Primoris Services Corporation
US ˙ NYSE ˙ US74164F1030

SecurityPRIM / Primoris Services Corporation
InstitutionMorgan Stanley
Latest Disclosed Ownership555,747 shares
Latest Disclosed Value $ 79,494,205
Morgan Stanley reports 6.19% decrease in ownership of PRIM / Primoris Services Corporation

On May 15, 2026 - Morgan Stanley filed a 13F-HR form disclosing ownership of 555,747 shares of Primoris Services Corporation (US:PRIM) valued at $79,494,051 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on May 27, 2026 disclosing 592,432 shares of Primoris Services Corporation. This represents a change in shares of -6.19% during the quarter. The current value of the position is $70,201,961 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)
2026-05-15 2026-03-31 13F PRIMORIS SVCS COM 74164F103 555,747 -36,685 -6.19 79,494 8.09 0.0048
2026-05-27 2025-12-31 13F/A-1 PRIMORIS SVCS COM 74164F103 592,432 185,988 45.76 73,545 31.76 0.0044
2026-02-13 2025-12-31 13F PRIMORIS SVCS COM 74164F103 592,432 185,988 73,545 0.0044
2026-05-27 2025-09-30 13F/A-1 PRIMORIS SVCS COM 74164F103 406,444 -129,469 -24.16 55,817 33.63 0.0034
2025-11-14 2025-09-30 13F PRIMORIS SVCS COM 74164F103 406,444 -129,469 55,817 0.0034
2025-08-15 2025-06-30 13F PRIMORIS SVCS COM 74164F103 535,913 -254,587 -32.21 41,769 -7.96 0.0027
2025-05-15 2025-03-31 13F PRIMORIS SVCS COM 74164F103 790,500 44,682 5.99 45,383 -20.35 0.0032
2025-05-15 2024-12-31 13F/A-1 PRIMORIS SVCS COM 74164F103 745,818 -124,618 -14.32 56,981 12.71 0.0040
2025-02-14 2024-12-31 13F PRIMORIS SVCS COM 74164F103 745,818 -124,618 56,981 0.0040
2025-05-14 2024-09-30 13F/A-2 PRIMORIS SVCS COM 74164F103 870,436 -52,516 -5.69 50,555 9.79 0.0037
2025-02-14 2024-09-30 13F/A-1 PRIMORIS SVCS COM 74164F103 870,436 -52,516 50,555 0.0037
2024-11-14 2024-09-30 13F PRIMORIS SVCS COM 74164F103 870,436 -52,516 50,555 0.0004
2025-05-14 2024-06-30 13F/A-2 PRIMORIS SVCS COM 74164F103 922,952 287,673 45.28 46,046 70.27 0.0036
2024-10-17 2024-06-30 13F/A-1 PRIMORIS SVCS COM 74164F103 922,952 287,673 46,046 0.0036
2024-08-14 2024-06-30 13F PRIMORIS SVCS COM 74164F103 922,952 287,673 46,046 0.0036
2024-10-17 2024-03-31 13F/A-2 PRIMORIS SVCS COM 74164F103 635,279 -219,865 -25.71 27,044 -4.77 0.0022
2024-08-16 2024-03-31 13F/A-1 PRIMORIS SVCS COM 74164F103 635,279 -219,865 27,044 0.0003
2024-05-15 2024-03-31 13F PRIMORIS SVCS COM 74164F103 635,279 -219,865 27,044 0.0022
2024-08-16 2023-12-31 13F/A-1 PRIMORIS SVCS COM 74164F103 855,144 252,626 41.93 28,399 44.01 0.0025
