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Brown William Matthew

Disclosed activity across 3 companies

Tapewire entity
87779
SEC CIK
0001556095

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Andretti Acquisition Corp. IIPOLE · Entity 5881CEO · 10% ownerSeptember 08, 2026September 09, 2026
Forterra, Inc.FRTA · Entity 128941EVP & Chief Financial OfficerAugust 14, 2017August 14, 2017

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 Sponsor II LLC, Andretti Mario, ANDRETTI MICHAEL, SANDBROOK WILLIAM J

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Class A Ordinary SharesSEC Table I · non-derivativeDirect5,749,999 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 securityDirect1 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.

Forterra, Inc.

Report date August 14, 2017 · Filed August 14, 2017

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect47,501 Reported balance After 2017-08-14 transaction · row 1
1 source row

Row 1 · 2017-08-14 · Purchase · Acquired 22,200 · Balance 47,501

F1: The reported transaction was executed in multiple trades at prices ranging from $4.779 to $4.81. The price reported in Column 4 reflects the weighted average purchase price, rounded to the nearest hundredth. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or any security holder of the Issuer full information regarding the number of shares acquired at each separate price within the range noted.

Filing footnotes · ownership attribution and instrument terms

F1: The reported transaction was executed in multiple trades at prices ranging from $4.779 to $4.81. The price reported in Column 4 reflects the weighted average purchase price, rounded to the nearest hundredth. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or any security holder of the Issuer full information regarding the number of shares acquired at each separate price within the range noted.

Past disclosures · reporting ended (1)

No longer tracked through insider filings. These historical balances do not imply present ownership or a zero position.

Zapata Quantum, Inc.

Report date July 18, 2024 · Filed July 22, 2024

Section 16 reporting ended · disclosed 2024-04-01. Current position is not established by this disclosure.

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect334,376 Reported balance After 2024-07-18 transaction · row 1
1 source row

Row 1 · 2024-07-18 · Other · Acquired 274,632 · Balance 334,376

F1: Pro rata distribution from Andretti Sponsor LLC, of which the reporting person is a member.

Warrant (right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $11.50 · Expires 2029-03-28Direct784,250 Reported balance After 2024-07-18 transaction · row 2 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 2 · 2024-07-18 · Other · Acquired 784,250 · Balance 784,250

F1: Pro rata distribution from Andretti Sponsor LLC, of which the reporting person is a member.

Filing footnotes · ownership attribution and instrument terms

F1: Pro rata distribution from Andretti Sponsor LLC, of which the reporting person is a member.

Transaction history

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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 dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
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
July 18, 2024 Filed Jul 22, 2024 18:05 UTC Zapata Quantum, Inc. ZPTA · Entity 6486 OtherWarrant (right to buy) · Derivative 784,250 $0.00 Strike: $11.50 $0.00
Disclosure

SEC source: 0001062993-24-014017 · form4.xml · derivative · entry 2

Brown William Matthew · CIK 0001556095 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 784,250

Underlying: Common Stock · 784,250 shares

Expires 2029-03-28

F1 · kind: Pro rata distribution from Andretti Sponsor LLC, of which the reporting person is a member.

Read SEC document
July 18, 2024 Filed Jul 22, 2024 18:05 UTC Zapata Quantum, Inc. ZPTA · Entity 6486 OtherCommon Stock 274,632 $0.00 $0.00
Disclosure

SEC source: 0001062993-24-014017 · form4.xml · nonDerivative · entry 1

Brown William Matthew · CIK 0001556095 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 334,376

F1 · kind: Pro rata distribution from Andretti Sponsor LLC, of which the reporting person is a member.

Read SEC document
July 10, 2024 Filed Jul 12, 2024 18:03 UTC Zapata Quantum, Inc. ZPTA · Entity 6486 GrantRestricted Stock Unitts · Derivative 75,000 $0.00 $0.00
Disclosure

SEC source: 0001062993-24-013685 · form4.xml · derivative · entry 2

Brown William Matthew · CIK 0001556095 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 75,000

Underlying: Common Stock · 75,000 shares

Expires not disclosed

F1 · derivative.exercise_price: Restricted stock units convert into shares of common stock on a one-for-one basis.

