InsiderFlow

REGN

Regeneron Pharmaceuticals, Inc.$739.29-5.09 (-0.68%)
Prev Close$744.44·MCap$77.87B·P/E17.91·Vol175.5K·Yield0.00%

Buys (12M)

0

$0.00

Sells (12M)

23

$279.32M

Net Activity

Net Seller

$279.32M

Active Insiders

13

last 12 mo

Over the past 12 months, insider activity at Regeneron Pharmaceuticals, Inc. (REGN) has been exclusively selling, with 0 insider purchases totaling $0.00 and 23 insider sales totaling $279.32M. The most recent insider transaction was by RYAN ARTHUR F (director), who sold $52.6K worth of shares on Mar 3, 2026. Regeneron Pharmaceuticals, Inc. operates in the Healthcare sector, within the Biotechnology industry, with a market cap of $77.87B.

REGN Insider Trading Activity

DateInsiderTypeValue
Mar 3, 2026 RYAN ARTHUR FSell$52.6K
Feb 19, 2026 Zoghbi Huda YSell$1.28M
Feb 11, 2026 Pitofsky JasonSell$1.59M
Feb 11, 2026 RYAN ARTHUR FSell$70.0K
Jan 8, 2026 Bassler Bonnie LSell$1.20M
Jan 5, 2026 YANCOPOULOS GEORGESell$22.06M
Dec 31, 2025 SING GEORGE LSell$4.79M
Dec 11, 2025 McCourt MarionSell$716.2K
Dec 11, 2025 MURPHY ANDREW JSell$2.97M
Dec 11, 2025 SCHLEIFER LEONARD SSell$108.84M
Dec 11, 2025 Van Plew Daniel PSell$1.79M
Dec 11, 2025 YANCOPOULOS GEORGESell$92.51M
Dec 9, 2025 Fenimore Christopher R.Sell$707.2K
Dec 9, 2025 LAROSA JOSEPH JSell$995.3K
Dec 9, 2025 McCourt MarionSell$952.5K
Dec 9, 2025 MURPHY ANDREW JSell$1.21M
Dec 9, 2025 Pitofsky JasonSell$705.1K
Dec 9, 2025 Van Plew Daniel PSell$1.36M
Nov 24, 2025 Bassler Bonnie LSell$570.0K
Nov 24, 2025 LAROSA JOSEPH JSell$9.35M
Nov 10, 2025 Pitofsky JasonSell$280.8K
Oct 31, 2025 MURPHY ANDREW JSell$21.08M
Oct 31, 2025 POON CHRISTINE ASell$4.25M
Nov 5, 2024 McCourt MarionSell$844.6K
Oct 3, 2024 McCourt MarionSell$1.05M
Oct 3, 2024 RYAN ARTHUR FSell$104.9K
Sep 5, 2024 McCourt MarionSell$1.18M
Sep 5, 2024 RYAN ARTHUR FSell$117.9K
Aug 29, 2024 Fenimore Christopher R.Sell$6.85M
Aug 19, 2024 Bassler Bonnie LSell$884.5K
Aug 19, 2024 POON CHRISTINE ASell$12.55M
Aug 15, 2024 MURPHY ANDREW JSell$7.34M
Aug 12, 2024 STAHL NEILSell$5.64M
Aug 7, 2024 Pitofsky JasonSell$521.1K
Aug 5, 2024 Bassler Bonnie LSell$842.9K
Aug 5, 2024 McCourt MarionSell$1.21M
Aug 5, 2024 RYAN ARTHUR FSell$108.6K
Jul 12, 2024 LAROSA JOSEPH JSell$2.03M
Jul 2, 2024 McCourt MarionSell$1.19M
Jul 2, 2024 RYAN ARTHUR FSell$105.9K
Jun 25, 2024 Bassler Bonnie LSell$802.9K
Jun 17, 2024 BROWN MICHAEL SSell$1.60M
Jun 13, 2024 SCHLEIFER LEONARD SSell$25.61M
Jun 10, 2024 SCHLEIFER LEONARD SSell$798.8K
Jun 7, 2024 Bassler Bonnie LSell$836.1K
Jun 5, 2024 McCourt MarionSell$1.12M
Jun 5, 2024 RYAN ARTHUR FSell$99.4K
May 29, 2024 BROWN MICHAEL SSell$1.14M
May 22, 2024 LAROSA JOSEPH JSell$1.86M
May 17, 2024 SCHLEIFER LEONARD SSell$22.36M
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REGN Insider Buying Activity

The following table shows recent insider purchases of Regeneron Pharmaceuticals, Inc. (REGN) stock reported via SEC Form 4 filings.

No insider buying activity found for REGN in the last 12 months.

REGN Insider Selling Activity

The following table shows recent insider sales of Regeneron Pharmaceuticals, Inc. (REGN) stock reported via SEC Form 4 filings.

