InsiderTrades

Form 4 for STRL STERLING INFRASTRUCTURE, INC.

Accepted 2026-03-09 00:00:00 ET · period of report 2026-03-09 · accession 0000874238-26-000032 · 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
2026-03-09 2026-03-09 STRL Dill Julie Dir S - Sale $384.28 -4,500 17.9K -20% -$1.73M

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2026-03-09 S D 4,500 $384.28 17,853 D — — (F1) The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2025. (F2) Transaction executed in multiple trades at prices ranging from $381.00 to $387.21 per share, inclusive. The price reported in column 4 above reflects the average sale price per share. The Reporting Person hereby undertakes to provide the SEC staff, the Issuer or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote. (F3) Of these shares, 751 shares are subject to restrictions on their sale or other transfer and to forfeiture under certain circumstances.