Regeneron Pharmaceuticals Inc (REGN) Insider Trading

Total insider buys:
  • $2,302,592,942.58
Total insider sells:
  • $1,649,040,872.63
Most recent insider trade:
  • Feb. 9, 2026
Most active insider trader:
  • Sanofi
Trader NameDateTitleAmountPriceTypeTotal Value
July 21, 2020VP3,709$642.04Sell$2,381,326.36
July 21, 2020CFO391$647.58Sell$253,203.78
July 14, 2020CFO579$640.50Sell$370,849.50
July 14, 2020EVP2,380$633.48Sell$1,507,682.40
July 8, 2020CFO1,160$639.66Sell$742,005.60
July 7, 2020Director7,500$650.00Sell$4,875,000.00
July 1, 2020Director3,613$607.62Sell$2,195,331.06
June 29, 2020Director3,000$608.91Sell$1,826,730.00
June 29, 2020CFO400$612.57Sell$245,028.00
June 19, 2020Director2,559$630.02Sell$1,612,221.18
June 16, 2020VP3,556$590.89Sell$2,101,204.84
June 11, 2020Director3,412$588.39Sell$2,007,586.68
June 9, 2020CFO4,271$606.59Sell$2,590,745.89
June 8, 2020Director10,838$608.59Sell$6,595,898.42
June 5, 2020Director2,559$600.00Sell$1,535,400.00
June 1, 2020Director100$603.23Sell$60,323.00
May 28, 2020Director1,000$579.00Sell$579,000.00
May 21, 2020Chairman783$577.49Sell$452,174.67
May 13, 2020Director5,000$580.00Sell$2,900,000.00
May 12, 2020CEO150,922$569.22Sell$85,907,820.84
May 11, 2020Director850$575.00Sell$488,750.00
May 6, 2020Director2,000$560.00Sell$1,120,000.00
May 1, 2020Director100$520.37Sell$52,037.00
April 20, 2020EVP1,778$570.30Sell$1,013,993.40
April 20, 2020CFO3,250$566.94Sell$1,842,555.00
April 17, 2020CFO991$557.68Sell$552,660.88
April 17, 2020EVP2,267$557.38Sell$1,263,580.46
April 15, 2020CFO853$518.49Sell$442,271.97
April 14, 2020EVP5,497$521.07Sell$2,864,321.79
April 13, 2020CFO828$509.79Sell$422,106.12
April 7, 2020CFO696$497.52Sell$346,273.92
April 2, 2020CFO105$495.88Sell$52,067.40
April 2, 2020EVP6,797$489.98Sell$3,330,394.06
April 1, 2020VP1,200$488.41Sell$586,092.00
April 1, 2020Director100$483.85Sell$48,385.00
March 30, 2020Director100$466.69Sell$46,669.00
Feb. 27, 2020EVP10,349$452.26Sell$4,680,438.74
Feb. 26, 2020Director2,500$460.00Sell$1,150,000.00
Feb. 25, 2020CFO214$449.01Sell$96,088.14
Jan. 27, 2020EVP8,000$340.91Sell$2,727,280.00
Jan. 2, 2020Director15,000$371.98Sell$5,579,700.00
Dec. 13, 2019VP1,682$376.14Sell$632,667.48
Dec. 13, 2019Chairman51,842$376.04Sell$19,494,665.68
Nov. 27, 2019Director1,000$370.00Sell$370,000.00
Nov. 26, 2019EVP4,006$364.07Sell$1,458,464.42
Nov. 25, 2019Chairman22,149$363.83Sell$8,058,470.67
Nov. 22, 2019Director1,000$360.00Sell$360,000.00
Nov. 12, 2019Director4,500$349.00Sell$1,570,500.00
Nov. 8, 2019Director1,000$340.44Sell$340,440.00
Nov. 8, 2019EVP7,364$338.52Sell$2,492,861.28
  • 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.