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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2018-08-07 00:21 | 2018-08-02 | CTSO | Cytosorbents Corp | Capponi Vincent | Officer | OPT+S | $13.06 | 10,435 | $136,263 | 332,768 |
| 2018-08-06 23:06 | 2018-08-02 | LMAT | LEMAITRE VASCULAR INC | Roberts David B | Director, Officer | OPT+S | $35.72 | 21,005 | $750,303 | 5,373 |
| 2018-08-04 00:04 | 2018-08-03 | TNDM | TANDEM DIABETES CARE INC | Valencia Richard P. | Director | BUY | $28.50 | 1,754 | $49,989 | 1,754 |
| 2018-08-03 22:14 | 2018-08-02 | UFPT | UFP TECHNOLOGIES INC | Smith W David | Officer | OPT+S | $34.58 | 7,286 | $251,935 | 12,551 |
| 2018-08-03 23:04 | 2018-08-02 | IRMD | IRADIMED CORP | Nardi Steven M. | Officer | OPT+S | $23.80 | 7,662 | $182,349 | 0 |
| 2018-08-04 00:36 | 2018-08-02 | IRMD | IRADIMED CORP | JOHNSON BRENT | Officer | OPT+S | $24.01 | 100,000 | $2,400,980 | 1,368 |
| 2018-08-04 02:35 | 2018-08-02 | GKOS | GLAUKOS Corp | Calcaterra Chris M. | Officer | OPT+S | $44.44 | 38,983 | $1,732,463 | 240,000 |
| 2018-08-03 23:50 | 2018-08-01 | DXCM | DEXCOM INC | MOY JEFFREY | Officer | SELL | $94.13 | 5,831 | $548,872 | 5,061 |
| 2018-08-03 23:46 | 2018-08-01 | TCMD | TACTILE SYSTEMS TECHNOLOGY INC | Folkes Robert J. | Officer | OPT+S | $47.54 | 3,043 | $144,664 | 118,236 |
| 2018-08-02 20:29 | 2018-08-01 | RMD | RESMED INC | Hollingshead James | Officer | SELL | $105.93 | 600 | $63,558 | 59,663 |
| 2018-08-03 02:01 | 2018-07-31 | DCTH | DELCATH SYSTEMS, INC. | Simpson Jennifer K. | Officer | BUY | $2.55 | 100 | $255 | 101 |
| 2018-08-02 23:21 | 2018-08-01 | BSX | BOSTON SCIENTIFIC CORP | Pierce David A | Officer | OPT+S | $33.66 | 5,000 | $168,323 | 24,201 |
| 2018-08-03 02:43 | 2018-07-31 | SYK | STRYKER CORP | Doliveux Roch | Director | BUY | $165.32 | 44 | $7,274 | 19,604 |
| 2018-08-03 02:17 | 2018-08-01 | DCTH | DELCATH SYSTEMS, INC. | Keck Barbra | Officer | BUY | $2.39 | 100 | $239 | 101 |
| 2018-08-03 04:06 | 2018-07-31 | DCTH | DELCATH SYSTEMS, INC. | Rueckert William Dodge | Director | BUY | $2.53 | 3,208 | $8,103 | 3,209 |
| 2018-08-02 23:13 | 2018-08-01 | NVCR | NovoCure Ltd | GROENHUYSEN WILHELMUS CM | Officer | SELL | $35.01 | 1,241 | $43,445 | 115,344 |
| 2018-08-03 04:25 | 2018-08-01 | DCTH | DELCATH SYSTEMS, INC. | STOLL ROGER G PHD | Director | BUY | $2.47 | 1,000 | $2,466 | 1,001 |
| 2018-08-02 03:21 | 2018-07-30 | PEN | Penumbra Inc | Pray James Robert | Officer | SELL | $138.34 | 8,125 | $1,123,982 | 501,681 |
| 2018-08-01 23:01 | 2018-07-30 | TCMD | TACTILE SYSTEMS TECHNOLOGY INC | Thompson Maggie | Officer | SELL | $47.98 | 2,660 | $127,627 | 34,802 |
| 2018-07-31 23:10 | 2018-07-31 | TCMD | TACTILE SYSTEMS TECHNOLOGY INC | Blake Lynn Larson | Officer | SELL | $48.08 | 766 | $36,829 | 60,004 |
| 2018-07-30 23:32 | 2018-07-26 | CRY | Artivion Inc. | Davis John E | Officer | OPT+S | $31.00 | 3,391 | $105,121 | 52,743 |
| 2018-07-30 22:06 | 2018-07-26 | UFPT | UFP TECHNOLOGIES INC | Smith W David | Officer | OPT+S | $34.00 | 14 | $476 | 12,551 |
| 2018-07-31 03:24 | 2018-07-26 | PEN | Penumbra Inc | Davis Daniel Donen | Officer | OPT+S | $144.43 | 7,500 | $1,083,243 | 65,287 |
| 2018-07-30 23:39 | 2018-07-27 | NVCR | NovoCure Ltd | GROENHUYSEN WILHELMUS CM | Officer | SELL | $35.08 | 62,727 | $2,200,338 | 116,585 |
| 2018-07-30 22:41 | 2018-07-27 | UTMD | UTAH MEDICAL PRODUCTS INC | PAYNE BARBARA A | Director | SELL | $96.00 | 1,500 | $144,000 | 24,932 |
