SEC Insider Transactions from YANCOPOULOS GEORGE.

Last updated: 2026-03-14 11:43 UTC | Total transactions: 64

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.

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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%