Services-Medical Laboratories
Standard Industrial Classification: SIC 8071
Industry Insider Sentiment Analysis
The Services-Medical Laboratories sector (SIC 8071) 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2023-06-14 00:42 | 2023-06-09 | GH | Guardant Health, Inc. | Kalia Kumud | Officer | BUY | $32.71 | 2,981 | $97,498 | 5,193 |
| 2023-06-12 23:29 | 2023-06-09 | EXAS | EXACT SCIENCES CORP | Doyle James Edward | Director | SELL | $90.51 | 1,402 | $126,895 | 54,110 |
| 2023-06-12 23:17 | 2023-06-09 | EXAS | EXACT SCIENCES CORP | Zanotti Katherine S | Director | SELL | $90.51 | 3,027 | $273,974 | 64,629 |
| 2023-06-12 23:14 | 2023-06-08 | EXAS | EXACT SCIENCES CORP | Herriott James | Officer | SELL | $90.00 | 1,300 | $117,000 | 7,264 |
| 2023-06-10 04:05 | 2023-06-07 | NTRA | Natera, Inc. | Sheena Jonathan | Director | SELL | $49.12 | 6,000 | $294,722 | 24,655 |
| 2023-06-08 23:56 | 2023-06-06 | RDNT | RadNet, Inc. | HAMES NORMAN R | Officer | SELL | $31.05 | 45,000 | $1,397,201 | 278,485 |
| 2023-06-07 00:25 | 2023-06-02 | RDNT | RadNet, Inc. | HAMES NORMAN R | Officer | OPT+S | $30.13 | 10,000 | $301,300 | 323,485 |
| 2023-06-07 00:11 | 2023-06-02 | FLGT | Fulgent Genetics, Inc. | Xie Jian | Officer | SELL | $40.30 | 1,433 | $57,744 | 425,794 |
| 2023-06-07 00:06 | 2023-06-02 | FLGT | Fulgent Genetics, Inc. | Gao Hanlin | Officer | SELL | $40.30 | 1,000 | $40,296 | 914,391 |
| 2023-06-06 23:48 | 2023-06-05 | CSTL | CASTLE BIOSCIENCES INC | Goldberg Ellen | Director | BUY | $14.38 | 4,800 | $69,004 | 9,065 |
| 2023-06-06 23:07 | 2023-06-05 | SERA | SERA PROGNOSTICS, INC. | Harrison Robert Gardner | Officer | SELL | $3.23 | 5,000 | $16,150 | 28,500 |
| 2023-06-07 00:09 | 2023-06-02 | FLGT | Fulgent Genetics, Inc. | Kim Paul | Officer | SELL | $40.30 | 1,403 | $56,535 | 228,890 |
| 2023-06-03 03:08 | 2023-06-02 | CDNA | CareDx, Inc. | Seeto Reginald | Director, Officer | SELL | $8.13 | 2,819 | $22,911 | 532,177 |
| 2023-06-02 00:06 | 2023-05-30 | VCYT | VERACYTE, INC. | Bhanji Muna | Director | SELL | $25.91 | 1,539 | $39,875 | 24,733 |
| 2023-06-01 22:00 | 2023-05-30 | BDSX | BIODESIX INC | SCHULER JACK W | Director, 10% owner | BUY | $1.36 | 26,641 | $36,157 | 20,589,853 |
| 2023-05-31 23:13 | 2023-05-26 | EXAS | EXACT SCIENCES CORP | Doyle James Edward | Director | SELL | $80.62 | 2,000 | $161,240 | 51,913 |
| 2023-05-30 22:03 | 2023-05-25 | BDSX | BIODESIX INC | SCHULER JACK W | Director, 10% owner | BUY | $1.36 | 52,508 | $71,280 | 20,563,212 |
| 2023-05-26 22:00 | 2023-05-24 | BDSX | BIODESIX INC | SCHULER JACK W | Director, 10% owner | BUY | $1.25 | 35,308 | $43,980 | 20,510,704 |
| 2023-05-25 23:29 | 2023-05-23 | RDNT | RadNet, Inc. | Gordon Christine Nayoma | Director | SELL | $28.34 | 4,884 | $138,413 | 13,385 |
| 2023-05-25 23:23 | 2023-05-23 | CELC | Celcuity Inc. | Buller Richard E | Director | SELL | $11.10 | 75 | $833 | 10,081 |
| 2023-05-25 22:00 | 2023-05-23 | BDSX | BIODESIX INC | SCHULER JACK W | Director, 10% owner | BUY | $1.15 | 56,782 | $65,066 | 20,475,396 |
| 2023-05-24 23:32 | 2023-05-22 | CELC | Celcuity Inc. | Furcht Leo | Director | BUY | $10.32 | 10,000 | $103,187 | 10,250 |
| 2023-05-24 22:47 | 2023-05-22 | BDSX | BIODESIX INC | SCHULER JACK W | Director, 10% owner | BUY | $1.11 | 29,425 | $32,529 | 20,418,614 |
| 2023-05-23 15:06 | 2023-05-19 | LH | LABCORP HOLDINGS INC. | Kirchgraber Paul R | Officer | OPT+S | $216.91 | 4,300 | $932,707 | 12,946 |
| 2023-05-23 23:12 | 2023-05-19 | CELC | Celcuity Inc. | Buller Richard E | Director | SELL | $10.04 | 350 | $3,512 | 10,156 |
| 2023-05-22 22:08 | 2023-05-18 | LH | LABCORP HOLDINGS INC. | Schroeder Mark S | Officer | OPT+S | $216.77 | 1,500 | $325,155 | 6,687 |