| 2018-07-28 02:33 | 2018-07-25 | LMAT | LEMAITRE VASCULAR INC | LeMaitre George W | Director, Officer, 10% owner | OPT+S | $37.34 | 39,820 | $1,487,042 | 3,044,704 |
| 2018-07-28 00:09 | 2018-07-25 | DXCM | DEXCOM INC | Pacelli Steven Robert | Officer | SELL | $101.91 | 3,114 | $317,335 | 125,571 |
| 2018-07-25 23:44 | 2018-07-23 | CRY | Artivion Inc. | Holloway Jean F | Officer | OPT+S | $30.50 | 1,500 | $45,750 | 58,735 |
| 2018-07-26 01:48 | 2018-07-23 | PEN | Penumbra Inc | Pray James Robert | Officer | SELL | $141.86 | 8,125 | $1,152,579 | 509,806 |
| 2018-07-25 23:15 | 2018-07-23 | IART | INTEGRA LIFESCIENCES HOLDINGS CORP | ESSIG STUART | Director | OPT+S | $63.54 | 69,871 | $4,439,757 | 1,418,919 |
| 2018-07-26 02:54 | 2018-07-23 | DXCM | DEXCOM INC | DOUBLEDAY RICHARD | Officer | SELL | $102.48 | 2,581 | $264,514 | 1,067 |
| 2018-07-24 02:00 | 2018-07-19 | PEN | Penumbra Inc | Davis Daniel Donen | Officer | OPT+S | $139.92 | 7,500 | $1,049,415 | 65,287 |
| 2018-07-24 02:19 | 2018-07-20 | TFX | TELEFLEX INC | POWELL THOMAS E | Officer | OPT+S | $277.06 | 5,200 | $1,440,709 | 10,151 |
| 2018-07-21 00:50 | 2018-07-18 | IRTC | iRhythm Holdings, Inc. | Garrett Matthew C. | Officer | OPT+S | $83.91 | 14,537 | $1,219,800 | 20,204 |
| 2018-07-20 23:46 | 2018-06-18 | TCMD | TACTILE SYSTEMS TECHNOLOGY INC | Folkes Robert J. | Officer | OPT+S | $55.07 | 4,964 | $273,351 | 118,236 |
| 2018-07-20 03:16 | 2018-07-17 | GMED | GLOBUS MEDICAL INC | Paul David C | Director, Officer, 10% owner | SELL | $52.95 | 6,841 | $362,231 | 605,871 |
| 2018-07-20 00:06 | 2018-07-17 | IART | INTEGRA LIFESCIENCES HOLDINGS CORP | ESSIG STUART | Director | OPT+S | $63.50 | 31,353 | $1,990,981 | 1,418,919 |
| 2018-07-19 23:04 | 2018-07-17 | TCMD | TACTILE SYSTEMS TECHNOLOGY INC | Mattys Gerald R. | Director, Officer | OPT+S | $54.50 | 25,000 | $1,362,508 | 294,129 |
| 2018-07-19 02:51 | 2018-07-17 | DYNT | DYNATRONICS CORP | CULLIMORE KELVYN H JR | Director | BUY | $0.00 | 5,000 | $0 | 169,685 |
| 2018-07-19 00:14 | 2018-07-16 | NVCR | NovoCure Ltd | Palti Yoram | Director, Officer | SELL | $0.00 | 30,000 | $0 | 1,071,054 |
| 2018-07-18 22:49 | 2018-07-17 | RVP | RETRACTABLE TECHNOLOGIES INC | SHAW THOMAS J | Director, Officer, 10% owner | BUY | $0.85 | 23,451 | $19,898 | 13,611,097 |
| 2018-07-19 00:50 | 2018-07-16 | DXCM | DEXCOM INC | Balo Andrew K | Officer | SELL | $99.56 | 5,000 | $497,816 | 103,567 |
| 2018-07-19 00:50 | 2018-07-16 | DXCM | DEXCOM INC | GREGG TERRANCE H | Director, Officer | SELL | $99.56 | 10,000 | $995,561 | 50,882 |
| 2018-07-18 23:13 | 2018-07-16 | TCMD | TACTILE SYSTEMS TECHNOLOGY INC | Rishe Bryan | Officer | SELL | $52.49 | 3,000 | $157,470 | 79,328 |
| 2018-07-17 21:05 | 2018-07-16 | RMD | RESMED INC | Sandercock Brett | Officer | SELL | $109.01 | 2,000 | $218,020 | 65,072 |
| 2018-07-18 02:30 | 2018-07-16 | TFX | TELEFLEX INC | SMITH BENSON | Director | OPT+S | $272.07 | 9,331 | $2,538,643 | 68,556 |
| 2018-07-17 04:55 | 2018-07-12 | BSTG | Harvard Apparatus Regenerative Technology, Inc. | DST Capital LLC | 10% owner | BUY | $4.00 | 5,000 | $20,000 | 30,722 |
| 2018-07-16 19:06 | 2018-07-13 | RVP | RETRACTABLE TECHNOLOGIES INC | SHAW THOMAS J | Director, Officer, 10% owner | BUY | $0.82 | 21,039 | $17,187 | 13,584,646 |
| 2018-07-14 02:32 | 2018-07-05 | DYNT | DYNATRONICS CORP | von Jako Christopher Richard | Director, Officer | BUY | $0.00 | 1,427 | $0 | 39,421 |
| 2018-07-14 02:23 | 2018-07-05 | DYNT | DYNATRONICS CORP | Wirthlin David Alma | Officer | BUY | $0.00 | 78 | $0 | 411 |
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.