REGN Insider Trading

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Insider Trading History
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About

Insider Ownership Percentage: 6.97%

Insider Buying (Last 12 Months): $0.00

Insider Selling (Last 12 Months): $11,130,903.58

Regeneron Pharmaceuticals Insider Trading History Chart

Regeneron Pharmaceuticals Share Price & Price History

^$960.14

▲ +32.248 (3.48%)

As of 11/2/2026 09:56 AM ET

Days: 30 | 90 | 365

Regeneron Pharmaceuticals Insider Trading History

Transaction Date	Insider Name	Title	Buy/Sell	Number of Shares	Average Share Price	Total Transaction	Shares Held After Transaction
10/14/2026	Andrew J. Murphy	Insider	Sell	4,147	$772.70	$3,204,386.90	47,833
9/3/2026	Marion Mccourt	EVP	Sell	1,131	$857.39	$969,708.09	12,003
9/2/2026	Kathryn Guarini	Director	Sell	400	$850.00	$340,000.00	603
9/2/2026	Marion Mccourt	EVP	Sell	1,215	$850.00	$1,032,750.00	13,134
8/10/2026	Huda Y. Zoghbi	Director	Sell	800	$800.00	$640,000.00	1,703
8/10/2026	Kathryn Guarini	Director	Sell	400	$800.00	$320,000.00	603
7/2/2026	Arthur F. Ryan	Director	Sell	200	$650.15	$130,030.00	17,303
5/1/2026	Arthur F. Ryan	Director	Sell	100	$705.24	$70,524.00	17,503
2/19/2026	Huda Y. Zoghbi	Director	Sell	1,638	$781.33	$1,279,818.54	1,703
2/9/2026	Arthur F. Ryan	Director	Sell	100	$778.53	$77,853.00	17,803
2/9/2026	Jason Pitofsky	SVP	Sell	2,036	$778.52	$1,585,066.72	4,272
1/7/2026	Bonnie L. Bassler	Director	Sell	1,500	$800.00	$1,200,000.00	1,703
11/7/2025	Jason Pitofsky	VP	Sell	431	$651.43	$280,766.33	4,233
10/29/2025	Christine A. Poon	Director	Sell	6,500	$654.27	$4,252,755.00	2,352
8/28/2024	Christopher R. Fenimore	CFO	Sell	5,680	$1,205.33	$6,846,274.40	15,305
8/7/2024	Jason Pitofsky	VP	Sell	487	$1,070.00	$521,090.00	4,204
7/11/2024	Joseph J. Larosa	EVP	Sell	1,866	$1,088.95	$2,031,980.70	37,937
7/1/2024	Arthur F. Ryan	Director	Sell	100	$1,059.24	$105,924.00	17,882
7/1/2024	Marion Mccourt	EVP	Sell	1,137	$1,047.11	$1,190,564.07	12,931
6/24/2024	Bonnie L. Bassler	Director	Sell	756	$1,062.00	$802,872.00	1,382
6/14/2024	Michael S. Brown	Director	Sell	1,535	$1,040.00	$1,596,400.00	1,382
6/11/2024	Leonard S. Schleifer	CEO	Sell	9,064	$1,015.43	$9,203,857.52	55,134
6/6/2024	Leonard S. Schleifer	CEO	Sell	787	$1,015.02	$798,820.74	64,198
6/5/2024	Bonnie L. Bassler	Director	Sell	827	$1,011.00	$836,097.00	1,382
5/28/2024	Michael S. Brown	Director	Sell	1,172	$974.86	$1,142,535.92	1,382
5/17/2024	Leonard S. Schleifer	CEO	Sell	22,830	$979.23	$22,355,820.90	466,877
5/14/2024	Leonard S. Schleifer	CEO	Sell	25,000	$979.25	$24,481,250.00	408,200
3/14/2024	Andrew J. Murphy	EVP	Sell	5,783	$956.47	$5,531,266.01	48,306
3/1/2024	Arthur F. Ryan	Director	Sell	100	$982.05	$98,205.00	18,282
3/1/2024	Marion Mccourt	EVP	Sell	358	$967.50	$346,365.00	13,431
2/26/2024	Bonnie L. Bassler	Director	Sell	854	$979.25	$836,279.50	1,382
2/22/2024	Joseph J. Larosa	EVP	Sell	1,000	$967.65	$967,650.00	37,543
2/7/2024	Joseph J. Larosa	EVP	Sell	1,000	$950.00	$950,000.00	38,543
2/5/2024	Marion Mccourt	EVP	Sell	1,000	$934.71	$934,710.00	13,789
2/1/2024	Arthur F. Ryan	Director	Sell	100	$954.22	$95,422.00	18,382
1/30/2024	Bonnie L. Bassler	Director	Sell	827	$959.00	$793,093.00	1,382
1/23/2024	Joseph L. Goldstein	Director	Sell	2,707	$950.00	$2,571,650.00	6,382
1/2/2024	George D. Yancopoulos	Insider	Sell	16,848	$900.00	$15,163,200.00	180,000
12/27/2023	Christopher R. Fenimore	SVP	Sell	2,448	$856.71	$2,097,226.08	14,372
12/27/2023	Michael S. Brown	Director	Sell	2,049	$898.00	$1,840,002.00	1,247
12/21/2023	Christopher R. Fenimore	SVP	Sell	1,680	$844.01	$1,417,936.80	17,070
12/1/2023	Arthur F. Ryan	Director	Sell	100	$817.30	$81,730.00	18,447
11/7/2023	Arthur F. Ryan	Director	Sell	100	$827.90	$82,790.00	18,547

