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Company Analysis

STRL Insider Trading

STERLING INFRASTRUCTURE, INC. | Heavy Construction Other Than Bldg Const - Contractors

Comprehensive Trading Performance Summary

The investment history of corporate insiders at STERLING INFRASTRUCTURE, INC. provides a unique lens into the internal conviction of the company's leadership. By analyzing SEC Form 4 filings, investors can track how directors and officers are allocating their own capital. High-conviction buying often signals that management believes the current market price significantly undervalues future growth prospects, while strategic selling might occur for personal liquidity or portfolio diversification. Monitoring these shifts in ownership is essential for understanding the alignment between management and shareholders in the Heavy Construction Other Than Bldg Const - Contractors sector.

Transactions on Chart

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Filing Date Trade Date Reporting Person Relationship Type Price Qty Total, $ Owned After Change, %
2008-08-15 19:22 2008-08-14 Allen James H JR Officer - Senior Vice President & CFO BUY $18.24 5,000 $91,200 5,000 +100.0%
2008-08-07 00:46 2008-08-06 HARPER JOSEPH P SR Director, Officer - President & COO SELL $20.00 1,263 $25,260 535,444 -0.2%
2008-08-05 16:36 2008-08-04 HARPER JOSEPH P SR Director, Officer - President & COO SELL $20.47 100 $2,047 536,707 0.0%
2008-08-02 01:24 2008-08-01 HARPER JOSEPH P SR Director, Officer - President & COO SELL $20.03 1,600 $32,051 536,807 -0.3%
2008-07-22 17:51 2008-07-21 HEMSLEY MAARTEN D Director SELL $19.94 250 $4,984 253,738 -0.1%
2008-07-17 17:58 2008-07-15 HEMSLEY MAARTEN D Director SELL $19.85 5,000 $99,260 253,988 -1.9%
2008-07-15 00:23 2008-07-14 HARPER JOSEPH P SR Director, Officer - President & COO SELL $20.00 5,000 $100,000 538,407 -0.9%
2008-06-24 17:59 2008-06-23 HEMSLEY MAARTEN D Director SELL $20.49 250 $5,124 258,988 -0.1%
2008-06-17 21:48 2008-06-16 HEMSLEY MAARTEN D Director SELL $20.33 5,000 $101,640 259,238 -1.9%
2008-06-09 16:52 2008-06-06 HARPER JOSEPH P SR Director, Officer - President & COO SELL $21.00 1,734 $36,414 543,407 -0.3%
2008-06-03 16:26 2008-06-02 HEMSLEY MAARTEN D Director SELL $20.00 3,006 $60,120 264,238 -1.1%
2008-06-02 23:57 2008-05-30 HEMSLEY MAARTEN D Director SELL $1,781.26 2,244 $3,997,144 267,244 -0.8%
2008-05-21 23:53 2008-05-21 HARPER JOSEPH P SR Director, Officer - President & COO SELL $21.00 2,741 $57,561 545,141 -0.5%
2008-05-21 18:11 2008-05-20 HARPER JOSEPH P SR Director, Officer - President & COO SELL $21.00 2,259 $47,439 547,882 -0.4%
2008-05-19 16:44 2008-05-15 HEMSLEY MAARTEN D Director SELL $20.00 5,000 $100,000 269,488 -1.8%
2008-02-04 19:21 2008-02-01 HARPER JOSEPH P SR Director, Officer - President & COO SELL $21.00 5,000 $105,000 550,141 -0.9%
2008-01-03 17:11 2008-01-02 HARPER JOSEPH P SR Director, Officer - President & COO SELL $21.59 5,000 $107,945 555,141 -0.9%
2008-01-02 22:05 2008-01-02 Barzun Roger M Officer - Senior Vice President OPT+S $21.63 1,190 $25,740 22,161 0.0%
2007-12-04 02:56 2007-12-03 HARPER JOSEPH P SR Director, Officer - President & COO SELL $23.38 5,000 $116,892 560,141 -0.9%
2007-12-03 23:03 2007-12-03 Barzun Roger M Officer - Senior Vice President OPT+S $23.30 1,190 $27,727 22,161 0.0%
2007-11-03 00:01 2007-11-01 HARPER JOSEPH P SR Director, Officer - President & COO SELL $24.80 5,000 $123,997 565,141 -0.9%
2007-11-01 18:55 2007-11-01 Barzun Roger M Officer - Senior Vice President OPT+S $24.50 800 $19,600 22,161 0.0%
2007-10-19 16:51 2007-10-18 HEMSLEY MAARTEN D Director SELL $24.96 2,388 $59,605 141,924 -1.7%
2007-10-17 18:36 2007-10-16 MANNING PATRICK T Director, Officer - Chief Executive Officer SELL $25.01 2,500 $62,525 132,500 -1.9%
2007-10-02 00:49 2007-10-01 HARPER JOSEPH P SR Director, Officer - President & COO SELL $23.22 5,000 $116,124 570,141 -0.9%
2007-10-01 21:50 2007-10-01 Barzun Roger M Officer - Senior Vice President OPT+S $23.33 800 $18,664 22,161 0.0%
2007-10-01 22:36 2007-09-10 HEMSLEY MAARTEN D Director SELL $22.50 14,000 $315,000 94,312 -12.9%
2007-10-01 22:54 2007-08-09 HEMSLEY MAARTEN D Director, Officer - Chief Financial Officer SELL $22.50 7,000 $157,500 108,312 -6.1%
2007-10-01 22:52 2007-06-19 HEMSLEY MAARTEN D Director, Officer - Chief Financial Officer SELL $21.57 7,000 $150,976 115,312 -5.7%
2007-09-10 23:03 2007-09-06 MANNING PATRICK T Director, Officer - Chief Executive Officer SELL $22.14 6,500 $143,910 135,000 -4.6%
2007-09-05 23:08 2007-09-04 HARPER JOSEPH P SR Director, Officer - President & COO SELL $22.01 5,000 $110,028 575,141 -0.9%
2007-09-05 23:34 2007-09-04 Barzun Roger M Officer - Senior Vice President OPT+S $22.12 800 $17,695 22,161 0.0%
2007-08-28 16:58 2007-08-24 MILLS CHRISTOPHER H B Director SELL $22.00 65,866 $1,449,052 500,000 -11.6%
2007-08-24 18:11 2007-08-23 MILLS CHRISTOPHER H B Director SELL $22.00 12,727 $279,994 565,866 -2.2%
2007-08-23 17:54 2007-08-14 MILLS CHRISTOPHER H B Director SELL $22.08 21,407 $472,628 578,593 -3.6%
2007-08-21 17:57 2007-08-14 MILLS CHRISTOPHER H B Director SELL $22.25 6,600 $146,850 593,400 -1.1%
2007-08-17 19:19 2007-08-16 HARPER JOSEPH P SR Director, Officer - President & COO SELL $21.25 5,000 $106,263 580,141 -0.9%
2007-08-10 19:54 2007-08-09 HEMSLEY MAARTEN D Director, Officer - Chief Financial Officer SELL $22.50 7,000 $157,500 79,888 -8.1%
2007-08-01 18:11 2007-08-01 Barzun Roger M Officer - Senior Vice President OPT+S $19.51 800 $15,608 22,161 0.0%
2007-07-03 01:08 2007-07-02 Barzun Roger M Officer - Senior Vice President OPT+S $21.25 800 $17,000 22,161 0.0%
2007-06-20 18:22 2007-06-19 HEMSLEY MAARTEN D Director, Officer - Chief Financial Officer SELL $21.57 7,000 $150,976 86,888 -7.5%
2007-06-19 16:54 2007-06-15 MANNING PATRICK T Director, Officer - Chief Executive Officer SELL $21.50 5,000 $107,517 136,500 -3.5%
2007-06-01 18:36 2007-06-01 Barzun Roger M Officer, Other - Senior Vice President OPT+S $23.55 800 $18,840 22,161 0.0%
2007-05-30 22:18 2007-05-29 MANNING PATRICK T Director, Officer - Chief Executive Officer SELL $23.01 7,500 $172,556 141,500 -5.0%
2007-05-29 17:43 2007-05-24 MILLS CHRISTOPHER H B Director SELL $22.00 81,400 $1,790,800 600,000 -11.9%
2007-05-18 20:16 2007-05-15 HEMSLEY MAARTEN D Director, Officer - Chief Financial Officer SELL $20.49 7,000 $143,405 122,312 -5.4%
2007-05-17 17:22 2007-05-15 HEMSLEY MAARTEN D Director, Officer - Chief Financial Officer SELL $20.49 7,000 $143,405 93,888 -6.9%
2007-05-01 21:52 2007-05-01 Barzun Roger M Officer, Other - Senior Vice President OPT+S $20.53 800 $16,424 22,161 0.0%
2007-04-18 18:41 2007-04-17 HEMSLEY MAARTEN D Director, Officer - Chief Financial Officer SELL $21.07 7,000 $147,484 100,888 -6.5%
2007-04-16 23:37 2007-04-13 HEMSLEY MAARTEN D Director, Officer - Chief Financial Officer SELL $20.00 7,000 $140,000 107,888 -6.1%
SHOW ENTRIES

