United States Biotechnology & Medical Research

Regeneron Pharmaceuticals Inc (REGN)

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Over the last 90 days, Regeneron Pharmaceuticals Inc. has seen 21 insider transactions, with a total sell value of $148,251.08. All reported transactions were planned sales. The company's stock has experienced a -16.5% price change in the past 90 days. The last earnings report showed a 6.4% EPS beat.

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Ticker: REGN Exchange: NSM

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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings

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Company data & Insiders

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Trades

RYAN ARTHUR F

12 sales — total 70,524 USD

Planned sale 1 May 2026

Value US$2,414,717.76 | Price 240.05 | Shares 21,317

Planned sale 1 May 2026

Value US$4,935,272.19 | Price 283.10 | Shares 8,016

Planned sale 1 May 2026

Value US$3,557.45 | Price 711.49 | Shares 5

Planned sale 1 May 2026

Value US$1,421.74 | Price 710.87 | Shares 2

Planned sale 1 May 2026

Value US$4,256.70 | Price 709.45 | Shares 6

Planned sale 1 May 2026

Value US$2,829.60 | Price 707.40 | Shares 4

Planned sale 1 May 2026

Value US$4,947.18 | Price 706.74 | Shares 7

Planned sale 1 May 2026

Value US$9,877.84 | Price 705.56 | Shares 14

Planned sale 1 May 2026

Value US$10,564.20 | Price 704.28 | Shares 15

Planned sale 1 May 2026

Value US$16,883.04 | Price 703.46 | Shares 24

Planned sale 1 May 2026

Value US$10,536.90 | Price 702.46 | Shares 15

Planned sale 1 May 2026

Value US$3,508.80 | Price 701.76 | Shares 5

RYAN ARTHUR F

9 sales — total 77,727 USD

Planned sale 1 Apr 2026

Value US$4,312,024.88 | Price 373.04 | Shares 39,446

Planned sale 1 Apr 2026

Value US$3,988,183.79 | Price 52.93 | Shares 80,766

Planned sale 1 Apr 2026

Value US$6,996.78 | Price 777.42 | Shares 9

Planned sale 1 Apr 2026

Value US$10,096.06 | Price 776.62 | Shares 13

Planned sale 1 Apr 2026

Value US$10,858.12 | Price 775.58 | Shares 14

Planned sale 1 Apr 2026

Value US$6,196.64 | Price 774.58 | Shares 8

Planned sale 1 Apr 2026

Value US$6,188.72 | Price 773.59 | Shares 8

Planned sale 1 Apr 2026

Value US$2,318.28 | Price 772.76 | Shares 3

Planned sale 1 Apr 2026

Value US$771.32 | Price 771.32 | Shares 1

RYAN ARTHUR F

13 sales — total 78,550 USD

Planned sale 2 Mar 2026

Value US$15,785.60 | Price 789.28 | Shares 20

Planned sale 2 Mar 2026

Value US$15,779.20 | Price 788.96 | Shares 20

Planned sale 2 Mar 2026

Value US$1,574.68 | Price 787.34 | Shares 2

Planned sale 2 Mar 2026

Value US$5,506.27 | Price 786.61 | Shares 7

Planned sale 2 Mar 2026

Value US$8,640.28 | Price 785.48 | Shares 11

