AMPX

SEC source: 0001940928-26-000012 · wk-form4_1772837175.xml · nonDerivative · entry 1

Stefan Constantin Ionel · CIK 0001940928 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 833,330

F1 · shares: The securities are represented by restricted stock units. Each restricted stock unit represents the reporting person's right to receive one share of the issuer's common stock. 1/16th of shares subject to award will vest on May 20, 2026 and quarterly thereafter on each August 20, November 20, February 20 and May 20, subject to the reporting person's continued service on each such date, until the award is fully vested on February 20, 2030.

F2 · balance_after: Includes 643,440 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0001920996-26-000002 · wk-form4_1772837217.xml · nonDerivative · entry 1

RODRIGUEZ RICARDO C. · CIK 0001920996 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 350,000

F1 · shares: The securities are represented by restricted stock units. Each restricted stock unit represents the reporting person's right to receive one share of the issuer's common stock. 1/16th of shares subject to award will vest on May 20, 2026 and quarterly thereafter on each August 20, November 20, February 20 and May 20, subject to the reporting person's continued service on each such date, until the award is fully vested on February 20, 2030.

F2 · balance_after: Includes 350,000 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0001920996-26-000004 · wk-form4a_1773439767.xml · nonDerivative · entry 1

RODRIGUEZ RICARDO C. · CIK 0001920996 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 350,000

F1 · shares: This Form 4/A is filed solely to correct the vesting schedule of the restricted stock units of the reporting person reported in the original filing. 3/16th of shares subject to award will vest on November 20, 2026 and quarterly thereafter on each February 20, May 20, August 20 and November 20, subject to the reporting person's continued service on each such date, until the award is fully vested on February 20, 2030.

SEC source: 0001940928-26-000009 · wk-form4_1771970932.xml · nonDerivative · entry 1

Stefan Constantin Ionel · CIK 0001940928 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 723,330

F1 · kind: This transaction was effected pursuant to non-discretionary, sell-to-cover arrangements mandated by the issuer to fund tax withholding obligations in connection with the vesting of restricted stock units.

F2 · price: The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $9.96 to $10.35, 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 above.

F3 · balance_after: Includes 533,440 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0001476220-26-000011 · wk-form4_1771971079.xml · nonDerivative · entry 1

Sun Kang · CIK 0001476220 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,342,400

F1 · kind: This transaction was effected pursuant to non-discretionary, sell-to-cover arrangements mandated by the issuer to fund tax withholding obligations in connection with the vesting of restricted stock units.

F2 · price: The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $9.96 to $10.35, 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 above.

F3 · balance_after: Includes 1,159,385 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0001940928-26-000004 · wk-form4_1769814158.xml · derivative · entry 5

Stefan Constantin Ionel · CIK 0001940928 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common stock · 39,600 shares

Expires 2027-03-15

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 · kind: The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025.

SEC source: 0001940928-26-000004 · wk-form4_1769814158.xml · derivative · entry 4

Stefan Constantin Ionel · CIK 0001940928 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common stock · 90 shares

Expires 2027-03-15

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 · kind: The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025.

SEC source: 0001940928-26-000004 · wk-form4_1769814158.xml · nonDerivative · entry 3

Stefan Constantin Ionel · CIK 0001940928 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 748,696

F1 · kind: The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025.

F3 · price: The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $12.00 to $12.02, 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 above.

F2 · balance_after: Includes 585,697 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0001940928-26-000004 · wk-form4_1769814158.xml · nonDerivative · entry 2

Stefan Constantin Ionel · CIK 0001940928 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 788,386

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 · kind: The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025.

F2 · balance_after: Includes 585,697 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0001940928-26-000004 · wk-form4_1769814158.xml · nonDerivative · entry 1

Stefan Constantin Ionel · CIK 0001940928 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 748,786

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 · kind: The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025.

F2 · balance_after: Includes 585,697 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0001940928-26-000002 · wk-form4_1769207803.xml · derivative · entry 17

Stefan Constantin Ionel · CIK 0001940928 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 39,600

Underlying: Common stock · 1,600 shares

Expires 2027-03-15

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 · kind: The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025.

SEC source: 0001940928-26-000002 · wk-form4_1769207803.xml · nonDerivative · entry 10

Stefan Constantin Ionel · CIK 0001940928 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 748,696

F1 · kind: The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025.

F5 · price: These shares were sold at $12.00. 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 shares sold.

F2 · balance_after: Includes 585,697 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0001940928-26-000002 · wk-form4_1769207803.xml · nonDerivative · entry 9

Stefan Constantin Ionel · CIK 0001940928 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 750,296

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 · kind: The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025.

F2 · balance_after: Includes 585,697 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0001940928-26-000002 · wk-form4_1769207803.xml · derivative · entry 16

Stefan Constantin Ionel · CIK 0001940928 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common stock · 166,104 shares

Expires 2027-07-11

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 · kind: The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025.

SEC source: 0001940928-26-000002 · wk-form4_1769207803.xml · derivative · entry 15

Stefan Constantin Ionel · CIK 0001940928 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common stock · 72,795 shares

Expires 2028-03-19

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 · kind: The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025.