F2 · derivative.exercise_date: The restricted stock units will vest in three equal installments, with 25,000 shares of common stock vesting on October 10, 2024, 25,000 shares of common stock vesting on January 10, 2025, and 25,000 shares vesting on the date of the 2025 annual meeting of the Issuer's stockholders.

F2 · derivative.expiration_date: The restricted stock units will vest in three equal installments, with 25,000 shares of common stock vesting on October 10, 2024, 25,000 shares of common stock vesting on January 10, 2025, and 25,000 shares vesting on the date of the 2025 annual meeting of the Issuer's stockholders.

Read SEC document
July 10, 2024 Filed Jul 12, 2024 18:03 UTC Zapata Quantum, Inc. ZPTA · Entity 6486 GrantCommon Stock 25,000 $0.00 $0.00
Disclosure

SEC source: 0001062993-24-013685 · form4.xml · nonDerivative · entry 1

Brown William Matthew · CIK 0001556095 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 59,744

Read SEC document
March 28, 2024 Filed Apr 1, 2024 16:27 UTC Zapata Quantum, Inc. ZPTA · Entity 6486 OtherClass B Ordinary Shares · Derivative 4,189,077 Not disclosed Not disclosed
Disclosure

SEC source: 0000950142-24-000846 · es240464183_4-aspon.xml · derivative · entry 6

Andretti Sponsor LLC · CIK 0001843706 · Director · 10% owner · See Remarks

ANDRETTI MICHAEL · CIK 0001685577 · Director · 10% owner · See Remarks

SANDBROOK WILLIAM J · CIK 0001527678 · Director · 10% owner · See Remarks

Brown William Matthew · CIK 0001556095 · Director · 10% owner · See Remarks

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 4,189,077 shares

Expires not disclosed

F10 · derivative.exercise_price: The Issuer's Class B Ordinary Shares were convertible for the Issuer's shares of Class A ordinary shares, par value $0.0001 per share, as described under the heading "Description of Securities" in the Issuer's Registration Statement on Form S-1 (File No. 333-254627) (the "Registration Statement") and had no expiration date. As described above, the Issuer's Class B Ordinary Shares were automatically converted into shares of Common Stock on a one-for-one basis upon the Closing.

F1 · kind: Pursuant to the Business Combination Agreement, dated as of September 6, 2023, among the Issuer and certain other parties (the "Business Combination Agreement"), the Issuer's Class B ordinary shares, par value $0.0001 per share (the "Class B Ordinary Shares"), automatically converted into shares of the Issuer's common stock, par value $0.0001 per share ("common stock"), on a one-for-one basis upon the closing of the transactions contemplated by the Business Combination Agreement (the "Closing").

F1 · price: Pursuant to the Business Combination Agreement, dated as of September 6, 2023, among the Issuer and certain other parties (the "Business Combination Agreement"), the Issuer's Class B ordinary shares, par value $0.0001 per share (the "Class B Ordinary Shares"), automatically converted into shares of the Issuer's common stock, par value $0.0001 per share ("common stock"), on a one-for-one basis upon the closing of the transactions contemplated by the Business Combination Agreement (the "Closing").

F10 · derivative.exercise_date: The Issuer's Class B Ordinary Shares were convertible for the Issuer's shares of Class A ordinary shares, par value $0.0001 per share, as described under the heading "Description of Securities" in the Issuer's Registration Statement on Form S-1 (File No. 333-254627) (the "Registration Statement") and had no expiration date. As described above, the Issuer's Class B Ordinary Shares were automatically converted into shares of Common Stock on a one-for-one basis upon the Closing.

F10 · derivative.expiration_date: The Issuer's Class B Ordinary Shares were convertible for the Issuer's shares of Class A ordinary shares, par value $0.0001 per share, as described under the heading "Description of Securities" in the Issuer's Registration Statement on Form S-1 (File No. 333-254627) (the "Registration Statement") and had no expiration date. As described above, the Issuer's Class B Ordinary Shares were automatically converted into shares of Common Stock on a one-for-one basis upon the Closing.

