Vertical Aerospace Ltd.'s SEC filings document the company's reporting as a foreign private issuer developing the Valo electric vertical take-off and landing aircraft. Form 6-K reports include operating and financial reviews, unaudited interim financial statements, prototype flight-test and certification disclosures, and incorporation of certain materials into Form F-3 registration statements.
The filings also record capital-structure and financing matters, including ordinary share issuances, an at-the-market program, senior secured convertible notes, convertible preferred equity and an equity line of credit. Other disclosures cover long-term supplier agreements for Valo components, subsidiary arrangements, intellectual property litigation matters, forward-looking statements and governance or legal information tied to the company's aircraft development program.
Vertical Aerospace Ltd. reports a major test milestone, completing a two-way piloted transition flight of its full-scale tiltrotor eVTOL under direct UK CAA oversight in collaboration with EASA. This flight, performed on 14 April 2026, marks completion of Phase 4 prototype tests, proving smooth transitions between vertical “helicopter” and wingborne “airplane” modes in a single runway-free flight.
The company now plans to advance to the next certification stage, including critical design review and building seven pre-production Valo aircraft in the UK for compliance and verification testing. Vertical is targeting certification of its all‑electric Valo aircraft by 2028, positioning for future commercial operations with an order pipeline and global airline partners.
Saba Capital Management, L.P. filed an initial ownership report for Vertical Aerospace Ltd., disclosing indirect holdings rather than new trades. The firm reports 11,640,503 shares of common stock held indirectly, plus Tranche A and Tranche B warrants each exercisable for 2,083,000 common shares. Tranche A warrants have a $6.00 exercise price and Tranche B warrants a $7.50 exercise price, both currently exercisable and expiring on January 23, 2030.
Vertical Aerospace Ltd. Schedule 13G reports that Citadel-related entities and Mr. Kenneth Griffin disclose shared beneficial ownership positions in the company's Ordinary Shares. Citadel Advisors LLC, Citadel Advisors Holdings LP and Citadel GP LLC each report 5,675,095 shares (4.4%). Citadel Securities LLC reports 380,923 shares (0.3%) and Citadel Securities Group LP and Citadel Securities GP LLC each report 580,788 shares (0.5%). Mr. Kenneth Griffin is reported as beneficial owner of 6,255,883 shares (4.9%). The filing states 128,828,004 Shares outstanding as of March 30, 2026, which includes 1,500,000 shares issuable upon conversion of warrants.
Islet Management, LP and Joseph Samuels reported beneficial ownership of 7,500,000 Ordinary Shares of Vertical Aerospace Ltd., representing 7.33% of the class as of April 3, 2026. The filing states this percentage is calculated using 102,328,004 shares outstanding as of February 27, 2026, per the company's Annual Report on Form 20-F.
The Schedule 13G says Islet acts as investment manager to an account that holds the shares and that Mr. Samuels, as CEO and CIO of Islet, shares voting and dispositive power over those 7,500,000 shares. The filing is a passive beneficial-ownership disclosure under Schedule 13G.
Mudrick Capital and affiliated funds report a significant stake in Vertical Aerospace Ltd., holding 101,021,846 ordinary shares and equivalents, representing 58.4% of the class as of March 30, 2026. This total includes common shares, Convertible Senior Secured Notes and multiple warrant series.
Vertical Aerospace announced a $50 million capital raise through an at-the-market share issuance program on March 30, 2026, which reduced the Mudrick group’s beneficial ownership by more than 1%. On the same date, Mudrick Capital Management agreed in principle to extend existing 10.00% / 12.00% Convertible Senior Secured Notes from December 2028 to December 2030 and to provide a facility to purchase up to an additional $50 million of new convertible secured notes over 12 months, subject to definitive agreements and conditions.
Vertical Aerospace Ltd. director Domhnal Slattery received a grant of 360,155 Nil Cost Options over common stock as compensation. These options have a £0.00 exercise price and bring his total options to 1,739,434 following the grant.
The options begin vesting on March 31, 2026, with additional portions vesting quarterly under the applicable vesting schedule, subject to his continued service through each vesting date. The options are scheduled to expire on January 21, 2036 if not exercised.
Vertical Aerospace Ltd. Chief Executive Officer Stuart Simpson received a grant of 514,508 Nil Cost Options over the company’s common stock. These options carry a conversion price of $0.00 per share and have an expiration date of January 21, 2036.
The options begin vesting on March 31, 2026, with additional portions vesting quarterly thereafter under the applicable vesting schedule, subject to Simpson’s continued service through each vesting date. Following this award, he holds 2,484,906 derivative securities related to the company’s shares.
Vertical Aerospace Ltd. has raised $50 million by issuing registered ordinary shares under its at-the-market share issuance program with Jefferies. The company plans to use the equity proceeds to fund research and development of its Valo aircraft, expand testing, manufacturing and certification capacity, and for general corporate purposes.
Alongside this raise, Vertical announced an agreement in principle with Mudrick Capital and Yorkville on a comprehensive financing package totaling up to $850 million$160 million
Vertical Aerospace Ltd. entered into a non-binding agreement in principle for a comprehensive financing package involving convertible preferred shares to be issued to Yorkville. These preferred shares can be converted into ordinary shares at prices set at each tranche issuance and conversion date and initially carry no dividends. If specified trigger events occur and continue, the preferred shares will accrue payment-in-kind interest at an annualized rate of 18%. The company plans to use any proceeds from this potential financing to fund research and development, expand testing, manufacturing and certification capabilities for its aircraft, and for general working capital and corporate purposes. The arrangement remains subject to due diligence, negotiation and execution of definitive agreements, and there is no assurance the transaction will be completed.
Vertical Aerospace has entered a long-term partnership with Isoclima S.p.A. to design, develop, qualify and produce the full transparency suite for its Valo electric vertical take-off and landing (eVTOL) aircraft. Isoclima will supply certification-critical components such as pilot and passenger canopies and glazing systems.
The companies highlight that these transparencies must meet strict requirements for bird-strike resistance, structural integrity, optical performance and environmental durability, supporting Valo’s path through certification, production and entry into commercial service. This 6-K, excluding the press release, is also incorporated by reference into Vertical’s existing Form F-3 shelf registration statements.