Updated Jul 16, 2026 · Last SEC filing 2026-06-03
Viking Therapeutics, Inc. (VKTX) has filed 1 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-06-03. 2 Form 8-K material event filings were reported by VKTX in the last 90 days. InsiderAlpha tracks every VKTX SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SEC CIK | 0001607678 |
|---|
| Form 4 filings (90d) | 1 |
|---|---|
| Form 8-K filings (90d) | 2 |
| Latest Form 4 filing | 2026-06-03 |
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Aubuchon Neil William | Chief Commercial Officer | P — Open-market purchase | 4.5K | $33.50 | $150K | SEC | |
| Mancini Marianna | Chief Operating Officer | S — Open-market sale | 10.5K | $34.22 | $359K | SEC | |
| ZANTE GREG | Chief Financial Officer | S — Open-market sale | 32.0K | $32.30 | $1.03M | SEC | |
| Lian Brian | President & CEO | S — Open-market sale | 53.3K | $33.38 | $1.78M | SEC | |
| Lian Brian | President & CEO | S — Open-market sale | 6.4K | $35.07 | $224K | SEC | |
| Mancini Marianna | Chief Operating Officer | S — Open-market sale | 13.6K | $33.37 | $454K | SEC | |
| Mancini Marianna | Chief Operating Officer | S — Open-market sale | 1.6K | $35.07 | $56K | SEC | |
| ZANTE GREG | Chief Financial Officer | S — Open-market sale | 10.3K | $34.24 | $353K | SEC | |
| Lian Brian | President & CEO | S — Open-market sale | 132.5K | $32.29 | $4.28M | SEC | |
| ZANTE GREG | Chief Financial Officer | S — Open-market sale | 1.5K | $32.09 | $48K | SEC | |
| Mancini Marianna | Chief Operating Officer | S — Open-market sale | 32.0K | $32.29 | $1.03M | SEC | |
| ZANTE GREG | Chief Financial Officer | S — Open-market sale | 13.9K | $33.38 | $464K | SEC | |
| Lian Brian | President & CEO | S — Open-market sale | 41.3K | $34.22 | $1.41M | SEC | |
| Lian Brian | President & CEO | A — Grant or award | 78.4K | $0.00 | — | SEC | |
| ZANTE GREG | Chief Financial Officer | A — Grant or award | 41.0K | $0.00 | — | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for Viking Therapeutics, Inc. (VKTX). Updated in real time as new filings are submitted to the SEC.
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| Chen Hubert C | 1 | — |
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in VKTX insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
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