SEC Filings (Institutional Ownership Changes) for Regeneron Pharmaceuticals (NASDAQ:REGN)

83.31% of Regeneron Pharmaceuticals stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

Regeneron Pharmaceuticals Institutional Trading History

Reporting Date	Hedge Fund	Shares Held	Market Value	% of Portfolio	Quarterly Change in Shares	Ownership in Company
10/31/2026	Kestra Private Wealth Services LLC	870	$0.66M	0.0%	-7.8%	0.001%
10/31/2026	Boston Trust Walden Corp	10,667	$8.09M	0.1%	+794.1%	0.010%
10/31/2026	Chicago Partners Investment Group LLC	2,865	$2.31M	0.0%	+29.7%	0.003%
10/31/2026	Covestor Ltd	171	$0.13M	0.1%	+31.5%	0.000%
10/30/2026	Compass Financial Management LLC	3,007	$2.28M	0.2%	+4,526.2%	0.003%
10/30/2026	Pzena Investment Management LLC	409	$0.31M	0.0%	N/A	0.000%
10/30/2026	Rakuten Investment Management Inc.	26,693	$20.03M	0.0%	+8.6%	0.026%
10/30/2026	AIA Group Ltd	5,482	$4.16M	0.1%	-37.2%	0.005%
10/30/2026	Third View Private Wealth LLC	7,892	$5.98M	0.7%	-1.7%	0.008%
10/30/2026	Provenance Wealth Advisors LLC	619	$0.47M	0.0%	+208.0%	0.001%
10/30/2026	Putney Financial Group LLC	48	$36K	0.0%	N/A	0.000%
10/30/2026	Oregon Public Employees Retirement Fund	12,053	$9.14M	0.1%	-2.1%	0.012%
10/30/2026	Stiles Financial Services Inc	3,276	$2.48M	0.6%	-8.1%	0.003%
10/30/2026	Factory Mutual Insurance Co.	28,232	$21.41M	0.2%	+11.1%	0.027%
10/30/2026	Eads & Heald Wealth Management	534	$0.41M	0.2%	+54.8%	0.001%
10/30/2026	GraniteShares Advisors LLC	964	$0.73M	0.5%	-13.9%	0.001%
10/30/2026	XML Financial LLC	679	$0.52M	0.0%	-44.1%	0.001%
10/29/2026	Sicart Associates LLC	6,822	$5.39M	1.3%	-1.3%	0.007%
10/29/2026	Welch Group LLC	809	$0.61M	0.0%	-4.7%	0.001%
10/29/2026	Trek Financial LLC	291	$0.22M	0.0%	N/A	0.000%
10/29/2026	Traynor Capital Management Inc.	2,739	$2.08M	0.1%	-8.9%	0.003%
10/29/2026	Bank Julius Baer & Co. Ltd Zurich	1,904	$1.43M	0.0%	+165.2%	0.002%
10/29/2026	Greenleaf Trust	1,314	$1M	0.0%	-2.9%	0.001%
10/29/2026	Columbia Bank	2,563	$1.94M	0.4%	+12.9%	0.002%
10/29/2026	Sumitomo Mitsui Trust Group Inc.	278,120	$210.89M	0.1%	-1.4%	0.270%
10/29/2026	Mirae Asset Global Investments Co. Ltd.	126,572	$95.98M	0.2%	N/A	0.123%
10/29/2026	Profund Advisors LLC	10,191	$7.73M	0.2%	-2.4%	0.010%
10/29/2026	ProShare Advisors LLC	117,034	$88.74M	0.1%	-1.9%	0.114%
10/29/2026	Vise Technologies Inc.	2,622	$1.99M	0.0%	+22.4%	0.003%
10/29/2026	Grandfield & Dodd LLC	37,098	$28.13M	1.5%	+1.3%	0.036%
