REGN Insider Trading

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Insider Trading History
Frequently Asked Questions
About

Insider Ownership Percentage: 7.02%

Insider Buying (Last 12 Months): $0.00

Insider Selling (Last 12 Months): $4,533,521.33

Regeneron Pharmaceuticals Insider Trading History Chart

Regeneron Pharmaceuticals Share Price & Price History

^$722.80

▼ -0.87 (-0.12%)

As of 12/4/2025 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
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
1/27/2023	Michael S. Brown	Director	Sell	1	$747.00	$747.00	1,247
12/28/2022	N. Anthony Coles	Director	Sell	5,758	$714.11	$4,111,845.38	1,093
12/12/2022	Marion Mccourt	EVP	Sell	264	$730.17	$192,764.88	19,106
12/8/2022	Bonnie L. Bassler	Director	Sell	218	$779.00	$169,822.00	1,082

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
12/2/2025	Allworth Financial LP	1,496	$0.84M	0.0%	+50.5%	0.001%
12/2/2025	IFP Advisors Inc	1,405	$0.79M	0.0%	+14.2%	0.001%
12/2/2025	Swiss Life Asset Management Ltd	23,658	$13.30M	0.1%	+112.0%	0.023%
12/1/2025	Groupama Asset Managment	62,701	$35.26M	0.1%	-7.6%	0.060%
12/1/2025	Cambria Investment Management L.P.	3,090	$1.74M	0.1%	+21.8%	0.003%
11/24/2025	Pointe Capital Management LLC	719	$0.40M	0.2%	+37.0%	0.001%
11/24/2025	Greenfield Seitz Capital Management LLC	3,260	$1.83M	0.6%	+1.4%	0.003%
11/24/2025	CIBC Private Wealth Group LLC	2,113	$1.19M	0.0%	+7.3%	0.002%
11/21/2025	CIBC Bancorp USA Inc.	18,022	$10.13M	0.0%	N/A	0.017%
11/21/2025	Forefront Analytics LLC	412	$0.23M	0.2%	-15.9%	0.000%
11/20/2025	WBI Investments LLC	736	$0.41M	0.1%	N/A	0.001%
11/20/2025	Wilmington Savings Fund Society FSB	106	$60K	0.0%	-85.4%	0.000%
11/20/2025	Caerus Investment Advisors LLC	1,329	$0.75M	0.3%	N/A	0.001%
11/19/2025	Captrust Financial Advisors	14,417	$8.11M	0.0%	+34.4%	0.014%
11/19/2025	Coldstream Capital Management Inc.	2,027	$1.14M	0.0%	+85.3%	0.002%
11/19/2025	Danske Bank A S	55,527	$31.22M	0.1%	N/A	0.053%
11/19/2025	Caitong International Asset Management Co. Ltd	968	$0.54M	0.4%	+638.9%	0.001%
11/18/2025	Advisory Services Network LLC	3,981	$2.24M	0.0%	-1.2%	0.004%
11/18/2025	Cim Investment Management Inc.	454	$0.26M	0.1%	-50.7%	0.000%
11/18/2025	Integrated Investment Consultants LLC	756	$0.43M	0.1%	+10.5%	0.001%
11/18/2025	Livforsakringsbolaget Skandia Omsesidigt	772	$0.43M	0.0%	-11.5%	0.001%
11/17/2025	Hancock Whitney Corp	1,230	$0.69M	0.0%	-1.6%	0.001%
11/17/2025	Jacobs Levy Equity Management Inc.	287,881	$161.87M	0.6%	+22.9%	0.274%
11/17/2025	Morningstar Investment Management LLC	3,918	$2.20M	0.1%	+238.1%	0.004%
11/17/2025	Kestra Private Wealth Services LLC	1,054	$0.59M	0.0%	-34.6%	0.001%
11/17/2025	NewEdge Advisors LLC	4,032	$2.27M	0.0%	+108.0%	0.004%
11/17/2025	Armistice Capital LLC	125,206	$70.40M	1.0%	+25.2%	0.119%
11/17/2025	CANADA LIFE ASSURANCE Co	91,004	$50.99M	0.1%	+4.5%	0.087%
11/17/2025	Williams Jones Wealth Management LLC.	817	$0.46M	0.0%	-16.5%	0.001%
11/17/2025	Woodline Partners LP	60,964	$34.28M	0.2%	+3.7%	0.058%
11/17/2025	Blue Chip Partners LLC	719	$0.40M	0.0%	+21.0%	0.001%
11/17/2025	Triumph Capital Management	465	$0.26M	0.1%	-44.8%	0.000%
11/17/2025	Dark Forest Capital Management LP	6,069	$3.41M	0.1%	N/A	0.006%
11/17/2025	Papamarkou Wellner Asset Management inc.	365	$0.21M	0.1%	N/A	0.000%
11/17/2025	Zurich Insurance Group Ltd FI	149,804	$84.23M	0.6%	+561.4%	0.143%
11/17/2025	United Capital Financial Advisors LLC	2,571	$1.45M	0.0%	+15.1%	0.002%
11/17/2025	Utah Retirement Systems	17,225	$9.69M	0.1%	+0.1%	0.016%
11/17/2025	Voleon Capital Management LP	25,718	$14.46M	0.4%	+37.8%	0.024%
11/17/2025	Voloridge Investment Management LLC	172,836	$97.18M	0.3%	-38.2%	0.164%
11/17/2025	Vestal Point Capital LP	25,000	$14.06M	0.6%	N/A	0.024%
11/17/2025	Tidal Investments LLC	15,577	$8.76M	0.0%	+17.3%	0.015%
11/17/2025	State Street Corp	4,691,223	$2.64B	0.1%	-2.9%	4.464%
11/17/2025	Sarissa Capital Management LP	4,190	$2.36M	1.3%	N/A	0.004%
