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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2022-03-22 01:26 | 2022-03-16 | TNDM | TANDEM DIABETES CARE INC | BERGER DAVID B | Officer | OPT+S | $108.37 | 5,000 | $541,843 | 4,717 |
| 2022-03-21 19:22 | 2022-03-17 | INFU | InfuSystem Holdings, Inc | Lehman Gregg Owen | Director | OPT+S | $10.75 | 20,000 | $215,000 | 346 |
| 2022-03-18 21:04 | 2022-03-17 | BJDX | Bluejay Diagnostics, Inc. | Wurth Douglas Clark | Director, 10% owner | BUY | $1.18 | 40,000 | $47,120 | 2,286,349 |
| 2022-03-17 16:00 | 2022-03-16 | BJDX | Bluejay Diagnostics, Inc. | Wurth Douglas Clark | Director, 10% owner | BUY | $1.09 | 60,000 | $65,400 | 2,246,349 |
| 2022-03-17 14:39 | 2022-03-16 | IRMD | IRADIMED CORP | Susi Roger E. | Director, Officer, 10% owner | SELL | $46.65 | 10,000 | $466,547 | 692,950 |
| 2022-03-17 23:45 | 2022-03-15 | GMED | GLOBUS MEDICAL INC | TOBIN JAMES R | Director | OPT+S | $65.47 | 8,850 | $579,418 | 0 |
| 2022-03-17 23:30 | 2022-03-15 | DXCM | DEXCOM INC | Dolan Matthew Vincent | Officer | SELL | $424.68 | 2,186 | $928,359 | 6,634 |
| 2022-03-17 23:29 | 2022-03-15 | DXCM | DEXCOM INC | SAYER KEVIN R | Director, Officer | SELL | $409.77 | 3,000 | $1,229,295 | 97,883 |
| 2022-03-17 23:00 | 2022-03-15 | MODD | Modular Medical, Inc. | DiPerna Paul | Director, Officer, 10% owner | BUY | $4.00 | 10,000 | $40,000 | 2,553,586 |
| 2022-03-17 04:54 | 2022-03-14 | BJDX | Bluejay Diagnostics, Inc. | Kinder Gordon Winston | Officer | BUY | $0.97 | 16,000 | $15,530 | 16,000 |
| 2022-03-16 16:01 | 2022-03-14 | ANIK | Anika Therapeutics Inc. | Colleran David | Officer | BUY | $26.65 | 1,500 | $39,978 | 8,367 |
| 2022-03-16 23:25 | 2022-03-15 | BSX | BOSTON SCIENTIFIC CORP | Carruthers Wendy | Officer | SELL | $42.34 | 7,500 | $317,587 | 154,913 |
| 2022-03-17 03:28 | 2022-03-14 | TELA | TELA Bio, Inc. | EW HEALTHCARE PARTNERS FUND 2, L.P. | BUY | $11.67 | 5,904 | $68,886 | 3,305,403 | |
| 2022-03-16 22:24 | 2022-03-15 | RMD | RESMED INC | Farrell Michael J. | Officer | OPT+S | $242.37 | 5,675 | $1,375,422 | 405,229 |
| 2022-03-17 00:02 | 2022-03-14 | TNDM | TANDEM DIABETES CARE INC | McGroddy-Goetz Kathleen | Director | SELL | $106.00 | 405 | $42,930 | 814 |
| 2022-03-16 21:51 | 2022-03-15 | RMD | RESMED INC | Douglas Robert Andrew | Officer | OPT+S | $238.07 | 8,000 | $1,904,560 | 17,175 |
| 2022-03-16 18:16 | 2022-03-14 | WST | WEST PHARMACEUTICAL SERVICES INC | Lai Quintin J | Officer | OPT+S | $371.69 | 8,016 | $2,979,492 | 5,372 |
| 2022-03-17 01:29 | 2022-03-14 | CERS | CERUS CORP | Moore Carol | Officer | OPT+S | $5.04 | 28,513 | $143,694 | 279,268 |
| 2022-03-17 01:25 | 2022-03-14 | CERS | CERUS CORP | Menard Chrystal | Officer | OPT+S | $5.04 | 30,307 | $152,732 | 174,871 |
| 2022-03-15 16:00 | 2022-03-11 | ANIK | Anika Therapeutics Inc. | Thompson Jeffery S | Director | BUY | $24.66 | 2,000 | $49,318 | 17,121 |
| 2022-03-16 00:44 | 2022-03-11 | ATEC | Alphatec Holdings, Inc. | Pritzker Jennifer N. | 10% owner | BUY | $10.64 | 1,100 | $11,704 | 3,731 |
| 2022-03-16 05:00 | 2022-03-14 | CERS | CERUS CORP | Greenman William Mariner | Director, Officer | OPT+S | $5.04 | 165,021 | $831,640 | 1,967,192 |
| 2022-03-16 04:59 | 2022-03-14 | CERS | CERUS CORP | Jayaraman Vivek K | Officer | OPT+S | $5.04 | 41,734 | $210,318 | 369,414 |
| 2022-03-16 04:57 | 2022-03-14 | CERS | CERUS CORP | CORASH LAURENCE M | Officer | OPT+S | $5.04 | 30,307 | $152,735 | 2,126,716 |
| 2022-03-16 04:55 | 2022-03-14 | CERS | CERUS CORP | Green Kevin Dennis | Officer | OPT+S | $5.04 | 32,102 | $161,781 | 280,334 |