10/29/2026	Moss Adams Wealth Advisors LLC	1,422	$1.08M	0.1%	-6.0%	0.001%
10/29/2026	Summit Global Investments	7,670	$5.82M	0.3%	+2.2%	0.007%
10/29/2026	Invera Wealth Advisors LLC	787	$0.60M	0.3%	+59.6%	0.001%
10/29/2026	MGO One Seven LLC	1,389	$1.05M	0.0%	+49.0%	0.001%
10/29/2026	Americana Partners LLC	403	$0.31M	0.0%	N/A	0.000%
10/29/2026	Aprio Wealth Management LLC	299	$0.23M	0.0%	N/A	0.000%
10/29/2026	Avestar Capital LLC	883	$0.67M	0.1%	+31.2%	0.001%
10/29/2026	Modera Wealth Management LLC	5,962	$4.52M	0.0%	-10.8%	0.006%
10/28/2026	International Assets Investment Management LLC	4,573	$3.47M	0.0%	+356.8%	0.004%
10/28/2026	Lebenthal Global Advisors LLC	361	$0.27M	0.0%	-32.1%	0.000%
10/28/2026	CHICAGO TRUST Co NA	511	$0.39M	0.1%	-9.1%	0.000%
10/28/2026	Glenview Trust Co	4,421	$3.35M	0.0%	+0.4%	0.004%
10/28/2026	Parcion Private Wealth LLC	1,589	$1.21M	0.1%	+55.5%	0.002%
10/28/2026	Soltis Investment Advisors LLC	1,210	$0.92M	0.0%	+49.4%	0.001%
10/28/2026	Choreo LLC	5,763	$4.37M	0.0%	+4.5%	0.006%
10/28/2026	Willner & Heller LLC	276	$0.21M	0.1%	N/A	0.000%
10/28/2026	Values Added Financial LLC	322	$0.24M	0.1%	N/A	0.000%
10/28/2026	China Universal Asset Management Co. Ltd.	21,862	$16.41M	0.9%	+12.1%	0.021%
10/28/2026	Childress Capital Advisors LLC	599	$0.45M	0.1%	+14.5%	0.001%
10/28/2026	D.A. Davidson & CO.	528	$0.40M	0.0%	-4.7%	0.001%
10/28/2026	Motley Fool Asset Management LLC	7,012	$5.32M	0.2%	N/A	0.000%
10/28/2026	North Dakota State Investment Board	3,077	$2.33M	0.1%	+2.0%	0.000%
10/28/2026	VestGen Advisors LLC	656	$0.50M	0.0%	N/A	0.000%
10/27/2026	Conning Inc.	414	$0.31M	0.0%	-4.2%	0.000%
10/27/2026	Smith Group Asset Management LLC	40,114	$30.42M	2.0%	N/A	0.039%
10/27/2026	WestEnd Advisors LLC	27,947	$21.19M	0.5%	+43.9%	0.027%
10/27/2026	Mcdonald Capital Investors Inc. CA	172,649	$130.92M	10.7%	-10.6%	0.168%
10/27/2026	Busey Bank	1,014	$0.77M	0.0%	-1.6%	0.001%
10/27/2026	Generali Asset Management SPA SGR	6,779	$5.14M	0.1%	-11.8%	0.007%
10/27/2026	Asset Management One Co. Ltd.	51,441	$39.01M	0.1%	+0.1%	0.050%
10/27/2026	SYM FINANCIAL Corp	718	$0.54M	0.0%	+25.1%	0.001%
10/27/2026	Oakworth Capital Inc.	70	$53K	0.0%	+25.0%	0.000%
10/27/2026	Independence Bank of Kentucky	317	$0.24M	0.0%	-4.5%	0.000%
10/27/2026	Ashton Thomas Securities LLC	1,706	$1.29M	0.1%	+24.6%	0.002%
10/27/2026	Schwartz Investment Counsel Inc.	700	$0.53M	0.0%	-22.2%	0.001%
