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Equibles

PRIM

Primoris Services Corp

Company with tickers: PRIM

CIK
1361538
CUSIP
74164F103
Shares Outstanding
54,254,935
13F Activity (30d)
279 filings 274 filers

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 510
Total Value: $7,924,681,030
Total Shares: 55,401,855
Showing 1–100 of 520 holdings by value · page 1 of 6

Institutional Ownership Trend

25 quarters

Holder Concentration

Across 510 13F filers · Δ vs Dec 31, 2025
Top Holder
15.1%
Jun 2023 → Mar 2026 · range 5.7% – 15.1%
+0.4 pts
Top 5
36.4%
Jun 2023 → Mar 2026 · range 24.3% – 41.6%
−2.0 pts
Top 10
50.8%
Jun 2023 → Mar 2026 · range 37.8% – 58.4%
+1.0 pts
HHI
422
Jun 2023 → Mar 2026 · range 219 – 464
Broadly held−39

Quarterly Activity

vs Dec 31, 2025
New
100
Increased
165
Decreased
187
Sold Out
71
Unchanged
58
Holder count: +29
Institutional value: +12.7%
Shares held: -2.2%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds Open
Mega FIRST TRUST ADVISORS LP +928,155 2,886,163
Mega MILLENNIUM MANAGEMENT LLC +399,037 400,804
Mega Invesco Ltd. +338,469 1,396,747
Mega PRICE T ROWE ASSOCIATES INC /MD/ +179,978 714,521
Mega CITADEL ADVISORS LLC +142,309 315,418

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds Open
Large Qube Research & Technologies Ltd −293,129 34,506
Mega D. E. Shaw & Co., Inc. −280,171 311,126
Large WESTFIELD CAPITAL MANAGEMENT CO LP −208,927 743,269
Large JACOBS LEVY EQUITY MANAGEMENT, INC −207,872 330,473
Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP −163,301 28,305

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD) Open
Mega VANGUARD PORTFOLIO MANAGEMENT LLC 3,653,916 $522,656,144
Mega VANGUARD CAPITAL MANAGEMENT LLC 2,335,748 $334,105,393
Mega VANGUARD FIDUCIARY TRUST CO 372,331 $53,258,226
Large Alyeska Investment Group, L.P. 296,815 $42,456,417
Large WCM INVESTMENT MANAGEMENT, LLC 124,224 $17,769,000

