ASTS

SEC source: 0001493152-26-013025 · ownership.xml · nonDerivative · entry 1

Wisniewski Scott · CIK 0002028702 · President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 787,118

F1 · shares: Represents achievement of certain performance-based stock unit awards ("PSUs") granted on December 2, 2025, following certification by the Issuer's compensation committee that the applicable individual performance conditions had been satisfied. One third of the PSUs representing 41,146 shares of Class A Common Stock will vest on March 31, 2026 and the remaining PSUs will vest equally on March 31, 2027 and March 31, 2028, subject to the Reporting Person's continued service through the vesting dates. Each PSU represents a contingent right to receive one share of the Issuer's Class A Common Stock.

SEC source: 0001493152-26-013026 · ownership.xml · nonDerivative · entry 1

Johnson Andrew Martin · CIK 0001548887 · Director · CFO and CLO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 612,485

F1 · shares: Represents achievement of certain performance-based stock unit awards ("PSUs") granted on December 2, 2025, following certification by the Issuer's compensation committee that the applicable individual performance conditions had been satisfied. One third of the PSUs representing 33,334 shares of Class A Common Stock will vest on March 31, 2026 and the remaining PSUs will vest equally on March 31, 2027 and March 31, 2028, subject to the Reporting Person's continued service through the vesting dates. Each PSU represents a contingent right to receive one share of the Issuer's Class A Common Stock.

SEC source: 0001493152-26-013024 · ownership.xml · nonDerivative · entry 2

Avellan Abel Antonio · CIK 0001680225 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 78,597,453

F1 · shares: Represents achievement of certain performance-based stock unit awards ("PSUs") granted on December 2, 2025, following certification by the Issuer's compensation committee that the applicable individual performance conditions had been satisfied. One third of the PSUs representing 61,459 shares of Class A Common Stock will vest on March 31, 2026 and the remaining PSUs will vest equally on March 31, 2027 and March 31, 2028, subject to the Reporting Person's continued service through the vesting dates. Each PSU represents a contingent right to receive one share of the Issuer's Class A Common Stock.

SEC source: 0001493152-26-013023 · ownership.xml · nonDerivative · entry 1

Gupta Shanti B. · CIK 0001884187 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 387,062

F1 · shares: Represents achievement of certain performance-based stock unit awards ("PSUs") granted on December 2, 2025, following certification by the Issuer's compensation committee that the applicable individual performance conditions had been satisfied. One third of the PSUs representing 18,229 shares of Class A Common Stock will vest on March 31, 2026 and the remaining PSUs will vest equally on March 31, 2027 and March 31, 2028, subject to the Reporting Person's continued service through the vesting dates. Each PSU represents a contingent right to receive one share of the Issuer's Class A Common Stock.

SEC source: 0001493152-26-012442 · ownership.xml · nonDerivative · entry 1

Yao Huiwen · CIK 0002027976 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,750

F1 · shares: The reported transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 12, 2025.

F2 · price: Represents the weighted average selling price. These shares were sold in multiple transactions at prices ranging from $86.71 per share to $90.70 per share, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001493152-26-012441 · ownership.xml · nonDerivative · entry 1

Bernal Maya · CIK 0002027960 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 117,989

F1 · shares: Represents a payment of tax liability by withholding securities incident to the vesting of Restricted Stock Units representing 3,664 shares of Class A Common Stock issued in accordance with Rule 16b-3, resulting in a net vested number of 8,836 shares.

SEC source: 0001493152-26-009925 · ownership.xml · derivative · entry 2

Yao Huiwen · CIK 0002027976 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 299,912

Underlying: Class A Common Stock · 40,000 shares

Expires 2029-04-17

F2 · derivative.exercise_date: Six months after vesting, each AST LLC Incentive Equity Option is exercisable for an AST LLC Incentive Equity Unit, each of which is then exchangeable for an AST LLC Common Unit that is redeemable for one share of Class A Common Stock. The AST LLC Incentive Equity Options expire no later than 10 years from the date of grant.

F2 · derivative.expiration_date: Six months after vesting, each AST LLC Incentive Equity Option is exercisable for an AST LLC Incentive Equity Unit, each of which is then exchangeable for an AST LLC Common Unit that is redeemable for one share of Class A Common Stock. The AST LLC Incentive Equity Options expire no later than 10 years from the date of grant.