10/26/2026	Penobscot Investment Management Company Inc.	320	$0.24M	0.0%	N/A	0.000%
10/26/2026	Oppenheimer & Co. Inc.	22,555	$17.10M	0.2%	+1.9%	0.022%
10/26/2026	Park Avenue Securities LLC	2,809	$2.13M	0.0%	+79.7%	0.003%
10/26/2026	Plimoth Trust Co. LLC	465	$0.35M	0.1%	-5.3%	0.000%
10/26/2026	Noesis Capital Mangement Corp	33,160	$25.14M	3.0%	-0.1%	0.032%
10/24/2026	Apollon Wealth Management LLC	6,515	$4.94M	0.1%	-2.2%	0.006%
10/24/2026	Loring Wolcott & Coolidge Fiduciary Advisors LLP MA	39,761	$30.15M	0.3%	-39.6%	0.039%
10/24/2026	Slow Capital Inc.	10,588	$8.03M	0.9%	-0.2%	0.010%
10/24/2026	Kingswood Wealth Advisors LLC	870	$0.66M	0.0%	+17.6%	0.001%
10/24/2026	Samalin Investment Counsel LLC	311	$0.24M	0.1%	N/A	0.000%
10/24/2026	Valley National Advisers Inc.	1,058	$0.80M	0.1%	-3.0%	0.001%
10/23/2026	Signaturefd LLC	2,123	$1.61M	0.0%	+20.9%	0.002%
10/23/2026	Citizens Financial Group Inc. RI	5,978	$4.53M	0.1%	+36.6%	0.006%
10/23/2026	Simplicity Wealth LLC	1,257	$0.95M	0.0%	+7.2%	0.001%
10/23/2026	Sowell Financial Services LLC	480	$0.36M	0.0%	-4.4%	0.000%
10/23/2026	Evergreen Capital Management LLC	14,214	$10.78M	0.2%	-20.0%	0.014%
10/23/2026	Gibbs Wealth Management	2,531	$1.92M	0.2%	+12.7%	0.002%
10/23/2026	Murphy Pohlad Asset Management LLC	3,488	$2.65M	0.9%	-0.6%	0.003%
10/23/2026	Tectonic Advisors LLC	1,743	$1.32M	0.1%	+54.8%	0.002%
10/23/2026	Winthrop Advisory Group LLC	309	$0.23M	0.0%	N/A	0.000%
10/23/2026	Wedbush Securities Inc.	403	$0.31M	0.0%	N/A	0.000%
10/23/2026	Fifth Third Wealth Advisors LLC	2,211	$1.68M	0.0%	+2.0%	0.002%
10/23/2026	Sterling Capital Management LLC	15,957	$12.10M	0.2%	+59.3%	0.015%
10/23/2026	Washington Trust Advisors Inc.	25,823	$19.58M	1.4%	-6.8%	0.025%
10/22/2026	Yousif Capital Management LLC	8,472	$6.42M	0.1%	-3.7%	0.008%
10/22/2026	BIP Wealth LLC	562	$0.43M	0.0%	+7.7%	0.001%
10/22/2026	MBL Wealth LLC	1,107	$0.84M	0.0%	N/A	0.001%
10/22/2026	Sepio Capital LP	3,639	$2.76M	0.1%	-17.6%	0.004%
10/22/2026	WP Advisors LLC	678	$0.52M	0.1%	-43.7%	0.001%
10/22/2026	Howland Capital Management LLC	36,782	$27.89M	1.0%	-1.1%	0.036%
10/22/2026	Brookstone Capital Management	279	$0.21M	0.0%	N/A	0.000%
10/22/2026	Ledyard National Bank	6,272	$4.76M	0.4%	-0.3%	0.006%
10/22/2026	Root Financial Partners LLC	386	$0.29M	0.0%	N/A	0.000%
10/22/2026	SBI Securities Co. Ltd.	284	$0.22M	0.0%	-6.9%	0.000%
10/22/2026	Reyes Financial Architecture Inc.	140	$0.11M	0.1%	N/A	0.000%

