$REGN

📈 Chart

143 transactions across 15 dates · last 180 days

6-Month Buy/Sell Trend

Buys Sells
2026-04-01
▼ 9 sells · $78K
Insider Title Type Shares Price $ Value 10b5-1 Filed
RYAN ARTHUR F ▼ Sell 1 $771 $771 Plan Apr 3
RYAN ARTHUR F ▼ Sell 3 $773 $2K Plan Apr 3
RYAN ARTHUR F ▼ Sell 8 $774 $6K Plan Apr 3
RYAN ARTHUR F ▼ Sell 8 $775 $6K Plan Apr 3
RYAN ARTHUR F ▼ Sell 14 $776 $11K Plan Apr 3
RYAN ARTHUR F ▼ Sell 13 $777 $10K Plan Apr 3
RYAN ARTHUR F ▼ Sell 9 $777 $7K Plan Apr 3
RYAN ARTHUR F ▼ Sell 4 $778 $3K Plan Apr 3
RYAN ARTHUR F ▼ Sell 40 $780 $31K Plan Apr 3
2026-03-02
▼ 13 sells · $79K
Insider Title Type Shares Price $ Value 10b5-1 Filed
RYAN ARTHUR F ▼ Sell 7 $777 $5K Plan Mar 3
RYAN ARTHUR F ▼ Sell 2 $778 $2K Plan Mar 3
RYAN ARTHUR F ▼ Sell 5 $780 $4K Plan Mar 3
RYAN ARTHUR F ▼ Sell 3 $781 $2K Plan Mar 3
RYAN ARTHUR F ▼ Sell 2 $781 $2K Plan Mar 3
RYAN ARTHUR F ▼ Sell 2 $783 $2K Plan Mar 3
RYAN ARTHUR F ▼ Sell 10 $784 $8K Plan Mar 3
RYAN ARTHUR F ▼ Sell 9 $784 $7K Plan Mar 3
RYAN ARTHUR F ▼ Sell 11 $785 $9K Plan Mar 3
RYAN ARTHUR F ▼ Sell 7 $787 $6K Plan Mar 3
RYAN ARTHUR F ▼ Sell 2 $787 $2K Plan Mar 3
RYAN ARTHUR F ▼ Sell 20 $789 $16K Plan Mar 3
RYAN ARTHUR F ▼ Sell 20 $789 $16K Plan Mar 3
2026-02-19
▼ 11 sells · $1.3M 2 other
Insider Title Type Shares Price $ Value 10b5-1 Filed
Zoghbi Huda Y M 1,638 $377 $617K Plan Feb 23
Zoghbi Huda Y ▼ Sell 49 $775 $38K Plan Feb 23
Zoghbi Huda Y ▼ Sell 50 $776 $39K Plan Feb 23
Zoghbi Huda Y ▼ Sell 53 $778 $41K Plan Feb 23
Zoghbi Huda Y ▼ Sell 208 $780 $162K Plan Feb 23
Zoghbi Huda Y ▼ Sell 331 $780 $258K Plan Feb 23
Zoghbi Huda Y ▼ Sell 209 $781 $163K Plan Feb 23
Zoghbi Huda Y ▼ Sell 298 $782 $233K Plan Feb 23
Zoghbi Huda Y ▼ Sell 220 $783 $172K Plan Feb 23
Zoghbi Huda Y ▼ Sell 160 $784 $126K Plan Feb 23
Zoghbi Huda Y ▼ Sell 56 $786 $44K Plan Feb 23
Zoghbi Huda Y ▼ Sell 4 $790 $3K Plan Feb 23
Zoghbi Huda Y M 1,638 $0 $0 Plan Feb 23
2026-02-09
▼ 24 sells · $1.7M 2 other
⚡ 2 insiders
Insider Title Type Shares Price $ Value 10b5-1 Filed
Pitofsky Jason SVP Controller M 1,000 $492 $492K Plan Feb 11
Pitofsky Jason SVP Controller ▼ Sell 20 $776 $16K Plan Feb 11
Pitofsky Jason SVP Controller ▼ Sell 521 $776 $405K Plan Feb 11
Pitofsky Jason SVP Controller ▼ Sell 391 $778 $304K Plan Feb 11
Pitofsky Jason SVP Controller ▼ Sell 563 $778 $438K Plan Feb 11
Pitofsky Jason SVP Controller ▼ Sell 205 $780 $160K Plan Feb 11
Pitofsky Jason SVP Controller ▼ Sell 75 $780 $59K Plan Feb 11
Pitofsky Jason SVP Controller ▼ Sell 26 $781 $20K Plan Feb 11
Pitofsky Jason SVP Controller ▼ Sell 37 $783 $29K Plan Feb 11
Pitofsky Jason SVP Controller ▼ Sell 144 $783 $113K Plan Feb 11
Pitofsky Jason SVP Controller ▼ Sell 1 $785 $785 Plan Feb 11
Pitofsky Jason SVP Controller ▼ Sell 53 $786 $42K Plan Feb 11
Pitofsky Jason SVP Controller M 1,000 $0 $0 Plan Feb 11
RYAN ARTHUR F ▼ Sell 1 $776 $776 Plan Feb 11
