Form4insider filings, from the source

Insider · CIK 0001622297

Hubert C Chen

Files at: VKTX, PFNX. On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted

Reported trades — common stock

No reported common-stock activity in this period.

Reported trades — derivatives (options, RSUs, warrants)

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Jun 1, 2026 AForm 4 →Jun 3, 7:44 pm EDTViking Therapeutics, Inc.VKTX190,000——190,000—
Feb 1, 2018 AForm 4 →Feb 2, 8:06 pm ESTPfenex Inc.PFNX78,407——78,407—
Mar 1, 2017 AForm 4 →Mar 2, 5:11 pm ESTPfenex Inc.PFNX85,000——85,000—
Feb 1, 2016 AForm 4 →Feb 1, 8:40 pm ESTPfenex Inc.PFNX88,137——88,137—
Feb 2, 2015 AForm 4 →Feb 3, 7:59 pm ESTPfenex Inc.PFNX6,834——6,834—