F2 · ownership.nature: Six months after vesting, each AST LLC Incentive Equity Option is exercisable for an AST LLC Incentive Equity Unit, each of which is then exchangeable for an AST LLC Common Unit that is redeemable for one share of Class A Common Stock. The AST LLC Incentive Equity Options expire no later than 10 years from the date of grant.

SEC source: 0001493152-26-009925 · ownership.xml · nonDerivative · entry 1

Yao Huiwen · CIK 0002027976 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 44,750

F1 · shares: Represents shares of Class A Common Stock obtained from exercise of AST LLC Incentive Equity Options.

SEC source: 0001493152-26-007213 · ownership.xml · nonDerivative · entry 1

Bernal Maya · CIK 0002027960 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 121,653

F1 · shares: Represents a payment of tax liability by withholding securities incident to the vesting of Restricted Stock Units representing 3,000 shares of Class A Common Stock issued in accordance with Rule 16b-3, resulting in a net vested number of 2,167 shares.

SEC source: 0001493152-25-029456 · ownership.xml · nonDerivative · entry 1

LARSON KEITH R · CIK 0001401658 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · By IRA

Disclosed balance after: 2,015

F1 · shares: The reported transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 8, 2025.

SEC source: 0001493152-25-028216 · ownership.xml · nonDerivative · entry 1

LARSON KEITH R · CIK 0001401658 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · By IRA

Disclosed balance after: 1,390

F1 · shares: The reported transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 8, 2025.

SEC source: 0001493152-25-027104 · ownership.xml · nonDerivative · entry 1

LARSON KEITH R · CIK 0001401658 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · by IRA

Disclosed balance after: 675

F1 · shares: The reported transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 8, 2025.

F2 · price: Represents the weighted average selling price. These shares were purchased in multiple transactions at prices ranging from $71.54 per share to $72.85 per share, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote.

SEC source: 0001493152-25-027599 · ownership.xml · nonDerivative · entry 1

Gupta Shanti B. · CIK 0001884187 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 382,375

SEC source: 0001193125-25-315966 · ownership.xml · nonDerivative · entry 1

AMERICAN TOWER CORP /MA/ · CIK 0001053507 · Member of 10% owner group

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 211,379

F1 · shares: Represents shares of Class A Common Stock ("Class A Shares") of AST SpaceMobile, Inc. (the "Issuer") held by ATC TRS II LLC ("TRS II"), a wholly owned subsidiary of American Tower Corporation (together with TRS II, the "Reporting Persons"), sold pursuant to a block trade with Barclays Capital Inc.

SEC source: 0001493152-25-026707 · ownership.xml · nonDerivative · entry 1

Bernal Maya · CIK 0002027960 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 122,486

SEC source: 0001493152-25-026708 · ownership.xml · nonDerivative · entry 1

Yao Huiwen · CIK 0002027976 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,750

F1 · shares: The reported transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 12, 2025.

F2 · price: Represents the weighted average selling price. These shares were sold in multiple transactions at prices ranging from $70.74 per share to $74.94 per share, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001493152-25-026053 · ownership.xml · nonDerivative · entry 1

Wisniewski Scott · CIK 0002028702 · President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 713,681

F1 · shares: Represents a grant of restricted stock units ("RSUs") that vest 33% per year on each of the first, second, and third anniversary of May 30, 2025, subject to the Reporting Person's continued service through the vesting date. Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock.

SEC source: 0001493152-25-026050 · ownership.xml · nonDerivative · entry 1

Johnson Andrew Martin · CIK 0001548887 · CFO and CLO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 512,485

F1 · shares: Represents a grant of restricted stock units ("RSUs") that vest 33% per year on each of the first, second, and third anniversary of May 30, 2025, subject to the Reporting Person's continued service through the vesting date. Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock.

SEC source: 0001493152-25-026052 · ownership.xml · nonDerivative · entry 2

Avellan Abel Antonio · CIK 0001680225 · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 78,413,078

F1 · shares: Represents a grant of restricted stock units ("RSUs") that will vest one third on the first, second and third anniversary of May 30, 2025, subject to the Reporting Person's continued service through the vesting date. Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock.

