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 (STX) is the issuer for a notice filed on behalf of William D. Mosley to sell common stock under Rule 144. The notice covers up to 102,784 shares of common stock to be sold through Morgan Stanley, with an aggregate market value of $79,363,744.68, compared with 226,644,518 shares outstanding as of September 15, 2026; this is a baseline figure, not the amount being offered. The shares relate to 177,000 shares of common stock issued on September 14, 2026 due to Performance Share Unit vesting as compensation for services. Recent sales in the prior three months include blocks of 30,000 shares on July 1, 2026 and 30,000 shares on August 3, 2026. The notice states that sales are to be made pursuant to an issuer-mandated sell-to-cover solely to satisfy tax withholding obligations.
Seagate Technology Holdings plc (STX) received a Rule 144 notice for planned sales of its common stock by officer John Christopher Morris. The notice covers 16,239 shares of Seagate common stock with an aggregate market value of $12,538,789.60, based on an outstanding share count of 226,644,518 shares as of September 15, 2026.
The securities to be sold arise from 30,130 common shares acquired through Performance Share Unit vesting on September 14, 2026 as compensation for services. Over the prior three months, Morris reported additional sales totaling several thousand shares on multiple dates. The filing states that sales are to be made pursuant to an issuer-mandated sell-to-cover program solely to satisfy tax withholding obligations.
Seagate Technology Holdings plc (STX) received a notice that officer Ban Seng Teh has filed to sell 52,730 shares of Seagate common stock under Rule 144 through Morgan Stanley Smith Barney LLC Executive Financial Services on NASDAQ. The notice lists prior Rule 144 sales of Seagate common stock by the same person during the past three months.
Seagate Technology Holdings plc (STX) EVP & Chief Commercial Officer Teh Ban Seng reported an automatic vesting and related sale of shares. On September 11, 2026, 989 Restricted Share Units vested and were converted into 989 Ordinary Shares at $0.00 per share. On September 14, 2026, 989 Ordinary Shares were sold at $779.00 per share under a Rule 10b5-1 trading plan adopted on February 11, 2026.
Seagate Technology Holdings plc (STX) executive vice president of Global Operations Chong Kian Fatt exercised 678 restricted share units into 678 ordinary shares on September 11, 2026 at an exercise price of $0.00 per share under the 2022 Equity Incentive Plan, with no Rule 10b5-1 plan reported. Following this vesting event, he holds 10,623 ordinary shares directly and 2,714 restricted share units, which are scheduled to continue vesting in equal quarterly installments over a four-year period.
Seagate Technology Holdings plc (STX) reported that EVP & CTO John Christopher Morris had restricted share units convert into ordinary shares and then sold a portion of those shares to cover taxes. On September 11, 2026, 942 RSUs converted into 942 ordinary shares, and on September 14, 2026, 492.75 ordinary shares were sold in an issuer-mandated sell-to-cover transaction tied solely to tax withholding obligations. Following the RSU conversion, 3,768 restricted share units remain outstanding under the company’s 2022 Equity Incentive Plan.
Seagate Technology Holdings plc (STX) reported insider transactions by EVP & CFO Gianluca Romano, who sold a total of 5,555 Ordinary Shares in multiple open-market trades on September 11 and 14, 2026, at prices generally in the mid-$800s per share. The September 11 sales were effected pursuant to a Rule 10b5-1 trading plan adopted on April 30, 2026, and a separate sale of 955 shares at $781.24 on September 14, 2026 was an issuer-mandated sell-to-cover solely to satisfy tax withholding obligations. Romano also exercised 1,695 Restricted Share Units into Ordinary Shares and, following that vesting, is reported as holding 6,780 Restricted Share Units directly.
Seagate Technology Holdings plc (STX) reported that its EVP & CFO, Gianluca Romano, on September 11, 2026 exercised stock options covering 50,498 Ordinary Shares at strike prices of $64.31, $68.83, $101.34 and $158.40 per share and acquired the corresponding shares. On the same date he sold 45,898 Ordinary Shares in a series of open-market transactions at weighted-average prices generally between the high $818s and low $844s per share. All the option exercises and share sales were effected pursuant to a Rule 10b5-1 trading plan adopted on April 30, 2026.
Seagate Technology Holdings plc (STX) CEO and director William D. Mosley reported equity transactions involving ordinary shares and restricted share units. On September 11, 2026, 3,319 restricted share units were converted into 3,319 ordinary shares, and on September 14, 1,869.75 shares were sold in issuer-mandated sell-to-cover transactions solely to satisfy tax withholding obligations.
Seagate Technology Holdings plc (STX) discloses that officer John Christopher Morris has filed a notice to sell common stock under Rule 144, using Morgan Stanley as broker. The filing reports a planned sale of 518 shares, with earlier sales tied to issuer-mandated sell-to-cover for tax withholding.