| 2023-05-19 23:23 | 2023-05-17 | FLGT | Fulgent Genetics, Inc. | Xie Jian | Officer | SELL | $35.46 | 1,320 | $46,810 | 427,227 |
| 2023-05-19 23:15 | 2023-05-17 | FLGT | Fulgent Genetics, Inc. | Gao Hanlin | Officer | SELL | $35.46 | 345 | $12,234 | 915,391 |
| 2023-05-20 00:39 | 2023-05-17 | PSNL | Personalis, Inc. | Moore Stephen Michael | Officer | SELL | $1.98 | 1,781 | $3,526 | 81,627 |
| 2023-05-20 00:37 | 2023-05-17 | PSNL | Personalis, Inc. | Chen Richard | Officer | SELL | $1.98 | 971 | $1,923 | 130,346 |
| 2023-05-20 00:42 | 2023-05-17 | PSNL | Personalis, Inc. | Tachibana Aaron | Officer | SELL | $1.98 | 1,389 | $2,750 | 200,894 |
| 2023-05-19 23:19 | 2023-05-17 | FLGT | Fulgent Genetics, Inc. | Kim Paul | Officer | SELL | $35.46 | 1,266 | $44,895 | 230,293 |
| 2023-05-18 00:07 | 2023-05-15 | CSTL | CASTLE BIOSCIENCES INC | MAETZOLD DEREK J | Director, Officer | SELL | $23.17 | 8,372 | $193,941 | 19,515 |
| 2023-05-13 04:05 | 2023-05-10 | NTRA | Natera, Inc. | Sheena Jonathan | Director | SELL | $54.06 | 5,000 | $270,319 | 519,746 |
| 2023-05-12 23:11 | 2023-05-10 | EXAS | EXACT SCIENCES CORP | Condella Sarah | Officer | SELL | $80.00 | 6,087 | $486,960 | 80,314 |
| 2023-05-12 23:09 | 2023-05-10 | EXAS | EXACT SCIENCES CORP | ORVILLE JACOB A | Officer | SELL | $80.00 | 5,000 | $400,000 | 6,423 |
| 2023-05-12 23:07 | 2023-05-10 | EXAS | EXACT SCIENCES CORP | Herriott James | Officer | SELL | $79.85 | 1,300 | $103,805 | 8,564 |
| 2023-05-11 03:16 | 2023-05-09 | BDSX | BIODESIX INC | Cowie Robin Harper | Officer | OPT+S | $1.57 | 3,485 | $5,468 | 117,365 |
| 2023-05-11 03:16 | 2023-05-09 | BDSX | BIODESIX INC | O'Kane Kieran | Officer | OPT+S | $1.57 | 1,697 | $2,663 | 36,757 |
| 2023-05-11 03:16 | 2023-05-09 | BDSX | BIODESIX INC | Siurek Ryan H | Officer | OPT+S | $1.57 | 2,020 | $3,170 | 40,268 |
| 2023-05-11 03:16 | 2023-05-09 | BDSX | BIODESIX INC | Hutton Scott | Director, Officer | OPT+S | $1.57 | 13,782 | $21,625 | 240,722 |
| 2023-05-11 03:16 | 2023-05-09 | BDSX | BIODESIX INC | Pestano Gary Anthony | Officer | OPT+S | $1.57 | 1,527 | $2,396 | 99,460 |
| 2023-05-08 23:21 | 2023-05-04 | CSTL | CASTLE BIOSCIENCES INC | MAETZOLD DEREK J | Director, Officer | SELL | $21.64 | 8,372 | $181,143 | 20,212 |
| 2023-05-08 23:26 | 2023-05-04 | CSTL | CASTLE BIOSCIENCES INC | BRADBURY DANIEL | Director | SELL | $21.63 | 25,000 | $540,745 | 77,805 |
| 2023-05-04 23:17 | 2023-05-02 | PSNL | Personalis, Inc. | Moore Stephen Michael | Officer | SELL | $2.29 | 5,102 | $11,684 | 83,408 |
| 2023-05-05 00:36 | 2023-05-02 | CDNA | CareDx, Inc. | Seeto Reginald | Director, Officer | SELL | $8.12 | 2,819 | $22,898 | 534,996 |
| 2023-05-03 23:04 | 2023-05-01 | EXAS | EXACT SCIENCES CORP | Condella Sarah | Officer | SELL | $63.78 | 1,000 | $63,780 | 86,401 |
| 2023-04-25 23:08 | 2023-04-21 | CELC | Celcuity Inc. | Buller Richard E | Director | SELL | $9.70 | 300 | $2,910 | 8,548 |
| 2023-04-25 04:35 | 2023-04-21 | NTRA | Natera, Inc. | Sheena Jonathan | Director | OPT+S | $54.33 | 333 | $18,091 | 524,746 |
| 2023-04-25 04:35 | 2023-04-21 | NTRA | Natera, Inc. | RABINOWITZ DANIEL | Officer | OPT+S | $54.58 | 796 | $43,442 | 177,143 |
Sector-Wide Insider Alpha
Analyzing insider movements across the Services-Medical Laboratories sector provides a macro-view of executive conviction. When multiple leaders in different companies within the same SIC code (8071) simultaneously buy shares, it often indicates an industry-wide undervaluation or a positive shift in market cycles.
SEC Filings in Services-Medical Laboratories
Every transaction in the Services-Medical Laboratories 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.