REGN
Regeneron Pharmaceuticals, Inc.$614.20+2.78 (+0.45%)Prev Close$611.48·MCap$65.47B·P/E14.97·Vol470.2K·Yield0.01%
▲
Buys (12M)
0
$0.00
▼
Sells (12M)
24
$279.37M
◆
Net Activity
Net Seller
$279.37M
●
Active Insiders
13
last 12 mo
Over the past 12 months, insider activity at Regeneron Pharmaceuticals, Inc. (REGN) has been exclusively selling, with 0 insider purchases totaling $0.00 and 24 insider sales totaling $279.37M. The most recent insider transaction was by RYAN ARTHUR F (director), who sold $55.1K worth of shares on May 4, 2026. Regeneron Pharmaceuticals, Inc. operates in the Healthcare sector, within the Biotechnology industry, with a market cap of $65.47B.
REGN Insider Trading Activity
| Date | Insider | Role | Type | Shares | Avg Price | Value | Shares After |
|---|---|---|---|---|---|---|---|
| May 4, 2026 | RYAN ARTHUR F | director | Sell | 78 | $705.85 | $55.1K | 17,559 |
| Mar 3, 2026 | RYAN ARTHUR F | director | Sell | 67 | $784.41 | $52.6K | 17,796 |
| Feb 19, 2026 | Zoghbi Huda Y | Director | Sell | 1,638 | $781.32 | $1.28M | 0 |
| Feb 11, 2026 | Pitofsky Jason | officer: SVP Controller | Sell | 2,036 | $778.52 | $1.59M | 6,288 |
| Feb 11, 2026 | RYAN ARTHUR F | director | Sell | 90 | $778.16 | $70.0K | 17,892 |
| Jan 8, 2026 | Bassler Bonnie L | Director | Sell | 1,500 | $800.00 | $1.20M | 0 |
| Jan 5, 2026 | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | Sell | 28,570 | $772.09 | $22.06M | 0 |
| Dec 31, 2025 | SING GEORGE L | Director | Sell | 6,188 | $774.03 | $4.79M | 0 |
| Dec 11, 2025 | McCourt Marion | EVP Commercial | Sell | 1,021 | $701.51 | $716.2K | 0 |
| Dec 11, 2025 | MURPHY ANDREW J | EVP Research | Sell | 4,229 | $701.51 | $2.97M | 0 |
| Dec 11, 2025 | SCHLEIFER LEONARD S | Bd. Co-Chair, President & CEO | Sell | 155,145 | $701.51 | $108.84M | 0 |
| Dec 11, 2025 | Van Plew Daniel P | EVP & General Mgr, Industrial | Sell | 2,552 | $701.51 | $1.79M | 0 |
| Dec 11, 2025 | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | Sell | 131,874 | $701.51 | $92.51M | 0 |
| Dec 9, 2025 | Fenimore Christopher R. | EVP Finance CFO | Sell | 992 | $712.94 | $707.2K | 0 |
| Dec 9, 2025 | LAROSA JOSEPH J | EVP General Counsel and Secret | Sell | 1,396 | $712.94 | $995.3K | 0 |
| Dec 9, 2025 | McCourt Marion | EVP Commercial | Sell | 1,336 | $712.94 | $952.5K | 0 |
| Dec 9, 2025 | MURPHY ANDREW J | EVP Research | Sell | 1,699 | $712.94 | $1.21M | 0 |
| Dec 9, 2025 | Pitofsky Jason | VP Controller | Sell | 989 | $712.94 | $705.1K | 0 |
| Dec 9, 2025 | Van Plew Daniel P | EVP & General Mgr, Industrial | Sell | 1,906 | $712.94 | $1.36M | 0 |
| Nov 24, 2025 | Bassler Bonnie L | Director | Sell | 760 | $750.00 | $570.0K | 0 |
| Nov 24, 2025 | LAROSA JOSEPH J | EVP General Counsel and Secret | Sell | 12,686 | $736.77 | $9.35M | 0 |
| Nov 10, 2025 | Pitofsky Jason | VP Controller | Sell | 431 | $651.43 | $280.8K | 0 |
