REGENERON PHARMACEUTICALS, INC. (REGN)

Latest Insider Confidence Score

2026Q1

45.3
Bearish

Company insider confidence (by quarter)

2016Q2 2026Q1

Largest shareholders

Insider Role (last 12 mo) Shares held Filed at
Regeneron Pharmaceuticals, Inc. — 1,108,015 Feb 18, 2021
Yancopoulos George Chair 557,465 Mar 11, 2020
Vagelos P Roy Director 308,532 May 22, 2020
Stahl Neil EVP Research and Development 27,267 Feb 28, 2020
Landry Robert E CFO 25,161 Apr 3, 2020

Recent buy/sell transactions

Exec date Filing date Insider Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Mar 2, 2026 Mar 3, 2026 RYAN ARTHUR F Director Sell 48.8 -100 -0.56% ✓ $78.5K
Feb 19, 2026 Feb 23, 2026 Zoghbi Huda Y Director Sell 8.8 -1,638 -49.03% ✓ $1.3M
Feb 9, 2026 Feb 11, 2026 Pitofsky Jason SVP Controller Sell 8.8 -2,036 -31.24% ✓ $1.6M
Feb 9, 2026 Feb 11, 2026 RYAN ARTHUR F Director Sell 48.8 -100 -0.56% ✓ $77.9K
Jan 7, 2026 Jan 8, 2026 Bassler Bonnie L Director Sell 8.8 -1,500 -46.83% ✓ $1.2M
Jan 2, 2026 Jan 6, 2026 Zoghbi Huda Y Director Neutral 90.0 +155 10.01% ✗ -
Jan 2, 2026 Jan 6, 2026 Thompson Craig B. Director Neutral 90.0 +155 25.00% ✗ -
Jan 2, 2026 Jan 6, 2026 SING GEORGE L Director Neutral 60.0 +155 0.47% ✗ -
Jan 2, 2026 Jan 6, 2026 Guarini Kathryn Director Neutral 90.0 +155 34.60% ✗ -
Jan 2, 2026 Jan 6, 2026 Schenkein David P Director Neutral 90.0 +155 34.60% ✗ -
Jan 2, 2026 Jan 6, 2026 GOLDSTEIN JOSEPH L Director Neutral 77.5 +155 2.37% ✗ -
Jan 2, 2026 Jan 6, 2026 RYAN ARTHUR F Director Neutral 67.5 +155 0.87% ✗ -
Jan 2, 2026 Jan 6, 2026 COLES N ANTHONY Director Neutral 85.0 +155 9.94% ✗ -
Jan 2, 2026 Jan 6, 2026 BROWN MICHAEL S Director Neutral 77.5 +155 1.22% ✗ -
Jan 2, 2026 Jan 6, 2026 Bassler Bonnie L Director Neutral 90.0 +155 10.01% ✗ -
Jan 2, 2026 Jan 6, 2026 POON CHRISTINE A Director Neutral 82.5 +155 3.06% ✗ -
Dec 31, 2025 Jan 5, 2026 YANCOPOULOS GEORGE Chair Sell 15.0 -28,570 -2.47% ✗ $22.1M
Dec 31, 2025 Jan 5, 2026 SCHLEIFER LEONARD S CEO Sell 15.0 -28,570 -3.99% ✗ $22.1M
Dec 30, 2025 Dec 31, 2025 SING GEORGE L Director Sell 17.5 -6,188 -15.79% ✗ $4.8M
Dec 9, 2025 Dec 11, 2025 Van Plew Daniel P EVP & General Mgr, Industrial Sell 17.5 -2,552 -6.76% ✗ $1.8M
Dec 9, 2025 Dec 11, 2025 MURPHY ANDREW J EVP Research Sell 17.5 -4,229 -7.49% ✗ $3M
