Special Industry Machinery (No Metalworking Machinery)
Standard Industrial Classification: SIC 3550
Industry Insider Sentiment Analysis
The Special Industry Machinery (No Metalworking Machinery) sector (SIC 3550) 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-03-30 22:04 | 2026-02-11 | NVT | nVent Electric plc | Wozniak Beth | Officer | SELL | $116.47 | 7,597 | $884,823 | 37,796 |
| 2026-03-05 02:07 | 2026-03-02 | JBTM | JBT MAREL Corp | Deck Brian A | Director, Officer | SELL | $150.98 | 18,634 | $2,813,404 | 127,667 |
| 2026-02-28 00:41 | 2026-02-25 | PNR | PENTAIR plc | Rolchigo Philip M. | Officer | OPT+S | $103.22 | 6,493 | $670,207 | 29,096 |
| 2026-02-13 01:37 | 2026-02-10 | NVT | nVent Electric plc | CAMERON SUSAN M. | Director | SELL | $114.52 | 5,000 | $572,600 | 13,405 |
| 2026-02-13 01:43 | 2026-02-11 | NVT | nVent Electric plc | Wozniak Beth | Officer | SELL | $116.47 | 7,597 | $884,823 | 52,990 |
| 2026-02-13 01:28 | 2026-02-11 | PNR | PENTAIR plc | Speetzen Michael T | Director | SELL | $99.99 | 7,000 | $699,945 | 8,290 |
| 2026-02-11 00:26 | 2026-02-09 | NVT | nVent Electric plc | van der Kolk Robert J. | Officer | SELL | $116.89 | 21,500 | $2,513,178 | 19,349 |
| 2026-02-11 00:22 | 2026-02-09 | NVT | nVent Electric plc | Ostling Danita K | Director | SELL | $117.98 | 900 | $106,181 | 4,748 |
| 2026-02-10 01:48 | 2026-02-06 | NVT | nVent Electric plc | BURRIS JERRY W | Director | OPT+S | $112.27 | 5,244 | $588,744 | 46,371 |
| 2026-01-17 01:49 | 2025-08-13 | NVT | nVent Electric plc | Leopold Diane | Director | BUY | $89.85 | 2,000 | $179,703 | 2,000 |
| 2025-12-11 22:50 | 2025-12-10 | JBTM | JBT MAREL Corp | Gudmundsson Olafur S | Director | SELL | $150.09 | 10,000 | $1,500,900 | 9,980 |
| 2025-12-03 00:37 | 2025-12-01 | PNR | PENTAIR plc | GLENN T MICHAEL | Director | OPT+S | $104.33 | 6,558 | $684,196 | 31,192 |
| 2025-12-02 02:47 | 2025-11-26 | JBTM | JBT MAREL Corp | Gudmundsson Olafur S | Director | SELL | $141.79 | 20,000 | $2,835,894 | 19,980 |
| 2025-11-26 16:16 | 2025-11-25 | KAI | KADANT INC | Russell Erin L | Director | SELL | $282.36 | 1,435 | $405,180 | 3,066 |
| 2025-11-26 01:22 | 2025-11-24 | NVT | nVent Electric plc | Scheu Greg | Director | SELL | $104.04 | 5,591 | $581,688 | 14,348 |
| 2025-11-22 00:37 | 2025-11-20 | NVT | nVent Electric plc | Wozniak Beth | Officer | OPT+S | $110.35 | 4,137 | $456,501 | 47,984 |
| 2025-11-19 01:50 | 2025-11-14 | PNR | PENTAIR plc | Fishman Robert P | Officer | OPT+S | $105.42 | 7,786 | $820,765 | 63,164 |
| 2025-11-12 16:34 | 2025-11-11 | KAI | KADANT INC | O'Mara Rebecca Martinez | Director | SELL | $266.91 | 699 | $186,569 | 1,141 |
| 2025-11-08 00:09 | 2025-11-05 | NVT | nVent Electric plc | Zawoyski Sara E | Officer | OPT+S | $112.78 | 115,557 | $13,032,056 | 66,680 |
| 2025-11-08 00:07 | 2025-11-06 | NVT | nVent Electric plc | Wacker Randolph A. | Officer | OPT+S | $110.08 | 5,000 | $550,400 | 26,400 |
| 2025-11-06 01:11 | 2025-11-03 | NVT | nVent Electric plc | Heath Lynnette R | Officer | OPT+S | $113.04 | 32,943 | $3,723,933 | 30,562 |
| 2025-08-28 15:36 | 2025-08-27 | KAI | KADANT INC | LEONARD THOMAS C | Director | SELL | $338.41 | 415 | $140,442 | 4,250 |
| 2025-08-20 23:41 | 2025-08-18 | NVT | nVent Electric plc | Wozniak Beth | Officer | OPT+S | $89.21 | 42,331 | $3,776,349 | 49,196 |
| 2025-08-19 23:29 | 2025-08-18 | KAI | KADANT INC | Blanchard Thomas Andrew | Officer | SELL | $343.00 | 714 | $244,902 | 1,188 |
| 2025-08-13 23:31 | 2025-08-12 | NVT | nVent Electric plc | Padmanabhan Aravind | Officer | OPT+S | $90.00 | 24,534 | $2,208,060 | 12,063 |
| 2025-08-08 23:34 | 2025-08-07 | NVT | nVent Electric plc | Wacker Randolph A. | Officer | SELL | $89.09 | 3,000 | $267,270 | 27,525 |
