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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2020-03-14 04:29 | 2020-03-11 | DXCM | DEXCOM INC | Balo Andrew K | Officer | SELL | $264.82 | 8,161 | $2,161,231 | 58,588 |
| 2020-03-14 04:28 | 2020-03-11 | DXCM | DEXCOM INC | ACE HEATHER S | Officer | SELL | $264.69 | 6,207 | $1,642,902 | 38,584 |
| 2020-03-14 04:28 | 2020-03-11 | DXCM | DEXCOM INC | Abbey Donald | Officer | SELL | $264.68 | 8,050 | $2,130,657 | 69,707 |
| 2020-03-14 04:20 | 2020-03-11 | DXCM | DEXCOM INC | Selvaraj Shelly Ramasamy | Officer | SELL | $264.70 | 3,387 | $896,528 | 27,008 |
| 2020-03-14 04:17 | 2020-03-11 | DXCM | DEXCOM INC | Leach Jacob Steven | Officer | SELL | $264.69 | 6,909 | $1,828,756 | 127,498 |
| 2020-03-14 04:17 | 2020-03-11 | DXCM | DEXCOM INC | Sylvain Jereme M | Officer | SELL | $264.83 | 613 | $162,340 | 13,417 |
| 2020-03-14 04:17 | 2020-03-11 | DXCM | DEXCOM INC | MOY JEFFREY | Officer | SELL | $264.76 | 6,203 | $1,642,290 | 31,397 |
| 2020-03-14 04:17 | 2020-03-11 | DXCM | DEXCOM INC | Blackford Quentin S. | Officer | SELL | $248.98 | 12,561 | $3,127,448 | 69,203 |
| 2020-03-14 04:17 | 2020-03-11 | DXCM | DEXCOM INC | SAYER KEVIN R | Director, Officer | SELL | $264.82 | 20,374 | $5,395,432 | 190,016 |
| 2020-03-14 04:11 | 2020-03-11 | DXCM | DEXCOM INC | Pacelli Steven Robert | Officer | SELL | $264.82 | 8,049 | $2,131,535 | 84,313 |
| 2020-03-14 04:07 | 2020-03-11 | DXCM | DEXCOM INC | Murphy Patrick Michael | Officer | SELL | $264.77 | 4,082 | $1,080,794 | 30,676 |
| 2020-03-13 03:13 | 2020-03-11 | ATEC | Alphatec Holdings, Inc. | Snider Brian | Officer | BUY | $4.48 | 45,000 | $201,600 | 493,007 |
| 2020-03-13 00:40 | 2020-03-11 | ATEC | Alphatec Holdings, Inc. | Sponsel David | Officer | BUY | $4.51 | 11,000 | $49,610 | 443,019 |
| 2020-03-12 19:55 | 2020-03-10 | ATEC | Alphatec Holdings, Inc. | Black Jeffrey G. | Officer | SELL | $5.08 | 6,563 | $33,307 | 505,299 |
| 2020-03-13 00:02 | 2020-03-12 | NEPH | NEPHROS INC | Evans Daron | Director, Officer | BUY | $6.65 | 2,500 | $16,625 | 134,215 |
| 2020-03-12 23:50 | 2020-03-12 | NEPH | NEPHROS INC | Astor Andrew | Officer | BUY | $6.70 | 1,000 | $6,700 | 70,008 |
| 2020-03-13 04:39 | 2020-03-10 | CTSO | Cytosorbents Corp | Capponi Vincent | Officer | OPT+S | $6.00 | 4,677 | $28,062 | 417,649 |
| 2020-03-12 23:30 | 2020-03-10 | TCMD | TACTILE SYSTEMS TECHNOLOGY INC | Rishe Bryan | Officer | SELL | $43.75 | 2,330 | $101,938 | 55,188 |
| 2020-03-12 03:10 | 2020-03-09 | PEN | Penumbra Inc | Elsesser Adam | Director, Officer | SELL | $172.01 | 8,000 | $1,376,096 | 1,029,582 |
| 2020-03-11 18:08 | 2020-03-10 | UFPT | UFP TECHNOLOGIES INC | KOZIN MARC D | Director | SELL | $46.06 | 4,933 | $227,224 | 40,604 |
| 2020-03-12 00:31 | 2020-03-10 | STIM | Neuronetics, Inc. | Furlong Stephen | Officer | BUY | $2.00 | 25,000 | $50,000 | 274,184 |
| 2020-03-12 00:28 | 2020-03-10 | STIM | Neuronetics, Inc. | MACAN WILLIAM ANDREW | Officer | BUY | $2.00 | 5,000 | $10,000 | 182,399 |
| 2020-03-12 00:54 | 2020-03-11 | RVP | RETRACTABLE TECHNOLOGIES INC | SHAW THOMAS J | Director, Officer, 10% owner | BUY | $1.47 | 3,698 | $5,436 | 14,526,846 |
| 2020-03-11 17:49 | 2020-03-10 | RVP | RETRACTABLE TECHNOLOGIES INC | SHAW THOMAS J | Director, Officer, 10% owner | BUY | $1.52 | 11,528 | $17,523 | 14,523,148 |
| 2020-03-11 00:46 | 2020-03-06 | HAE | HAEMONETICS CORP | Scanlan Jacqueline | Officer | OPT+S | $100.21 | 1,624 | $162,737 | 4,383 |