F2 · ownership.direct: Andretti Sponsor LLC (the "Sponsor") is the record holder of such shares of common stock. Mr. Andretti, Mr. Sandbrook and Mr. Brown are members of the Sponsor and (together with other members of the Sponsor) share voting and investment discretion with respect to the shares of common stock held of record by the Sponsor. In addition, each of Mr. Andretti, Mr. Sandbrook and Mr. Brown may be entitled to distributions of common stock and private placement warrants from the Sponsor following the consummation of the initial business combination. Each of Mr. Andretti, Mr. Sandbrook and Mr. Brown disclaims any beneficial ownership of the securities held by the Sponsor, other than to the extent of any pecuniary interest he may have therein, directly or indirectly.

Read SEC document
March 28, 2024 Filed Apr 1, 2024 16:27 UTC Zapata Quantum, Inc. ZPTA · Entity 6486 OtherCommon Stock 370,923 Not disclosed Not disclosed
Disclosure

SEC source: 0000950142-24-000846 · es240464183_4-aspon.xml · nonDerivative · entry 5

Andretti Sponsor LLC · CIK 0001843706 · Director · 10% owner · See Remarks

ANDRETTI MICHAEL · CIK 0001685577 · Director · 10% owner · See Remarks

SANDBROOK WILLIAM J · CIK 0001527678 · Director · 10% owner · See Remarks

Brown William Matthew · CIK 0001556095 · Director · 10% owner · See Remarks

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 370,923

F8 · kind: Received in connection with Merger with Private Zapata. In accordance with a Note Exchange Agreement, dated March 28, 2024, by and among Mr. Andretti, the Issuer and Private Zapata, at the effective time of the Merger, Mr. Andretti exchanged an outstanding Senior Secured Promissory Note between Mr. Andretti and Private Zapata, with an aggregate principal amount, together with then-outstanding interest, of $1,601,369.86, for 370,923 shares of Common Stock, at a conversion price of $4.50 per share.

F8 · price: Received in connection with Merger with Private Zapata. In accordance with a Note Exchange Agreement, dated March 28, 2024, by and among Mr. Andretti, the Issuer and Private Zapata, at the effective time of the Merger, Mr. Andretti exchanged an outstanding Senior Secured Promissory Note between Mr. Andretti and Private Zapata, with an aggregate principal amount, together with then-outstanding interest, of $1,601,369.86, for 370,923 shares of Common Stock, at a conversion price of $4.50 per share.

F9 · ownership.direct: Mr. Andretti is the record holder of such shares of common stock.

Read SEC document
March 28, 2024 Filed Apr 1, 2024 16:27 UTC Zapata Quantum, Inc. ZPTA · Entity 6486 OtherCommon Stock 243,368 Not disclosed Not disclosed
Disclosure

SEC source: 0000950142-24-000846 · es240464183_4-aspon.xml · nonDerivative · entry 4

Andretti Sponsor LLC · CIK 0001843706 · Director · 10% owner · See Remarks

ANDRETTI MICHAEL · CIK 0001685577 · Director · 10% owner · See Remarks

SANDBROOK WILLIAM J · CIK 0001527678 · Director · 10% owner · See Remarks

Brown William Matthew · CIK 0001556095 · Director · 10% owner · See Remarks

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 243,368

F6 · kind: Received in connection with the Merger with Private Zapata. In accordance with a Note Exchange Agreement, dated March 28, 2024, by and among Mr. Sandbrook, the Issuer and Private Zapata, at the effective time of the Merger, Mr. Sandbrook exchanged an outstanding Senior Secured Promissory Note between Mr. Sandbrook and Private Zapata, with an aggregate principal amount, together with then-outstanding interest, of $1,050,684.93, for 243,368 shares of Common Stock, at a conversion price of $4.50 per share.

F6 · price: Received in connection with the Merger with Private Zapata. In accordance with a Note Exchange Agreement, dated March 28, 2024, by and among Mr. Sandbrook, the Issuer and Private Zapata, at the effective time of the Merger, Mr. Sandbrook exchanged an outstanding Senior Secured Promissory Note between Mr. Sandbrook and Private Zapata, with an aggregate principal amount, together with then-outstanding interest, of $1,050,684.93, for 243,368 shares of Common Stock, at a conversion price of $4.50 per share.

