If your broker had indicated this and he is from Goldman - I know that you want a second opinion. Even with this, you do not feel that you are sure and need more confirmation. May be your broker is suspect. Maybe you lack trust. Do you not trust him or is he a shark in sheep's clothing telling you to buy some and indicating that the markets will be sanguine continuously? Remember, the purpose of any business including the brokerage business is to make money. The purpose of any job - is to make money. Think about this.
By the way, the bar for Regeneron will be lifted much higher than it can jump as this deterioration has manifested itself from tech. stocks into med. stocks.