Primoris Services Corporation
US ˙ NYSE ˙ US74164F1030

SecurityPRIM / Primoris Services Corporation
InstitutionNorthern Trust Corp
Latest Disclosed Ownership516,340 shares
Latest Disclosed Value $ 73,857,273
Northern Trust Corp reports 2.87% increase in ownership of PRIM / Primoris Services Corporation

On May 14, 2026 - Northern Trust Corp filed a 13F-HR form disclosing ownership of 516,340 shares of Primoris Services Corporation (US:PRIM) valued at $73,857,274 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 501,953 shares of Primoris Services Corporation. This represents a change in shares of 2.87% during the quarter. The current value of the position is $65,224,069 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F PRIMORIS SVCS COM 74164F103 516,340 14,387 2.87 73,857 18.53 0.0020
2026-02-17 2025-12-31 13F PRIMORIS SVCS COM 74164F103 501,953 14,513 2.98 62,312 -6.91 0.0079
2025-11-14 2025-09-30 13F PRIMORIS SVCS COM 74164F103 487,440 -6,681 -1.35 66,940 73.82 0.0086
2025-08-13 2025-06-30 13F PRIMORIS SVCS COM 74164F103 494,121 -11,558 -2.29 38,512 32.65 0.0053
2025-05-13 2025-03-31 13F PRIMORIS SVCS COM 74164F103 505,679 -39,630 -7.27 29,031 -30.32 0.0043
2025-02-14 2024-12-31 13F PRIMORIS SVCS COM 74164F103 545,309 52,168 10.58 41,662 45.46 0.0059
2024-11-13 2024-09-30 13F PRIMORIS SVCS COM 74164F103 493,141 26,125 5.59 28,642 22.93 0.0047
2024-08-14 2024-06-30 13F PRIMORIS SVCS COM 74164F103 467,016 -68,474 -12.79 23,299 2.21 0.0039
2024-05-14 2024-03-31 13F PRIMORIS SVCS COM 74164F103 535,490 -104,239 -16.29 22,796 7.30 0.0039
2024-02-13 2023-12-31 13F PRIMORIS SVCS COM 74164F103 639,729 39,788 6.63 21,245 8.19 0.0038
2023-11-13 2023-09-30 13F PRIMORIS SVCS COM 74164F103 599,941 8,082 1.37 19,636 8.89 0.0038
2023-08-11 2023-06-30 13F PRIMORIS SVCS COM 74164F103 591,859 6,780 1.16 18,034 24.99 0.0035
2023-05-15 2023-03-31 13F PRIMORIS SVCS COM 74164F103 585,079 -3,250 -0.55 14,428 11.78 0.0029
2023-02-13 2022-12-31 13F PRIMORIS SVCS COM 74164F103 588,329 -4,020 -0.68 12,908 34.10 0.0027
2022-11-14 2022-09-30 13F PRIMORIS SVCS COM 74164F103 592,349 -20,463 -3.34 9,625 -27.82 0.0022
2022-08-12 2022-06-30 13F PRIMORIS SVCS COM 74164F103 612,812 -42,610 -6.50 13,334 -14.60 0.0029
2022-05-13 2022-03-31 13F PRIMORIS SVCS COM 74164F103 655,422 -14,753 -2.20 15,613 -2.86 0.0027
2022-02-08 2021-12-31 13F PRIMORIS SVCS COM 74164F103 670,175 -13,317 -1.95 16,072 -3.98 0.0026
2021-11-15 2021-09-30 13F PRIMORIS SVCS COM 74164F103 683,492 12,130 1.81 16,738 -15.28 0.0030
2021-08-13 2021-06-30 13F PRIMORIS SVCS COM 74164F103 671,362 22,907 3.53 19,758 -8.03 0.0035
2021-05-12 2021-03-31 13F PRIMORIS SVCS COM 74164F103 648,455 -132,823 -17.00 21,483 -0.41 0.0040
2021-02-11 2020-12-31 13F PRIMORIS SVCS COM 74164F103 781,278 -21,257 -2.65 21,571 48.99 0.0042
2020-11-16 2020-09-30 13F PRIMORIS SVCS COM 74164F103 802,535 -27,675 -3.33 14,478 -1.80 0.0032