| Oct 31, 2025 | MURPHY ANDREW J | EVP Research | Sell | 32,490 | $648.82 | $21.08M | 0 |
| Oct 31, 2025 | POON CHRISTINE A | Director | Sell | 6,500 | $654.27 | $4.25M | 0 |
| Nov 5, 2024 | McCourt Marion | EVP Commercial | Sell | 1,000 | $844.61 | $844.6K | 12,931 |
| Oct 3, 2024 | McCourt Marion | EVP Commercial | Sell | 1,000 | $1054.06 | $1.05M | 12,931 |
| Oct 3, 2024 | RYAN ARTHUR F | Director | Sell | 100 | $1048.78 | $104.9K | 17,679 |
| Sep 5, 2024 | McCourt Marion | EVP Commercial | Sell | 1,000 | $1178.73 | $1.18M | 12,931 |
| Sep 5, 2024 | RYAN ARTHUR F | Director | Sell | 100 | $1178.68 | $117.9K | 17,778 |
| Aug 29, 2024 | Fenimore Christopher R. | SVP Finance & CFO | Sell | 5,680 | $1205.33 | $6.85M | 1,378-80% |
| Aug 19, 2024 | Bassler Bonnie L | Director | Sell | 756 | $1170.00 | $884.5K | 1,382-35% |
| Aug 19, 2024 | POON CHRISTINE A | Director | Sell | 10,838 | $1158.17 | $12.55M | 11,998-47% |
| Aug 15, 2024 | MURPHY ANDREW J | EVP Research | Sell | 6,363 | $1153.15 | $7.34M | 54,614 |
| Aug 12, 2024 | STAHL NEIL | EVP Research and Development | Sell | 5,197 | $1084.54 | $5.64M | 56,096 |
| Aug 7, 2024 | Pitofsky Jason | VP Controller | Sell | 487 | $1070.00 | $521.1K | 4,204 |
| Aug 5, 2024 | Bassler Bonnie L | Director | Sell | 756 | $1115.00 | $842.9K | 1,382-35% |
| Aug 5, 2024 | McCourt Marion | EVP Commercial | Sell | 1,137 | $1060.86 | $1.21M | 12,931 |
| Aug 5, 2024 | RYAN ARTHUR F | Director | Sell | 100 | $1085.67 | $108.6K | 17,881 |
| Jul 12, 2024 | LAROSA JOSEPH J | EVP General Counsel and Secret | Sell | 1,866 | $1088.95 | $2.03M | 37,937 |
| Jul 2, 2024 | McCourt Marion | EVP Commercial | Sell | 1,137 | $1047.11 | $1.19M | 12,931 |
| Jul 2, 2024 | RYAN ARTHUR F | Director | Sell | 100 | $1059.24 | $105.9K | 17,979 |
| Jun 25, 2024 | Bassler Bonnie L | Director | Sell | 756 | $1062.00 | $802.9K | 1,382-35% |
| Jun 17, 2024 | BROWN MICHAEL S | Director | Sell | 1,535 | $1040.00 | $1.60M | 1,382-53% |
| Jun 13, 2024 | SCHLEIFER LEONARD S | Bd. Co-Chair, President & CEO | Sell | 25,213 | $1015.75 | $25.61M | 56,877-31% |
| Jun 10, 2024 | SCHLEIFER LEONARD S | Bd. Co-Chair, President & CEO | Sell | 787 | $1015.02 | $798.8K | 64,198 |
| Jun 7, 2024 | Bassler Bonnie L | Director | Sell | 827 | $1011.00 | $836.1K | 1,382-37% |
| Jun 5, 2024 | McCourt Marion | EVP Commercial | Sell | 1,138 | $980.16 | $1.12M | 12,931 |
| Jun 5, 2024 | RYAN ARTHUR F | Director | Sell | 100 | $994.50 | $99.4K | 18,080 |
| May 29, 2024 | BROWN MICHAEL S | Director | Sell | 1,172 | $974.86 | $1.14M | 1,382-46% |
| May 22, 2024 | LAROSA JOSEPH J | EVP General Counsel and Secret | Sell | 1,865 | $994.90 | $1.86M | 34,678 |
Showing 1–50 of 247
1 / 5
REGN Insider Buying Activity
The following table shows recent insider purchases of Regeneron Pharmaceuticals, Inc. (REGN) stock reported via SEC Form 4 filings.
