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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2021-08-03 16:59 | 2021-08-02 | MMM | 3M CO | Rutherford Denise R | Officer | SELL | $198.17 | 3,135 | $621,270 | 8,222 |
| 2021-08-03 18:27 | 2021-08-02 | RMD | RESMED INC | Sodhi Rajwant | Officer | SELL | $269.00 | 1,500 | $403,500 | 24,165 |
| 2021-08-04 00:29 | 2021-07-30 | NVCR | NovoCure Ltd | Benaim Ely | Officer | OPT+S | $154.63 | 1,187 | $183,550 | 28,608 |
| 2021-08-04 01:41 | 2020-03-24 | TTOO | T2 Biosystems, Inc. | GOLDMAN SACHS & CO. LLC | 10% owner | SELL | $0.62 | 41,128 | $25,656 | 4,196,456 |
| 2021-08-04 01:41 | 2020-03-24 | TTOO | T2 Biosystems, Inc. | GOLDMAN SACHS & CO. LLC | 10% owner | BUY | $0.64 | 46,254 | $29,774 | 4,201,582 |
| 2021-08-04 00:31 | 2021-07-30 | TNDM | TANDEM DIABETES CARE INC | Allen Dick | Director | SELL | $107.00 | 2,526 | $270,282 | 5,000 |
| 2021-08-03 18:41 | 2021-08-02 | KIDS | ORTHOPEDIATRICS CORP | Berry Bernie B III | Director | SELL | $66.60 | 2,000 | $133,200 | 23,581 |
| 2021-08-03 18:38 | 2021-08-02 | KIDS | ORTHOPEDIATRICS CORP | Throdahl Mark C | Director | SELL | $65.88 | 15,226 | $1,003,089 | 136,511 |
| 2021-08-04 01:39 | 2020-03-24 | TTOO | T2 Biosystems, Inc. | Jones Adrian M | Director | SELL | $0.62 | 41,128 | $25,656 | 4,196,456 |
| 2021-08-04 01:39 | 2020-03-24 | TTOO | T2 Biosystems, Inc. | Jones Adrian M | Director | BUY | $0.64 | 46,254 | $29,774 | 4,201,582 |
| 2021-08-03 15:11 | 2021-07-30 | ATRC | AtriCure, Inc. | Privitera Salvatore | Officer | SELL | $85.00 | 8,808 | $748,680 | 52,419 |
| 2021-08-04 01:14 | 2021-08-02 | GMED | GLOBUS MEDICAL INC | Pfeil Keith W | Officer | OPT+S | $83.24 | 833 | $69,339 | 0 |
| 2021-08-04 01:36 | 2021-08-02 | TNDM | TANDEM DIABETES CARE INC | ROBERTSON REBECCA B | Director | SELL | $107.51 | 1,500 | $161,264 | 392 |
| 2021-08-03 01:08 | 2021-07-27 | BSX | BOSTON SCIENTIFIC CORP | Butcher Arthur C | Officer | SELL | $45.00 | 9,673 | $435,287 | 25,749 |
| 2021-08-03 04:30 | 2021-08-02 | RMD | RESMED INC | Hollingshead James | Officer | SELL | $268.94 | 2,400 | $645,464 | 73,538 |
| 2021-08-02 21:57 | 2021-07-29 | CMXC | Stimcell Energetics Inc. | HARGREAVES BRADLEY S | Director, Officer, 10% owner | SELL | $0.26 | 10,000 | $2,550 | 5,577,901 |
| 2021-08-03 01:19 | 2021-07-30 | DXCM | DEXCOM INC | Leach Jacob Steven | Officer | SELL | $476.70 | 12,087 | $5,761,873 | 70,554 |
| 2021-07-30 15:41 | 2021-07-28 | ATRC | AtriCure, Inc. | Privitera Salvatore | Officer | SELL | $82.50 | 8,000 | $660,000 | 61,227 |
| 2021-07-31 00:58 | 2021-07-29 | TNDM | TANDEM DIABETES CARE INC | TWOMEY CHRISTOPHER J | Director | SELL | $105.00 | 8,000 | $840,000 | 11,523 |
| 2021-07-30 23:45 | 2021-07-28 | STIM | Neuronetics, Inc. | Furlong Stephen | Officer | SELL | $13.08 | 6,563 | $85,844 | 250,449 |
| 2021-07-29 20:04 | 2021-07-27 | CMXC | Stimcell Energetics Inc. | HARGREAVES BRADLEY S | Director, Officer, 10% owner | SELL | $0.26 | 10,000 | $2,550 | 5,587,901 |
| 2021-07-30 00:49 | 2021-07-27 | TNDM | TANDEM DIABETES CARE INC | Leal James | Officer | OPT+S | $102.25 | 1,666 | $170,349 | 3,596 |
| 2021-07-30 01:35 | 2021-07-27 | PSTV | PLUS THERAPEUTICS, INC. | Sims Andrew John Hugh MacIntyre | Officer | BUY | $1.98 | 4,230 | $8,357 | 4,230 |
| 2021-07-28 18:30 | 2021-07-26 | IRMD | IRADIMED CORP | Susi Roger E. | Director, Officer, 10% owner | SELL | $34.56 | 10,000 | $345,550 | 946,050 |
| 2021-07-28 03:28 | 2021-07-27 | BSX | BOSTON SCIENTIFIC CORP | Scanlon Meghan | Officer | OPT+S | $45.01 | 13,850 | $623,389 | 19,142 |