Dec 9, 2025 Dec 11, 2025 McCourt Marion EVP Commercial Sell 20.0 -1,021 -6.56% ✗ $716.2K
Dec 9, 2025 Dec 11, 2025 YANCOPOULOS GEORGE Chair Sell 15.0 -131,874 -10.48% ✗ $92.5M
Dec 9, 2025 Dec 11, 2025 SCHLEIFER LEONARD S CEO Sell 15.0 -155,145 -18.40% ✗ $108.8M
Dec 5, 2025 Dec 9, 2025 Pitofsky Jason VP Controller Sell 97.5 +1,075 24.20% ✗ $705.1K
Dec 5, 2025 Dec 9, 2025 Van Plew Daniel P EVP & General Mgr, Industrial Sell 95.0 +1,809 5.04% ✗ $1.4M
Dec 5, 2025 Dec 9, 2025 MURPHY ANDREW J EVP Research Sell 92.5 +2,016 3.70% ✗ $1.2M
Dec 5, 2025 Dec 9, 2025 McCourt Marion EVP Commercial Sell 92.5 +1,140 7.90% ✗ $952.5K
Dec 5, 2025 Dec 9, 2025 LAROSA JOSEPH J EVP General Counsel and Secret Sell 90.0 +1,080 2.62% ✗ $995.3K
Dec 5, 2025 Dec 9, 2025 Fenimore Christopher R. CFO Sell 97.5 +2,035 10.30% ✗ $707.2K
Nov 20, 2025 Nov 24, 2025 LAROSA JOSEPH J EVP General Counsel and Secret Sell 16.3 -12,686 -23.53% ✗ $9.3M
Nov 20, 2025 Nov 24, 2025 Bassler Bonnie L Director Sell 7.5 -760 -32.93% ✓ $570K
Nov 7, 2025 Nov 10, 2025 Pitofsky Jason VP Controller Sell 20.0 -431 -8.84% ✗ $280.8K
Oct 29, 2025 Oct 31, 2025 POON CHRISTINE A Director Sell 17.5 -6,500 -73.43% ✗ $4.3M
Oct 29, 2025 Oct 31, 2025 MURPHY ANDREW J EVP Research Sell 15.0 -34,028 -38.47% ✗ $21.1M
Jan 2, 2025 Jan 6, 2025 Schenkein David P Director Neutral 90.0 +166 58.87% ✗ -
Jan 2, 2025 Jan 6, 2025 Thompson Craig B. Director Neutral 90.0 +166 36.56% ✗ -
Jan 2, 2025 Jan 6, 2025 COLES N ANTHONY Director Neutral 90.0 +166 11.92% ✗ -
Jan 2, 2025 Jan 6, 2025 Zoghbi Huda Y Director Neutral 90.0 +166 12.01% ✗ -
Jan 2, 2025 Jan 6, 2025 RYAN ARTHUR F Director Neutral 67.5 +166 0.94% ✗ -
Dec 20, 2024 Jan 6, 2025 POON CHRISTINE A Director Neutral 85.0 +180 8.29% ✗ -
Jan 2, 2025 Jan 6, 2025 Guarini Kathryn Director Neutral 90.0 +166 58.87% ✗ -
Jan 2, 2025 Jan 6, 2025 GOLDSTEIN JOSEPH L Director Neutral 82.5 +166 2.60% ✗ -
Jan 2, 2025 Jan 6, 2025 BROWN MICHAEL S Director Neutral 77.5 +166 1.32% ✗ -
Jan 2, 2025 Jan 6, 2025 Bassler Bonnie L Director Neutral 90.0 +166 12.01% ✗ -
Dec 31, 2024 Jan 3, 2025 SING GEORGE L Director Sell 17.5 -1,782 -5.61% ✗ $1.4M
Dec 16, 2024 Dec 18, 2024 Van Plew Daniel P EVP & General Mgr, Industrial Sell 20.0 -969 -2.63% ✗ $708.2K
Dec 16, 2024 Dec 18, 2024 STAHL NEIL EVP Research and Development Sell 32.5 -304 -0.51% ✗ $222.2K
