InsiderTrades

Form 4 for PRIM Primoris Services Corp

Accepted 2026-04-01 18:05:05 ET · period of report 2026-04-01 · accession 0001620715-26-000004 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
D 2026-04-01 18:05 2026-04-01 PRIM King David Lee Dir M - OptEx — +21.8K 43.2K +101% —
D 2026-04-01 18:05 2026-04-01 PRIM King David Lee Dir F - Tax $143.04 -8,569 34.7K -20% -$1.23M
D 2026-04-01 18:05 2026-04-01 PRIM King David Lee Dir M - OptEx $0.00 -21.8K 0 -100% $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2026-04-01 M A 21,774 — 43,242 D — — (F1) Each restricted stock unit represents a contingent right to receive one share of PRIM common stock or the cash value thereof on the date of settlement, in the Company's discretion. On April 1, 2026, the restricted stock units vested and were settled for an equal number of shares of PRIM common stock.
2 Common Common Stock 2026-04-01 F D 8,569 $143.04 34,673 D — — (F2) Withholding of common stock to satisfy reporting person's tax obligation upon the settlement of vested restricted stock units.
3 Derivative Restricted Stock Units 2026-04-01 M D 21,774 $0.00 0 D — · — to — 21,774 Common Stock (F1) Each restricted stock unit represents a contingent right to receive one share of PRIM common stock or the cash value thereof on the date of settlement, in the Company's discretion. On April 1, 2026, the restricted stock units vested and were settled for an equal number of shares of PRIM common stock. (F1) Each restricted stock unit represents a contingent right to receive one share of PRIM common stock or the cash value thereof on the date of settlement, in the Company's discretion. On April 1, 2026, the restricted stock units vested and were settled for an equal number of shares of PRIM common stock. (F1) Each restricted stock unit represents a contingent right to receive one share of PRIM common stock or the cash value thereof on the date of settlement, in the Company's discretion. On April 1, 2026, the restricted stock units vested and were settled for an equal number of shares of PRIM common stock.