FMR LLC discloses 7.6% beneficial stake in Riot Platforms (RIOT) common stock

Rhea-AI Filing Summary

FMR LLC filed an amended beneficial ownership report on RIOT PLATFORMS INC, stating that it beneficially owns 29,645,078.97 shares of common stock, representing 7.6% of the class. These shares are reported with sole dispositive power and no shared voting or dispositive power.

The filing lists FMR LLC, organized in Delaware, as having 29,079,677.98 shares with sole voting power, while Abigail P. Johnson is reported as having sole dispositive power over 29,645,078.97 shares and no voting power. One or more other persons may receive dividends or sale proceeds from these shares, but no such person holds more than five percent of the outstanding common stock.

Key Figures

Beneficial ownership: 29,645,078.97 shares Percent of class: 7.6% Sole voting power: 29,079,677.98 shares +3 more

6 metrics

Beneficial ownership 29,645,078.97 shares Common stock of RIOT PLATFORMS INC beneficially owned by FMR LLC

Percent of class 7.6% Percentage of RIOT PLATFORMS INC common stock class reported as beneficially owned

Sole voting power 29,079,677.98 shares Shares of RIOT common stock over which FMR LLC has sole voting power

Shared voting power 0.00 shares RIOT common stock over which FMR LLC has shared voting power

Sole dispositive power 29,645,078.97 shares RIOT common stock over which dispositive power is reported as sole

Signature date 08/05/2026 Date the ownership report was signed by attorney-in-fact

Key Terms

beneficially owned, Sole Voting Power, Sole Dispositive Power, percent of class, +1 more

5 terms

beneficially owned financial

"Ownership (a) | Amount beneficially owned: 29645078.97"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

Sole Voting Power financial

"5 | Sole Voting Power 29,079,677.98 6 | Shared Voting Power 0.00"

Sole voting power is the exclusive right to cast votes attached to a shareholder’s stock without needing approval from anyone else. Like holding the only remote control for a TV, it lets that holder decide corporate matters such as board members, mergers, and policy changes, making it important to investors because it concentrates control and can strongly influence a company’s strategy and the value of its shares.

Sole Dispositive Power financial

"7 | Sole Dispositive Power 29,645,078.97 8 | Shared Dispositive Power 0.00"

Sole dispositive power is the exclusive legal authority to decide what happens to a security — for example, whether to sell, transfer, or retain shares — without needing anyone else’s permission. Investors care because it signals who truly controls the economic outcome of an investment: like holding the only key to a safe, the holder can realize gains or losses and may trigger regulatory reporting, insider rules, or influence over corporate ownership.

percent of class financial

"11 7.6 % 12 Item 4. | Ownership (a) | Amount beneficially owned"

Percent of class is the portion of a specific category of securities—such as a company’s common shares, preferred shares, or a bond series—that takes part in or approves a corporate action (vote, consent, tender, etc.). Investors watch this number because it reveals how much support or opposition exists within that particular shareholder group; like counting how many members of a club back a proposal, it can determine whether a plan passes or how influence is distributed.

Power of Attorney regulatory

"Duly authorized under Power of Attorney effective as of January 3, 2023"

A power of attorney is a legal document that allows one person to make decisions and act on behalf of another person, often in financial or legal matters. It’s like giving someone a trusted helper or agent the authority to handle important tasks if you are unable to do so yourself. This matters to investors because it can impact how their assets are managed or transferred if they become unable to oversee their affairs.

AI-generated analysis. How Rhea-AI works. Not financial advice.

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Available on EDGAR 08/06/2026 - 10:39 AM Accepted by SEC EDGAR 08/06/2026 - 10:38 AM Learn about SEC filing dates

FAQ

What stake in RIOT (RIOT) does FMR LLC report in this Schedule 13G/A amendment?

FMR LLC reports beneficial ownership of 29,645,078.97 RIOT common shares, representing 7.6% of the outstanding class. The position is reported with sole dispositive power and no shared voting or dispositive authority.

How much voting power over RIOT (RIOT) stock does FMR LLC report?

