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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2025-05-23 00:40 | 2025-05-20 | ICU | SeaStar Medical Holding Corp | Baird Jennifer A | Director | BUY | $1.28 | 10,000 | $12,815 | 10,000 |
| 2025-05-22 23:45 | 2025-05-20 | LUCD | Lucid Diagnostics Inc. | Matheis Dennis | Director | BUY | $1.31 | 350,000 | $457,590 | 350,000 |
| 2025-05-22 17:05 | 2025-05-20 | RMD | RESMED INC | De Witte Jan | Director | SELL | $243.47 | 2,000 | $486,940 | 5,806 |
| 2025-05-21 23:15 | 2025-05-19 | ALUR | Allurion Technologies Inc. | Gaur Shantanu | Director, Officer | BUY | $3.06 | 8,000 | $24,484 | 16,000 |
| 2025-05-21 23:04 | 2025-05-20 | MMM | 3M CO | Rhodes Kevin H | Officer | OPT+S | $154.02 | 7,976 | $1,228,464 | 15,147 |
| 2025-05-22 00:33 | 2025-05-19 | TLSI | TriSalus Life Sciences, Inc. | Cox Bryan F. | Officer | SELL | $5.18 | 4,764 | $24,678 | 119,415 |
| 2025-05-22 00:31 | 2025-05-19 | TLSI | TriSalus Life Sciences, Inc. | Devlin Jodi | Officer | SELL | $5.18 | 4,764 | $24,678 | 52,764 |
| 2025-05-22 00:30 | 2025-05-19 | TLSI | TriSalus Life Sciences, Inc. | Marshak Richard | Officer | SELL | $5.18 | 6,597 | $34,172 | 69,101 |
| 2025-05-22 00:27 | 2025-05-19 | TLSI | TriSalus Life Sciences, Inc. | Stevens Jennifer | Officer | SELL | $5.18 | 8,704 | $45,087 | 77,640 |
| 2025-05-21 23:23 | 2025-05-20 | ICUI | ICU MEDICAL INC/DE | Voigtlander Christian B. | Officer | OPT+S | $135.05 | 9,788 | $1,321,840 | 3,711 |
| 2025-05-21 23:05 | 2025-05-19 | INSP | Inspire Medical Systems, Inc. | Rondoni John | Officer | SELL | $149.38 | 1,734 | $259,025 | 13,766 |
| 2025-05-21 21:43 | 2025-05-21 | AORT | Artivion Inc. | Holloway Jean F | Officer | SELL | $29.00 | 9,926 | $287,854 | 187,258 |
| 2025-05-22 03:38 | 2025-05-19 | SGHT | Sight Sciences, Inc. | Bauerlein Alison | Officer | SELL | $3.48 | 13,066 | $45,430 | 636,728 |
| 2025-05-21 23:14 | 2025-05-19 | NMTC | NEUROONE MEDICAL TECHNOLOGIES Corp | Christianson Mark | Officer | SELL | $0.66 | 11,019 | $7,306 | 280,472 |
| 2025-05-22 01:28 | 2025-05-19 | ATEC | Alphatec Holdings, Inc. | Lish Scott | Officer | SELL | $13.00 | 55,375 | $719,875 | 771,645 |
| 2025-05-21 02:07 | 2025-05-20 | ICU | SeaStar Medical Holding Corp | Chung Kevin | Officer | BUY | $1.25 | 4,500 | $5,625 | 18,185 |
| 2025-05-20 20:56 | 2025-05-15 | PROF | Profound Medical Corp. | Menawat Arun Swarup | Director, Officer | BUY | $4.55 | 22,030 | $100,151 | 587,089 |
| 2025-05-21 03:00 | 2025-05-16 | NXGL | NEXGEL, INC. | Levy Adam R. | Director, Officer | SELL | $2.58 | 1,000 | $2,575 | 369,284 |
| 2025-05-21 02:47 | 2025-05-16 | SIBN | SI-BONE, Inc. | Maheshwari Anshul | Officer | SELL | $19.70 | 12,009 | $236,612 | 222,083 |
| 2025-05-21 02:45 | 2025-05-16 | SIBN | SI-BONE, Inc. | Pisetsky Michael A | Officer | SELL | $19.66 | 3,459 | $68,006 | 264,808 |
| 2025-05-21 01:54 | 2025-05-19 | INFU | InfuSystem Holdings, Inc | Hundzinski Ronald T | Director | BUY | $6.09 | 5,000 | $30,450 | 5,000 |
| 2025-05-21 02:48 | 2025-05-16 | SIBN | SI-BONE, Inc. | FRANCIS LAURA | Director, Officer | SELL | $19.62 | 17,797 | $349,134 | 490,987 |
| 2025-05-20 18:48 | 2025-05-19 | ICUI | ICU MEDICAL INC/DE | FINNEY ELISHA W | Director | SELL | $138.92 | 600 | $83,353 | 3,252 |
| 2025-05-21 02:46 | 2025-05-16 | SIBN | SI-BONE, Inc. | RECUPERO ANTHONY J | Officer | SELL | $19.56 | 4,147 | $81,109 | 282,431 |
| 2025-05-21 02:11 | 2025-05-16 | LMAT | LEMAITRE VASCULAR INC | LeMaitre George W | Director, Officer | OPT+S | $85.57 | 100,000 | $8,556,630 | 1,827,003 |