F7 · ownership.direct: Mr. Sandbrook is the record holder of such shares of common stock.

Read SEC document
March 28, 2024 Filed Apr 1, 2024 16:27 UTC Zapata Quantum, Inc. ZPTA · Entity 6486 GrantCommon Stock 34,744 Not disclosed Not disclosed
Disclosure

SEC source: 0000950142-24-000846 · es240464183_4-aspon.xml · nonDerivative · entry 3

Andretti Sponsor LLC · CIK 0001843706 · Director · 10% owner · See Remarks

ANDRETTI MICHAEL · CIK 0001685577 · Director · 10% owner · See Remarks

SANDBROOK WILLIAM J · CIK 0001527678 · Director · 10% owner · See Remarks

Brown William Matthew · CIK 0001556095 · Director · 10% owner · See Remarks

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,744

F4 · kind: Received in connection with the Issuer's business combination (the "Merger") with Zapata Computing, Inc. ("Private Zapata"). In accordance with a Note Exchange Agreement, dated March 28, 2024, by and among Mr. Brown, the Issuer and Private Zapata, at the effective time of the Merger, Mr. Brown exchanged an outstanding Senior Secured Promissory Note between Mr. Brown and Private Zapata, with an aggregate principal amount, together with then-outstanding interest, of $150,000, for 34,744 shares of Common Stock, at a conversion price of $4.50 per share.

F4 · price: Received in connection with the Issuer's business combination (the "Merger") with Zapata Computing, Inc. ("Private Zapata"). In accordance with a Note Exchange Agreement, dated March 28, 2024, by and among Mr. Brown, the Issuer and Private Zapata, at the effective time of the Merger, Mr. Brown exchanged an outstanding Senior Secured Promissory Note between Mr. Brown and Private Zapata, with an aggregate principal amount, together with then-outstanding interest, of $150,000, for 34,744 shares of Common Stock, at a conversion price of $4.50 per share.

F5 · ownership.direct: Mr. Brown is the record holder of such shares of common stock.

Read SEC document
March 28, 2024 Filed Apr 1, 2024 16:27 UTC Zapata Quantum, Inc. ZPTA · Entity 6486 OtherCommon Stock 652,214 Not disclosed Not disclosed
Disclosure

SEC source: 0000950142-24-000846 · es240464183_4-aspon.xml · nonDerivative · entry 2

Andretti Sponsor LLC · CIK 0001843706 · Director · 10% owner · See Remarks

ANDRETTI MICHAEL · CIK 0001685577 · Director · 10% owner · See Remarks

SANDBROOK WILLIAM J · CIK 0001527678 · Director · 10% owner · See Remarks

Brown William Matthew · CIK 0001556095 · Director · 10% owner · See Remarks

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,536,863

F3 · kind: Pursuant to certain Non-Redemption Agreements among the Sponsor and certain other parties, upon the Closing the Sponsor transferred an aggregate of 652,214 shares of common stock to such other parties.

F3 · price: Pursuant to certain Non-Redemption Agreements among the Sponsor and certain other parties, upon the Closing the Sponsor transferred an aggregate of 652,214 shares of common stock to such other parties.

F2 · ownership.direct: Andretti Sponsor LLC (the "Sponsor") is the record holder of such shares of common stock. Mr. Andretti, Mr. Sandbrook and Mr. Brown are members of the Sponsor and (together with other members of the Sponsor) share voting and investment discretion with respect to the shares of common stock held of record by the Sponsor. In addition, each of Mr. Andretti, Mr. Sandbrook and Mr. Brown may be entitled to distributions of common stock and private placement warrants from the Sponsor following the consummation of the initial business combination. Each of Mr. Andretti, Mr. Sandbrook and Mr. Brown disclaims any beneficial ownership of the securities held by the Sponsor, other than to the extent of any pecuniary interest he may have therein, directly or indirectly.

