REGN
REGENERON PHARMACEUTICALS, INC.
Buys$00 txns
Sells$13.9M121 txns
Net-$13.9M
Insiders
| Insider | Role | Holdings | Buy $ | Sell $ | Net $ |
|---|
| Christine A Poon | Director | 5,219 | — | $4,252,745 | -$4,252,745 |
| Marion McCourt | EVP Commercial | 14,349 | — | $3,077,400 | -$3,077,400 |
| Huda Y Zoghbi | Director | 1,703 | — | $1,919,812 | -$1,919,812 |
| Jason Pitofsky | SVP Controller | 4,272 | — | $1,865,824 | -$1,865,824 |
| Bonnie L Bassler | Director | 1,703 | — | $1,770,000 | -$1,770,000 |
| Arthur F Ryan | Director | 17,303 | — | $657,430 | -$657,430 |
| Kathryn Guarini | Director | 603 | — | $320,000 | -$320,000 |
Transaction History
| Date | Insider | Side | Shares | Price | Value | Holdings After | % of Position |
|---|
| 2026-08-10 | Kathryn Guarini | SELL | 400 | $800.00 | $320,000 | 603 | 40% |
| 2026-08-10 | Huda Y Zoghbi | SELL | 800 | $800.00 | $640,000 | 1,703 | 32% |
| 2026-07-02 | Arthur F Ryan | SELL | 200 | $650.15 | $130,030 | 17,303 | 1% |
| 2026-05-01 | Arthur F Ryan | SELL | 5 | $701.76 | $3,509 | 17,598 | 0% |
| 2026-05-01 | Arthur F Ryan | SELL | 15 | $702.46 | $10,537 | 17,583 | 0% |
| 2026-05-01 | Arthur F Ryan | SELL | 24 | $703.46 | $16,883 | 17,559 | 0% |
| 2026-05-01 | Arthur F Ryan | SELL | 15 | $704.28 | $10,564 | 17,544 | 0% |
| 2026-05-01 | Arthur F Ryan | SELL | 14 | $705.56 | $9,878 | 17,530 | 0% |
| 2026-05-01 | Arthur F Ryan | SELL | 7 | $706.74 | $4,947 | 17,523 | 0% |
| 2026-05-01 | Arthur F Ryan | SELL | 4 | $707.40 | $2,830 | 17,519 | 0% |
| 2026-05-01 | Arthur F Ryan | SELL | 6 | $709.45 | $4,257 | 17,513 | 0% |
| 2026-05-01 | Arthur F Ryan | SELL | 2 | $710.87 | $1,422 | 17,511 | 0% |
| 2026-05-01 | Arthur F Ryan | SELL | 5 | $711.49 | $3,557 | 17,506 | 0% |
| 2026-05-01 | Arthur F Ryan | SELL | 1 | $712.09 | $712 | 17,505 | 0% |
| 2026-05-01 | Arthur F Ryan | SELL | 2 | $714.13 | $1,428 | 17,503 | 0% |
| 2026-04-01 | Arthur F Ryan | SELL | 1 | $771.32 | $771 | 17,702 | 0% |
| 2026-04-01 | Arthur F Ryan | SELL | 3 | $772.76 | $2,318 | 17,699 | 0% |
| 2026-04-01 | Arthur F Ryan | SELL | 8 | $773.59 | $6,189 | 17,691 | 0% |
| 2026-04-01 | Arthur F Ryan | SELL | 8 | $774.58 | $6,197 | 17,683 | 0% |
| 2026-04-01 | Arthur F Ryan | SELL | 14 | $775.58 | $10,858 | 17,669 | 0% |
| 2026-04-01 | Arthur F Ryan | SELL | 13 | $776.62 | $10,096 | 17,656 | 0% |
| 2026-04-01 | Arthur F Ryan | SELL | 9 | $777.42 | $6,997 | 17,647 | 0% |
| 2026-04-01 | Arthur F Ryan | SELL | 4 | $778.24 | $3,113 | 17,643 | 0% |
