Primoris Services Corporation
US ˙ NYSE ˙ US74164F1030

SecurityPRIM / Primoris Services Corporation
InstitutionCitigroup Inc
Latest Disclosed Ownership10,628 shares
Latest Disclosed Value $ 1,520,230
Citigroup Inc reports 25.40% decrease in ownership of PRIM / Primoris Services Corporation

On May 11, 2026 - Citigroup Inc filed a 13F-HR form disclosing ownership of 10,628 shares of Primoris Services Corporation (US:PRIM) valued at $1,520,229 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 14,247 shares of Primoris Services Corporation. This represents a change in shares of -25.40% during the quarter. The current value of the position is $1,342,529 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)
2026-05-11 2026-03-31 13F PRIMORIS SVCS COM 74164F103 10,628 -3,619 -25.40 1,520 -14.03 0.0003
2026-02-13 2025-12-31 13F PRIMORIS SVCS COM 74164F103 14,247 -10,245 -41.83 1,769 -47.43 0.0008
2025-11-10 2025-09-30 13F PRIMORIS SVCS COM 74164F103 24,492 -9,309 -27.54 3,363 27.68 0.0015
2025-08-11 2025-06-30 13F PRIMORIS SVCS COM 74164F103 33,801 -46,142 -57.72 2,634 -42.60 0.0013
2025-05-12 2025-03-31 13F PRIMORIS SVCS COM 74164F103 79,943 10,944 15.86 4,590 -12.94 0.0023
2025-02-12 2024-12-31 13F PRIMORIS SVCS COM 74164F103 68,999 -7,059 -9.28 5,272 19.33 0.0031
2024-11-12 2024-09-30 13F PRIMORIS SVCS COM 74164F103 76,058 55,434 268.78 4,417 329.67 0.0026
2024-08-12 2024-06-30 13F PRIMORIS SVCS COM 74164F103 20,624 -9,084 -30.58 1,029 -18.67 0.0007
2024-05-10 2024-03-31 13F PRIMORIS SVCS COM 74164F103 29,708 12,096 68.68 1,265 116.44 0.0008
2024-02-09 2023-12-31 13F PRIMORIS SVCS COM 74164F103 17,612 11,940 210.51 585 215.68 0.0004
2023-12-06 2023-09-30 13F/A-1 PRIMORIS SVCS COM 74164F103 5,672 -20,098 -77.99 186 -76.43 0.0001
2023-11-09 2023-09-30 13F PRIMORIS SVCS COM 74164F103 5,672 -20,098 186 0.0001
2023-08-10 2023-06-30 13F PRIMORIS SVCS COM 74164F103 25,770 20,377 377.84 785 494.70 0.0005
2023-05-11 2023-03-31 13F PRIMORIS SVCS COM 74164F103 5,393 1,809 50.47 133 69.23 0.0001
2023-02-09 2022-12-31 13F PRIMORIS SVCS COM 74164F103 3,584 -805 -18.34 79 9.86 0.0001
2022-11-10 2022-09-30 13F PRIMORIS SVCS COM 74164F103 4,389 -2,362 -34.99 71 -51.70 0.0001
2022-08-10 2022-06-30 13F PRIMORIS SVCS COM 74164F103 6,751 1,223 22.12 147 12.21 0.0001
2022-05-12 2022-03-31 13F PRIMORIS SVCS COM 74164F103 5,528 -12,254 -68.91 131 -69.25 0.0001
2022-02-10 2021-12-31 13F PRIMORIS SVCS COM 74164F103 17,782 -5,936 -25.03 426 -26.68 0.0002
2021-11-10 2021-09-30 13F PRIMORIS SVCS COM 74164F103 23,718 5,307 28.83 581 7.20 0.0003
2021-08-10 2021-06-30 13F PRIMORIS SVCS COM 74164F103 18,411 244 1.34 542 -9.97 0.0003
2021-05-13 2021-03-31 13F PRIMORIS SVCS COM 74164F103 18,167 -19,201 -51.38 602 -41.67 0.0004
2021-02-11 2020-12-31 13F PRIMORIS SVCS COM 74164F103 37,368 15,903 74.09 1,032 166.67 0.0006
