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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2021-12-18 04:06 | 2021-12-16 | LUNG | Pulmonx Corp | French Glendon E. III | Director, Officer | SELL | $31.05 | 25,000 | $776,220 | 1,113,949 |
| 2021-12-18 00:22 | 2021-12-15 | DXCM | DEXCOM INC | SAYER KEVIN R | Director, Officer | SELL | $535.97 | 3,000 | $1,607,899 | 81,705 |
| 2021-12-17 17:41 | 2021-12-16 | BDX | BECTON DICKINSON & CO | Larson Betty D | Officer | OPT+S | $255.00 | 3,341 | $851,955 | 5,872 |
| 2021-12-17 00:37 | 2021-12-15 | BSX | BOSTON SCIENTIFIC CORP | Carruthers Wendy | Officer | SELL | $40.83 | 3,321 | $135,596 | 154,609 |
| 2021-12-17 00:58 | 2021-12-13 | SRTS | Sensus Healthcare, Inc. | Cohen Stephen Brad | Officer | SELL | $7.17 | 19,792 | $141,824 | 877,930 |
| 2021-12-17 00:33 | 2021-12-15 | ATEC | Alphatec Holdings, Inc. | Hochberg Jason | Director | BUY | $10.84 | 5,000 | $54,200 | 84,375 |
| 2021-12-17 00:07 | 2021-12-13 | IRMD | IRADIMED CORP | Susi Roger E. | Director, Officer, 10% owner | SELL | $44.17 | 10,000 | $441,687 | 846,050 |
| 2021-12-17 00:56 | 2021-12-13 | SRTS | Sensus Healthcare, Inc. | Sardano Joseph C | Director, Officer | SELL | $7.16 | 18,572 | $132,957 | 1,487,876 |
| 2021-12-17 02:22 | 2021-12-15 | LUNG | Pulmonx Corp | Rose Geoffrey Beran | Officer | SELL | $30.55 | 22,000 | $672,001 | 123,459 |
| 2021-12-17 01:48 | 2021-12-14 | LUNG | Pulmonx Corp | Sung Derrick | Officer | SELL | $31.71 | 6,000 | $190,255 | 225,420 |
| 2021-12-15 23:43 | 2021-12-14 | SRTS | Sensus Healthcare, Inc. | Cohen Stephen Brad | Officer | SELL | $7.22 | 14,889 | $107,558 | 882,833 |
| 2021-12-16 03:36 | 2021-12-13 | PEN | Penumbra Inc | Elsesser Adam | Director, Officer | OPT+S | $248.95 | 14,500 | $3,609,716 | 0 |
| 2021-12-16 01:01 | 2021-12-13 | UTRS | Minerva Surgical Inc. | Clapper David M | Director, Officer | BUY | $4.94 | 25,000 | $123,435 | 642,660 |
| 2021-12-15 23:42 | 2021-12-14 | SRTS | Sensus Healthcare, Inc. | Sardano Joseph C | Director, Officer | SELL | $7.22 | 13,969 | $100,824 | 1,492,479 |
| 2021-12-15 02:44 | 2021-12-10 | SYK | STRYKER CORP | Boehnlein Glenn S | Officer | SELL | $259.79 | 2,778 | $721,705 | 13,105 |
| 2021-12-15 01:50 | 2021-12-10 | TELA | TELA Bio, Inc. | EW HEALTHCARE PARTNERS FUND 2, L.P. | BUY | $12.35 | 11,387 | $140,624 | 1,885,950 | |
| 2021-12-14 23:48 | 2021-12-10 | RMD | RESMED INC | Sandercock Brett | Officer | OPT+S | $264.92 | 2,500 | $662,300 | 106,354 |
| 2021-12-14 16:32 | 2021-12-10 | ATRC | AtriCure, Inc. | Austin Tonya | Officer | SELL | $70.88 | 1,528 | $108,305 | 25,408 |
| 2021-12-15 00:15 | 2021-12-13 | DXCM | DEXCOM INC | Regan Barry J. | Officer | SELL | $563.93 | 1,214 | $684,611 | 11,457 |
| 2021-12-14 00:15 | 2021-12-10 | XAIR | Beyond Air, Inc. | Lisi Steven A. | Director, Officer | BUY | $8.53 | 40,000 | $341,200 | 1,171,487 |
| 2021-12-13 23:12 | 2021-12-09 | SRTS | Sensus Healthcare, Inc. | Cohen Stephen Brad | Officer | SELL | $7.80 | 32,863 | $256,318 | 897,722 |
| 2021-12-14 03:36 | 2021-12-09 | KIDS | ORTHOPEDIATRICS CORP | Pritzker Jennifer N. | 10% owner | BUY | $59.94 | 2,500 | $149,850 | 707 |
| 2021-12-14 03:38 | 2021-12-09 | ATEC | Alphatec Holdings, Inc. | Pritzker Jennifer N. | 10% owner | BUY | $11.79 | 5,000 | $58,960 | 2,631 |
| 2021-12-13 23:10 | 2021-12-09 | SRTS | Sensus Healthcare, Inc. | Sardano Joseph C | Director, Officer | SELL | $7.79 | 32,201 | $250,788 | 1,506,448 |
| 2021-12-14 03:36 | 2021-12-09 | ATEC | Alphatec Holdings, Inc. | TULLIS JAMES L L | Director | SELL | $11.68 | 75,000 | $876,353 | 470,747 |
