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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2025-06-05 02:30 | 2025-06-02 | BBNX | Beta Bionics, Inc. | Mensinger Mike | Officer | SELL | $17.89 | 1,115 | $19,948 | 92,904 |
| 2025-06-05 02:30 | 2025-06-02 | BBNX | Beta Bionics, Inc. | Feider Stephen | Officer | SELL | $17.89 | 1,497 | $26,783 | 45,503 |
| 2025-06-05 02:30 | 2025-06-02 | BBNX | Beta Bionics, Inc. | Saint Sean | Director, Officer | SELL | $17.89 | 3,439 | $61,526 | 104,561 |
| 2025-06-04 23:26 | 2025-06-03 | NVCR | NovoCure Ltd | Stafford Kristin | Director | SELL | $17.28 | 999 | $17,259 | 3,054 |
| 2025-06-04 23:23 | 2025-06-03 | NVCR | NovoCure Ltd | Madden Martin J. | Director | SELL | $17.19 | 999 | $17,176 | 18,674 |
| 2025-06-04 23:16 | 2025-06-03 | NVCR | NovoCure Ltd | Ocean Allyson J | Director | SELL | $17.29 | 999 | $17,269 | 3,054 |
| 2025-06-04 23:09 | 2025-06-02 | NVCR | NovoCure Ltd | Leonard Frank X | Officer | SELL | $17.50 | 30,196 | $528,412 | 168,452 |
| 2025-06-05 02:44 | 2025-06-04 | BSX | BOSTON SCIENTIFIC CORP | Fitzgerald Joseph Michael | Officer | OPT+S | $102.88 | 56,372 | $5,799,630 | 178,342 |
| 2025-06-04 23:22 | 2025-06-03 | NVCR | NovoCure Ltd | Scannell Timothy J | Director | SELL | $17.32 | 999 | $17,299 | 6,018 |
| 2025-06-04 23:14 | 2025-06-03 | NVCR | NovoCure Ltd | VERNON W ANTHONY | Director | SELL | $17.35 | 999 | $17,329 | 167,887 |
| 2025-06-05 02:30 | 2025-06-02 | PEN | Penumbra Inc | Roberts Johanna | Officer | SELL | $258.17 | 600 | $154,903 | 64,714 |
| 2025-06-04 23:11 | 2025-06-03 | NVCR | NovoCure Ltd | Hung David | Director | SELL | $17.30 | 999 | $17,280 | 12,195 |
| 2025-06-04 23:24 | 2025-06-03 | NVCR | NovoCure Ltd | LEUNG GABRIEL | Director | SELL | $17.31 | 999 | $17,297 | 81,229 |
| 2025-06-04 23:17 | 2025-06-03 | NVCR | NovoCure Ltd | HILLEMAN JERYL L | Director | SELL | $17.26 | 999 | $17,247 | 5,591 |
| 2025-06-05 01:13 | 2025-06-02 | LUNG | Pulmonx Corp | Williamson Steven S. | Director, Officer | SELL | $3.13 | 9,923 | $31,059 | 366,115 |
| 2025-06-05 01:10 | 2025-06-02 | LUNG | Pulmonx Corp | Joshi Mehul | Officer | SELL | $3.13 | 8,061 | $25,231 | 213,925 |
| 2025-06-05 01:04 | 2025-06-02 | LUNG | Pulmonx Corp | Rose Geoffrey Beran | Officer | SELL | $3.13 | 6,947 | $21,748 | 386,331 |
| 2025-06-05 01:02 | 2025-06-02 | LUNG | Pulmonx Corp | Lehman David Aaron | Officer | SELL | $3.13 | 10,457 | $32,736 | 273,039 |
| 2025-06-04 00:43 | 2025-05-30 | MMSI | MERIT MEDICAL SYSTEMS INC | Lampropoulos Fred P. | Director, Officer | SELL | $95.12 | 10,000 | $951,200 | 1,056,028 |
| 2025-06-03 20:13 | 2025-06-02 | RMD | RESMED INC | Rider Michael J | Officer | SELL | $243.78 | 41 | $9,995 | 8,870 |
| 2025-06-04 00:44 | 2025-05-30 | MMSI | MERIT MEDICAL SYSTEMS INC | Floyd David | Director | SELL | $94.16 | 3,515 | $330,972 | 4,880 |
| 2025-06-03 23:47 | 2025-06-02 | BSX | BOSTON SCIENTIFIC CORP | Mahoney Michael F | Director, Officer | OPT+S | $103.69 | 164,443 | $17,051,128 | 1,476,882 |
| 2025-06-04 04:57 | 2025-05-30 | SGHT | Sight Sciences, Inc. | Encrantz Staffan | Director, 10% owner | BUY | $3.81 | 98,782 | $376,429 | 1,256,487 |
| 2025-06-03 23:18 | 2025-06-02 | IRTC | iRhythm Holdings, Inc. | Shrishrimal Sumi | Officer | SELL | $140.21 | 1,608 | $225,458 | 34,685 |
| 2025-06-03 23:17 | 2025-06-02 | IRTC | iRhythm Holdings, Inc. | Rosenbaum Marc W. | Officer | SELL | $140.21 | 696 | $97,586 | 11,105 |
