MARSHALL WACE, LLP

Position in BBSI — Barrett Business Services Inc

CIK 1318757 LONDON, X0

Position in BBSI

as of Jun 30, 2026 · filed Aug 13, 2026 Compact

Position Value

$819,765

+$69,869 QoQ

Shares Held

23,079

-10.2% QoQ

Ownership

0.095%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

#84

of 197 holders

Holding Since

Dec 2021

5 quarters on record

Voting authority Sole 0% Shared 100% None 0%

Industrials · as of Jun 30, 2026

MARSHALL WACE, LLP holds $14,370,469 across 6 Staffing & Employment Services names. BBSI ranks #4 (5.7% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	KFY	Korn Ferry	72,475	$4,825,384
2	TNET	Trinet Group, Inc.	91,505	$4,528,581
3	KFRC	Kforce Inc	64,960	$3,047,923
4	BBSI	Barrett Business Services Inc This page	23,079	$819,765
5	RHI	Robert Half Inc.	26,298	$807,348
6	NSP	Insperity, Inc.	8,266	$341,468

5 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$819,765	23,079	-10.2%	Shares	Other	2026-08-13
2026-03-31	$749,896	25,699	+393.7%	Shares	Other	2026-05-15
2023-03-31	$461,371	5,205	-84.7%	Shares	Other	2023-05-15
2022-03-31	$2,629,176	33,938	+112.4%	Shares	Other	2022-05-16
2021-12-31	$1,103,302	15,976	—	Shares	Other	2022-02-14
No filing history on record for this holder in this stock.