SEC source: 0001493152-25-026051 · ownership.xml · nonDerivative · entry 1

Gupta Shanti B. · CIK 0001884187 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 392,375

F1 · shares: Represents a grant of restricted stock units ("RSUs") that vest 33% per year on each of the first, second, and third anniversary of May 30, 2025, subject to the Reporting Person's continued service through the vesting date. Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock.

SEC source: 0001493152-25-025390 · ownership.xml · nonDerivative · entry 1

Johnson Andrew Martin · CIK 0001548887 · CFO and CLO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 387,485

SEC source: 0001104659-25-115321 · tm2532056-1_4seq1.xml · nonDerivative · entry 2

Cisneros Adriana · CIK 0001749229 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Entity

Disclosed balance after: 784,077

F1 · ownership.nature: Reflects shares held by trusts for the benefit of the reporting person's children, in which the reporting person disclaims pecuniary interest. The reporting person is not the trustee of these trusts.

SEC source: 0001104659-25-115321 · tm2532056-1_4seq1.xml · nonDerivative · entry 1

Cisneros Adriana · CIK 0001749229 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Entity

Disclosed balance after: 783,702

F1 · ownership.nature: Reflects shares held by trusts for the benefit of the reporting person's children, in which the reporting person disclaims pecuniary interest. The reporting person is not the trustee of these trusts.

SEC source: 0001493152-25-024722 · ownership.xml · derivative · entry 1

Avellan Abel Antonio · CIK 0001680225 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 2,500,000

Underlying: Class A Common Stock · 2,500,000 shares

Expires not disclosed

F1 · derivative.exercise_price: On November 19, 2025, AA Gables, LLC ("AA Gables") entered into an amendment (the "Amendment") to the previously disclosed variable prepaid forward transaction (the "Forward Contract") entered into on November 20, 2024 with an unaffiliated dealer covering up to a maximum of 2,500,000 shares of the Issuer's Class A Common Stock (the "Subject Shares") in order to amend the settlement dates, Floor Price (as defined below) and Cap Price (as defined below) of the Forward Contract. Pursuant to the Amendment, AA Gables will be obligated to deliver to the dealer up to the Subject Shares (or at AA Gable's election, an equivalent amount of cash) on specified dates in March of 2027. The transaction is divided into four components, each comprising up to 625,000 shares of Class A Common Stock (the "Component Shares").

F2 · derivative.exercise_price: (Continued from Footnote 1) The number of Component Shares (or the equivalent amount of cash if AA Gables elects cash settlement), to be delivered to the dealer on the related settlement date will be based on the volume-weighted average price per share of Class A Common Stock on the related valuation date (the "Settlement Price").

F3 · derivative.exercise_price: The number of shares of Class A Common Stock (or, in each case, the equivalent amount of cash if AA Gables elects cash settlement), to be delivered to the dealer at settlement, as amended pursuant to the Amendment, will be determined as follows: (A) if the Settlement Price is less than or equal to $56.0564 (the "Floor Price"), AA Gables will deliver the Component Shares; (B) if the Settlement Price is less than or equal to $79.6590 (the "Cap Price"), but greater than the Floor Price, AA Gables will deliver a number of shares of Class A Common Stock equal to (i) the Component Shares, multiplied by a fraction, the numerator of which is the Floor Price and the denominator of which is the Settlement Price; and

F4 · derivative.exercise_price: (Continued from Footnote 3) (C) if the Settlement Price is greater than the Cap Price, AA Gables will deliver a number of shares of Class A Common Stock equal to (i) the Component Shares, multiplied by (ii) a fraction, the numerator of which is the sum of (x) the Floor Price and (y) the Settlement Price minus the Cap Price, and the denominator of which is the Settlement Price.

F5 · derivative.exercise_price: In connection with the Amendment, AA Gables received an aggregate cash payment of approximately $10.7 million, reflecting the economic effect of the Amendment to Forward Contract, and which is in addition to the $42.0 million aggregate upfront proceeds AA Gables received when the Forward Contract was originally entered into. AA Gables has pledged 2,500,000 common units of AST & Science, LLC (the "Pledged Securities") to secure its obligations under the Forward Contract. AA Gables will continue to retain voting rights in the Pledged Securities during the term of the Forward Contract.