| 2022-03-16 04:50 | 2022-03-14 | CERS | CERUS CORP | Benjamin Richard J | Officer | OPT+S | $5.04 | 30,307 | $152,735 | 182,665 |
| 2022-03-15 00:01 | 2022-03-11 | PRCT | PROCEPT BioRobotics Corp | Wood Morgan Colby | Director | BUY | $24.43 | 940 | $22,961 | 147,713 |
| 2022-03-14 16:00 | 2022-03-11 | ANIK | Anika Therapeutics Inc. | Levitz Michael L | Officer | BUY | $24.62 | 4,000 | $98,476 | 15,924 |
| 2022-03-14 19:14 | 2022-03-10 | RMD | RESMED INC | Sandercock Brett | Officer | OPT+S | $241.29 | 2,500 | $603,225 | 106,354 |
| 2022-03-14 16:01 | 2022-03-11 | ANIK | Anika Therapeutics Inc. | Blanchard Cheryl R | Director, Officer | BUY | $25.57 | 8,100 | $207,143 | 59,992 |
| 2022-03-15 01:01 | 2022-03-10 | TMCI | TREACE MEDICAL CONCEPTS, INC. | TREACE JAMES T | Director | SELL | $19.21 | 2 | $38 | 0 |
| 2022-03-14 23:22 | 2022-03-10 | DXCM | DEXCOM INC | Patterson Chad | Officer | SELL | $401.27 | 776 | $311,386 | 15,228 |
| 2022-03-14 23:21 | 2022-03-10 | DXCM | DEXCOM INC | Selvaraj Shelly Ramasamy | Officer | SELL | $401.27 | 2,366 | $949,405 | 11,454 |
| 2022-03-12 00:54 | 2022-03-09 | NVCR | NovoCure Ltd | Shah Pritesh | Officer | OPT+S | $71.19 | 3,669 | $261,196 | 83,187 |
| 2022-03-12 00:52 | 2022-03-09 | SRTS | Sensus Healthcare, Inc. | Sardano Joseph C | Director, Officer | SELL | $10.16 | 133,356 | $1,354,777 | 1,330,293 |
| 2022-03-11 04:26 | 2022-03-08 | TMCI | TREACE MEDICAL CONCEPTS, INC. | Lubben Terry W. | Officer | BUY | $18.62 | 2,500 | $46,550 | 5,850 |
| 2022-03-10 19:06 | 2022-03-09 | SRTS | Sensus Healthcare, Inc. | Soro Nicolas | Officer | OPT+S | $10.20 | 10,000 | $102,000 | 3,546 |
| 2022-03-11 00:29 | 2022-03-08 | MDXG | MIMEDX GROUP, INC. | Turner Scott M | Officer | SELL | $4.86 | 4,155 | $20,189 | 170,431 |
| 2022-03-11 00:28 | 2022-03-08 | MDXG | MIMEDX GROUP, INC. | Kashyap Rohit | Officer | SELL | $4.86 | 8,770 | $42,613 | 263,844 |
| 2022-03-11 00:27 | 2022-03-08 | MDXG | MIMEDX GROUP, INC. | Graves Mark | Officer | SELL | $4.86 | 3,234 | $15,714 | 89,014 |
| 2022-03-11 00:27 | 2022-03-08 | MDXG | MIMEDX GROUP, INC. | Carlson Peter M | Officer | SELL | $4.86 | 10,743 | $52,200 | 382,698 |
| 2022-03-11 00:25 | 2022-03-08 | MDXG | MIMEDX GROUP, INC. | Hulse William Frank IV | Officer | SELL | $4.86 | 9,990 | $48,541 | 186,345 |
| 2022-03-11 00:21 | 2022-03-08 | MDXG | MIMEDX GROUP, INC. | Stein Robert Benjamin | Officer | SELL | $4.86 | 11,672 | $56,714 | 170,034 |
| 2022-03-11 00:20 | 2022-03-08 | MDXG | MIMEDX GROUP, INC. | Phelan William Lawrence | Officer | SELL | $4.86 | 3,268 | $15,879 | 97,360 |
| 2022-03-11 02:41 | 2022-03-08 | ATEC | Alphatec Holdings, Inc. | Pritzker Jennifer N. | 10% owner | BUY | $11.44 | 4,000 | $45,750 | 4,000 |
| 2022-03-11 02:26 | 2022-03-07 | IRMD | IRADIMED CORP | Susi Roger E. | Director, Officer, 10% owner | SELL | $47.04 | 10,000 | $470,353 | 702,950 |
| 2022-03-11 00:31 | 2022-03-08 | MDXG | MIMEDX GROUP, INC. | WRIGHT TIMOTHY R | Director, Officer | SELL | $4.86 | 45,611 | $221,624 | 1,220,645 |
| 2022-03-11 00:58 | 2022-03-09 | STIM | Neuronetics, Inc. | Furlong Stephen | Officer | SELL | $3.00 | 10,029 | $30,046 | 404,270 |
| 2022-03-11 04:07 | 2022-03-08 | GMED | GLOBUS MEDICAL INC | TOBIN JAMES R | Director | OPT+S | $70.65 | 14,484 | $1,023,245 | 0 |
| 2022-03-10 00:00 | 2021-09-13 | PDEX | PRO DEX INC | Philp Katrina Marie Kramer | Director | BUY | $24.41 | 4,000 | $97,640 | 10,796 |
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.