| 2025-06-04 00:59 | 2025-06-02 | RMD | RESMED INC | Sandercock Brett | Officer | SELL | $243.78 | 1,000 | $243,780 | 85,283 |
| 2025-06-04 00:45 | 2025-05-30 | MMSI | MERIT MEDICAL SYSTEMS INC | McDonnell Michael R. | Director | SELL | $94.41 | 3,500 | $330,418 | 6,395 |
| 2025-06-03 03:00 | 2025-05-30 | NXGL | NEXGEL, INC. | Levy Adam R. | Director, Officer | SELL | $2.22 | 1,000 | $2,220 | 368,284 |
| 2025-06-03 01:44 | 2025-06-02 | BDX | BECTON DICKINSON & CO | Shan David | Officer | SELL | $171.19 | 1,166 | $199,608 | 4,575 |
| 2025-05-30 21:34 | 2025-05-30 | ICUI | ICU MEDICAL INC/DE | Sanzone Virginia Ruth | Officer | SELL | $133.62 | 700 | $93,537 | 6,386 |
| 2025-05-30 23:21 | 2025-05-28 | ATRC | AtriCure, Inc. | Doraiswamy Vinayak | Officer | SELL | $33.44 | 2,500 | $83,600 | 73,550 |
| 2025-05-31 03:02 | 2025-05-28 | PEN | Penumbra Inc | Elsesser Adam | Director, Officer | OPT+S | $267.91 | 16,300 | $4,366,920 | 98,289 |
| 2025-05-30 23:08 | 2025-05-29 | BSX | BOSTON SCIENTIFIC CORP | LUDWIG EDWARD J | Director | SELL | $104.59 | 4,000 | $418,368 | 22,479 |
| 2025-05-29 20:46 | 2025-05-27 | MMSI | MERIT MEDICAL SYSTEMS INC | LAMPROPOULOS FRED P | Director, Officer | SELL | $96.54 | 20,000 | $1,930,800 | 1,066,028 |
| 2025-05-30 04:31 | 2025-05-27 | SGHT | Sight Sciences, Inc. | Encrantz Staffan | Director, 10% owner | BUY | $3.52 | 128,189 | $451,738 | 1,157,705 |
| 2025-05-28 19:00 | 2025-05-27 | ICUI | ICU MEDICAL INC/DE | Voigtlander Christian B. | Officer | OPT+S | $129.75 | 9,930 | $1,288,372 | 6,088 |
| 2025-05-28 23:24 | 2025-05-28 | INFU | InfuSystem Holdings, Inc | Eichenbaum Kenneth D. | Director | BUY | $5.18 | 2,000 | $10,360 | 6,000 |
| 2025-05-28 23:51 | 2025-05-27 | DXCM | DEXCOM INC | Stern Sadie | Officer | SELL | $85.11 | 6,184 | $526,318 | 109,621 |
| 2025-05-28 23:50 | 2025-05-23 | DXCM | DEXCOM INC | Brown Michael Jon | Officer | SELL | $84.28 | 10,000 | $842,849 | 95,602 |
| 2025-05-27 18:38 | 2025-05-23 | AORT | Artivion Inc. | SEMEDO ANTHONY B. | Director | SELL | $28.47 | 2,600 | $74,027 | 33,059 |
| 2025-05-27 23:26 | 2025-05-23 | AORT | Artivion Inc. | SEMEDO ANTHONY B. | Director | SELL | $28.47 | 2,600 | $74,027 | 39,384 |
| 2025-05-27 15:20 | 2025-05-23 | MMM | 3M CO | Banovetz John Patrick | Officer | OPT+S | $148.37 | 7,759 | $1,151,237 | 31,372 |
| 2025-05-28 00:29 | 2025-05-27 | AORT | Artivion Inc. | Holloway Jean F | Officer | SELL | $29.00 | 8,748 | $253,692 | 178,510 |
| 2025-05-27 17:24 | 2025-05-22 | RMD | RESMED INC | Sandercock Brett | Officer | SELL | $244.59 | 3,644 | $891,286 | 86,283 |
| 2025-05-23 23:14 | 2025-05-20 | LUCD | Lucid Diagnostics Inc. | Matheis Dennis | Director | BUY | $1.31 | 350,000 | $457,590 | 565,443 |
| 2025-05-24 00:01 | 2025-05-22 | ICUI | ICU MEDICAL INC/DE | Voigtlander Christian B. | Officer | OPT+S | $130.02 | 9,918 | $1,289,503 | 4,903 |
| 2025-05-24 02:39 | 2023-02-02 | SYK | STRYKER CORP | Berry William E Jr | Officer | SELL | $279.96 | 755 | $211,370 | 1,853 |
| 2025-05-23 23:03 | 2025-05-21 | NMTC | NEUROONE MEDICAL TECHNOLOGIES Corp | Christianson Mark | Officer | SELL | $0.62 | 8,981 | $5,595 | 271,491 |
| 2025-05-23 23:35 | 2025-05-23 | EMBC | Embecta Corp. | Melcher David F | Director | BUY | $10.60 | 10,000 | $105,995 | 86,681 |
| 2025-05-22 23:08 | 2025-05-21 | BSX | BOSTON SCIENTIFIC CORP | Brown Vance R | Officer | SELL | $106.42 | 4,826 | $513,583 | 31,367 |
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.