Boston Partners
PRIM icon

Boston Partners’s Primoris Services PRIM Stock Holding History

Boston Partners’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 		– Sell
-420,475
Closed -$53.5M – 832
2025
Q4 		$53.5M Sell
420,475
-143,459
-25% -$18.7M 0.06% 260
2025
Q3 		$77.8M Sell
563,934
-964
-0.2% -$104K 0.08% 232
2025
Q2 		$47.8M Buy
564,898
+69,996
+14% +$4.74M 0.05% 253
2025
Q1 		$28.2M Sell
494,902
-1,800
-0.4% -$130K 0.03% 285
2024
Q4 		$39.2M Buy
496,702
+21,409
+5% +$1.56M 0.05% 261
2024
Q3 		$28.2M Sell
475,293
-22,175
-4% -$1.18M 0.03% 291
2024
Q2 		$25.1M Sell
497,468
-39,825
-7% -$1.97M 0.03% 300
2024
Q1 		$23.3M Buy
537,293
+28,997
+6% +$1.07M 0.03% 308
2023
Q4 		$16.9M Sell
508,296
-16,471
-3% -$514K 0.02% 346
2023
Q3 		$16.9M Buy
524,767
+78,922
+18% +$2.58M 0.02% 326
2023
Q2 		$13.7M Buy
+445,845
New +$11.9M 0.02% 342
2022
Q3 		– Sell
-37,996
Closed -$827K – 750
2022
Q2 		$827K Hold
37,996
– – ﹤0.01% 541
2022
Q1 		$905K Buy
37,996
+6,893
+22% +$177K ﹤0.01% 556
2021
Q4 		$746K Hold
31,103
– – ﹤0.01% 569
2021
Q3 		$762K Sell
31,103
-4,481
-13% -$120K ﹤0.01% 561
2021
Q2 		$1.05M Sell
35,584
-1,244
-3% -$40.1K ﹤0.01% 533
2021
Q1 		$1.22M Buy
+36,828
New +$1.21M ﹤0.01% 553
2016
Q4 		– Sell
-75,053
Closed -$1.55M – 764
2016
Q3 		$1.55M Sell
75,053
-217,577
-74% -$4.11M ﹤0.01% 675
2016
Q2 		$5.54M Sell
292,630
-43,010
-13% -$929K 0.01% 473
2016
Q1 		$8.16M Sell
335,640
-24,937
-7% -$532K 0.01% 403
2015
Q4 		$7.94M Sell
360,577
-190
-0.1% -$4.04K 0.01% 420
2015
Q3 		$6.46M Sell
360,767
-162,963
-31% -$2.93M 0.01% 445
2015
Q2 		$10.4M Sell
523,730
-85,170
-14% -$1.63M 0.01% 389
2015
Q1 		$10.5M Buy
608,900
+443,470
+268% +$8.66M 0.02% 400
2014
Q4 		$3.85M Buy
+165,430
New +$4.14M 0.01% 570

Other funds holding PRIM

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Fuller & Thaler Asset Management
Fuller & Thaler Asset Management San Mateo, California $36.7B AUM 74.15% 1-Year Est. Return
First Trust Advisors
First Trust Advisors Wheaton, Illinois $170B AUM 46.21% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Boston Partners's PRIM Position: Q1 2026 in Review

Boston Partners sold out of Primoris Services (PRIM) in Q1 2026, closing a stake of 420,475 shares — an estimated $53.5M sold.

Boston Partners first reported a position in PRIM in Q4 2014 and held it in 25 quarters. The position peaked at $77.8M in Q3 2025. 511 funds tracked by Wall St. Rank hold PRIM as of Q1 2026.

  • Boston Partners reported no remaining Primoris Services position as of Q1 2026 after selling out during the quarter.
  • Boston Partners sold 420,475 Primoris Services shares in Q1 2026, an estimated $53.5M.
  • Boston Partners first reported a position in Primoris Services in Q4 2014 and held it in 25 quarters.
  • Boston Partners's Primoris Services position peaked at $77.8M in Q3 2025.
  • 511 funds tracked by Wall St. Rank held Primoris Services as of Q1 2026.

Based on Boston Partners's 13F filing for Q1 2026, filed 11 May 2026.