William Blair Investment Management’s Primoris Services PRIM Stock Holding History

William Blair Investment Management’s Portfolio PRIM Stock Details PRIM Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$39.6M	Buy	+399,966	New	+$52.6M	0.12%	165

Other funds holding PRIM

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

First Trust Advisors Wheaton, Illinois $170B AUM 46.21% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Millennium Management New York $276B AUM 44.8% 1-Year Est. Return

SCA

Southpoint Capital Advisors New York $4.4B AUM 49.36% 1-Year Est. Return

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

William Blair Investment Management's PRIM Position: Q2 2026 in Review

William Blair Investment Management opened a new position in Primoris Services (PRIM) in Q2 2026: 399,966 shares worth $39.6M. The stake represents 0.12% of the portfolio and ranks #165 among its holdings.

449 funds tracked by Wall St. Rank hold PRIM as of Q2 2026.

William Blair Investment Management held 399,966 shares of Primoris Services worth $39.6M as of Q2 2026.
Primoris Services was a new William Blair Investment Management position in Q2 2026.
Primoris Services made up 0.12% of William Blair Investment Management's portfolio in Q2 2026, its #165 holding.
449 funds tracked by Wall St. Rank held Primoris Services as of Q2 2026.

Based on William Blair Investment Management's 13F filing for Q2 2026, filed 12 Aug 2026.