Welcome to our dedicated page for GSK plc SEC filings (Ticker: GSK), 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.
GSK plc filings document the company's foreign private issuer disclosures for its American Depositary Shares and ordinary share capital. Recent Form 6-K reports cover product and collaboration announcements, share buyback activity, total voting rights, treasury shares, major holdings notifications and transactions by persons discharging managerial responsibilities.
The filing record also includes governance disclosures such as annual general meeting results, remuneration votes, board elections and shareholder resolutions. These reports connect GSK's biopharma operations with formal disclosures on capital structure, ownership, executive and director dealings, regulatory updates and shareholder governance.
GSK plc reports that its RSV vaccine Arexvy has been approved by the European Commission for expanded use in adults aged 18 years and older. The vaccine was previously authorised in the European Economic Area for preventing lower respiratory tract disease caused by RSV in adults 60 and over and in adults 50 to 59 at increased risk.
This broader indication means European countries can now make Arexvy available to all adults 18+, potentially addressing a substantial disease burden. In the European Union, an average of 158,000 adults aged 18 and over are hospitalised each year with RSV-related illness. GSK notes that RSV can worsen chronic conditions such as COPD, asthma and chronic heart failure and can lead to pneumonia, hospitalisation and death.
The company highlights that Arexvy combines a recombinant RSV glycoprotein F antigen with GSK’s AS01E adjuvant, and that its use should follow official recommendations since not all vaccinees may develop protective immunity. GSK is also seeking expanded indications for this RSV vaccine in other geographies, including the US and Japan.
GSK plc has entered a definitive agreement to acquire RAPT Therapeutics for $58.00 per share in cash, valuing RAPT at an estimated aggregate equity value of $2.2 billion and implying an upfront investment of $1.9 billion net of cash acquired. The deal gives GSK global rights to ozureprubart, a long-acting anti-IgE monoclonal antibody in phase IIb development for prophylactic protection against food allergens, excluding mainland China, Macau, Taiwan and Hong Kong.
Ozureprubart is designed to be dosed every 12 weeks versus the current anti-IgE standard requiring injections every 2 to 4 weeks, and targets a large unmet need in food allergies, which affect over 17 million people in the US. GSK will launch a tender offer for all outstanding RAPT shares and then complete a second-step merger, with the transaction subject to customary conditions, including a majority tender and US antitrust clearance, and expected to close in the first quarter of 2026.
GSK has agreed with Pfizer and Shionogi to reshape their stakes in HIV specialist ViiV Healthcare. Pfizer’s 11.7% economic interest will be replaced by new ViiV shares issued to Shionogi for $2.125 bn. After the deal, GSK will retain a 78.3% majority economic interest in ViiV Healthcare and Shionogi’s economic interest will increase to 21.7%.
As part of the consideration, Pfizer will receive $1.875 bn in cash and GSK will receive a special dividend of $0.250 bn, payable in GBP. Completion is subject to regulatory clearances in relevant markets and is expected in the first quarter of 2026. On completion, GSK plans to extinguish the Pfizer put option liability through retained earnings, with any final fair value adjustment recorded as an adjusting item in other operating income.
GSK plc reports multiple routine share transactions by senior leaders and board members. Executives and persons closely associated with them acquired small numbers of GSK ordinary shares of 31¼ pence each and American Depositary Shares through dividend reinvestment and the company’s Share Reward Plan.
Dividend-related acquisitions on 8 January 2026 were priced around £18.9433 and £18.9464 per ordinary share and about $50.2200–$50.4345 per ADS, with some awards recorded as increases in notional interests in the Deferred Annual Bonus Plan. Additional ordinary shares were acquired on 12 January 2026 under the Share Reward Plan at £18.9321, including both partnership and matching shares.
GSK plc reported that two senior executives acquired ordinary shares through the company’s Share Save Plan. David Redfern, President, Corporate Development, and Victoria Whyte, SVP & Company Secretary, each exercised options granted on 28 November 2022 to buy 790 ordinary shares at an option price of £11.39 per share. The transactions, both carried out on 2 January 2026 on the London Stock Exchange, reflect routine participation in an employee share plan rather than open‑market buying. These acquisitions slightly increase each executive’s direct shareholding and align them further with the company’s equity.