F1 · price: On November 19, 2025, AA Gables, LLC ("AA Gables") entered into an amendment (the "Amendment") to the previously disclosed variable prepaid forward transaction (the "Forward Contract") entered into on November 20, 2024 with an unaffiliated dealer covering up to a maximum of 2,500,000 shares of the Issuer's Class A Common Stock (the "Subject Shares") in order to amend the settlement dates, Floor Price (as defined below) and Cap Price (as defined below) of the Forward Contract. Pursuant to the Amendment, AA Gables will be obligated to deliver to the dealer up to the Subject Shares (or at AA Gable's election, an equivalent amount of cash) on specified dates in March of 2027. The transaction is divided into four components, each comprising up to 625,000 shares of Class A Common Stock (the "Component Shares").

F2 · price: (Continued from Footnote 1) The number of Component Shares (or the equivalent amount of cash if AA Gables elects cash settlement), to be delivered to the dealer on the related settlement date will be based on the volume-weighted average price per share of Class A Common Stock on the related valuation date (the "Settlement Price").

F3 · price: The number of shares of Class A Common Stock (or, in each case, the equivalent amount of cash if AA Gables elects cash settlement), to be delivered to the dealer at settlement, as amended pursuant to the Amendment, will be determined as follows: (A) if the Settlement Price is less than or equal to $56.0564 (the "Floor Price"), AA Gables will deliver the Component Shares; (B) if the Settlement Price is less than or equal to $79.6590 (the "Cap Price"), but greater than the Floor Price, AA Gables will deliver a number of shares of Class A Common Stock equal to (i) the Component Shares, multiplied by a fraction, the numerator of which is the Floor Price and the denominator of which is the Settlement Price; and

F4 · price: (Continued from Footnote 3) (C) if the Settlement Price is greater than the Cap Price, AA Gables will deliver a number of shares of Class A Common Stock equal to (i) the Component Shares, multiplied by (ii) a fraction, the numerator of which is the sum of (x) the Floor Price and (y) the Settlement Price minus the Cap Price, and the denominator of which is the Settlement Price.

F5 · price: In connection with the Amendment, AA Gables received an aggregate cash payment of approximately $10.7 million, reflecting the economic effect of the Amendment to Forward Contract, and which is in addition to the $42.0 million aggregate upfront proceeds AA Gables received when the Forward Contract was originally entered into. AA Gables has pledged 2,500,000 common units of AST & Science, LLC (the "Pledged Securities") to secure its obligations under the Forward Contract. AA Gables will continue to retain voting rights in the Pledged Securities during the term of the Forward Contract.

F1 · derivative.exercise_date: On November 19, 2025, AA Gables, LLC ("AA Gables") entered into an amendment (the "Amendment") to the previously disclosed variable prepaid forward transaction (the "Forward Contract") entered into on November 20, 2024 with an unaffiliated dealer covering up to a maximum of 2,500,000 shares of the Issuer's Class A Common Stock (the "Subject Shares") in order to amend the settlement dates, Floor Price (as defined below) and Cap Price (as defined below) of the Forward Contract. Pursuant to the Amendment, AA Gables will be obligated to deliver to the dealer up to the Subject Shares (or at AA Gable's election, an equivalent amount of cash) on specified dates in March of 2027. The transaction is divided into four components, each comprising up to 625,000 shares of Class A Common Stock (the "Component Shares").

F2 · derivative.exercise_date: (Continued from Footnote 1) The number of Component Shares (or the equivalent amount of cash if AA Gables elects cash settlement), to be delivered to the dealer on the related settlement date will be based on the volume-weighted average price per share of Class A Common Stock on the related valuation date (the "Settlement Price").

F3 · derivative.exercise_date: The number of shares of Class A Common Stock (or, in each case, the equivalent amount of cash if AA Gables elects cash settlement), to be delivered to the dealer at settlement, as amended pursuant to the Amendment, will be determined as follows: (A) if the Settlement Price is less than or equal to $56.0564 (the "Floor Price"), AA Gables will deliver the Component Shares; (B) if the Settlement Price is less than or equal to $79.6590 (the "Cap Price"), but greater than the Floor Price, AA Gables will deliver a number of shares of Class A Common Stock equal to (i) the Component Shares, multiplied by a fraction, the numerator of which is the Floor Price and the denominator of which is the Settlement Price; and

F4 · derivative.exercise_date: (Continued from Footnote 3) (C) if the Settlement Price is greater than the Cap Price, AA Gables will deliver a number of shares of Class A Common Stock equal to (i) the Component Shares, multiplied by (ii) a fraction, the numerator of which is the sum of (x) the Floor Price and (y) the Settlement Price minus the Cap Price, and the denominator of which is the Settlement Price.

