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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2021-12-04 02:39 | 2021-12-01 | LUNG | Pulmonx Corp | Rose Geoffrey Beran | Officer | SELL | $32.73 | 355 | $11,619 | 145,459 |
| 2021-12-04 02:34 | 2021-12-01 | LUNG | Pulmonx Corp | Sung Derrick | Officer | SELL | $32.73 | 383 | $12,536 | 231,420 |
| 2021-12-04 03:08 | 2021-05-20 | LUNG | Pulmonx Corp | French Glendon E. III | Director, Officer | OPT+S | $41.95 | 25,000 | $1,048,780 | 1,234,884 |
| 2021-12-04 02:46 | 2021-04-15 | LUNG | Pulmonx Corp | French Glendon E. III | Director, Officer | OPT+S | $43.75 | 25,000 | $1,093,858 | 1,249,884 |
| 2021-12-03 02:30 | 2021-12-01 | NSPR | InspireMD, Inc. | Stuka Paul | Director | BUY | $3.51 | 12,037 | $42,288 | 73,534 |
| 2021-12-03 03:10 | 2021-11-30 | INFU | InfuSystem Holdings, Inc | Lehman Gregg Owen | Director | OPT+S | $16.43 | 4,192 | $68,881 | 346 |
| 2021-12-03 00:57 | 2021-11-30 | TFX | TELEFLEX INC | Krakauer Andrew A | Director | BUY | $307.23 | 1,000 | $307,232 | 3,534 |
| 2021-12-03 01:53 | 2021-12-01 | DXCM | DEXCOM INC | FOLETTA MARK G | Director | SELL | $562.83 | 500 | $281,416 | 12,597 |
| 2021-12-02 00:15 | 2021-11-29 | IONM | Assure Holdings Corp. | Farlinger John | Director, Officer | BUY | $6.19 | 16,200 | $100,278 | 150,232 |
| 2021-12-02 00:02 | 2021-11-29 | IONM | Assure Holdings Corp. | Parsons Preston T | Director, Officer, 10% owner | BUY | $6.19 | 8,100 | $50,139 | 1,183,569 |
| 2021-12-02 04:01 | 2021-11-29 | GBS | INTELLIGENT BIO SOLUTIONS INC. | Life Science Biosensor Diagnostics Pty Ltd | 10% owner | SELL | $1.69 | 100,000 | $168,810 | 3,207,832 |
| 2021-12-02 00:14 | 2021-11-29 | CRY | Artivion Inc. | Davis John E | Officer | BUY | $17.33 | 600 | $10,398 | 72,499 |
| 2021-12-02 00:23 | 2021-11-29 | IONM | Assure Holdings Corp. | Price John C | Officer | BUY | $6.19 | 13,700 | $84,803 | 13,700 |
| 2021-12-02 01:00 | 2021-11-23 | ATAO | Premier Air Charter Holdings Inc. | Lovallo Leonard | Director, Officer | SELL | $0.06 | 150,000 | $8,460 | 29,430,000 |
| 2021-12-02 03:16 | 2021-12-01 | RMD | RESMED INC | Hollingshead James | Officer | SELL | $256.84 | 2,400 | $616,416 | 76,721 |
| 2021-12-02 04:25 | 2021-11-29 | TELA | TELA Bio, Inc. | Cuca Roberto | Officer | BUY | $12.58 | 3,041 | $38,245 | 3,041 |
| 2021-12-02 05:27 | 2021-11-29 | SGHT | Sight Sciences, Inc. | Encrantz Staffan | Director | BUY | $20.89 | 525,000 | $10,968,300 | 4,022,118 |
| 2021-12-02 03:59 | 2021-11-29 | TNDM | TANDEM DIABETES CARE INC | Leal James | Officer | OPT+S | $130.96 | 1,905 | $249,478 | 4,008 |
| 2021-12-02 03:31 | 2021-12-01 | TNDM | TANDEM DIABETES CARE INC | BERGER DAVID B | Officer | OPT+S | $128.44 | 1,000 | $128,440 | 4,451 |
| 2021-12-02 01:29 | 2021-12-01 | VERO | Venus Concept Inc. | Serafino Domenic | Director, Officer | BUY | $1.32 | 37,500 | $49,583 | 868,758 |
| 2021-12-01 00:40 | 2021-11-29 | CRY | Artivion Inc. | SEMEDO ANTHONY B. | Director | BUY | $17.36 | 15,000 | $260,400 | 19,992 |
| 2021-12-01 01:53 | 2021-11-29 | NSPR | InspireMD, Inc. | Stuka Paul | Director | BUY | $3.55 | 21,549 | $76,499 | 61,497 |
| 2021-11-30 20:19 | 2021-11-26 | ATEC | Alphatec Holdings, Inc. | Bakst Evan | Director | BUY | $10.57 | 10,000 | $105,700 | 786,361 |
| 2021-12-01 02:45 | 2021-11-26 | IRMD | IRADIMED CORP | HAWKINS JAMES B | Director | OPT+S | $45.60 | 17,765 | $810,155 | 17,268 |
| 2021-12-01 02:43 | 2021-11-29 | IRMD | IRADIMED CORP | Susi Roger E. | Director, Officer, 10% owner | SELL | $44.96 | 10,000 | $449,570 | 866,050 |