11/17/2025	Scientech Research LLC	3,200	$1.80M	0.6%	+73.6%	0.003%
11/17/2025	Shelton Capital Management	14,987	$8.43M	0.2%	-17.8%	0.014%
11/17/2025	Polar Capital Holdings Plc	158,817	$89.30M	0.4%	+126.9%	0.151%
11/17/2025	Polymer Capital Management US LLC	589	$0.33M	0.0%	N/A	0.001%
11/17/2025	Quarry LP	657	$0.37M	0.1%	N/A	0.001%
11/17/2025	Public Employees Retirement System of Ohio	41,663	$23.43M	0.1%	-2.1%	0.040%
11/17/2025	Northwestern Mutual Wealth Management Co.	3,176	$1.79M	0.0%	-17.2%	0.003%
11/17/2025	Northern Trust Corp	984,792	$553.72M	0.1%	+2.7%	0.937%
11/17/2025	Norinchukin Bank The	8,811	$4.95M	0.1%	-3.7%	0.008%
11/17/2025	Mariner LLC	31,940	$17.96M	0.0%	+46.4%	0.030%
11/17/2025	Morse Asset Management Inc	702	$0.40M	0.1%	-11.7%	0.001%
11/17/2025	National Bank of Canada FI	164,385	$92.43M	0.1%	+15.4%	0.156%
11/17/2025	Mercer Global Advisors Inc. ADV	12,340	$6.94M	0.0%	+116.1%	0.012%
11/17/2025	MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	91,383	$51.29M	0.1%	+13.7%	0.087%
11/17/2025	Larson Financial Group LLC	448	$0.25M	0.0%	+153.1%	0.000%
11/17/2025	Lido Advisors LLC	12,146	$6.83M	0.0%	+114.1%	0.012%
11/17/2025	Integrated Wealth Concepts LLC	1,431	$0.81M	0.0%	N/A	0.001%
11/17/2025	Hamilton Wealth LLC	12,581	$7.07M	1.5%	N/A	0.012%
11/17/2025	Holocene Advisors LP	151,733	$85.32M	0.2%	N/A	0.144%
11/17/2025	Humankind Investments LLC	1,275	$0.72M	0.2%	+7.1%	0.001%
11/17/2025	Gotham Asset Management LLC	84,230	$47.36M	0.2%	+211.9%	0.080%
11/17/2025	Fagan Associates Inc.	13,978	$7.86M	1.1%	+1.0%	0.013%
11/17/2025	Fairfield Bush & CO.	1,871	$1.05M	0.5%	-14.4%	0.002%
11/17/2025	Fayez Sarofim & Co	2,550	$1.43M	0.0%	-1.4%	0.002%
11/17/2025	Fred Alger Management LLC	513	$0.29M	0.0%	+6.7%	0.000%
11/17/2025	Focus Partners Wealth	9,152	$5.15M	0.0%	+70.5%	0.009%
11/17/2025	Distillate Capital Partners LLC	37,112	$20.88M	1.1%	+32.6%	0.035%
11/17/2025	Brevan Howard Capital Management LP	5,240	$2.95M	0.0%	-21.6%	0.005%
11/17/2025	Cannell & Spears LLC	30,079	$16.91M	0.3%	+13.7%	0.029%
11/17/2025	Capitolis Liquid Global Markets LLC	75,000	$42.17M	0.3%	-55.4%	0.071%
11/17/2025	Cinctive Capital Management LP	1,937	$1.09M	0.1%	-37.7%	0.002%
11/17/2025	Chevy Chase Trust Holdings LLC	203,152	$114.23M	0.3%	-1.7%	0.193%
11/17/2025	Circle Wealth Management LLC	1,221	$0.69M	0.0%	+37.2%	0.001%
11/17/2025	Community Bank N.A.	95	$53K	0.0%	N/A	0.000%
11/17/2025	Banco Bilbao Vizcaya Argentaria S.A.	37,625	$21.15M	0.2%	-0.1%	0.036%
11/17/2025	California Public Employees Retirement System	203,114	$114.21M	0.1%	-35.5%	0.193%
11/17/2025	Bank of Nova Scotia	278,551	$156.62M	0.3%	+11.7%	0.265%
11/17/2025	BNP Paribas	866	$0.49M	0.0%	+34.3%	0.001%
11/17/2025	Boothbay Fund Management LLC	4,240	$2.38M	0.0%	+57.1%	0.004%
11/17/2025	Alpine Fox Capital LLC	1,000	$0.56M	0.2%	N/A	0.001%
11/17/2025	Aquatic Capital Management LLC	13,831	$7.78M	0.1%	-73.4%	0.013%
11/17/2025	Algert Global LLC	536	$0.30M	0.0%	+17.5%	0.001%
11/17/2025	Alliancebernstein L.P.	523,883	$294.56M	0.1%	-10.8%	0.498%
11/17/2025	Ameriprise Financial Inc.	283,105	$159.22M	0.0%	-1.6%	0.269%
11/14/2025	Creative Planning	19,939	$11.21M	0.0%	+110.2%	0.019%
11/14/2025	Lazard Asset Management LLC	10,380	$5.84M	0.0%	+4,035.5%	0.010%
11/14/2025	SummitTX Capital L.P.	972	$0.55M	0.0%	N/A	0.001%
11/14/2025	AQR Capital Management LLC	721,354	$405.60M	0.3%	+528.7%	0.686%
11/14/2025	Credit Agricole S A	34,444	$19.37M	0.1%	N/A	0.033%
11/14/2025	Raymond James Financial Inc.	138,506	$77.88M	0.0%	+5.7%	0.132%
11/14/2025	Bellevue Group AG	15,057	$8.47M	0.2%	-43.7%	0.014%
11/14/2025	Virtu Financial LLC	9,863	$5.55M	0.3%	+210.6%	0.009%
11/14/2025	Amundi	621,741	$364.02M	0.1%	-30.7%	0.592%
11/14/2025	Equitable Holdings Inc.	842	$0.47M	0.0%	-4.4%	0.001%
11/14/2025	Caisse de depot et placement du Quebec	462,502	$260.05M	0.5%	+115.4%	0.440%
11/14/2025	Freestone Grove Partners LP	64,229	$36.11M	0.3%	+48.0%	0.061%
11/14/2025	Man Group plc	271,707	$152.77M	0.3%	+257.6%	0.259%