FMR LLC reports 29,079,677.98 shares of RIOT common stock with sole voting power and 0.00 shares with shared voting power. This quantifies the shares for which FMR LLC can direct voting decisions.

What is Abigail P. Johnson’s reported relationship to RIOT (RIOT) shares?

Abigail P. Johnson is reported as having sole dispositive power over 29,645,078.97 RIOT shares and no voting power. The same 7.6% beneficial ownership percentage is reported in her capacity, with no shared dispositive power.

Does any other investor hold more than 5% of RIOT (RIOT) through FMR’s reported position?

The filing states that one or more other persons may receive dividends or sale proceeds from the RIOT shares, but that no single such person has an interest in more than five percent of the total outstanding common stock.

What class of RIOT (RIOT) securities is covered and what is the CUSIP?

The report covers RIOT PLATFORMS INC common stock with CUSIP 767292105. All ownership figures, including the 29,645,078.97 shares and 7.6% of the class, relate specifically to this common stock class.

Who signed the RIOT (RIOT) beneficial ownership report on behalf of FMR LLC and Abigail P. Johnson?

The report is signed by Stephanie J. Brown, acting under powers of attorney effective January 3, 2023 for FMR LLC and January 26, 2023 for Abigail P. Johnson. Both signatures are dated 08/05/2026.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 1)

RIOT PLATFORMS INC

(Name of Issuer)

COMMON STOCK

(Title of Class of Securities)

767292105

(CUSIP Number)

06/30/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 767292105

1

Names of Reporting Persons

FMR LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 29,079,677.98
6	Shared Voting Power 0.00
7	Sole Dispositive Power 29,645,078.97
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

29,645,078.97

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

7.6 %

12

Type of Reporting Person (See Instructions)

HC

SCHEDULE 13G

CUSIP Number(s): 767292105

1

Names of Reporting Persons

Abigail P. Johnson

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 29,645,078.97
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

29,645,078.97

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

7.6 %

12

Type of Reporting Person (See Instructions)

IN

SCHEDULE 13G

Item 1.
(a)	Name of issuer: RIOT PLATFORMS INC
(b)	Address of issuer's principal executive offices: 3855 AMBROSIA STREET,SUITE 301,CASTLE ROCK,CO,USA,80109
Item 2.
(a)	Name of person filing: FMR LLC
(b)	Address or principal business office or, if none, residence: 245 Summer Street, Boston, Massachusetts 02210
(c)	Citizenship: Not applicable
(d)	Title of class of securities: COMMON STOCK
(e)	CUSIP No.: 767292105
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 29645078.97
(b)	Percent of class: 7.6 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: Please see the responses to Items 5 and 6 on the cover page.
	(ii) Shared power to vote or to direct the vote: 0.00
	(iii) Sole power to dispose or to direct the disposition of: 29645078.97
	(iv) Shared power to dispose or to direct the disposition of: 0.00
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required. One or more other persons are known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the COMMON STOCK of RIOT PLATFORMS INC. No one other person's interest in the COMMON STOCK of RIOT PLATFORMS INC is more than five percent of the total outstanding COMMON STOCK.
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary. See attached Exhibit 99.
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

FMR LLC

Signature:	Stephanie J. Brown
Name/Title:	Duly authorized under Power of Attorney effective as of January 3, 2023, by and on behalf of FMR LLC and its direct and indirect subsidiaries*
Date:	08/05/2026

Abigail P. Johnson

Signature:	Stephanie J. Brown
Name/Title:	Duly authorized under Power of Attorney effective as of January 26, 2023, by and on behalf of Abigail P. Johnson**
Date:	08/05/2026

Comments accompanying signature: * This power of attorney is incorporated herein by reference to Exhibit 24 to the Schedule 13G filed by FMR LLC on January 10, 2023, accession number: 0000315066-23-000003. ** This power of attorney is incorporated herein by reference to Exhibit 24 to the Schedule 13G filed by FMR LLC on January 31, 2023, accession number: 0000315066-23-000038.

Exhibit Information

Please see Exhibit 99 for 13d-1(k) (1) agreement.