Dec 16, 2024 Dec 18, 2024 Pitofsky Jason VP Controller Sell 22.5 -298 -5.78% ✗ $217.8K
Dec 16, 2024 Dec 18, 2024 MURPHY ANDREW J EVP Research Sell 20.0 -1,054 -1.94% ✗ $770.3K
Dec 16, 2024 Dec 18, 2024 McCourt Marion EVP Commercial Sell 20.0 -759 -5.01% ✗ $554.7K
Dec 16, 2024 Dec 18, 2024 LAROSA JOSEPH J EVP General Counsel and Secret Sell 20.0 -702 -1.75% ✗ $513K
Dec 16, 2024 Dec 18, 2024 Fenimore Christopher R. CFO Sell 20.0 -491 -2.43% ✗ $358.8K
Dec 6, 2024 Dec 10, 2024 Pitofsky Jason VP Controller Sell 95.0 +937 22.23% ✗ $117.3K
Dec 6, 2024 Dec 10, 2024 Fenimore Christopher R. CFO Sell 92.5 +1,451 7.73% ✗ $897.2K
Dec 9, 2024 Dec 10, 2024 STAHL NEIL EVP Research and Development Sell 30.0 -466 -0.78% ✗ $366.7K
Dec 6, 2024 Dec 10, 2024 Van Plew Daniel P EVP & General Mgr, Industrial Sell 92.5 +3,007 8.88% ✗ $387.2K
Dec 6, 2024 Dec 10, 2024 MURPHY ANDREW J EVP Research Sell 92.5 +3,007 5.84% ✗ $387.2K
Dec 6, 2024 Dec 10, 2024 McCourt Marion EVP Commercial Sell 95.0 +2,058 15.70% ✗ $215.6K
Dec 6, 2024 Dec 10, 2024 LAROSA JOSEPH J EVP General Counsel and Secret Sell 90.0 +1,840 4.80% ✗ $387.2K
Nov 8, 2024 Nov 12, 2024 MURPHY ANDREW J EVP Research Neutral 27.5 -1,185 -2.25% ✗ -
Nov 1, 2024 Nov 5, 2024 McCourt Marion EVP Commercial Sell 30.0 -1,000 -7.09% ✓ $844.6K
Oct 1, 2024 Oct 3, 2024 RYAN ARTHUR F Director Sell 47.5 -100 -0.57% ✓ $104.9K
Oct 1, 2024 Oct 3, 2024 McCourt Marion EVP Commercial Sell 27.5 -1,000 -7.09% ✓ $1.1M
Sep 4, 2024 Sep 5, 2024 SING GEORGE L Director Neutral 27.5 -1,200 -4.05% ✗ -
Sep 3, 2024 Sep 5, 2024 McCourt Marion EVP Commercial Sell 27.5 -1,000 -7.09% ✓ $1.2M
Sep 3, 2024 Sep 5, 2024 RYAN ARTHUR F Director Sell 47.5 -100 -0.56% ✓ $117.9K
Aug 28, 2024 Aug 29, 2024 Fenimore Christopher R. CFO Sell 16.3 -5,680 -23.23% ✗ $6.8M
Aug 15, 2024 Aug 19, 2024 Bassler Bonnie L Director Sell 7.5 -756 -35.36% ✓ $884.5K
Aug 15, 2024 Aug 19, 2024 POON CHRISTINE A Director Sell 15.0 -10,838 -83.31% ✗ $12.6M
Aug 13, 2024 Aug 15, 2024 MURPHY ANDREW J EVP Research Sell 2.5 -20,000 -27.54% ✓ $22.9M
Aug 13, 2024 Aug 14, 2024 STAHL NEIL EVP Research and Development Neutral 37.5 -500 -0.83% ✗ -
Aug 8, 2024 Aug 12, 2024 STAHL NEIL EVP Research and Development Sell 16.3 -6,097 -9.15% ✗ $5.6M
Aug 7, 2024 Aug 7, 2024 Pitofsky Jason VP Controller Sell 20.0 -487 -10.36% ✗ $521.1K
