REGN Insider Trading

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Insider Trading History
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About

Insider Ownership Percentage: 7.02%

Insider Buying (Last 12 Months): $0.00

Insider Selling (Last 12 Months): $5,733,521.33

Regeneron Pharmaceuticals Insider Trading History Chart

Regeneron Pharmaceuticals Share Price & Price History

^$759.18

▲ +4.16 (0.55%)

As of 02/3/2026 05:00 PM 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
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
11/1/2023	Marion Mccourt	EVP	Sell	1,000	$783.91	$783,910.00	19,803
10/13/2023	Huda Y. Zoghbi	Director	Sell	1,000	$850.00	$850,000.00	1,247
10/2/2023	Marion Mccourt	EVP	Sell	1,038	$827.00	$858,426.00	19,803
8/24/2023	Plew Daniel P Van	EVP	Sell	6,197	$841.71	$5,216,076.87	21,508
8/23/2023	Christine A. Poon	Director	Sell	12,280	$839.97	$10,314,831.60	2,037
8/23/2023	Robert E. Landry	CFO	Sell	223	$844.00	$188,212.00	31,699
8/22/2023	Neil Stahl	EVP	Sell	11,665	$840.98	$9,810,031.70	53,100
8/21/2023	Bonnie L. Bassler	Director	Sell	853	$829.00	$707,137.00	1,247
8/10/2023	Bonnie L. Bassler	Director	Sell	853	$789.00	$673,017.00	1,247
8/1/2023	Arthur F. Ryan	Director	Sell	100	$736.59	$73,659.00	18,647
7/3/2023	Arthur F. Ryan	Director	Sell	100	$716.88	$71,688.00	18,747
7/3/2023	Marion Mccourt	EVP	Sell	250	$710.09	$177,522.50	20,303
6/1/2023	Arthur F. Ryan	Director	Sell	100	$735.42	$73,542.00	18,847
6/1/2023	Marion Mccourt	EVP	Sell	250	$736.00	$184,000.00	20,553
4/21/2023	Michael S. Brown	Director	Sell	3,070	$798.42	$2,451,149.40	1,247
4/3/2023	Arthur F. Ryan	Director	Sell	100	$819.31	$81,931.00	19,047
4/3/2023	Marion Mccourt	EVP	Sell	1,100	$818.80	$900,680.00	20,803
3/27/2023	Robert E. Landry	CFO	Sell	183	$821.70	$150,371.10	32,929
3/24/2023	Bonnie L. Bassler	Director	Sell	1,240	$818.00	$1,014,320.00	1,247
3/23/2023	Christopher R. Fenimore	SVP	Sell	2,192	$806.47	$1,767,782.24	18,409
3/23/2023	George D. Yancopoulos	Insider	Sell	3,656	$804.26	$2,940,374.56	196,848
3/1/2023	Arthur F. Ryan	Director	Sell	100	$762.50	$76,250.00	19,147
3/1/2023	Marion Mccourt	EVP	Sell	1,100	$759.89	$835,879.00	20,803
2/7/2023	Marion Mccourt	EVP	Sell	1,000	$769.04	$769,040.00	22,079
2/6/2023	George D. Yancopoulos	Insider	Sell	13,189	$800.08	$10,552,255.12	200,504
2/6/2023	Joseph L. Goldstein	Director	Sell	3,613	$800.00	$2,890,400.00	6,247
2/6/2023	Robert E. Landry	CFO	Sell	752	$788.88	$593,237.76	32,105
2/3/2023	Bonnie L. Bassler	Director	Sell	1,021	$779.00	$795,359.00	1,247
2/3/2023	Robert E. Landry	CFO	Sell	739	$764.50	$564,965.50	32,105