Planned sale 2 Mar 2026

Value US$7,060.32 | Price 784.48 | Shares 9

Planned sale 2 Mar 2026

Value US$7,836.20 | Price 783.62 | Shares 10

Planned sale 2 Mar 2026

Value US$1,565.24 | Price 782.62 | Shares 2

Planned sale 2 Mar 2026

Value US$1,562.42 | Price 781.21 | Shares 2

Planned sale 2 Mar 2026

Value US$2,342.07 | Price 780.69 | Shares 3

Planned sale 2 Mar 2026

Value US$3,898.45 | Price 779.69 | Shares 5

Planned sale 2 Mar 2026

Value US$1,556.60 | Price 778.30 | Shares 2

Planned sale 2 Mar 2026

Value US$5,442.22 | Price 777.46 | Shares 7

Zoghbi Huda Y

12 sales — total 2,573,832 USD

Planned sale 19 Feb 2026

Value US$3,160.00 | Price 790.00 | Shares 4

Planned sale 19 Feb 2026

Value US$43,994.16 | Price 785.61 | Shares 56

Planned sale 19 Feb 2026

Value US$125,512.00 | Price 784.45 | Shares 160

Planned sale 19 Feb 2026

Value US$172,323.80 | Price 783.29 | Shares 220

Planned sale 19 Feb 2026

Value US$233,065.80 | Price 782.10 | Shares 298

Planned sale 19 Feb 2026

Value US$163,287.52 | Price 781.28 | Shares 209

Planned sale 19 Feb 2026

Value US$258,328.95 | Price 780.45 | Shares 331

Planned sale 19 Feb 2026

Value US$162,146.40 | Price 779.55 | Shares 208

Planned sale 19 Feb 2026

Value US$41,258.91 | Price 778.47 | Shares 53

Planned sale 19 Feb 2026

Value US$38,775.00 | Price 775.50 | Shares 50

Planned sale 19 Feb 2026

Value US$37,959.32 | Price 774.68 | Shares 49

Proposed sale 19 Feb 2026

Value US$1,294,020.00 | Price 790.00 | Shares 1,638

RYAN ARTHUR F

13 sales — total 77,853 USD

Planned sale 9 Feb 2026

Value US$787.82 | Price 787.82 | Shares 1

Planned sale 9 Feb 2026

Value US$1,572.58 | Price 786.29 | Shares 2

Planned sale 9 Feb 2026

Value US$785.71 | Price 785.71 | Shares 1

Planned sale 9 Feb 2026

Value US$784.59 | Price 784.59 | Shares 1

Planned sale 9 Feb 2026

Value US$2,350.02 | Price 783.34 | Shares 3

Planned sale 9 Feb 2026

Value US$782.53 | Price 782.53 | Shares 1

Planned sale 9 Feb 2026

Value US$3,907.40 | Price 781.48 | Shares 5

Planned sale 9 Feb 2026

Value US$780.09 | Price 780.09 | Shares 1

Planned sale 9 Feb 2026

Value US$3,897.05 | Price 779.41 | Shares 5

Planned sale 9 Feb 2026

Value US$9,342.36 | Price 778.53 | Shares 12

Planned sale 9 Feb 2026

Value US$44,320.92 | Price 777.56 | Shares 57

Planned sale 9 Feb 2026

Value US$7,765.90 | Price 776.59 | Shares 10

Planned sale 9 Feb 2026

Value US$775.63 | Price 775.63 | Shares 1

Pitofsky Jason

SVP Controller

12 sales — total 3,179,592 USD

Planned sale 9 Feb 2026

Value US$41,643.16 | Price 785.72 | Shares 53

Planned sale 9 Feb 2026

Value US$784.66 | Price 784.66 | Shares 1

Planned sale 9 Feb 2026

Value US$112,785.12 | Price 783.23 | Shares 144

Planned sale 9 Feb 2026

Value US$28,958.79 | Price 782.67 | Shares 37

