---
title: "REGN.US (REGN.US) — Related News"
type: "Symbol"
locale: "en"
url: "https://longbridge.com/en/quote/REGN.US/news.md"
symbol: "REGN.US"
name: "REGN.US"
parent: "https://longbridge.com/en/quote/REGN.US.md"
datetime: "2026-05-19T14:09:31.361Z"
locales:
  - [en](https://longbridge.com/en/quote/REGN.US/news.md)
  - [zh-CN](https://longbridge.com/zh-CN/quote/REGN.US/news.md)
  - [zh-HK](https://longbridge.com/zh-HK/quote/REGN.US/news.md)
---

# REGN.US (REGN.US) — Related News

### [Pre-market trend | Regeneron Pharma (REGN) plummeted nearly 10% on May 18, is short interest accelerating?](https://longbridge.com/en/news/286816984.md)
*2026-05-19T13:00:00.000Z*
> Yesterday, Regeneron Pharma's stock price plummeted 9.82% to $629.68, with a large bearish candlestick engulfing the gai

### [Regeneron signs $2.32bn deal with Parabilis for Helicon conjugates](https://longbridge.com/en/news/286890035.md)
*2026-05-19T09:16:55.000Z*
> A required part of this site couldn’t load. This may be due to a browser extension, network issues, or browser settings.

### [18:24 ETRegeneron Pharmaceuticals Investigation Initiated: Levi & Korsinsky Investigates the Officers and Directors of Regeneron Pharmaceuticals (REGN)](https://longbridge.com/en/news/286825264.md)
*2026-05-18T22:25:39.000Z*
> Levi & Korsinsky is investigating Regeneron Pharmaceuticals (REGN) following significant stock losses after the failure 

### [U.S. Stock Market: S&P 500 Index Closes Slightly Lower as Investors Interpret Complex Signals from U.S.-Iran Talks](https://longbridge.com/en/news/286824439.md)
*2026-05-18T22:10:28.000Z*
> The U.S. stock market experienced turbulence, with the S&P 500 index slightly down by 0.1%, closing at 7403.05 points. O

### [Health Care Up on Rotation Into Lagging Sectors — Health Care Roundup](https://longbridge.com/en/news/286822335.md)
*2026-05-18T21:34:46.000Z*
> Health-care companies saw gains as traders shifted focus to underperforming sectors. However, Regeneron Pharmaceuticals 

### [Equity Markets Mixed as Trump Aborts Plan to Attack Iran](https://longbridge.com/en/news/286821213.md)
*2026-05-18T21:03:00.000Z*
> US equity markets closed mixed as President Trump postponed a planned military attack on Iran. The Nasdaq fell 0.5%, whi

### [](https://longbridge.com/en/news/286818680.md)
*2026-05-18T20:59:39.000Z*
> The Nasdaq Biotechnology Index closed down 1.85%. Among its components, Gossamer Bio fell 43.29%, Design Therapeutics dr