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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2018-10-23 23:16 | 2018-09-28 | DCTH | DELCATH SYSTEMS, INC. | Simpson Jennifer K. | Officer | BUY | $1.75 | 7,399 | $12,948 | 7,500 |
| 2018-10-23 23:20 | 2018-09-28 | DCTH | DELCATH SYSTEMS, INC. | Purpura John | Officer | BUY | $1.75 | 5,500 | $9,625 | 5,501 |
| 2018-10-23 23:16 | 2018-09-28 | DCTH | DELCATH SYSTEMS, INC. | Keck Barbra | Officer | BUY | $1.75 | 7,399 | $12,948 | 7,500 |
| 2018-10-23 23:16 | 2018-09-28 | DCTH | DELCATH SYSTEMS, INC. | Rueckert William Dodge | Director | BUY | $1.75 | 6,500 | $11,375 | 7,926 |
| 2018-10-23 23:19 | 2018-09-28 | DCTH | DELCATH SYSTEMS, INC. | STOLL ROGER G PHD | Director | BUY | $1.75 | 4,900 | $8,575 | 5,901 |
| 2018-10-22 20:53 | 2018-10-19 | RVP | RETRACTABLE TECHNOLOGIES INC | SHAW THOMAS J | Director, Officer, 10% owner | BUY | $0.68 | 3,852 | $2,624 | 13,746,902 |
| 2018-10-22 23:08 | 2018-10-18 | TCMD | TACTILE SYSTEMS TECHNOLOGY INC | Folkes Robert J. | Officer | OPT+S | $65.82 | 2,483 | $163,431 | 113,236 |
| 2018-10-19 23:58 | 2018-10-19 | SIBN | SI-BONE, Inc. | Petersen Timothy | Director | BUY | $15.00 | 200,000 | $3,000,000 | 1,695,036 |
| 2018-10-19 23:50 | 2018-10-19 | SIBN | SI-BONE, Inc. | Bonita David P | Director | BUY | $15.00 | 200,000 | $3,000,000 | 985,368 |
| 2018-10-19 23:48 | 2018-10-19 | SIBN | SI-BONE, Inc. | Freund John Gordon | Director, 10% owner | BUY | $15.00 | 325,000 | $4,875,000 | 4,419,985 |
| 2018-10-19 23:48 | 2018-10-19 | SIBN | SI-BONE, Inc. | Skyline Venture Partners V LP | 10% owner | BUY | $15.00 | 325,000 | $4,875,000 | 4,419,985 |
| 2018-10-19 22:39 | 2018-10-18 | RVP | RETRACTABLE TECHNOLOGIES INC | SHAW THOMAS J | Director, Officer, 10% owner | BUY | $0.68 | 6,450 | $4,406 | 13,743,050 |
| 2018-10-19 23:52 | 2018-10-19 | SIBN | SI-BONE, Inc. | ORBIMED ADVISORS LLC | Director | BUY | $15.00 | 200,000 | $3,000,000 | 985,368 |
| 2018-10-18 23:58 | 2018-10-16 | IART | INTEGRA LIFESCIENCES HOLDINGS CORP | CARUSO RICHARD E | 10% owner | SELL | $63.19 | 46,676 | $2,949,522 | 0 |
| 2018-10-18 17:38 | 2018-10-16 | RVP | RETRACTABLE TECHNOLOGIES INC | SHAW THOMAS J | Director, Officer, 10% owner | BUY | $0.68 | 5,300 | $3,628 | 13,736,600 |
| 2018-10-17 20:37 | 2018-10-16 | IRTC | iRhythm Holdings, Inc. | Sung Derrick | Officer | OPT+S | $88.01 | 10,000 | $880,100 | 19,458 |
| 2018-10-17 20:09 | 2018-10-15 | RMD | RESMED INC | Sandercock Brett | Officer | SELL | $103.16 | 2,000 | $206,320 | 71,232 |
| 2018-10-17 23:43 | 2018-10-15 | TCMD | TACTILE SYSTEMS TECHNOLOGY INC | Rishe Bryan | Officer | SELL | $61.72 | 3,000 | $185,160 | 70,328 |
| 2018-10-16 21:07 | 2018-10-12 | RVP | RETRACTABLE TECHNOLOGIES INC | SHAW THOMAS J | Director, Officer, 10% owner | BUY | $0.69 | 11,039 | $7,620 | 13,731,300 |
| 2018-10-17 00:13 | 2018-10-15 | PODD | INSULET CORP | Abdel-Malek Aiman | Officer | SELL | $88.58 | 602 | $53,325 | 26,153 |
| 2018-10-17 00:27 | 2018-10-12 | DXCM | DEXCOM INC | Balo Andrew K | Officer | SELL | $124.79 | 5,000 | $623,934 | 83,105 |
| 2018-10-15 23:29 | 2018-10-11 | OFIX | Orthofix Medical Inc. | DOUG RICE | Officer | SELL | $55.65 | 3,949 | $219,754 | 32,368 |
| 2018-10-16 01:42 | 2018-10-12 | TFX | TELEFLEX INC | POWELL THOMAS E | Officer | OPT+S | $246.84 | 5,200 | $1,283,546 | 10,151 |
| 2018-10-12 23:24 | 2018-10-11 | RVP | RETRACTABLE TECHNOLOGIES INC | SHAW THOMAS J | Director, Officer, 10% owner | BUY | $0.70 | 2,836 | $1,985 | 13,720,261 |