Planned sale 9 Feb 2026

Value US$20,315.62 | Price 781.37 | Shares 26

Planned sale 9 Feb 2026

Value US$58,504.50 | Price 780.06 | Shares 75

Planned sale 9 Feb 2026

Value US$159,809.80 | Price 779.56 | Shares 205

Planned sale 9 Feb 2026

Value US$438,211.05 | Price 778.35 | Shares 563

Planned sale 9 Feb 2026

Value US$304,006.41 | Price 777.51 | Shares 391

Planned sale 9 Feb 2026

Value US$404,520.03 | Price 776.43 | Shares 521

Planned sale 9 Feb 2026

Value US$15,519.00 | Price 775.95 | Shares 20

Proposed sale 9 Feb 2026

Value US$1,594,534.12 | Price 783.17 | Shares 2,036

Arthur F. Ryan

Director

1 sale — total 314,204 USD

Proposed sale 9 Feb 2026

Value US$314,204.00 | Price 785.51 | Shares 400

Bassler Bonnie L

2 sales — total 2,400,000 USD

Planned sale 7 Jan 2026

Value US$1,200,000.00 | Price 800.00 | Shares 1,500

Proposed sale 7 Jan 2026

Value US$1,200,000.00 | Price 800.00 | Shares 1,500

Bassler Bonnie L

1 sale — total 570,000 USD

Planned sale 20 Nov 2025

Value US$570,000.00 | Price 750.00 | Shares 760

Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other

Notification date	Transaction date	B/S Transaction type	Insider and/or position	Nb. shares Price Value	Number of shares	Price	Value
2026-05-04	2026-05-01	PlS Planned sale	1.7 RYAN ARTHUR F Non-Executive Director	21,317 +1.3% 240.05 US$2,414,718	21,317 +1.3%	240.05	US$2,414,718
2026-05-04	2026-05-01	PlS Planned sale	1.7 RYAN ARTHUR F Non-Executive Director	8,016 +32.8% 283.10 US$4,935,272	8,016 +32.8%	283.10	US$4,935,272
2026-05-04	2026-05-01	PlS Planned sale	1.7 RYAN ARTHUR F Non-Executive Director	14,478 -47.4% 369.03 US$1,872,942	14,478 -47.4%	369.03	US$1,872,942
2026-05-04	2026-05-01	PlS Planned sale	1.7 RYAN ARTHUR F Non-Executive Director	2 -0.0% 710.87 US$1,422	2 -0.0%	710.87	US$1,422
2026-05-04	2026-05-01	PlS Planned sale	1.7 RYAN ARTHUR F Non-Executive Director	6 -0.0% 709.45 US$4,257	6 -0.0%	709.45	US$4,257
2026-05-04	2026-05-01	PlS Planned sale	1.7 RYAN ARTHUR F Non-Executive Director	4 -0.0% 707.40 US$2,830	4 -0.0%	707.40	US$2,830
2026-05-04	2026-05-01	PlS Planned sale	1.7 RYAN ARTHUR F Non-Executive Director	7 -0.0% 706.74 US$4,947	7 -0.0%	706.74	US$4,947
2026-05-04	2026-05-01	PlS Planned sale	1.7 RYAN ARTHUR F Non-Executive Director	14 -0.1% 705.56 US$9,878	14 -0.1%	705.56	US$9,878
2026-05-04	2026-05-01	PlS Planned sale	1.7 RYAN ARTHUR F Non-Executive Director	15 -0.1% 704.28 US$10,564	15 -0.1%	704.28	US$10,564
2026-05-04	2026-05-01	PlS Planned sale	1.7 RYAN ARTHUR F Non-Executive Director	24 -0.1% 703.46 US$16,883	24 -0.1%	703.46	US$16,883
2026-05-04	2026-05-01	PlS Planned sale	1.7 RYAN ARTHUR F Non-Executive Director	15 -0.1% 702.46 US$10,537	15 -0.1%	702.46	US$10,537
