BlackRock reports 8.27M shares in Rubrik (5.3%)

BlackRock, Inc. reports beneficial ownership of 8,266,919 shares of Rubrik, Inc. common stock, representing 5.3% of the class as reported for the reporting period ended 03/31/2026.

Rhea-AI Filing Summary

BlackRock, Inc. reports beneficial ownership of 8,266,919 shares of Rubrik, Inc. common stock, representing 5.3% of the class as reported for the reporting period ended 03/31/2026. The filing shows sole voting power over 7,993,507 shares and sole dispositive power over 8,266,919 shares.

Insights

Institutional Ownership Analyst

Large asset manager holds a >5% stake in Rubrik, signaling passive institutional ownership.

BlackRock's Schedule 13G discloses beneficial ownership of 5.3% or 8,266,919 shares as of 03/31/2026. Schedule 13G status typically indicates passive investment rather than activist intent.

Future filings may update the position; changes would appear in amended Schedules or Form 13D filings if the intent changes.

Legal & Compliance Analyst

Filing meets disclosure rules under the Exchange Act for passive investors above 5%.

The filing includes Exhibit 24 (power of attorney) and Exhibit 99 references for Item 7, and is signed by a BlackRock Managing Director. It follows Schedule 13G conventions for passive holders under SEC rules.

Material changes in ownership or control would require an amendment or a different schedule classification.

Key Figures

Beneficial ownership: 8,266,919 shares Percent of class: 5.3% Sole voting power: 7,993,507 shares +2 more

5 metrics

Beneficial ownership 8,266,919 shares Amount beneficially owned reported in Item 4

Percent of class 5.3% Percent of common stock reported in Item 4 as of 03/31/2026

Sole voting power 7,993,507 shares Sole power to vote reported in Item 4

Report date (ownership) 03/31/2026 Reporting period end for ownership figures

Signature date 04/27/2026 Schedule signed by Managing Director Spencer Fleming

Key Terms

Schedule 13G, Beneficial ownership, Sole dispositive power, Exhibit 24, +1 more

5 terms

Schedule 13G regulatory

"Name of form: SCHEDULE 13G; passive investor disclosure"

A Schedule 13G is a formal document that investors file with the government when they acquire a large ownership stake in a company, usually for investment purposes rather than control. It helps keep the public informed about who owns significant parts of a company's shares, which can influence how the company is managed and how investors make decisions. Filing this schedule is important for transparency and understanding the ownership landscape of publicly traded companies.

Beneficial ownership financial

"Amount beneficially owned: 8266919 (b) Percent of class: 5.3 %"

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

Sole dispositive power regulatory

"Sole power to dispose or to direct the disposition of: 8266919"

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.

Exhibit 24 legal

"Exhibit 24: Power of Attorney"

Investment Company Act regulatory

"Listing of shareholders of an investment company registered under the Investment Company Act"

The Investment Company Act is a law that sets rules for businesses whose main activity is managing and selling pooled money, such as mutual funds and other investment funds. It matters to investors because it requires clear reporting, limits managers from putting their own interests ahead of clients, and mandates safekeeping and oversight of assets—similar to safety inspections and traffic rules that help keep shared vehicles reliable and trustworthy.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What stake does BlackRock hold in Rubrik (RBRK)?

BlackRock reports beneficial ownership of 8,266,919 shares, equal to 5.3% of Rubrik's common stock as of 03/31/2026. The Schedule 13G classifies this as passive ownership under SEC rules.

Does the Schedule 13G indicate BlackRock is an activist owner of RBRK?

No. The Schedule 13G filing format typically signals passive investment intent rather than active control. It does not state activist intentions or plans to influence management or policies.

How many votes does BlackRock control for Rubrik shares?

The filing shows sole voting power for 7,993,507 shares and sole dispositive power for 8,266,919 shares as disclosed in Item 4 of the filing.

When was BlackRock's Schedule 13G signed for RBRK?

The Schedule 13G for Rubrik was signed by a BlackRock Managing Director on 04/27/2026, with the ownership figures reported as of 03/31/2026

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

Accepted by SEC EDGAR 04/27/2026 - 04:12 PM EDT Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

Rubrik, Inc.

(Name of Issuer)

Common Stock

(Title of Class of Securities)

781154109

(CUSIP Number)

03/31/2026

(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): 781154109

1

Names of Reporting Persons

BlackRock, Inc.

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 7,993,507.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 8,266,919.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

8,266,919.00

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)

5.3 %

12

Type of Reporting Person (See Instructions)

HC

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Rubrik, Inc.
(b)	Address of issuer's principal executive offices: 3495 Deer Creek Road Palo Alto CA 94304
Item 2.
(a)	Name of person filing: BlackRock, Inc. In accordance with SEC Release No. 34-39538 (January 12, 1998), this Schedule 13G reflects the securities beneficially owned, or deemed to be beneficially owned, by certain business units (collectively, the "Reporting Business Units") of BlackRock, Inc. and its subsidiaries and affiliates. It does not include securities, if any, beneficially owned by other business units whose beneficial ownership of securities are disaggregated from that of the Reporting Business Units in accordance with such release.
(b)	Address or principal business office or, if none, residence: BlackRock, Inc., 50 Hudson Yards New York, NY 10001
(c)	Citizenship: See Item 4 of Cover Page
(d)	Title of class of securities: Common Stock
(e)	CUSIP Number(s): 781154109
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: 8266919
(b)	Percent of class: 5.3 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 7993507
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 8266919
	(iv) Shared power to dispose or to direct the disposition of: 0
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. Various persons 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 Rubrik, Inc.. No one person's interest in the common stock of Rubrik, Inc. is more than five percent of the total outstanding common shares.
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 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.

BlackRock, Inc.

Signature:	Spencer Fleming
Name/Title:	Managing Director
Date:	04/27/2026

Exhibit Information

Exhibit 24: Power of Attorney Exhibit 99: Item 7