| 2021-12-13 17:05 | 2021-12-10 | CTSO | Cytosorbents Corp | Chan Phillip P. | Officer | BUY | $5.25 | 5,000 | $26,250 | 753,443 |
| 2021-12-11 00:13 | 2021-12-08 | CRY | Artivion Inc. | Horton Amy | Officer | SELL | $18.57 | 2,500 | $46,422 | 86,782 |
| 2021-12-10 00:24 | 2021-12-07 | TNDM | TANDEM DIABETES CARE INC | Gasser Elizabeth Anne | Officer | OPT+S | $140.00 | 1,083 | $151,620 | 431 |
| 2021-12-10 05:40 | 2021-12-07 | IRMD | IRADIMED CORP | HAWKINS JAMES B | Director | OPT+S | $47.11 | 19,302 | $909,400 | 21,490 |
| 2021-12-10 00:15 | 2021-12-07 | INSP | Inspire Medical Systems, Inc. | NELSON MARILYN C | Director | SELL | $215.00 | 25,106 | $5,397,790 | 101,130 |
| 2021-12-09 16:09 | 2021-12-07 | BDX | BECTON DICKINSON & CO | Spoerel Thomas J | Officer | SELL | $250.00 | 233 | $58,250 | 1,079 |
| 2021-12-09 02:47 | 2021-12-06 | TELA | TELA Bio, Inc. | EW HEALTHCARE PARTNERS FUND 2, L.P. | BUY | $12.36 | 22,573 | $278,898 | 1,874,563 | |
| 2021-12-09 03:02 | 2021-12-08 | RDGL | VIVOS INC | Korenko Michael K | Director, Officer | BUY | $0.08 | 130,000 | $10,270 | 10,315,563 |
| 2021-12-09 00:19 | 2021-12-06 | IRMD | IRADIMED CORP | Susi Roger E. | Director, Officer, 10% owner | SELL | $44.37 | 10,000 | $443,706 | 856,050 |
| 2021-12-07 22:16 | 2021-12-06 | GBS | INTELLIGENT BIO SOLUTIONS INC. | Sakiris Spiro Kevin | Officer | BUY | $1.70 | 10,000 | $17,000 | 29,258 |
| 2021-12-08 02:07 | 2021-12-03 | INFU | InfuSystem Holdings, Inc | Lehman Gregg Owen | Director | OPT+S | $16.03 | 5,808 | $93,102 | 346 |
| 2021-12-07 02:07 | 2021-12-03 | VERO | Venus Concept Inc. | PORTARO ROSS | Officer | BUY | $1.35 | 30,000 | $40,500 | 30,000 |
| 2021-12-07 02:06 | 2021-12-02 | DCTH | DELCATH SYSTEMS, INC. | MICHEL GERARD J | Director, Officer | BUY | $8.61 | 23,200 | $199,752 | 59,050 |
| 2021-12-07 00:57 | 2021-12-03 | RMD | RESMED INC | PENDARVIS DAVID | Officer | SELL | $257.93 | 1,544 | $398,244 | 117,579 |
| 2021-12-07 03:16 | 2021-12-06 | DXCM | DEXCOM INC | Sylvain Jereme M | Officer | SELL | $517.59 | 600 | $310,554 | 12,292 |
| 2021-12-04 01:25 | 2021-11-30 | GBS | INTELLIGENT BIO SOLUTIONS INC. | Life Science Biosensor Diagnostics Pty Ltd | 10% owner | SELL | $1.87 | 250,000 | $467,500 | 2,957,832 |
| 2021-12-04 00:20 | 2021-12-02 | TELA | TELA Bio, Inc. | Cuca Roberto | Officer | BUY | $12.67 | 1,351 | $17,117 | 4,392 |
| 2021-12-04 00:15 | 2021-12-01 | XAIR | Beyond Air, Inc. | Avniel Amir | Director, Officer | SELL | $13.72 | 32,675 | $448,301 | 403,527 |
| 2021-12-04 03:53 | 2021-12-01 | PEN | Penumbra Inc | Roberts Johanna | Officer | OPT+S | $246.97 | 1,750 | $432,192 | 52,824 |
| 2021-12-04 00:20 | 2021-12-02 | ARAY | Accuray Incorporated | Chew Jesse | Officer | SELL | $4.59 | 6,130 | $28,150 | 268,041 |
| 2021-12-04 00:20 | 2021-12-02 | ARAY | Accuray Incorporated | Spine Patrick | Officer | SELL | $4.59 | 5,308 | $24,379 | 226,653 |
| 2021-12-04 00:20 | 2021-12-02 | ARAY | Accuray Incorporated | Winter Suzanne C | Officer | SELL | $4.59 | 6,748 | $30,992 | 647,105 |
| 2021-12-04 00:15 | 2021-12-02 | ARAY | Accuray Incorporated | Hoge Michael | Officer | SELL | $4.59 | 5,672 | $26,053 | 311,881 |
| 2021-12-04 03:11 | 2021-12-01 | LUNG | Pulmonx Corp | French Glendon E. III | Director, Officer | SELL | $32.73 | 1,421 | $46,509 | 1,138,949 |
| 2021-12-04 02:41 | 2021-12-01 | LUNG | Pulmonx Corp | Lehman David Aaron | Officer | SELL | $32.73 | 383 | $12,536 | 16,834 |
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.