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
2/3/2026	NewEdge Wealth LLC	1,366	$1.05M	0.0%	+162.2%	0.001%
2/3/2026	Stiles Financial Services Inc	4,011	$3.10M	1.0%	-7.9%	0.004%
2/3/2026	Washington Trust Advisors Inc.	29,424	$22.71M	1.7%	-1.0%	0.028%
2/3/2026	Denali Advisors LLC	400	$0.31M	0.0%	N/A	0.000%
2/3/2026	F m Investments LLC	22,813	$17.61M	0.7%	+248.7%	0.022%
2/3/2026	Chesapeake Capital Corp IL	596	$0.46M	0.4%	N/A	0.001%
2/3/2026	Crossmark Global Holdings Inc.	1,247	$0.96M	0.0%	-46.0%	0.001%
2/3/2026	Ethic Inc.	15,943	$12.31M	0.2%	-3.3%	0.015%
2/3/2026	Ballentine Partners LLC	1,109	$0.86M	0.0%	+4.0%	0.001%
2/3/2026	International Assets Investment Management LLC	873	$0.67M	0.0%	+19.9%	0.001%
2/3/2026	Generali Asset Management SPA SGR	7,666	$5.92M	0.1%	-36.2%	0.007%
2/3/2026	ASR Vermogensbeheer N.V.	6,837	$5.28M	0.1%	-1.2%	0.007%
2/3/2026	MGO One Seven LLC	589	$0.46M	0.0%	+3.3%	0.001%
2/3/2026	Crestwood Advisors Group LLC	711	$0.55M	0.0%	-6.9%	0.001%
2/3/2026	Allegiance Financial Group Advisory Services LLC	391	$0.30M	0.1%	N/A	0.000%
2/3/2026	Bluebird Wealth Management LLC	2,562	$1.98M	1.8%	N/A	0.002%
2/3/2026	Richard Bernstein Advisors LLC	1,181	$0.91M	0.0%	-10.6%	0.001%
2/3/2026	Sequoia Financial Advisors LLC	2,949	$2.28M	0.0%	+11.1%	0.003%
2/3/2026	Gateway Investment Advisers LLC	464	$0.36M	0.0%	+4.3%	0.000%
2/3/2026	Lmcg Investments LLC	39,821	$30.74M	1.8%	+9.8%	0.038%
2/3/2026	Praxis Investment Management Inc.	1,762	$1.36M	0.1%	+30.0%	0.002%
2/3/2026	K.J. Harrison & Partners Inc	6,091	$4.70M	0.6%	+48.9%	0.006%
2/3/2026	S Bank Fund Management Ltd	616	$0.48M	0.1%	-46.3%	0.001%
2/3/2026	Swedbank AB	227,779	$175.82M	0.2%	+9.8%	0.217%
2/3/2026	Mitsubishi UFJ Asset Management Co. Ltd.	224,857	$174.56M	0.1%	+4.0%	0.214%
2/3/2026	BOKF NA	1,376	$1.06M	0.0%	-11.1%	0.001%
2/3/2026	Sumitomo Mitsui DS Asset Management Company Ltd	14,057	$10.85M	0.1%	-1.3%	0.013%
2/3/2026	Harel Insurance Investments & Financial Services Ltd.	2,136	$1.65M	0.0%	+8.3%	0.002%
2/3/2026	SBI Securities Co. Ltd.	407	$0.31M	0.0%	+8.0%	0.000%
2/3/2026	Morse Asset Management Inc	794	$0.61M	0.1%	+13.1%	0.001%
2/2/2026	Alliance Wealth Advisors LLC UT	977	$0.75M	0.2%	-20.0%	0.001%
2/2/2026	Principal Financial Group Inc.	119,625	$92.34M	0.0%	+1.0%	0.114%
2/2/2026	Pinnacle Wealth Management Advisory Group LLC	2,237	$1.73M	0.1%	+46.5%	0.002%
2/2/2026	Varma Mutual Pension Insurance Co	17,088	$13.19M	0.1%	-14.1%	0.016%
2/2/2026	Bellecapital International Ltd.	23,109	$17.84M	3.2%	-16.8%	0.022%
2/2/2026	Seizert Capital Partners LLC	94,705	$73.10M	3.1%	-4.1%	0.090%
2/2/2026	Intact Investment Management Inc.	3,040	$2.35M	0.1%	+9.7%	0.003%
2/2/2026	WJ Financial Advisors LLC	861	$0.67M	0.6%	-17.0%	0.001%
2/2/2026	CENTRAL TRUST Co	751	$0.58M	0.0%	+44.7%	0.001%
2/2/2026	PKO Investment Management Joint Stock Co	4,850	$3.74M	0.3%	-56.7%	0.005%
2/2/2026	Benjamin Edwards Inc.	4,304	$3.32M	0.0%	-3.0%	0.004%
2/2/2026	Strs Ohio	32,996	$25.47M	0.1%	-7.3%	0.031%
2/2/2026	Del Sette Capital Management LLC	2,919	$2.25M	1.4%	N/A	0.003%
2/2/2026	Ashton Thomas Securities LLC	1,214	$0.94M	0.2%	+2.4%	0.001%
2/2/2026	Composition Wealth LLC	3,742	$2.89M	0.0%	+8.0%	0.004%
2/2/2026	Kornitzer Capital Management Inc. KS	1,891	$1.46M	0.0%	N/A	0.002%
2/2/2026	PFA Pension Forsikringsaktieselskab	92,850	$71.86M	0.2%	N/A	0.088%
2/2/2026	Horizon Investments LLC	3,892	$3M	0.0%	-79.5%	0.004%
