Larosa Joseph J (CIK 0001238303)

Latest company ownership

REGN - REGENERON PHARMACEUTICALS, INC.
Role: EVP General Counsel and Secret
Shares held
18,395
Last filed at
Nov 24, 2025
Confidence Score
54.7
2025Q4
Confidence Score History
2016Q3 2025Q4

Recent buy/sell transactions

Exec date Filing date Company Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Dec 5, 2025 Dec 9, 2025 REGENERON PHARMACEUTICALS, INC. EVP General Counsel and Secret Sell 90.0 +1,080 2.62% ✗ $995.3K
Nov 20, 2025 Nov 24, 2025 REGENERON PHARMACEUTICALS, INC. EVP General Counsel and Secret Sell 16.3 -12,686 -23.53% ✗ $9.3M
Dec 16, 2024 Dec 18, 2024 REGENERON PHARMACEUTICALS, INC. EVP General Counsel and Secret Sell 20.0 -702 -1.75% ✗ $513K
Dec 6, 2024 Dec 10, 2024 REGENERON PHARMACEUTICALS, INC. EVP General Counsel and Secret Sell 90.0 +1,840 4.80% ✗ $387.2K
Jul 11, 2024 Jul 12, 2024 REGENERON PHARMACEUTICALS, INC. EVP General Counsel and Secret Sell 32.5 -1,866 -4.64% ✓ $2M
Jun 24, 2024 Jun 25, 2024 REGENERON PHARMACEUTICALS, INC. EVP General Counsel and Secret Sell 15.0 -11,084 -21.62% ✗ $11.8M
May 21, 2024 May 22, 2024 REGENERON PHARMACEUTICALS, INC. EVP General Counsel and Secret Sell 32.5 -1,865 -4.63% ✓ $1.9M
Feb 26, 2024 Feb 28, 2024 REGENERON PHARMACEUTICALS, INC. EVP General Counsel and Secret Sell 20.0 -1,000 -2.42% ✗ $990K
Feb 22, 2024 Feb 26, 2024 REGENERON PHARMACEUTICALS, INC. EVP General Counsel and Secret Sell 20.0 -1,000 -2.37% ✗ $967.7K
Feb 7, 2024 Feb 9, 2024 REGENERON PHARMACEUTICALS, INC. EVP General Counsel and Secret Sell 20.0 -1,000 -2.31% ✗ $950K
Jan 3, 2024 Jan 4, 2024 REGENERON PHARMACEUTICALS, INC. EVP General Counsel and Secret Sell 15.0 -24,493 -36.15% ✗ $22.3M
Dec 8, 2023 Dec 12, 2023 REGENERON PHARMACEUTICALS, INC. EVP General Counsel and Secret Sell 87.5 +612 1.85% ✗ $1.3M
Mar 23, 2023 Mar 27, 2023 REGENERON PHARMACEUTICALS, INC. EVP General Counsel and Secret Sell 16.3 -6,742 -16.91% ✗ $5.4M
Dec 9, 2022 Dec 13, 2022 REGENERON PHARMACEUTICALS, INC. EVP General Counsel and Secret Sell 20.0 -492 -1.72% ✗ $370.6K
Sep 9, 2022 Sep 12, 2022 REGENERON PHARMACEUTICALS, INC. EVP General Counsel and Secret Sell 15.0 -20,730 -42.01% ✗ $15.2M
Apr 7, 2022 Apr 11, 2022 REGENERON PHARMACEUTICALS, INC. EVP General Counsel and Secret Sell 10.0 -5,114 -20.93% ✓ $3.7M
Apr 1, 2022 Apr 4, 2022 REGENERON PHARMACEUTICALS, INC. EVP General Counsel and Secret Sell 15.0 -5,114 -17.31% ✓ $3.5M
Dec 11, 2021 Dec 14, 2021 REGENERON PHARMACEUTICALS, INC. EVP General Counsel and Secret Sell 20.0 -697 -2.30% ✗ $463K
Dec 8, 2021 Dec 10, 2021 REGENERON PHARMACEUTICALS, INC. EVP General Counsel and Secret Sell 15.0 -16,434 -26.00% ✗ $13M
Aug 20, 2021 Aug 24, 2021 REGENERON PHARMACEUTICALS, INC. EVP General Counsel and Secret Sell 3.8 -10,000 -37.48% ✓ $6.6M
Jul 2, 2021 Jul 7, 2021 REGENERON PHARMACEUTICALS, INC. EVP General Counsel and Secret Sell 3.8 -10,000 -37.48% ✓ $5.8M
Aug 27, 2020 Aug 31, 2020 REGENERON PHARMACEUTICALS, INC. EVP General Counsel and Secret Sell 16.3 -10,000 -16.37% ✗ $6.1M
May 14, 2020 May 15, 2020 REGENERON PHARMACEUTICALS, INC. EVP General Counsel and Secret Sell 2.5 -18,311 -55.43% ✓ $10.5M
Apr 20, 2020 Apr 20, 2020 REGENERON PHARMACEUTICALS, INC. EVP General Counsel and Secret Sell 20.0 -1,778 -10.77% ✓ $1M
Apr 16, 2020 Apr 20, 2020 REGENERON PHARMACEUTICALS, INC. EVP General Counsel and Secret Sell 31.3 -14,844 -3.22% ✓ $8.2M
Apr 14, 2020 Apr 16, 2020 REGENERON PHARMACEUTICALS, INC. EVP General Counsel and Secret Sell 5.0 -5,000 -25.35% ✓ $2.6M
Apr 1, 2020 Apr 3, 2020 REGENERON PHARMACEUTICALS, INC. EVP General Counsel and Secret Sell 31.3 -15,000 -4.81% ✓ $7.3M
Sep 1, 2016 Sep 2, 2016 REGENERON PHARMACEUTICALS, INC. SVP General Counsel and Secret Sell 17.5 -4,943 -29.25% ✗ $1.9M