REGNNasdaq · Pharmaceutical Preparations

REGENERON PHARMACEUTICALS, INC.

Alert me on REGN

Insider buys, 6 months

Congress trades, 6 months

Signals, 6 months

Six months

After each filing

Oct 16 Sale MURPHY ANDREW J Insider

1 week

+1.8%S&P −0.4%

1 month

Result in16 trading days

3 months

Result in58 trading days

6 months

Result in121 trading days

Sep 4 Sale Guarini Kathryn Insider

1 week

−4.1%S&P −1.2%

1 month

−10.8%S&P +1.4%

3 months

Result in29 trading days

6 months

Result in92 trading days

Sep 4 Sale McCourt Marion Insider

1 week

−4.1%S&P −1.2%

1 month

−10.8%S&P +1.4%

3 months

Result in29 trading days

6 months

Result in92 trading days

Aug 13 Sale Guarini Kathryn Insider

1 week

+2.7%S&P −2.0%

1 month

−1.4%S&P −2.2%

3 months

Result in13 trading days

6 months

Result in76 trading days

Aug 13 Sale Zoghbi Huda Y Insider

1 week

+2.7%S&P −2.0%

1 month

−1.4%S&P −2.2%

3 months

Result in13 trading days

6 months

Result in76 trading days

Show all 29

Jul 21 Buy Sen. Alan Armstrong Senate

1 week

+6.8%S&P −2.4%

1 month

+27.1%S&P +2.0%

3 months

+24.1%S&P +3.2%

6 months

Result in60 trading days

Jul 8 Sale RYAN ARTHUR F Insider

1 week

+0.2%S&P +1.3%

1 month

+16.5%S&P +3.1%

3 months

+11.6%S&P +4.8%

6 months

Result in50 trading days

Jun 8 Sale Rep. Gilbert Cisneros House

1 week

−0.2%S&P +1.8%

1 month

+7.8%S&P +2.7%

3 months

+31.2%S&P +3.7%

6 months

Result in31 trading days

May 5 Sale RYAN ARTHUR F Insider

1 week

+3.0%S&P +2.0%

1 month

−10.3%S&P +4.6%

3 months

+9.6%S&P +6.6%

6 months

Result in7 trading days

Apr 4 Sale RYAN ARTHUR F Insider

1 week

−2.2%S&P +4.1%

1 month

−8.0%S&P +9.8%

3 months

−11.2%S&P +13.8%

6 months

−4.5%S&P +18.2%

Mar 12 Buy Rep. Julia Letlow House

1 week

−1.7%S&P −1.8%

1 month

+1.3%S&P +5.1%

3 months

−17.8%S&P +12.3%

6 months

+6.7%S&P +15.5%

Mar 4 Sale RYAN ARTHUR F Insider

1 week

−1.6%S&P −1.3%

1 month

−3.3%S&P −4.0%

3 months

−21.3%S&P +10.4%

6 months

+8.5%S&P +12.3%

Feb 24 Sale Zoghbi Huda Y Insider

1 week

−0.7%S&P −1.0%

1 month

−2.9%S&P −4.2%

3 months

−17.7%S&P +9.5%

6 months

+8.2%S&P +12.0%

Feb 12 Sale Pitofsky Jason Insider

1 week

−0.4%S&P +1.2%

1 month

−3.3%S&P −1.8%

3 months

−8.9%S&P +10.1%

6 months

+2.8%S&P +14.6%

Feb 12 Sale RYAN ARTHUR F Insider

1 week

−0.4%S&P +1.2%

1 month

−3.3%S&P −1.8%

3 months

−8.9%S&P +10.1%

6 months

+2.8%S&P +14.6%

Jan 9 Sale Bassler Bonnie L Insider

1 week

−8.0%S&P −0.3%

1 month

−5.2%S&P −0.3%

3 months

−6.2%S&P −0.9%

6 months

−17.4%S&P +8.9%

Dec 15, 2025 Buy Rep. Gilbert Cisneros House

1 week

+5.2%S&P +1.6%

1 month

−1.8%S&P +2.2%

3 months

−1.1%S&P −2.5%

6 months