| 2026-04-01 | Arthur F Ryan | SELL | 40 | $779.71 | $31,188 | 17,603 | 0% |
| 2026-03-02 | Arthur F Ryan | SELL | 7 | $777.46 | $5,442 | 17,796 | 0% |
| 2026-03-02 | Arthur F Ryan | SELL | 2 | $778.30 | $1,557 | 17,794 | 0% |
| 2026-03-02 | Arthur F Ryan | SELL | 5 | $779.69 | $3,898 | 17,789 | 0% |
| 2026-03-02 | Arthur F Ryan | SELL | 3 | $780.69 | $2,342 | 17,786 | 0% |
| 2026-03-02 | Arthur F Ryan | SELL | 2 | $781.21 | $1,562 | 17,784 | 0% |
| 2026-03-02 | Arthur F Ryan | SELL | 2 | $782.62 | $1,565 | 17,782 | 0% |
| 2026-03-02 | Arthur F Ryan | SELL | 10 | $783.62 | $7,836 | 17,772 | 0% |
| 2026-03-02 | Arthur F Ryan | SELL | 9 | $784.48 | $7,060 | 17,763 | 0% |
| 2026-03-02 | Arthur F Ryan | SELL | 11 | $785.48 | $8,640 | 17,752 | 0% |
| 2026-03-02 | Arthur F Ryan | SELL | 7 | $786.61 | $5,506 | 17,745 | 0% |
| 2026-03-02 | Arthur F Ryan | SELL | 2 | $787.34 | $1,575 | 17,743 | 0% |
| 2026-03-02 | Arthur F Ryan | SELL | 20 | $788.96 | $15,779 | 17,723 | 0% |
| 2026-03-02 | Arthur F Ryan | SELL | 20 | $789.28 | $15,786 | 17,703 | 0% |
| 2026-02-19 | Huda Y Zoghbi | SELL | 49 | $774.68 | $37,959 | 3,292 | 1% |
| 2026-02-19 | Huda Y Zoghbi | SELL | 50 | $775.50 | $38,775 | 3,242 | 2% |
| 2026-02-19 | Huda Y Zoghbi | SELL | 53 | $778.47 | $41,259 | 3,189 | 2% |
| 2026-02-19 | Huda Y Zoghbi | SELL | 208 | $779.55 | $162,146 | 2,981 | 7% |
| 2026-02-19 | Huda Y Zoghbi | SELL | 331 | $780.45 | $258,329 | 2,650 | 11% |
| 2026-02-19 | Huda Y Zoghbi | SELL | 209 | $781.28 | $163,288 | 2,441 | 8% |
| 2026-02-19 | Huda Y Zoghbi | SELL | 298 | $782.10 | $233,066 | 2,143 | 12% |
| 2026-02-19 | Huda Y Zoghbi | SELL | 220 | $783.29 | $172,324 | 1,923 | 10% |
| 2026-02-19 | Huda Y Zoghbi | SELL | 160 | $784.45 | $125,512 | 1,763 | 8% |
| 2026-02-19 | Huda Y Zoghbi | SELL | 56 | $785.61 | $43,994 | 1,707 | 3% |
| 2026-02-19 | Huda Y Zoghbi | SELL | 4 | $790.00 | $3,160 | 1,703 | 0% |
| 2026-02-09 | Jason Pitofsky | SELL | 20 | $775.95 | $15,519 | 6,288 | 0% |
| 2026-02-09 | Jason Pitofsky | SELL | 521 | $776.43 | $404,520 | 5,767 | 8% |
| 2026-02-09 | Jason Pitofsky | SELL | 391 | $777.51 | $304,006 | 5,376 | 7% |
| 2026-02-09 | Jason Pitofsky | SELL | 563 | $778.35 | $438,211 | 4,813 | 10% |
| 2026-02-09 | Jason Pitofsky | SELL | 205 | $779.56 | $159,810 | 4,608 | 4% |
| 2026-02-09 | Jason Pitofsky | SELL | 75 | $780.06 | $58,504 | 4,533 | 2% |
| 2026-02-09 | Jason Pitofsky | SELL | 26 | $781.37 | $20,316 | 4,507 | 1% |
| 2026-02-09 | Jason Pitofsky | SELL | 37 | $782.67 | $28,959 | 4,470 | 1% |
