Welcome to our dedicated page for Seagate Technology Holdings plc SEC filings (Ticker: STX), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
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Seagate Technology Holdings plc executive vice president and chief financial officer Gianluca Romano reported open-market sales of 7,240 Ordinary Shares on August 7, 2026. The shares were sold in multiple tranches at weighted-average prices generally ranging from about $762.99 to $798.97 per share. All reported sales were effected pursuant to a Rule 10b5-1 trading plan adopted on April 30, 2026, and prices disclosed for each line item represent weighted-average sale prices for multiple trades within the stated ranges.
STX reports that shareholder Gianluca Romano plans to sell up to 22,211 shares of common stock through Morgan Stanley Smith Barney LLC Executive Financial Services on or after 08/07/2026 on NASDAQ. These shares relate to restricted stock units and performance stock units acquired from the issuer on 12/09/2024.
In the preceding three months, Romano sold 903 shares on 06/12/2026 for 794,809.13 and 1,350 shares on 06/10/2026 for 1,109,369.49. The common stock had 226,644,518 shares outstanding, with the proposed sale valued at 18,944,872.45 based on the referenced market price.
Sanders Capital, LLC and Lewis A. Sanders report their beneficial ownership of Seagate Technology Holdings plc common stock in an amended Schedule 13G filing. They report beneficial ownership of 3,496,343 shares, representing 1.56% of the common stock. Sanders Capital and Sanders have shared voting power over 1,687,070 shares and shared dispositive power over 3,496,343 shares, with no sole voting or dispositive power. The filing states that Lewis A. Sanders is listed as a beneficial owner because he owns approximately 40% of Sanders Capital, LLC and serves as its CEO and co-Chief Investment Officer with decision-making authority.
Seagate Technology Holdings plc executive John Christopher Morris, EVP & CTO, reported selling 168 Ordinary Shares on August 3, 2026 at $817.76 per share. After this open-market or private transaction, he held 11,920.25 shares directly. The sale was executed under a Rule 10b5-1 trading plan adopted on January 29, 2026.
Seagate Technology Holdings plc CEO and director William D. Mosley reported sale transactions totaling 17,080 Ordinary Shares on August 3, 2026, across 19 trades at weighted-average prices between $818.84 and $837.99 per share. All transactions were executed under a Rule 10b5-1 trading plan adopted on February 18, 2026.
Seagate Technology Holdings plc CEO William D. Mosley exercised 14,000 stock options at $46.23 on August 3, 2026, receiving 14,000 ordinary shares, then sold 12,920 shares in multiple trades at weighted-average prices within $783.83–$818.58 per share. All transactions were executed under a Rule 10b5-1 trading plan adopted on February 18, 2026. Following the option exercise, he continued to hold 111,100 options.
Seagate Technology Holdings plc is a leading provider of mass‑capacity data storage solutions for Data Center and Edge IoT markets, supplying HDDs up to 44TB and storage systems up to 3.5PB. The company relies on vertically integrated engineering and global manufacturing across China, Malaysia, Northern Ireland, Singapore, Thailand and the United States.
Management highlights strong structural demand for storage as IDC forecasts the global datasphere to grow at about 27% annually through 2030, reaching roughly 718 zettabytes. Growth is driven by cloud expansion, AI‑enabled workloads, longer data retention and regulatory requirements, with most revenue derived from Data Center customers.
Key risks include intense competition from HDD and flash suppliers, rapid technology shifts, dependence on a few large customers (one contributed 14% of 2026 revenue), supply chain concentration including rare earths, macroeconomic and FX volatility, cybersecurity threats, regulatory and trade exposure, and high fixed manufacturing and debt‑service obligations. As of July 3 2026 Seagate reports about 30,000 employees and a sizable IP portfolio of 3,036 U.S. patents. Non‑affiliate share value was approximately $65.0 billion, with 226,644,518 ordinary shares outstanding.
Seagate Technology Holdings plc executive James CI Lee, EVP & CLO, reported selling 694 Ordinary Shares on July 30, 2026 at $877.45 per share in a sale transaction executed under a Rule 10b5-1 trading plan adopted on January 29, 2026.
After this sale, he directly holds 346.75 Ordinary Shares, which include 22 shares purchased on July 31, 2026 through the issuer's Employee Stock Purchase Plan, an acquisition exempt from reporting under Rule 16b-3.
Vanguard Portfolio Management LLC filed an amended Schedule 13G reporting beneficial ownership of 7,999,686 shares of Seagate Technology Holdings PLC common stock. This position represents 3.56% of the class as of the reported date.
Vanguard reports no sole or shared voting power over these shares but has sole dispositive power over 7,999,686 shares and no shared dispositive power. The filing aggregates securities beneficially owned or deemed beneficially owned by Vanguard Portfolio Management LLC and certain of its affiliates and business divisions, including Vanguard Fiduciary Trust Company and Vanguard Global Advisers, LLC. Vanguard notes that various funds and managed accounts have the right to receive dividends and sale proceeds, and that no other single person has an interest in more than 5% of the class through these holdings.
James C. Lee filed a Form 144 indicating an intention to sell up to 694 shares of common stock of STX through Morgan Stanley Smith Barney LLC’s Executive Financial Services. The planned sale has an aggregate market value of $530,514.42, with 224,228,992 shares outstanding as of July 30, 2026.
During the prior three months, Lee sold 542 shares on July 23, 2026 for $490,514.72 and 697 shares on May 4, 2026 for $516,595.49, with the filing noting these as 10b5-1 sales.