SEC source: 0001940928-26-000002 · wk-form4_1769207803.xml · derivative · entry 14

Stefan Constantin Ionel · CIK 0001940928 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 41,200

Underlying: Common stock · 253,928 shares

Expires 2027-03-15

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 · kind: The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025.

SEC source: 0001940928-26-000002 · wk-form4_1769207803.xml · nonDerivative · entry 8

Stefan Constantin Ionel · CIK 0001940928 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 748,696

F1 · kind: The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025.

F4 · price: The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $12.00 to $12.135, 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 above.

F2 · balance_after: Includes 585,697 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0001940928-26-000002 · wk-form4_1769207803.xml · nonDerivative · entry 7

Stefan Constantin Ionel · CIK 0001940928 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,241,523

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 · kind: The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025.

F2 · balance_after: Includes 585,697 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0001940928-26-000002 · wk-form4_1769207803.xml · nonDerivative · entry 6

Stefan Constantin Ionel · CIK 0001940928 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,075,419

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 · kind: The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025.

F2 · balance_after: Includes 585,697 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0001940928-26-000002 · wk-form4_1769207803.xml · nonDerivative · entry 5

Stefan Constantin Ionel · CIK 0001940928 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,002,624

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 · kind: The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025.

F2 · balance_after: Includes 585,697 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0001940928-26-000002 · wk-form4_1769207803.xml · derivative · entry 13

Stefan Constantin Ionel · CIK 0001940928 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 166,104

Underlying: Common stock · 15,883 shares

Expires 2027-07-11

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 · kind: The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025.

SEC source: 0001940928-26-000002 · wk-form4_1769207803.xml · derivative · entry 12

Stefan Constantin Ionel · CIK 0001940928 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 295,128

Underlying: Common stock · 15,834 shares

Expires 2027-03-15

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 · kind: The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025.

SEC source: 0001940928-26-000002 · wk-form4_1769207803.xml · derivative · entry 11

Stefan Constantin Ionel · CIK 0001940928 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 90

Underlying: Common stock · 41,563 shares

Expires 2027-03-15

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 · kind: The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025.

SEC source: 0001940928-26-000002 · wk-form4_1769207803.xml · nonDerivative · entry 4

Stefan Constantin Ionel · CIK 0001940928 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 748,696

F1 · kind: The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025.

F3 · price: The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $12.00 to $12.01, 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 above.

F2 · balance_after: Includes 585,697 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0001940928-26-000002 · wk-form4_1769207803.xml · nonDerivative · entry 3

Stefan Constantin Ionel · CIK 0001940928 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 821,976

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 · kind: The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025.

F2 · balance_after: Includes 585,697 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0001940928-26-000002 · wk-form4_1769207803.xml · nonDerivative · entry 2

Stefan Constantin Ionel · CIK 0001940928 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 806,093

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 · kind: The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025.

F2 · balance_after: Includes 585,697 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0001940928-26-000002 · wk-form4_1769207803.xml · nonDerivative · entry 1

Stefan Constantin Ionel · CIK 0001940928 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 790,259

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 · kind: The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025.

F2 · balance_after: Includes 585,697 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0001476220-26-000005 · wk-form4_1768948377.xml · derivative · entry 9

Sun Kang · CIK 0001476220 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,312,505

Underlying: Common stock · 43,185 shares

Expires 2031-06-16

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 · kind: The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 18, 2025.

SEC source: 0001476220-26-000005 · wk-form4_1768948377.xml · nonDerivative · entry 5

Sun Kang · CIK 0001476220 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,403,651

F1 · kind: The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 18, 2025.

F4 · price: The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $11.00 to $11.10, 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 above.

F2 · balance_after: Includes 1,285,576 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0001476220-26-000005 · wk-form4_1768948377.xml · nonDerivative · entry 4

Sun Kang · CIK 0001476220 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,446,836

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 · kind: The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 18, 2025.

F2 · balance_after: Includes 1,285,576 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0001476220-26-000005 · wk-form4_1768948377.xml · derivative · entry 8

Sun Kang · CIK 0001476220 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,355,690

Underlying: Common stock · 100,210 shares

Expires 2031-06-16

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 · kind: The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 18, 2025.

SEC source: 0001476220-26-000005 · wk-form4_1768948377.xml · derivative · entry 7

Sun Kang · CIK 0001476220 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common stock · 850,338 shares

Expires 2030-09-17

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 · kind: The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 18, 2025.

SEC source: 0001476220-26-000005 · wk-form4_1768948377.xml · nonDerivative · entry 3

Sun Kang · CIK 0001476220 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,403,651

F1 · kind: The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 18, 2025.

F3 · price: The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $11.00 to $11.20, 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 above.

F2 · balance_after: Includes 1,285,576 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0001476220-26-000005 · wk-form4_1768948377.xml · nonDerivative · entry 2

Sun Kang · CIK 0001476220 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,354,199

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 · kind: The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 18, 2025.

F2 · balance_after: Includes 1,285,576 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0001476220-26-000005 · wk-form4_1768948377.xml · nonDerivative · entry 1

Sun Kang · CIK 0001476220 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,253,989

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 · kind: The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 18, 2025.

