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Primoris Services Corporation (PRIM) institutional ownership

Latest close $87.80 Jul 21, 2026
Market cap$4.6B 52-week range SectorIndustrials
Funds holding · Q1 2026
501
reported PRIM position changes
Top owners · Q1 2026
No disclosed owners are available.
Institutional activity · Q1 2026
Net sold $182M
253 buyers · 248 sellers

Primoris Services Corporation (PRIM) price and institutional activity

Dates

Q1 2026

$709M bought by 253 investors
First Trust Advisors LP$136MMillennium Management LLC$58M +251 more
$891M sold by 248 investors
Norges-$122MBoston Partners-$62M +246 more
Bought Sold Totals per quarter; hover a bar for the names.

Primoris Services Corporation (PRIM) institutional activity · 501

Investor Type Est. change Change Δ Own Date
First Trust Advisors LP · Added +$136M
Change +928K Date Q1 2026
First Trust Advisors LP Added· Q1 2026 +$136M +928K Q1 2026
Norges · Exited −$122M
Change −833K Δ Own −100.0% Date Q1 2026
Norges Exited· Q1 2026 −$122M −833K −100.0% Q1 2026
Boston Partners · Exited −$62M
Change −420K Δ Own −100.0% Date Q1 2026
Boston Partners Exited· Q1 2026 −$62M −420K −100.0% Q1 2026
Millennium Management LLC · Added +$58M
Change +399K Date Q1 2026
Millennium Management LLC Added· Q1 2026 +$58M +399K Q1 2026
Invesco Ltd. · Added +$50M
Change +338K Δ Own +32.0% Date Q1 2026
Invesco Ltd. Added· Q1 2026 +$50M +338K +32.0% Q1 2026
Alyeska Investment Group, L.P. · New +$43M
Change +297K Date Q1 2026
Alyeska Investment Group, L.P. New· Q1 2026 +$43M +297K Q1 2026
Qube Research & Technologies Ltd · Reduced −$43M
Change −293K Date Q1 2026
Qube Research & Technologies Ltd Reduced· Q1 2026 −$43M −293K Q1 2026
Encompass Capital Advisors LLC · Exited −$42M
Change −290K Δ Own −100.0% Date Q1 2026
Encompass Capital Advisors LLC Exited· Q1 2026 −$42M −290K −100.0% Q1 2026
D. E. Shaw & Co., Inc. · Reduced −$41M
Change −280K Δ Own −47.4% Date Q1 2026
D. E. Shaw & Co., Inc. Reduced· Q1 2026 −$41M −280K −47.4% Q1 2026
Westfield Capital Management Co LP · Reduced −$31M
Change −209K Date Q1 2026
Westfield Capital Management Co LP Reduced· Q1 2026 −$31M −209K Q1 2026
Jacobs Levy Equity Management, Inc · Reduced −$30M
Change −208K Date Q1 2026
Jacobs Levy Equity Management, Inc Reduced· Q1 2026 −$30M −208K Q1 2026
T. Rowe Price Associates · Added +$26M
Change +180K Date Q1 2026
T. Rowe Price Associates Added· Q1 2026 +$26M +180K Q1 2026
Arrowstreet Capital, Limited Partnership · Reduced −$24M
Change −163K Date Q1 2026
Arrowstreet Capital, Limited Partnership Reduced· Q1 2026 −$24M −163K Q1 2026
Citadel Advisors LLC Added· Q1 2026 +$21M +145K +104.9% Q1 2026
Nuveen, LLC · Reduced −$20M
Change −135K Date Q1 2026
Nuveen, LLC Reduced· Q1 2026 −$20M −135K Q1 2026
Data through Q1 2026 · filed Jun 3, 2026
15 of 501

Famous investor activity in Primoris Services Corporation (PRIM)

