Industry - Medical Laboratories

  1. All Sectors
  2. Services
  3. Health Services
Latest data: 10/28/2026 10:01:44 PM
1 Month
Buy/Sell Ratio 0.00
0%
100%
Buy Sell
-- ($12.90) M
0 Insiders 14 Insiders
0 Transactions 22 Transactions
9/28/2026 to 10/28/2026
3 Month
Buy/Sell Ratio 0.01
1%
99%
Buy Sell
$1.25 M ($116.54) M
8 Insiders 51 Insiders
10 Transactions 101 Transactions
7/28/2026 to 10/28/2026
6 Month
Buy/Sell Ratio 0.04
3%
97%
Buy Sell
$10.79 M ($263.75) M
15 Insiders 77 Insiders
26 Transactions 206 Transactions
4/28/2026 to 10/28/2026
12 Month
Buy/Sell Ratio 0.04
3%
97%
Buy Sell
$17.05 M ($449.34) M
22 Insiders 103 Insiders
35 Transactions 434 Transactions
10/28/2025 to 10/28/2026

Monthly Buy and Sell Value

Monthly Buy/Sell Ratio

Most Insider Buying

12 months
Name Value Transactions
Burning Rock Biotech Ltd
$11,648,315 8
AMERICAN SHARED HOSPITAL SERVICES
$1,337,147 1
MDxHealth SA
$1,000,000 1
Caris Life Sciences, Inc.
$990,080 1
Caris Life Sciences, Inc.
$501,426 1
Billiontoone, Inc.
$414,000 1
Lumexa Imaging Holdings, Inc.
$253,750 1
Lumexa Imaging Holdings, Inc.
$223,113 1
Billiontoone, Inc.
$150,000 1
YD Bio Ltd
$128,525 3

Most Insider Selling

12 months
Name Value Transactions
Natera, Inc.
($83,861,957) 14
Natera, Inc.
($39,901,012) 16
Guardant Health, Inc.
($39,688,811) 4
Natera, Inc.
($34,893,028) 2
Natera, Inc.
($23,685,249) 37
Guardant Health, Inc.
($22,032,189) 2
Natera, Inc.
($21,480,095) 22
Natera, Inc.
($16,874,887) 12
Natera, Inc.
($15,143,977) 2
GRAIL, Inc.
($12,265,121) 5

Most Unique Insiders Buying (>25K)

12 months
Name Unique insiders Total Trades
Billiontoone, Inc. 4 4
Caris Life Sciences, Inc. 3 3
Lumexa Imaging Holdings, Inc. 2 2
Burning Rock Biotech Ltd 1 8
YD Bio Ltd 1 2
Aclarion, Inc. 1 1
MDxHealth SA 1 1
AMERICAN SHARED HOSPITAL SERVICES 1 1

Most Unique Insiders Selling (>25K)

12 months
Name Unique insiders Total Trades
Guardant Health, Inc. 14 31
Veracyte, Inc. 11 31
Natera, Inc. 10 134
LABCORP HOLDINGS INC. 9 14
Quest Diagnostics Inc 8 16
Caredx, Inc. 7 17
Radnet, Inc. 5 9
Castle Biosciences Inc 4 47
GRAIL, Inc. 4 23
Personalis, Inc. 4 5

Companies with activity

1 Month 6 Month 12 Month
Name Ratio Buy $ Sell $ Ratio Buy $ Sell $ Ratio Buy $ Sell $
GRAIL, Inc. 0.00 $0 ($7,347,059) 0.00 $0 ($8,917,485) 0.00 $0 ($32,124,902)
Natera, Inc. 0.00 $0 ($3,665,745) 0.00 $0 ($157,445,555) 0.00 $0 ($251,476,824)
Castle Biosciences Inc 0.00 $0 ($914,071) 0.00 $0 ($4,340,415) 0.00 $0 ($11,491,593)
Billiontoone, Inc. 0.00 $0 ($297,995) 0.00 $0 ($6,691,751) 0.10 $678,000 ($6,691,751)
Quest Diagnostics Inc 0.00 $0 ($292,329) 0.00 $0 ($5,037,217) 0.00 $0 ($11,518,051)
Exagen Inc. 0.00 $0 ($269,791) 0.00 $0 ($418,572) 0.00 $0 ($522,380)
Veracyte, Inc. 0.00 $0 ($81,457) 0.00 $0 ($3,459,342) 0.00 $0 ($10,243,532)
Sera Prognostics, Inc. 0.00 $0 ($16,289) 0.00 $0 ($170,179) 0.00 $0 ($557,526)
Guardant Health, Inc. 0.00 $0 ($11,032) 0.00 $0 ($57,774,684) 0.00 $0 ($82,242,364)
Caredx, Inc. -- $0 $0 0.00 $0 ($5,523,868) 0.00 $0 ($6,639,864)
Personalis, Inc. -- $0 $0 0.00 $0 ($266,916) 0.00 $0 ($533,128)
LABCORP HOLDINGS INC. -- $0 $0 0.00 $0 ($4,436,693) 0.00 $0 ($11,621,259)
Fulgent Genetics, Inc. -- $0 $0 0.00 $0 ($223,475) 0.00 $0 ($677,576)
Radnet, Inc. -- $0 $0 0.00 $0 ($2,984,383) 0.00 $0 ($12,283,780)
Celcuity Inc. -- $0 $0 0.00 $0 ($3,517,000) 0.00 $0 ($7,417,554)
Aclarion, Inc. -- $0 $0 -- $176,585 $0 -- $176,647 $0
Burning Rock Biotech Ltd -- $0 $0 -- $6,182,172 $0 -- $11,648,315 $0
MDxHealth SA -- $0 $0 -- $1,000,000 $0 -- $1,000,000 $0
AMERICAN SHARED HOSPITAL SERVICES -- $0 $0 -- $1,337,147 $0 -- $1,337,147 $0
Fortrea Holdings Inc. -- $0 $0 0.00 $0 ($2,306,478) 0.00 $0 ($2,306,478)
YD Bio Ltd -- $0 $0 -- $128,525 $0 -- $128,525 $0
Caris Life Sciences, Inc. -- $0 $0 6.25 $1,491,506 ($238,626) 6.71 $1,601,839 ($238,626)
Lumexa Imaging Holdings, Inc. -- $0 $0 -- $476,863 $0 -- $476,863 $0
Exact Sciences Corp -- $0 $0 -- $0 $0 0.00 $0 ($750,409)