| 2020-03-11 01:16 | 2020-03-09 | HAE | HAEMONETICS CORP | Basil Michelle L | Officer | SELL | $98.00 | 395 | $38,710 | 14,364 |
| 2020-03-10 23:22 | 2020-03-06 | NVCR | NovoCure Ltd | Ambrogi Michael J. | Officer | SELL | $69.53 | 2,274 | $158,120 | 220,867 |
| 2020-03-10 23:20 | 2020-03-06 | NVCR | NovoCure Ltd | Shah Pritesh | Officer | OPT+S | $66.76 | 6,151 | $410,622 | 100,693 |
| 2020-03-10 23:15 | 2020-03-06 | NVCR | NovoCure Ltd | Longsworth Todd Christopher | Officer | SELL | $69.53 | 2,499 | $173,765 | 86,753 |
| 2020-03-11 00:08 | 2020-03-06 | INSP | Inspire Medical Systems, Inc. | Khuong Chau Quang | Director | SELL | $83.52 | 500,000 | $41,760,000 | 347,000 |
| 2020-03-11 03:05 | 2020-03-06 | IRTC | iRhythm Holdings, Inc. | Vort David A | Officer | SELL | $97.29 | 7,440 | $723,838 | 16,656 |
| 2020-03-10 23:13 | 2020-03-06 | NVCR | NovoCure Ltd | GROENHUYSEN WILHELMUS CM | Officer | SELL | $69.53 | 3,123 | $217,155 | 140,386 |
| 2020-03-10 23:18 | 2020-03-06 | NVCR | NovoCure Ltd | DOYLE WILLIAM F | Director, Officer | SELL | $69.53 | 4,320 | $300,387 | 510,511 |
| 2020-03-11 00:51 | 2020-03-06 | MMSI | MERIT MEDICAL SYSTEMS INC | ANDERSON A SCOTT | Director | OPT+S | $37.29 | 6,638 | $247,531 | 18,762 |
| 2020-03-10 17:44 | 2020-03-09 | RVP | RETRACTABLE TECHNOLOGIES INC | SHAW THOMAS J | Director, Officer, 10% owner | BUY | $1.55 | 10,000 | $15,500 | 14,511,620 |
| 2020-03-10 23:54 | 2020-03-06 | PODD | INSULET CORP | Lemoine David A | Director | SELL | $177.49 | 1,042 | $184,945 | 6,948 |
| 2020-03-11 03:56 | 2020-03-09 | DXCM | DEXCOM INC | ACE HEATHER S | Officer | SELL | $269.75 | 7,885 | $2,126,955 | 44,791 |
| 2020-03-11 03:29 | 2020-03-09 | DXCM | DEXCOM INC | Selvaraj Shelly Ramasamy | Officer | SELL | $261.00 | 439 | $114,579 | 30,395 |
| 2020-03-11 03:19 | 2020-03-09 | DXCM | DEXCOM INC | Blackford Quentin S. | Officer | SELL | $261.00 | 891 | $232,551 | 81,764 |
| 2020-03-11 02:34 | 2020-03-09 | DXCM | DEXCOM INC | SAYER KEVIN R | Director, Officer | SELL | $269.02 | 6,000 | $1,614,098 | 210,390 |
| 2020-03-11 01:49 | 2020-03-09 | DXCM | DEXCOM INC | Murphy Patrick Michael | Officer | SELL | $261.00 | 500 | $130,500 | 34,758 |
| 2020-03-11 00:06 | 2020-03-06 | INSP | Inspire Medical Systems, Inc. | ORBIMED ADVISORS LLC | Director | SELL | $83.52 | 500,000 | $41,760,000 | 347,000 |
| 2020-03-09 17:57 | 2020-03-05 | RVP | RETRACTABLE TECHNOLOGIES INC | SHAW THOMAS J | Director, Officer, 10% owner | BUY | $1.69 | 11,500 | $19,435 | 14,501,620 |
| 2020-03-10 00:43 | 2020-03-05 | TCMD | TACTILE SYSTEMS TECHNOLOGY INC | Folkes Robert J. | Officer | SELL | $48.67 | 180 | $8,761 | 76,303 |
| 2020-03-10 00:41 | 2020-03-05 | TCMD | TACTILE SYSTEMS TECHNOLOGY INC | Mattys Gerald R. | Director, Officer | SELL | $48.49 | 560 | $27,152 | 272,615 |
| 2020-03-10 00:30 | 2020-03-05 | TCMD | TACTILE SYSTEMS TECHNOLOGY INC | Rishe Bryan | Officer | SELL | $48.87 | 204 | $9,969 | 57,518 |
| 2020-03-10 00:26 | 2020-03-05 | TCMD | TACTILE SYSTEMS TECHNOLOGY INC | Moen Brent | Officer | SELL | $48.64 | 175 | $8,512 | 23,897 |
| 2020-03-07 02:16 | 2020-03-04 | INSP | Inspire Medical Systems, Inc. | Ban Randy | Officer | OPT+S | $86.55 | 10,000 | $865,465 | 0 |
| 2020-03-07 05:10 | 2020-03-04 | MMSI | MERIT MEDICAL SYSTEMS INC | Miller Franklin J | Director | OPT+S | $38.07 | 15,000 | $571,050 | 2,334 |
| 2020-03-07 04:30 | 2020-03-05 | IRMD | IRADIMED CORP | JOHNSON BRENT | Officer | OPT+S | $23.11 | 12,000 | $277,260 | 2,940 |
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.