Welcome to our dedicated page for Seagate Technology Hldngs 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.
Seagate Technology Holdings plc filings document material-event disclosures for an Ireland-incorporated data storage company whose ordinary shares trade on the Nasdaq Global Select Market under STX. Recent Form 8-K filings cover operating and financial results, quarterly cash dividend declarations, supplemental financial information, and Regulation FD disclosures.
The company’s filings also record capital-structure activity involving ordinary-share issuances, private-placement exemptions, material agreements, shareholder voting matters, equity compensation plans, and board-level governance changes. These disclosures describe Seagate’s public-company reporting obligations alongside its mass-capacity storage business and listed ordinary-share structure.
Seagate Technology Holdings plc CEO William D. Mosley reported a series of open-market transactions in Ordinary Shares. On May 20, 2026, he sold 30,000 Ordinary Shares in multiple trades pursuant to a Rule 10b5-1 trading plan adopted on February 18, 2026.
The shares were sold in price ranges from $741.70 to $763.70, with each line item reflecting a weighted average sale price. On the same date, Mosley exercised 14,000 nonqualified stock options at an exercise price of $46.23 per share, acquiring the same number of Ordinary Shares. Following these transactions, he holds 339,591 Ordinary Shares directly and 153,100 nonqualified options with a $46.23 exercise price expiring on September 9, 2027.
Seagate Technology Holdings plc and its subsidiary Seagate HDD Cayman entered into privately negotiated exchange agreements with certain holders of Seagate HDD’s 3.50% Exchangeable Senior Notes due 2028.
The agreements cover $185.908 million principal amount of notes to be exchanged for an aggregate of $185.908 million in cash plus a number of Seagate ordinary shares to be determined over a one trading day period beginning on, and including, May 21, 2026. The exchanges are expected to close on or about May 26, 2026, after which the exchanged notes will be retired and approximately $185.8 million principal amount of notes will remain outstanding with terms unchanged. The exchanges are being conducted as private placements under Section 4(a)(2) of the Securities Act.
Affiliate files proposed sale notice under Form 144 for STX common stock. The filing lists planned issuer-related transactions and recent 10b5-1 sales by an affiliate. It records proposed sales tied to an exercise of stock options for 14,000 shares on 05/20/2026 and previously issued RSU/PSU-related 16,000 shares (10/13/2013). The excerpt also shows three 10b5-1 dispositions: 20,000 shares on 04/01/2026 for $8,414,638.00, 24,584 shares on 03/19/2026 for $10,000,033.68, and 20,000 shares on 03/02/2026 for $7,695,262.00.
Seagate Technology Holdings plc EVP & Chief Commercial Officer Teh Ban Seng reported option exercises and share sales. The filing shows exercises of non-qualified stock options into 8,003 Ordinary Shares at strike prices of $64.31, $68.83, and $101.34, followed by open-market sales totaling 15,560 Ordinary Shares at per-share prices generally around $800. Many of the May 13, 2026 sales were executed under a pre-arranged Rule 10b5-1 trading plan adopted on February 11, 2026. After these transactions, Teh directly holds 3,691 Ordinary Shares.
BAN SENG TEH submitted a Form 144 notice for proposed sale of 8,003 shares of Common Stock via a stock option exercise with a transaction date of 05/14/2026. The filing also records 7,557 shares sold in the prior three months and lists a value string 6,540,725.45 in the filing data.
Seagate Technology Holdings plc EVP & CFO Gianluca Romano sold 1,902 Ordinary Shares in a planned open-market transaction. On May 7, 2026, he sold 1,902 shares at $770.00 per share and held 40,945 shares directly afterward. The filing notes all transactions were carried out under a Rule 10b5-1 trading plan adopted on November 26, 2025, indicating these sales were pre-arranged rather than opportunistic.
Seagate Technology Holdings plc EVP & CFO Gianluca Romano reported open-market sales of 22,488 Ordinary Shares of Seagate on May 6, 2026, at prices generally in the mid-$700s per share. After these transactions, he directly holds 42,847 Ordinary Shares.
The filing shows 30 separate sale transactions coded as open-market sales. A footnote states that all trades were made under a pre-arranged Rule 10b5-1 trading plan adopted on November 26, 2025, meaning the sales were scheduled in advance rather than timed discretionarily.
STX reported a Form 144 notice of proposed sales of common stock and equity units through Morgan Stanley Smith Barney LLC.
The filing lists a numeric quantity 24390, an aggregate amount 18804933.90, an additional numeric field 224228992, and an execution date of 05/06/2026. The excerpt also lists 7,110 Performance Stock Units (02/20/2025) and 17,280 Restricted Stock Units (12/09/2023).
Seagate Technology Holdings plc director Stephanie Tilenius reported selling a total of 1,580 Ordinary Shares in open-market transactions. She sold 40 shares at a weighted average price of $767.3300 and 1,540 shares at $766.5953. According to the filing, the trades were executed in multiple transactions at prices ranging from $766.29 to $767.25. Following these sales, she directly holds 10,664 Ordinary Shares of Seagate.