Construction Machinery & Equip
Standard Industrial Classification: SIC 3531
Industry Insider Sentiment Analysis
The Construction Machinery & Equip sector (SIC 3531) acts as a critical barometer for broader economic health. Our real-time monitoring reveals total transactions. Monitoring "cluster buying" is one of the most reliable leading indicators for future sector performance. By analyzing aggregate data across this specific Standard Industrial Classification, investors can filter out individual company volatility and identify high-conviction trends. When multiple directors and officers within the same industry move capital simultaneously, it often signals an upcoming sector-wide revaluation or a fundamental shift in supply chain dynamics that has yet to be recognized by the broader public market.
| Filing Date | Trade Date | Ticker | Company | Reporting Person | Relationship | Type | Price | Qty | Total, $ | Owned After |
|---|---|---|---|---|---|---|---|---|---|---|
| 2017-10-16 20:03 | 2017-10-12 | GENC | GENCOR INDUSTRIES INC | Houtkin Sherry | 10% owner | SELL | $18.13 | 9,316 | $168,943 | 1,263,275 |
| 2017-10-12 23:23 | 2017-10-10 | GENC | GENCOR INDUSTRIES INC | Houtkin Sherry | 10% owner | SELL | $18.11 | 12,588 | $227,926 | 1,272,591 |
| 2017-10-10 18:41 | 2017-10-06 | GENC | GENCOR INDUSTRIES INC | Houtkin Sherry | 10% owner | SELL | $18.12 | 13,026 | $236,073 | 1,285,179 |
| 2017-10-06 22:12 | 2017-10-03 | GENC | GENCOR INDUSTRIES INC | Houtkin Sherry | 10% owner | SELL | $17.93 | 45,802 | $821,074 | 1,298,205 |
| 2017-10-03 20:02 | 2017-09-29 | GENC | GENCOR INDUSTRIES INC | Houtkin Sherry | 10% owner | SELL | $17.78 | 35,558 | $632,147 | 1,344,007 |
| 2017-09-28 23:50 | 2017-09-27 | GENC | GENCOR INDUSTRIES INC | Houtkin Sherry | 10% owner | SELL | $17.66 | 35,000 | $618,174 | 1,379,565 |
| 2017-09-27 23:29 | 2017-09-25 | GENC | GENCOR INDUSTRIES INC | Houtkin Sherry | 10% owner | SELL | $17.36 | 19,756 | $343,019 | 1,414,565 |
| 2017-09-22 19:29 | 2017-09-20 | GENC | GENCOR INDUSTRIES INC | Houtkin Sherry | 10% owner | SELL | $16.97 | 15,451 | $262,163 | 1,434,321 |
| 2017-09-19 16:20 | 2017-09-18 | GENC | GENCOR INDUSTRIES INC | ELLIOTT MARC G | Director, Officer | SELL | $16.52 | 25,000 | $413,000 | 405,175 |
| 2017-09-18 20:26 | 2017-09-14 | GENC | GENCOR INDUSTRIES INC | Mellen Eric E | Officer | SELL | $16.55 | 11,750 | $194,518 | 10,500 |
| 2017-09-18 20:36 | 2017-09-15 | GENC | GENCOR INDUSTRIES INC | Air David | Director | SELL | $16.00 | 1,500 | $24,000 | 4,000 |
| 2017-09-19 00:07 | 2017-09-14 | PLOW | DOUGLAS DYNAMICS, INC | Lauber Sarah C | Officer | BUY | $36.04 | 1,250 | $45,050 | 1,250 |
| 2017-09-18 21:12 | 2017-09-14 | GENC | GENCOR INDUSTRIES INC | DONDERO CORT J | Director | SELL | $16.02 | 7,500 | $120,149 | 0 |
| 2017-09-12 19:25 | 2017-09-11 | CMCO | COLUMBUS MCKINNON CORP | Korman Alan S | Officer | OPT+S | $32.93 | 2,500 | $82,325 | 10,621 |