GSK plc reported its share capital and voting rights position as of 31 December 2025. The company’s issued share capital consisted of 4,315,445,026 ordinary shares of 31 ¼ pence each, with 240,019,489 of these shares held in treasury and therefore not carrying voting rights. As a result, the total number of voting rights in GSK is 4,075,425,537. Shareholders can use this figure to determine whether they need to notify GSK and the UK Financial Conduct Authority of any interests or changes in their shareholdings under the Disclosure Guidance and Transparency Rules.
GSK reports that China’s National Medical Products Administration has approved Nucala (mepolizumab) as an add-on maintenance treatment for adults with chronic obstructive pulmonary disease (COPD) that remains inadequately controlled and is characterised by raised blood eosinophils. The decision is based on positive phase III MATINEE and METREX trials, where mepolizumab plus standard care produced a statistically significant reduction in the annual rate of moderate or severe COPD exacerbations versus placebo, including events leading to emergency department visits and hospitalisation.
Nucala is described as the first and only monthly biologic in China studied in a broad COPD population with blood eosinophil counts starting at 150 cells/µL. GSK notes that around 100 million people in China are living with COPD and that among patients who continue to exacerbate despite inhaled triple therapy, about 67% have blood eosinophil counts above 150 cells/µL, suggesting a substantial segment of patients who may be eligible for this new add-on treatment option.
GSK plc has entered into an agreement with the U.S. Administration to lower the cost of its prescription medicines for American patients, including its broad respiratory portfolio used by more than 40 million people in the U.S. with asthma and COPD. The agreement delivers on all four actions requested by President Trump in his July 31 letter, including lowering prices for certain medicines in Medicaid and launching new products with a more balanced pricing approach across developed nations.
GSK will also offer most of its inhaled respiratory portfolio and other products through a direct purchasing platform that can provide savings of up to 66% for patients. As part of the President's Strategic Active Pharmaceutical Ingredients Reserve, GSK will secure a U.S. reserve of albuterol, a key ingredient in many inhalers. The agreements cover both GSK and ViiV Healthcare, clarify the future U.S. pricing framework, and exclude them from s232 tariffs for three years. GSK reiterates its plan to invest more than $30bn in U.S. R&D and manufacturing over five years, including $2bn of new commitments that are expected to create hundreds of highly skilled U.S. jobs.
GSK plc disclosed several share purchases by board members and a person closely associated with the Non-Executive Chair. On 19 December 2025, Independent Non-Executive Director Wendy Becker bought 441 ordinary shares at £18.0909 each on the London Stock Exchange. On the same date, Independent Non-Executive Director Elizabeth (Liz) McKee Anderson bought 201 American Depositary Shares (ADSs) at $48.5550, Senior Independent Non-Executive Director Charles Bancroft bought 1,577 ADSs at $48.5550, and Independent Non-Executive Directors Dr Anne Beal, Dr Hal Dietz and Dr Jeannie Lee purchased 201, 201 and 202 ADSs respectively at $48.5550 on the New York Stock Exchange. Dr Vishal Sikka acquired 730 ADSs at $48.5550 on the same date. On 22 December 2025, Lady Susan Symonds, a person closely associated with the Non-Executive Chair, purchased 1,650 ordinary shares at £18.1046 on the London Stock Exchange.
GSK plc reports that, acting through BNP Paribas SA, it repurchased 232,912 of its ordinary shares on 19 December 2025 as part of its existing share buyback programme. The shares were bought at prices between 1,798.50p and 1,818.00p, with a volume-weighted average price of 1,807.58p, and will be held as treasury shares.
Since 30 September 2025, GSK has repurchased 14,554,645 ordinary shares under this programme. After the latest transactions, the company holds 240,019,489 shares in treasury and has 4,075,425,537 ordinary shares in issue, which is also the total number of voting rights. GSK states that, in line with regulatory rules, 5.89% of its voting rights are now attributable to shares held in treasury.