RYAN ARTHUR F ▼ Sell 10 $777 $8K Plan Feb 11
RYAN ARTHUR F ▼ Sell 57 $778 $44K Plan Feb 11
RYAN ARTHUR F ▼ Sell 12 $779 $9K Plan Feb 11
RYAN ARTHUR F ▼ Sell 5 $779 $4K Plan Feb 11
RYAN ARTHUR F ▼ Sell 1 $780 $780 Plan Feb 11
RYAN ARTHUR F ▼ Sell 5 $781 $4K Plan Feb 11
RYAN ARTHUR F ▼ Sell 1 $783 $783 Plan Feb 11
RYAN ARTHUR F ▼ Sell 3 $783 $2K Plan Feb 11
RYAN ARTHUR F ▼ Sell 1 $785 $785 Plan Feb 11
RYAN ARTHUR F ▼ Sell 1 $786 $786 Plan Feb 11
RYAN ARTHUR F ▼ Sell 2 $786 $2K Plan Feb 11
RYAN ARTHUR F ▼ Sell 1 $788 $788 Plan Feb 11
2026-01-07
▼ 1 sell · $1.2M 2 other
Insider Title Type Shares Price $ Value 10b5-1 Filed
Bassler Bonnie L M 1,500 $374 $561K Plan Jan 8
Bassler Bonnie L ▼ Sell 1,500 $800 $1.2M Plan Jan 8
Bassler Bonnie L M 1,500 $0 $0 Plan Jan 8
2026-01-02
22 other
⚡ 11 insiders
Insider Title Type Shares Price $ Value 10b5-1 Filed
BROWN MICHAEL S A 155 $0 $0 Jan 6
BROWN MICHAEL S A 1,962 $0 $0 Jan 6
Bassler Bonnie L A 155 $0 $0 Jan 6
Bassler Bonnie L A 1,962 $0 $0 Jan 6
COLES N ANTHONY A 155 $0 $0 Jan 6
COLES N ANTHONY A 1,962 $0 $0 Jan 6
GOLDSTEIN JOSEPH L A 155 $0 $0 Jan 6
GOLDSTEIN JOSEPH L A 1,962 $0 $0 Jan 6
Guarini Kathryn A 155 $0 $0 Jan 6
Guarini Kathryn A 1,962 $0 $0 Jan 6
POON CHRISTINE A A 155 $0 $0 Jan 6
POON CHRISTINE A A 1,962 $0 $0 Jan 6
RYAN ARTHUR F A 155 $0 $0 Jan 6
RYAN ARTHUR F A 1,962 $0 $0 Jan 6
SING GEORGE L A 155 $0 $0 Jan 6
SING GEORGE L A 1,962 $0 $0 Jan 6
Thompson Craig B. A 155 $0 $0 Jan 6
Thompson Craig B. A 1,962 $0 $0 Jan 6
Schenkein David P A 155 $0 $0 Jan 6
Schenkein David P A 1,962 $0 $0 Jan 6
Zoghbi Huda Y A 155 $0 $0 Jan 6
Zoghbi Huda Y A 1,962 $0 $0 Jan 6
2025-12-31
6 other
⚡ 2 insiders
Insider Title Type Shares Price $ Value 10b5-1 Filed
SCHLEIFER LEONARD S Bd. Co-Chair, President & CEO M 28,570 $0 $0 Jan 5
SCHLEIFER LEONARD S Bd. Co-Chair, President & CEO F 28,570 $772 $22.1M Jan 5
SCHLEIFER LEONARD S Bd. Co-Chair, President & CEO M 28,570 $0 $0 Jan 5
YANCOPOULOS GEORGE Bd. Co-Chair, President & CSO M 28,570 $0 $0 Jan 5
YANCOPOULOS GEORGE Bd. Co-Chair, President & CSO F 28,570 $772 $22.1M Jan 5
YANCOPOULOS GEORGE Bd. Co-Chair, President & CSO M 28,570 $0 $0 Jan 5
2025-12-30
3 other
Insider Title Type Shares Price $ Value 10b5-1 Filed
SING GEORGE L M 9,212 $520 $4.8M Dec 31
SING GEORGE L F 6,188 $774 $4.8M Dec 31
SING GEORGE L M 9,212 $0 $0 Dec 31
2025-12-09
9 other
⚡ 5 insiders
Insider Title Type Shares Price $ Value 10b5-1 Filed
MURPHY ANDREW J EVP Research F 4,229 $702 $3.0M Dec 11
McCourt Marion EVP Commercial F 1,021 $702 $716K Dec 11
SCHLEIFER LEONARD S Bd. Co-Chair, President & CEO M 172,723 $556 $96.0M Dec 11
SCHLEIFER LEONARD S Bd. Co-Chair, President & CEO F 155,145 $702 $108.8M Dec 11
SCHLEIFER LEONARD S Bd. Co-Chair, President & CEO M 172,723 $0 $0 Dec 11
YANCOPOULOS GEORGE Bd. Co-Chair, President & CSO M 146,815 $556 $81.6M Dec 11