2/2/2026	Essex Bank	276	$0.21M	0.0%	N/A	0.000%
2/2/2026	Robertson Stephens Wealth Management LLC	636	$0.49M	0.0%	N/A	0.001%
2/2/2026	Nkcfo LLC	142	$0.11M	0.0%	N/A	0.000%
2/2/2026	Fifth Third Bancorp	15,425	$11.91M	0.0%	+27.9%	0.015%
2/2/2026	Danske Bank A S	99,302	$76.65M	0.2%	+78.8%	0.094%
2/2/2026	Mutual Advisors LLC	502	$0.39M	0.0%	-4.9%	0.000%
2/2/2026	GenTrust LLC	569	$0.44M	0.0%	N/A	0.001%
2/2/2026	Citizens Business Bank	6,182	$4.77M	0.8%	+1.0%	0.006%
2/2/2026	Oppenheimer & Co. Inc.	24,792	$19.14M	0.3%	+4.5%	0.024%
2/2/2026	Oppenheimer Asset Management Inc.	2,396	$1.85M	0.0%	-1.3%	0.002%
1/30/2026	Sigma Planning Corp	774	$0.60M	0.0%	+50.6%	0.001%
1/30/2026	Citizens Financial Group Inc. RI	3,859	$2.98M	0.0%	+6.7%	0.004%
1/30/2026	New York State Teachers Retirement System	86,289	$66.60M	0.1%	-0.3%	0.082%
1/30/2026	Activest Wealth Management	68	$52K	0.0%	+78.9%	0.000%
1/30/2026	State of New Jersey Common Pension Fund D	35,516	$27.41M	0.1%	-4.4%	0.034%
1/30/2026	Mcdonald Capital Investors Inc. CA	208,241	$160.74M	9.9%	-2.4%	0.198%
1/30/2026	GC Wealth Management RIA LLC	376	$0.29M	0.0%	-65.6%	0.000%
1/30/2026	Cardinal Capital Management	8,406	$6.49M	0.9%	-0.3%	0.008%
1/30/2026	Fagan Associates Inc.	13,931	$10.75M	1.4%	-0.3%	0.013%
1/30/2026	Simplicity Wealth LLC	845	$0.65M	0.0%	+123.5%	0.001%
1/30/2026	Keybank National Association OH	1,675	$1.29M	0.0%	+5.9%	0.002%
1/30/2026	AMG National Trust Bank	5,539	$4.28M	0.1%	-4.3%	0.005%
1/30/2026	Westhampton Capital LLC	1,223	$0.94M	0.4%	+3.4%	0.001%
1/30/2026	United Community Bank	53	$41K	0.0%	-69.5%	0.000%
1/30/2026	Oakworth Capital Inc.	56	$43K	0.0%	+124.0%	0.000%
1/30/2026	Wealthfront Advisers LLC	8,142	$6.29M	0.0%	+37.1%	0.008%
1/30/2026	Samalin Investment Counsel LLC	521	$0.40M	0.1%	-2.8%	0.000%
1/30/2026	Certuity LLC	637	$0.49M	0.0%	-70.7%	0.001%
1/30/2026	Torren Management LLC	49	$38K	0.0%	N/A	0.000%
1/30/2026	Mitsubishi UFJ Trust & Banking Corp	49,014	$37.83M	0.1%	-22.0%	0.047%
1/30/2026	M&T Bank Corp	6,435	$4.97M	0.0%	+20.5%	0.006%
1/30/2026	Exencial Wealth Advisors LLC	431	$0.33M	0.0%	N/A	0.000%
1/29/2026	Comerica Bank	17,340	$13.39M	0.1%	-2.0%	0.016%
1/29/2026	RMR Wealth Builders	3,459	$2.67M	0.2%	+15.7%	0.003%
1/29/2026	Anchyra Partners LLC	387	$0.30M	0.1%	N/A	0.000%
1/29/2026	Aprio Wealth Management LLC	273	$0.21M	0.0%	N/A	0.000%
1/29/2026	D.A. Davidson & CO.	544	$0.42M	0.0%	-10.8%	0.001%
1/29/2026	Pictet Asset Management Holding SA	367,870	$284.72M	0.3%	+13.8%	0.350%
1/29/2026	State of Michigan Retirement System	26,421	$20.39M	0.1%	-4.0%	0.025%
1/29/2026	Inscription Capital LLC	345	$0.27M	0.0%	N/A	0.000%
1/29/2026	Simon Quick Advisors LLC	404	$0.31M	0.0%	+6.0%	0.000%
1/29/2026	Sanctuary Advisors LLC	38,982	$30.09M	0.2%	+0.1%	0.037%
1/29/2026	Quent Capital LLC	478	$0.37M	0.0%	+8.6%	0.000%
1/29/2026	Advisors Capital Management LLC	285	$0.22M	0.0%	N/A	0.000%
1/29/2026	Golden State Equity Partners	355	$0.27M	0.0%	-62.5%	0.000%
1/29/2026	Vanguard Group Inc.	9,075,153	$7B	0.1%	+0.3%	8.635%
1/29/2026	Sava Infond d.o.o.	1,150	$0.89M	0.1%	+29.2%	0.001%
1/29/2026	Klingman & Associates LLC	382	$0.30M	0.0%	N/A	0.000%
1/29/2026	Resonant Capital Advisors LLC	432	$0.33M	0.0%	+19.0%	0.000%
1/29/2026	Generali Investments Management Co LLC	1,866	$1.44M	0.3%	+55.2%	0.002%
1/29/2026	Calamos Advisors LLC	11,793	$9.10M	0.0%	-3.9%	0.011%
1/29/2026	China Universal Asset Management Co. Ltd.	19,753	$15.25M	1.2%	-7.5%	0.019%

