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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2025-08-12 18:25 | 2025-08-11 | RVP | RETRACTABLE TECHNOLOGIES INC | SHAW THOMAS J | Director, Officer, 10% owner | BUY | $0.81 | 2,100 | $1,705 | 15,580,854 |
| 2025-08-13 01:03 | 2025-08-08 | TCMD | TACTILE SYSTEMS TECHNOLOGY INC | Dodd Sheri Louise | Director, Officer | SELL | $12.36 | 7,762 | $95,907 | 173,479 |
| 2025-08-11 17:45 | 2025-08-07 | RMD | RESMED INC | Farrell Michael J. | Officer | OPT+S | $279.48 | 8,009 | $2,238,379 | 455,503 |
| 2025-08-12 00:18 | 2025-08-08 | TNDM | TANDEM DIABETES CARE INC | Vosseller Leigh | Officer | BUY | $10.89 | 13,720 | $149,404 | 25,580 |
| 2025-08-11 23:37 | 2025-08-08 | AORT | Artivion Inc. | Horton Amy | Officer | OPT+S | $38.49 | 7,992 | $307,612 | 146,651 |
| 2025-08-12 01:15 | 2025-08-11 | TNDM | TANDEM DIABETES CARE INC | Sheridan John F | Director, Officer | BUY | $10.23 | 10,000 | $102,318 | 106,327 |
| 2025-08-12 01:09 | 2025-08-08 | SIBN | SI-BONE, Inc. | Freund John Gordon | Director | SELL | $15.99 | 12,132 | $193,998 | 91,767 |
| 2025-08-11 18:37 | 2025-08-07 | RVP | RETRACTABLE TECHNOLOGIES INC | SHAW THOMAS J | Director, Officer, 10% owner | BUY | $0.75 | 49,541 | $37,007 | 15,578,754 |
| 2025-08-11 23:15 | 2025-08-11 | BDX | BECTON DICKINSON & CO | HAYES GREGORY | Director | BUY | $191.57 | 5,250 | $1,005,743 | 6,046 |
| 2025-08-08 16:01 | 2025-08-07 | MMM | 3M CO | Goralski Christian T JR | Officer | OPT+S | $150.18 | 6,165 | $925,860 | 2,900 |
| 2025-08-08 16:12 | 2025-08-06 | ATRC | AtriCure, Inc. | GROVES REGINA E | Director | SELL | $36.82 | 2,452 | $90,283 | 33,715 |
| 2025-08-09 03:06 | 2025-08-06 | PEN | Penumbra Inc | Elsesser Adam | Director, Officer | OPT+S | $238.20 | 16,030 | $3,818,364 | 158,204 |
| 2025-08-09 00:48 | 2025-08-06 | LMAT | LEMAITRE VASCULAR INC | LeMaitre George W | Director, Officer | SELL | $93.51 | 100,000 | $9,350,530 | 1,727,003 |
| 2025-08-08 23:03 | 2025-08-07 | PODD | INSULET CORP | Singh Prem | Officer | OPT+S | $320.00 | 1,343 | $429,760 | 4,143 |
| 2025-08-09 01:56 | 2025-08-08 | BDX | BECTON DICKINSON & CO | Fraser Claire | Director | SELL | $192.30 | 863 | $165,955 | 23,143 |
| 2025-08-07 23:14 | 2025-08-05 | TFX | TELEFLEX INC | Ryu Jaewon | Director | BUY | $115.00 | 1,500 | $172,500 | 3,727 |
| 2025-08-07 23:14 | 2025-08-05 | TFX | TELEFLEX INC | Kelly Liam | Director, Officer | BUY | $115.07 | 1,500 | $172,605 | 45,267 |
| 2025-08-07 23:57 | 2025-08-06 | IRTC | iRhythm Holdings, Inc. | Patterson Chad | Officer | SELL | $158.97 | 2,555 | $406,168 | 43,667 |
| 2025-08-08 02:00 | 2025-08-05 | ATEC | Alphatec Holdings, Inc. | Hunsaker Craig E | Officer | SELL | $15.06 | 60,876 | $916,732 | 1,389,142 |
| 2025-08-07 15:45 | 2025-08-05 | ATRC | AtriCure, Inc. | Doraiswamy Vinayak | Officer | SELL | $36.58 | 2,500 | $91,450 | 71,872 |
| 2025-08-07 23:15 | 2025-08-05 | TFX | TELEFLEX INC | Krakauer Andrew A | Director | BUY | $115.25 | 1,000 | $115,250 | 7,192 |
| 2025-08-08 01:02 | 2025-08-05 | TFX | TELEFLEX INC | RANDLE STUART A | Director | BUY | $115.86 | 1,000 | $115,860 | 7,547 |
| 2025-08-07 23:36 | 2025-08-06 | SYK | STRYKER CORP | STRYKER RONDA E | Director | SELL | $376.45 | 200,000 | $75,289,660 | 3,222,108 |
| 2025-08-07 23:12 | 2025-08-06 | TFX | TELEFLEX INC | HAGGERTY GRETCHEN R | Director | BUY | $114.75 | 500 | $57,375 | 6,305 |
| 2025-08-06 16:00 | 2025-08-05 | MMM | 3M CO | Reinseth Theresa E | Officer | SELL | $150.63 | 3,477 | $523,741 | 2,561 |