No insider buying activity found for REGN in the last 12 months.
REGN Insider Selling Activity
The following table shows recent insider sales of Regeneron Pharmaceuticals, Inc. (REGN) stock reported via SEC Form 4 filings.
| Date | Insider | Role | Type | Shares | Avg Price | Value | Shares After |
|---|---|---|---|---|---|---|---|
| May 4, 2026 | RYAN ARTHUR F | director | Sell | 78 | $705.85 | $55.1K | 17,559 |
| Mar 3, 2026 | RYAN ARTHUR F | director | Sell | 67 | $784.41 | $52.6K | 17,796 |
| Feb 19, 2026 | Zoghbi Huda Y | Director | Sell | 1,638 | $781.32 | $1.28M | 0 |
| Feb 11, 2026 | Pitofsky Jason | officer: SVP Controller | Sell | 2,036 | $778.52 | $1.59M | 6,288 |
| Feb 11, 2026 | RYAN ARTHUR F | director | Sell | 90 | $778.16 | $70.0K | 17,892 |
| Jan 8, 2026 | Bassler Bonnie L | Director | Sell | 1,500 | $800.00 | $1.20M | 0 |
| Jan 5, 2026 | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | Sell | 28,570 | $772.09 | $22.06M | 0 |
| Dec 31, 2025 | SING GEORGE L | Director | Sell | 6,188 | $774.03 | $4.79M | 0 |
| Dec 11, 2025 | McCourt Marion | EVP Commercial | Sell | 1,021 | $701.51 | $716.2K | 0 |
| Dec 11, 2025 | MURPHY ANDREW J | EVP Research | Sell | 4,229 | $701.51 | $2.97M | 0 |
| Dec 11, 2025 | SCHLEIFER LEONARD S | Bd. Co-Chair, President & CEO | Sell | 155,145 | $701.51 | $108.84M | 0 |
| Dec 11, 2025 | Van Plew Daniel P | EVP & General Mgr, Industrial | Sell | 2,552 | $701.51 | $1.79M | 0 |
| Dec 11, 2025 | YANCOPOULOS GEORGE | Bd. Co-Chair, President & CSO | Sell | 131,874 | $701.51 | $92.51M | 0 |
| Dec 9, 2025 | Fenimore Christopher R. | EVP Finance CFO | Sell | 992 | $712.94 | $707.2K | 0 |
| Dec 9, 2025 | LAROSA JOSEPH J | EVP General Counsel and Secret | Sell | 1,396 | $712.94 | $995.3K | 0 |
| Dec 9, 2025 | McCourt Marion | EVP Commercial | Sell | 1,336 | $712.94 | $952.5K | 0 |
| Dec 9, 2025 | MURPHY ANDREW J | EVP Research | Sell | 1,699 | $712.94 | $1.21M | 0 |
| Dec 9, 2025 | Pitofsky Jason | VP Controller | Sell | 989 | $712.94 | $705.1K | 0 |
| Dec 9, 2025 | Van Plew Daniel P | EVP & General Mgr, Industrial | Sell | 1,906 | $712.94 | $1.36M | 0 |
| Nov 24, 2025 | Bassler Bonnie L | Director | Sell | 760 | $750.00 | $570.0K | 0 |
| Nov 24, 2025 | LAROSA JOSEPH J | EVP General Counsel and Secret | Sell | 12,686 | $736.77 | $9.35M | 0 |
| Nov 10, 2025 | Pitofsky Jason | VP Controller | Sell | 431 | $651.43 | $280.8K | 0 |
| Oct 31, 2025 | MURPHY ANDREW J | EVP Research | Sell | 32,490 | $648.82 | $21.08M | 0 |
| Oct 31, 2025 | POON CHRISTINE A | Director | Sell | 6,500 | $654.27 | $4.25M | 0 |