F5 · derivative.exercise_date: In connection with the Amendment, AA Gables received an aggregate cash payment of approximately $10.7 million, reflecting the economic effect of the Amendment to Forward Contract, and which is in addition to the $42.0 million aggregate upfront proceeds AA Gables received when the Forward Contract was originally entered into. AA Gables has pledged 2,500,000 common units of AST & Science, LLC (the "Pledged Securities") to secure its obligations under the Forward Contract. AA Gables will continue to retain voting rights in the Pledged Securities during the term of the Forward Contract.

F1 · derivative.expiration_date: On November 19, 2025, AA Gables, LLC ("AA Gables") entered into an amendment (the "Amendment") to the previously disclosed variable prepaid forward transaction (the "Forward Contract") entered into on November 20, 2024 with an unaffiliated dealer covering up to a maximum of 2,500,000 shares of the Issuer's Class A Common Stock (the "Subject Shares") in order to amend the settlement dates, Floor Price (as defined below) and Cap Price (as defined below) of the Forward Contract. Pursuant to the Amendment, AA Gables will be obligated to deliver to the dealer up to the Subject Shares (or at AA Gable's election, an equivalent amount of cash) on specified dates in March of 2027. The transaction is divided into four components, each comprising up to 625,000 shares of Class A Common Stock (the "Component Shares").

F2 · derivative.expiration_date: (Continued from Footnote 1) The number of Component Shares (or the equivalent amount of cash if AA Gables elects cash settlement), to be delivered to the dealer on the related settlement date will be based on the volume-weighted average price per share of Class A Common Stock on the related valuation date (the "Settlement Price").

F3 · derivative.expiration_date: The number of shares of Class A Common Stock (or, in each case, the equivalent amount of cash if AA Gables elects cash settlement), to be delivered to the dealer at settlement, as amended pursuant to the Amendment, will be determined as follows: (A) if the Settlement Price is less than or equal to $56.0564 (the "Floor Price"), AA Gables will deliver the Component Shares; (B) if the Settlement Price is less than or equal to $79.6590 (the "Cap Price"), but greater than the Floor Price, AA Gables will deliver a number of shares of Class A Common Stock equal to (i) the Component Shares, multiplied by a fraction, the numerator of which is the Floor Price and the denominator of which is the Settlement Price; and

F4 · derivative.expiration_date: (Continued from Footnote 3) (C) if the Settlement Price is greater than the Cap Price, AA Gables will deliver a number of shares of Class A Common Stock equal to (i) the Component Shares, multiplied by (ii) a fraction, the numerator of which is the sum of (x) the Floor Price and (y) the Settlement Price minus the Cap Price, and the denominator of which is the Settlement Price.

F5 · derivative.expiration_date: In connection with the Amendment, AA Gables received an aggregate cash payment of approximately $10.7 million, reflecting the economic effect of the Amendment to Forward Contract, and which is in addition to the $42.0 million aggregate upfront proceeds AA Gables received when the Forward Contract was originally entered into. AA Gables has pledged 2,500,000 common units of AST & Science, LLC (the "Pledged Securities") to secure its obligations under the Forward Contract. AA Gables will continue to retain voting rights in the Pledged Securities during the term of the Forward Contract.

F6 · ownership.nature: Mr. Avellan is the sole member and managing member of AA Gables.

SEC source: 0001493152-25-023910 · ownership.xml · derivative · entry 2

Yao Huiwen · CIK 0002027976 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 339,912

Underlying: Class A Common Stock · 40,000 shares

Expires 2029-04-17

F2 · derivative.exercise_date: Six months after vesting, each AST LLC Incentive Equity Option is exercisable for an AST LLC Incentive Equity Unit, each of which is then exchangeable for an AST LLC Common Unit that is redeemable for one share of Class A Common Stock. The AST LLC Incentive Equity Options expire no later than 10 years from the date of grant.

