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C 10b5-1 Plan

$ Value

$0

Shares

42,743

Price

$0

Filed

Dec 29

Insider

Name

Skates Spenser

Title

Chief Executive Officer

CIK

0001882913

Roles

Director Officer 10% Owner

Transaction Details

Transaction Date

2025-12-24

Code

C

Table

Derivative

Ownership

Indirect

Equity Swap

No

Shares After

567,257

Footnotes

The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions, (b) the death or incapacity of Mr. Skates, (c) the date that is six months following the date on which Mr. Skates is no longer an employee or director of the Issuer (unless Mr. Skates has rejoined the Issuer during such six-month period) or (d) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period). | The sales reported were effected pursuant to a 10b5-1 trading plan adopted by the Reporting Person's spouse on August 8, 2025. | This transaction was executed in multiple trades at prices ranging from $12.0000 to $12.0400. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

Filing Info

Accession No.

0001882913-25-000005

Form Type

4

Issuer CIK

0001866692

Skates Spenser's History

Date Ticker Type Value
2026-04-21 AMPL A $0
2025-12-26 AMPL C $0
2025-12-26 AMPL $1K
2025-12-26 AMPL C $0
2025-12-24 AMPL C $0
2025-12-24 AMPL $513K
2025-12-24 AMPL C $0
2025-11-11 AMPL C $0
2025-11-11 AMPL $4.4M
2025-11-11 AMPL C $0

Other Insiders at AMPL (90d)

Insider Bought Sold Last
Schultz Erica 2026-04-05
HANSEN THOMAS NEERGAARD
President
2026-02-15
Tzuo Tien 2026-04-05
Skates Spenser
CEO and President
2026-04-21
Liu Curtis
Chief Technology Officer
$506K 2026-04-15
Casey Andrew
Chief Financial Officer
2026-04-15
Crook Nathaniel Glenn
Chief Commercial Officer
2026-04-15