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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
Aug. 24, 2016SVP12,750$31.84Sell$405,960.00
Aug. 9, 2016Director1,251$32.45Sell$40,594.95
Aug. 9, 2016SVP3,082$32.50Sell$100,165.00
June 6, 2016CFO8,038$23.79Sell$191,224.02
May 6, 2016Director12,919$18.98Sell$245,202.62
May 3, 2016CEO200,000$20.08Buy$4,016,000.00
Feb. 18, 2016Director28,200$31.83Sell$897,606.00
Feb. 2, 2016CEO200,000$30.17Buy$6,034,000.00
Feb. 2, 2016Insider5,000$29.10Buy$145,500.00
Nov. 4, 2015CFO3,178$38.94Sell$123,751.32
Sept. 14, 2015CFO6,993$48.28Sell$337,622.04
Aug. 25, 2015SVP115,334$48.75Sell$5,622,532.50
Aug. 14, 2015Insider10,000$51.67Sell$516,700.00
June 5, 2015CEO10,000$54.14Sell$541,400.00
April 27, 2015SVP6,179$58.42Sell$360,977.18
April 27, 2015Insider10,179$58.37Sell$594,148.23
April 24, 2015EVP7,625$58.20Sell$443,775.00
April 24, 2015CEO10,000$58.45Sell$584,500.00
April 23, 2015Insider11,830$58.99Sell$697,851.70
April 10, 2015Insider58,581$55.51Sell$3,251,831.31
March 9, 2015SVP914$57.19Sell$52,271.66
March 9, 2015CEO10,000$57.46Sell$574,600.00
Feb. 23, 2015CEO50,000$61.87Sell$3,093,500.00
Feb. 12, 2015CAO9,250$61.44Sell$568,320.00
Feb. 4, 2015CEO100,000$60.10Sell$6,010,000.00
Feb. 4, 2015EVP17,753$60.10Sell$1,066,955.30
Jan. 29, 2015Director1,459$57.08Sell$83,279.72
Jan. 27, 2015CEO10,000$57.11Sell$571,100.00
Jan. 2, 2015EVP58,581$66.12Sell$3,873,375.72
Dec. 22, 2014CEO10,000$68.33Sell$683,300.00
Dec. 9, 2014EVP58,581$65.53Sell$3,838,812.93
Nov. 24, 2014Director5,000$66.00Sell$330,000.00
Nov. 18, 2014EVP50,000$64.64Sell$3,232,000.00
Nov. 17, 2014EVP10,000$63.90Sell$639,000.00
Nov. 14, 2014EVP17,592$62.44Sell$1,098,444.48
Nov. 4, 2014EVP25,372$64.35Sell$1,632,688.20
Nov. 4, 2014CEO383,813$62.32Sell$23,919,226.16
Nov. 3, 2014CFO13,230$63.34Sell$837,988.20
Oct. 31, 2014EVP65,417$61.88Sell$4,048,003.96
Oct. 30, 2014SVP6,794$60.00Sell$407,640.00
Sept. 15, 2014SVP3,889$59.39Sell$230,967.71
Sept. 15, 2014Insider4,024$59.69Sell$240,192.56
Sept. 15, 2014CAO1,256$59.49Sell$74,719.44
Sept. 15, 2014CFO68,240$59.10Sell$4,032,984.00
Sept. 11, 2014CFO5,913$60.68Sell$358,800.84
Sept. 11, 2014EVP5,916$60.64Sell$358,746.24
Sept. 11, 2014CAO4,975$60.72Sell$302,082.00
Sept. 11, 2014SVP3,158$60.62Sell$191,437.96
Sept. 10, 2014CFO2,738$60.93Sell$166,826.34
Sept. 10, 2014SVP506$61.23Sell$30,982.38
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  • 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.