F2 · derivative.expiration_date: Six months after vesting, each AST LLC Incentive Equity Option is exercisable for an AST LLC Incentive Equity Unit, each of which is then exchangeable for an AST LLC Common Unit that is redeemable for one share of Class A Common Stock. The AST LLC Incentive Equity Options expire no later than 10 years from the date of grant.

F2 · ownership.nature: Six months after vesting, each AST LLC Incentive Equity Option is exercisable for an AST LLC Incentive Equity Unit, each of which is then exchangeable for an AST LLC Common Unit that is redeemable for one share of Class A Common Stock. The AST LLC Incentive Equity Options expire no later than 10 years from the date of grant.

SEC source: 0001493152-25-023910 · ownership.xml · nonDerivative · entry 1

Yao Huiwen · CIK 0002027976 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 44,750

F1 · shares: Represents shares of Class A Common Stock obtained from exercise of AST LLC Incentive Equity Options.

SEC source: 0001493152-25-018843 · ownership.xml · nonDerivative · entry 1

Bernal Maya · CIK 0002027960 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 128,486

F1 · shares: Represents a payment of tax liability by withholding securities incident to the vesting of Restricted Stock Units representing 10,000 shares of Class A Common Stock issued in accordance with Rule 16b-3, resulting in a net vested number of 6,065 shares.

SEC source: 0001493152-25-016038 · ownership.xml · nonDerivative · entry 1

Wisniewski Scott · CIK 0002028702 · President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 588,681

F1 · shares: Represents a payment of tax liability by withholding securities incident to the vesting of Restricted Stock Units representing 72,500 shares of Class A Common Stock issued in accordance with Rule 16b-3, resulting in a net vested number of 43,971 shares.

SEC source: 0001493152-25-013908 · ownership.xml · nonDerivative · entry 1

Yao Huiwen · CIK 0002027976 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,750

F1 · shares: The reported transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 12, 2025.

F2 · price: Represents the weighted average selling price. These shares were sold in multiple transactions at prices ranging from $39.93 per share to $41.08 per share, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001493152-25-013907 · ownership.xml · nonDerivative · entry 1

Gupta Shanti B. · CIK 0001884187 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 267,375

F1 · shares: Represents a payment of tax liability by withholding securities incident to the vesting of Restricted Stock Units representing 50,000 shares of Class A Common Stock issued in accordance with Rule 16b-3, resulting in a net vested number of 24,463 shares.

SEC source: 0001493152-25-012640 · ownership.xml · nonDerivative · entry 2

Yao Huiwen · CIK 0002027976 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 44,750

F2 · shares: Represents shares of Class A Common Stock sold by the Reporting Person to cover anticipated tax liabilities in connection with the exercise of 40,000 AST LLC Incentive Equity Options reported herein.

F3 · price: Represents the weighted average selling price. These shares were sold in multiple transactions at prices ranging from $47.58 per share to $48.29 per share, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001493152-25-012640 · ownership.xml · derivative · entry 3

Yao Huiwen · CIK 0002027976 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 379,912

Underlying: Class A Common Stock · 40,000 shares

Expires 2029-04-17

F4 · derivative.exercise_date: Six months after vesting, each AST LLC Incentive Equity Option is exercisable for an AST LLC Incentive Equity Unit, each of which is then exchangeable for an AST LLC Common Unit that is redeemable for one share of Class A Common Stock. The AST LLC Incentive Equity Options expire no later than 10 years from the date of grant.

F4 · derivative.expiration_date: Six months after vesting, each AST LLC Incentive Equity Option is exercisable for an AST LLC Incentive Equity Unit, each of which is then exchangeable for an AST LLC Common Unit that is redeemable for one share of Class A Common Stock. The AST LLC Incentive Equity Options expire no later than 10 years from the date of grant.

F4 · ownership.nature: Six months after vesting, each AST LLC Incentive Equity Option is exercisable for an AST LLC Incentive Equity Unit, each of which is then exchangeable for an AST LLC Common Unit that is redeemable for one share of Class A Common Stock. The AST LLC Incentive Equity Options expire no later than 10 years from the date of grant.