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: $759.18

$742.74

$773.72

50 Day Range

MA: $757.70

$692.58

$812.27

52 Week Range

Now: $759.18

$476.49

$821.11

Volume

768,493 shs

Average Volume

892,782 shs

Market Capitalization

$79.79 billion

P/E Ratio

18.27

Dividend Yield

0.47%

Beta

0.4

Who are the company insiders with the largest holdings of Regeneron Pharmaceuticals?: Regeneron Pharmaceuticals' top insider investors include:
Leonard S Schleifer (CEO)
Andrew J Murphy (EVP)
Joseph J Larosa (EVP)
Arthur F Ryan (Director)
Christopher R Fenimore (CFO)
Marion Mccourt (EVP)
Jason Pitofsky (VP)
Christine A Poon (Director)
Bonnie L Bassler (Director)
Michael S Brown (Director)
Learn More about top insider investors at Regeneron Pharmaceuticals.
Who are the major institutional investors of Regeneron Pharmaceuticals?: Regeneron Pharmaceuticals' top institutional investors include:
Vanguard Group Inc. — 8.63%
Pictet Asset Management Holding SA — 0.35%
Sumitomo Mitsui Trust Group Inc. — 0.27%
Robeco Institutional Asset Management B.V. — 0.25%
Assenagon Asset Management S.A. — 0.22%
Swedbank AB — 0.22%
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.
Sumitomo Mitsui Trust Group Inc.
Zurcher Kantonalbank Zurich Cantonalbank
Horizon Investments LLC
Mitsubishi UFJ Trust & Banking Corp
LBP AM SA
First Horizon Corp
Assetmark Inc.
During the previous year, company insiders that have sold Regeneron Pharmaceuticals company stock include:
Leonard S Schleifer (CEO)
Andrew J Murphy (EVP)
Joseph J Larosa (EVP)
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:
Robeco Institutional Asset Management B.V.
PFA Pension Forsikringsaktieselskab
Nordea Investment Management AB
Pictet Asset Management Holding SA
Danske Bank A S
OFI Invest Asset Management
Vanguard Group Inc.
Swedbank AB