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Primoris Services
PRIM

450 hedge funds and large institutions have $6.94B invested in Primoris Services in 2025 Q3 according to their latest regulatory filings, with 112 funds opening new positions, 136 increasing their positions, 164 reducing their positions, and 43 closing their positions.

New
Increased
Maintained
Reduced
Closed

166% more call options, than puts

Call options by funds: $39.6M | Put options by funds: $14.9M

160% more first-time investments, than exits

New positions opened: 112 | Existing positions closed: 43

70% more capital invested

Capital invested by funds: $4.1B → $6.94B (+$2.85B)

60% more funds holding in top 10

Funds holding in top 10: 10 → 16 (+6)

16% more funds holding

Funds holding: 387 → 450 (+63)

3.59% less ownership

Funds ownership: 97.22% → 93.62% (-3.6%)

17% less repeat investments, than reductions

Existing positions increased: 136 | Existing positions reduced: 164

Holders
450
Holders Change
+63
Holders Change %
+16.28%
% of All Funds
5.91%
Holding in Top 10
16
Holding in Top 10 Change
+6
Holding in Top 10 Change %
+60%
% of All Funds
0.21%
New
112
Increased
136
Reduced
164
Closed
43
Calls
$39.6M
Puts
$14.9M
Net Calls
+$24.7M
Net Calls Change
+$16.1M

Top Buyers

1
Fuller & Thaler Asset Management
Fuller & Thaler Asset Management
California
+$82.9M
2
American Century Companies
American Century Companies
Missouri
+$44.9M
3
Wellington Management Group
Wellington Management Group
Massachusetts
+$41.1M
4
HAI
Hennessy Advisors Inc
California
+$39.1M
5
Mackenzie Financial
Mackenzie Financial
Ontario, Canada
+$37.4M

Top Sellers

1
Dimensional Fund Advisors
Dimensional Fund Advisors
Texas
-$129M
2
BlackRock
BlackRock
New York
-$72.2M
3
AllianceBernstein
AllianceBernstein
Tennessee
-$46.2M
4
Verition Fund Management
Verition Fund Management
Connecticut
-$36.8M
5
VBA
Van Berkom & Associates
Quebec, Canada
-$36.7M
Name Holding Trade Value Shares
Change 		Change in
Stake
YCM
451
Yaupon Capital Management
New York
– -$25.2M -323,931 Closed
SCM
452
SG Capital Management
Illinois
– -$12.1M -154,727 Closed
IGM
453
Incline Global Management
New York
– -$11.5M -147,127 Closed
MIM
454
Merewether Investment Management
Texas
– -$8.12M -104,131 Closed
Norges Bank
455
Norges Bank
Norway
– -$6.35M -81,442 Closed
Axa
456
Axa
France
– -$6.19M -79,459 Closed
BIMC
457
Benson Investment Management Company
Virginia
– -$4.08M -52,342 Closed
SC
458
SummitTX Capital
Texas
– -$3.9M -50,000 Closed
JF
459
Jump Financial
Illinois
– -$3.79M -48,679 Closed
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
460
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Ontario, Canada
– -$3.16M -40,600 Closed
HF
461
HRT Financial
New York
– -$3.08M -39,556 Closed
ACM
462
Aquatic Capital Management
Illinois
– -$2.4M -30,738 Closed
ACM
463
Archon Capital Management
Washington
– -$2.34M -30,072 Closed
ECM
464
ExodusPoint Capital Management
New York
– -$2.06M -26,398 Closed
YIH
465
Y-Intercept (HK)
Hong Kong
– -$2.01M -25,808 Closed
DRP
466
Decade Renewable Partners
Texas
– -$1.96M -25,141 Closed
MCP
467
Militia Capital Partners
Nevada
– -$1.56M -20,000 Closed
NRD
468
Nebula Research & Development
New York
– -$1.32M -16,888 Closed
CP
469
CenterBook Partners
Connecticut
– -$1.14M -14,646 Closed
CC
470
Centiva Capital
New York
– -$1.12M -14,326 Closed
IC
471
IEQ Capital
California
– -$847K -10,866 Closed
SSA
472
Sierra Summit Advisors
Nevada
– -$801K -10,271 Closed
DTL
473
Dynamic Technology Lab
Singapore
– -$521K -6,680 Closed
FC
474
Farringdon Capital
United Kingdom
– -$463K -5,935 Closed
CCIA
475
Campbell & Co Investment Adviser
Maryland
– -$392K -5,026 Closed
16 17 18
19
20

PRIM Hedge Fund Activity: Q3 2025 in Review

450 of the 7,619 institutional investors tracked by Wall St. Rank reported a position in Primoris Services (PRIM) for Q3 2025, worth a combined $6.94B — up 70% from $4.1B a quarter earlier.

Buyers outnumbered sellers: 112 funds opened new PRIM positions and 43 closed out — a net gain of 69 holders — while 136 added to existing stakes and 164 trimmed.

The largest buyer was Fuller & Thaler Asset Management, adding an estimated $82.9M. The largest seller was Dimensional Fund Advisors, cutting an estimated $129M.

  • 450 institutional investors held Primoris Services (PRIM) as of Q3 2025, up from 387 in Q2 2025.
  • Funds reported $6.94B of Primoris Services stock for Q3 2025, up 70% quarter-over-quarter.
  • 112 funds opened new Primoris Services positions in Q3 2025 and 43 closed out, a net change of +69 holders.
  • The largest Primoris Services buyer in Q3 2025 was Fuller & Thaler Asset Management, an estimated $82.9M added.
  • The largest Primoris Services seller in Q3 2025 was Dimensional Fund Advisors, an estimated $129M sold.

Based on aggregated 13F filings for Q3 2025.