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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-05-07 20:07 | 2026-05-05 | MMSI | MERIT MEDICAL SYSTEMS INC | Voigt Michel J. | Officer | BUY | $60.65 | 2,250 | $136,463 | 2,265 |
| 2026-05-07 20:09 | 2026-05-06 | MMSI | MERIT MEDICAL SYSTEMS INC | Parra Raul Jr. | Officer | BUY | $61.01 | 1,500 | $91,515 | 58,843 |
| 2026-05-07 20:12 | 2026-05-06 | MMSI | MERIT MEDICAL SYSTEMS INC | Aronson Martha Goldberg | Director, Officer | BUY | $60.44 | 2,000 | $120,880 | 49,792 |
| 2026-05-07 22:15 | 2026-05-05 | OFIX | Orthofix Medical Inc. | Engine Capital Management, LP | 10% owner | BUY | $12.08 | 184,896 | $2,232,934 | 382,450 |
| 2026-05-06 17:51 | 2026-05-04 | IRMD | IRADIMED CORP | Susi Roger E. | Director, Officer, 10% owner | SELL | $85.71 | 7,500 | $642,862 | 2,187,500 |
| 2026-05-05 20:36 | 2026-05-04 | IRTC | iRhythm Holdings, Inc. | Lawrence Brian Lee | Officer | SELL | $120.80 | 1,014 | $122,491 | 20,154 |
| 2026-05-05 22:31 | 2026-05-01 | CERS | CERUS CORP | Jayaraman Vivek K | Officer | SELL | $3.00 | 16,667 | $50,001 | 1,673,374 |
| 2026-05-05 21:06 | 2026-05-04 | SIBN | SI-BONE, Inc. | DUNN JEFFREY W | Director | SELL | $13.15 | 337 | $4,432 | 9,157 |
| 2026-05-04 20:05 | 2026-04-30 | SNWV | SANUWAVE Health, Inc. | Opaleye Management Inc. | 10% owner | SELL | $16.14 | 35,581 | $574,242 | 5,000 |
| 2026-05-04 22:40 | 2026-04-30 | GKOS | GLAUKOS Corp | Thurman Alex R. | Officer | OPT+S | $140.00 | 10,000 | $1,400,000 | 43,681 |
| 2026-05-04 22:07 | 2026-05-01 | GKOS | GLAUKOS Corp | WEN LEANA | Director | SELL | $143.35 | 1,700 | $243,695 | 19,739 |
| 2026-05-04 22:12 | 2026-05-01 | GKOS | GLAUKOS Corp | Gilliam Joseph E | Officer | SELL | $143.54 | 19,573 | $2,809,508 | 73,419 |
| 2026-05-04 12:34 | 2026-05-01 | ANIK | Anika Therapeutics, Inc. | HENNEMAN JOHN B III | Director | BUY | $14.66 | 5,000 | $73,320 | 54,871 |
| 2026-05-01 00:46 | 2026-04-28 | HTFL | Heartflow, Inc. | Bain Capital Life Sciences Investors, LLC | 10% owner | SELL | $29.45 | 2,000,000 | $58,898,400 | 8,448,158 |
| 2026-04-30 21:22 | 2026-04-30 | ANIK | Anika Therapeutics, Inc. | Griffin Stephen D. | Director, Officer | BUY | $12.29 | 12,200 | $149,881 | 36,163 |
| 2026-04-30 20:10 | 2026-04-28 | SNWV | SANUWAVE Health, Inc. | Opaleye Management Inc. | 10% owner | SELL | $18.05 | 70,648 | $1,274,970 | 6,500 |
| 2026-04-30 18:30 | 2026-04-27 | IRMD | IRADIMED CORP | Susi Roger E. | Director, Officer, 10% owner | SELL | $87.69 | 7,500 | $657,709 | 2,195,000 |
| 2026-04-29 21:36 | 2026-04-27 | OBIO | Orchestra BioMed Holdings, Inc. | RTW INVESTMENTS, LP | 10% owner | SELL | $4.13 | 32 | $132 | 9,556,063 |
| 2026-04-29 16:19 | 2026-04-27 | WST | WEST PHARMACEUTICAL SERVICES INC | Winters Chad | Officer | OPT+S | $300.67 | 896 | $269,399 | 1,523 |
| 2026-04-29 16:22 | 2026-04-27 | WST | WEST PHARMACEUTICAL SERVICES INC | Favorite Annette F | Officer | OPT+S | $305.20 | 2,817 | $859,753 | 16,828 |
| 2026-04-28 11:44 | 2026-04-27 | BDX | BECTON DICKINSON & CO | Feld Michael | Officer | SELL | $151.94 | 74 | $11,244 | 21,159 |
| 2026-04-24 20:05 | 2026-04-16 | BEAT | HeartBeam, Inc. | Ferrari Richard | Director | BUY | $0.80 | 57,500 | $46,000 | 286,636 |
| 2026-04-22 19:03 | 2026-04-20 | IRMD | IRADIMED CORP | Susi Roger E. | Director, Officer, 10% owner | SELL | $92.55 | 7,500 | $694,124 | 2,202,500 |
| 2026-04-22 13:39 | 2026-04-20 | STIM | Neuronetics, Inc. | Chernett Jorey | 10% owner | BUY | $1.55 | 200,000 | $309,000 | 9,978,988 |