YANCOPOULOS GEORGE Bd. Co-Chair, President & CSO F 131,874 $702 $92.5M Dec 11
YANCOPOULOS GEORGE Bd. Co-Chair, President & CSO M 146,815 $0 $0 Dec 11
Van Plew Daniel P EVP & General Mgr, Industrial F 2,552 $702 $1.8M Dec 11
2025-12-05
12 other
⚡ 6 insiders
Insider Title Type Shares Price $ Value 10b5-1 Filed
Fenimore Christopher R. EVP Finance CFO A 3,027 $0 $0 Dec 9
Fenimore Christopher R. EVP Finance CFO A 14,924 $0 $0 Dec 9
LAROSA JOSEPH J EVP General Counsel and Secret A 2,476 $0 $0 Dec 9
LAROSA JOSEPH J EVP General Counsel and Secret A 12,210 $0 $0 Dec 9
MURPHY ANDREW J EVP Research A 3,715 $0 $0 Dec 9
MURPHY ANDREW J EVP Research A 18,315 $0 $0 Dec 9
McCourt Marion EVP Commercial A 2,476 $0 $0 Dec 9
McCourt Marion EVP Commercial A 12,210 $0 $0 Dec 9
Pitofsky Jason VP Controller A 2,064 $0 $0 Dec 9
Pitofsky Jason VP Controller A 2,261 $0 $0 Dec 9
Van Plew Daniel P EVP & General Mgr, Industrial A 3,715 $0 $0 Dec 9
Van Plew Daniel P EVP & General Mgr, Industrial A 18,315 $0 $0 Dec 9
2025-12-08
6 other
⚡ 6 insiders
Insider Title Type Shares Price $ Value 10b5-1 Filed
Fenimore Christopher R. EVP Finance CFO F 992 $713 $707K Dec 9
LAROSA JOSEPH J EVP General Counsel and Secret F 1,396 $713 $995K Dec 9
MURPHY ANDREW J EVP Research F 1,699 $713 $1.2M Dec 9
McCourt Marion EVP Commercial F 1,336 $713 $952K Dec 9
Pitofsky Jason VP Controller F 989 $713 $705K Dec 9
Van Plew Daniel P EVP & General Mgr, Industrial F 1,906 $713 $1.4M Dec 9
2025-11-20
▼ 1 sell · $570K 5 other
⚡ 2 insiders
Insider Title Type Shares Price $ Value 10b5-1 Filed
Bassler Bonnie L M 760 $371 $282K Plan Nov 24
Bassler Bonnie L ▼ Sell 760 $750 $570K Plan Nov 24
Bassler Bonnie L M 760 $0 $0 Plan Nov 24
LAROSA JOSEPH J EVP General Counsel and Secret M 14,450 $556 $8.0M Nov 24
LAROSA JOSEPH J EVP General Counsel and Secret F 12,686 $737 $9.3M Nov 24
LAROSA JOSEPH J EVP General Counsel and Secret M 14,450 $0 $0 Nov 24
2025-11-07
▼ 1 sell · $281K
Insider Title Type Shares Price $ Value 10b5-1 Filed
Pitofsky Jason VP Controller ▼ Sell 431 $651 $281K Nov 10
2025-10-29
▼ 6 sells · $4.3M 5 other
⚡ 2 insiders
Insider Title Type Shares Price $ Value 10b5-1 Filed
MURPHY ANDREW J EVP Research M 35,000 $556 $19.4M Oct 31
MURPHY ANDREW J EVP Research F 32,490 $649 $21.1M Oct 31
MURPHY ANDREW J EVP Research M 35,000 $0 $0 Oct 31
POON CHRISTINE A M 6,500 $520 $3.4M Oct 31
POON CHRISTINE A ▼ Sell 650 $653 $424K Oct 31
POON CHRISTINE A ▼ Sell 2,735 $654 $1.8M Oct 31
POON CHRISTINE A ▼ Sell 1,915 $654 $1.3M Oct 31
POON CHRISTINE A ▼ Sell 100 $655 $66K Oct 31
POON CHRISTINE A ▼ Sell 712 $656 $467K Oct 31
POON CHRISTINE A ▼ Sell 388 $657 $255K Oct 31
POON CHRISTINE A M 6,500 $0 $0 Oct 31
2025-10-30
3 other
⚡ 2 insiders
Insider Title Type Shares Price $ Value 10b5-1 Filed
MURPHY ANDREW J EVP Research G 1,538 $0 $0 Oct 31
POON CHRISTINE A M 2,712 $520 $1.4M Oct 31
POON CHRISTINE A M 2,712 $0 $0 Oct 31