SEC source: 0001493152-25-012640 · ownership.xml · nonDerivative · entry 1

Yao Huiwen · CIK 0002027976 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 60,750

F1 · shares: Represents shares of Class A Common Stock obtained from exercise of AST LLC Incentive Equity Options.

SEC source: 0001493152-25-012355 · ownership.xml · nonDerivative · entry 1

Johnson Andrew Martin · CIK 0001548887 · CFO and CLO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 397,485

F1 · price: Represents the weighted average selling price. These shares were sold in multiple transactions at prices ranging from $52.46 per share to $52.56 per share, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001493152-25-012177 · ownership.xml · nonDerivative · entry 3

Wisniewski Scott · CIK 0002028702 · President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 617,210

F3 · shares: Represents a payment of tax liability by withholding securities incident to the vesting of Restricted Stock Units representing 25,000 shares of Class A Common Stock issued in accordance with Rule 16b-3, resulting in a net vested number of 15,162 shares.

SEC source: 0001493152-25-012177 · ownership.xml · nonDerivative · entry 2

Wisniewski Scott · CIK 0002028702 · President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 627,048

F2 · shares: Represents a payment of tax liability by withholding securities incident to the vesting of PSUs representing 31,250 shares of Class A Common Stock issued in accordance with Rule 16b-3, resulting in a net vested number of 18,953 shares.

SEC source: 0001493152-25-012177 · ownership.xml · nonDerivative · entry 1

Wisniewski Scott · CIK 0002028702 · President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 639,345

F1 · shares: Represents achievement of 125% of the 75,000 target number of performance-based stock unit awards ("PSUs") granted on August 15, 2024, following certification by the Issuer's compensation committee that the applicable company and individual performance conditions had been satisfied. One third of the PSUs representing 31,250 shares of Class A Common Stock vested immediately on August 15, 2025 and the remaining PSUs will vest equally on August 15, 2026 and August 15, 2027, subject to the Reporting Person's continued service through the vesting dates. Each PSU represents a contingent right to receive one share of the Issuer's Class A Common Stock.

SEC source: 0001493152-25-012175 · ownership.xml · nonDerivative · entry 1

Bernal Maya · CIK 0002027960 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 132,421

F1 · shares: Represents a payment of tax liability by withholding securities incident to the vesting of Restricted Stock Units representing 7,415 shares of Class A Common Stock issued in accordance with Rule 16b-3, resulting in a net vested number of 4,919 shares.

SEC source: 0001493152-25-012173 · ownership.xml · nonDerivative · entry 3

Johnson Andrew Martin · CIK 0001548887 · CFO and CLO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 417,485

F3 · shares: Represents a payment of tax liability by withholding securities incident to the vesting of Restricted Stock Units representing 25,000 shares of Class A Common Stock issued in accordance with Rule 16b-3, resulting in a net vested number of 15,162 shares.

SEC source: 0001493152-25-012173 · ownership.xml · nonDerivative · entry 2

Johnson Andrew Martin · CIK 0001548887 · CFO and CLO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 427,323

F2 · shares: Represents a payment of tax liability by withholding securities incident to the vesting of PSUs representing 31,250 shares of Class A Common Stock issued in accordance with Rule 16b-3, resulting in a net vested number of 18,953 shares.

SEC source: 0001493152-25-012173 · ownership.xml · nonDerivative · entry 1

Johnson Andrew Martin · CIK 0001548887 · CFO and CLO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 439,620

F1 · shares: Represents achievement of 125% of the 75,000 target number of performance-based stock unit awards ("PSUs") granted on August 15, 2024, following certification by the Issuer's compensation committee that the applicable company and individual performance conditions had been satisfied. One third of the PSUs representing 31,250 shares of Class A Common Stock vested immediately on August 15, 2025 and the remaining PSUs will vest equally on August 15, 2026 and August 15, 2027, subject to the Reporting Person's continued service through the vesting dates. Each PSU represents a contingent right to receive one share of the Issuer's Class A Common Stock.

SEC source: 0001493152-25-012179 · ownership.xml · nonDerivative · entry 1

Gupta Shanti B. · CIK 0001884187 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 292,912

F1 · shares: Represents a payment of tax liability by withholding securities incident to the vesting of Restricted Stock Units representing 25,000 shares of Class A Common Stock issued in accordance with Rule 16b-3, resulting in a net vested number of 12,245 shares.