| 2021-07-28 03:28 | 2021-07-23 | BSX | BOSTON SCIENTIFIC CORP | Eddy Jodi Euerle | Officer | OPT+S | $44.06 | 12,076 | $532,072 | 20,777 |
| 2021-07-28 03:28 | 2021-07-27 | BSX | BOSTON SCIENTIFIC CORP | Butcher Arthur C | Officer | OPT+S | $4,500.00 | 9,673 | $43,528,502 | 25,749 |
| 2021-07-28 03:28 | 2021-07-27 | BSX | BOSTON SCIENTIFIC CORP | Mirviss Jeffrey B. | Officer | SELL | $45.22 | 6,748 | $305,145 | 133,118 |
| 2021-07-28 03:28 | 2021-07-27 | BSX | BOSTON SCIENTIFIC CORP | Fitzgerald Joseph Michael | Officer | OPT+S | $45.00 | 105,490 | $4,747,377 | 203,596 |
| 2021-07-28 01:04 | 2021-07-26 | DXCM | DEXCOM INC | Murphy Patrick Michael | Officer | SELL | $458.79 | 500 | $229,395 | 17,741 |
| 2021-07-28 01:03 | 2021-07-23 | DXCM | DEXCOM INC | Pacelli Steven Robert | Officer | SELL | $452.18 | 1,079 | $487,897 | 50,163 |
| 2021-07-26 19:56 | 2021-07-22 | CMXC | Stimcell Energetics Inc. | HARGREAVES BRADLEY S | Director, Officer, 10% owner | SELL | $0.25 | 10,351 | $2,548 | 5,597,901 |
| 2021-07-22 23:34 | 2021-07-20 | ATRC | AtriCure, Inc. | Privitera Salvatore | Officer | SELL | $80.00 | 2,000 | $160,000 | 69,227 |
| 2021-07-21 23:36 | 2021-07-19 | SGHT | Sight Sciences, Inc. | D1 Capital Partners L.P. | 10% owner | BUY | $24.00 | 700,000 | $16,800,000 | 5,852,036 |
| 2021-07-22 00:24 | 2021-07-19 | AFIB | Acutus Medical Inc. | Bonita David P | Director, 10% owner | BUY | $14.00 | 1,071,428 | $14,999,992 | 1,677,361 |
| 2021-07-22 01:06 | 2021-07-19 | IRMD | IRADIMED CORP | Susi Roger E. | Director, Officer, 10% owner | SELL | $33.95 | 10,000 | $339,500 | 956,050 |
| 2021-07-22 00:30 | 2021-07-19 | AFIB | Acutus Medical Inc. | ORBIMED ADVISORS LLC | Director, 10% owner | BUY | $14.00 | 1,071,428 | $14,999,992 | 1,677,361 |
| 2021-07-22 00:14 | 2021-07-19 | AFIB | Acutus Medical Inc. | Flynn James E | Director, 10% owner | BUY | $14.00 | 1,071,428 | $14,999,992 | 3,438,589 |
| 2021-07-21 01:50 | 2021-07-16 | SIBN | SI-BONE, Inc. | Pisetsky Michael A | Officer | SELL | $29.10 | 354 | $10,303 | 78,682 |
| 2021-07-20 19:32 | 2021-07-12 | ATEC | Alphatec Holdings, Inc. | Lish Scott | Officer | SELL | $16.46 | 11,965 | $196,944 | 298,402 |
| 2021-07-20 14:59 | 2021-07-16 | ATRC | AtriCure, Inc. | Austin Tonya | Officer | SELL | $78.03 | 493 | $38,469 | 34,792 |
| 2021-07-20 23:20 | 2021-07-19 | GMED | GLOBUS MEDICAL INC | Pfeil Keith W | Officer | OPT+S | $78.25 | 834 | $65,261 | 0 |
| 2021-07-21 01:50 | 2021-07-16 | SIBN | SI-BONE, Inc. | RECUPERO ANTHONY J | Officer | SELL | $29.10 | 587 | $17,085 | 121,634 |
| 2021-07-21 01:49 | 2021-07-16 | SIBN | SI-BONE, Inc. | DUNN JEFFREY W | Director | SELL | $29.10 | 2,113 | $61,498 | 180,507 |
| 2021-07-19 18:58 | 2021-07-16 | ATAO | Premier Air Charter Holdings Inc. | Fourth Street Fund, LP | SELL | $0.09 | 3,000,000 | $270,000 | 247,593,050 | |
| 2021-07-19 23:23 | 2021-07-15 | BSX | BOSTON SCIENTIFIC CORP | Carruthers Wendy | Officer | SELL | $42.42 | 3,321 | $140,877 | 171,216 |
| 2021-07-20 00:51 | 2021-07-15 | DRIO | DarioHealth Corp. | Raphael Erez | Director, Officer, 10% owner | SELL | $17.63 | 1,300 | $22,913 | 943,299 |
| 2021-07-20 00:38 | 2021-07-16 | IRMD | IRADIMED CORP | Susi Roger E. | Director, Officer, 10% owner | SELL | $33.78 | 19,000 | $641,820 | 966,050 |
| 2021-07-20 00:32 | 2021-07-15 | STIM | Neuronetics, Inc. | Sullivan Keith J | Director, Officer | SELL | $13.46 | 50,986 | $686,180 | 630,553 |
| 2021-07-20 02:49 | 2021-07-15 | LUNG | Pulmonx Corp | Rose Geoffrey Beran | Officer | SELL | $38.73 | 7,000 | $271,080 | 173,885 |
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.