Read SEC document
March 28, 2024 Filed Apr 1, 2024 16:27 UTC Zapata Quantum, Inc. ZPTA · Entity 6486 OtherCommon Stock 4,189,077 Not disclosed Not disclosed
Disclosure

SEC source: 0000950142-24-000846 · es240464183_4-aspon.xml · nonDerivative · entry 1

Andretti Sponsor LLC · CIK 0001843706 · Director · 10% owner · See Remarks

ANDRETTI MICHAEL · CIK 0001685577 · Director · 10% owner · See Remarks

SANDBROOK WILLIAM J · CIK 0001527678 · Director · 10% owner · See Remarks

Brown William Matthew · CIK 0001556095 · Director · 10% owner · See Remarks

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,189,077

F1 · kind: Pursuant to the Business Combination Agreement, dated as of September 6, 2023, among the Issuer and certain other parties (the "Business Combination Agreement"), the Issuer's Class B ordinary shares, par value $0.0001 per share (the "Class B Ordinary Shares"), automatically converted into shares of the Issuer's common stock, par value $0.0001 per share ("common stock"), on a one-for-one basis upon the closing of the transactions contemplated by the Business Combination Agreement (the "Closing").

F1 · price: Pursuant to the Business Combination Agreement, dated as of September 6, 2023, among the Issuer and certain other parties (the "Business Combination Agreement"), the Issuer's Class B ordinary shares, par value $0.0001 per share (the "Class B Ordinary Shares"), automatically converted into shares of the Issuer's common stock, par value $0.0001 per share ("common stock"), on a one-for-one basis upon the closing of the transactions contemplated by the Business Combination Agreement (the "Closing").

F2 · ownership.direct: Andretti Sponsor LLC (the "Sponsor") is the record holder of such shares of common stock. Mr. Andretti, Mr. Sandbrook and Mr. Brown are members of the Sponsor and (together with other members of the Sponsor) share voting and investment discretion with respect to the shares of common stock held of record by the Sponsor. In addition, each of Mr. Andretti, Mr. Sandbrook and Mr. Brown may be entitled to distributions of common stock and private placement warrants from the Sponsor following the consummation of the initial business combination. Each of Mr. Andretti, Mr. Sandbrook and Mr. Brown disclaims any beneficial ownership of the securities held by the Sponsor, other than to the extent of any pecuniary interest he may have therein, directly or indirectly.

Read SEC document
January 18, 2022 Filed Jan 20, 2022 17:05 UTC Zapata Quantum, Inc. WNNR · Entity 6486 OtherClass B Ordinary Shares · Derivative 1,430,923 $0.00 $0.00
Disclosure

SEC source: 0000950142-22-000390 · es220218995_4-sponsor.xml · derivative · entry 1

Andretti Sponsor LLC · CIK 0001843706 · Director · See Remarks · 10% owner

ANDRETTI MICHAEL · CIK 0001685577 · Director · See Remarks

SANDBROOK WILLIAM J · CIK 0001527678 · Director · See Remarks

Brown William Matthew · CIK 0001556095 · See Remarks

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,189,077

Underlying: Class A Ordinary Shares · 1,430,923 shares

Expires not disclosed

F1 · derivative.exercise_price: The reported shares of Andretti Acquisition Corp. (the "Issuer") are directly held by Andretti Sponsor LLC (the "Sponsor"). The Issuer's shares of Class B ordinary shares, par value $0.0001 per share (the "Class B Ordinary Shares"), are convertible for the Issuer's shares of Class A ordinary shares, par value $0.0001 per share, as described under the heading "Description of Securities" in the Issuer's Registration Statement on Form S-1 (File No. 333-254627) (the "Registration Statement") and have no expiration date.

F2 · kind: Immediately prior to the closing of the Issuer's initial public offering, the Sponsor forfeited to the Issuer 1,430,923 Class B Ordinary Shares.

F1 · derivative.exercise_date: The reported shares of Andretti Acquisition Corp. (the "Issuer") are directly held by Andretti Sponsor LLC (the "Sponsor"). The Issuer's shares of Class B ordinary shares, par value $0.0001 per share (the "Class B Ordinary Shares"), are convertible for the Issuer's shares of Class A ordinary shares, par value $0.0001 per share, as described under the heading "Description of Securities" in the Issuer's Registration Statement on Form S-1 (File No. 333-254627) (the "Registration Statement") and have no expiration date.