| 2026-02-09 | Jason Pitofsky | SELL | 144 | $783.23 | $112,785 | 4,326 | 3% |
| 2026-02-09 | Jason Pitofsky | SELL | 1 | $784.66 | $785 | 4,325 | 0% |
| 2026-02-09 | Jason Pitofsky | SELL | 53 | $785.72 | $41,643 | 4,272 | 1% |
| 2026-02-09 | Arthur F Ryan | SELL | 1 | $775.63 | $776 | 17,902 | 0% |
| 2026-02-09 | Arthur F Ryan | SELL | 10 | $776.59 | $7,766 | 17,892 | 0% |
| 2026-02-09 | Arthur F Ryan | SELL | 57 | $777.56 | $44,321 | 17,835 | 0% |
| 2026-02-09 | Arthur F Ryan | SELL | 12 | $778.53 | $9,342 | 17,823 | 0% |
| 2026-02-09 | Arthur F Ryan | SELL | 5 | $779.41 | $3,897 | 17,818 | 0% |
| 2026-02-09 | Arthur F Ryan | SELL | 1 | $780.09 | $780 | 17,817 | 0% |
| 2026-02-09 | Arthur F Ryan | SELL | 5 | $781.48 | $3,907 | 17,812 | 0% |
| 2026-02-09 | Arthur F Ryan | SELL | 1 | $782.53 | $783 | 17,811 | 0% |
| 2026-02-09 | Arthur F Ryan | SELL | 3 | $783.34 | $2,350 | 17,808 | 0% |
| 2026-02-09 | Arthur F Ryan | SELL | 1 | $784.59 | $785 | 17,807 | 0% |
| 2026-02-09 | Arthur F Ryan | SELL | 1 | $785.71 | $786 | 17,806 | 0% |
| 2026-02-09 | Arthur F Ryan | SELL | 2 | $786.29 | $1,573 | 17,804 | 0% |
| 2026-02-09 | Arthur F Ryan | SELL | 1 | $787.82 | $788 | 17,803 | 0% |
| 2026-01-07 | Bonnie L Bassler | SELL | 1,500 | $800.00 | $1,200,000 | 1,703 | 47% |
| 2025-11-20 | Bonnie L Bassler | SELL | 760 | $750.00 | $570,000 | 1,548 | 33% |
| 2025-11-07 | Jason Pitofsky | SELL | 431 | $651.43 | $280,766 | 4,233 | 9% |
| 2025-10-29 | Christine A Poon | SELL | 650 | $652.68 | $424,242 | 8,202 | 7% |
| 2025-10-29 | Christine A Poon | SELL | 2,735 | $653.50 | $1,787,322 | 5,467 | 33% |
| 2025-10-29 | Christine A Poon | SELL | 1,915 | $654.42 | $1,253,214 | 3,552 | 35% |
| 2025-10-29 | Christine A Poon | SELL | 100 | $655.10 | $65,510 | 3,452 | 3% |
| 2025-10-29 | Christine A Poon | SELL | 712 | $656.50 | $467,428 | 2,740 | 21% |
| 2025-10-29 | Christine A Poon | SELL | 388 | $657.29 | $255,029 | 2,352 | 14% |
| 2024-11-01 | Marion McCourt | SELL | 1,000 | $844.61 | $844,610 | 12,931 | 7% |
| 2024-10-01 | Arthur F Ryan | SELL | 3 | $1,041.35 | $3,124 | 17,679 | 0% |
| 2024-10-01 | Arthur F Ryan | SELL | 1 | $1,042.31 | $1,042 | 17,678 | 0% |
| 2024-10-01 | Arthur F Ryan | SELL | 5 | $1,043.39 | $5,217 | 17,673 | 0% |
| 2024-10-01 | Arthur F Ryan | SELL | 9 | $1,044.62 | $9,402 | 17,664 | 0% |
| 2024-10-01 | Arthur F Ryan | SELL | 7 | $1,045.27 | $7,317 | 17,657 | 0% |
| 2024-10-01 | Arthur F Ryan | SELL | 9 | $1,046.53 | $9,419 | 17,648 | 0% |
| 2024-10-01 | Arthur F Ryan | SELL | 12 | $1,047.44 | $12,569 | 17,636 | 0% |
