YANCOPOULOS GEORGE has filed 64 insider transactions across 1 company since February 2023.
Most recent transaction: a tax payment of 28570 shares of REGENERON PHARMACEUTICALS, INC. ($REGN) on December 31, 2025.
Activity breakdown: 0 open-market purchases and 48 sales.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec. 31, 2025 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | F | Common Stock | 28570 | $772.09 | 1,125,945.0000 | 136,200,000 | 2.47% | 0.02% |
| Dec. 31, 2025 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | M | Common Stock | 28570 | $0.00 | 1,154,515.0000 | 136,200,000 | 2.54% | 0.02% |
| Dec. 31, 2025 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | M | 2020 Performance Stock Units | 28570 | $0.00 | 595,077.0000 | 136,200,000 | 4.58% | 0.02% |
| Dec. 9, 2025 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | M | Common Stock | 146815 | $555.67 | 1,257,819.0000 | 136,200,000 | 13.21% | 0.11% |
| Dec. 9, 2025 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | M | Non-Qualified Stock Option (right to buy) | 146815 | $0.00 | 0.0000 | 136,200,000 | 100.00% | 0.11% |
| Dec. 9, 2025 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | F | Common Stock | 131874 | $701.51 | 1,125,945.0000 | 136,200,000 | 10.48% | 0.10% |
| June 10, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | G | Common Stock | 75799 | $0.00 | 1,110,945.0000 | 134,199,999 | 6.39% | 0.06% |
| June 10, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | G | Common Stock | 37900 | $0.00 | 1,110,945.0000 | 134,199,999 | 3.53% | 0.03% |
| May 16, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | S | Common Stock | 7611 | $974.51 | 1,164,578.0000 | 134,199,999 | 0.65% | 0.01% |
| May 16, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | S | Common Stock | 9242 | $975.48 | 1,155,336.0000 | 134,199,999 | 0.79% | 0.01% |
| May 16, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | S | Common Stock | 4886 | $976.52 | 1,150,450.0000 | 134,199,999 | 0.42% | 0.00% |
| May 16, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | S | Common Stock | 1227 | $977.38 | 1,149,223.0000 | 134,199,999 | 0.11% | 0.00% |
| May 16, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | S | Common Stock | 379 | $978.18 | 1,148,844.0000 | 134,199,999 | 0.03% | 0.00% |
| May 15, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | S | Common Stock | 111 | $965.69 | 1,248,733.0000 | 134,199,999 | 0.01% | 0.00% |
| May 15, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | S | Common Stock | 782 | $966.29 | 1,247,951.0000 | 134,199,999 | 0.06% | 0.00% |
| May 15, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | S | Common Stock | 3387 | $968.43 | 1,243,136.0000 | 134,199,999 | 0.27% | 0.00% |
| May 15, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | S | Common Stock | 1930 | $969.14 | 1,241,206.0000 | 134,199,999 | 0.16% | 0.00% |
| May 15, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | S | Common Stock | 846 | $970.36 | 1,240,360.0000 | 134,199,999 | 0.07% | 0.00% |
| May 15, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | S | Common Stock | 406 | $971.28 | 1,239,954.0000 | 134,199,999 | 0.03% | 0.00% |
| May 15, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | S | Common Stock | 784 | $972.50 | 1,239,170.0000 | 134,199,999 | 0.06% | 0.00% |
| May 15, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | S | Common Stock | 1865 | $973.43 | 1,237,305.0000 | 134,199,999 | 0.15% | 0.00% |
| May 15, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | S | Common Stock | 4778 | $974.47 | 1,232,527.0000 | 134,199,999 | 0.39% | 0.00% |
| May 15, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | S | Common Stock | 5225 | $975.60 | 1,227,302.0000 | 134,199,999 | 0.42% | 0.00% |
| May 15, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | S | Common Stock | 6885 | $976.56 | 1,220,417.0000 | 134,199,999 | 0.56% | 0.01% |
| May 15, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | S | Common Stock | 9851 | $977.42 | 1,210,566.0000 | 134,199,999 | 0.81% | 0.01% |
| May 15, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | S | Common Stock | 4865 | $978.44 | 1,205,701.0000 | 134,199,999 | 0.40% | 0.00% |
| May 15, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | S | Common Stock | 504 | $979.87 | 1,205,197.0000 | 134,199,999 | 0.04% | 0.00% |
| May 15, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | S | Common Stock | 1223 | $980.72 | 1,203,974.0000 | 134,199,999 | 0.10% | 0.00% |
| May 15, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | S | Common Stock | 2283 | $981.52 | 1,201,691.0000 | 134,199,999 | 0.19% | 0.00% |
| May 15, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | S | Common Stock | 303 | $982.29 | 1,201,388.0000 | 134,199,999 | 0.03% | 0.00% |
| May 15, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | S | Common Stock | 727 | $983.88 | 1,200,661.0000 | 134,199,999 | 0.06% | 0.00% |
| May 15, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | S | Common Stock | 53 | $984.02 | 1,200,608.0000 | 134,199,999 | 0.00% | 0.00% |
