Industrial & Commercial Fans & Blowers & Air Purifing Equip
Standard Industrial Classification: SIC 3564
Industry Insider Sentiment Analysis
The Industrial & Commercial Fans & Blowers & Air Purifing Equip sector (SIC 3564) 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2005-09-03 00:48 | 2005-09-02 | CECO | CECO ENVIRONMENTAL CORP | Harvey Sandler Revocable Trust | 10% owner | BUY | $3.91 | 1,600 | $6,253 | 1,310,432 |
| 2005-09-01 20:28 | 2005-08-31 | FTEK | FUEL TECH, INC. | SUN WILLIAM H | Officer | SELL | $7.24 | 35,000 | $253,407 | 0 |
| 2005-08-31 17:47 | 2005-08-29 | CECO | CECO ENVIRONMENTAL CORP | Harvey Sandler Revocable Trust | 10% owner | BUY | $4.19 | 7,500 | $31,425 | 1,308,832 |
| 2005-08-25 01:54 | 2005-08-22 | CECO | CECO ENVIRONMENTAL CORP | Harvey Sandler Revocable Trust | 10% owner | BUY | $3.80 | 28,106 | $106,910 | 1,301,332 |
| 2005-08-23 17:54 | 2005-08-19 | FTEK | FUEL TECH, INC. | GRINNELL CHARLES W | Director, Officer | OPT+S | $6.35 | 19,425 | $123,349 | 26,089 |
| 2005-08-23 17:50 | 2005-08-12 | FTEK | FUEL TECH, INC. | GRINNELL CHARLES W | Director, Officer | OPT+S | $6.39 | 23,600 | $150,693 | 26,089 |
| 2005-08-19 18:11 | 2005-08-16 | FTEK | FUEL TECH, INC. | GRINNELL CHARLES W | Director, Officer | OPT+S | $6.35 | 14,475 | $91,923 | 26,089 |
| 2005-08-18 22:40 | 2005-08-16 | CECO | CECO ENVIRONMENTAL CORP | Harvey Sandler Revocable Trust | 10% owner | BUY | $3.65 | 12,000 | $43,800 | 1,273,226 |
| 2005-08-16 22:49 | 2005-08-12 | FTEK | FUEL TECH, INC. | GRINNELL CHARLES W | Director, Officer | OPT+S | $6.39 | 23,000 | $146,883 | 26,089 |
| 2005-08-15 18:53 | 2005-08-03 | CECO | CECO ENVIRONMENTAL CORP | Harvey Sandler Revocable Trust | 10% owner | BUY | $3.64 | 19,000 | $69,122 | 1,261,226 |
| 2005-08-03 20:27 | 2005-08-02 | CECO | CECO ENVIRONMENTAL CORP | Harvey Sandler Revocable Trust | 10% owner | BUY | $3.35 | 1,000 | $3,350 | 1,242,226 |
| 2005-08-01 23:02 | 2005-07-28 | CECO | CECO ENVIRONMENTAL CORP | Harvey Sandler Revocable Trust | 10% owner | BUY | $3.25 | 764 | $2,483 | 1,241,226 |
| 2005-07-19 00:57 | 2005-05-16 | CECO | CECO ENVIRONMENTAL CORP | Harvey Sandler Revocable Trust | 10% owner | BUY | $2.97 | 198,156 | $587,552 | 1,240,462 |
| 2005-07-08 00:15 | 2005-07-07 | PPIH | Perma-Pipe International Holdings, Inc. | KESSLER DENNIS | Director | OPT+S | $6.75 | 5,000 | $33,750 | 0 |
| 2005-06-21 00:10 | 2005-06-16 | FTEK | FUEL TECH, INC. | ALBANESE VINCENT M | Officer | OPT+S | $6.15 | 50,000 | $307,500 | 3,750 |
| 2005-06-14 22:39 | 2005-06-10 | DCI | DONALDSON Co INC | GIERTZ JAMES R | Officer | SELL | $31.58 | 19,048 | $601,623 | 223,020 |
| 2005-05-18 23:49 | 2005-05-16 | CECO | CECO ENVIRONMENTAL CORP | DEZWIREK PHILLIP | Director, Officer, 10% owner | BUY | $2.20 | 55,000 | $121,000 | 310,697 |