How to Interpret $STRL Trades

Not every insider transaction in STERLING INFRASTRUCTURE, INC. is a signal for immediate action. Professional investors look for "cluster buying"—when multiple executives simultaneously purchase $STRL shares on the open market. It is crucial to distinguish between scheduled sales (under Rule 10b5-1) and voluntary increases in ownership, which demonstrate management’s true conviction that the stock is undervalued.

Data Source & Accuracy for STRL

Insider activity data for STERLING INFRASTRUCTURE, INC. is streamed in real-time directly from the SEC EDGAR system. We analyze raw Form 4 filings, filtering out technical adjustments and complex derivative transactions. This provides a transparent view of how ownership structure is evolving in $STRL, allowing you to follow the capital of those with the most intimate knowledge of the company.

UNDERSTANDING THE DATA

FILING DATE: The date and time when the transaction was reported to the SEC. This is when the public first receives the information.

TRADE DATE: The actual day the insider executed the purchase or sale in the market.

INDUSTRY: The specific market sector the company operates in. Useful for identifying broader institutional capital flows across sectors.

OWNED AFTER: The total number of shares held by the insider following the transaction. This highlights the insider's remaining conviction in the company.

CHANGE %: The percentage increase or decrease of the insider's total position. Large percentage changes often carry more weight than the dollar amount alone.

TRADE TYPES DEFINITIONS

BUY: An open market purchase. Typically indicates an insider's belief that the stock is undervalued or poised for growth.

SELL: An open market sale. While often used for diversification or liquidity, large or unexpected sales can be a warning signal.

OPT+S (OPTION EXERCISE & SALE): This occurs when an insider exercises their stock options and sells them immediately. Often part of a structured compensation plan.