organization · Reporting owner

Andretti Sponsor II LLC

Disclosed activity across 1 company

Tapewire entity: 87776
SEC CIK: 0002032960

Reported relationships

Latest disclosed role at each company.

Company	Last reported as	Report date	Published
Andretti Acquisition Corp. IIPOLE · Entity 5881	10% owner	September 08, 2026	September 09, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

Andretti Acquisition Corp. II

Report date September 08, 2026 · Filed September 09, 2026

Jointly reported with Andretti Mario, ANDRETTI MICHAEL, SANDBROOK WILLIAM J, Brown William Matthew

Security / award	Ownership account	Disclosed shares / units	Disclosure context
Class A Ordinary SharesSEC Table I · non-derivative	Direct	5,749,999	Reported balance After 2026-09-08 transaction · row 1 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 1 · 2026-09-08 · Conversion · Acquired 5,749,999 · Balance 5,749,999 F1: The Class B ordinary shares are convertible, at the option of the holder, into Class A ordinary shares on a one-for-one basis, for no additional consideration, and have no expiration date. On September 8, 2026, the reporting persons elected to convert 5,749,999 Class B ordinary shares of Andretti Sponsor II LLC (the "Sponsor") into 5,749,999 Class A ordinary shares held by Andretti Acquisition Corp. II. F2: Mario Andretti, Michael M. Andretti, William J. Sandbrook and William M. Brown are the managing members of the Sponsor and have voting and investment discretion with respect to the securities held of record by the Sponsor. As such, Mario Andretti, Michael M. Andretti, William J. Sandbrook and William M. Brown may be deemed to have beneficial ownership of the securities held of record by the Sponsor. Mario Andretti, Michael M. Andretti, William J. Sandbrook and William M. Brown disclaim any beneficial ownership except to the extent of their respective pecuniary interests therein.
Class B Ordinary SharesSEC Table II · derivative / convertible security	Direct	1	Reported balance After 2026-09-08 transaction · row 2 Instrument identity requires review; Table II rows are not merged. 1 source row Row 2 · 2026-09-08 · Conversion · Disposed 5,749,999 · Balance 1 F1: The Class B ordinary shares are convertible, at the option of the holder, into Class A ordinary shares on a one-for-one basis, for no additional consideration, and have no expiration date. On September 8, 2026, the reporting persons elected to convert 5,749,999 Class B ordinary shares of Andretti Sponsor II LLC (the "Sponsor") into 5,749,999 Class A ordinary shares held by Andretti Acquisition Corp. II. F2: Mario Andretti, Michael M. Andretti, William J. Sandbrook and William M. Brown are the managing members of the Sponsor and have voting and investment discretion with respect to the securities held of record by the Sponsor. As such, Mario Andretti, Michael M. Andretti, William J. Sandbrook and William M. Brown may be deemed to have beneficial ownership of the securities held of record by the Sponsor. Mario Andretti, Michael M. Andretti, William J. Sandbrook and William M. Brown disclaim any beneficial ownership except to the extent of their respective pecuniary interests therein.

Filing footnotes · ownership attribution and instrument terms

F1: The Class B ordinary shares are convertible, at the option of the holder, into Class A ordinary shares on a one-for-one basis, for no additional consideration, and have no expiration date. On September 8, 2026, the reporting persons elected to convert 5,749,999 Class B ordinary shares of Andretti Sponsor II LLC (the "Sponsor") into 5,749,999 Class A ordinary shares held by Andretti Acquisition Corp. II.

F2: Mario Andretti, Michael M. Andretti, William J. Sandbrook and William M. Brown are the managing members of the Sponsor and have voting and investment discretion with respect to the securities held of record by the Sponsor. As such, Mario Andretti, Michael M. Andretti, William J. Sandbrook and William M. Brown may be deemed to have beneficial ownership of the securities held of record by the Sponsor. Mario Andretti, Michael M. Andretti, William J. Sandbrook and William M. Brown disclaim any beneficial ownership except to the extent of their respective pecuniary interests therein.