| 2017-09-08 00:41 | 2017-09-07 | GENC | GENCOR INDUSTRIES INC | LYONS JEANNE M | Officer | SELL | $15.55 | 1,000 | $15,550 | 2,000 |
| 2017-08-31 23:12 | 2017-08-30 | PLOW | DOUGLAS DYNAMICS, INC | Janik James L | Director, Officer | SELL | $35.03 | 20,000 | $700,540 | 322,790 |
| 2017-08-29 17:08 | 2017-08-28 | CMCO | COLUMBUS MCKINNON CORP | Korman Alan S | Officer | SELL | $32.00 | 1,000 | $32,000 | 10,621 |
| 2017-08-29 16:56 | 2017-08-25 | CMCO | COLUMBUS MCKINNON CORP | TEVENS TIMOTHY T | OPT+S | $31.84 | 43,845 | $1,396,025 | 293,536 | |
| 2017-08-30 02:47 | 2017-08-09 | CMCO | COLUMBUS MCKINNON CORP | TEVENS TIMOTHY T | SELL | $31.76 | 24,913 | $791,237 | 268,623 | |
| 2017-08-17 18:36 | 2017-08-15 | CMCO | COLUMBUS MCKINNON CORP | Wozniak Kurt F | Officer | OPT+S | $31.64 | 13,205 | $417,755 | 26,286 |
| 2017-08-17 18:35 | 2017-08-15 | CMCO | COLUMBUS MCKINNON CORP | TEVENS TIMOTHY T | OPT+S | $32.01 | 9,723 | $311,233 | 293,536 | |
| 2017-08-10 18:49 | 2017-08-08 | CMCO | COLUMBUS MCKINNON CORP | TEVENS TIMOTHY T | OPT+S | $32.76 | 45,172 | $1,479,835 | 293,536 | |
| 2017-08-10 18:49 | 2017-08-08 | CMCO | COLUMBUS MCKINNON CORP | Buer Gene P | Officer | OPT+S | $32.67 | 28,795 | $940,733 | 34,344 |
| 2017-08-08 19:14 | 2017-08-04 | CMCO | COLUMBUS MCKINNON CORP | TEVENS TIMOTHY T | Director, Officer | OPT+S | $32.15 | 8,770 | $281,956 | 293,536 |
| 2017-08-08 19:14 | 2017-08-04 | CMCO | COLUMBUS MCKINNON CORP | Korman Alan S | Officer | OPT+S | $32.17 | 4,253 | $136,816 | 11,608 |
| 2017-08-08 01:18 | 2017-08-04 | CAT | CATERPILLAR INC | Long Suzette M | Officer | OPT+S | $114.30 | 13,859 | $1,584,084 | 17,536 |
| 2017-08-03 16:55 | 2017-08-02 | CMCO | COLUMBUS MCKINNON CORP | Buer Gene P | Officer | SELL | $31.66 | 10,669 | $337,781 | 24,090 |
| 2017-08-01 23:10 | 2017-07-28 | CAT | CATERPILLAR INC | OSBORN WILLIAM A | Director | SELL | $113.67 | 5,000 | $568,350 | 51,645 |
| 2017-08-01 03:02 | 2017-07-27 | CAT | CATERPILLAR INC | Johnson Denise C | Officer | OPT+S | $124.77 | 88,969 | $11,100,885 | 7,008 |
| 2017-08-01 04:45 | 2017-07-27 | CAT | CATERPILLAR INC | Halverson Bradley M | Officer | OPT+S | $114.05 | 182,612 | $20,827,647 | 7,814 |
| 2017-06-19 18:18 | 2017-06-07 | CMCO | COLUMBUS MCKINNON CORP | Buer Gene P | Officer | SELL | $27.75 | 5,147 | $142,829 | 34,759 |
| 2017-06-15 22:54 | 2017-06-13 | GENC | GENCOR INDUSTRIES INC | Mellen Eric E | Officer | SELL | $16.72 | 9,000 | $150,450 | 22,250 |
| 2017-06-15 00:31 | 2017-06-13 | GENC | GENCOR INDUSTRIES INC | Maingot Lawrence | Officer | SELL | $16.40 | 1,000 | $16,400 | 0 |
| 2017-06-13 23:14 | 2017-06-09 | GENC | GENCOR INDUSTRIES INC | ELLIOTT MARC G | Director, Officer | SELL | $16.22 | 4,421 | $71,706 | 430,175 |
| 2017-06-12 17:57 | 2017-06-07 | GENC | GENCOR INDUSTRIES INC | Houtkin Sherry | 10% owner | SELL | $15.90 | 26,352 | $418,978 | 1,449,772 |