| 2005-04-08 23:15 | 2005-04-08 | DCI | DONALDSON Co INC | SCHWAB LOWELL F | Officer | SELL | $31.51 | 20,897 | $658,464 | 148,110 |
| 2005-04-05 03:02 | 2005-03-30 | FTEK | FUEL TECH, INC. | BRADY STEPHEN P | Officer | OPT+S | $6.10 | 10,000 | $61,000 | 10,000 |
| 2005-03-30 22:31 | 2005-03-28 | FTEK | FUEL TECH, INC. | BRADY STEPHEN P | Officer | OPT+S | $6.32 | 10,000 | $63,200 | 10,000 |
| 2005-01-20 17:39 | 2005-01-03 | PPIH | Perma-Pipe International Holdings, Inc. | BENNETT MICHAEL D | Officer | OPT+S | $11.25 | 1,635 | $18,394 | 10,694 |
| 2005-01-20 18:53 | 2005-01-13 | PPIH | Perma-Pipe International Holdings, Inc. | ELGENDY FATI A | Officer | OPT+S | $7.86 | 7,900 | $62,095 | 0 |
| 2005-01-18 17:55 | 2005-01-14 | PPIH | Perma-Pipe International Holdings, Inc. | MAUTNER BRADLEY E | Director, Officer | OPT+S | $7.72 | 3,925 | $30,315 | 156,205 |
| 2005-01-14 19:43 | 2005-01-13 | PPIH | Perma-Pipe International Holdings, Inc. | MAUTNER BRADLEY E | Director, Officer | OPT+S | $7.85 | 200 | $1,569 | 156,205 |
| 2005-01-14 01:13 | 2005-01-12 | PPIH | Perma-Pipe International Holdings, Inc. | BENNETT MICHAEL D | Officer | OPT+S | $7.57 | 4,240 | $32,097 | 10,964 |
| 2005-01-14 01:14 | 2005-01-12 | PPIH | Perma-Pipe International Holdings, Inc. | MAUTNER BRADLEY E | Director, Officer | OPT+S | $7.90 | 2,000 | $15,800 | 156,205 |
| 2005-01-11 00:11 | 2005-01-07 | PPIH | Perma-Pipe International Holdings, Inc. | ELGENDY FATI A | Officer | OPT+S | $8.50 | 10,300 | $87,574 | 0 |
| 2005-01-05 01:09 | 2004-01-03 | PPIH | Perma-Pipe International Holdings, Inc. | BENNETT MICHAEL D | Officer | OPT+S | $11.25 | 1,635 | $18,394 | 10,694 |
| 2005-01-04 00:12 | 2004-12-31 | PPIH | Perma-Pipe International Holdings, Inc. | BENSON THOMAS A | Officer | OPT+S | $11.25 | 5,750 | $64,715 | 0 |
| 2004-12-30 01:38 | 2004-12-28 | PPIH | Perma-Pipe International Holdings, Inc. | OGILVIE GENE K | Officer | SELL | $10.01 | 9,175 | $91,842 | 25,252 |
| 2004-12-29 00:01 | 2004-12-28 | PPIH | Perma-Pipe International Holdings, Inc. | SCHWARTZ STEPHEN B | Director | OPT+S | $9.72 | 8,750 | $85,050 | 0 |
| 2004-12-28 00:23 | 2004-12-23 | PPIH | Perma-Pipe International Holdings, Inc. | ELGENDY FATI A | Officer | SELL | $8.76 | 25,483 | $223,231 | 0 |
| 2004-12-22 01:26 | 2004-12-17 | PPIH | Perma-Pipe International Holdings, Inc. | OGILVIE GENE K | Officer | OPT+S | $8.77 | 30,775 | $269,869 | 0 |
| 2004-12-22 02:00 | 2004-12-20 | PPIH | Perma-Pipe International Holdings, Inc. | BENNETT MICHAEL D | Officer | OPT+S | $8.79 | 27,000 | $237,333 | 0 |
| 2004-12-15 20:53 | 2004-12-14 | CECO | CECO ENVIRONMENTAL CORP | WRIGHT DONALD | Director | SELL | $3.51 | 15,000 | $52,650 | 10,000 |