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD) Open
Mega VANGUARD GROUP INC 6,479,466 $804,360,907
Mega NORGES BANK 832,676 $103,368,398
Large Boston Partners 420,475 $52,197,766
Mid Encompass Capital Advisors LLC 289,907 $35,989,054
Small Incline Global Management LLC 117,162 $14,544,490
Filter: New 100 Increased 165 Reduced 187 Sold out 71 Unchanged 58
Showing 100 of 520
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Open
Mega BlackRock, Inc. $1,193,047,998 15.05% 8,340,660
Mega VANGUARD PORTFOLIO MANAGEMENT LLC $522,656,144 6.60% 3,653,916
Large FULLER & THALER ASSET MANAGEMENT, INC. $424,385,519 5.36% 2,966,901
Mega FIRST TRUST ADVISORS LP $412,836,755 5.21% 2,886,163
Mega VANGUARD CAPITAL MANAGEMENT LLC $334,105,393 4.22% 2,335,748
Mega STATE STREET CORP $295,167,474 3.72% 2,063,531
Mega WELLINGTON MANAGEMENT GROUP LLP $268,857,980 3.39% 1,879,600
Mega GEODE CAPITAL MANAGEMENT, LLC $208,292,129 2.63% 1,456,181
Mega Invesco Ltd. $199,790,686 2.52% 1,396,747
Mega DIMENSIONAL FUND ADVISORS LP $165,800,666 2.09% 1,159,121
Mega AMERICAN CENTURY COMPANIES INC $154,214,856 1.95% 1,078,124
Mid Artemis Investment Management LLP $125,815,123 1.59% 879,580
Large CONGRESS ASSET MANAGEMENT CO $117,020,451 1.48% 818,096
Large WESTFIELD CAPITAL MANAGEMENT CO LP $106,317,197 1.34% 743,269
Mega GOLDMAN SACHS GROUP INC $106,309,043 1.34% 743,212
Mega PRICE T ROWE ASSOCIATES INC /MD/ $102,205,082 1.29% 714,521
Mega FMR LLC $100,985,094 1.27% 705,992
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $97,779,712 1.23% 683,583
Mega ALLIANCEBERNSTEIN L.P. $97,751,533 1.23% 683,386
Mid Merewether Investment Management, LP $96,528,970 1.22% 674,839
Mega JPMORGAN CHASE & CO $87,679,655 1.11% 612,973
Mega UBS Group AG $85,190,903 1.08% 595,574
Mega MORGAN STANLEY $79,494,047 1.00% 555,747
Mega NORTHERN TRUST CORP Bank $73,857,271 0.93% 516,340
Mid Van Berkom & Associates Inc. $66,167,872 0.83% 462,583
Small BRUNI J V & CO /CO $62,511,626 0.79% 437,022
Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. Mutual Fund $60,507,064 0.76% 423,008
Large FEDERATED HERMES, INC. $59,386,059 0.75% 415,171
Mega MILLENNIUM MANAGEMENT LLC $57,331,004 0.72% 400,804
Small VALUE HOLDINGS MANAGEMENT CO. LLC $57,136,326 0.72% 399,443
Mega VANGUARD FIDUCIARY TRUST CO Bank $53,258,226 0.67% 372,331
Mega MASSACHUSETTS FINANCIAL SERVICES CO /MA/ $52,114,905 0.66% 364,338
Mega RAYMOND JAMES FINANCIAL INC $49,589,820 0.63% 346,685
Mega Bank of New York Mellon Corp Bank $49,355,948 0.62% 345,050
Mega PRINCIPAL FINANCIAL GROUP INC $49,126,085 0.62% 343,443
Large JACOBS LEVY EQUITY MANAGEMENT, INC $47,270,857 0.60% 330,473
Mega BANK OF AMERICA CORP /DE/ Bank $46,471,834 0.59% 324,887
Mid HENNESSY ADVISORS INC $44,728,608 0.56% 312,700
Mega D. E. Shaw & Co., Inc. $44,503,462 0.56% 311,126
Large MACKENZIE FINANCIAL CORP $43,951,042 0.55% 307,264
Large Alyeska Investment Group, L.P. $42,456,417 0.54% 296,815
Large Public Sector Pension Investment Board Pension $40,549,837 0.51% 283,486
Mega CITADEL ADVISORS LLC $40,397,070 0.51% 282,418
Mega SCHRODER INVESTMENT MANAGEMENT GROUP $39,483,045 0.50% 276,028
Mega Nuveen, LLC $39,204,545 0.49% 274,081
Mega AMERIPRISE FINANCIAL INC $38,841,224 0.49% 271,541
Mid ALGERT GLOBAL LLC $36,799,185 0.46% 257,265