Aug 2, 2024 Aug 6, 2024 STAHL NEIL EVP Research and Development Sell 15.0 -18,441 -21.67% ✗ $20.2M
Aug 2, 2024 Aug 5, 2024 Bassler Bonnie L Director Sell 7.5 -756 -35.36% ✓ $842.9K
Aug 1, 2024 Aug 5, 2024 McCourt Marion EVP Commercial Sell 23.8 -1,137 -7.98% ✓ $1.2M
Aug 1, 2024 Aug 5, 2024 RYAN ARTHUR F Director Sell 58.8 -1 -0.01% ✓ $1.1K
Aug 1, 2024 Aug 5, 2024 RYAN ARTHUR F Director Sell 47.5 -99 -0.55% ✓ $107.5K
Jul 11, 2024 Jul 12, 2024 LAROSA JOSEPH J EVP General Counsel and Secret Sell 32.5 -1,866 -4.64% ✓ $2M
Jul 1, 2024 Jul 2, 2024 McCourt Marion EVP Commercial Sell 23.8 -1,137 -7.98% ✓ $1.2M
Jul 1, 2024 Jul 2, 2024 RYAN ARTHUR F Director Sell 47.5 -100 -0.56% ✓ $105.9K
Jun 24, 2024 Jun 25, 2024 Bassler Bonnie L Director Sell 7.5 -756 -35.36% ✓ $802.9K
Jun 24, 2024 Jun 25, 2024 LAROSA JOSEPH J EVP General Counsel and Secret Sell 15.0 -11,084 -21.62% ✗ $11.8M
Jun 14, 2024 Jun 17, 2024 BROWN MICHAEL S Director Sell 20.0 -1,535 -10.90% ✓ $1.6M
Jun 11, 2024 Jun 13, 2024 SCHLEIFER LEONARD S CEO Sell 30.0 -25,213 -3.62% ✓ $25.6M
Jun 10, 2024 Jun 12, 2024 YANCOPOULOS GEORGE Chair Neutral 27.5 -37,899 -3.30% ✗ -
Jun 10, 2024 Jun 12, 2024 LAROSA JOSEPH J EVP General Counsel and Secret Neutral 27.5 -1,608 -4.19% ✗ -
Jun 6, 2024 Jun 10, 2024 SCHLEIFER LEONARD S CEO Sell 47.5 -787 -0.11% ✓ $798.8K
Jun 5, 2024 Jun 7, 2024 Bassler Bonnie L Director Sell 7.5 -827 -37.44% ✓ $836.1K
Jun 3, 2024 Jun 5, 2024 McCourt Marion EVP Commercial Sell 23.8 -1,138 -7.99% ✓ $1.1M
Jun 3, 2024 Jun 5, 2024 RYAN ARTHUR F Director Sell 47.5 -100 -0.55% ✓ $99.4K
May 28, 2024 May 29, 2024 BROWN MICHAEL S Director Sell 23.8 -1,172 -8.54% ✓ $1.1M
May 21, 2024 May 22, 2024 LAROSA JOSEPH J EVP General Counsel and Secret Sell 32.5 -1,865 -4.63% ✓ $1.9M
May 17, 2024 May 17, 2024 SCHLEIFER LEONARD S CEO Sell 30.0 -22,830 -3.18% ✓ $22.4M
May 16, 2024 May 17, 2024 YANCOPOULOS GEORGE Chair Sell 30.0 -50,000 -4.17% ✓ $48.6M
May 15, 2024 May 17, 2024 YANCOPOULOS GEORGE Chair Sell 30.0 -50,000 -4.00% ✓ $48.8M
May 13, 2024 May 15, 2024 SCHLEIFER LEONARD S CEO Sell 7.5 -180,374 -20.07% ✓ $176.3M
May 3, 2024 May 6, 2024 SING GEORGE L Director Sell 20.0 -877 -2.88% ✗ $826.6K
May 1, 2024 May 3, 2024 McCourt Marion EVP Commercial Sell 45.0 -250 -1.87% ✓ $222.4K