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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2021-08-17 03:12 | 2021-08-15 | SIBN | SI-BONE, Inc. | Pisetsky Michael A | Officer | SELL | $20.46 | 2,030 | $41,538 | 76,652 |
| 2021-08-16 23:45 | 2021-08-12 | TNDM | TANDEM DIABETES CARE INC | BLICKENSTAFF KIM D | Director | SELL | $106.83 | 63,990 | $6,835,757 | 252,390 |
| 2021-08-16 23:35 | 2021-08-12 | CVRX | CVRx, Inc. | Jain Mudit K. | Director | BUY | $19.72 | 625 | $12,328 | 1,625 |
| 2021-08-17 03:11 | 2021-08-16 | SIBN | SI-BONE, Inc. | FRANCIS LAURA | Director, Officer | OPT+S | $20.46 | 4,849 | $99,221 | 216,963 |
| 2021-08-17 03:13 | 2021-08-16 | SIBN | SI-BONE, Inc. | RECUPERO ANTHONY J | Officer | SELL | $20.46 | 3,384 | $69,244 | 118,250 |
| 2021-08-17 02:53 | 2021-08-16 | ARAY | Accuray Incorporated | WHITTERS JOSEPH E | Director | BUY | $3.64 | 17,500 | $63,700 | 314,210 |
| 2021-08-17 03:13 | 2021-08-16 | SIBN | SI-BONE, Inc. | DUNN JEFFREY W | Director | SELL | $20.46 | 6,884 | $140,861 | 166,644 |
| 2021-08-13 20:04 | 2021-08-06 | ATAO | Premier Air Charter Holdings Inc. | Lovallo Leonard | Director, Officer | SELL | $0.09 | 120,000 | $10,920 | 29,880,000 |
| 2021-08-13 21:41 | 2021-08-11 | PETV | PetVivo Holdings, Inc. | Martin James Rudolph | Director | BUY | $3.82 | 7,500 | $28,649 | 74,884 |
| 2021-08-13 19:30 | 2021-08-11 | ANIK | Anika Therapeutics Inc. | Levitz Michael L | Officer | BUY | $40.21 | 3,627 | $145,826 | 7,486 |
| 2021-08-12 18:51 | 2021-08-11 | MMM | 3M CO | Lavers Jeffrey R | Officer | OPT+S | $200.00 | 6,025 | $1,205,000 | 4,948 |
| 2021-08-13 03:03 | 2021-08-10 | PEN | Penumbra Inc | Rothman Lynn | Officer | OPT+S | $265.95 | 5,300 | $1,409,523 | 32,637 |
| 2021-08-13 03:02 | 2021-08-10 | PEN | Penumbra Inc | Pray James Robert | Officer | SELL | $260.79 | 5,000 | $1,303,932 | 418,431 |
| 2021-08-13 03:02 | 2021-08-11 | PEN | Penumbra Inc | Elsesser Adam | Director, Officer | OPT+S | $251.24 | 14,500 | $3,642,915 | 0 |
| 2021-08-13 00:07 | 2021-08-10 | TNDM | TANDEM DIABETES CARE INC | BLICKENSTAFF KIM D | Director | SELL | $107.21 | 3,210 | $344,134 | 316,380 |
| 2021-08-11 17:05 | 2021-08-10 | MMM | 3M CO | Banovetz John Patrick | Officer | OPT+S | $197.93 | 3,236 | $640,498 | 10,513 |
| 2021-08-12 01:11 | 2021-08-09 | ATEC | Alphatec Holdings, Inc. | Pritzker Jennifer N. | 10% owner | BUY | $14.38 | 5,000 | $71,880 | 38,200 |
| 2021-08-12 01:21 | 2021-08-10 | RMD | RESMED INC | Sandercock Brett | Officer | SELL | $278.05 | 2,500 | $695,125 | 85,002 |
| 2021-08-12 01:21 | 2021-08-09 | IRMD | IRADIMED CORP | HAWKINS JAMES B | Director | OPT+S | $35.51 | 17,500 | $621,471 | 17,268 |
| 2021-08-12 00:43 | 2021-08-09 | IRMD | IRADIMED CORP | Susi Roger E. | Director, Officer, 10% owner | SELL | $35.33 | 10,000 | $353,252 | 926,050 |
| 2021-08-12 00:17 | 2021-08-09 | ATRC | AtriCure, Inc. | Seith Douglas J | Officer | SELL | $80.79 | 7,065 | $570,781 | 86,155 |
| 2021-08-12 02:13 | 2021-08-09 | PEN | Penumbra Inc | Roberts Johanna | Officer | OPT+S | $263.14 | 2,500 | $657,850 | 51,324 |
| 2021-08-10 23:33 | 2021-08-06 | IART | INTEGRA LIFESCIENCES HOLDINGS CORP | McBreen Michael J. | Officer | SELL | $71.22 | 4,000 | $284,886 | 13,187 |
| 2021-08-10 17:02 | 2021-08-09 | MMM | 3M CO | Ashish Khandpur K | Officer | OPT+S | $196.86 | 6,505 | $1,280,582 | 20,350 |
| 2021-08-11 00:35 | 2021-08-10 | RDGL | VIVOS INC | Korenko Michael K | Director, Officer | BUY | $0.11 | 89,689 | $9,651 | 10,094,259 |
