PRIMORIS SERVICES CORP (PRIM) Institutional Shareholders
PRIMORIS SERVICES CORP (PRIM) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended March 31, 2026. The institutional investors covered on this page collectively reported approximately $7.10B in PRIM holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of PRIM tracked by InsiderSet, reporting ownership valued at approximately $1.19B in its March 31, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $732.64M, representing an estimated loss of -38.59% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 57% of the total disclosed PRIM value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Vanguard Portfolio Management Llc, Fuller & Thaler Asset Management, Inc., and several other long-term asset managers with concentrated positions in PRIMORIS SERVICES CORP (PRIM).
This page ranks the largest institutional PRIM shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
467
Total Reported Value
$7.10B
Largest Holder
Blackrock, Inc.
Largest Position
$1.19B
Insider Transactions (90d)
18
Latest Filing Quarter
Q2 2026
New Institutional Positions
84
Funds Exiting Positions
1
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.02% | 8,340,660 | $1,193,047,952 | $732,643,574 | -$460,404,378 | -38.59% | |
| Vanguard Portfolio Management Llc | 0.03% | 3,653,916 | $522,656,145 | $320,959,981 | -$201,696,164 | -38.59% | |
| Fuller & Thaler Asset Management, Inc. | 1.43% | 2,966,901 | $424,385,459 | $260,612,584 | -$163,772,875 | -38.59% | |
| First Trust Advisors Lp | 0.29% | 2,886,163 | $412,836,755 | $253,520,558 | -$159,316,197 | -38.59% | |
| Vanguard Capital Management Llc | 0.01% | 2,335,748 | $334,105,394 | $205,172,104 | -$128,933,290 | -38.59% | |
| State Street Corp | 0.01% | 2,063,531 | $295,331,965 | $181,260,563 | -$114,071,402 | -38.62% | |
| Wellington Management Group Llp | 0.05% | 1,879,600 | $268,857,985 | $165,104,064 | -$103,753,921 | -38.59% | |
| Geode Capital Management, Llc | 0.01% | 1,456,181 | $208,327,271 | $127,910,939 | -$80,416,332 | -38.60% | |
| Invesco Ltd. | 0.03% | 1,396,747 | $199,790,690 | $122,690,256 | -$77,100,434 | -38.59% | |
| Dimensional Fund Advisors Lp | 0.03% | 1,159,121 | $165,769,705 | $101,817,189 | -$63,952,516 | -38.58% | |
| American Century Companies Inc | 0.08% | 1,078,124 | $154,214,857 | $94,702,412 | -$59,512,445 | -38.59% | |
| Westfield Capital Management Co Lp | 0.45% | 743,269 | $106,317,198 | $65,288,749 | -$41,028,449 | -38.59% | |
| Goldman Sachs Group Inc | 0.01% | 743,212 | $106,309,050 | $65,283,742 | -$41,025,308 | -38.59% | |
| Fmr Llc | 0.01% | 705,992 | $100,985,164 | $62,014,337 | -$38,970,827 | -38.59% | |
| Charles Schwab Investment Management Inc | 0.01% | 683,583 | $97,779,712 | $60,045,931 | -$37,733,781 | -38.59% | |
| Merewether Investment Management, Lp | 1.87% | 674,839 | $96,528,971 | $59,277,858 | -$37,251,113 | -38.59% | |
| Ubs Group Ag | 0.02% | 595,574 | $85,190,905 | $52,315,220 | -$32,875,685 | -38.59% | |
| Alliancebernstein L.P. | 0.03% | 683,386 | $84,835,538 | $60,028,626 | -$24,806,912 | -29.24% | |
| Morgan Stanley | 0.00% | 555,747 | $79,494,205 | $48,816,816 | -$30,677,389 | -38.59% | |
| Northern Trust Corp | 0.01% | 516,340 | $73,857,273 | $45,355,306 | -$28,501,967 | -38.59% | |
| Bruni J V & Co | 6.53% | 437,022 | $62,511,627 | $38,388,012 | -$24,123,615 | -38.59% | |
