Jane Street’s Primoris Services PRIM Stock Holding History

Jane Street’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	$22.6M	Buy	228,400 +205,300	+889%	+$27M	﹤0.01%	2038
2026 Q1	$3.3M	Buy	23,100 +6,100	+36%	+$893K	﹤0.01%	4168
2025 Q4	$2.11M	Sell	17,000 -3,800	-18%	-$496K	﹤0.01%	4718
2025 Q3	$2.86M	Sell	20,800 -3,500	-14%	-$376K	﹤0.01%	4309
2025 Q2	$1.89M	Buy	24,300 +19,000	+358%	+$1.29M	﹤0.01%	4506
2025 Q1	$304K	Sell	5,300 -7,600	-59%	-$550K	﹤0.01%	7775
2024 Q4	$986K	Buy	+12,900	New	+$942K	﹤0.01%	5419
2024 Q3	–	Sell	-10,300	Closed	-$514K	–	10232
2024 Q2	$514K	Buy	+10,300	New	+$510K	﹤0.01%	6981
2023 Q2	–	Sell	-9,100	Closed	-$224K	–	9392
2023 Q1	$224K	Buy	+9,100	New	+$230K	﹤0.01%	7674
2022 Q3	–	Sell	-36,000	Closed	-$783K	–	10278
2022 Q2	$783K	Buy	+36,000	New	+$867K	﹤0.01%	5934
2021 Q3	–	Sell	-11,700	Closed	-$344K	–	10554
2021 Q2	$344K	Buy	+11,700	New	+$377K	﹤0.01%	7917

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

Jane Street's PRIM Position: Q2 2026 in Review

Jane Street sold out of Primoris Services (PRIM) in Q2 2026, closing a stake of 2,215 shares — an estimated $291K sold.

Jane Street first reported a position in PRIM in Q3 2013 and held it in 23 quarters. The position peaked at $12.5M in Q1 2025. 449 funds tracked by Wall St. Rank hold PRIM as of Q2 2026.

Jane Street reported no remaining Primoris Services position as of Q2 2026 after selling out during the quarter.
Jane Street sold 2,215 Primoris Services shares in Q2 2026, an estimated $291K.
Jane Street first reported a position in Primoris Services in Q3 2013 and held it in 23 quarters.
Jane Street's Primoris Services position peaked at $12.5M in Q1 2025.
449 funds tracked by Wall St. Rank held Primoris Services as of Q2 2026.

Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.