Data available starting January 2016

Regeneron Pharmaceuticals, Inc. discovers, invents, develops, manufactures, and commercializes medicines for treating various diseases worldwide. The company's products include EYLEA injection to treat wet age-related macular degeneration and diabetic macular edema; myopic choroidal neovascularization; diabetic retinopathy; neovascular glaucoma; and retinopathy of prematurity. It also provides Dupixent injection to treat atopic dermatitis and asthma in adults and pediatrics; Libtayo injection to treat metastatic or locally advanced cutaneous squamous cell carcinoma; Praluent injection for heterozygous familial hypercholesterolemia or clinical atherosclerotic cardiovascular disease in adults; REGEN-COV for covid-19; and Kevzara solution for treating rheumatoid arthritis in adults. In addition, the company offers Inmazeb injection for infection caused by Zaire ebolavirus; ARCALYST injection for cryopyrin-associated periodic syndromes, including familial cold auto-inflammatory syndrome and muckle-wells syndrome; and ZALTRAP injection for intravenous infusion to treat metastatic colorectal cancer; and develops product candidates for treating patients with eye, allergic and inflammatory, cardiovascular and metabolic, infectious, and rare diseases; and cancer, pain, and hematologic conditions. It has collaboration with Mammoth Biosciences, Inc. to research, develop and commercialize in vivo CRISPR-based gene editing therapies for multiple tissues and cell types. The company was incorporated in 1988 and is headquartered in Tarrytown, New York.

Today's Range

Now: $960.14

$927.00

$959.00

50 Day Range

MA: $793.30

$726.47

$927.89

52 Week Range

Now: $960.14

$591.52

$959.00

Volume

184,551 shs

Average Volume

818,672 shs

Market Capitalization

$98.86 billion

P/E Ratio

21.27

Dividend Yield

0.41%

Beta

0.1

Who are the company insiders with the largest holdings of Regeneron Pharmaceuticals?: Regeneron Pharmaceuticals' top insider investors include:
George Yancopoulos (Insider)
Leonard S Schleifer (CEO)
P Roy Vagelos (Chairman)
P Roy Vagelos (Director)
George L Sing (Director)
George Sing (Director)
Joseph L Goldstein (Director)
Robert J Terifay (EVP)
Murray Goldberg (SVP)
Neil Stahl (EVP)
Learn More about top insider investors at Regeneron Pharmaceuticals.
Who are the major institutional investors of Regeneron Pharmaceuticals?: Regeneron Pharmaceuticals' top institutional investors include:
Robeco Institutional Asset Management B.V. — 0.39%
Sumitomo Mitsui Trust Group Inc. — 0.27%
Mcdonald Capital Investors Inc. CA — 0.17%
Mirae Asset Global Investments Co. Ltd. — 0.12%
ProShare Advisors LLC — 0.11%
Pinnacle Associates Ltd. — 0.08%
Learn More about top institutional investors of Regeneron Pharmaceuticals stock.
Which institutional investors are selling Regeneron Pharmaceuticals stock?: In the previous quarter, REGN stock was sold by these institutional investors:
Assenagon Asset Management S.A.
Robeco Institutional Asset Management B.V.
Curated Wealth Partners LLC
Loring Wolcott & Coolidge Fiduciary Advisors LLP MA
Mcdonald Capital Investors Inc. CA
Generate Investment Management Ltd
Vontobel Holding Ltd.
Sumitomo Mitsui Trust Group Inc.
During the previous year, company insiders that have sold Regeneron Pharmaceuticals company stock include:
Andrew J Murphy (Insider)
Arthur F Ryan (Director)
Marion Mccourt (EVP)
Jason Pitofsky (SVP)
Jason Pitofsky (VP)
Bonnie L Bassler (Director)
Huda Y Zoghbi (Director)
Kathryn Guarini (Director)
Learn More investors selling Regeneron Pharmaceuticals stock.
Which institutional investors are buying Regeneron Pharmaceuticals stock?: During the last quarter, REGN stock was purchased by institutional investors including:
Mirae Asset Global Investments Co. Ltd.
Smith Group Asset Management LLC
Vest Financial LLC
Cantor Fitzgerald Investment Advisors L.P.
Boston Trust Walden Corp
WestEnd Advisors LLC
Motley Fool Asset Management LLC
Sterling Capital Management LLC