2024-02-13 2023-12-31 13F PRIMORIS SVCS COM 74164F103 855,144 252,626 28,399 0.0025
2023-11-15 2023-09-30 13F PRIMORIS SVCS COM 74164F103 602,518 39,066 6.93 19,720 14.86 0.0020
2023-08-14 2023-06-30 13F PRIMORIS SVCS COM 74164F103 563,452 13,273 2.41 17,168 26.54 0.0017
2023-05-15 2023-03-31 13F PRIMORIS SVCS COM 74164F103 550,179 111,299 25.36 13,567 40.90 0.0015
2023-02-14 2022-12-31 13F PRIMORIS SVCS COM 74164F103 438,880 30,109 7.37 9,629 44.95 0.0011
2022-11-14 2022-09-30 13F PRIMORIS SVCS COM 74164F103 408,771 90,423 28.40 6,643 -4.11 0.0009
2022-10-27 2022-06-30 13F/A-1 PRIMORIS SVCS COM 74164F103 318,348 -190,937 -37.49 6,928 -42.89 0.0009
2022-08-15 2022-06-30 13F PRIMORIS SVCS COM 74164F103 318,348 -190,937 6,928 0.0002
2022-10-27 2022-03-31 13F/A-1 PRIMORIS SVCS COM 74164F103 509,285 -50,773 -9.07 12,131 -9.67 0.0016
2022-05-13 2022-03-31 13F PRIMORIS SVCS COM 74164F103 509,285 -50,773 12,131 0.0016
2022-02-14 2021-12-31 13F PRIMORIS SVCS COM 74164F103 560,058 923 0.17 13,429 -1.93 0.0017
2021-11-15 2021-09-30 13F PRIMORIS SVCS COM 74164F103 559,135 344,092 160.01 13,693 116.39 0.0018
2021-08-23 2021-06-30 13F/A-1 PRIMORIS SVCS COM 74164F103 215,043 31,841 17.38 6,328 4.25 0.0008
2021-08-16 2021-06-30 13F PRIMORIS SVCS COM 74164F103 215,043 31,841 6,328 0.0002
2021-05-17 2021-03-31 13F PRIMORIS SVCS COM 74164F103 183,202 88,047 92.53 6,070 131.06 0.0009
2021-02-16 2020-12-31 13F PRIMORIS SVCS COM 74164F103 95,155 -113,268 -54.35 2,627 -30.13 0.0004
2020-11-13 2020-09-30 13F PRIMORIS SVCS COM 74164F103 208,423 178,423 594.74 3,760 604.12 0.0007
2020-08-14 2020-06-30 13F PRIMORIS SVCS COM 74164F103 30,000 16,715 125.82 534 153.08 0.0001
2020-05-26 2020-03-31 13F/A-1 PRIMORIS SVCS COM 74164F103 13,285 -50,983 -79.33 211 -85.23 0.0001
2020-05-15 2020-03-31 13F PRIMORIS SVCS COM 74164F103 13,285 -50,983 211 16.2092
2020-02-14 2019-12-31 13F PRIMORIS SVCS COM 74164F103 64,268 4,245 7.07 1,429 21.41 0.0003
2019-11-14 2019-09-30 13F PRIMORIS SVCS COM 74164F103 60,023 51,586 611.43 1,177 568.75 0.0003
2019-08-14 2019-06-30 13F PRIMORIS SVCS COM 74164F103 8,437 -25,359 -75.04 176 -74.79 0.0000
2019-05-15 2019-03-31 13F PRIMORIS SVCS COM 74164F103 33,796 -91,570 -73.04 698 -70.90 0.0002
2019-02-14 2018-12-31 13F PRIMORIS SVCS COM 74164F103 125,366 -32,327 -20.50 2,399 -38.69 0.0007
2019-04-23 2018-09-30 13F/A-2 PRIMORIS SVCS COM 74164F103 157,693 -4,669 -2.88 3,913 -11.49 0.0010
2018-11-20 2018-09-30 13F/A-1 PRIMORIS SVCS COM 74164F103 157,693 0 3,913 0.0010
