Marshall Wace’s Barrett Business Services BBSI Stock Holding History

Marshall Wace’s Portfolio BBSI Stock Details BBSI Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$750K	Buy	+25,699	New	+$849K	﹤0.01%	2274
2023 Q2	–	Sell	-20,820	Closed	-$461K	–	2466
2023 Q1	$461K	Buy	+20,820	New	+$486K	﹤0.01%	2142
2022 Q2	–	Sell	-135,752	Closed	-$2.63M	–	3416
2022 Q1	$2.63M	Buy	135,752 +71,848	+112%	+$1.21M	0.01%	1881
2021 Q4	$1.1M	Buy	+63,904	New	+$1.21M	﹤0.01%	2429
2019 Q3	–	Sell	-96,812	Closed	-$2M	–	1664
2019 Q2	$2M	Sell	96,812 -197,880	-67%	-$3.83M	0.02%	766
2019 Q1	$5.7M	Buy	294,692 +144,640	+96%	+$2.51M	0.05%	434
2018 Q4	$2.15M	Buy	+150,052	New	+$2.43M	0.02%	704
2015 Q3	–	Sell	-38,036	Closed	-$345K	–	910
2015 Q2	$345K	Buy	+38,036	New	+$384K	﹤0.01%	763
2014 Q4	–	Sell	-108,964	Closed	-$1.08M	–	815
2014 Q3	$1.08M	Sell	108,964 -130,188	-54%	-$1.77M	0.02%	543
2014 Q2	$2.81M	Buy	239,152 +56,408	+31%	+$714K	0.04%	341
2014 Q1	$2.72M	Buy	+182,744	New	+$3.4M	0.05%	312

Other funds holding BBSI

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Thrivent Financial for Lutherans Minneapolis, Minnesota $52.5B AUM 27.12% 1-Year Est. Return

Mawer Investment Management Calgary, Alberta, Canada $15.4B AUM 10.9% 1-Year Est. Return

Royce & Associates New York $10.1B AUM 42.88% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

PCMF

Private Capital Management (Florida) Naples, Florida $1B AUM 15.98% 1-Year Est. Return

Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return

Trigran Investments Northbrook, Illinois $418M AUM 3.34% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Marshall Wace's BBSI Position: Q1 2026 in Review

Marshall Wace opened a new position in Barrett Business Services (BBSI) in Q1 2026: 25,699 shares worth $750K. The stake represents ﹤0.01% of the portfolio and ranks #2274 among its holdings. This is a return to the name: Marshall Wace previously reported a position in BBSI as recently as Q1 2023.

Marshall Wace first reported a position in BBSI in Q1 2014 and has held it in 11 quarters since. The position peaked at $5.7M in Q1 2019. 191 funds tracked by Wall St. Rank hold BBSI as of Q1 2026.

Marshall Wace held 25,699 shares of Barrett Business Services worth $750K as of Q1 2026.
Barrett Business Services was a new Marshall Wace position in Q1 2026.
Barrett Business Services made up ﹤0.01% of Marshall Wace's portfolio in Q1 2026, its #2274 holding.
Marshall Wace first reported a position in Barrett Business Services in Q1 2014 and has held it in 11 quarters since.
Marshall Wace's Barrett Business Services position peaked at $5.7M in Q1 2019.
191 funds tracked by Wall St. Rank held Barrett Business Services as of Q1 2026.

Based on Marshall Wace's 13F filing for Q1 2026, filed 15 May 2026.