SEC source: 0001641172-25-016737 · ownership.xml · nonDerivative · entry 1

Cisneros Adriana · CIK 0001749229 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 783,327

F1 · shares: Includes an additional grant of 801 restricted stock awards that vest in full on the earlier to occur of (i) the one-year anniversary of June 6, 2025 and (ii) the date of the next annual meeting of stockholders following the grant date, subject to continued service through the applicable vesting date.

F1 · balance_after: Includes an additional grant of 801 restricted stock awards that vest in full on the earlier to occur of (i) the one-year anniversary of June 6, 2025 and (ii) the date of the next annual meeting of stockholders following the grant date, subject to continued service through the applicable vesting date.

SEC source: 0001641172-25-016741 · ownership.xml · nonDerivative · entry 1

Wibergh Johan · CIK 0001729658 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 29,001

F1 · shares: Includes an additional grant of 801 restricted stock awards that vest in full on the earlier to occur of (i) the one-year anniversary of June 6, 2025 and (ii) the date of the next annual meeting of stockholders following the grant date, subject to continued service through the applicable vesting date.

F1 · balance_after: Includes an additional grant of 801 restricted stock awards that vest in full on the earlier to occur of (i) the one-year anniversary of June 6, 2025 and (ii) the date of the next annual meeting of stockholders following the grant date, subject to continued service through the applicable vesting date.

SEC source: 0001641172-25-016739 · ownership.xml · nonDerivative · entry 1

SARNOFF RICHARD · CIK 0001236133 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 78,239

F1 · shares: Includes an additional grant of 801 restricted stock awards that vest in full on the earlier to occur of (i) the one-year anniversary of June 6, 2025 and (ii) the date of the next annual meeting of stockholders following the grant date, subject to continued service through the applicable vesting date.

F1 · balance_after: Includes an additional grant of 801 restricted stock awards that vest in full on the earlier to occur of (i) the one-year anniversary of June 6, 2025 and (ii) the date of the next annual meeting of stockholders following the grant date, subject to continued service through the applicable vesting date.

SEC source: 0001641172-25-016738 · ownership.xml · nonDerivative · entry 1

RUBIN RONALD L · CIK 0001208969 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 71,239

F1 · shares: Includes an additional grant of 801 restricted stock awards that vest in full on the earlier to occur of (i) the one-year anniversary of June 6, 2025 and (ii) the date of the next annual meeting of stockholders following the grant date, subject to continued service through the applicable vesting date.

F1 · balance_after: Includes an additional grant of 801 restricted stock awards that vest in full on the earlier to occur of (i) the one-year anniversary of June 6, 2025 and (ii) the date of the next annual meeting of stockholders following the grant date, subject to continued service through the applicable vesting date.

SEC source: 0001641172-25-016740 · ownership.xml · nonDerivative · entry 1

Torres Julio A. · CIK 0001543079 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 58,239

F1 · shares: Includes an additional grant of 801 restricted stock awards that vest in full on the earlier to occur of (i) the one-year anniversary of June 6, 2025 and (ii) the date of the next annual meeting of stockholders following the grant date, subject to continued service through the applicable vesting date.

F1 · balance_after: Includes an additional grant of 801 restricted stock awards that vest in full on the earlier to occur of (i) the one-year anniversary of June 6, 2025 and (ii) the date of the next annual meeting of stockholders following the grant date, subject to continued service through the applicable vesting date.

SEC source: 0001641172-25-015314 · ownership.xml · nonDerivative · entry 1

Gupta Shanti B. · CIK 0001884187 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 305,667

F1 · price: Represents the weighted average selling price. These shares were sold in multiple transactions at prices ranging from $41.84 per share to $41.85 per share, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001641172-25-014556 · ownership.xml · nonDerivative · entry 1

Yao Huiwen · CIK 0002027976 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,750

F1 · shares: Represents shares of Class A Common Stock sold by the Reporting Person to cover anticipated tax liabilities in connection with the exercise of 25,000 AST LLC Incentive Equity Options reported on 06/02/2025.

SEC source: 0001641172-25-014355 · ownership.xml · nonDerivative · entry 1

Wisniewski Scott · CIK 0002028702 · President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 545,595