Regeneron Pharmaceuticals Inc (REGN) Insider Trading
- $2,302,592,942.58
- $1,649,040,872.63
- Feb. 9, 2026
- Sanofi
| Trader Name | Date | Title | Amount | Price | Type | Total Value |
|---|---|---|---|---|---|---|
| Sept. 10, 2019 | Major Shareholder | 172,904 | $281.15 | Sell | $48,611,959.60 | |
| May 15, 2019 | Director | 1,000 | $305.93 | Sell | $305,930.00 | |
| May 14, 2019 | EVP | 9,853 | $305.74 | Sell | $3,012,456.22 | |
| March 8, 2019 | Major Shareholder | 131,115 | $412.17 | Sell | $54,041,669.55 | |
| Jan. 10, 2019 | Director | 1,791 | $410.00 | Sell | $734,310.00 | |
| Dec. 20, 2018 | VP | 1,848 | $358.97 | Sell | $663,376.56 | |
| Dec. 12, 2018 | Chairman | 6 | $382.32 | Sell | $2,293.92 | |
| Sept. 27, 2018 | Director | 2,000 | $392.26 | Sell | $784,520.00 | |
| Sept. 24, 2018 | Director | 2,000 | $388.65 | Sell | $777,300.00 | |
| Sept. 6, 2018 | Major Shareholder | 104,552 | $406.68 | Sell | $42,519,207.36 | |
| Aug. 22, 2018 | Director | 1,500 | $380.49 | Sell | $570,735.00 | |
| Aug. 2, 2018 | Director | 2,000 | $380.00 | Sell | $760,000.00 | |
| July 10, 2018 | Chairman | 74,670 | $367.22 | Sell | $27,420,317.40 | |
| July 5, 2018 | Director | 2,000 | $360.00 | Sell | $720,000.00 | |
| June 21, 2018 | Chairman | 74,710 | $327.87 | Sell | $24,495,167.70 | |
| June 8, 2018 | Major Shareholder | 121,601 | $309.31 | Sell | $37,612,405.31 | |
| May 24, 2018 | EVP | 11,407 | $295.09 | Sell | $3,366,091.63 | |
| May 9, 2018 | Director | 7,000 | $285.29 | Sell | $1,997,030.00 | |
| March 19, 2018 | Director | 2,000 | $350.02 | Sell | $700,040.00 | |
| March 14, 2018 | Director | 2,000 | $340.00 | Sell | $680,000.00 | |
| Feb. 9, 2018 | Director | 1,000 | $325.60 | Sell | $325,600.00 | |
| Oct. 5, 2017 | Director | 1,500 | $475.00 | Sell | $712,500.00 | |
| Sept. 29, 2017 | Director | 2,000 | $450.00 | Sell | $900,000.00 | |
| Sept. 6, 2017 | SVP | 663 | $498.60 | Sell | $330,571.80 | |
| Sept. 5, 2017 | CFO | 189 | $501.06 | Sell | $94,700.34 | |
| Aug. 31, 2017 | SVP | 427 | $493.43 | Sell | $210,694.61 | |
| Aug. 25, 2017 | Major Shareholder | 72,378 | $481.36 | Buy | $34,839,874.08 | |
| Aug. 24, 2017 | Major Shareholder | 166,415 | $480.93 | Buy | $80,033,965.95 | |
| Aug. 23, 2017 | SVP | 468 | $476.45 | Sell | $222,978.60 | |
| Aug. 22, 2017 | Chairman | 56,213 | $474.48 | Sell | $26,671,944.24 | |
| Aug. 18, 2017 | Chairman | 15,191 | $470.15 | Sell | $7,142,048.65 | |
| Aug. 17, 2017 | Chairman | 1,305 | $470.00 | Sell | $613,350.00 | |
| Aug. 16, 2017 | Chairman | 10,986 | $470.17 | Sell | $5,165,287.62 | |
| Aug. 8, 2017 | SVP | 526 | $472.19 | Sell | $248,371.94 | |
| June 22, 2017 | SVP | 2,269 | $532.42 | Sell | $1,208,060.98 | |