2018-11-14 2018-09-30 13F PRIMORIS SVCS COM 74164F103 157,693 -4,669 3,913
2019-04-23 2018-06-30 13F/A-1 PRIMORIS SVCS COM 74164F103 162,362 69,887 75.57 4,421 91.39 0.0012
2018-08-14 2018-06-30 13F PRIMORIS SVCS COM 74164F103 162,362 69,887 4,421
2019-04-23 2018-03-31 13F/A-1 PRIMORIS SVCS COM 74164F103 92,475 -7,314 -7.33 2,310 -14.89 0.0006
2018-05-14 2018-03-31 13F PRIMORIS SVCS COM 74164F103 92,475 -7,314 2,310
2019-04-23 2017-12-31 13F/A-1 PRIMORIS SVCS COM 74164F103 99,789 -108,435 -52.08 2,714 -55.70 0.0007
2018-02-14 2017-12-31 13F PRIMORIS SVCS COM 74164F103 99,789 -108,435 2,714
2017-11-14 2017-09-30 13F PRIMORIS SVCS COM 74164F103 208,224 141,118 210.29 6,126 266.17 0.0018
2017-08-11 2017-06-30 13F PRIMORIS SVCS COM 74164F103 67,106 10,720 19.01 1,673 27.71 0.0005
2017-05-22 2017-03-31 13F/A-1 PRIMORIS SVCS COM 74164F103 56,386 -62,874 -52.72 1,310 -51.79 0.0004
2017-05-12 2017-03-31 13F PRIMORIS SVCS COM 74164F103 56,386 1,310
2017-02-22 2016-12-31 13F/A-1 PRIMORIS SVCS COM 74164F103 119,260 110,776 1,305.70 2,717 1,443.75 0.0009
2017-02-13 2016-12-31 13F PRIMORIS SVCS COM 74164F103 119,260 2,717
2016-11-10 2016-09-30 13F PRIMORIS SVCS COM 74164F103 8,484 -1,762 -17.20 176 -9.28 0.0001
2016-08-12 2016-06-30 13F PRIMORIS SVCS COM 74164F103 10,246 7,582 284.61 194 203.13 0.0001
2016-05-12 2016-03-31 13F PRIMORIS SVCS COM 74164F103 2,664 990 59.14 64 72.97 0.0000
2016-02-09 2015-12-31 13F PRIMORIS SVCS COM 74164F103 1,674 -1,160 -40.93 37 -27.45 0.0000
2016-02-08 2015-09-30 13F/A-1 PRIMORIS SVCS COM 74164F103 2,834 1,404 98.18 51 82.14 0.0000
2015-11-09 2015-09-30 13F PRIMORIS SVCS COM 74164F103 2,834 51
2015-08-12 2015-06-30 13F PRIMORIS SVCS COM 74164F103 1,430 -6,133 -81.09 28 -78.46 0.0000
2015-05-14 2015-03-31 13F PRIMORIS SVCS COM 74164F103 7,563 -25,400 -77.06 130 -83.03 0.0000
2015-02-13 2014-12-31 13F PRIMORIS SVCS COM 74164F103 32,963 28,757 683.71 766 577.88 0.0003
2014-12-16 2014-09-30 13F/A-1 PRIMORIS SVCS COM 74164F103 4,206 -151,065 -97.29 113 -97.57 0.0000
2014-11-14 2014-09-30 13F PRIMORIS SVCS COM 74164F103 4,206 113
2014-05-13 2014-03-31 13F PRIMORIS SVCS COM 74164F103 155,271 -102,625 -39.79 4,654 -42.03 0.0019
2014-02-13 2013-12-31 13F PRIMORIS SVCS COM 74164F103 257,896 64,620 33.43 8,028 63.04 0.0034
2013-11-13 2013-09-30 13F PRIMORIS SERVICES CORP C COM 74164F103 193,276 -434,071 -69.19 4,924 -60.20 0.0023
2013-08-08 2013-06-30 13F PRIMORIS SERVICES CORP C COM 74164F103 627,347 627,347 12,371 0.0062
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.