F1 · derivative.expiration_date: The reported shares of Andretti Acquisition Corp. (the "Issuer") are directly held by Andretti Sponsor LLC (the "Sponsor"). The Issuer's shares of Class B ordinary shares, par value $0.0001 per share (the "Class B Ordinary Shares"), are convertible for the Issuer's shares of Class A ordinary shares, par value $0.0001 per share, as described under the heading "Description of Securities" in the Issuer's Registration Statement on Form S-1 (File No. 333-254627) (the "Registration Statement") and have no expiration date.

F3 · ownership.direct: The Sponsor is the record holder of such shares of Class B common stock. Mr. Andretti, Mr. Sandbrook and Mr. Brown are members of the Sponsor and (together with other members of the Sponsor) share voting and investment discretion with respect to the shares of Class B Ordinary Shares held of record by the Sponsor. In addition, each of Mr. Andretti, Mr. Sandbrook and Mr. Brown may be entitled to distributions of Class B common stock and private placement warrants from the Sponsor following the consummation of the initial business combination. Each of Mr. Andretti, Mr. Sandbrook and Mr. Brown disclaims any beneficial ownership of the securities held by the Sponsor, other than to the extent of any pecuniary interest he may have therein, directly or indirectly.

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August 14, 2017 Filed Aug 14, 2017 20:52 UTC Forterra, Inc. FRTA · Entity 128941 PurchaseCommon Stock 22,200 $4.80 $106,560.00
Disclosure

SEC source: 0001678463-17-000065 · wf-form4_150275835958375.xml · nonDerivative · entry 1

Brown William Matthew · CIK 0001556095 · EVP & Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,501

F1 · price: The reported transaction was executed in multiple trades at prices ranging from $4.779 to $4.81. The price reported in Column 4 reflects the weighted average purchase price, rounded to the nearest hundredth. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or any security holder of the Issuer full information regarding the number of shares acquired at each separate price within the range noted.

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March 20, 2017 Filed Mar 22, 2017 19:13 UTC Forterra, Inc. FRTA · Entity 128941 GrantStock Option (Right to Buy) · Derivative 31,035 $0.00 Strike: $18.96 $0.00
Disclosure

SEC source: 0001678463-17-000019 · wf-form4_149022441914675.xml · derivative · entry 2

Brown William Matthew · CIK 0001556095 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,035

Underlying: Common Stock · 31,035 shares

Expires 2027-03-20

F1 · price: Granted as compensation for services.

F2 · derivative.exercise_date: Stock Option vests in three equal installments on the first, second and third anniversaries of the grant date.

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March 20, 2017 Filed Mar 22, 2017 19:13 UTC Forterra, Inc. FRTA · Entity 128941 GrantCommon Stock 17,801 $0.00 $0.00
Disclosure

SEC source: 0001678463-17-000019 · wf-form4_149022441914675.xml · nonDerivative · entry 1

Brown William Matthew · CIK 0001556095 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,301

F1 · price: Granted as compensation for services.

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October 19, 2016 Filed Oct 20, 2016 16:57 UTC Forterra, Inc. FRTA · Entity 128941 GrantStock Option (Right to Buy) · Derivative 28,130 $0.00 Strike: $18.00 $0.00
Disclosure

SEC source: 0000899243-16-032044 · doc4.xml · derivative · entry 2

Brown William Matthew · CIK 0001556095 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,130

Underlying: Common Stock · 28,130 shares

Expires 2026-10-19

F1 · price: Granted as compensation for services.

F2 · derivative.exercise_date: Stock Option vests in four equal installments on the first, second, third, and fourth anniversaries of the grant date.

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October 19, 2016 Filed Oct 20, 2016 16:57 UTC Forterra, Inc. FRTA · Entity 128941 GrantCommon Stock 7,500 $0.00 $0.00
Disclosure

SEC source: 0000899243-16-032044 · doc4.xml · nonDerivative · entry 1

Brown William Matthew · CIK 0001556095 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,500

F1 · price: Granted as compensation for services.

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