As of the latest Form 4 filed May 29, 2026.
What Primoris Services Corporation insiders — officers, directors and 10% owners — have bought and sold in their own stock, straight from their SEC Form 4 filings. Values are shares × the reported transaction price where both are disclosed.
Buys plotted up, sells down; bar height is the disclosed dollar value (shares × reported price). Our Form 4 history is only complete from mid-2026, so early months are sparse — the series fills in as more filings land. Open-market purchases and sales only.
Newest filing first — the 32 most recent filings for PRIM.
| Filed | Trade date | Insider | Transaction | Shares | Price | Value | 10b5-1 | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-05-29 | 2026-05-28 | Perisich John M. CHIEF LEGAL AND ADMIN OFFICER | SSale | −105.00 | $130.26 | $13.7K | No | Form 4 ↗ |
| 2026-05-29 | 2026-05-28 | Perisich John M., CHIEF LEGAL AND ADMIN OFFICER | SSale | −5.86K | $129.85 | $760K | No | Form 4 ↗ |
| 2026-05-29 | 2026-05-28 | Perisich John M., CHIEF LEGAL AND ADMIN OFFICER | SSale | −6.15K | $128.65 | $791K | No | Form 4 ↗ |
| 2026-05-29 | 2026-05-28 | Perisich John M., CHIEF LEGAL AND ADMIN OFFICER | SSale | −6.02K | $127.66 | $768K | No | Form 4 ↗ |
| 2026-05-29 | 2026-05-28 | Perisich John M., CHIEF LEGAL AND ADMIN OFFICER | SSale | −9.45K | $126.68 | $1.20M | No | Form 4 ↗ |
| 2026-05-29 | 2026-05-28 | Perisich John M., CHIEF LEGAL AND ADMIN OFFICER | SSale | −2.13K | $125.75 | $268K | No | Form 4 ↗ |
| 2026-05-28 | 2026-05-27 | Vadlamudi Koti PRESIDENT & CEO | AAward | +7.82K | $127.96 | $1.00M | No | Form 4 ↗ |
| 2026-05-28 | 2026-05-26 | King David Lee Director | SSale | −3.75K | $120.27 | $451K | No | Form 4 ↗ |
| 2026-05-28 | 2026-05-26 | King David Lee, Director | SSale | −3.92K | $119.66 | $469K | No | Form 4 ↗ |
| 2026-05-28 | 2026-05-26 | King David Lee, Director | SSale | −12.3K | $118.55 | $1.46M | No | Form 4 ↗ |
| 2026-05-01 | 2026-04-30 | Saluja Harpreet Director | AAward | +268.00 | — | — | No | Form 4 ↗ |
| 2026-05-01 | 2026-04-30 | Ching Michael E. Director | AAward | +268.00 | — | — | No | Form 4 ↗ |
| 2026-05-01 | 2026-04-30 | Rodriguez Jose Ramon Director | AAward | +268.00 | — | — | No | Form 4 ↗ |
| 2026-05-01 | 2026-04-30 | Wagner Patricia K Director | AAward | +268.00 | — | — | No | Form 4 ↗ |
| 2026-05-01 | 2026-04-30 | King David Lee Director | AAward | +268.00 | — | — | No | Form 4 ↗ |
| 2026-05-01 | 2026-04-30 | Schauerman John P. Director | AAward | +268.00 | — | — | No | Form 4 ↗ |
| 2026-05-01 | 2026-04-30 | MASHINSKI CARLA S Director | AAward | +268.00 | — | — | No | Form 4 ↗ |
| 2026-05-01 | 2026-04-30 | MCCALLISTER TERRY D Director | AAward | +268.00 | — | — | No | Form 4 ↗ |
| 2026-04-17 | 2026-04-15 | MCCALLISTER TERRY D Director | PPurchase | +10.14 | $164.40 | $1.67K | No | Form 4 ↗ |
| 2026-04-01 | 2026-04-01 | King David Lee Director | FTax | −8.57K | $143.04 | $1.23M | No | Form 4 ↗ |
| 2026-04-01 | 2026-04-01 | King David Lee, Director | MExercise | +21.8K | — | — | No | Form 4 ↗ |
| 2026-01-16 | 2026-01-15 | MCCALLISTER TERRY D Director | PPurchase | +11.91 | $138.00 | $1.64K | No | Form 4 ↗ |
| 2025-12-15 | 2025-12-11 | Schauerman John P. Director | SSale | −7.82K | $136.00 | $1.06M | No | Form 4 ↗ |
| 2025-12-09 | 2025-12-08 | MASHINSKI CARLA S Director | SSale | −2.08K | $135.14 | $281K | No | Form 4 ↗ |
| 2024-05-02 | 2024-05-01 | Rodriguez Jose Ramon Director | AAward | +800.00 | — | — | No | Form 4 ↗ |
| 2024-05-02 | 2024-05-01 | MCCALLISTER TERRY D Director | AAward | +800.00 | — | — | No | Form 4 ↗ |
| 2024-05-02 | 2024-05-01 | King David Lee Director | AAward | +800.00 | — | — | No | Form 4 ↗ |
| 2024-05-02 | 2024-05-01 | MASHINSKI CARLA S Director | AAward | +800.00 | — | — | No | Form 4 ↗ |
| 2024-05-02 | 2024-05-01 | Wagner Patricia K Director | AAward | +800.00 | — | — | No | Form 4 ↗ |
| 2024-05-02 | 2024-05-01 | Schauerman John P. Director | AAward | +800.00 | — | — | No | Form 4 ↗ |
| 2024-05-02 | 2024-05-01 | Cook Stephen C. Director | AAward | +800.00 | — | — | No | Form 4 ↗ |
| 2024-05-02 | 2024-05-01 | Ching Michael E. Director | AAward | +800.00 | — | — | No | Form 4 ↗ |
Insiders — a company’s officers, directors and holders of more than 10% of its stock — must report any trade in that stock to the SEC on a Form 4 within two business days. Each row here is one transaction from those filings.
The transaction code tells you what happened: Purchase (P) and Sale (S) are open-market trades — the ones markets watch most; Award (A) is a granted stock or unit, Option exercise (M) converts options into shares, and Gift (G) is a transfer for no consideration. Awards, exercises and gifts are largely compensation or administrative, not a directional bet.
One caveat on sales: many are made under a Rule 10b5-1 plan scheduled months in advance, so a sale is not automatically a bearish signal. Insider activity is a noisy input — read it alongside the filings, not on its own.
See also PRIM’s full analysis or the market-wide insider trading feed. The tabs above jump to PRIM’s other SEC data.
Source: SEC Form 4 filings for PRIM, parsed from EDGAR. Transaction prices are as reported in the filing — SEC public-domain data, not market quotes. Values are shares × reported price where both are disclosed; grants and gifts often carry no price. A delayed record of what insiders reported, not a live position or a recommendation.
Research and education only — not financial advice. TENKis not a registered investment adviser or broker-dealer and gives no personalized advice. Every call is impersonal — identical for all users, generated on a schedule from SEC filings plus a delayed/third-party price feed — may be wrong or out of date, and is not a recommendation to buy or sell any security. The operator and an affiliated trading operation may hold or trade the securities TENK rates; see Disclosures. Past performance does not guarantee future results. Do your own research.