Primoris Services Corporation (PRIM) insider trading

Company insiders, action and economics first; trade and filed dates last.
Dates
Insider Title Type Price Qty Value Owned ΔOwn Trade date Filed date
McCallister Terry D. · Director Buy +$2K
Price $86.66 Qty +20 Owned 21K ΔOwn +0.1% Trade date Jul 15, 2026 Filed date Jul 17, 2026
McCallister Terry D. Director Buy $86.66 +20 +$2K 21K +0.1% Jul 15, 2026 Jul 17, 2026
Perisich John M. · Officer 6 operations −$3.8M
Price $125.75–$130.26 Qty −30K Owned 0 Trade date May 28, 2026 Filed date May 29, 2026
Perisich John M. Officer 6 operations $125.75–$130.26 −30K −$3.8M 0 May 28, 2026 May 29, 2026
Vadlamudi Koti · Director Grant (A) $1.0M
Price $127.96 Qty 8K Owned 8K Trade date May 27, 2026 Filed date May 28, 2026
Vadlamudi Koti Director Grant (A) $127.96 8K $1.0M 8K May 27, 2026 May 28, 2026
King David Lee · Director 3 operations −$2.4M
Price $118.55–$120.27 Qty −20K Owned 15K Trade date May 26, 2026 Filed date May 28, 2026
King David Lee Director 3 operations $118.55–$120.27 −20K −$2.4M 15K May 26, 2026 May 28, 2026
Ching Michael E. · Director Grant (A) 268
Owned 10K Trade date Apr 30, 2026 Filed date May 1, 2026
Ching Michael E. Director Grant (A) 268 10K Apr 30, 2026 May 1, 2026
Rodriguez Jose Ramon · Director Grant (A) 268
Owned 18K Trade date Apr 30, 2026 Filed date May 1, 2026
Rodriguez Jose Ramon Director Grant (A) 268 18K Apr 30, 2026 May 1, 2026
Mashinski Carla S. · Director Grant (A) 268
Owned 22K Trade date Apr 30, 2026 Filed date May 1, 2026
Mashinski Carla S. Director Grant (A) 268 22K Apr 30, 2026 May 1, 2026
Wagner Patricia K. · Director Grant (A) 268
Owned 3K Trade date Apr 30, 2026 Filed date May 1, 2026
Wagner Patricia K. Director Grant (A) 268 3K Apr 30, 2026 May 1, 2026
Schauerman John P. · Director Grant (A) 268
Owned 6K Trade date Apr 30, 2026 Filed date May 1, 2026
Schauerman John P. Director Grant (A) 268 6K Apr 30, 2026 May 1, 2026
McCallister Terry D. · Director Grant (A) 268
Owned 21K Trade date Apr 30, 2026 Filed date May 1, 2026
McCallister Terry D. Director Grant (A) 268 21K Apr 30, 2026 May 1, 2026
Saluja Harpreet · Director Grant (A) 268
Owned 1K Trade date Apr 30, 2026 Filed date May 1, 2026
Saluja Harpreet Director Grant (A) 268 1K Apr 30, 2026 May 1, 2026
King David Lee · Director Grant (A) 268
Owned 35K Trade date Apr 30, 2026 Filed date May 1, 2026
King David Lee Director Grant (A) 268 35K Apr 30, 2026 May 1, 2026
McCallister Terry D. · Director Buy +$2K
Price $164.40 Qty +10 Owned 21K Trade date Apr 15, 2026 Filed date Apr 17, 2026
McCallister Terry D. Director Buy $164.40 +10 +$2K 21K Apr 15, 2026 Apr 17, 2026
Kinch Jeremy · Officer 2 operations 0
Owned 9K Trade date Apr 1, 2026 Filed date Apr 2, 2026
Kinch Jeremy Officer 2 operations 0 9K Apr 1, 2026 Apr 2, 2026
Kinch Jeremy · Officer 2 operations 0
Owned 26K Trade date Apr 1, 2026 Filed date Apr 2, 2026
Kinch Jeremy Officer 2 operations 0 26K Apr 1, 2026 Apr 2, 2026
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15 of 69 Sign in to continue to older insider transactions.

Primoris Services Corporation (PRIM) activist and large shareholders

Dates
Owner/Filer identity Shares reported % of shares outstanding Filing date
Vanguard Group Inc 6.2M
% of shares outstanding 11.5% Filing date Nov 12, 2024
Vanguard Group Inc 6.2M 11.5% Nov 12, 2024
BlackRock Inc. 5.5M
% of shares outstanding 10.3% Filing date Jan 8, 2024
BlackRock Inc. 5.5M 10.3% Jan 8, 2024
Vanguard Portfolio Management 3.7M
% of shares outstanding 6.8% Filing date Apr 29, 2026
Vanguard Portfolio Management 3.7M 6.8% Apr 29, 2026
Dimensional Fund Advisors LP 3.6M
% of shares outstanding 6.7% Filing date Feb 9, 2024
Dimensional Fund Advisors LP 3.6M 6.7% Feb 9, 2024
First Trust Portfolios L.P. 3.4M
% of shares outstanding 6.3% Filing date Apr 27, 2026
First Trust Portfolios L.P. 3.4M 6.3% Apr 27, 2026
Vanguard Capital Management 2.7M
% of shares outstanding 5.0% Filing date Apr 30, 2026
Vanguard Capital Management 2.7M 5.0% Apr 30, 2026
Wellington Management Group LLP 1.6M
% of shares outstanding 2.9% Filing date Feb 8, 2024
Wellington Management Group LLP 1.6M 2.9% Feb 8, 2024
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Primoris Services Corporation (PRIM) ownership FAQ

Who owns PRIM?

501 reporting institutions disclosed PRIM position changes in the Q1 2026 snapshot.

How is institutional activity calculated?

For each manager, WhoBought compares accepted consecutive 13F share counts. Share change is current shares minus prior shares. Estimated dollar change is that signed share change multiplied by the split-adjusted quarter-mean close. The activity table on this page uses Q1 2026.

What are activist and large shareholder filings?

An investor crossing 5% of a share class generally files Schedule 13D for activist intent or Schedule 13G for a passive position. The technical form names appear here rather than in the activity rows.

Where does this data come from?

Ownership and institutional activity come from SEC Form 13F filings. Insider activity comes from SEC Form 4, and large-shareholder activity from SEC Schedules 13D and 13G. FMP supplies price data only. Company logos use the local verified Parqet cache with one shared fallback.

Why are ownership reports delayed?

Form 13F is a quarterly disclosure and is normally filed after the quarter ends. Every ownership and activity value therefore names its represented period; it is not presented as a live position.

How are missing table values shown?

A muted dash marks a missing table value. It means the filing omitted the value, comparable data is unavailable, or no prior position exists for comparison.