| Mirae Asset Global Etfs Holdings Ltd. | 0.08% | 423,008 | $60,502,260 | $37,157,023 | -$23,345,237 | -38.59% | |
| Federated Hermes, Inc. | 0.10% | 415,171 | $59,386,066 | $36,468,621 | -$22,917,445 | -38.59% | |
| Millennium Management Llc | 0.04% | 400,804 | $57,331,004 | $35,206,623 | -$22,124,381 | -38.59% | |
| Vanguard Fiduciary Trust Co | 0.01% | 372,331 | $53,258,226 | $32,705,555 | -$20,552,671 | -38.59% | |
| Bank Of New York Mellon Corp | 0.01% | 345,050 | $49,356,002 | $30,309,192 | -$19,046,810 | -38.59% | |
| Principal Financial Group Inc | 0.03% | 343,443 | $49,126,086 | $30,168,033 | -$18,958,053 | -38.59% | |
| Jacobs Levy Equity Management, Inc | 0.20% | 330,473 | $47,270,858 | $29,028,748 | -$18,242,110 | -38.59% | |
| Bank Of America Corp | 0.00% | 324,887 | $46,471,836 | $28,538,074 | -$17,933,762 | -38.59% | |
| D. E. Shaw & Co., Inc. | 0.04% | 311,126 | $44,503,463 | $27,329,308 | -$17,174,155 | -38.59% | |
| Mackenzie Financial Corp | 0.05% | 307,264 | $43,951,043 | $26,990,070 | -$16,960,973 | -38.59% | |
| Alyeska Investment Group, L.P. | 0.12% | 296,815 | $42,456,418 | $26,072,230 | -$16,384,188 | -38.59% | |
| Public Sector Pension Investment Board | 0.13% | 283,486 | $40,549,837 | $24,901,410 | -$15,648,427 | -38.59% | |
| Citadel Advisors Llc | 0.03% | 282,418 | $40,397,071 | $24,807,597 | -$15,589,474 | -38.59% | |
| Nuveen, Llc | 0.01% | 274,081 | $39,204,547 | $24,075,275 | -$15,129,272 | -38.59% | |
| Ameriprise Financial Inc | 0.01% | 271,541 | $38,841,982 | $23,852,161 | -$14,989,821 | -38.59% | |
| Hennessy Advisors Inc | 1.22% | 384,500 | $38,111,640 | $33,774,480 | -$4,337,160 | -11.38% | |
| Schroder Investment Management Group | 0.03% | 276,028 | $37,076,081 | $24,246,300 | -$12,829,781 | -34.60% | |
| Wells Fargo & Company/Mn | 0.01% | 242,970 | $34,754,442 | $21,342,485 | -$13,411,957 | -38.59% | |
| Vontobel Holding Ltd. | 0.11% | 337,666 | $33,469,455 | $29,660,581 | -$3,808,874 | -11.38% | |
| Raymond James Financial Inc | 0.01% | 216,088 | $29,780,822 | $18,981,170 | -$10,799,652 | -36.26% | |
| Oberweis Asset Management Inc/ | 0.70% | 166,100 | $23,758,944 | $14,590,224 | -$9,168,720 | -38.59% | |
| Allianz Asset Management Gmbh | 0.03% | 156,526 | $22,389,480 | $13,749,244 | -$8,640,236 | -38.59% | |
| State Of Wisconsin Investment Board | 0.05% | 154,672 | $22,124,283 | $13,586,388 | -$8,537,895 | -38.59% | |
| Rhumbline Advisers | 0.02% | 149,229 | $21,345,692 | $13,108,275 | -$8,237,417 | -38.59% | |
| Man Group Plc | 0.04% | 140,224 | $20,057,641 | $12,317,276 | -$7,740,365 | -38.59% | |
| Clark Capital Management Group, Inc. | 0.12% | 136,980 | $19,593,621 | $12,032,323 | -$7,561,298 | -38.59% | |
| Bridgewater Associates, Lp | 0.09% | 136,170 | $19,477,757 | $11,961,173 | -$7,516,584 | -38.59% | |
| Raiffeisen Bank International Ag | 0.23% | 198,000 | $19,253,520 | $17,392,320 | -$1,861,200 | -9.67% | |
| Legal & General Group Plc | 0.00% | 133,366 | $19,013,017 | $11,714,869 | -$7,298,148 | -38.39% |
Frequently asked questions about PRIM
Who owns the most PRIM stock?
The largest holders of PRIM are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for PRIMORIS SERVICES CORP (PRIM).
Is PRIM widely held by superinvestors?
Many widely followed stocks like PRIM appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly PRIM is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.