Primoris Services Ownership | Who Owns Primoris Services?


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Primoris Services Ownership Summary


Primoris Services is owned by 36.91% institutional investors, 1.17% insiders, and 61.92% retail investors. Blackrock funding, inc. /de is the largest institutional shareholder, holding 15.45% of PRIM shares. iShares Core S&P Small-Cap ETF is the top mutual fund, with 6.03% of its assets in Primoris Services shares.

PRIM Ownership Benchmark


TypeName% Inst% Insiders% Retail
StockPrimoris Services36.91%1.17%61.92%
SectorIndustrials Stocks 49.43%16.01%34.55%

Institutional Shareholders


Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Blackrock funding, inc. /de8.34M15.45%$1.19B
Vanguard group6.48M12.00%$804.36M
Fuller & thaler asset management2.97M5.49%$424.39M
First trust advisors lp2.89M5.34%$412.84M
State street2.06M3.82%$295.33M
Wellington management group llp1.88M3.48%$268.86M
Geode capital management1.46M2.70%$208.33M
Invesco1.40M2.59%$199.79M
Dimensional fund advisors lp1.16M2.15%$165.77M
American century companies1.08M2.00%$154.21M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
West tower group26.37K11.77%$3.77M
Bolthouse investments75.00K9.70%$10.73M
Value management399.44K9.26%$57.14M
Bruni j v & co /co437.02K6.53%$62.51M
Grandeur peak global advisors109.97K3.69%$15.73M
A. d. beadell investment counsel51.00K3.24%$5.05M
Thames capital management100.00K2.56%$14.30M
Van berkom & associates462.58K2.19%$66.17M
Rithm capital9.90K2.10%$1.42M
Lumbard & kellner41.50K2.06%$5.94M

Top Buyers

HolderShares% AssetsChange
First trust advisors lp2.89M0.29%928.15K
Norges bank832.68K0.01%832.68K
Vanguard group6.48M0.01%466.19K
Millennium management400.80K0.02%399.04K
Vanguard fiduciary trust372.33K0.01%372.33K

Top Sellers

HolderShares% AssetsChange
Artemis investment management llp---879.58K
Congress asset management co /ma5.94K0.00%-812.15K
Boston partners---420.48K
Qube research34.51K0.01%-293.13K
Encompass capital advisors---289.91K

New Positions

HolderShares% AssetsChangeValue
Norges bank832.68K0.01%832.68K$103.37M
Vanguard fiduciary trust372.33K0.01%372.33K$53.26M
Alyeska investment group296.81K0.12%296.81K$42.46M
Ardsley advisory partners lp135.00K1.39%135.00K$13.38M
Wcm investment management124.22K0.04%124.22K$16.70M

Sold Out

HolderChange
Camelot portfolios-1.00
American capital advisory-1.00
Corecap advisors-2.00
Signature resources capital management-3.00
Vermillion wealth management-4.00

Institutional Ownership Trends


DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Mar 31, 2026306-37.42%19,929,473-64.69%360.34%151-43.23%113-35.43%
Dec 31, 2025381-17.89%44,289,404-12.43%810.93%211-14.92%130-21.69%
Sep 30, 202546216.37%50,568,656-3.65%930.99%24916.36%16423.31%
Jun 30, 20253976.72%52,485,647-1.41%970.99%214-3.60%13319.82%
Mar 31, 20253721.36%53,236,9764.85%981.11%2223.26%1111.83%

Top Mutual Funds Shareholders


HolderShares% HoldingChange
iShares Core S&P Small-Cap ETF3.27M6.03%480.00
FullerThaler Beh Small-Cap Equity SMA2.24M4.15%-24.50K
FullerThaler Behavioral Small-Cap Equity2.14M3.94%-103.80K
FullerThaler Behavioral Sm-Cp Eq R62.13M3.93%-6.30K
Vanguard Total Stock Mkt Idx Inv1.64M3.02%380.00
First Trust RBA Amer Indl RenaisTM ETF1.37M2.52%-792.00
iShares Russell 2000 ETF1.30M2.39%12.01K
Vanguard Small Cap Index1.18M2.18%441.00
Vanguard Explorer Inv972.38K1.79%-30.82K
Vanguard Small Cap Value Index Inv750.52K1.38%-10.78K

Recent Insider Transactions


DateNameRoleActivityValue
Jul 15, 2026MCCALLISTER TERRY D-Buy$1.69K
May 27, 2026Vadlamudi Koti PRESIDENT & CEOBuy$1.00M
May 28, 2026Perisich John M. CHIEF LEGAL AND ADMIN OFFICERSell$790.79K
May 28, 2026Perisich John M. CHIEF LEGAL AND ADMIN OFFICERSell$1.20M
May 28, 2026Perisich John M. CHIEF LEGAL AND ADMIN OFFICERSell$268.22K

Insider Transactions Trends


DateBuySell
2026 Q31-
2026 Q229
2026 Q11-
2025 Q414
2025 Q3-11

PRIM Ownership FAQ


Who owns the most shares of Primoris Services?

Primoris Services’s largest shareholders are Blackrock funding, inc. /de (8.34M shares, 15.45%), Vanguard group (6.48M shares, 12.00%), and Fuller & thaler asset management (2.97M shares, 5.49%). Together, they hold 32.94% of Primoris Services’s total shares outstanding.

Does Blackrock own Primoris Services?

BlackRock is not among the top 10 institutional shareholders of Primoris Services.

Who is Primoris Services’s biggest shareholder by percentage of total assets invested?

West tower group is Primoris Services’s biggest shareholder by percentage of total assets invested, with 11.77% of its assets in 26.37K Primoris Services shares, valued at 3.77M$.

Who is the top mutual fund holder of Primoris Services shares?

iShares Core S&P Small-Cap ETF is the top mutual fund holder of Primoris Services shares, with 6.03% of its total shares outstanding invested in 3.27M Primoris Services shares.

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