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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2025-10-03 19:56 | 2025-10-01 | RMD | RESMED INC | Sandercock Brett | Officer | OPT+S | $274.36 | 3,000 | $823,080 | 86,745 |
| 2025-10-04 02:31 | 2025-10-01 | PEN | Penumbra Inc | Roberts Johanna | Officer | SELL | $249.70 | 600 | $149,820 | 64,257 |
| 2025-10-04 02:30 | 2025-10-01 | PEN | Penumbra Inc | Wilder Thomas | Director | SELL | $253.93 | 186 | $47,231 | 186 |
| 2025-10-04 02:32 | 2025-10-02 | PEN | Penumbra Inc | Grewal Harpreet | Director | SELL | $248.61 | 186 | $46,241 | 8,702 |
| 2025-10-04 02:00 | 2025-10-01 | ATEC | Alphatec Holdings, Inc. | Miles Patrick | Director, Officer | SELL | $13.96 | 100,000 | $1,396,000 | 5,464,078 |
| 2025-10-02 23:32 | 2025-10-01 | RMD | RESMED INC | Rider Michael J | Officer | SELL | $274.36 | 100 | $27,436 | 11,327 |
| 2025-10-03 00:00 | 2025-10-01 | IRMD | IRADIMED CORP | Susi Roger E. | Director, Officer, 10% owner | SELL | $70.19 | 5,000 | $350,957 | 2,347,500 |
| 2025-10-02 00:39 | 2025-09-30 | HRGN | Harvard Apparatus Regenerative Technology, Inc. | He Junli | Director, Officer | BUY | $1.98 | 300 | $594 | 277,575 |
| 2025-10-01 23:22 | 2025-10-01 | BSX | BOSTON SCIENTIFIC CORP | Fitzgerald Joseph Michael | Officer | OPT+S | $98.47 | 50,000 | $4,923,325 | 178,342 |
| 2025-09-30 18:07 | 2025-09-29 | RVP | RETRACTABLE TECHNOLOGIES INC | SHAW THOMAS J | Director, Officer, 10% owner | BUY | $0.82 | 5,000 | $4,101 | 15,678,825 |
| 2025-09-30 03:00 | 2025-09-25 | NXGL | NEXGEL, INC. | Henry Scott Robert | Director | SELL | $2.36 | 7,697 | $18,149 | 121,356 |
| 2025-09-29 23:58 | 2025-09-26 | BDX | BECTON DICKINSON & CO | Feld Michael | Officer | SELL | $181.03 | 58 | $10,500 | 8,302 |
| 2025-09-25 18:50 | 2025-09-24 | RVP | RETRACTABLE TECHNOLOGIES INC | SHAW THOMAS J | Director, Officer, 10% owner | BUY | $0.80 | 17,500 | $14,035 | 15,673,825 |
| 2025-09-24 19:33 | 2025-09-02 | HRGN | Harvard Apparatus Regenerative Technology, Inc. | He Junli | Director, Officer | BUY | $1.85 | 11,225 | $20,766 | 277,275 |
| 2025-09-24 23:05 | 2025-09-23 | IRMD | IRADIMED CORP | Susi Roger E. | Director, Officer, 10% owner | SELL | $71.26 | 5,000 | $356,291 | 2,352,500 |
| 2025-09-25 01:53 | 2025-09-22 | GKOS | GLAUKOS Corp | Navratil Tomas | Officer | SELL | $84.22 | 517 | $43,541 | 76,390 |
| 2025-09-24 18:06 | 2025-09-23 | RVP | RETRACTABLE TECHNOLOGIES INC | SHAW THOMAS J | Director, Officer, 10% owner | BUY | $0.82 | 2,500 | $2,038 | 15,656,325 |
| 2025-09-23 04:24 | 2025-09-18 | PLSE | PULSE BIOSCIENCES, INC. | Danahy Kevin Patrick | Officer | OPT+S | $18.49 | 20,400 | $377,192 | 43,298 |
| 2025-09-20 01:57 | 2025-09-19 | OBIO | Orchestra BioMed Holdings, Inc. | Aryeh Jason | Director | BUY | $2.45 | 1,000 | $2,450 | 108,482 |
| 2025-09-20 03:08 | 2025-09-18 | ATEC | Alphatec Holdings, Inc. | Sponsel David | Officer | SELL | $15.09 | 140,000 | $2,113,244 | 531,861 |
| 2025-09-18 23:15 | 2025-09-17 | IRMD | IRADIMED CORP | Susi Roger E. | Director, Officer, 10% owner | SELL | $71.27 | 5,000 | $356,367 | 2,357,500 |
| 2025-09-19 03:44 | 2025-09-16 | PLSE | PULSE BIOSCIENCES, INC. | UECKER DARRIN | Director, Officer | OPT+S | $16.25 | 45,000 | $731,201 | 122,872 |
| 2025-09-17 16:00 | 2025-09-15 | NVNO | enVVeno Medical Corp | Duhay Francis | Director | SELL | $0.83 | 4,900 | $4,067 | 97,444 |
| 2025-09-16 15:45 | 2025-09-12 | ATRC | AtriCure, Inc. | Noznesky Justin J | Officer | SELL | $36.30 | 3,000 | $108,900 | 83,964 |
