LAROSA JOSEPH J has filed 30 insider transactions across 1 company since March 2023.
Most recent transaction: a grant/award of 12210 shares of REGENERON PHARMACEUTICALS, INC. ($REGN) on December 05, 2025.
Activity breakdown: 0 open-market purchases and 5 sales.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec. 5, 2025 | REGENERON PHARMACEUTICALS, INC. | $REGN | LAROSA JOSEPH J | EVP General Counsel and Secret | A | Non-Qualified Stock Option (right to buy) | 12210 | $0.00 | 12,210.0000 | 136,200,000 | 9999.99% | 0.01% |
| Dec. 8, 2025 | REGENERON PHARMACEUTICALS, INC. | $REGN | LAROSA JOSEPH J | EVP General Counsel and Secret | F | Common Stock | 1396 | $712.94 | 42,315.0000 | 136,200,000 | 3.19% | 0.00% |
| Dec. 5, 2025 | REGENERON PHARMACEUTICALS, INC. | $REGN | LAROSA JOSEPH J | EVP General Counsel and Secret | A | Common Stock | 2476 | $0.00 | 43,711.0000 | 136,200,000 | 6.00% | 0.00% |
| Nov. 20, 2025 | REGENERON PHARMACEUTICALS, INC. | $REGN | LAROSA JOSEPH J | EVP General Counsel and Secret | M | Common Stock | 14450 | $555.67 | 53,920.0000 | 136,200,000 | 36.61% | 0.01% |
| Nov. 20, 2025 | REGENERON PHARMACEUTICALS, INC. | $REGN | LAROSA JOSEPH J | EVP General Counsel and Secret | M | Non-Qualified Stock Option (right to buy) | 14450 | $0.00 | 0.0000 | 136,200,000 | 100.00% | 0.01% |
| Nov. 20, 2025 | REGENERON PHARMACEUTICALS, INC. | $REGN | LAROSA JOSEPH J | EVP General Counsel and Secret | F | Common Stock | 12686 | $736.77 | 41,234.0000 | 136,200,000 | 23.53% | 0.01% |
| Dec. 16, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | LAROSA JOSEPH J | EVP General Counsel and Secret | F | Common Stock | 702 | $730.81 | 39,446.0000 | 135,300,000 | 1.75% | 0.00% |
| Dec. 6, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | LAROSA JOSEPH J | EVP General Counsel and Secret | A | Non-Qualified Stock Option (right to buy) | 8981 | $0.00 | 8,981.0000 | 135,300,000 | 9999.99% | 0.01% |
| Dec. 6, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | LAROSA JOSEPH J | EVP General Counsel and Secret | A | Common Stock | 2332 | $0.00 | 40,640.0000 | 135,300,000 | 6.09% | 0.00% |
| Dec. 9, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | LAROSA JOSEPH J | EVP General Counsel and Secret | F | Common Stock | 492 | $787.00 | 40,148.0000 | 135,300,000 | 1.21% | 0.00% |
| July 11, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | LAROSA JOSEPH J | EVP General Counsel and Secret | S | Common Stock | 1866 | $1088.95 | 38,308.0000 | 134,800,000 | 4.64% | 0.00% |
| June 24, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | LAROSA JOSEPH J | EVP General Counsel and Secret | M | Common Stock | 14450 | $555.67 | 51,258.0000 | 134,199,999 | 39.26% | 0.01% |
| June 24, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | LAROSA JOSEPH J | EVP General Counsel and Secret | M | Non-Qualified Stock Option (right to buy) | 14450 | $0.00 | 14,450.0000 | 134,199,999 | 50.00% | 0.01% |
| June 24, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | LAROSA JOSEPH J | EVP General Counsel and Secret | F | Common Stock | 11084 | $1060.13 | 40,174.0000 | 134,199,999 | 21.62% | 0.01% |
