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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2019-02-07 00:34 | 2019-02-05 | PODD | INSULET CORP | Colleran David | Officer | OPT+S | $80.72 | 6,834 | $551,640 | 34,133 |
| 2019-02-06 00:16 | 2019-02-01 | NVCR | NovoCure Ltd | Ambrogi Michael J. | Officer | OPT+S | $49.21 | 58,500 | $2,878,849 | 146,558 |
| 2019-02-06 00:49 | 2019-02-01 | BSX | BOSTON SCIENTIFIC CORP | Pierce David A | Officer | OPT+S | $38.15 | 5,000 | $190,750 | 24,201 |
| 2019-02-06 00:55 | 2019-01-31 | TTOO | T2 Biosystems, Inc. | Gibbs Michael Terrence | Officer | OPT+S | $3.43 | 2,759 | $9,461 | 54,428 |
| 2019-02-06 00:54 | 2019-01-31 | TTOO | T2 Biosystems, Inc. | McDonough John | Director, Officer | OPT+S | $3.43 | 14,338 | $49,165 | 439,688 |
| 2019-02-06 00:53 | 2019-01-31 | TTOO | T2 Biosystems, Inc. | Lowery Thomas J. | Officer | OPT+S | $3.43 | 6,351 | $21,778 | 66,875 |
| 2019-02-06 01:01 | 2019-02-04 | RMD | RESMED INC | PENDARVIS DAVID | Officer | OPT+S | $93.50 | 4,457 | $416,730 | 118,002 |
| 2019-02-06 01:29 | 2019-02-04 | RVP | RETRACTABLE TECHNOLOGIES INC | SHAW THOMAS J | Director, Officer, 10% owner | BUY | $0.67 | 3,636 | $2,451 | 13,918,495 |
| 2019-02-06 01:30 | 2019-02-01 | TCMD | TACTILE SYSTEMS TECHNOLOGY INC | Folkes Robert J. | Officer | OPT+S | $66.04 | 3,044 | $201,026 | 107,770 |
| 2019-02-05 02:33 | 2019-02-04 | SYK | STRYKER CORP | Fink M Kathryn | Officer | SELL | $176.77 | 180 | $31,819 | 5,650 |
| 2019-02-04 20:37 | 2019-02-01 | RMD | RESMED INC | Hollingshead James | Officer | OPT+S | $95.09 | 1,600 | $152,144 | 82,089 |
| 2019-02-05 01:47 | 2019-01-31 | SYK | STRYKER CORP | Doliveux Roch | Director | BUY | $177.26 | 46 | $8,154 | 19,695 |
| 2019-02-05 03:25 | 2019-01-31 | INSP | Inspire Medical Systems, Inc. | Erony Joyce | Director | SELL | $53.07 | 52,054 | $2,762,495 | 724,989 |
| 2019-02-05 02:16 | 2019-01-31 | SYK | STRYKER CORP | FRANCESCONI LOUISE | Director | OPT+S | $177.20 | 9,477 | $1,679,353 | 18,277 |
| 2019-02-05 02:27 | 2019-01-31 | BAX | BAXTER INTERNATIONAL INC | Mason Jeanne K | Officer | OPT+S | $72.00 | 37,274 | $2,683,728 | 97,382 |
| 2019-02-05 02:35 | 2019-02-01 | BAX | BAXTER INTERNATIONAL INC | STALLKAMP THOMAS T | Director | SELL | $73.75 | 1,638 | $120,803 | 7,780 |
| 2019-02-01 19:23 | 2019-01-31 | MMM | 3M CO | THULIN INGE G | Director, Officer | OPT+S | $200.03 | 13,290 | $2,658,348 | 230,458 |
| 2019-02-01 18:13 | 2019-01-30 | MMM | 3M CO | THULIN INGE G | Director, Officer | OPT+S | $200.00 | 13,499 | $2,699,862 | 230,458 |
| 2019-02-02 01:29 | 2019-01-31 | PODD | INSULET CORP | Colleran David | Officer | OPT+S | $80.00 | 4,826 | $386,080 | 34,133 |
| 2019-01-31 22:41 | 2019-01-30 | IRTC | iRhythm Holdings, Inc. | Sung Derrick | Officer | OPT+S | $84.00 | 2,000 | $168,000 | 25,258 |
| 2019-02-01 03:12 | 2019-01-30 | RMD | RESMED INC | Sandercock Brett | Officer | SELL | $92.30 | 3,000 | $276,900 | 91,390 |
| 2019-02-01 03:44 | 2019-01-29 | PEN | Penumbra Inc | Kassing Don W. | Director | SELL | $136.69 | 1,086 | $148,446 | 1,577 |
| 2019-01-31 01:32 | 2019-01-28 | INSP | Inspire Medical Systems, Inc. | Erony Joyce | Director | SELL | $53.10 | 67,021 | $3,559,043 | 777,043 |
| 2019-01-31 00:38 | 2019-01-28 | IRTC | iRhythm Holdings, Inc. | Sung Derrick | Officer | OPT+S | $84.03 | 10,125 | $850,851 | 25,258 |
| 2019-01-31 00:46 | 2019-01-30 | RVP | RETRACTABLE TECHNOLOGIES INC | SHAW THOMAS J | Director, Officer, 10% owner | BUY | $0.68 | 8,000 | $5,448 | 13,914,859 |
