Surgical & Medical Instruments & Apparatus
Standard Industrial Classification: SIC 3841
Industry Insider Sentiment Analysis
The Surgical & Medical Instruments & Apparatus sector (SIC 3841) 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2025-03-06 02:12 | 2025-03-03 | LUNG | Pulmonx Corp | Joshi Mehul | Officer | SELL | $7.12 | 14,384 | $102,414 | 113,986 |
| 2025-03-06 02:09 | 2025-03-03 | LUNG | Pulmonx Corp | Williamson Steven S. | Director, Officer | SELL | $7.14 | 27,689 | $197,699 | 194,342 |
| 2025-03-06 02:04 | 2025-03-03 | LUNG | Pulmonx Corp | Lehman David Aaron | Officer | SELL | $7.65 | 22,355 | $170,922 | 175,496 |
| 2025-03-06 02:02 | 2025-03-03 | LUNG | Pulmonx Corp | Rose Geoffrey Beran | Officer | SELL | $7.13 | 5,779 | $41,193 | 285,278 |
| 2025-03-06 04:31 | 2025-03-04 | CERS | CERUS CORP | Jensen Chrystal | Officer | OPT+S | $1.58 | 66,292 | $104,887 | 405,198 |
| 2025-03-06 04:30 | 2025-03-04 | CERS | CERUS CORP | Jayaraman Vivek K | Officer | OPT+S | $1.55 | 10,780 | $16,693 | 905,828 |
| 2025-03-06 04:29 | 2025-03-04 | CERS | CERUS CORP | Greenman William Mariner | Director, Officer | OPT+S | $1.55 | 23,023 | $35,651 | 3,230,000 |
| 2025-03-06 04:27 | 2025-03-03 | CERS | CERUS CORP | Green Kevin Dennis | Officer | OPT+S | $1.57 | 69,042 | $108,658 | 493,862 |
| 2025-03-06 04:23 | 2025-03-03 | CERS | CERUS CORP | Benjamin Richard J | Officer | OPT+S | $1.57 | 57,546 | $90,572 | 394,373 |
| 2025-03-05 00:51 | 2025-03-03 | RMD | RESMED INC | Rider Michael J | Officer | SELL | $234.10 | 64 | $14,982 | 8,910 |
| 2025-03-05 05:07 | 2025-03-03 | MMSI | MERIT MEDICAL SYSTEMS INC | Peterson Neil | Officer | OPT+S | $105.00 | 5,000 | $525,000 | 28,369 |
| 2025-03-05 01:25 | 2025-03-03 | RMD | RESMED INC | Ghoshal Kaushik | Officer | OPT+S | $235.40 | 9,113 | $2,145,186 | 9,725 |
| 2025-03-05 05:06 | 2025-03-03 | MMSI | MERIT MEDICAL SYSTEMS INC | Evans Stephen C. | Director | SELL | $105.31 | 5,000 | $526,550 | 4,657 |
| 2025-03-05 00:19 | 2025-03-03 | NVCR | NovoCure Ltd | Weinberg Uri | Officer | SELL | $18.92 | 268 | $5,071 | 166,243 |
| 2025-03-05 00:19 | 2025-03-03 | NVCR | NovoCure Ltd | Leonard Frank X | Officer | SELL | $18.54 | 2,527 | $46,841 | 143,673 |
| 2025-03-05 00:19 | 2025-03-03 | NVCR | NovoCure Ltd | Cordova Ashley | Officer | SELL | $18.54 | 2,053 | $38,055 | 204,005 |
| 2025-03-05 00:16 | 2025-03-03 | NVCR | NovoCure Ltd | Paravasthu Mukund | Officer | SELL | $18.54 | 250 | $4,634 | 29,173 |
| 2025-03-05 02:30 | 2025-03-04 | TMCI | TREACE MEDICAL CONCEPTS, INC. | Treace John T. | Director, Officer, 10% owner | BUY | $8.73 | 60,000 | $524,064 | 6,796,190 |
| 2025-03-05 00:05 | 2025-03-03 | IRTC | iRhythm Holdings, Inc. | Blackford Quentin S. | Director, Officer | SELL | $108.77 | 8,145 | $885,932 | 208,741 |
| 2025-03-05 00:05 | 2025-03-03 | IRTC | iRhythm Holdings, Inc. | Rosenbaum Marc W. | Officer | SELL | $108.77 | 314 | $34,154 | 11,507 |
| 2025-03-05 00:04 | 2025-03-03 | IRTC | iRhythm Holdings, Inc. | Smith Mervin | Officer | SELL | $108.77 | 638 | $69,395 | 16,454 |
| 2025-03-05 00:04 | 2025-03-03 | IRTC | iRhythm Holdings, Inc. | Murphy Patrick Michael | Officer | SELL | $108.77 | 3,075 | $334,468 | 55,759 |
| 2025-03-05 00:03 | 2025-03-03 | IRTC | iRhythm Holdings, Inc. | Patterson Chad | Officer | SELL | $108.77 | 2,756 | $299,770 | 58,440 |
| 2025-03-05 00:02 | 2025-03-03 | IRTC | iRhythm Holdings, Inc. | Shrishrimal Sumi | Officer | SELL | $108.77 | 1,726 | $187,737 | 36,117 |
| 2025-03-05 00:02 | 2025-03-03 | IRTC | iRhythm Holdings, Inc. | Turakhia Minang | Officer | SELL | $108.77 | 2,467 | $268,336 | 42,495 |
| 2025-03-05 00:01 | 2025-03-03 | IRTC | iRhythm Holdings, Inc. | Wilson Daniel G. | Officer | SELL | $108.77 | 2,341 | $254,631 | 45,307 |
