Oberweis Asset Management’s Primoris Services PRIM Stock Holding History

Oberweis Asset 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	–	Sell	-166,100	Closed	-$23.8M	–	193
2026 Q1	$23.8M	Buy	166,100 +2,800	+2%	+$410K	0.7%	44
2025 Q4	$20.3M	Sell	163,300 -29,100	-15%	-$3.8M	0.74%	50
2025 Q3	$26.4M	Hold	192,400	–	–	1.01%	21
2025 Q2	$15M	Sell	192,400 -50,500	-21%	-$3.42M	0.65%	61
2025 Q1	$13.9M	Hold	242,900	–	–	0.7%	54
2024 Q4	$18.6M	Buy	242,900 +33,000	+16%	+$2.41M	0.87%	32
2024 Q3	$12.2M	Hold	209,900	–	–	0.62%	58
2024 Q2	$10.5M	Hold	209,900	–	–	0.64%	54
2024 Q1	$8.94M	Hold	209,900	–	–	0.65%	57
2023 Q4	$6.97M	Buy	209,900 +31,300	+18%	+$976K	0.65%	48
2023 Q3	$5.85M	Buy	+178,600	New	+$5.84M	0.62%	46

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

Oberweis Asset Management's PRIM Position: Q2 2026 in Review

Oberweis Asset Management sold out of Primoris Services (PRIM) in Q2 2026, closing a stake of 166,100 shares — an estimated $23.8M sold.

Oberweis Asset Management first reported a position in PRIM in Q3 2023 and held it in 11 quarters. The position peaked at $26.4M in Q3 2025. 449 funds tracked by Wall St. Rank hold PRIM as of Q2 2026.

Oberweis Asset Management reported no remaining Primoris Services position as of Q2 2026 after selling out during the quarter.
Oberweis Asset Management sold 166,100 Primoris Services shares in Q2 2026, an estimated $23.8M.
Oberweis Asset Management first reported a position in Primoris Services in Q3 2023 and held it in 11 quarters.
Oberweis Asset Management's Primoris Services position peaked at $26.4M in Q3 2025.
449 funds tracked by Wall St. Rank held Primoris Services as of Q2 2026.

Based on Oberweis Asset Management's 13F filing for Q2 2026, filed 14 Aug 2026.