2026-05-04	2026-05-01	PlS Planned sale	1.7 RYAN ARTHUR F Non-Executive Director	5 -0.0% 701.76 US$3,509	5 -0.0%	701.76	US$3,509
2026-04-03	2026-04-01	PlS Planned sale	1.7 RYAN ARTHUR F Non-Executive Director	40 -0.2% 779.71 US$31,188	40 -0.2%	779.71	US$31,188
2026-04-03	2026-04-01	PlS Planned sale	1.7 RYAN ARTHUR F Non-Executive Director	4 -0.0% 778.24 US$3,113	4 -0.0%	778.24	US$3,113
2026-04-03	2026-04-01	PlS Planned sale	1.7 RYAN ARTHUR F Non-Executive Director	9 -0.1% 777.42 US$6,997	9 -0.1%	777.42	US$6,997
2026-04-03	2026-04-01	PlS Planned sale	1.7 RYAN ARTHUR F Non-Executive Director	13 -0.1% 776.62 US$10,096	13 -0.1%	776.62	US$10,096
2026-04-03	2026-04-01	PlS Planned sale	1.7 RYAN ARTHUR F Non-Executive Director	14 -0.1% 775.58 US$10,858	14 -0.1%	775.58	US$10,858
2026-04-03	2026-04-01	PlS Planned sale	1.7 RYAN ARTHUR F Non-Executive Director	8 -0.0% 774.58 US$6,197	8 -0.0%	774.58	US$6,197
2026-04-03	2026-04-01	PlS Planned sale	1.7 RYAN ARTHUR F Non-Executive Director	8 -0.0% 773.59 US$6,189	8 -0.0%	773.59	US$6,189
2026-04-03	2026-04-01	PlS Planned sale	1.7 RYAN ARTHUR F Non-Executive Director	3 -0.0% 772.76 US$2,318	3 -0.0%	772.76	US$2,318
2026-04-03	2026-04-01	PlS Planned sale	1.7 RYAN ARTHUR F Non-Executive Director	1 -0.0% 771.32 US$771	1 -0.0%	771.32	US$771
2026-03-03	2026-03-02	PlS Planned sale	1.7 RYAN ARTHUR F Non-Executive Director	20 -0.1% 789.28 US$15,786	20 -0.1%	789.28	US$15,786
2026-03-03	2026-03-02	PlS Planned sale	1.7 RYAN ARTHUR F Non-Executive Director	20 -0.1% 788.96 US$15,779	20 -0.1%	788.96	US$15,779
2026-03-03	2026-03-02	PlS Planned sale	1.7 RYAN ARTHUR F Non-Executive Director	2 -0.0% 787.34 US$1,575	2 -0.0%	787.34	US$1,575
2026-03-03	2026-03-02	PlS Planned sale	1.7 RYAN ARTHUR F Non-Executive Director	7 -0.0% 786.61 US$5,506	7 -0.0%	786.61	US$5,506
2026-03-03	2026-03-02	PlS Planned sale	1.7 RYAN ARTHUR F Non-Executive Director	11 -0.1% 785.48 US$8,640	11 -0.1%	785.48	US$8,640
2026-03-03	2026-03-02	PlS Planned sale	1.7 RYAN ARTHUR F Non-Executive Director	9 -0.1% 784.48 US$7,060	9 -0.1%	784.48	US$7,060
2026-03-03	2026-03-02	PlS Planned sale	1.7 RYAN ARTHUR F Non-Executive Director	10 -0.1% 783.62 US$7,836	10 -0.1%	783.62	US$7,836
2026-03-03	2026-03-02	PlS Planned sale	1.7 RYAN ARTHUR F Non-Executive Director	2 -0.0% 782.62 US$1,565	2 -0.0%	782.62	US$1,565
2026-03-03	2026-03-02	PlS Planned sale	1.7 RYAN ARTHUR F Non-Executive Director	2 -0.0% 781.21 US$1,562	2 -0.0%	781.21	US$1,562
2026-03-03	2026-03-02	PlS Planned sale	1.7 RYAN ARTHUR F Non-Executive Director	3 -0.0% 780.69 US$2,342	3 -0.0%	780.69	US$2,342
2026-03-03	2026-03-02	PlS Planned sale	1.7 RYAN ARTHUR F Non-Executive Director	5 -0.0% 779.69 US$3,898	5 -0.0%	779.69	US$3,898
2026-03-03	2026-03-02	PlS Planned sale	1.7 RYAN ARTHUR F Non-Executive Director	2 -0.0% 778.30 US$1,557	2 -0.0%	778.30	US$1,557
