PRIMPrimoris Services Corporation

$83.62-35% 1Y

Who owns PRIM

444 institutions reported holding PRIM for 2026Q2, together 100% of the company, fewer than the 506 a quarter earlier.

444

Institutions reporting a position · as of 2026Q2 · down from 506 the quarter before

Shares held by institutions
55.1M

Shares held by institutions · 100% of the company · long US equity positions only, as reported on Form 13F

Reported value
$5.44B

Reported value · at Jun 30, 2026 prices, not today's

Top 5 holders
39%

Top 5 holders · of the whole company, between five filers

Details›
Reporting quarter2026-06-30
2026Q2
Quarters on record
53
New positions
116
Positions exited
177
Added to
119
Reduced
151
Top 10 holdersof the company
51%
Shares sold shortsettled Sep 15, 2026
5.4M
Short interestof shares outstanding
9.9%
Days to coverat the average daily volume
4.3
Change in the short positionsince the Aug 31, 2026 count
+7.2%
Institutional ownership by quarter, 2013Q2 to 2026Q2
QuarterFilersSharesReported value
2026Q244455.1M$5.44B
2026Q150655.1M$7.86B
2025Q448156.4M$7.01B
2025Q344850.5M$6.93B
2025Q238552.5M$4.10B
2025Q136853.5M$3.04B
2024Q435850.8M$3.88B
2024Q330050.2M$2.93B
2024Q229250.6M$2.53B
2024Q123649.6M$2.10B
2023Q422549.1M$1.63B
2023Q319248.4M$1.58B
2023Q217648.1M$1.46B
2023Q116848.0M$1.18B
2022Q417847.0M$1.03B
2022Q317547.1M$766M
Largest reported holders, 2026Q2
HolderShares% of companyValue
BlackRock Inc.6.8M12%$678M
VANGUARD GROUP INC5.9M11%$585M
WELLINGTON MANAGEMENT GROUP LLP4.7M8.5%$463M
FIRST TRUST ADVISORS LP2.2M4.1%$222M
STATE STREET CORP1.8M3.3%$180M
MILLENNIUM MANAGEMENT LLC1.5M2.7%$148M
Southpoint Capital Advisors LP1.4M2.6%$139M
MORGAN STANLEY1.3M2.3%$127M
DIMENSIONAL FUND ADVISORS LP1.2M2.2%$117M
GEODE CAPITAL MANAGEMENT LLC1.1M2.0%$109M
Short interest by settlement date, Aug 29, 2025 to Sep 15, 2026
SettlementShares shortOf shares outstandingDays to cover
Sep 15, 20265.4M9.9%4.3
Aug 31, 20265.1M9.3%5.2
Aug 14, 20264.5M8.2%3.4
Jul 31, 20264.5M8.2%3.1
Jul 15, 20263.0M5.5%2.4
Jun 30, 20263.0M5.5%1.0
Jun 15, 20264.0M7.3%1.7
May 29, 20264.2M7.7%2.0
May 15, 20263.5M6.5%1.0
Apr 30, 20262.6M4.8%3.2
Apr 15, 20263.0M5.5%5.0
Mar 31, 20263.1M5.7%3.9

SEC Form 13F data sets (DERA bulk files). 13F is quarterly, filed up to 45 days late, and covers long US equity positions only, no shorts, no derivatives, nothing held below the reporting threshold. The short position is FINRA's consolidated count for each twice-monthly settlement date, as a share of shares outstanding.

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