−18.1%S&P +10.9%

Nov 25, 2025 Sale Bassler Bonnie L Insider

1 week

−8.1%S&P +1.3%

1 month

−0.3%S&P +2.6%

3 months

−0.6%S&P +1.9%

6 months

−21.7%S&P +12.7%

Nov 11, 2025 Sale Pitofsky Jason Insider

1 week

+7.5%S&P −3.4%

1 month

+10.8%S&P +0.9%

3 months

+16.3%S&P 0.0%

6 months

+5.9%S&P +10.2%

Nov 1, 2025 Sale POON CHRISTINE A Insider

1 week

+1.9%S&P −0.3%

1 month

+12.8%S&P +0.1%

3 months

+20.8%S&P +0.7%

6 months

+12.5%S&P +8.0%

Jun 9, 2025 Buy Rep. Rob Bresnahan House

1 week

−2.8%S&P −0.9%

1 month

+8.4%S&P +3.7%

3 months

+6.3%S&P +8.5%

6 months

+32.7%S&P +13.9%

May 24, 2025 Sale Rep. Byron Donalds House

1 week

−19.1%S&P +0.8%

1 month

−13.6%S&P +3.8%

3 months

−2.4%S&P +9.5%

6 months

+26.6%S&P +13.8%

May 14, 2025 Sale Rep. Julie Johnson House

1 week

+2.2%S&P −1.2%

1 month

−10.5%S&P +2.1%

3 months

−0.6%S&P +9.3%

6 months

+19.2%S&P +14.5%

May 8, 2025 Sale Rep. Jefferson Shreve House

1 week

+12.6%S&P +5.3%

1 month

−0.7%S&P +6.9%

3 months

+3.6%S&P +13.0%

6 months

+25.0%S&P +19.6%

May 8, 2025 Sale Rep. Rob Bresnahan House

1 week

+12.6%S&P +5.3%

1 month

−0.7%S&P +6.9%

3 months

+3.6%S&P +13.0%

6 months

+25.0%S&P +19.6%

Mar 27, 2025 Sale Rep. Rob Bresnahan House

1 week

−10.0%S&P −9.1%

1 month

−10.7%S&P −0.2%

3 months

−17.5%S&P +11.5%

6 months

−11.8%S&P +20.1%

Mar 12, 2025 Sale Rep. Julie Johnson House

1 week

−2.6%S&P +2.6%

1 month

−18.6%S&P −2.9%

3 months

−23.2%S&P +9.8%

6 months

−17.5%S&P +19.9%

Feb 12, 2025 Buy Rep. Julie Johnson House

1 week

+4.0%S&P −1.6%

1 month

+0.7%S&P −7.0%

3 months

−13.1%S&P −2.9%

6 months

−13.7%S&P +6.2%

Feb 10, 2025 Sale Rep. Josh Gottheimer House

1 week

+3.0%S&P +1.3%

1 month

+2.4%S&P −8.9%

3 months

−13.6%S&P −2.8%

6 months

−15.4%S&P +7.2%

Every purchase and sale on this ticker reported by a member of Congress or an insider, measured from the close of the first trading day after it became public to the close 1 week, 1 month, 3 months and 6 months later, each beside the S&P over the same days.

Filings for REGN

74 held · newest 574 held · newest 2

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Government contracts, last 12 months

Awards of $10M and up, from USAspending · context, not a signal

No contracts of $10M or more in the last 12 months.

Lobbying

Last four quarters

$610KQ4 2025

$640KQ1 2026

$630KQ2 2026

$590KQ3 2026

Down 6 percent from Q2 2026. Reported by the company to the Senate each quarter.Original report ↗

Read from LDA.gov between Sep 23, 2026 and Oct 21, 2026. Senate Office of Public Records cannot vouch for the data or analyses derived from these data after the data have been retrieved from LDA.gov.