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

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Fuller & Thaler Asset Management San Mateo, California $29.7B AUM 43.33% 1-Year Est. Return

First Trust Advisors Wheaton, Illinois $140B AUM 27.84% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

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

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

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

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

Oberweis Asset Management's PRIM Position: Q1 2026 in Review

Oberweis Asset Management increased its Primoris Services (PRIM) stake by 1.7% in Q1 2026, buying an estimated $410K and bringing the position to 166,100 shares worth $23.8M. The position accounts for 0.7% of the portfolio, ranked #44.

Oberweis Asset Management first reported a position in PRIM in Q3 2023 and has held it in 11 quarters since. The position peaked at $26.4M in Q3 2025. 508 funds tracked by Wall St. Rank hold PRIM as of Q1 2026.

Oberweis Asset Management held 166,100 shares of Primoris Services worth $23.8M as of Q1 2026.
Oberweis Asset Management bought 2,800 Primoris Services shares in Q1 2026, an estimated $410K.
Primoris Services made up 0.7% of Oberweis Asset Management's portfolio in Q1 2026, its #44 holding.
Oberweis Asset Management first reported a position in Primoris Services in Q3 2023 and has held it in 11 quarters since.
Oberweis Asset Management's Primoris Services position peaked at $26.4M in Q3 2025.
508 funds tracked by Wall St. Rank held Primoris Services as of Q1 2026.

Based on Oberweis Asset Management's 13F filing for Q1 2026, filed 15 May 2026.