| 2004-10-29 00:59 | 2004-10-27 | PPIH | Perma-Pipe International Holdings, Inc. | MAUTNER BRADLEY E | Director, Officer | OPT+S | $5.88 | 8,125 | $47,775 | 148,280 |
| 2004-10-21 21:46 | 2004-10-19 | PPIH | Perma-Pipe International Holdings, Inc. | MAUTNER BRADLEY E | Director, Officer | OPT+S | $6.16 | 1,000 | $6,160 | 155,405 |
| 2004-10-04 22:08 | 2004-10-01 | PPIH | Perma-Pipe International Holdings, Inc. | BENSON THOMAS A | Officer | OPT+S | $5.55 | 8,625 | $47,869 | 0 |
| 2004-10-01 21:40 | 2004-09-29 | PPIH | Perma-Pipe International Holdings, Inc. | BENSON THOMAS A | Officer | OPT+S | $5.52 | 5,750 | $31,740 | 0 |
| 2004-09-24 00:53 | 2004-09-22 | PPIH | Perma-Pipe International Holdings, Inc. | ELGENDY FATI A | Officer | SELL | $6.30 | 5,000 | $31,500 | 25,483 |
| 2004-09-21 17:33 | 2004-09-20 | DCI | DONALDSON Co INC | SCHWAB LOWELL F | Officer | SELL | $29.01 | 17,432 | $505,748 | 141,967 |
| 2004-09-20 22:54 | 2004-09-20 | DCI | DONALDSON Co INC | PRIADKA NICKOLAS | Officer | SELL | $28.90 | 10,104 | $292,006 | 347,316 |
| 2004-09-20 22:53 | 2004-09-17 | DCI | DONALDSON Co INC | PRIADKA NICKOLAS | Officer | SELL | $29.07 | 10,000 | $290,700 | 357,420 |
| 2004-09-09 22:47 | 2004-09-09 | DCI | DONALDSON Co INC | VAN DYKE WILLIAM G | Director, Officer | SELL | $29.25 | 20,064 | $586,872 | 826,898 |
| 2004-06-21 19:30 | 2004-06-17 | CECO | CECO ENVIRONMENTAL CORP | DEZWIREK PHILLIP | Director, Officer, 10% owner | BUY | $1.50 | 60,000 | $90,000 | 2,281,760 |
| 2004-06-21 19:23 | 2004-06-17 | CECO | CECO ENVIRONMENTAL CORP | ICARUS INVESTMENT CORP | 10% owner | BUY | $1.50 | 60,000 | $90,000 | 947,400 |
| 2004-06-21 19:20 | 2004-06-17 | CECO | CECO ENVIRONMENTAL CORP | DEZWIREK JASON LOUIS | Director, Officer, 10% owner | BUY | $1.50 | 60,000 | $90,000 | 3,880,426 |
| 2004-06-04 01:12 | 2004-06-02 | DCI | DONALDSON Co INC | VAN DYKE WILLIAM G | Director, Officer | SELL | $26.90 | 20,000 | $538,000 | 844,463 |
| 2004-06-02 19:52 | 2004-06-01 | DCI | DONALDSON Co INC | VAN DYKE WILLIAM G | Director, Officer | SELL | $26.71 | 10,000 | $267,054 | 864,463 |
| 2004-04-20 21:33 | 2004-04-15 | CECO | CECO ENVIRONMENTAL CORP | DEZWIREK PHILLIP | Director, Officer, 10% owner | BUY | $1.55 | 70,000 | $108,500 | 255,697 |
Sector-Wide Insider Alpha
Analyzing insider movements across the Industrial & Commercial Fans & Blowers & Air Purifing Equip sector provides a macro-view of executive conviction. When multiple leaders in different companies within the same SIC code (3564) simultaneously buy shares, it often indicates an industry-wide undervaluation or a positive shift in market cycles.
SEC Filings in Industrial & Commercial Fans & Blowers & Air Purifing Equip
Every transaction in the Industrial & Commercial Fans & Blowers & Air Purifing 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.