| 2026-04-21 22:17 | 2026-04-17 | SNWV | SANUWAVE Health, Inc. | Opaleye Management Inc. | 10% owner | SELL | $20.46 | 16,469 | $336,982 | 954,798 |
| 2026-04-20 20:11 | 2026-04-16 | OFIX | Orthofix Medical Inc. | Cedron Jorge Andres | Officer | SELL | $12.82 | 3,743 | $47,985 | 59,006 |
| 2026-04-17 00:46 | 2026-04-16 | BEAT | HeartBeam, Inc. | STROME MARK E | Director | BUY | $0.80 | 750,000 | $600,000 | 3,650,000 |
| 2026-04-17 00:46 | 2026-04-16 | BEAT | HeartBeam, Inc. | Ortigas-Wedekind Marga | Director | BUY | $0.80 | 25,000 | $20,000 | 137,293 |
| 2026-04-17 00:47 | 2026-04-16 | BEAT | HeartBeam, Inc. | ENO Robert Paul | Officer | BUY | $0.80 | 12,500 | $10,000 | 36,742 |
| 2026-04-17 00:47 | 2026-04-16 | BEAT | HeartBeam, Inc. | Ferrari Richard | Director | BUY | $0.80 | 62,500 | $50,000 | 291,636 |
| 2026-04-17 00:47 | 2026-04-16 | BEAT | HeartBeam, Inc. | Vajdic Branislav | Director | BUY | $0.80 | 31,250 | $25,000 | 909,914 |
| 2026-04-17 00:47 | 2026-04-16 | BEAT | HeartBeam, Inc. | JAFF MICHAEL R | Director | BUY | $0.80 | 31,250 | $25,000 | 31,250 |
| 2026-04-17 00:48 | 2026-04-16 | BEAT | HeartBeam, Inc. | Elfrink Willem | Director | BUY | $0.80 | 187,500 | $150,000 | 538,667 |
| 2026-04-17 00:48 | 2026-04-16 | BEAT | HeartBeam, Inc. | Cruickshank Tim | Officer | BUY | $0.80 | 31,250 | $25,000 | 72,230 |
| 2026-04-16 23:27 | 2026-04-15 | DXCM | DEXCOM INC | Brown Michael Jon | Officer | SELL | $63.04 | 1,700 | $107,168 | 111,204 |
| 2026-04-16 21:03 | 2026-04-15 | KMTS | KESTRA MEDICAL TECHNOLOGIES, LTD. | Webster Brian Daniel | Director, Officer | SELL | $20.04 | 15,000 | $300,671 | 349,786 |
| 2026-04-15 18:37 | 2026-04-13 | IRMD | IRADIMED CORP | Susi Roger E. | Director, Officer, 10% owner | SELL | $92.96 | 7,500 | $697,190 | 2,210,000 |
| 2026-04-14 21:53 | 2026-04-10 | HTFL | Heartflow, Inc. | Farquhar John C.M. | Director, Officer | SELL | $26.72 | 22,562 | $602,857 | 549,163 |
| 2026-04-14 20:07 | 2026-04-10 | GKOS | GLAUKOS Corp | Navratil Tomas | Officer | SELL | $117.62 | 2,093 | $246,175 | 90,370 |
| 2026-04-09 21:16 | 2026-04-06 | SGHT | Sight Sciences, Inc. | HAYDEN JEREMY B. | Officer | SELL | $3.55 | 13,761 | $48,852 | 369,770 |
| 2026-04-09 21:17 | 2026-04-06 | SGHT | Sight Sciences, Inc. | Rodberg James | Officer | SELL | $3.55 | 7,231 | $25,670 | 230,939 |
| 2026-04-09 20:18 | 2024-05-30 | MMM | 3M CO | Goralski Christian T JR | Officer | BUY | $107.18 | 17 | $1,822 | 6,971 |
| 2026-04-09 15:44 | 2026-04-07 | RMD | RESMED INC | Farrell Michael J. | Director, Officer | OPT+S | $225.50 | 4,991 | $1,125,486 | 466,223 |
| 2026-04-07 19:26 | 2026-04-06 | IRMD | IRADIMED CORP | Susi Roger E. | Director, Officer, 10% owner | SELL | $95.63 | 7,500 | $717,208 | 2,217,500 |
| 2026-04-07 00:02 | 2026-04-02 | PEN | Penumbra Inc | Grewal Harpreet | Director | SELL | $328.22 | 100 | $32,822 | 8,719 |
| 2026-04-03 20:28 | 2026-04-02 | SGHT | Sight Sciences, Inc. | Bauerlein Alison | Officer | SELL | $3.48 | 25,874 | $90,042 | 701,621 |
| 2026-04-03 20:28 | 2026-04-02 | SGHT | Sight Sciences, Inc. | Badawi David | Director, Officer | SELL | $3.48 | 8,168 | $28,425 | 1,990,290 |
| 2026-04-03 20:27 | 2026-04-01 | SGHT | Sight Sciences, Inc. | Taylor Brenton | Officer | SELL | $3.70 | 2,869 | $10,615 | 267,807 |
| 2026-04-03 20:27 | 2026-04-01 | SGHT | Sight Sciences, Inc. | Badawi Paul | Director, Officer, 10% owner | SELL | $3.70 | 29,244 | $108,203 | 6,151,156 |
| 2026-04-03 22:09 | 2026-04-01 | SIBN | SI-BONE, Inc. | PISETSKY MICHAEL A. | Officer | SELL | $12.91 | 3,134 | $40,466 | 282,840 |
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.