Campbell & Co Investment Adviser’s Barrett Business Services BBSI Stock Holding History

Campbell & Co Investment Adviser’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	$844K	Sell	28,919 -1,466	-5%	-$48.4K	0.05%	562
2025 Q4	$1.1M	Buy	30,385 +2,512	+9%	+$96.1K	0.05%	533
2025 Q3	$1.24M	Sell	27,873 -9,272	-25%	-$424K	0.09%	336
2025 Q2	$1.55M	Buy	37,145 +23,977	+182%	+$986K	0.1%	325
2025 Q1	$542K	Sell	13,168 -4,956	-27%	-$207K	0.04%	648
2024 Q4	$787K	Sell	18,124 -6,422	-26%	-$260K	0.06%	486
2024 Q3	$921K	Buy	24,546 +7,796	+47%	+$275K	0.07%	473
2024 Q2	$549K	Buy	16,750 +2,590	+18%	+$81.9K	0.05%	617
2024 Q1	$449K	Buy	14,160 +5,052	+55%	+$147K	0.04%	746
2023 Q4	$264K	Buy	+9,108	New	+$235K	0.02%	957

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

Campbell & Co Investment Adviser's BBSI Position: Q1 2026 in Review

Campbell & Co Investment Adviser reduced its Barrett Business Services (BBSI) stake by 4.8% in Q1 2026, selling an estimated $48.4K and leaving 28,919 shares worth $844K. The position accounts for 0.05% of the portfolio, ranked #562.

Campbell & Co Investment Adviser first reported a position in BBSI in Q4 2023 and has held it in 10 quarters since. The position peaked at $1.55M in Q2 2025. 191 funds tracked by Wall St. Rank hold BBSI as of Q1 2026.

Campbell & Co Investment Adviser held 28,919 shares of Barrett Business Services worth $844K as of Q1 2026.
Campbell & Co Investment Adviser sold 1,466 Barrett Business Services shares in Q1 2026, an estimated $48.4K.
Barrett Business Services made up 0.05% of Campbell & Co Investment Adviser's portfolio in Q1 2026, its #562 holding.
Campbell & Co Investment Adviser first reported a position in Barrett Business Services in Q4 2023 and has held it in 10 quarters since.
Campbell & Co Investment Adviser's Barrett Business Services position peaked at $1.55M in Q2 2025.
191 funds tracked by Wall St. Rank held Barrett Business Services as of Q1 2026.

Based on Campbell & Co Investment Adviser's 13F filing for Q1 2026, filed 15 May 2026.