| 2025-08-06 23:57 | 2025-08-05 | NVT | nVent Electric plc | Zawoyski Sara E | Officer | OPT+S | $89.54 | 22,109 | $1,979,567 | 66,640 |
| 2025-08-06 23:54 | 2025-08-05 | NVT | nVent Electric plc | Heath Lynnette R | Officer | OPT+S | $89.33 | 17,853 | $1,594,732 | 30,512 |
| 2025-08-06 23:44 | 2025-08-04 | NVT | nVent Electric plc | van der Kolk Robert J. | Officer | OPT+S | $89.14 | 10,993 | $979,911 | 40,772 |
| 2025-08-06 23:50 | 2025-08-04 | NVT | nVent Electric plc | Lammers Jon D. | Officer | OPT+S | $89.48 | 119,694 | $10,709,848 | 70,817 |
| 2025-08-06 23:47 | 2025-08-04 | NVT | nVent Electric plc | Parker Herbert K | Director | SELL | $89.88 | 20,597 | $1,851,353 | 15,070 |
| 2025-06-13 23:14 | 2025-06-13 | KAI | KADANT INC | Flynn Peter J. | Officer | SELL | $320.00 | 1,500 | $480,000 | 2,619 |
| 2025-05-28 19:37 | 2025-05-27 | JBTM | JBT MAREL Corp | Rizzolo Luiz Augusto | Officer | SELL | $118.55 | 1,271 | $150,677 | 6,342 |
| 2025-05-09 23:56 | 2025-05-08 | NVT | nVent Electric plc | Heath Lynnette R | Officer | SELL | $61.35 | 4,041 | $247,915 | 32,665 |
| 2025-04-30 00:07 | 2025-04-28 | PNR | PENTAIR plc | JONES DAVID A /WI | Director | OPT+S | $89.94 | 6,558 | $589,827 | 26,313 |
| 2025-03-20 16:05 | 2025-03-19 | KAI | KADANT INC | Blanchard Thomas Andrew | Officer | SELL | $341.59 | 325 | $111,018 | 1,902 |
| 2025-03-04 00:14 | 2025-02-28 | KAI | KADANT INC | MCKENNEY MICHAEL J | Officer | SELL | $370.58 | 8,026 | $2,974,286 | 10,939 |
| 2025-02-15 01:53 | 2025-02-14 | PNR | PENTAIR plc | Pilla Stephen J | Officer | SELL | $98.14 | 7,200 | $706,608 | 15,099 |
| 2024-12-05 00:43 | 2024-12-02 | PNR | PENTAIR plc | GLENN T MICHAEL | Director | OPT+S | $109.14 | 4,008 | $437,433 | 29,895 |
| 2024-11-27 00:15 | 2024-11-25 | NVT | nVent Electric plc | BURRIS JERRY W | Director | OPT+S | $80.00 | 6,558 | $524,640 | 45,040 |
| 2024-11-26 00:41 | 2024-11-22 | NVT | nVent Electric plc | van der Kolk Robert J. | Officer | SELL | $78.16 | 4,000 | $312,644 | 35,297 |
| 2024-11-20 00:07 | 2024-11-18 | KAI | KADANT INC | Westerhout Fredrik H | Officer | SELL | $397.25 | 600 | $238,352 | 1,437 |
| 2024-11-20 00:08 | 2024-11-19 | KAI | KADANT INC | Mitchell Dara F | Officer | SELL | $397.64 | 1,001 | $398,041 | 248 |
| 2024-11-20 00:11 | 2024-11-19 | KAI | KADANT INC | LEONARD THOMAS C | Director | SELL | $398.22 | 152 | $60,529 | 4,250 |
| 2024-11-18 16:09 | 2024-11-15 | KAI | KADANT INC | O'Mara Rebecca Martinez | Director | SELL | $392.59 | 300 | $117,778 | 1,293 |
| 2024-11-14 00:04 | 2024-11-12 | KAI | KADANT INC | Colwell Michael C. | Officer | SELL | $396.56 | 497 | $197,090 | 2,148 |
| 2024-11-14 01:32 | 2024-11-12 | NVT | nVent Electric plc | Zawoyski Sara E | Officer | OPT+S | $76.76 | 14,505 | $1,113,404 | 62,215 |
| 2024-11-08 01:46 | 2024-11-06 | NVT | nVent Electric plc | Wacker Randolph A. | Officer | OPT+S | $75.87 | 8,022 | $608,597 | 25,993 |
| 2024-11-08 02:03 | 2024-11-06 | NVT | nVent Electric plc | Lammers Jon D. | Officer | OPT+S | $76.07 | 67,297 | $5,119,316 | 58,121 |
| 2024-11-06 01:50 | 2024-11-01 | PNR | PENTAIR plc | Rolchigo Philip M. | Officer | OPT+S | $99.67 | 3,588 | $357,616 | 19,232 |
Sector-Wide Insider Alpha
Analyzing insider movements across the Special Industry Machinery (No Metalworking Machinery) sector provides a macro-view of executive conviction. When multiple leaders in different companies within the same SIC code (3550) simultaneously buy shares, it often indicates an industry-wide undervaluation or a positive shift in market cycles.
SEC Filings in Special Industry Machinery (No Metalworking Machinery)
Every transaction in the Special Industry Machinery (No Metalworking Machinery) 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.