| 2018-10-12 23:11 | 2018-10-10 | DXCM | DEXCOM INC | Murphy Patrick Michael | Officer | SELL | $122.20 | 400 | $48,880 | 30,908 |
| 2018-10-11 23:18 | 2018-10-10 | RVP | RETRACTABLE TECHNOLOGIES INC | SHAW THOMAS J | Director, Officer, 10% owner | BUY | $0.71 | 11,510 | $8,120 | 13,717,425 |
| 2018-10-12 01:47 | 2018-10-10 | CERS | CERUS CORP | Green Kevin Dennis | Officer | OPT+S | $6.09 | 2,783 | $16,946 | 60,825 |
| 2018-10-10 21:27 | 2018-10-09 | IRTC | iRhythm Holdings, Inc. | Sung Derrick | Officer | OPT+S | $83.10 | 10,000 | $831,000 | 19,458 |
| 2018-10-11 01:12 | 2018-10-08 | TFX | TELEFLEX INC | SMITH BENSON | Director | OPT+S | $250.31 | 9,331 | $2,335,634 | 68,556 |
| 2018-10-11 02:48 | 2018-10-08 | DXCM | DEXCOM INC | SAYER KEVIN R | Director, Officer | OPT+S | $124.76 | 11,161 | $1,392,433 | 320,837 |
| 2018-10-09 17:28 | 2018-10-05 | RVP | RETRACTABLE TECHNOLOGIES INC | SHAW THOMAS J | Director, Officer, 10% owner | BUY | $0.73 | 9,600 | $7,027 | 13,705,915 |
| 2018-10-04 17:57 | 2018-10-03 | DYNT | DYNATRONICS CORP | von Jako Christopher Richard | Director, Officer | BUY | $0.00 | 1,403 | $0 | 40,824 |
| 2018-10-04 17:59 | 2018-10-03 | DYNT | DYNATRONICS CORP | Wirthlin David Alma | Officer | BUY | $0.00 | 78 | $0 | 487 |
| 2018-10-04 17:55 | 2018-10-03 | DYNT | DYNATRONICS CORP | Ogilvie James Norman | Officer | BUY | $0.00 | 341 | $0 | 16,817 |
| 2018-10-04 17:56 | 2018-10-03 | DYNT | DYNATRONICS CORP | Provco Ventures 1 LP | 10% owner | BUY | $0.00 | 12,949 | $0 | 639,779 |
| 2018-10-04 17:54 | 2018-10-03 | DYNT | DYNATRONICS CORP | ENRIGHT ERIN S. | Director | BUY | $0.00 | 25,987 | $0 | 71,381 |
| 2018-10-04 17:58 | 2018-10-03 | DYNT | DYNATRONICS CORP | LARKIN BRIAN | Director | BUY | $0.00 | 1,312 | $0 | 95,535 |
| 2018-10-05 04:03 | 2018-10-02 | PEN | Penumbra Inc | Wilder Thomas | Director | SELL | $146.96 | 151 | $22,191 | 3,173 |
| 2018-10-04 23:17 | 2018-10-03 | RMD | RESMED INC | PENDARVIS DAVID | Officer | OPT+S | $113.95 | 2,810 | $320,200 | 104,251 |
| 2018-10-04 17:55 | 2018-10-03 | DYNT | DYNATRONICS CORP | ESSIG STUART | 10% owner | BUY | $0.00 | 25,987 | $0 | 71,381 |
| 2018-10-04 18:52 | 2018-10-02 | RVP | RETRACTABLE TECHNOLOGIES INC | SHAW THOMAS J | Director, Officer, 10% owner | BUY | $0.75 | 9,200 | $6,856 | 13,696,315 |
| 2018-10-05 00:07 | 2018-10-02 | ARAY | Accuray Incorporated | LEVINE JOSHUA | Officer | SELL | $4.38 | 17,242 | $75,603 | 1,374,293 |
| 2018-10-04 16:15 | 2018-10-01 | TCMD | TACTILE SYSTEMS TECHNOLOGY INC | Folkes Robert J. | Officer | OPT+S | $71.54 | 3,044 | $217,768 | 113,236 |
| 2018-10-04 00:59 | 2018-10-01 | RMD | RESMED INC | Hollingshead James | Officer | SELL | $115.88 | 600 | $69,528 | 70,623 |
| 2018-10-04 03:41 | 2018-10-01 | PEN | Penumbra Inc | Grewal Harpreet | Director | SELL | $148.58 | 665 | $98,807 | 13,609 |
| 2018-10-04 03:05 | 2018-10-02 | ARAY | Accuray Incorporated | Hamamatsu Shigeyuki | Officer | SELL | $4.48 | 8,762 | $39,255 | 116,238 |
| 2018-10-04 03:04 | 2018-10-02 | ARAY | Accuray Incorporated | Kirkpatrick Andrew J | Officer | SELL | $4.48 | 1,786 | $8,001 | 242,650 |
| 2018-10-03 23:50 | 2018-10-01 | DXCM | DEXCOM INC | ALTMAN STEVEN R | Director | SELL | $135.65 | 2,500 | $339,134 | 55,355 |
| 2018-10-02 22:50 | 2018-10-01 | SYK | STRYKER CORP | Boehnlein Glenn S | Officer | SELL | $178.17 | 750 | $133,627 | 2,785 |
| 2018-10-02 23:24 | 2018-10-01 | BSX | BOSTON SCIENTIFIC CORP | Mahoney Michael F | Director, Officer | SELL | $38.80 | 116,666 | $4,526,466 | 1,906,438 |
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.