Mawer Investment reports 1.70M Barrett Business Services stake (BBSI)

Rhea-AI Filing Summary

Barrett Business Services Inc. filing shows Mawer Investment Management Ltd. reports beneficial ownership of 1,701,812 shares of Common Stock, representing 6.75% of the class.

The filing cites an outstanding share base of 25,203,090 Common Stock as of February 11, 2026 (per the issuer's 10-K). The reporting person states sole voting and dispositive power over the reported shares.

Insights

Institutional Ownership Analyst

Mawer holds a mid-single-digit stake in Barrett Business Services.

Mawer Investment Management Ltd. reports beneficial ownership of 1,701,812 shares, or 6.75%, with sole voting and dispositive power. The filing references outstanding shares of 25,203,090 as of February 11, 2026, which frames the stake size.

The holder's position is typical of an active institutional investor; any market or strategic impact depends on Mawer’s trading decisions and disclosures in future filings.

Corporate Governance Specialist

Disclosure aligns with passive investor reporting under Schedule 13G/A standards.

The filing is an amendment to a Schedule 13G and lists sole voting and sole dispositive power for the full 1,701,812 shares. It cites the issuer's 10-K for the outstanding share figure, preserving traceability to the stated base.

Because the filing is an ownership disclosure, governance implications hinge on whether Mawer changes its intent or files a different schedule; further filings would clarify any activist or control intent.

Key Figures

Beneficial ownership: 1,701,812 shares Percent of class: 6.75% Shares outstanding: 25,203,090 Common Stock

3 metrics

Beneficial ownership 1,701,812 shares Amount reported by Mawer Investment Management Ltd.

Percent of class 6.75% Calculated using outstanding shares cited in the filing

Shares outstanding 25,203,090 Common Stock Outstanding as of <date>February 11, 2026</date> per issuer 10-K

Key Terms

Beneficially owned, Sole Dispositive Power, Schedule 13G/A

3 terms

Beneficially owned regulatory

"Amount beneficially owned: 1,701,812"

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 Dispositive Power regulatory

"Sole power to dispose or to direct the disposition of: 1,701,812"

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.

Schedule 13G/A regulatory

"This document is labeled (Amendment No. 2) and is a Schedule 13G/A filing"

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.

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

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Accepted by SEC EDGAR 05/12/2026 - 03:57 PM Learn about SEC filing dates

FAQ

How many Barrett Business Services (BBSI) shares does Mawer hold?

Mawer Investment Management Ltd. holds 1,701,812 shares of Barrett Business Services. This position represents 6.75% of the company's common stock, as stated in the Schedule 13G/A filing.

What is the ownership percentage reported for BBSI in this filing?

The filing reports a beneficial ownership stake of 6.75% in Barrett Business Services. The percentage is calculated using the cited outstanding share count of 25,203,090 Common Stock as of February 11, 2026.

Does Mawer have voting or dispositive power over the reported BBSI shares?

Yes. The Schedule 13G/A states Mawer has sole voting power and sole dispositive power for all 1,701,812 shares reported in the filing, indicating direct control over vote and disposition decisions.

What outstanding share base does the filing use to calculate the percentage?

The filing cites 25,203,090 Common Stock outstanding as of February 11, 2026, per Barrett Business Services' 10-K. That figure is the basis for the reported 6.75% ownership percentage.

Is this Schedule 13G/A an initial filing or an amendment?

This document is labeled Amendment No. 2 to a Schedule 13G, indicating it amends earlier beneficial ownership disclosures for Mawer Investment Management Ltd.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 2)

Barrett Business Services Inc

(Name of Issuer)

Common Stock

(Title of Class of Securities)

068463108

(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): 068463108

1

Names of Reporting Persons

Mawer Investment Management Ltd.

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

ALBERTA, CANADA

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 1,701,812.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 1,701,812.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,701,812.00

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)

6.75 %

12

Type of Reporting Person (See Instructions)

IA

Comment for Type of Reporting Person: Based upon 25,203,090 Common Stock of Barrett Business Services Inc. (the "Issuer") outstanding as of February 11, 2026, as reported in the Issuer's 10-K filed with the Securities and Exchange Commission on February 26, 2026.

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Barrett Business Services Inc
(b)	Address of issuer's principal executive offices: 8100 NE Parkway Drive, Suite 200, Vancouver, Washington, 98662
Item 2.
(a)	Name of person filing: Mawer Investment Management Ltd.
(b)	Address or principal business office or, if none, residence: 600, 517 - 10th Avenue SW Calgary, Alberta, Canada T2R 0A8
(c)	Citizenship: Canada
(d)	Title of class of securities: Common Stock
(e)	CUSIP No.: 068463108
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: 1,701,812
(b)	Percent of class: 6.75%
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 1,701,812
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 1,701,812
	(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.
	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.

Mawer Investment Management Ltd.

Signature:	/s/ John Wilson
Name/Title:	John Wilson, Portfolio Manager
Date:	05/01/2026