| 2019-01-30 01:02 | 2018-12-17 | REPR | KORU Medical Systems, Inc. | Manko Joseph M. Jr. | Director, 10% owner | BUY | $1.20 | 45,000 | $54,000 | 3,391,677 |
| 2019-01-30 00:03 | 2019-01-27 | DRIO | DarioHealth Corp. | Shaked Yoav | Director | BUY | $0.00 | 10,250 | $0 | 23,632 |
| 2019-01-30 00:03 | 2019-01-27 | DRIO | DarioHealth Corp. | Moller Glen | Director | BUY | $0.00 | 5,231 | $0 | 5,231 |
| 2019-01-30 00:03 | 2019-01-27 | DRIO | DarioHealth Corp. | Kamer Allen | Director | BUY | $0.00 | 6,250 | $0 | 63,355 |
| 2019-01-30 00:03 | 2019-01-27 | DRIO | DarioHealth Corp. | Raphael Erez | Director, Officer, 10% owner | BUY | $0.00 | 61,969 | $0 | 1,397,436 |
| 2019-01-30 00:03 | 2019-01-27 | DRIO | DarioHealth Corp. | Karah Hila | Director | BUY | $0.00 | 10,250 | $0 | 105,883 |
| 2019-01-29 19:56 | 2019-01-28 | RVP | RETRACTABLE TECHNOLOGIES INC | SHAW THOMAS J | Director, Officer, 10% owner | BUY | $0.69 | 3,500 | $2,398 | 13,906,859 |
| 2019-01-29 00:15 | 2019-01-24 | NVCR | NovoCure Ltd | Longsworth Todd Christopher | Officer | OPT+S | $49.03 | 26,874 | $1,317,732 | 21,305 |
| 2019-01-29 00:12 | 2019-01-25 | NVCR | NovoCure Ltd | GROENHUYSEN WILHELMUS CM | Officer | OPT+S | $49.20 | 35,000 | $1,722,000 | 37,149 |
| 2019-01-29 00:13 | 2019-01-25 | NVCR | NovoCure Ltd | LEUNG GABRIEL | Director | OPT+S | $50.00 | 20,000 | $1,000,000 | 60,000 |
| 2019-01-29 02:54 | 2019-01-28 | ICUI | ICU MEDICAL INC/DE | SWINNEY ROBERT S | Director | SELL | $242.19 | 1,500 | $363,285 | 18,040 |
| 2019-01-26 00:10 | 2019-01-23 | NVCR | NovoCure Ltd | Danziger Asaf | Director, Officer | OPT+S | $47.48 | 88,695 | $4,211,239 | 171,164 |
| 2019-01-26 02:18 | 2019-01-23 | INSP | Inspire Medical Systems, Inc. | Erony Joyce | Director | SELL | $52.62 | 62,870 | $3,308,320 | 844,064 |
| 2019-01-26 01:55 | 2019-01-25 | TNDM | TANDEM DIABETES CARE INC | Sheridan John F | Officer | OPT+S | $45.26 | 20,000 | $905,178 | 666 |
| 2019-01-26 00:12 | 2019-01-23 | NVCR | NovoCure Ltd | GROENHUYSEN WILHELMUS CM | Officer | OPT+S | $47.35 | 35,000 | $1,657,250 | 37,149 |
| 2019-01-25 00:42 | 2019-01-23 | RVP | RETRACTABLE TECHNOLOGIES INC | SHAW THOMAS J | Director, Officer, 10% owner | BUY | $0.69 | 4,830 | $3,337 | 13,903,359 |
| 2019-01-25 02:05 | 2019-01-22 | MDXG | MIMEDX GROUP, INC. | Okumus Fund Management Ltd. | 10% owner | SELL | $2.81 | 1,991,700 | $5,589,706 | 10,533,355 |
| 2019-01-25 01:46 | 2019-01-23 | DXCM | DEXCOM INC | Pacelli Steven Robert | Officer | SELL | $149.74 | 3,114 | $466,303 | 101,404 |
| 2019-01-24 00:16 | 2019-01-22 | INSP | Inspire Medical Systems, Inc. | Buchholz Richard | Officer | OPT+S | $54.18 | 6,000 | $325,080 | 4,750 |
| 2019-01-23 18:38 | 2019-01-17 | INSP | Inspire Medical Systems, Inc. | Erony Joyce | Director | SELL | $53.90 | 289,405 | $15,600,203 | 906,934 |
| 2019-01-23 18:36 | 2019-01-14 | INSP | Inspire Medical Systems, Inc. | Erony Joyce | Director | SELL | $49.31 | 300,704 | $14,827,113 | 1,196,339 |
| 2019-01-24 01:36 | 2019-01-18 | BAX | BAXTER INTERNATIONAL INC | STALLKAMP THOMAS T | Director | SELL | $70.00 | 3,187 | $223,090 | 9,418 |
| 2019-01-23 01:13 | 2019-01-18 | NVCR | NovoCure Ltd | Danziger Asaf | Director, Officer | OPT+S | $45.91 | 46,863 | $2,151,358 | 171,164 |
| 2019-01-23 02:31 | 2018-01-17 | INSP | Inspire Medical Systems, Inc. | Erony Joyce | Director | SELL | $53.90 | 289,405 | $15,600,203 | 906,934 |
| 2019-01-23 01:14 | 2019-01-18 | NVCR | NovoCure Ltd | GROENHUYSEN WILHELMUS CM | Officer | OPT+S | $45.90 | 30,000 | $1,376,910 | 37,149 |
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.