REGN

Healthcare

Regeneron Pharmaceuticals, Inc.

$743.51-3.10 (-0.41%)

Prev Close

$746.61

Open

$754.55

High

$758.98

Low

$741.89

Volume

292.9K

Market Cap

$77.57B

P/E

17.89

Div Yield

0.00%

Over the past 12 months, insider activity at Regeneron Pharmaceuticals, Inc. (REGN) has been exclusively selling, with 0 insider purchases totaling $0.00 and 25 insider sales totaling $303.86M. 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 $77.57B.

Buys (12M)

$0.00

Sells (12M)

$303.86M

Net Activity

Net Seller

$303.86M

Active Insiders

last 12 mo

REGN Price Chart

REGN Insider Trading Activity

Date	Insider	Role	Type	Shares	Avg Price	Value	Shares After
Mar 3, 2026↗	RYAN ARTHUR F	director	Sell	67	$784.41	$52.6K	17,796
Feb 23, 2026↗	Zoghbi Huda Y	director	Sell	1,638	$781.32	$1.28M	3,292
Feb 19, 2026↗	Zoghbi Huda Y	Director	Sell	1,638	$781.32	$1.28M	0
Feb 11, 2026↗	Pitofsky Jason	officer: SVP Controller	Sell	2,036	$778.52	$1.59M	6,288
Feb 11, 2026↗	RYAN ARTHUR F	director	Sell	90	$778.16	$70.0K	17,892
Jan 8, 2026↗	Bassler Bonnie L	Director	Sell	3,000	$800.00	$2.40M	1,703
Jan 5, 2026↗	SCHLEIFER LEONARD S	Bd. Co-Chair, President & CEO	Sell	28,570	$772.09	$22.06M	0
Jan 5, 2026↗	YANCOPOULOS GEORGE	Bd. Co-Chair, President & CSO	Sell	28,570	$772.09	$22.06M	0
Dec 31, 2025↗	SING GEORGE L	Director	Sell	6,188	$774.03	$4.79M	0
Dec 11, 2025↗	McCourt Marion	EVP Commercial	Sell	1,021	$701.51	$716.2K	0
Dec 11, 2025↗	MURPHY ANDREW J	EVP Research	Sell	4,229	$701.51	$2.97M	0
Dec 11, 2025↗	SCHLEIFER LEONARD S	Bd. Co-Chair, President & CEO	Sell	155,145	$701.51	$108.84M	0
Dec 11, 2025↗	Van Plew Daniel P	EVP & General Mgr, Industrial	Sell	2,552	$701.51	$1.79M	0
Dec 11, 2025↗	YANCOPOULOS GEORGE	Bd. Co-Chair, President & CSO	Sell	131,874	$701.51	$92.51M	0
Dec 9, 2025↗	Fenimore Christopher R.	EVP Finance CFO	Sell	992	$712.94	$707.2K	0
Dec 9, 2025↗	LAROSA JOSEPH J	EVP General Counsel and Secret	Sell	1,396	$712.94	$995.3K	0
Dec 9, 2025↗	McCourt Marion	EVP Commercial	Sell	1,336	$712.94	$952.5K	0
Dec 9, 2025↗	MURPHY ANDREW J	EVP Research	Sell	1,699	$712.94	$1.21M	0
Dec 9, 2025↗	Pitofsky Jason	VP Controller	Sell	989	$712.94	$705.1K	0
Dec 9, 2025↗	Van Plew Daniel P	EVP & General Mgr, Industrial	Sell	1,906	$712.94	$1.36M	0
Nov 24, 2025↗	Bassler Bonnie L	Director	Sell	760	$750.00	$570.0K	0
Nov 24, 2025↗	LAROSA JOSEPH J	EVP General Counsel and Secret	Sell	12,686	$736.77	$9.35M	0
Nov 10, 2025↗	Pitofsky Jason	VP Controller	Sell	431	$651.43	$280.8K	0
Oct 31, 2025↗	MURPHY ANDREW J	EVP Research	Sell	32,490	$648.82	$21.08M	0
Oct 31, 2025↗	POON CHRISTINE A	Director	Sell	6,500	$654.27	$4.25M	0

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.

Date	Insider	Role	Type	Shares	Avg Price	Value	Shares After
Mar 3, 2026↗	RYAN ARTHUR F	director	Sell	67	$784.41	$52.6K	17,796
Feb 23, 2026↗	Zoghbi Huda Y	director	Sell	1,638	$781.32	$1.28M	3,292
Feb 19, 2026↗	Zoghbi Huda Y	Director	Sell	1,638	$781.32	$1.28M	0
Feb 11, 2026↗	Pitofsky Jason	officer: SVP Controller	Sell	2,036	$778.52	$1.59M	6,288
Feb 11, 2026↗	RYAN ARTHUR F	director	Sell	90	$778.16	$70.0K	17,892
Jan 8, 2026↗	Bassler Bonnie L	Director	Sell	3,000	$800.00	$2.40M	1,703
Jan 5, 2026↗	SCHLEIFER LEONARD S	Bd. Co-Chair, President & CEO	Sell	28,570	$772.09	$22.06M	0
Jan 5, 2026↗	YANCOPOULOS GEORGE	Bd. Co-Chair, President & CSO	Sell	28,570	$772.09	$22.06M	0
Dec 31, 2025↗	SING GEORGE L	Director	Sell	6,188	$774.03	$4.79M	0
Dec 11, 2025↗	McCourt Marion	EVP Commercial	Sell	1,021	$701.51	$716.2K	0
Dec 11, 2025↗	MURPHY ANDREW J	EVP Research	Sell	4,229	$701.51	$2.97M	0
Dec 11, 2025↗	SCHLEIFER LEONARD S	Bd. Co-Chair, President & CEO	Sell	155,145	$701.51	$108.84M	0
Dec 11, 2025↗	Van Plew Daniel P	EVP & General Mgr, Industrial	Sell	2,552	$701.51	$1.79M	0
Dec 11, 2025↗	YANCOPOULOS GEORGE	Bd. Co-Chair, President & CSO	Sell	131,874	$701.51	$92.51M	0
Dec 9, 2025↗	Fenimore Christopher R.	EVP Finance CFO	Sell	992	$712.94	$707.2K	0
Dec 9, 2025↗	LAROSA JOSEPH J	EVP General Counsel and Secret	Sell	1,396	$712.94	$995.3K	0
Dec 9, 2025↗	McCourt Marion	EVP Commercial	Sell	1,336	$712.94	$952.5K	0
Dec 9, 2025↗	MURPHY ANDREW J	EVP Research	Sell	1,699	$712.94	$1.21M	0
Dec 9, 2025↗	Pitofsky Jason	VP Controller	Sell	989	$712.94	$705.1K	0
Dec 9, 2025↗	Van Plew Daniel P	EVP & General Mgr, Industrial	Sell	1,906	$712.94	$1.36M	0
Nov 24, 2025↗	Bassler Bonnie L	Director	Sell	760	$750.00	$570.0K	0
Nov 24, 2025↗	LAROSA JOSEPH J	EVP General Counsel and Secret	Sell	12,686	$736.77	$9.35M	0
Nov 10, 2025↗	Pitofsky Jason	VP Controller	Sell	431	$651.43	$280.8K	0
Oct 31, 2025↗	MURPHY ANDREW J	EVP Research	Sell	32,490	$648.82	$21.08M	0
Oct 31, 2025↗	POON CHRISTINE A	Director	Sell	6,500	$654.27	$4.25M	0