2026-03-03	2026-03-02	PlS Planned sale	1.7 RYAN ARTHUR F Non-Executive Director	7 -0.0% 777.46 US$5,442	7 -0.0%	777.46	US$5,442
2026-02-23	2026-02-19	PlS Planned sale	0.9 Zoghbi Huda Y Non-Executive Director	4 -0.2% 790.00 US$3,160	4 -0.2%	790.00	US$3,160
2026-02-23	2026-02-19	PlS Planned sale	0.9 Zoghbi Huda Y Non-Executive Director	56 -3.2% 785.61 US$43,994	56 -3.2%	785.61	US$43,994
2026-02-23	2026-02-19	PlS Planned sale	0.9 Zoghbi Huda Y Non-Executive Director	160 -8.3% 784.45 US$125,512	160 -8.3%	784.45	US$125,512
2026-02-23	2026-02-19	PlS Planned sale	0.9 Zoghbi Huda Y Non-Executive Director	220 -10.3% 783.29 US$172,324	220 -10.3%	783.29	US$172,324
2026-02-23	2026-02-19	PlS Planned sale	0.9 Zoghbi Huda Y Non-Executive Director	298 -12.2% 782.10 US$233,066	298 -12.2%	782.10	US$233,066
2026-02-23	2026-02-19	PlS Planned sale	0.9 Zoghbi Huda Y Non-Executive Director	209 -7.9% 781.28 US$163,288	209 -7.9%	781.28	US$163,288
2026-02-23	2026-02-19	PlS Planned sale	0.9 Zoghbi Huda Y Non-Executive Director	331 -11.1% 780.45 US$258,329	331 -11.1%	780.45	US$258,329
2026-02-23	2026-02-19	PlS Planned sale	0.9 Zoghbi Huda Y Non-Executive Director	208 -6.5% 779.55 US$162,146	208 -6.5%	779.55	US$162,146
2026-02-23	2026-02-19	PlS Planned sale	0.9 Zoghbi Huda Y Non-Executive Director	53 -1.6% 778.47 US$41,259	53 -1.6%	778.47	US$41,259
2026-02-23	2026-02-19	PlS Planned sale	0.9 Zoghbi Huda Y Non-Executive Director	50 -1.5% 775.50 US$38,775	50 -1.5%	775.50	US$38,775
2026-02-23	2026-02-19	PlS Planned sale	0.9 Zoghbi Huda Y Non-Executive Director	49 -1.5% 774.68 US$37,959	49 -1.5%	774.68	US$37,959
2026-02-19	2026-02-19	PrS Proposed sale	0.9 Zoghbi Huda Y Director Non-Executive Director	1,638 790.00 US$1,294,020	1,638	790.00	US$1,294,020
2026-02-11	2026-02-09	PlS Planned sale	1.7 RYAN ARTHUR F Non-Executive Director	1 -0.0% 787.82 US$788	1 -0.0%	787.82	US$788
2026-02-11	2026-02-09	PlS Planned sale	1.7 RYAN ARTHUR F Non-Executive Director	2 -0.0% 786.29 US$1,573	2 -0.0%	786.29	US$1,573
2026-02-11	2026-02-09	PlS Planned sale	1.7 RYAN ARTHUR F Non-Executive Director	1 -0.0% 785.71 US$786	1 -0.0%	785.71	US$786
2026-02-11	2026-02-09	PlS Planned sale	1.7 RYAN ARTHUR F Non-Executive Director	1 -0.0% 784.59 US$785	1 -0.0%	784.59	US$785
2026-02-11	2026-02-09	PlS Planned sale	1.7 RYAN ARTHUR F Non-Executive Director	3 -0.0% 783.34 US$2,350	3 -0.0%	783.34	US$2,350
2026-02-11	2026-02-09	PlS Planned sale	1.7 RYAN ARTHUR F Non-Executive Director	1 -0.0% 782.53 US$783	1 -0.0%	782.53	US$783
2026-02-11	2026-02-09	PlS Planned sale	1.7 RYAN ARTHUR F Non-Executive Director	5 -0.0% 781.48 US$3,907	5 -0.0%	781.48	US$3,907
2026-02-11	2026-02-09	PlS Planned sale	1.7 RYAN ARTHUR F Non-Executive Director	1 -0.0% 780.09 US$780	1 -0.0%	780.09	US$780