| Nov 5, 2024 | McCourt Marion | EVP Commercial | Sell | 1,000 | $844.61 | $844.6K | 12,931 |
| Oct 3, 2024 | McCourt Marion | EVP Commercial | Sell | 1,000 | $1054.06 | $1.05M | 12,931 |
| Oct 3, 2024 | RYAN ARTHUR F | Director | Sell | 100 | $1048.78 | $104.9K | 17,679 |
| Sep 5, 2024 | McCourt Marion | EVP Commercial | Sell | 1,000 | $1178.73 | $1.18M | 12,931 |
| Sep 5, 2024 | RYAN ARTHUR F | Director | Sell | 100 | $1178.68 | $117.9K | 17,778 |
| Aug 29, 2024 | Fenimore Christopher R. | SVP Finance & CFO | Sell | 5,680 | $1205.33 | $6.85M | 1,378-80% |
| Aug 19, 2024 | Bassler Bonnie L | Director | Sell | 756 | $1170.00 | $884.5K | 1,382-35% |
| Aug 19, 2024 | POON CHRISTINE A | Director | Sell | 10,838 | $1158.17 | $12.55M | 11,998-47% |
| Aug 15, 2024 | MURPHY ANDREW J | EVP Research | Sell | 6,363 | $1153.15 | $7.34M | 54,614 |
| Aug 12, 2024 | STAHL NEIL | EVP Research and Development | Sell | 5,197 | $1084.54 | $5.64M | 56,096 |
| Aug 7, 2024 | Pitofsky Jason | VP Controller | Sell | 487 | $1070.00 | $521.1K | 4,204 |
| Aug 5, 2024 | Bassler Bonnie L | Director | Sell | 756 | $1115.00 | $842.9K | 1,382-35% |
| Aug 5, 2024 | McCourt Marion | EVP Commercial | Sell | 1,137 | $1060.86 | $1.21M | 12,931 |
| Aug 5, 2024 | RYAN ARTHUR F | Director | Sell | 100 | $1085.67 | $108.6K | 17,881 |
| Jul 12, 2024 | LAROSA JOSEPH J | EVP General Counsel and Secret | Sell | 1,866 | $1088.95 | $2.03M | 37,937 |
| Jul 2, 2024 | McCourt Marion | EVP Commercial | Sell | 1,137 | $1047.11 | $1.19M | 12,931 |
| Jul 2, 2024 | RYAN ARTHUR F | Director | Sell | 100 | $1059.24 | $105.9K | 17,979 |
| Jun 25, 2024 | Bassler Bonnie L | Director | Sell | 756 | $1062.00 | $802.9K | 1,382-35% |
| Jun 17, 2024 | BROWN MICHAEL S | Director | Sell | 1,535 | $1040.00 | $1.60M | 1,382-53% |
| Jun 13, 2024 | SCHLEIFER LEONARD S | Bd. Co-Chair, President & CEO | Sell | 25,213 | $1015.75 | $25.61M | 56,877-31% |
| Jun 10, 2024 | SCHLEIFER LEONARD S | Bd. Co-Chair, President & CEO | Sell | 787 | $1015.02 | $798.8K | 64,198 |
| Jun 7, 2024 | Bassler Bonnie L | Director | Sell | 827 | $1011.00 | $836.1K | 1,382-37% |
| Jun 5, 2024 | McCourt Marion | EVP Commercial | Sell | 1,138 | $980.16 | $1.12M | 12,931 |
| Jun 5, 2024 | RYAN ARTHUR F | Director | Sell | 100 | $994.50 | $99.4K | 18,080 |
| May 29, 2024 | BROWN MICHAEL S | Director | Sell | 1,172 | $974.86 | $1.14M | 1,382-46% |
| May 22, 2024 | LAROSA JOSEPH J | EVP General Counsel and Secret | Sell | 1,865 | $994.90 | $1.86M | 34,678 |
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