Mega WELLS FARGO & COMPANY/MN $34,754,427 0.44% 242,970
Large GW&K Investment Management, LLC $27,466,254 0.35% 192,018
Large Swedbank AB Bank $27,177,600 0.34% 190,000
Mid OBERWEIS ASSET MANAGEMENT INC/ $23,758,944 0.30% 166,100
Large Allianz Asset Management GmbH $22,389,478 0.28% 156,526
Large STATE OF WISCONSIN INVESTMENT BOARD $22,124,282 0.28% 154,672
Mid CUSHING ASSET MANAGEMENT, LP dba NXG INVESTMENT MANAGEMENT $21,742,080 0.27% 152,000
Mega RHUMBLINE ADVISERS $21,345,716 0.27% 149,229
Large Man Group plc $20,057,640 0.25% 140,224
Large Clark Capital Management Group, Inc. $19,593,619 0.25% 136,980
Large Bridgewater Associates, LP $19,477,756 0.25% 136,170
Mega Legal & General Group Plc $19,076,671 0.24% 133,366
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $18,886,709 0.24% 132,038
Mid Portolan Capital Management, LLC $18,684,743 0.24% 130,626
Large WCM INVESTMENT MANAGEMENT, LLC $17,769,000 0.22% 124,224
Mid SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC $17,593,920 0.22% 123,000
Mid Aptus Capital Advisors, LLC $17,508,096 0.22% 122,400
Small KR Capital LP $16,815,353 0.21% 117,557
Mega VICTORY CAPITAL MANAGEMENT INC $16,157,798 0.20% 112,960
Mid Munro Partners $16,044,796 0.20% 112,170
Mega AQR CAPITAL MANAGEMENT LLC $16,028,202 0.20% 112,054
Small Grandeur Peak Global Advisors, LLC $15,729,679 0.20% 109,967
Mega Swiss National Bank Bank $15,290,976 0.19% 106,900
Mid SEGALL BRYANT & HAMILL, LLC $15,273,954 0.19% 106,781
Large LAZARD ASSET MANAGEMENT LLC $14,681,482 0.19% 102,639
Small THAMES CAPITAL MANAGEMENT LLC $14,304,715 0.18% 100,005
Mega California Public Employees Retirement System Pension $14,211,453 0.18% 99,353
Large MERCER GLOBAL ADVISORS INC /ADV $13,918,650 0.18% 97,306
Mid Ceredex Value Advisors LLC $13,821,240 0.17% 96,625
Mid ROYCE & ASSOCIATES LP $13,738,992 0.17% 96,050
Large VOLORIDGE INVESTMENT MANAGEMENT, LLC $13,680,059 0.17% 95,638
Large OSAIC HOLDINGS, INC. $13,315,306 0.17% 93,088
Mid Dana Investment Advisors, Inc. $12,652,174 0.16% 88,452
Large BNP PARIBAS ASSET MANAGEMENT Holding S.A. $12,507,989 0.16% 87,444
Mega DEUTSCHE BANK AG\ Bank $11,011,216 0.14% 76,980
Micro Bolthouse Investments, LLC $10,728,000 0.14% 75,000
Mid COOKSON PEIRCE & CO INC $10,723,708 0.14% 74,970
Mid Advisors Asset Management, Inc. $10,553,777 0.13% 73,782
Mid PICTON MAHONEY ASSET MANAGEMENT $10,110,210 0.13% 70,681
Mega NEUBERGER BERMAN GROUP LLC $10,059,144 0.13% 70,324
Mega Clearbridge Investments, LLC $10,025,673 0.13% 70,090
Mega FRANKLIN RESOURCES INC $9,981,042 0.13% 69,778
Mega ENVESTNET ASSET MANAGEMENT INC $9,925,116 0.13% 69,387
Mid Susquehanna Portfolio Strategies, LLC $9,891,931 0.12% 69,155
Large SILVERCREST ASSET MANAGEMENT GROUP LLC $9,603,276 0.12% 67,137
Mid RENAISSANCE GROUP LLC $9,538,765 0.12% 66,686
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Pension $8,980,051 0.11% 62,780
Mid Vest Financial, LLC $8,952,301 0.11% 62,586
Large Russell Investments Group, Ltd. $8,862,325 0.11% 61,957
Large PRUDENTIAL FINANCIAL INC $8,807,831 0.11% 61,576
Mid HEARTLAND ADVISORS INC $8,582,400 0.11% 60,000
Large Walleye Capital LLC $8,211,068 0.10% 57,404
Large SEI INVESTMENTS CO $8,132,682 0.10% 56,856

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