| 2017-06-12 18:18 | 2017-06-09 | CMCO | COLUMBUS MCKINNON CORP | Korman Alan S | Officer | SELL | $28.71 | 1,000 | $28,710 | 13,361 |
| 2017-06-08 22:30 | 2017-06-05 | GENC | GENCOR INDUSTRIES INC | ELLIOTT MARC G | Director, Officer | SELL | $16.15 | 1,901 | $30,701 | 434,538 |
| 2017-06-07 23:10 | 2017-06-02 | GENC | GENCOR INDUSTRIES INC | Houtkin Sherry | 10% owner | SELL | $16.11 | 23,427 | $377,411 | 1,476,124 |
| 2017-06-07 21:29 | 2017-06-05 | GENC | GENCOR INDUSTRIES INC | Maingot Lawrence | Officer | SELL | $16.15 | 500 | $8,075 | 1,000 |
| 2017-06-07 18:04 | 2017-06-06 | CMCO | COLUMBUS MCKINNON CORP | Korman Alan S | Officer | SELL | $27.72 | 500 | $13,858 | 14,361 |
| 2017-06-05 21:42 | 2017-06-01 | CMCO | COLUMBUS MCKINNON CORP | Korman Alan S | Officer | SELL | $27.13 | 3,000 | $81,384 | 14,861 |
| 2017-06-01 00:26 | 2017-05-30 | GENC | GENCOR INDUSTRIES INC | Houtkin Sherry | 10% owner | SELL | $15.84 | 10,000 | $158,400 | 1,519,551 |
| 2017-05-26 20:34 | 2017-05-24 | GENC | GENCOR INDUSTRIES INC | Houtkin Sherry | 10% owner | SELL | $15.81 | 5,331 | $84,308 | 1,529,551 |
| 2017-05-24 01:38 | 2017-05-19 | GENC | GENCOR INDUSTRIES INC | Houtkin Sherry | 10% owner | SELL | $15.82 | 22,595 | $357,455 | 1,534,882 |
| 2017-05-19 23:01 | 2017-05-17 | GENC | GENCOR INDUSTRIES INC | Houtkin Sherry | 10% owner | SELL | $15.63 | 7,959 | $124,394 | 1,557,477 |
| 2017-05-17 18:34 | 2017-05-15 | GENC | GENCOR INDUSTRIES INC | Houtkin Sherry | 10% owner | SELL | $15.91 | 6,466 | $102,890 | 1,565,851 |
| 2017-05-12 19:16 | 2017-05-10 | GENC | GENCOR INDUSTRIES INC | Houtkin Sherry | 10% owner | SELL | $16.07 | 4,848 | $77,901 | 1,572,317 |
| 2017-05-10 23:06 | 2017-05-08 | GENC | GENCOR INDUSTRIES INC | Maingot Lawrence | Officer | SELL | $16.37 | 1,500 | $24,555 | 1,500 |
| 2017-05-10 03:34 | 2017-05-07 | GENC | GENCOR INDUSTRIES INC | Houtkin Sherry | 10% owner | SELL | $16.30 | 8,617 | $140,462 | 1,577,165 |
| 2017-03-07 01:36 | 2017-03-06 | PLOW | DOUGLAS DYNAMICS, INC | McCormick Robert L | Officer | SELL | $32.47 | 10,951 | $355,606 | 131,263 |
Sector-Wide Insider Alpha
Analyzing insider movements across the Construction Machinery & Equip sector provides a macro-view of executive conviction. When multiple leaders in different companies within the same SIC code (3531) simultaneously buy shares, it often indicates an industry-wide undervaluation or a positive shift in market cycles.
SEC Filings in Construction Machinery & Equip
Every transaction in the Construction Machinery & Equip industry is reported via Form 4 disclosures. By filtering these filings by industry, investors can detect institutional-scale sentiment shifts before they are reflected in broader market indices, following the capital flow of those with intimate industry knowledge.
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.