Seagate Technology PLC (STX) Insider Trading

Total insider buys:
  • $563,582,328.51
Total insider sells:
  • $997,164,000.35
Most recent insider trade:
  • June 4, 2025
Most active insider trader:
  • Stephen J Luczo
Trader NameDateTitleAmountPriceTypeTotal Value
Nov. 23, 2018Insider371,086$41.84Buy$15,526,238.24
Nov. 20, 2018Director365,671$41.84Buy$15,299,674.64
Aug. 29, 2018EVP509$56.60Sell$28,809.40
Aug. 21, 2018Insider35,000$55.40Sell$1,939,000.00
Aug. 17, 2018Director23,200$52.95Buy$1,228,440.00
Aug. 16, 2018Insider931,882$52.82Buy$49,222,007.24
Aug. 16, 2018CFO10,577$53.12Sell$561,850.24
Aug. 15, 2018Director500,000$52.78Buy$26,390,000.00
Aug. 13, 2018Insider2,090,783$50.94Buy$106,504,486.02
Aug. 13, 2018Director509,492$51.11Buy$26,040,136.12
Aug. 9, 2018Director581,291$51.36Buy$29,855,105.76
Aug. 2, 2018Insider946,000$52.78Buy$49,929,880.00
Aug. 2, 2018Director125,000$52.87Buy$6,608,750.00
July 31, 2018Director500,000$52.65Buy$26,325,000.00
June 6, 2018Insider100,000$59.05Sell$5,905,000.00
May 17, 2018Insider5,681$60.00Sell$340,860.00
May 14, 2018EVP2,188$57.45Sell$125,700.60
May 9, 2018Director23,618$57.21Sell$1,351,185.78
May 8, 2018Chairman100,000$56.01Sell$5,601,000.00
April 10, 2018Insider4,620$60.00Sell$277,200.00
April 2, 2018Insider5,380$60.00Sell$322,800.00
March 5, 2018CFO35,142$55.00Sell$1,932,810.00
Feb. 23, 2018Director4,475$52.70Sell$235,832.50
Feb. 22, 2018CFO11,491$51.78Sell$595,003.98
Jan. 31, 2018Insider341,738$55.00Sell$18,795,590.00
Jan. 31, 2018EVP14,175$55.16Sell$781,893.00
Jan. 30, 2018Chairman241,738$54.76Sell$13,237,572.88
Jan. 30, 2018Director4,026$54.22Sell$218,289.72
Jan. 11, 2018Insider5,000$48.40Sell$242,000.00
Jan. 9, 2018Insider12,000$46.44Sell$557,280.00
Jan. 8, 2018CFO40,263$48.78Sell$1,964,029.14
Jan. 8, 2018Chairman100,000$48.99Sell$4,899,000.00
Nov. 29, 2017Director15,089$38.79Sell$585,302.31
Nov. 22, 2017Director5,365$40.00Sell$214,600.00
Nov. 6, 2017Insider5,403$36.79Sell$198,776.37
Oct. 27, 2017Insider5,000$37.38Buy$186,900.00
Oct. 25, 2017Director8,715$39.01Sell$339,972.15
Oct. 23, 2017CFO7,909$40.00Sell$316,360.00
Sept. 7, 2017Insider2,500$0.70Sell$1,750.00
Aug. 1, 2017Insider1,000$33.34Buy$33,340.00
June 9, 2017CFO3,040$43.26Sell$131,510.40
May 16, 2017Director3,809$43.63Sell$166,186.67
May 15, 2017SVP9,607$43.47Sell$417,616.29
April 25, 2017CEO100,000$50.00Sell$5,000,000.00
April 12, 2017Insider10,100$1.10Sell$11,110.00
Feb. 24, 2017COO38,581$47.28Sell$1,824,109.68
Feb. 22, 2017CFO6,197$47.34Sell$293,365.98
Sept. 14, 2016CFO1,716$36.16Sell$62,050.56
Sept. 13, 2016CFO2,773$35.98Sell$99,772.54
Aug. 31, 2016SVP5,800$33.58Sell$194,764.00
  • Insiders are both buying and selling Seagate Technology PLC stock.

  • The insider traders at Seagate Technology PLC are: Stephen J Luczo, Holdings L.P. Valueact, Ban Seng Teh, William D Mosley, Jeffrey D Nygaard, David H Morton Jr, Valueact Capital Master Fund,, Mark Re, Katherine Schuelke, Gianluca Romano, James J Murphy, Jay L Geldmacher, David K Richarz, Malley Patrick J O, Albert A Pimentel, John Christopher Morris, Kenneth M Massaroni, Philip G Brace, Ravi Naik, Edward J Zander, Chong Sup Park, Stephen J. Luczo, Frank Biondi, Yolanda Lee Conyers, David H. Morton, Jr., Stephen Luczo, Edward J. Zander, Jeffrey D Fochtman, Douglas J Dehaan, William D. Mosley, Kian Fatt Chong, Elizabeth Moore, David Richarz, Mark Adams, Kathryn R Scolnick, Michael Cannon, Nicholls Stuart, Douglas Dehaan, Judy Bruner, Stephanie Tilenius, Dambisa F Moyo, Albert Pimentel, Jeffrey D. Nygaard, Jay Geldmacher, James J. Murphy, Gregorio Reyes, and Lydia Micheaux Marshall

  • The most active insider trader at Seagate Technology PLC is Stephen J Luczo with 56 trades.

  • Holdings L.P. Valueact has sold the most Seagate Technology PLC stock with a total value of $478,030,668.53.

  • Valueact Capital Master Fund, has bought the most Seagate Technology PLC stock with a total value of $442,438,739.15.

  • The most recent insider trade for Seagate Technology PLC was on June 4, 2025.

  • The single biggest insider buy for Seagate Technology PLC was from Valueact Capital Master Fund, with a total value of $106,504,486.02 on Aug. 13, 2018.

  • The single biggest insider sell for Seagate Technology PLC was from Holdings L.P. Valueact with a total value of $189,000,000.00 on Feb. 17, 2022.