Leonard S. Schleifer
Known title: President & CEOCIK: 0001218629
Associated companies
Transaction History
| REGN | ▲ Buy | Option Exercise | 28,570 | $0 | 12/31/2025 | View on chart |
| REGN | ▼ Sell | Tax Withholding | 28,570 | $22.1M | 12/31/2025 | View on chart |
| REGN | ▼ Sell | Tax Withholding | 155,145 | $108.8M | 12/9/2025 | View on chart |
| REGN | ▲ Buy | Option Exercise | 172,723 | $96.0M | 12/9/2025 | View on chart |
| REGN | ▼ Sell | Open Market | 14,879 | $15.1M | 6/12/2024 | View on chart |
| REGN | ▼ Sell | Open Market | 270 | $274K | 6/12/2024 | View on chart |
| REGN | ▼ Sell | Other | 1,000 | $0 | 6/12/2024 | View on chart |
| REGN | ▼ Sell | Open Market | 1,000 | $1.0M | 6/12/2024 | View on chart |
| REGN | ▼ Sell | Open Market | 7,321 | $7.4M | 6/11/2024 | View on chart |
| REGN | ▼ Sell | Open Market | 1,743 | $1.8M | 6/11/2024 | View on chart |
| REGN | ▼ Sell | Open Market | 787 | $799K | 6/6/2024 | View on chart |
| REGN | ▼ Sell | Open Market | 143 | $140K | 5/17/2024 | View on chart |
| REGN | ▼ Sell | Open Market | 22,687 | $22.2M | 5/17/2024 | View on chart |
| REGN | ▼ Sell | Open Market | 295 | $289K | 5/15/2024 | View on chart |
| REGN | ▼ Sell | Open Market | 228 | $225K | 5/15/2024 | View on chart |
| REGN | ▼ Sell | Open Market | 281 | $277K | 5/15/2024 | View on chart |
| REGN | ▼ Sell | Open Market | 103 | $102K | 5/15/2024 | View on chart |
| REGN | ▼ Sell | Open Market | 235 | $231K | 5/15/2024 | View on chart |
| REGN | ▼ Sell | Open Market | 299 | $296K | 5/15/2024 | View on chart |
| REGN | ▼ Sell | Open Market | 7,864 | $7.7M | 5/15/2024 | View on chart |
| REGN | ▼ Sell | Open Market | 1,081 | $1.1M | 5/15/2024 | View on chart |
| REGN | ▼ Sell | Open Market | 305 | $300K | 5/15/2024 | View on chart |
| REGN | ▼ Sell | Open Market | 250 | $246K | 5/15/2024 | View on chart |
| REGN | ▼ Sell | Open Market | 22,698 | $22.2M | 5/14/2024 | View on chart |
| REGN | ▼ Sell | Open Market | 2,302 | $2.3M | 5/14/2024 | View on chart |
| REGN | ▼ Sell | Tax Withholding | 144,433 | $141.1M | 5/13/2024 | View on chart |
| REGN | ▲ Buy | Option Exercise | 203,204 | $81.2M | 5/13/2024 | View on chart |
| REGN | ▲ Buy | Option Exercise | 25,155 | — | 12/11/2023 | View on chart |
| REGN | ▼ Sell | Tax Withholding | 12,841 | $10.8M | 12/11/2023 | View on chart |
| REGN | ▼ Sell | Gift | 53,807 | $0 | 5/15/2023 | View on chart |
| REGN | ▼ Sell | Gift | 53,807 | $0 | 5/15/2023 | View on chart |
| REGN | ▼ Sell | Open Market | 2,653 | $1.9M | 4/6/2022 | View on chart |
| REGN | ▼ Sell | Open Market | 4,461 | $3.2M | 4/5/2022 | View on chart |
| REGN | ▼ Sell | Open Market | 2,886 | $2.0M | 3/31/2022 | View on chart |
| REGN | ▲ Buy | Option Exercise | 239,063 | $64.6M | 11/19/2021 | View on chart |
| REGN | ▲ Buy | Option Exercise | 281,250 | $50.4M | 11/19/2021 | View on chart |
| REGN | ▼ Sell | Tax Withholding | 173,491 | $113.1M | 11/19/2021 | View on chart |
| REGN | ▼ Sell | Tax Withholding | 185,646 | $121.0M | 11/19/2021 | View on chart |
| REGN | ▼ Sell | Open Market | 10,000 | $6.6M | 8/19/2021 | View on chart |
| REGN | ▼ Sell | Open Market | 200,000 | $130.0M | 8/18/2021 | View on chart |
| REGN | ▼ Sell | Open Market | 258 | $159K | 8/16/2021 | View on chart |
| REGN | ▼ Sell | Open Market | 675 | $424K | 8/16/2021 | View on chart |
| REGN | ▼ Sell | Open Market | 303 | $191K | 8/16/2021 | View on chart |
| REGN | ▼ Sell | Open Market | 171 | $105K | 8/16/2021 | View on chart |
| REGN | ▼ Sell | Open Market | 146 | $90K | 8/16/2021 | View on chart |
| REGN | ▼ Sell | Open Market | 90 | $56K | 8/16/2021 | View on chart |
| REGN | ▼ Sell | Open Market | 34 | $21K | 8/16/2021 | View on chart |
| REGN | ▼ Sell | Open Market | 96 | $60K | 8/16/2021 | View on chart |
| REGN | ▼ Sell | Open Market | 287 | $178K | 8/16/2021 | View on chart |
| REGN | ▼ Sell | Open Market | 1,355 | $847K | 8/16/2021 | View on chart |
| REGN | ▼ Sell | Open Market | 295 | $185K | 8/16/2021 | View on chart |
| REGN | ▼ Sell | Open Market | 1,111 | $697K | 8/16/2021 | View on chart |
| REGN | ▼ Sell | Open Market | 924 | $575K | 8/16/2021 | View on chart |
| REGN | ▼ Sell | Open Market | 2,393 | $1.5M | 8/16/2021 | View on chart |
| REGN | ▼ Sell | Open Market | 1,862 | $1.2M | 8/16/2021 | View on chart |
AI Market Commentary
AI-generatedAll commentary →Synthesized from recent news and fundamentals/technical data -- not human analyst commentary or trader sentiment.
October 17, 2026
Regeneron Gets EU Approval for Libtayo Dosing, UBS Upgrades Stock
Regeneron received a positive recommendation from the EU's CHMP for an updated Libtayo dosing regimen across all approved cancer types. This regulatory progress follows strong earnings and new Phase III data for a treatment for FOP. UBS recently upgraded the stock to Buy and raised its price target to $978, citing the company's potential value.
Regeneron Gets EU Approval for Libtayo Dosing, UBS Upgrades Stock. Regeneron received a positive recommendation from the EU's CHMP for an updated Libtayo dosing regimen across all approved cancer types. This regulatory progress follows strong earnings and new Phase III data for a treatment for FOP. UBS recently upgraded the stock to Buy and raised its price target to $978, citing the company's potential value.