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 selling 9,343 Ordinary Shares of STX in open-market transactions. The sales occurred on July 1, 2026 at prices referenced as weighted averages for ranges between $919.19 and $934.61, according to the footnotes.
All transactions were carried out under a pre-arranged Rule 10b5-1 trading plan adopted on February 18, 2026, indicating they were scheduled in advance. Following the reported trades, Mosley directly held 319,380 Ordinary Shares of Seagate.
Seagate Technology Holdings plc CEO William D. Mosley reported a series of insider trades in Ordinary Shares. On July 1, 2026, he executed open-market sales totaling 20,657 shares at prices generally around $890–$920 per share, in multiple transactions.
These sales were carried out under a pre-arranged Rule 10b5-1 trading plan adopted on February 18, 2026. On the same date, Mosley also exercised options to acquire 14,000 Ordinary Shares at an exercise price of $46.23 per share. Following these transactions, he directly held 341,517 Ordinary Shares and 125,100 NQ Options.
Seagate Technology Holdings plc EVP & CTO John Christopher Morris reported several equity transactions. On June 12, 2026, he sold a total of 1,364 Ordinary Shares in open-market transactions at an average price of $880.19 per share under a Rule 10b5-1 trading plan adopted on January 29, 2026. The day before, on June 11, 2026, he exercised 942 restricted share units into the same number of Ordinary Shares at $0.00 per share. After these transactions, he directly owns 12,088.25 Ordinary Shares and 4,710 restricted share units granted under the company’s 2022 Equity Incentive Plan, which vest quarterly over a total four-year period, subject to his continued employment.
Seagate Technology Holdings plc EVP & Chief Commercial Officer Teh Ban Seng exercised and sold shares in a routine, pre-planned transaction. On June 11, 2026, he exercised 989 Restricted Share Units into the same number of Ordinary Shares at $0.00 per share. On June 12, 2026, he executed an open-market sale of 989 Ordinary Shares at an average price of $880.19 per share under a Rule 10b5-1 trading plan adopted on February 11, 2026. After the sale, he directly owned 4,290 Ordinary Shares and held 4,945 Restricted Share Units from the referenced grant, which continues to vest over a four-year period, subject to continued employment.
Seagate Technology Holdings plc executive Chong Kian Fatt exercised restricted share units into ordinary shares in a routine compensation-related move. On June 11, 2026, he converted 678 Restricted Share Units into 678 Ordinary Shares, with no sale of stock reported.
The Restricted Share Units were granted under the Seagate Technology Holdings plc 2022 Equity Incentive Plan and vest over four years, with one-quarter vesting starting on September 11, 2024 and the remainder in equal quarterly installments. Following the transaction, Chong directly holds 2,518 Ordinary Shares and 3,392 Restricted Share Units.
Seagate Technology Holdings plc EVP & CFO Gianluca Romano reported both an equity award vesting and a small open-market sale of company stock. On June 11, 2026, he exercised 1,695 Restricted Share Units at a conversion price of $0.00, receiving the same number of ordinary shares as part of a prior equity grant that vests over four years under the 2022 Equity Incentive Plan.
On June 12, 2026, Romano then completed an open-market sale of 903.25 ordinary shares at an average price of $880.1873 per share. Following this sale, he held 42,860.25 ordinary shares directly, and the RSU award referenced in the footnote continues to vest in quarterly installments, subject to his continued employment.
Seagate Technology Holdings plc CEO William D. Mosley reported an open-market sale and related equity award vesting in the company’s ordinary shares. On June 12, 2026, he sold 1,768.25 ordinary shares at an average price of $880.1888 per share.
These shares came from the June 11, 2026 vesting and conversion of 3,319 restricted share units granted under Seagate’s 2022 Equity Incentive Plan. After these transactions, Mosley holds 327,517 ordinary shares directly and 16,595 restricted share units, indicating he retained a substantial equity position alongside the partial sale.
Company STX reported a Form 144 notice indicating proposed sales of Common Stock by an individual associated with the issuer. The filing lists a vesting event of 942 shares on 06/11/2026 described as Restricted Stock Unit Vesting for compensation for service. The filing also lists three transactions by John Christopher Morris totaling 6,312 shares sold during the prior three months (112; 5,626; 574) with corresponding proceeds shown in the excerpt.
Morgan Stanley Smith Barney LLC submitted a Rule 144 notice regarding proposed sales of Common stock for STX tied to restricted stock unit vesting. The filing lists 3,319 shares associated with a 06/11/2026 vesting and multiple dispositions by William Mosley totaling 83,855 shares across April–June 2026.
The document records sale dates and gross proceeds for each Mosley disposition, and labels the 3,319 shares as compensation for service. Timing and method details beyond the listed dates are not included in the excerpt.
Gianluca Romano filed a Form 144 notice to sell Common stock under Rule 144. The filing lists 1,695 shares tied to Restricted Stock Unit Vesting on 06/11/2026 described as Compensation for Service. The filing also reports prior dispositions in the past three months: 22,488 shares on 05/06/2026 for $17,410,693.09, 1,902 shares on 05/07/2026 for $1,464,540.00, and 1,351 shares on 06/10/2026 for $1,109,780.36.