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: $722.80

$721.22

$735.00

50 Day Range

MA: $647.61

$557.73

$787.32

52 Week Range

Now: $722.80

$476.49

$800.99

Volume

1,067,067 shs

Average Volume

1,101,340 shs

Market Capitalization

$75.97 billion

P/E Ratio

17.31

Dividend Yield

0.49%

Beta

0.37

Who are the company insiders with the largest holdings of Regeneron Pharmaceuticals?: Regeneron Pharmaceuticals' top insider investors include:
Leonard S Schleifer (CEO)
George Yancopoulos (Insider)
Andrew J Murphy (EVP)
Joseph J Larosa (EVP)
Arthur F Ryan (Director)
Christopher R Fenimore (SVP)
Christopher R Fenimore (CFO)
Marion Mccourt (EVP)
Joseph L Goldstein (Director)
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. — 8.54%
State Street Corp — 4.46%
Dodge & Cox — 4.33%
Franklin Resources Inc. — 2.33%
Capital World Investors — 1.90%
Invesco Ltd. — 1.41%
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:
Capital International Investors
Vanguard Group Inc.
Amundi
Barclays PLC
State Street Corp
UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC
California Public Employees Retirement System
Voloridge Investment Management LLC
During the previous year, company insiders that have sold Regeneron Pharmaceuticals company stock include:
Leonard S Schleifer (CEO)
George Yancopoulos (Insider)
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:
Dodge & Cox
AQR Capital Management LLC
Invesco Ltd.
Caisse de depot et placement du Quebec
Man Group plc
Arrowstreet Capital Limited Partnership
Holocene Advisors LP
Franklin Resources Inc.