2020-08-14 2020-06-30 13F PRIMORIS SVCS COM 74164F103 830,210 215,758 35.11 14,744 50.91 0.0035
2020-05-14 2020-03-31 13F PRIMORIS SVCS COM 74164F103 614,452 -24,961 -3.90 9,770 -31.29 0.0028
2020-02-14 2019-12-31 13F PRIMORIS SVCS COM 74164F103 639,413 -85,674 -11.82 14,220 0.01 0.0032
2019-11-13 2019-09-30 13F PRIMORIS SVCS COM 74164F103 725,087 -1,363 -0.19 14,219 -6.48 0.0034
2019-08-13 2019-06-30 13F PRIMORIS SVCS COM 74164F103 726,450 4,024 0.56 15,204 1.77 0.0036
2019-05-13 2019-03-31 13F PRIMORIS SVCS COM 74164F103 722,426 -6,567 -0.90 14,940 7.13 0.0037
2019-02-12 2018-12-31 13F PRIMORIS SVCS COM 74164F103 728,993 3,808 0.53 13,946 -22.52 0.0039
2018-11-14 2018-09-30 13F PRIMORIS SVCS COM 74164F103 725,185 68,127 10.37 18,000 0.60 0.0044
2018-09-18 2018-06-30 13F/A-1 PRIMORIS SVCS COM 74164F103 657,058 136,157 26.14 17,892 37.50 0.0045
2018-08-14 2018-06-30 13F PRIMORIS SVCS COM 74164F103 660,429 139,528 17,983
2018-05-09 2018-03-31 13F PRIMORIS SVCS COM 74164F103 520,901 22,316 4.48 13,012 -4.02 0.0034
2018-02-14 2017-12-31 13F PRIMORIS SVCS COM 74164F103 498,585 -7,220 -1.43 13,557 -8.89 0.0034
2017-11-13 2017-09-30 13F PRIMORIS SVCS COM 74164F103 505,805 -10,385 -2.01 14,880 15.58 0.0039
2017-08-11 2017-06-30 13F PRIMORIS SVCS COM 74164F103 516,190 1,657 0.32 12,874 7.75 0.0036
2017-05-12 2017-03-31 13F PRIMORIS SVCS COM 74164F103 514,533 4,142 0.81 11,948 2.77 0.0034
2017-02-13 2016-12-31 13F PRIMORIS SVCS COM 74164F103 510,391 21,387 4.37 11,626 15.42 0.0036
2016-11-09 2016-09-30 13F PRIMORIS SVCS COM 74164F103 489,004 -2,032 -0.41 10,073 8.37 0.0031
2016-08-12 2016-06-30 13F PRIMORIS SVCS COM 74164F103 491,036 34,121 7.47 9,295 -15.68 0.0030
2016-08-19 2016-03-31 13F/A-1 PRIMORIS SVCS COM 74164F103 456,915 7,299 1.62 11,023 11.29 0.0037
2016-05-13 2016-03-31 13F Primoris Svcs COMM 74164F103 456,915 11,104
2016-02-12 2015-12-31 13F Primoris Svcs COMM 74164F103 449,616 15,922 3.67 9,905 27.51 0.0033
2015-11-12 2015-09-30 13F Primoris Svcs COMM 74164F103 433,694 433,694 0.00 7,768 0.0026
2015-08-13 2015-06-30 13F Primoris Svcs COMM 74164F103 0 -477,840 -100.00 0 -100.00
2015-05-14 2015-03-31 13F Primoris Svcs COMM 74164F103 477,840 -3,753 -0.78 8,214 -26.61 0.0025
2015-02-12 2014-12-31 13F Primoris Svcs COM 74164F103 481,593 -1,331 -0.28 11,193 -13.65 0.0034
2014-11-13 2014-09-30 13F Primoris Svcs COMM 74164F103 482,924 7,347 1.54 12,962 -5.49 0.0041
2014-08-14 2014-06-30 13F PRIMORIS SVCS com 74164F103 475,577 -31,170 -6.15 13,715 -9.72 0.0043
2014-05-14 2014-03-31 13F PRIMORIS SVCS COMM 74164F103 506,747 -29,137 -5.44 15,192 -8.93 0.0048
2014-02-21 2013-12-31 13F/A-1 PRIMORIS SVCS COM 74164F103 535,884 11,170 2.13 16,682 24.78 0.0053
2014-02-12 2013-12-31 13F PRIMORIS SVCS COM 74164F103 535,884 16,682
2013-11-13 2013-09-30 13F PRIMORIS SVCS COM 74164F103 524,714 83,158 18.83 13,369 53.53 0.0047
2013-08-09 2013-06-30 13F PRIMORIS SVCS COM 74164F103 441,556 441,556 8,708 0.0032
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.