| June 10, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | LAROSA JOSEPH J | EVP General Counsel and Secret | G | Common Stock | 1608 | $0.00 | 36,808.0000 | 134,199,999 | 4.19% | 0.00% |
| May 21, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | LAROSA JOSEPH J | EVP General Counsel and Secret | S | Common Stock | 1865 | $994.90 | 38,416.0000 | 134,199,999 | 4.63% | 0.00% |
| Feb. 26, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | LAROSA JOSEPH J | EVP General Counsel and Secret | S | Common Stock | 1000 | $990.00 | 40,265.0000 | 133,100,000 | 2.42% | 0.00% |
| Feb. 22, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | LAROSA JOSEPH J | EVP General Counsel and Secret | S | Common Stock | 1000 | $967.65 | 41,265.0000 | 133,100,000 | 2.37% | 0.00% |
| Feb. 7, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | LAROSA JOSEPH J | EVP General Counsel and Secret | S | Common Stock | 1000 | $950.00 | 42,265.0000 | 133,100,000 | 2.31% | 0.00% |
| Jan. 3, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | LAROSA JOSEPH J | EVP General Counsel and Secret | M | Non-Qualified Stock Option (right to buy) | 34000 | $0.00 | 0.0000 | 133,100,000 | 100.00% | 0.03% |
| Jan. 3, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | LAROSA JOSEPH J | EVP General Counsel and Secret | F | Common Stock | 24493 | $912.30 | 43,265.0000 | 133,100,000 | 36.15% | 0.02% |
| Jan. 3, 2024 | REGENERON PHARMACEUTICALS, INC. | $REGN | LAROSA JOSEPH J | EVP General Counsel and Secret | M | Common Stock | 34000 | $399.66 | 67,758.0000 | 133,100,000 | 100.72% | 0.03% |
| Dec. 8, 2023 | REGENERON PHARMACEUTICALS, INC. | $REGN | LAROSA JOSEPH J | EVP General Counsel and Secret | A | Non-Qualified Stock Option (right to buy) | 7649 | $0.00 | 7,649.0000 | 130,400,000 | 9999.99% | 0.01% |
| Dec. 8, 2023 | REGENERON PHARMACEUTICALS, INC. | $REGN | LAROSA JOSEPH J | EVP General Counsel and Secret | F | Common Stock | 852 | $843.79 | 32,294.0000 | 130,400,000 | 2.57% | 0.00% |
| Dec. 8, 2023 | REGENERON PHARMACEUTICALS, INC. | $REGN | LAROSA JOSEPH J | EVP General Counsel and Secret | A | Common Stock | 2133 | $0.00 | 34,427.0000 | 130,400,000 | 6.60% | 0.00% |
| Dec. 11, 2023 | REGENERON PHARMACEUTICALS, INC. | $REGN | LAROSA JOSEPH J | EVP General Counsel and Secret | F | Common Stock | 669 | $844.09 | 33,758.0000 | 130,400,000 | 1.94% | 0.00% |
| March 23, 2023 | REGENERON PHARMACEUTICALS, INC. | $REGN | LAROSA JOSEPH J | EVP General Counsel and Secret | M | Common Stock | 10000 | $270.43 | 39,868.0000 | 130,400,000 | 33.48% | 0.01% |
| March 23, 2023 | REGENERON PHARMACEUTICALS, INC. | $REGN | LAROSA JOSEPH J | EVP General Counsel and Secret | F | Common Stock | 6742 | $801.59 | 33,126.0000 | 130,400,000 | 16.91% | 0.01% |
| March 23, 2023 | REGENERON PHARMACEUTICALS, INC. | $REGN | LAROSA JOSEPH J | EVP General Counsel and Secret | M | Non-Qualified Stock Option (right to buy) | 10000 | $0.00 | 0.0000 | 130,400,000 | 100.00% | 0.01% |
| March 10, 2023 | REGENERON PHARMACEUTICALS, INC. | $REGN | LAROSA JOSEPH J | EVP General Counsel and Secret | G | Common Stock | 1006 | $0.00 | 29,868.0000 | 130,400,000 | 3.26% | 0.00% |