| 2021-12-01 02:14 | 2021-11-26 | BSTG | Harvard Apparatus Regenerative Technology, Inc. | GREEN DAVID | Director, Officer | BUY | $3.45 | 72,464 | $250,001 | 95,516 |
| 2021-11-30 03:33 | 2021-11-24 | GBS | INTELLIGENT BIO SOLUTIONS INC. | Life Science Biosensor Diagnostics Pty Ltd | 10% owner | SELL | $1.64 | 100,000 | $163,790 | 3,307,832 |
| 2021-11-30 00:48 | 2021-11-26 | NVCR | NovoCure Ltd | Danziger Asaf | Director, Officer | BUY | $102.44 | 4,974 | $509,539 | 13,276 |
| 2021-11-29 22:28 | 2021-11-24 | CMXC | Stimcell Energetics Inc. | HARGREAVES BRADLEY S | Director, Officer, 10% owner | SELL | $0.17 | 20,000 | $3,426 | 5,511,401 |
| 2021-11-30 00:05 | 2021-11-26 | NSPR | InspireMD, Inc. | Stuka Paul | Director | BUY | $3.55 | 1,200 | $4,260 | 39,948 |
| 2021-11-30 02:48 | 2021-11-24 | INFU | InfuSystem Holdings, Inc | Sheehan Jeannine | Officer | OPT+S | $18.01 | 7,461 | $134,373 | 10,146 |
| 2021-11-30 02:36 | 2021-11-03 | DXCM | DEXCOM INC | Collins Richard Alexander | Director | SELL | $647.05 | 1,500 | $970,575 | 7,204 |
| 2021-11-27 01:16 | 2021-11-23 | XAIR | Beyond Air, Inc. | Carey Robert | Director | BUY | $12.35 | 5,000 | $61,750 | 508,418 |
| 2021-11-27 00:05 | 2021-11-24 | NSPR | InspireMD, Inc. | Stuka Paul | Director | BUY | $3.55 | 18,328 | $65,064 | 38,748 |
| 2021-11-27 05:08 | 2021-11-23 | ATEC | Alphatec Holdings, Inc. | Segal Paul | 10% owner | BUY | $10.73 | 167,496 | $1,798,036 | 167,496 |
| 2021-11-27 05:52 | 2021-11-23 | ATEC | Alphatec Holdings, Inc. | Segal Paul | 10% owner | BUY | $10.98 | 67,496 | $741,106 | 67,496 |
| 2021-11-27 01:19 | 2021-11-24 | XAIR | Beyond Air, Inc. | BENTSUR RON | Director | SELL | $13.53 | 37,464 | $507,071 | 182,436 |
| 2021-11-27 01:22 | 2021-11-23 | UTMD | UTAH MEDICAL PRODUCTS INC | HOYER ERNST G | Director | SELL | $126.39 | 5,000 | $631,929 | 5,000 |
| 2021-11-27 02:11 | 2021-11-23 | CTSO | Cytosorbents Corp | BLOCH KATHLEEN P. | Officer | BUY | $4.98 | 4,000 | $19,920 | 25,000 |
| 2021-11-25 00:03 | 2021-11-22 | RMED | Catheter Precision, Inc. | Jackson Andrew C. | Officer | SELL | $2.62 | 2,684 | $7,032 | 23,041 |
| 2021-11-25 04:48 | 2021-11-22 | TMCI | TREACE MEDICAL CONCEPTS, INC. | Treace John T. | Director, Officer, 10% owner | SELL | $17.86 | 165,000 | $2,946,488 | 5,587,580 |
| 2021-11-25 00:10 | 2021-11-22 | XAIR | Beyond Air, Inc. | Carey Robert | Director | BUY | $12.05 | 10,000 | $120,500 | 503,418 |
| 2021-11-24 23:22 | 2021-11-23 | ATEC | Alphatec Holdings, Inc. | Hochberg Jason | Director | BUY | $10.83 | 5,000 | $54,150 | 79,375 |
| 2021-11-25 00:02 | 2021-11-22 | RMED | Catheter Precision, Inc. | McGuire Jonathan Will | Director, Officer | SELL | $2.62 | 8,149 | $21,350 | 66,721 |
| 2021-11-25 01:42 | 2021-11-22 | INFU | InfuSystem Holdings, Inc | Sansone Christopher R. | Director | SELL | $17.73 | 80,000 | $1,418,400 | 228,118 |
| 2021-11-25 02:34 | 2021-11-23 | IRMD | IRADIMED CORP | HAWKINS JAMES B | Director | OPT+S | $42.71 | 43,492 | $1,857,526 | 17,268 |
| 2021-11-25 02:01 | 2021-11-23 | IRMD | IRADIMED CORP | Susi Roger E. | Director, Officer, 10% owner | SELL | $40.32 | 10,000 | $403,150 | 876,050 |
| 2021-11-25 01:57 | 2021-11-23 | IRMD | IRADIMED CORP | Scott Christopher K. | Officer | OPT+S | $40.98 | 26,715 | $1,094,693 | 28,595 |
| 2021-11-25 00:15 | 2021-11-22 | STIM | Neuronetics, Inc. | CASCELLA ROBERT | Director | BUY | $4.10 | 15,000 | $61,497 | 40,255 |
| 2021-11-25 04:49 | 2021-11-22 | TMCI | TREACE MEDICAL CONCEPTS, INC. | TREACE JAMES T | Director | SELL | $17.93 | 50,000 | $896,415 | 1,428,946 |
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.