| 2025-05-19 15:46 | 2025-05-15 | MMM | 3M CO | Dickson Zoe L | Officer | OPT+S | $149.02 | 7,915 | $1,179,469 | 6,127 |
| 2025-05-20 00:28 | 2025-05-16 | ICUI | ICU MEDICAL INC/DE | Voigtlander Christian B. | Officer | OPT+S | $139.00 | 11,110 | $1,544,314 | 2,389 |
| 2025-05-20 01:51 | 2025-05-15 | MMSI | MERIT MEDICAL SYSTEMS INC | Millner F. Ann | Director | OPT+S | $96.47 | 21,250 | $2,049,988 | 34,543 |
| 2025-05-19 14:58 | 2025-05-15 | INFU | InfuSystem Holdings, Inc | Lachance Carrie | Director, Officer | BUY | $6.06 | 3,132 | $18,987 | 190,212 |
| 2025-05-20 01:46 | 2025-05-15 | CVRX | CVRx, Inc. | Nielsen Kirk G. | Director | BUY | $5.45 | 10,966 | $59,795 | 1,910,134 |
| 2025-05-19 17:57 | 2025-05-16 | RVP | RETRACTABLE TECHNOLOGIES INC | SHAW THOMAS J | Director, Officer, 10% owner | BUY | $0.73 | 5,665 | $4,151 | 15,382,459 |
| 2025-05-16 23:48 | 2025-05-15 | SNWV | SANUWAVE Health, Inc. | Cioanta Iulian | Officer | OPT+S | $31.60 | 3,639 | $114,992 | 41 |
| 2025-05-17 02:33 | 2025-05-15 | PEN | Penumbra Inc | O'Rourke Bridget | Director | SELL | $286.15 | 100 | $28,615 | 5,423 |
| 2025-05-17 02:35 | 2025-05-14 | PEN | Penumbra Inc | Elsesser Adam | Director, Officer | OPT+S | $298.22 | 16,600 | $4,950,475 | 86,613 |
| 2025-05-16 18:28 | 2025-05-15 | RVP | RETRACTABLE TECHNOLOGIES INC | SHAW THOMAS J | Director, Officer, 10% owner | BUY | $0.75 | 86,014 | $64,846 | 15,376,794 |
| 2025-05-17 00:26 | 2025-05-14 | NPCE | NeuroPace Inc | ORBIMED ADVISORS LLC | 10% owner | SELL | $15.85 | 168,136 | $2,665,325 | 3,238,199 |
| 2025-05-15 23:55 | 2025-05-15 | ICUI | ICU MEDICAL INC/DE | Sousa Ben | Officer | SELL | $137.36 | 2,000 | $274,714 | 479 |
| 2025-05-15 23:57 | 2025-05-14 | ICUI | ICU MEDICAL INC/DE | Voigtlander Christian B. | Officer | OPT+S | $137.10 | 11,111 | $1,523,301 | 2,389 |
| 2025-05-15 18:55 | 2025-05-14 | RVP | RETRACTABLE TECHNOLOGIES INC | SHAW THOMAS J | Director, Officer, 10% owner | BUY | $0.75 | 4,530 | $3,413 | 15,290,780 |
| 2025-05-15 23:25 | 2025-05-14 | PODD | INSULET CORP | Kapples John W. | Officer | OPT+S | $318.47 | 5,278 | $1,680,885 | 23,180 |
| 2025-05-14 23:05 | 2025-05-12 | SYK | STRYKER CORP | Berry William E Jr | Officer | SELL | $388.56 | 1,241 | $482,202 | 2,833 |
| 2025-05-15 03:33 | 2025-05-12 | SIBN | SI-BONE, Inc. | Maheshwari Anshul | Officer | SELL | $19.02 | 4,937 | $93,926 | 232,069 |
| 2025-05-15 02:53 | 2025-05-12 | PEN | Penumbra Inc | Roberts Johanna | Officer | OPT+S | $298.55 | 900 | $268,698 | 65,314 |
| 2025-05-15 02:45 | 2025-05-14 | INFU | InfuSystem Holdings, Inc | Steele Barry G | Officer | BUY | $5.76 | 3,000 | $17,280 | 76,887 |
| 2025-05-14 14:00 | 2025-04-24 | SINT | Sintx Technologies, Inc. | Anderson Mark Lewis | Director | BUY | $2.36 | 5,000 | $11,800 | 5,000 |
| 2025-05-15 00:27 | 2025-05-12 | CVRX | CVRx, Inc. | Nielsen Kirk G. | Director | BUY | $5.20 | 187,813 | $977,341 | 1,899,168 |
| 2025-05-15 00:05 | 2025-05-12 | STIM | Neuronetics, Inc. | Furlong Stephen | Officer | SELL | $4.27 | 200,000 | $853,280 | 410,053 |
| 2025-05-14 18:05 | 2025-05-12 | RVP | RETRACTABLE TECHNOLOGIES INC | SHAW THOMAS J | Director, Officer, 10% owner | BUY | $0.75 | 21,883 | $16,493 | 15,286,250 |
| 2025-05-14 23:03 | 2025-05-12 | LMAT | LEMAITRE VASCULAR INC | Ross Bridget A | Director | OPT+S | $83.20 | 3,750 | $312,000 | 2,916 |
| 2025-05-14 23:15 | 2025-05-13 | PODD | INSULET CORP | Hopfield Jessica | Director | OPT+S | $317.54 | 5,235 | $1,662,322 | 26,917 |
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.