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R

Regeneron Pharmaceuticals REGN · USD

Health Care · Biotechnology · US listing · 🇺🇸 United States

S&P 500Nasdaq-100

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919.96

+1.73%

Close of 9 Nov 2026, in USD

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Reference data, closing prices and charts across 45,000 companies, plus crypto, commodities and currencies.

Largest shareholders

As filed, so dates differ, and a group and its funds can both appear.

HolderSharesStakeChangeFiled
BLACKROCK, INC.8.9m8.46%+206.5k31 Mar 2026
VANGUARD CAPITAL MANAGEMENT LLC6.7m6.29%+6.7m31 Mar 2026
STATE STREET CORP4.7m4.41%+3.7k31 Mar 2026
DODGE & COX4.5m4.22%−138.1k31 Mar 2026
JPMORGAN CHASE & CO4.3m4.08%+371.6k31 Mar 2026
FRANKLIN RESOURCES INC2.7m2.57%+162.1k31 Mar 2026
GEODE CAPITAL MANAGEMENT, LLC2.6m2.47%+88.2k31 Mar 2026
INVESCO LTD.2.2m2.06%−139.8k31 Mar 2026
PRICE T ROWE ASSOCIATES INC /MD/2.2m2.06%+227.7k31 Mar 2026
NUVEEN, LLC2.1m1.95%+54.5k31 Mar 2026
LOOMIS SAYLES & CO L P1.9m1.81%−22k31 Mar 2026
WELLINGTON MANAGEMENT GROUP LLP1.8m1.74%+1.2m31 Mar 2026
VANGUARD PORTFOLIO MANAGEMENT LLC1.7m1.63%+1.7m31 Mar 2026
FMR LLC1.5m1.44%−801.4k31 Mar 2026
CAPITAL WORLD INVESTORS1.4m1.34%+21k31 Mar 2026

Insider trades

Purchases and sales by directors and officers, as filed with the regulator

DateWhoTypeSharesPriceValue
2 Mar 2026 ↗RYAN ARTHUR FDirectorSale67784.41$52,555
19 Feb 2026 ↗Zoghbi Huda YDirectorSale1.6k781.33$1.3m

Short interest

Shares sold short, 15 Oct 2026. US exchange data.

2.1m

-0.7% on the period before. 3.2 days to cover.

Short volume

Share of the day's trading sold short, 4 Nov 2026

30.8%

Last 60 trading days.

Failed deliveries

Shares not delivered on settlement, from the SEC

  • 17 Sept 20268 shares
  • 9 Sept 2026341 shares
  • 3 Sept 20261,556 shares
  • 20 Aug 202621 shares
  • 18 Aug 20262,016 shares

Sources and methodology

Data on this tab
Our data supplier
Chart on the Overview
TradingView

Nothing here is investment advice. Prices can be delayed or wrong, so check with the exchange before relying on them. Data for this page. How we cover markets.