
| 27 Oct, 2025 | Marianna Mancini | Common Stock, par value $0.00001 per share | A | 11,117 | $0.00 | 388,652 | D | A |
| 28 Oct, 2025 | Marianna Mancini | Common Stock, par value $0.00001 per share | D | 6,185 | $35.00 | 382,467 | D | S |
| 28 Oct, 2025 | Brian Lian | Common Stock, par value $0.00001 per share | D | 38,989 | $35.01 | 2,419,109 | D | S |
| 28 Oct, 2025 | Greg Zante | Common Stock, par value $0.00001 per share | D | 6,185 | $35.00 | 173,592 | D | S |
| 27 Oct, 2025 | Charles A Jr Rowland | Common Stock, par value $0.00001 per share | A | 22,000 | $5.80 | 68,000 | D | A |
| 27 Oct, 2025 | Charles A Jr Rowland | Common Stock, par value $0.00001 per share | A | 22,000 | $4.88 | 90,000 | D | A |
| 27 Oct, 2025 | Charles A Jr Rowland | Common Stock, par value $0.00001 per share | D | 60,000 | $35.57 | 30,000 | D | S |
| 02 Jul, 2025 | Brian Lian | Common Stock, par value $0.00001 per share | A | 48,333 | $0.00 | 2,414,903 | D | A |
| 02 Jul, 2025 | Marianna Mancini | Common Stock, par value $0.00001 per share | A | 7,667 | $0.00 | 381,801 | D | A |
| 02 Jul, 2025 | Greg Zante | Common Stock, par value $0.00001 per share | A | 7,667 | $0.00 | 172,926 | D | A |
| 03 Jul, 2025 | Greg Zante | Common Stock, par value $0.00001 per share | D | 4,266 | $27.76 | 168,660 | D | S |
| 03 Jul, 2025 | Marianna Mancini | Common Stock, par value $0.00001 per share | D | 4,266 | $27.77 | 377,535 | D | S |
| 03 Jul, 2025 | Brian Lian | Common Stock, par value $0.00001 per share | D | 26,889 | $27.80 | 2,388,014 | D | S |
| 11 Apr, 2025 | Matthew W Foehr | Common Stock, par value $0.00001 per share | A | 20,786 | $8.00 | 132,036 | D | M |
| 11 Apr, 2025 | Matthew W Foehr | - | - | 132,036 | D | |||
| 31 Mar, 2025 | Sarah Kathryn Rouan | Common Stock, par value $0.00001 per share | A | 1,240 | $24.15 | 1,240 | D | P |
| 31 Mar, 2025 | Sarah Kathryn Rouan | Common Stock, par value $0.00001 per share | A | 1,240 | $24.15 | 1,240 | D | P |