| 2025-08-07 00:10 | 2025-08-05 | IRTC | iRhythm Holdings, Inc. | Blackford Quentin S. | Director, Officer | SELL | $160.54 | 30,000 | $4,816,191 | 179,038 |
| 2025-08-07 03:00 | 2025-08-06 | IRMD | IRADIMED CORP | ALLEN MONTY K | Director | SELL | $69.10 | 1,102 | $76,148 | 19,898 |
| 2025-08-07 00:51 | 2025-08-04 | SIBN | SI-BONE, Inc. | DUNN JEFFREY W | Director | SELL | $17.37 | 293 | $5,091 | 11,647 |
| 2025-08-05 23:05 | 2025-08-01 | SI | SHOULDER INNOVATIONS, INC. | Points Jeffrey S. | Officer | BUY | $15.00 | 50 | $750 | 50 |
| 2025-08-05 23:05 | 2025-08-01 | SI | SHOULDER INNOVATIONS, INC. | Pardo Geoffrey B | Director, 10% owner | BUY | $15.00 | 100,000 | $1,500,000 | 2,380,482 |
| 2025-08-05 23:05 | 2025-08-01 | SI | SHOULDER INNOVATIONS, INC. | Buchholz Richard | Director | BUY | $15.00 | 5,000 | $75,000 | 12,666 |
| 2025-08-05 23:05 | 2025-08-01 | SI | SHOULDER INNOVATIONS, INC. | Tansey Casey M | Director, 10% owner | BUY | $15.00 | 40,000 | $600,000 | 47,666 |
| 2025-08-06 01:37 | 2025-08-01 | SI | SHOULDER INNOVATIONS, INC. | Gilde Healthcare Holding B.V. | 10% owner | BUY | $15.00 | 100,000 | $1,500,000 | 2,380,482 |
| 2025-08-06 00:03 | 2025-08-04 | IRTC | iRhythm Holdings, Inc. | Smith Mervin | Officer | SELL | $164.36 | 616 | $101,246 | 15,838 |
| 2025-08-06 00:02 | 2025-08-04 | IRTC | iRhythm Holdings, Inc. | Patterson Chad | Officer | SELL | $164.36 | 2,707 | $444,922 | 46,222 |
| 2025-08-06 00:08 | 2025-08-01 | ATEC | Alphatec Holdings, Inc. | Lish Scott | Officer | SELL | $13.48 | 70,604 | $952,081 | 674,332 |
| 2025-08-06 00:07 | 2025-08-01 | ATEC | Alphatec Holdings, Inc. | Marshall Tyson Eliot | Officer | SELL | $13.70 | 30,970 | $424,199 | 438,331 |
| 2025-08-05 19:16 | 2025-08-01 | RMD | RESMED INC | Sandercock Brett | Officer | OPT+S | $281.90 | 3,000 | $845,700 | 83,283 |
| 2025-08-05 23:05 | 2025-08-01 | SI | SHOULDER INNOVATIONS, INC. | Carusi Michael A | Director | BUY | $15.00 | 266,666 | $3,999,990 | 1,885,136 |
| 2025-08-05 23:05 | 2025-08-01 | SI | SHOULDER INNOVATIONS, INC. | LSV Associates II, LLC | BUY | $15.00 | 266,666 | $3,999,990 | 1,885,136 | |
| 2025-08-05 23:48 | 2025-08-04 | RVP | RETRACTABLE TECHNOLOGIES INC | SHAW THOMAS J | Director, Officer, 10% owner | BUY | $0.72 | 30,881 | $22,102 | 15,529,213 |
| 2025-08-05 17:46 | 2025-08-01 | OBIO | Orchestra BioMed Holdings, Inc. | PERCEPTIVE ADVISORS LLC | 10% owner | BUY | $2.75 | 700,000 | $1,925,000 | 5,292,556 |
| 2025-08-05 02:55 | 2025-08-01 | RMD | RESMED INC | Rider Michael J | Officer | SELL | $281.90 | 50 | $14,095 | 8,486 |
| 2025-08-05 00:43 | 2025-08-01 | BSX | BOSTON SCIENTIFIC CORP | Butcher Arthur C | Officer | OPT+S | $104.63 | 17,313 | $1,811,520 | 23,600 |
| 2025-08-05 00:43 | 2025-08-01 | BSX | BOSTON SCIENTIFIC CORP | Fitzgerald Joseph Michael | Officer | OPT+S | $104.63 | 50,000 | $5,231,670 | 178,342 |
| 2025-08-05 01:16 | 2025-08-04 | OBIO | Orchestra BioMed Holdings, Inc. | Hochman David P | Director, Officer | BUY | $2.75 | 20,000 | $55,000 | 349,331 |
| 2025-08-04 22:18 | 2025-08-01 | RVP | RETRACTABLE TECHNOLOGIES INC | SHAW THOMAS J | Director, Officer, 10% owner | BUY | $0.70 | 1,575 | $1,107 | 15,498,332 |
| 2025-08-02 00:00 | 2025-07-30 | NSPR | InspireMD, Inc. | Slosman Marvin | Director, Officer | BUY | $2.42 | 10,330 | $24,999 | 2,420,866 |
| 2025-08-02 00:00 | 2025-07-30 | NSPR | InspireMD, Inc. | Stuka Paul | Director | BUY | $2.42 | 20,661 | $50,000 | 444,195 |
| 2025-08-02 00:00 | 2025-07-30 | NSPR | InspireMD, Inc. | Kester Thomas J | Director | BUY | $2.42 | 30,991 | $74,998 | 420,758 |
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.