| 2024-10-01 | Arthur F Ryan | SELL | 12 | $1,048.54 | $12,582 | 17,624 | 0% |
| 2024-10-01 | Arthur F Ryan | SELL | 9 | $1,049.68 | $9,447 | 17,615 | 0% |
| 2024-10-01 | Arthur F Ryan | SELL | 6 | $1,050.60 | $6,304 | 17,609 | 0% |
| 2024-10-01 | Arthur F Ryan | SELL | 9 | $1,051.51 | $9,464 | 17,600 | 0% |
| 2024-10-01 | Arthur F Ryan | SELL | 4 | $1,052.44 | $4,210 | 17,596 | 0% |
| 2024-10-01 | Arthur F Ryan | SELL | 4 | $1,053.45 | $4,214 | 17,592 | 0% |
| 2024-10-01 | Arthur F Ryan | SELL | 3 | $1,054.90 | $3,165 | 17,589 | 0% |
| 2024-10-01 | Arthur F Ryan | SELL | 3 | $1,056.68 | $3,170 | 17,586 | 0% |
| 2024-10-01 | Arthur F Ryan | SELL | 2 | $1,057.38 | $2,115 | 17,584 | 0% |
| 2024-10-01 | Arthur F Ryan | SELL | 2 | $1,059.28 | $2,119 | 17,582 | 0% |
| 2024-10-01 | Marion McCourt | SELL | 1,000 | $1,054.06 | $1,054,060 | 12,931 | 7% |
| 2024-09-03 | Marion McCourt | SELL | 1,000 | $1,178.73 | $1,178,730 | 12,931 | 7% |
| 2024-09-03 | Arthur F Ryan | SELL | 4 | $1,166.52 | $4,666 | 17,778 | 0% |
| 2024-09-03 | Arthur F Ryan | SELL | 1 | $1,167.27 | $1,167 | 17,777 | 0% |
| 2024-09-03 | Arthur F Ryan | SELL | 4 | $1,168.99 | $4,676 | 17,773 | 0% |
| 2024-09-03 | Arthur F Ryan | SELL | 4 | $1,170.40 | $4,682 | 17,769 | 0% |
| 2024-09-03 | Arthur F Ryan | SELL | 16 | $1,172.75 | $18,764 | 17,753 | 0% |
| 2024-09-03 | Arthur F Ryan | SELL | 8 | $1,174.32 | $9,395 | 17,745 | 0% |
| 2024-09-03 | Arthur F Ryan | SELL | 8 | $1,175.66 | $9,405 | 17,737 | 0% |
| 2024-09-03 | Arthur F Ryan | SELL | 4 | $1,176.82 | $4,707 | 17,733 | 0% |
| 2024-09-03 | Arthur F Ryan | SELL | 4 | $1,177.73 | $4,711 | 17,729 | 0% |
| 2024-09-03 | Arthur F Ryan | SELL | 4 | $1,178.69 | $4,715 | 17,725 | 0% |
| 2024-09-03 | Arthur F Ryan | SELL | 8 | $1,179.62 | $9,437 | 17,717 | 0% |
| 2024-09-03 | Arthur F Ryan | SELL | 8 | $1,183.47 | $9,468 | 17,709 | 0% |
| 2024-09-03 | Arthur F Ryan | SELL | 1 | $1,184.26 | $1,184 | 17,708 | 0% |
| 2024-09-03 | Arthur F Ryan | SELL | 4 | $1,185.77 | $4,743 | 17,704 | 0% |
| 2024-09-03 | Arthur F Ryan | SELL | 5 | $1,186.19 | $5,931 | 17,699 | 0% |
| 2024-09-03 | Arthur F Ryan | SELL | 3 | $1,187.95 | $3,564 | 17,696 | 0% |
| 2024-09-03 | Arthur F Ryan | SELL | 4 | $1,188.55 | $4,754 | 17,692 | 0% |
| 2024-09-03 | Arthur F Ryan | SELL | 5 | $1,189.13 | $5,946 | 17,687 | 0% |
| 2024-09-03 | Arthur F Ryan | SELL | 1 | $1,190.00 | $1,190 | 17,686 | 0% |
| 2024-09-03 | Arthur F Ryan | SELL | 4 | $1,191.02 | $4,764 | 17,682 | 0% |