2026-02-11	2026-02-09	PlS Planned sale	1.7 RYAN ARTHUR F Non-Executive Director	5 -0.0% 779.41 US$3,897	5 -0.0%	779.41	US$3,897
2026-02-11	2026-02-09	PlS Planned sale	1.7 RYAN ARTHUR F Non-Executive Director	12 -0.1% 778.53 US$9,342	12 -0.1%	778.53	US$9,342
2026-02-11	2026-02-09	PlS Planned sale	1.7 RYAN ARTHUR F Non-Executive Director	57 -0.3% 777.56 US$44,321	57 -0.3%	777.56	US$44,321
2026-02-11	2026-02-09	PlS Planned sale	1.7 RYAN ARTHUR F Non-Executive Director	10 -0.1% 776.59 US$7,766	10 -0.1%	776.59	US$7,766
2026-02-11	2026-02-09	PlS Planned sale	1.7 RYAN ARTHUR F Non-Executive Director	1 -0.0% 775.63 US$776	1 -0.0%	775.63	US$776
2026-02-11	2026-02-09	PlS Planned sale	2.4 Pitofsky Jason SVP Controller Officer	53 -1.2% 785.72 US$41,643	53 -1.2%	785.72	US$41,643
2026-02-11	2026-02-09	PlS Planned sale	2.4 Pitofsky Jason SVP Controller Officer	1 -0.0% 784.66 US$785	1 -0.0%	784.66	US$785
2026-02-11	2026-02-09	PlS Planned sale	2.4 Pitofsky Jason SVP Controller Officer	144 -3.2% 783.23 US$112,785	144 -3.2%	783.23	US$112,785
2026-02-11	2026-02-09	PlS Planned sale	2.4 Pitofsky Jason SVP Controller Officer	37 -0.8% 782.67 US$28,959	37 -0.8%	782.67	US$28,959
2026-02-11	2026-02-09	PlS Planned sale	2.4 Pitofsky Jason SVP Controller Officer	26 -0.6% 781.37 US$20,316	26 -0.6%	781.37	US$20,316
2026-02-11	2026-02-09	PlS Planned sale	2.4 Pitofsky Jason SVP Controller Officer	75 -1.6% 780.06 US$58,504	75 -1.6%	780.06	US$58,504
2026-02-11	2026-02-09	PlS Planned sale	2.4 Pitofsky Jason SVP Controller Officer	205 -4.3% 779.56 US$159,810	205 -4.3%	779.56	US$159,810
2026-02-11	2026-02-09	PlS Planned sale	2.4 Pitofsky Jason SVP Controller Officer	563 -10.5% 778.35 US$438,211	563 -10.5%	778.35	US$438,211
2026-02-11	2026-02-09	PlS Planned sale	2.4 Pitofsky Jason SVP Controller Officer	391 -6.8% 777.51 US$304,006	391 -6.8%	777.51	US$304,006
2026-02-11	2026-02-09	PlS Planned sale	2.4 Pitofsky Jason SVP Controller Officer	521 -8.3% 776.43 US$404,520	521 -8.3%	776.43	US$404,520
2026-02-11	2026-02-09	PlS Planned sale	2.4 Pitofsky Jason SVP Controller Officer	20 -0.3% 775.95 US$15,519	20 -0.3%	775.95	US$15,519
2026-02-09	2026-02-09	PrS Proposed sale	1.7 Arthur F. Ryan Director Non-Executive Director	400 785.51 US$314,204	400	785.51	US$314,204
2026-02-09	2026-02-09	PrS Proposed sale	2.4 Pitofsky Jason Officer Officer	2,036 783.17 US$1,594,534	2,036	783.17	US$1,594,534
2026-01-08	2026-01-07	PlS Planned sale	2.5 Bassler Bonnie L Non-Executive Director	1,500 -46.8% 800.00 US$1,200,000	1,500 -46.8%	800.00	US$1,200,000
2026-01-07	2026-01-07	PrS Proposed sale	2.5 Bassler Bonnie L Director Non-Executive Director	1,500 800.00 US$1,200,000	1,500	800.00	US$1,200,000
2025-11-24	2025-11-20	PlS Planned sale	2.5 Bassler Bonnie L Non-Executive Director	760 -32.9% 750.00 US$570,000	760 -32.9%	750.00	US$570,000