Special Industry Machinery, NEC
Standard Industrial Classification: SIC 3559
Industry Insider Sentiment Analysis
The Special Industry Machinery, NEC sector (SIC 3559) 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-02-10 01:57 | 2026-02-05 | ERII | Energy Recovery, Inc. | Yeung William | Officer | SELL | $14.82 | 1,536 | $22,766 | 78,208 |
| 2026-02-10 01:53 | 2026-02-05 | ERII | Energy Recovery, Inc. | Clemente Rodney | Officer | SELL | $14.59 | 724 | $10,563 | 90,950 |
| 2026-02-09 22:00 | 2026-02-06 | LRCX | LAM RESEARCH CORP | BRANDT ERIC | Director | SELL | $225.60 | 35,000 | $7,896,151 | 253,705 |
| 2026-02-04 01:21 | 2026-01-28 | ERII | Energy Recovery, Inc. | Yeung William | Officer | SELL | $14.54 | 8,000 | $116,334 | 79,744 |
| 2026-01-20 19:26 | 2026-01-06 | TRT | TRIO-TECH INTERNATIONAL | TING HOCK MING | Director | SELL | $6.77 | 6,070 | $41,065 | 183,644 |
| 2026-01-14 17:08 | 2026-01-12 | TRT | TRIO-TECH INTERNATIONAL | TING HOCK MING | Director | SELL | $7.08 | 5,000 | $35,410 | 189,714 |
| 2026-01-10 00:14 | 2026-01-07 | TRT | TRIO-TECH INTERNATIONAL | HOROWITZ RICHARD M | Director, 10% owner | SELL | $7.50 | 7,500 | $56,278 | 621,500 |
| 2026-01-09 18:11 | 2026-01-07 | TRT | TRIO-TECH INTERNATIONAL | TING HOCK MING | Director | SELL | $7.37 | 6,600 | $48,612 | 194,714 |
| 2026-01-08 00:41 | 2026-01-05 | CRCT | Cricut, Inc. | Ashish Arora | Director, Officer, 10% owner | SELL | $4.91 | 62,499 | $306,764 | 4,177,922 |
| 2025-12-29 16:08 | 2025-12-22 | CRCT | Cricut, Inc. | Ashish Arora | Director, Officer, 10% owner | SELL | $5.01 | 62,499 | $313,214 | 4,240,421 |
| 2025-12-23 01:46 | 2025-12-22 | GLGI | GREYSTONE LOGISTICS, INC. | KRUGER WARREN F | Director, Officer, 10% owner | BUY | $0.58 | 17,500 | $10,150 | 8,884,354 |
| 2025-12-18 20:55 | 2025-12-17 | LRCX | LAM RESEARCH CORP | ARCHER TIMOTHY | Officer | OPT+S | $163.86 | 163,300 | $26,758,338 | 932,409 |
| 2025-12-19 01:05 | 2025-12-17 | ACLS | Axcelis Technologies, Inc. | Titinger Jorge | Director | SELL | $86.05 | 2,000 | $172,100 | 7,477 |
| 2025-12-13 01:05 | 2025-12-11 | ACLS | Axcelis Technologies, Inc. | Blumenstock Gerald M | Officer | SELL | $89.46 | 3,034 | $271,422 | 18,661 |
| 2025-12-13 00:30 | 2025-12-10 | VECO | VEECO INSTRUMENTS INC | Wilkerson Susan | Officer | SELL | $31.88 | 33,000 | $1,052,040 | 52,155 |
| 2025-12-11 00:39 | 2025-12-08 | CRCT | Cricut, Inc. | Ashish Arora | Director, Officer, 10% owner | SELL | $5.06 | 62,960 | $318,659 | 4,302,920 |
| 2025-12-09 05:00 | 2025-12-04 | ACMR | Acm Research Inc. | McKechnie Mark | Officer | OPT+S | $34.93 | 31,250 | $1,091,506 | 900 |
| 2025-12-09 00:50 | 2025-12-04 | ERII | Energy Recovery, Inc. | Hanstveit Arve | Director | SELL | $14.84 | 30,000 | $445,110 | 625,220 |
| 2025-12-06 00:30 | 2025-12-03 | ACMR | Acm Research Inc. | Wang David H | Director, Officer, 10% owner | OPT+S | $33.55 | 130,000 | $4,361,474 | 802,708 |
| 2025-12-06 00:30 | 2025-12-05 | VECO | VEECO INSTRUMENTS INC | Miller William John | Director, Officer | SELL | $32.00 | 25,000 | $800,000 | 464,543 |
| 2025-12-05 00:30 | 2025-12-02 | ACMR | Acm Research Inc. | Chen Fuping | Officer | OPT+S | $33.18 | 120,000 | $3,981,156 | 0 |
| 2025-12-03 00:30 | 2025-12-02 | VECO | VEECO INSTRUMENTS INC | Miller William John | Director, Officer | SELL | $29.10 | 25,000 | $727,500 | 489,543 |
| 2025-12-01 16:11 | 2025-11-26 | CRCT | Cricut, Inc. | Ashish Arora | Director, Officer, 10% owner | SELL | $4.79 | 20,372 | $97,661 | 4,365,880 |
| 2025-11-26 01:22 | 2025-11-21 | CRCT | Cricut, Inc. | Ashish Arora | Director, Officer, 10% owner | SELL | $4.82 | 104,189 | $502,149 | 4,386,252 |
| 2025-11-26 00:28 | 2025-05-16 | AZTA | Azenta, Inc. | Cornog William L | Director | BUY | $27.13 | 7,000 | $189,883 | 25,795 |