DateInsiderTypeValue
Mar 3, 2026 RYAN ARTHUR FSell$52.6K
Feb 19, 2026 Zoghbi Huda YSell$1.28M
Feb 11, 2026 Pitofsky JasonSell$1.59M
Feb 11, 2026 RYAN ARTHUR FSell$70.0K
Jan 8, 2026 Bassler Bonnie LSell$1.20M
Jan 5, 2026 YANCOPOULOS GEORGESell$22.06M
Dec 31, 2025 SING GEORGE LSell$4.79M
Dec 11, 2025 McCourt MarionSell$716.2K
Dec 11, 2025 MURPHY ANDREW JSell$2.97M
Dec 11, 2025 SCHLEIFER LEONARD SSell$108.84M
Dec 11, 2025 Van Plew Daniel PSell$1.79M
Dec 11, 2025 YANCOPOULOS GEORGESell$92.51M
Dec 9, 2025 Fenimore Christopher R.Sell$707.2K
Dec 9, 2025 LAROSA JOSEPH JSell$995.3K
Dec 9, 2025 McCourt MarionSell$952.5K
Dec 9, 2025 MURPHY ANDREW JSell$1.21M
Dec 9, 2025 Pitofsky JasonSell$705.1K
Dec 9, 2025 Van Plew Daniel PSell$1.36M
Nov 24, 2025 Bassler Bonnie LSell$570.0K
Nov 24, 2025 LAROSA JOSEPH JSell$9.35M
Nov 10, 2025 Pitofsky JasonSell$280.8K
Oct 31, 2025 MURPHY ANDREW JSell$21.08M
Oct 31, 2025 POON CHRISTINE ASell$4.25M
Nov 5, 2024 McCourt MarionSell$844.6K
Oct 3, 2024 McCourt MarionSell$1.05M
Oct 3, 2024 RYAN ARTHUR FSell$104.9K
Sep 5, 2024 McCourt MarionSell$1.18M
Sep 5, 2024 RYAN ARTHUR FSell$117.9K
Aug 29, 2024 Fenimore Christopher R.Sell$6.85M
Aug 19, 2024 Bassler Bonnie LSell$884.5K
Aug 19, 2024 POON CHRISTINE ASell$12.55M
Aug 15, 2024 MURPHY ANDREW JSell$7.34M
Aug 12, 2024 STAHL NEILSell$5.64M
Aug 7, 2024 Pitofsky JasonSell$521.1K
Aug 5, 2024 Bassler Bonnie LSell$842.9K
Aug 5, 2024 McCourt MarionSell$1.21M
Aug 5, 2024 RYAN ARTHUR FSell$108.6K
Jul 12, 2024 LAROSA JOSEPH JSell$2.03M
Jul 2, 2024 McCourt MarionSell$1.19M
Jul 2, 2024 RYAN ARTHUR FSell$105.9K
Jun 25, 2024 Bassler Bonnie LSell$802.9K
Jun 17, 2024 BROWN MICHAEL SSell$1.60M
Jun 13, 2024 SCHLEIFER LEONARD SSell$25.61M
Jun 10, 2024 SCHLEIFER LEONARD SSell$798.8K
Jun 7, 2024 Bassler Bonnie LSell$836.1K
Jun 5, 2024 McCourt MarionSell$1.12M
Jun 5, 2024 RYAN ARTHUR FSell$99.4K
May 29, 2024 BROWN MICHAEL SSell$1.14M
May 22, 2024 LAROSA JOSEPH JSell$1.86M
May 17, 2024 SCHLEIFER LEONARD SSell$22.36M

REGN Insiders

RYAN ARTHUR F

Director

Sold $9.41M
39 tradesLast: Mar 3, 2026
Zoghbi Huda Y

Director

Sold $5.14M
5 tradesLast: Feb 19, 2026
Pitofsky Jason

VP Controller

Sold $3.09M
4 tradesLast: Feb 11, 2026
Bassler Bonnie L

Director

Sold $19.18M
21 tradesLast: Jan 8, 2026
YANCOPOULOS GEORGE

President and Chief Scientific

Sold $345.04M
9 tradesLast: Jan 5, 2026
SING GEORGE L

Director

Sold $30.41M
11 tradesLast: Dec 31, 2025
Van Plew Daniel P

EVP & General Mgr, Industrial

Sold $48.96M
10 tradesLast: Dec 11, 2025
SCHLEIFER LEONARD S

President & CEO

Sold $342.76M
9 tradesLast: Dec 11, 2025
McCourt Marion

EVP Commercial

Sold $31.43M
49 tradesLast: Dec 11, 2025
MURPHY ANDREW J

EVP Research

Sold $67.60M
13 tradesLast: Dec 11, 2025
Fenimore Christopher R.

SVP Finance & CFO

Sold $24.67M
9 tradesLast: Dec 9, 2025
LAROSA JOSEPH J

EVP General Counsel and Secret

Sold $28.59M
11 tradesLast: Dec 9, 2025
POON CHRISTINE A

Director

Sold $46.45M
5 tradesLast: Oct 31, 2025
STAHL NEIL

EVP Research and Development

Sold $46.75M
5 tradesLast: Aug 12, 2024
BROWN MICHAEL S

Director

Sold $26.58M
14 tradesLast: Jun 17, 2024
GOLDSTEIN JOSEPH L

Director

Sold $9.79M
5 tradesLast: Jan 25, 2024
Landry Robert E

EVP Finance CFO

Sold $9.15M
15 tradesLast: Aug 25, 2023
COLES N ANTHONY

Director

Sold $20.62M
5 tradesLast: Dec 30, 2022
Tessier-Lavigne Marc

Director

Sold $31.71M
5 tradesLast: Oct 3, 2022
VAGELOS P ROY

Director

Sold $26.53M
2 tradesLast: Apr 1, 2022