| 2025-09-17 00:16 | 2025-09-15 | GMED | GLOBUS MEDICAL INC | RHOADS ANN D | Director | SELL | $58.46 | 10,000 | $584,600 | 25,384 |
| 2025-09-15 23:17 | 2025-03-07 | KMTS | KESTRA MEDICAL TECHNOLOGIES, LTD. | Umberger Traci S | Director, Officer | BUY | $17.00 | 13,500 | $229,500 | 134,336 |
| 2025-09-15 23:25 | 2025-09-12 | SI | SHOULDER INNOVATIONS, INC. | Points Jeffrey S. | Officer | BUY | $15.67 | 1,600 | $25,072 | 52,445 |
| 2025-09-15 23:15 | 2025-09-11 | SI | SHOULDER INNOVATIONS, INC. | Ball Robert Joseph | Director, Officer | BUY | $15.34 | 8,000 | $122,755 | 111,259 |
| 2025-09-15 23:30 | 2025-03-07 | KMTS | KESTRA MEDICAL TECHNOLOGIES, LTD. | Ford Alfred J Jr | Officer | BUY | $17.00 | 20,000 | $340,000 | 49,412 |
| 2025-09-16 04:09 | 2025-09-11 | PLSE | PULSE BIOSCIENCES, INC. | UECKER DARRIN | Director, Officer | OPT+S | $14.96 | 75,000 | $1,121,753 | 122,872 |
| 2025-09-13 03:42 | 2025-09-11 | GKOS | GLAUKOS Corp | Navratil Tomas | Officer | SELL | $88.22 | 5,142 | $453,621 | 75,469 |
| 2025-09-13 03:14 | 2024-09-11 | PLSE | PULSE BIOSCIENCES, INC. | DUGGAN ROBERT W | Director, 10% owner | BUY | $14.48 | 192,599 | $2,788,622 | 47,709,140 |
| 2025-09-12 02:30 | 2025-09-09 | ATEC | Alphatec Holdings, Inc. | Berkowitz Mortimer III | Director | SELL | $15.97 | 62,500 | $998,125 | 618,050 |
| 2025-09-11 19:36 | 2025-09-10 | BDX | BECTON DICKINSON & CO | Fraser Claire | Director | SELL | $187.50 | 917 | $171,938 | 22,226 |
| 2025-09-09 23:12 | 2025-09-08 | BBNX | Beta Bionics, Inc. | Feider Stephen | Officer | OPT+S | $21.13 | 9,900 | $209,151 | 44,041 |
| 2025-09-09 23:15 | 2025-09-05 | NMTC | NEUROONE MEDICAL TECHNOLOGIES Corp | Christianson Mark | Officer | SELL | $0.74 | 30,000 | $22,203 | 231,238 |
| 2025-09-09 23:10 | 2025-09-08 | RMD | RESMED INC | Farrell Michael J. | Officer | OPT+S | $278.14 | 8,009 | $2,227,590 | 467,792 |
| 2025-09-09 23:19 | 2025-09-08 | PODD | INSULET CORP | Singh Prem | Officer | SELL | $347.49 | 687 | $238,726 | 3,456 |
| 2025-09-09 23:16 | 2025-09-08 | PODD | INSULET CORP | Cousin Laetitia | Officer | OPT+S | $348.81 | 797 | $278,002 | 3,890 |
| 2025-09-09 23:18 | 2025-09-05 | DXCM | DEXCOM INC | Malady Kyle | Director | SELL | $80.86 | 667 | $53,934 | 22,667 |
| 2025-09-09 01:15 | 2025-09-04 | BBNX | Beta Bionics, Inc. | Hopman Mark | Officer | OPT+S | $20.34 | 18,229 | $370,836 | 31,215 |
| 2025-09-09 01:15 | 2025-09-05 | BBNX | Beta Bionics, Inc. | Feider Stephen | Officer | OPT+S | $21.00 | 100 | $2,100 | 44,041 |
| 2025-09-08 14:10 | 2025-09-05 | NVCR | NovoCure Ltd | Cordova Ashley | Officer | BUY | $12.22 | 81,550 | $996,859 | 437,569 |
| 2025-09-09 00:38 | 2025-03-07 | KMTS | KESTRA MEDICAL TECHNOLOGIES, LTD. | COHEN RAYMOND W | Director | BUY | $17.00 | 17,000 | $289,000 | 29,994 |
| 2025-09-08 21:55 | 2025-09-05 | UFPT | UFP TECHNOLOGIES INC | CROTEAU DANIEL C | Director | SELL | $206.02 | 2,873 | $591,883 | 855 |
| 2025-09-08 23:06 | 2025-09-04 | DXCM | DEXCOM INC | Stern Sadie | Officer | SELL | $80.00 | 1,466 | $117,280 | 105,223 |
| 2025-09-05 01:45 | 2025-09-02 | BBNX | Beta Bionics, Inc. | Saint Sean | Director, Officer | SELL | $18.86 | 3,359 | $63,361 | 101,202 |
| 2025-09-05 01:45 | 2025-09-02 | BBNX | Beta Bionics, Inc. | Russell Steven Jon | Officer | SELL | $18.86 | 1,015 | $19,146 | 71,017 |
| 2025-09-05 01:45 | 2025-09-02 | BBNX | Beta Bionics, Inc. | Mensinger Mike | Officer | SELL | $18.86 | 1,089 | $20,542 | 91,815 |
| 2025-09-05 01:45 | 2025-09-02 | BBNX | Beta Bionics, Inc. | Hopman Mark | Officer | SELL | $18.86 | 848 | $15,996 | 33,284 |
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.