| 2025-11-20 23:41 | 2025-11-11 | GLGI | GREYSTONE LOGISTICS, INC. | KRUGER WARREN F | Director, Officer, 10% owner | BUY | $0.71 | 5,000 | $3,531 | 8,866,854 |
| 2025-11-17 20:58 | 2025-11-14 | LRCX | LAM RESEARCH CORP | Bettinger Douglas R | Officer | SELL | $150.60 | 40,080 | $6,036,048 | 987,237 |
| 2025-11-15 00:10 | 2025-08-12 | AZTA | Azenta, Inc. | Pirogova Olga | Officer | SELL | $28.54 | 1,085 | $30,966 | 18,288 |
| 2025-11-15 00:10 | 2025-08-12 | AZTA | Azenta, Inc. | Zhou Ginger | Officer | SELL | $28.54 | 1,085 | $30,966 | 26,831 |
| 2025-11-15 00:10 | 2025-06-02 | AZTA | Azenta, Inc. | Marotta John | Director, Officer | BUY | $25.99 | 1,000 | $25,990 | 107,296 |
| 2025-11-15 00:30 | 2025-11-12 | ACMR | Acm Research Inc. | Feng Lisa | Officer | OPT+S | $33.27 | 30,000 | $997,950 | 50,001 |
| 2025-11-15 00:10 | 2025-05-30 | AZTA | Azenta, Inc. | Malus Alan J | Director | BUY | $26.65 | 12,000 | $319,800 | 17,035 |
| 2025-11-14 23:19 | 2025-05-20 | GLGI | GREYSTONE LOGISTICS, INC. | Lockard Drew T. | Director | BUY | $1.22 | 64,600 | $79,070 | 76,600 |
| 2025-11-11 00:27 | 2025-11-07 | LRCX | LAM RESEARCH CORP | Mayer Bethany | Director | SELL | $159.52 | 30 | $4,786 | 3,257 |
| 2025-11-05 02:05 | 2025-11-03 | LRCX | LAM RESEARCH CORP | Mayer Bethany | Director | SELL | $159.99 | 1,298 | $207,667 | 1,652 |
| 2025-10-28 18:53 | 2025-10-27 | LRCX | LAM RESEARCH CORP | Harter Ava | Officer | OPT+S | $157.47 | 9,010 | $1,418,775 | 56,786 |
| 2025-10-28 00:28 | 2025-10-23 | ERII | Energy Recovery, Inc. | Yeung William | Officer | OPT+S | $17.86 | 12,698 | $226,799 | 97,369 |
| 2025-10-24 22:14 | 2025-10-23 | SOTK | SONO TEK CORP | COCCIO CHRISTOPHER L | Director | SELL | $4.78 | 12,320 | $58,893 | 309,447 |
| 2025-10-24 02:25 | 2025-10-21 | SOTK | SONO TEK CORP | COCCIO CHRISTOPHER L | Director | SELL | $4.66 | 4,312 | $20,075 | 321,767 |
| 2025-10-23 01:09 | 2025-10-20 | ERII | Energy Recovery, Inc. | Yeung William | Officer | OPT+S | $17.00 | 3,530 | $60,010 | 97,369 |
| 2025-10-18 00:07 | 2025-10-15 | CRCT | Cricut, Inc. | Ashish Arora | Director, Officer, 10% owner | SELL | $5.35 | 49,665 | $265,862 | 2,668,146 |
| 2025-10-17 23:40 | 2025-10-16 | ERII | Energy Recovery, Inc. | Yeung William | Officer | OPT+S | $16.50 | 3,530 | $58,245 | 97,369 |
| 2025-10-14 18:40 | 2025-10-13 | LRCX | LAM RESEARCH CORP | Vahedi Vahid | Officer | SELL | $138.90 | 52,190 | $7,249,191 | 251,047 |
| 2025-10-09 01:08 | 2025-10-06 | CRCT | Cricut, Inc. | Ashish Arora | Director, Officer, 10% owner | SELL | $5.70 | 63,750 | $363,063 | 2,717,811 |
| 2025-10-08 00:11 | 2025-10-03 | ERII | Energy Recovery, Inc. | Yeung William | Officer | OPT+S | $16.00 | 3,567 | $57,072 | 97,369 |
| 2025-10-03 23:45 | 2025-10-02 | VECO | VEECO INSTRUMENTS INC | Devasahayam Adrian | Officer | SELL | $34.00 | 3,851 | $130,934 | 78,269 |
| 2025-10-03 23:30 | 2025-10-01 | VECO | VEECO INSTRUMENTS INC | Miller William John | Director, Officer | SELL | $32.00 | 25,000 | $800,000 | 514,543 |
| 2025-09-26 01:01 | 2025-09-23 | CRCT | Cricut, Inc. | Ashish Arora | Director, Officer, 10% owner | SELL | $6.65 | 63,750 | $423,969 | 2,781,561 |
| 2025-09-25 00:20 | 2025-09-23 | VECO | VEECO INSTRUMENTS INC | Devasahayam Adrian | Officer | SELL | $30.00 | 4,014 | $120,420 | 82,120 |
| 2025-09-23 02:18 | 2025-09-18 | ERII | Energy Recovery, Inc. | Yeung William | Officer | OPT+S | $15.09 | 15,454 | $233,139 | 97,369 |
Sector-Wide Insider Alpha
Analyzing insider movements across the Special Industry Machinery, NEC sector provides a macro-view of executive conviction. When multiple leaders in different companies within the same SIC code (3559) simultaneously buy shares, it often indicates an industry-wide undervaluation or a positive shift in market cycles.
SEC Filings in Special Industry Machinery, NEC
Every transaction in the Special Industry Machinery, NEC 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.