Primoris Services Corp
PRIM- Exchange
- NYSE
- Industry
- Water, Sewer, Pipeline, Comm & Power Line Construction
- SEC CIK
- 0001361538
In the last 90 days, Primoris Services Corp insiders filed 1 open-market purchase and 0 sales; 450 institutions reported holding it in 13F filings for Q2 2026, worth $5.44B in total; Soros Fund Management is the only superinvestor holding it.
Holders of 5% or more of PRIM
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Primoris Services Corp, largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| BlackRock, Inc. | 13G/A | 7.80%4.18M shares | – | Apr 24, 20251 filing | Apr 24, 2025 | SEC |
| Dimensional Fund Advisors LP | 13G/A | 5.50%2.99M shares | – | Apr 15, 20251 filing | Apr 15, 2025 | SEC |
| Fuller & Thaler Asset Management, Inc. | 13G | 5.28%2.85M shares | New | Sep 5, 20251 filing | Sep 5, 2025 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
3 Schedule 13D and 13G filings on Primoris Services Corp, newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Sep 5, 20251:53 PM ET | Fuller & Thaler Asset Management, Inc. | 13G | 5.28%2.85M shares | New | Aug 31, 2025 | SEC |
| Apr 24, 20258:59 AM ET | BlackRock, Inc. | 13G/A | 7.80%4.18M shares | – | Mar 31, 2025 | SEC |
| Apr 15, 202512:18 PM ET | Dimensional Fund Advisors LP | 13G/A | 5.50%2.99M shares | – | Mar 31, 2025 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Primoris Services Corp shares.
No Form 144 notices for Primoris Services Corp are on file.