Lance Varro D Ambrosio - 11 Jul 2025 Form 4/A - Amendment Insider Report for Riot Platforms, Inc. (RIOT)

Role: Director
Signature: /s/ Tanya McGill, Attorney-in-Fact for Lance Varro D' Ambrosio
Issuer symbol: RIOT
Transactions as of: 11 Jul 2025
Net transactions value: $0
Form type: 4/A - Amendment
Filing time: 10 Oct 2025, 19:42:29 UTC
Date Of Original Report: 15 Jul 2025
Previous filing: 18 Sep 2024
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
D'Ambrosio Lance Varro	Director	C/O RIOT PLATFORMS, INC., 3855 AMBROSIA STREET, STE. 301, CASTLE ROCK	/s/ Tanya McGill, Attorney-in-Fact for Lance Varro D' Ambrosio	10 Oct 2025	0001611745

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	RIOT	Common Stock	Award	$0	+16,103	+36%	$0.000000	60,544	11 Jul 2025	Direct	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	This Form 4 amendment is being filed solely to add the Power of Attorney, attached as Exhibit 24.
F2	Represents an award of restricted shares of the Issuer's common stock, no par value per share, granted to the Reporting Person under the Issuer's 2019 Equity Incentive Plan, as amended, as of the indicated date, in connection with service on the Issuer's Board of Directors through June 30, 2026. These shares are eligible to vest, if at all, in four approximately equal tranches on September 30, 2025, December 31, 2025, March 31, 2026, and June 30, 2026, subject to the Reporting Person's continued service with the Issuer through the applicable vesting dates.

Content

This Form 4 amendment is being filed solely to add the Power of Attorney, attached as Exhibit 24.

Represents an award of restricted shares of the Issuer's common stock, no par value per share, granted to the Reporting Person under the Issuer's 2019 Equity Incentive Plan, as amended, as of the indicated date, in connection with service on the Issuer's Board of Directors through June 30, 2026. These shares are eligible to vest, if at all, in four approximately equal tranches on September 30, 2025, December 31, 2025, March 31, 2026, and June 30, 2026, subject to the Reporting Person's continued service with the Issuer through the applicable vesting dates.

Remarks:

Exhibit 24 - Power of Attorney