Seagate Technology PLC (STX) Insider Trading

Total insider buys:
  • $563,582,328.51
Total insider sells:
  • $1,011,149,548.00
Most recent insider trade:
  • July 11, 2025
Most active insider trader:
  • Stephen J Luczo
Trader NameDateTitleAmountPriceTypeTotal Value
March 4, 2022Director50,000$103.26Sell$5,163,000.00
Feb. 22, 2022Director272,297$108.01Sell$29,410,798.97
Feb. 17, 2022Director1,750,000$108.00Sell$189,000,000.00
Jan. 31, 2022Director4,300$107.50Sell$462,250.00
Jan. 5, 2022EVP3,158$115.55Sell$364,906.90
Dec. 10, 2021Director7,000$103.12Sell$721,840.00
Nov. 15, 2021Director300,000$106.26Sell$31,878,000.00
Nov. 11, 2021Director815,000$105.39Sell$85,892,850.00
Nov. 9, 2021SVP2,293$98.84Sell$226,640.12
Nov. 5, 2021EVP20,000$96.36Sell$1,927,200.00
Nov. 1, 2021EVP323$91.56Sell$29,573.88
Oct. 7, 2021EVP201$81.28Buy$16,337.28
Oct. 4, 2021CFO26,139$84.40Sell$2,206,131.60
Sept. 13, 2021EVP2,822$83.86Sell$236,652.92
Sept. 10, 2021EVP2,340$87.23Sell$204,118.20
Aug. 6, 2021EVP7,250$91.35Sell$662,287.50
July 8, 2021EVP122$87.73Buy$10,703.06
June 10, 2021Director12,043$97.58Sell$1,175,155.94
May 3, 2021CEO77,754$92.49Sell$7,191,467.46
April 30, 2021SVP24,525$95.70Sell$2,347,042.50
April 26, 2021Director100,000$92.13Sell$9,213,000.00
March 11, 2021Director7,000$77.38Sell$541,660.00
March 5, 2021SVP4,525$73.20Sell$331,230.00
March 4, 2021Director75,000$71.95Sell$5,396,250.00
Feb. 18, 2021EVP10,000$72.78Sell$727,800.00
Jan. 27, 2021EVP38,689$68.76Sell$2,660,255.64
Jan. 15, 2021Insider703,034$60.24Sell$42,350,768.16
Jan. 15, 2021Director8,706$60.05Sell$522,795.30
Jan. 13, 2021Director132,771$60.01Sell$7,967,587.71
Jan. 8, 2021Insider617,691$60.25Sell$37,215,882.75
Jan. 8, 2021Director39,559$60.35Sell$2,387,385.65
Jan. 6, 2021Director356,572$60.31Sell$21,504,857.32
Jan. 4, 2021Director291,713$60.85Sell$17,750,736.05
Dec. 31, 2020Insider1,414,550$61.20Sell$86,570,460.00
Dec. 31, 2020Director680,016$61.42Sell$41,766,582.72
Dec. 29, 2020Director336,032$61.12Sell$20,538,275.84
Dec. 23, 2020EVP17,742$63.46Sell$1,125,907.32
Dec. 7, 2020SVP4,695$63.42Sell$297,756.90
Dec. 4, 2020EVP37,152$62.92Sell$2,337,603.84
Dec. 3, 2020Director20,000$62.55Sell$1,251,000.00
Dec. 1, 2020EVP15,000$59.83Sell$897,450.00
Nov. 23, 2020EVP4,145$56.50Sell$234,192.50
Oct. 20, 2020Director7,000$52.49Sell$367,430.00
Oct. 8, 2020Director56,000$51.00Sell$2,856,000.00
Sept. 3, 2020Director16,698$47.74Sell$797,162.52
July 23, 2020SVP498$50.00Sell$24,900.00
June 16, 2020Director7,000$52.35Sell$366,450.00
June 12, 2020SVP498$52.80Sell$26,294.40
June 2, 2020Director7,000$51.74Sell$362,180.00
May 20, 2020Director5,000$50.91Sell$254,550.00
  • 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, James J Murphy, Gianluca Romano, David K Richarz, Jay L Geldmacher, Malley Patrick J O, John Christopher Morris, Albert A Pimentel, Philip G Brace, Kenneth M Massaroni, Ravi Naik, Chong Sup Park, Stephen J. Luczo, Edward J Zander, David H. Morton, Jr., Frank Biondi, Stephen Luczo, Yolanda Lee Conyers, Elizabeth Moore, Kian Fatt Chong, William D. Mosley, Edward J. Zander, Douglas J Dehaan, Stephanie Tilenius, Jeffrey D Fochtman, Michael Cannon, Michael R Cannon, Judy Bruner, Douglas Dehaan, David Richarz, Dambisa F Moyo, Albert Pimentel, Jeffrey D. Nygaard, Nicholls Stuart, Jay Geldmacher, Kathryn R Scolnick, James J. Murphy, Lydia Micheaux Marshall, Gregorio Reyes, and Mark Adams

  • 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 July 11, 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.