F2 · balance_after: Includes 1,285,576 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0001476220-26-000003 · wk-form4_1768431887.xml · derivative · entry 8

Sun Kang · CIK 0001476220 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 850,338

Underlying: Common stock · 117,201 shares

Expires 2030-09-17

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 · kind: The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 18, 2025.

SEC source: 0001476220-26-000003 · wk-form4_1768431887.xml · derivative · entry 7

Sun Kang · CIK 0001476220 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common stock · 208,264 shares

Expires 2029-01-02

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 · kind: The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 18, 2025.

SEC source: 0001476220-26-000003 · wk-form4_1768431887.xml · derivative · entry 6

Sun Kang · CIK 0001476220 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common stock · 180,802 shares

Expires 2027-12-12

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 · kind: The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 18, 2025.

SEC source: 0001476220-26-000003 · wk-form4_1768431887.xml · nonDerivative · entry 4

Sun Kang · CIK 0001476220 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,403,651

F1 · kind: The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 18, 2025.

F3 · price: The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $10.00 to $10.25, 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 above.

F2 · balance_after: Includes 1,285,576 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0001476220-26-000003 · wk-form4_1768431887.xml · nonDerivative · entry 3

Sun Kang · CIK 0001476220 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,909,918

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 · kind: The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 18, 2025.

F2 · balance_after: Includes 1,285,576 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0001476220-26-000003 · wk-form4_1768431887.xml · nonDerivative · entry 2

Sun Kang · CIK 0001476220 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,792,717

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 · kind: The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 18, 2025.

F2 · balance_after: Includes 1,285,576 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0001476220-26-000003 · wk-form4_1768431887.xml · nonDerivative · entry 1

Sun Kang · CIK 0001476220 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,584,453

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 · kind: The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 18, 2025.

F2 · balance_after: Includes 1,285,576 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0002067233-25-000010 · wk-form4_1766411211.xml · nonDerivative · entry 1

Stepien Thomas M · CIK 0002067233 · Director · President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 610,000

F1 · shares: The securities are represented by restricted stock units granted on December 19, 2025, with a vesting commencement date of January 1, 2026. Each restricted stock unit represents the reporting person's right to receive one share of the issuer's common stock. 1/4th of the restricted stock units subject to the award will vest on February 20, 2027 and the remainder will vest quarterly over three years thereafter, on each May 20, August 20, November 20 and February 20, subject to the reporting person's continued service on each such date, until the award is fully vested on February 20, 2030.

F2 · balance_after: Includes 600,000 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0002067233-26-000004 · wk-form4a_1778187198.xml · nonDerivative · entry 1

Stepien Thomas M · CIK 0002067233 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 760,000

F1 · shares: This Form 4/A is filed solely to correct the vesting schedule of the restricted stock units of the reporting person reported in the original filing. 2/16th of the shares subject to the award will vest on May 20, 2026 and 1/16th of the shares subject to the award will vest quarterly thereafter on each August 20, November 20, February 20 and May 20, subject to the reporting person's continued service on each such date, until the award is fully vested on November 20, 2029.

SEC source: 0001940928-25-000020 · wk-form4_1765841130.xml · derivative · entry 3

Stefan Constantin Ionel · CIK 0001940928 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 310,962

Underlying: Common stock · 125,000 shares

Expires 2027-03-15

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 · kind: The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025.

SEC source: 0001940928-25-000020 · wk-form4_1765841130.xml · nonDerivative · entry 2

Stefan Constantin Ionel · CIK 0001940928 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 748,696

F1 · kind: The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025.

F3 · price: The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $10.14 to $11.49, 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 above.

F2 · balance_after: Includes 585,697 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0001940928-25-000020 · wk-form4_1765841130.xml · nonDerivative · entry 1

Stefan Constantin Ionel · CIK 0001940928 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 946,951

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 · kind: The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025.

F2 · balance_after: Includes 585,697 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0001940928-25-000018 · wk-form4_1764114929.xml · nonDerivative · entry 1

Stefan Constantin Ionel · CIK 0001940928 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 821,951

F1 · kind: This transaction was effected pursuant to non-discretionary, sell-to-cover arrangements mandated by the issuer to fund tax withholding obligations in connection with the vesting of restricted stock units.

F2 · price: The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $10.05 to $10.13, 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 above.

F3 · balance_after: Includes 585,697 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0001476220-25-000023 · wk-form4_1764114867.xml · nonDerivative · entry 1

Sun Kang · CIK 0001476220 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,403,651

F1 · kind: This transaction was effected pursuant to non-discretionary, sell-to-cover arrangements mandated by the issuer to fund tax withholding obligations in connection with the vesting of restricted stock units.

F2 · price: The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $10.05 to $10.13, 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 above.

F3 · balance_after: Includes 1,285,576 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0001476220-25-000018 · wk-form4_1763592590.xml · derivative · entry 10

Sun Kang · CIK 0001476220 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common stock · 41,653 shares

Expires 2027-03-15

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 · kind: The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 18, 2025.