Transaction history

JSON API

Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction date	Company	Activity / security	Shares / units	Reported price	Reported value	Details
September 08, 2026 Filed Sep 9, 2026 20:30 UTC	Andretti Acquisition Corp. II POLE · Entity 5881	ConversionClass B Ordinary Shares · Derivative	5,749,999	$0.00	$0.00	Disclosure SEC source: 0001213900-26-098411 · ownership.xml · derivative · entry 2 Andretti Sponsor II LLC · CIK 0002032960 · 10% owner Andretti Mario · CIK 0002031378 · 10% owner ANDRETTI MICHAEL · CIK 0001685577 · Director · 10% owner SANDBROOK WILLIAM J · CIK 0001527678 · Director · Executive Chairman · 10% owner Brown William Matthew · CIK 0001556095 · CEO · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 1 Underlying: Class A Ordinary Shares · 5,749,999 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: The Class B ordinary shares are convertible, at the option of the holder, into Class A ordinary shares on a one-for-one basis, for no additional consideration, and have no expiration date. On September 8, 2026, the reporting persons elected to convert 5,749,999 Class B ordinary shares of Andretti Sponsor II LLC (the "Sponsor") into 5,749,999 Class A ordinary shares held by Andretti Acquisition Corp. II. F1 · derivative.exercise_date: The Class B ordinary shares are convertible, at the option of the holder, into Class A ordinary shares on a one-for-one basis, for no additional consideration, and have no expiration date. On September 8, 2026, the reporting persons elected to convert 5,749,999 Class B ordinary shares of Andretti Sponsor II LLC (the "Sponsor") into 5,749,999 Class A ordinary shares held by Andretti Acquisition Corp. II. F1 · derivative.expiration_date: The Class B ordinary shares are convertible, at the option of the holder, into Class A ordinary shares on a one-for-one basis, for no additional consideration, and have no expiration date. On September 8, 2026, the reporting persons elected to convert 5,749,999 Class B ordinary shares of Andretti Sponsor II LLC (the "Sponsor") into 5,749,999 Class A ordinary shares held by Andretti Acquisition Corp. II. F2 · ownership.direct: Mario Andretti, Michael M. Andretti, William J. Sandbrook and William M. Brown are the managing members of the Sponsor and have voting and investment discretion with respect to the securities held of record by the Sponsor. As such, Mario Andretti, Michael M. Andretti, William J. Sandbrook and William M. Brown may be deemed to have beneficial ownership of the securities held of record by the Sponsor. Mario Andretti, Michael M. Andretti, William J. Sandbrook and William M. Brown disclaim any beneficial ownership except to the extent of their respective pecuniary interests therein. Read SEC document
September 08, 2026 Filed Sep 9, 2026 20:30 UTC	Andretti Acquisition Corp. II POLE · Entity 5881	ConversionClass A Ordinary Shares	5,749,999	Not disclosed	Not disclosed	Disclosure SEC source: 0001213900-26-098411 · ownership.xml · nonDerivative · entry 1 Andretti Sponsor II LLC · CIK 0002032960 · 10% owner Andretti Mario · CIK 0002031378 · 10% owner ANDRETTI MICHAEL · CIK 0001685577 · Director · 10% owner SANDBROOK WILLIAM J · CIK 0001527678 · Director · Executive Chairman · 10% owner Brown William Matthew · CIK 0001556095 · CEO · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 5,749,999 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: The Class B ordinary shares are convertible, at the option of the holder, into Class A ordinary shares on a one-for-one basis, for no additional consideration, and have no expiration date. On September 8, 2026, the reporting persons elected to convert 5,749,999 Class B ordinary shares of Andretti Sponsor II LLC (the "Sponsor") into 5,749,999 Class A ordinary shares held by Andretti Acquisition Corp. II. F2 · ownership.direct: Mario Andretti, Michael M. Andretti, William J. Sandbrook and William M. Brown are the managing members of the Sponsor and have voting and investment discretion with respect to the securities held of record by the Sponsor. As such, Mario Andretti, Michael M. Andretti, William J. Sandbrook and William M. Brown may be deemed to have beneficial ownership of the securities held of record by the Sponsor. Mario Andretti, Michael M. Andretti, William J. Sandbrook and William M. Brown disclaim any beneficial ownership except to the extent of their respective pecuniary interests therein. Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.