| 2025-03-05 00:38 | 2025-02-28 | GMED | GLOBUS MEDICAL INC | RHOADS ANN D | Director | SELL | $78.68 | 7,500 | $590,100 | 35,384 |
| 2025-03-05 03:14 | 2025-03-03 | ATEC | Alphatec Holdings, Inc. | MCGINNIS KAREN K | Director | SELL | $12.26 | 38,320 | $469,803 | 57,541 |
| 2025-03-04 00:11 | 2025-02-28 | BSX | BOSTON SCIENTIFIC CORP | Woodworth Emily | Officer | OPT+S | $101.13 | 9,887 | $999,872 | 1,632 |
| 2025-03-04 04:22 | 2025-02-28 | MMSI | MERIT MEDICAL SYSTEMS INC | Voigt Michel James | Officer | OPT+S | $99.68 | 13,809 | $1,376,481 | 22,399 |
| 2025-03-04 04:20 | 2025-02-28 | MMSI | MERIT MEDICAL SYSTEMS INC | Parra Raul Jr. | Officer | SELL | $98.81 | 12,451 | $1,230,283 | 24,201 |
| 2025-03-04 04:24 | 2025-02-28 | MMSI | MERIT MEDICAL SYSTEMS INC | Lloyd Brian G. | Officer | OPT+S | $99.50 | 25,000 | $2,487,500 | 38,993 |
| 2025-03-04 05:27 | 2025-02-28 | NVCR | NovoCure Ltd | Weinberg Uri | Officer | SELL | $18.75 | 4,637 | $86,949 | 166,511 |
| 2025-03-04 05:26 | 2025-02-27 | NVCR | NovoCure Ltd | Cordova Ashley | Officer | SELL | $19.72 | 13,494 | $266,126 | 206,058 |
| 2025-03-04 05:26 | 2025-02-27 | NVCR | NovoCure Ltd | Leonard Frank X | Officer | SELL | $19.70 | 15,036 | $296,257 | 146,200 |
| 2025-03-04 05:26 | 2025-02-27 | NVCR | NovoCure Ltd | Puri Michal Nath | Officer | SELL | $20.02 | 1,387 | $27,773 | 108,706 |
| 2025-03-04 05:26 | 2025-02-27 | NVCR | NovoCure Ltd | Leupin Nicolas | Officer | SELL | $20.02 | 991 | $19,844 | 50,133 |
| 2025-03-04 05:26 | 2025-02-27 | NVCR | NovoCure Ltd | Paravasthu Mukund | Officer | SELL | $19.71 | 2,014 | $39,687 | 29,423 |
| 2025-03-04 00:05 | 2024-08-13 | APYX | Apyx Medical Corporation | HILL MATTHEW C | Officer | BUY | $1.13 | 6,000 | $6,780 | 8,500 |
| 2025-03-04 02:50 | 2025-02-27 | UFPT | UFP TECHNOLOGIES INC | CROTEAU DANIEL C | Director | SELL | $228.41 | 6,846 | $1,563,724 | 1,785 |
| 2025-03-03 17:08 | 2025-02-27 | OSUR | ORASURE TECHNOLOGIES INC | Gagliano Nancy J | Director | BUY | $3.08 | 12,750 | $39,270 | 91,524 |
| 2025-03-03 17:07 | 2025-02-28 | OSUR | ORASURE TECHNOLOGIES INC | EGLINTON MANNER CARRIE | Director, Officer | BUY | $3.49 | 28,670 | $100,027 | 1,288,334 |
| 2025-03-01 01:00 | 2025-02-27 | ATEC | Alphatec Holdings, Inc. | Lish Scott | Officer | SELL | $12.03 | 23,183 | $278,891 | 844,494 |
| 2025-03-01 01:57 | 2025-02-26 | GKOS | GLAUKOS Corp | Foley Mark J | Director | OPT+S | $120.72 | 20,687 | $2,497,335 | 54,249 |
| 2025-02-27 23:51 | 2024-06-14 | ICU | SeaStar Medical Holding Corp | Neuman John | Director | BUY | $3.83 | 40,000 | $153,228 | 40,000 |
| 2025-02-28 00:08 | 2025-02-25 | IRTC | iRhythm Holdings, Inc. | Patterson Chad | Officer | SELL | $112.36 | 13,690 | $1,538,218 | 61,196 |
| 2025-02-28 00:07 | 2025-02-26 | IRTC | iRhythm Holdings, Inc. | Shrishrimal Sumi | Officer | SELL | $112.13 | 7,942 | $890,536 | 37,843 |
| 2025-02-28 00:06 | 2025-02-26 | IRTC | iRhythm Holdings, Inc. | Turakhia Minang | Officer | SELL | $112.13 | 7,014 | $786,480 | 44,962 |
| 2025-02-28 00:04 | 2025-02-26 | IRTC | iRhythm Holdings, Inc. | Murphy Patrick Michael | Officer | SELL | $109.68 | 16,330 | $1,791,042 | 58,834 |
| 2025-02-28 00:03 | 2025-02-26 | IRTC | iRhythm Holdings, Inc. | Blackford Quentin S. | Director, Officer | SELL | $112.13 | 22,252 | $2,495,117 | 216,886 |
Sector-Wide Insider Alpha
Analyzing insider movements across the Surgical & Medical Instruments & Apparatus sector provides a macro-view of executive conviction. When multiple leaders in different companies within the same SIC code (3841) simultaneously buy shares, it often indicates an industry-wide undervaluation or a positive shift in market cycles.
SEC Filings in Surgical & Medical Instruments & Apparatus
Every transaction in the Surgical & Medical Instruments & Apparatus 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.