| June 22, 2017 | EVP | 8,306 | $532.55 | Sell | $4,423,360.30 | |
| June 20, 2017 | Director | 3,000 | $500.00 | Sell | $1,500,000.00 | |
| June 16, 2017 | EVP | 21,147 | $468.19 | Sell | $9,900,813.93 | |
| June 15, 2017 | EVP | 8,567 | $468.45 | Sell | $4,013,211.15 | |
| June 9, 2017 | Director | 1,000 | $482.55 | Sell | $482,550.00 | |
| June 2, 2017 | EVP | 2,812 | $479.49 | Sell | $1,348,325.88 | |
| June 2, 2017 | Major Shareholder | 136,050 | $478.17 | Buy | $65,055,028.50 | |
| May 25, 2017 | Chairman | 9,295 | $458.14 | Sell | $4,258,411.30 | |
| May 12, 2017 | Director | 3,000 | $450.00 | Sell | $1,350,000.00 | |
| March 29, 2017 | Director | 1,000 | $400.00 | Sell | $400,000.00 | |
| Jan. 11, 2017 | Major Shareholder | 87,298 | $369.71 | Buy | $32,274,943.58 | |
| Dec. 12, 2016 | Director | 3,000 | $392.02 | Sell | $1,176,060.00 | |
| Nov. 15, 2016 | Director | 2,000 | $429.34 | Sell | $858,680.00 | |
| Nov. 14, 2016 | Director | 2,125 | $450.00 | Sell | $956,250.00 | |
| July 29, 2016 | Director | 2,125 | $425.00 | Sell | $903,125.00 |
Insiders are both buying and selling Regeneron Pharmaceuticals Inc stock.
The insider traders at Regeneron Pharmaceuticals Inc are: Sanofi, Joseph L Goldstein, Robert E Landry, Arthur F Ryan, Marion Mccourt, Michael S Brown, P Roy Vagelos, George L Sing, Neil Stahl, Bonnie L Bassler, Leonard S Schleifer, Christopher R Fenimore, Joseph J Larosa, Plew Daniel P Van, George Yancopoulos, Charles A Baker, Marc Tessier-Lavigne, Michael S Aberman, Robert J Terifay, Joseph Goldstein, Andrew J Murphy, Peter Powchik, Douglas S Mccorkle, Alfred Gilman, N Anthony Coles, Plew Daniel P. Van, Plew Daniel Van, Christine A Poon, Robert E. Landry, Douglas Mccorkle, Huda Y Zoghbi, Jason Pitofsky, Michael Brown, Michael S. Brown, Murray A Goldberg, Murray Goldberg, William Roberts, Arthur F. Ryan, Bonnie L. Bassler, Charles A. Baker, Charles Baker, Douglas S. Mccorkle, George Sing, Joseph L. Goldstein, Leonard Schleifer, Michael Aberman, Robert Alexander Ingram, Robert Terifay, and Alfred G Gilman
The most active insider trader at Regeneron Pharmaceuticals Inc is Sanofi with 39 trades.
Leonard S Schleifer has sold the most Regeneron Pharmaceuticals Inc stock with a total value of $335,429,753.65.
Sanofi has bought the most Regeneron Pharmaceuticals Inc stock with a total value of $2,337,432,816.66.
The most recent insider trade for Regeneron Pharmaceuticals Inc was on Feb. 9, 2026.
The single biggest insider buy for Regeneron Pharmaceuticals Inc was from Sanofi with a total value of $125,731,578.12 on March 11, 2014.
The single biggest insider sell for Regeneron Pharmaceuticals Inc was from Leonard S Schleifer with a total value of $130,006,000.00 on Aug. 18, 2021.