2020-11-12 2020-09-30 13F PRIMORIS SVCS COM 74164F103 21,465 6,773 46.10 387 48.28 0.0003
2020-08-12 2020-06-30 13F PRIMORIS SVCS COM 74164F103 14,692 975 7.11 261 19.72 0.0002
2020-05-12 2020-03-31 13F PRIMORIS SVCS COM 74164F103 13,717 -7,512 -35.39 218 -53.81 0.0002
2020-02-12 2019-12-31 13F PRIMORIS SVCS COM 74164F103 21,229 5,338 33.59 472 51.28 0.0003
2019-11-08 2019-09-30 13F PRIMORIS SVCS COM 74164F103 15,891 -512 -3.12 312 -9.04 0.0002
2019-08-12 2019-06-30 13F PRIMORIS SVCS COM 74164F103 16,403 -2,138 -11.53 343 -10.44 0.0003
2019-05-13 2019-03-31 13F PRIMORIS SVCS COM 74164F103 18,541 3,699 24.92 383 34.86 0.0004
2019-02-12 2018-12-31 13F PRIMORIS SVCS COM 74164F103 14,842 462 3.21 284 -20.45 0.0003
2018-11-13 2018-09-30 13F PRIMORIS SVCS COM 74164F103 14,380 2,454 20.58 357 9.85 0.0003
2018-08-10 2018-06-30 13F PRIMORIS SVCS COM 74164F103 11,926 -5,714 -32.39 325 -26.30 0.0003
2018-05-11 2018-03-31 13F PRIMORIS SVCS COM 74164F103 17,640 6,143 53.43 441 41.35 0.0004
2018-02-12 2017-12-31 13F PRIMORIS SVCS COM 74164F103 11,497 3,548 44.63 312 33.33 0.0003
2017-11-13 2017-09-30 13F PRIMORIS SVCS COM 74164F103 7,949 1,484 22.95 234 45.34 0.0002
2017-08-11 2017-06-30 13F PRIMORIS SVCS COM 74164F103 6,465 5,049 356.57 161 387.88 0.0001
2017-05-12 2017-03-31 13F PRIMORIS SVCS COM 74164F103 1,416 -52,320 -97.36 33 -97.30 0.0000
2017-02-10 2016-12-31 13F PRIMORIS SVCS COM 74164F103 53,736 44,417 476.63 1,224 537.50 0.0011
2016-11-10 2016-09-30 13F PRIMORIS SVCS COM 74164F103 9,319 -2,177 -18.94 192 -11.93 0.0002
2016-08-12 2016-06-30 13F PRIMORIS SVCS COM 74164F103 11,496 -19,597 -63.03 218 -71.13 0.0002
2016-05-13 2016-03-31 13F PRIMORIS SVCS COM 74164F103 31,093 14,326 85.44 755 104.05 0.0008
2016-02-12 2015-12-31 13F PRIMORIS SVCS COM 74164F103 16,767 14,014 509.04 370 655.10 0.0004
2015-11-13 2015-09-30 13F PRIMORIS SVCS COM 74164F103 2,753 -3,201 -53.76 49 -58.47 0.0000
2015-08-13 2015-06-30 13F PRIMORIS SVCS COM 74164F103 5,954 -4,131 -40.96 118 -32.18 0.0001
2015-05-14 2015-03-31 13F PRIMORIS SVCS COM 74164F103 10,085 -4,385 -30.30 174 -48.37 0.0002
2015-02-17 2014-12-31 13F PRIMORIS SVCS COM 74164F103 14,470 7,064 95.38 337 69.35 0.0003
2014-11-14 2014-09-30 13F PRIMORIS SVCS COM 74164F103 7,406 1,744 30.80 199 22.09 0.0002
2014-08-14 2014-06-30 13F PRIMORIS SVCS COM 74164F103 5,662 -97,270 -94.50 163 -94.72 0.0002
2014-05-15 2014-03-31 13F PRIMORIS SVCS COM 74164F103 102,932 -3,948 -3.69 3,086 -7.24 0.0032
2014-02-14 2013-12-31 13F PRIMORIS SVCS COM 74164F103 106,880 9,863 10.17 3,327 34.70 0.0030
2013-11-14 2013-09-30 13F PRIMORIS SVCS COM 74164F103 97,017 96,408 15,830.54 2,470 20,483.33 0.0023
2013-08-14 2013-06-30 13F PRIMORIS SVCS COM 74164F103 609 609 12 0.0000
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.