| 2021-08-11 00:35 | 2021-08-09 | RDGL | VIVOS INC | Korenko Michael K | Director, Officer | SELL | $0.10 | 89,689 | $8,969 | 0 |
| 2021-08-11 00:26 | 2021-08-09 | KIDS | ORTHOPEDIATRICS CORP | Berry Bernie B III | Director | OPT+S | $72.00 | 100 | $7,200 | 23,481 |
| 2021-08-10 23:44 | 2021-08-06 | TNDM | TANDEM DIABETES CARE INC | Sheridan John F | Director, Officer | OPT+S | $108.04 | 14,926 | $1,612,575 | 6,197 |
| 2021-08-10 15:06 | 2021-08-06 | ATRC | AtriCure, Inc. | Wirick Angela L | Officer | SELL | $80.21 | 5,939 | $476,367 | 77,941 |
| 2021-08-11 03:13 | 2021-08-06 | SYK | STRYKER CORP | STRYKER RONDA E | Director | SELL | $262.26 | 150,000 | $39,339,090 | 6,585,726 |
| 2021-08-10 23:27 | 2021-08-06 | TNDM | TANDEM DIABETES CARE INC | BLICKENSTAFF KIM D | Director | SELL | $107.70 | 82,800 | $8,917,610 | 319,590 |
| 2021-08-10 23:42 | 2021-08-09 | PODD | INSULET CORP | Lemoine David A | Director | SELL | $277.48 | 1,286 | $356,839 | 6,499 |
| 2021-08-09 20:23 | 2021-08-06 | BDX | BECTON DICKINSON & CO | Spoerel Thomas J | Officer | SELL | $242.30 | 266 | $64,452 | 1,285 |
| 2021-08-09 17:30 | 2021-08-06 | TCMD | TACTILE SYSTEMS TECHNOLOGY INC | REUVERS DANIEL L. | Director, Officer | SELL | $43.11 | 1,063 | $45,828 | 22,667 |
| 2021-08-06 03:04 | 2021-08-03 | ATEC | Alphatec Holdings, Inc. | Lish Scott | Officer | SELL | $14.24 | 10,000 | $142,400 | 288,402 |
| 2021-08-06 00:08 | 2021-08-04 | CERS | CERUS CORP | Swisher Daniel N JR | Director | OPT+S | $6.25 | 12,877 | $80,481 | 93,354 |
| 2021-08-04 23:36 | 2021-08-02 | BSX | BOSTON SCIENTIFIC CORP | Eddy Jodi Euerle | Officer | OPT+S | $45.77 | 727 | $33,275 | 20,050 |
| 2021-08-05 00:20 | 2021-08-02 | NVCR | NovoCure Ltd | Leonard Frank X | Officer | SELL | $149.39 | 1,041 | $155,520 | 89,158 |
| 2021-08-05 00:09 | 2021-08-03 | NVCR | NovoCure Ltd | Shah Pritesh | Officer | SELL | $149.43 | 1,654 | $247,157 | 76,232 |
| 2021-08-04 23:59 | 2021-08-03 | NVCR | NovoCure Ltd | Benaim Ely | Officer | SELL | $150.11 | 464 | $69,651 | 28,144 |
| 2021-08-04 17:43 | 2021-08-03 | MMM | 3M CO | Hammes Eric D. | Officer | OPT+S | $201.83 | 1,765 | $356,145 | 6,131 |
| 2021-08-04 23:37 | 2021-08-02 | BSX | BOSTON SCIENTIFIC CORP | Mahoney Michael F | Director, Officer | OPT+S | $45.74 | 201,043 | $9,194,782 | 2,081,822 |
| 2021-08-04 20:09 | 2021-08-02 | CMXC | Stimcell Energetics Inc. | HARGREAVES BRADLEY S | Director, Officer, 10% owner | SELL | $0.26 | 6,500 | $1,697 | 5,571,401 |
| 2021-08-04 17:48 | 2021-08-03 | KIDS | ORTHOPEDIATRICS CORP | Throdahl Mark C | Director | SELL | $65.40 | 4,774 | $312,220 | 131,737 |
| 2021-08-05 00:29 | 2021-08-03 | IRMD | IRADIMED CORP | Susi Roger E. | Director, Officer, 10% owner | SELL | $33.87 | 10,000 | $338,698 | 936,050 |
| 2021-08-05 00:23 | 2021-08-03 | IRMD | IRADIMED CORP | ALLEN MONTY K | Director | OPT+S | $34.08 | 4,597 | $156,666 | 16,778 |
| 2021-08-04 20:26 | 2021-08-03 | RMD | RESMED INC | PENDARVIS DAVID | Officer | SELL | $269.38 | 1,487 | $400,568 | 123,413 |
| 2021-08-05 00:01 | 2021-08-02 | NVCR | NovoCure Ltd | DOYLE WILLIAM F | Director, Officer | SELL | $149.38 | 995 | $148,631 | 554,398 |
| 2021-08-05 03:36 | 2021-08-03 | DXCM | DEXCOM INC | Balo Andrew K | Officer | SELL | $515.87 | 2,757 | $1,422,247 | 10,652 |
| 2021-08-04 23:09 | 2021-08-02 | BAX | BAXTER INTERNATIONAL INC | Martin Sean | Officer | OPT+S | $77.26 | 19,800 | $1,529,748 | 42,177 |
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.