| May 15, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | S | Common Stock | 647 | $985.62 | 1,199,961.0000 | 134,199,999 | 0.05% | 0.00% |
| May 15, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | S | Common Stock | 442 | $986.40 | 1,199,519.0000 | 134,199,999 | 0.04% | 0.00% |
| May 15, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | S | Common Stock | 182 | $987.38 | 1,199,337.0000 | 134,199,999 | 0.02% | 0.00% |
| May 15, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | S | Common Stock | 373 | $988.36 | 1,198,964.0000 | 134,199,999 | 0.03% | 0.00% |
| May 15, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | S | Common Stock | 120 | $989.14 | 1,198,844.0000 | 134,199,999 | 0.01% | 0.00% |
| May 15, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | S | Common Stock | 1428 | $967.45 | 1,246,523.0000 | 134,199,999 | 0.11% | 0.00% |
| May 16, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | S | Common Stock | 907 | $967.40 | 1,197,937.0000 | 134,199,999 | 0.08% | 0.00% |
| May 16, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | S | Common Stock | 3213 | $968.44 | 1,194,724.0000 | 134,199,999 | 0.27% | 0.00% |
| May 16, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | S | Common Stock | 9501 | $969.39 | 1,185,223.0000 | 134,199,999 | 0.80% | 0.01% |
| May 16, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | S | Common Stock | 4669 | $970.26 | 1,180,554.0000 | 134,199,999 | 0.39% | 0.00% |
| May 16, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | S | Common Stock | 4922 | $971.56 | 1,175,632.0000 | 134,199,999 | 0.42% | 0.00% |
| May 16, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | S | Common Stock | 790 | $972.22 | 1,174,842.0000 | 134,199,999 | 0.07% | 0.00% |
| May 16, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | S | Common Stock | 2653 | $973.80 | 1,172,189.0000 | 134,199,999 | 0.23% | 0.00% |
| April 29, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | G | Common Stock | 36296 | $0.00 | 1,248,844.0000 | 134,199,999 | 2.82% | 0.03% |
| April 29, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | G | Common Stock | 18148 | $0.00 | 1,248,844.0000 | 134,199,999 | 1.47% | 0.01% |
| Jan. 2, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | S | Common Stock | 16848 | $900.00 | 1,217,856.0000 | 133,100,000 | 1.36% | 0.01% |
| Feb. 15, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | M | Non-Qualified Stock Option (right to buy) | 172723 | $0.00 | 0.0000 | 133,100,000 | 100.00% | 0.13% |
| Feb. 15, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | M | Common Stock | 172723 | $399.66 | 1,390,579.0000 | 133,100,000 | 14.18% | 0.13% |
| Feb. 15, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | F | Common Stock | 123601 | $953.83 | 1,266,978.0000 | 133,100,000 | 8.89% | 0.09% |
| Jan. 2, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | S | Common Stock | 16848 | $900.00 | 1,217,856.0000 | 133,100,000 | 1.36% | 0.01% |
| Dec. 11, 2023 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | M | Common Stock | 25155 | $0.00 | 1,247,545.0000 | 130,400,000 | 2.06% | 0.02% |
| Dec. 11, 2023 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | M | 2019 Performance Stock Units | 25155 | $0.00 | 0.0000 | 130,400,000 | 100.00% | 0.02% |
| Dec. 11, 2023 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | F | Common Stock | 12841 | $844.09 | 1,234,704.0000 | 130,400,000 | 1.03% | 0.01% |
| March 23, 2023 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | President and Chief Scientific | S | Common Stock | 700 | $806.47 | 1,222,770.0000 | 130,400,000 | 0.06% | 0.00% |
| March 23, 2023 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | President and Chief Scientific | S | Common Stock | 400 | $810.30 | 1,222,370.0000 | 130,400,000 | 0.03% | 0.00% |
| March 23, 2023 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | President and Chief Scientific | S | Common Stock | 642 | $803.30 | 1,223,771.0000 | 130,400,000 | 0.05% | 0.00% |
| March 23, 2023 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | President and Chief Scientific | S | Common Stock | 122 | $801.16 | 1,225,650.0000 | 130,400,000 | 0.01% | 0.00% |
| March 23, 2023 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | President and Chief Scientific | S | Common Stock | 254 | $800.59 | 1,225,772.0000 | 130,400,000 | 0.02% | 0.00% |
| March 23, 2023 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | President and Chief Scientific | S | Common Stock | 1237 | $802.54 | 1,224,413.0000 | 130,400,000 | 0.10% | 0.00% |
| March 23, 2023 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | President and Chief Scientific | S | Common Stock | 254 | $804.38 | 1,223,517.0000 | 130,400,000 | 0.02% | 0.00% |
| March 23, 2023 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | President and Chief Scientific | S | Common Stock | 47 | $805.55 | 1,223,470.0000 | 130,400,000 | 0.00% | 0.00% |
| Feb. 6, 2023 | REGENERON PHARMACEUTICALS, INC. | $REGN | YANCOPOULOS GEORGE | President and Chief Scientific | S | Common Stock | 13189 | $800.08 | 1,226,026.0000 | 130,400,000 | 1.06% | 0.01% |