Acuitas Investments reports 3.35% stake in Red Robin (RRGB)

Rhea-AI Filing Summary

Red Robin Gourmet Burgers Inc: Acuitas Investments, LLC reports beneficial ownership of 606,353 shares of Common Stock, representing 3.35% of the class. The filing lists shared voting power and shared dispositive power over 606,353 shares. The report is filed as Amendment No. 3 and is signed by Chief Compliance Officer Lisa Thenell on 04/28/2026; the cover lists 03/31/2026.

Insights

Institutional Ownership Analyst

Passive holder reports a sub-5% stake with shared voting control.

Acuitas Investments, LLC discloses a 3.35% stake in Red Robin (606,353 shares). The filing classifies the position under Item 5 as ownership of 5% or less, indicating a passive reporting threshold rather than an activist or control claim.

Voting and dispositive authority are reported as shared for the full amount, which suggests ownership is held in an account or vehicle where control is shared with others. Subsequent filings would show any material changes in position.

Key Figures

Shares beneficially owned: 606,353 shares Percent of class: 3.35% Filing amendment: Amendment No. 3 +2 more

5 metrics

Shares beneficially owned 606,353 shares reported in Schedule 13G/A

Percent of class 3.35% percent of common stock owned

Filing amendment Amendment No. 3 Schedule 13G/A amendment label

Signature date 04/28/2026 signed by Chief Compliance Officer Lisa Thenell

Cover date 03/31/2026 date shown on form header

Key Terms

Schedule 13G/A, beneficially owned, shared dispositive power, shared voting power

4 terms

Schedule 13G/A regulatory

"Amendment No. 3 )"

A Schedule 13G/A is an amended public filing with the U.S. securities regulator that updates a previous Schedule 13G, disclosing when an individual or group holds a substantial (typically over 5%) stake in a company and is claiming a passive, non‑controlling intent. Investors monitor these updates because rising or falling holdings can signal changing confidence, potential future moves, or shifts in voting power — like watching a public ledger where large shareholders quietly adjust their positions.

beneficially owned financial

"Amount beneficially owned: 606,353"

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.

shared dispositive power regulatory

"Shared Dispositive Power 606,353.00"

shared voting power regulatory

"Shared Voting Power 606,353.00"

Shared voting power occurs when two or more parties jointly have the right to vote or decide how a block of company shares is cast, like co-owners who must agree before moving a piece of furniture. Investors care because who controls voting rights affects board elections, major corporate decisions and takeover outcomes, and shared control can alter regulatory disclosures and the practical influence any holder has over a company’s direction and value.

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

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Accepted by SEC EDGAR 04/28/2026 - 04:57 PM Learn about SEC filing dates

FAQ

What stake does Acuitas Investments report in RRGB?

Acuitas reports beneficial ownership of 606,353 shares, equal to 3.35% of the common stock. The filing lists shared voting and shared dispositive power over the full 606,353 shares.

Is Acuitas a controlling shareholder of RRGB?

No; Acuitas reports ownership under the "5 Percent or Less" category, holding 3.35% of the class. That percentage is below common control thresholds and is presented as a passive ownership disclosure.

What powers does Acuitas claim over the shares in the filing?

The filing states 0 sole voting/dispositive power and 606,353 shared voting and shared dispositive power. This means decision authority is reported as shared, not sole.

When was the Schedule 13G/A signed and amended?

The amendment is labeled Amendment No. 3 and the form is signed by Lisa Thenell on 04/28/2026. The cover lists a 03/31/2026 date associated with the filing header.

What form was used to disclose Acuitas's holdings in RRGB?

Acuitas filed a Schedule 13G/A (an amendment) to report beneficial ownership of common stock, a routine disclosure for passive institutional holders owning 5% or less.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 3)

Red Robin Gourmet Burgers Inc

(Name of Issuer)

Common Stock, $0.001 par value per share

(Title of Class of Securities)

75689M101

(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): 75689M101

1

Names of Reporting Persons

Acuitas Investments, 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

WASHINGTON

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 606,353.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 606,353.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

606,353.00

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)

3.35 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Red Robin Gourmet Burgers Inc
(b)	Address of issuer's principal executive offices: 10000 East Geddes Avenue, Suite 500, Englewood, CO 80112
Item 2.
(a)	Name of person filing: Acuitas Investments, LLC
(b)	Address or principal business office or, if none, residence: 520 Pike Street, Suite 1221, Seattle, WA 98101
(c)	Citizenship: Washington
(d)	Title of class of securities: Common Stock, $0.001 par value per share
(e)	CUSIP No.: 75689M101
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: 606,353
(b)	Percent of class: 3.35 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 0
	(ii) Shared power to vote or to direct the vote: 606,353
	(iii) Sole power to dispose or to direct the disposition of: 0
	(iv) Shared power to dispose or to direct the disposition of: 606,353
Item 5.	Ownership of 5 Percent or Less of a Class.
	Ownership of 5 percent or less of a class
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
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.

Acuitas Investments, LLC

Signature:	Lisa Thenell
Name/Title:	Chief Compliance Officer
Date:	04/28/2026