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Industry - Medical Laboratories
Officers
Directors
Officer & Directors
10 Percent
All
All Sectors
Services
Health Services
Include option trades
Include indirect trades
Latest data: 6/18/2026 10:01:40 PM
1 Month
Buy/Sell Ratio 0.00
0%
100%
Buy
Sell
$253,750
($103.68) M
1 Insiders
39 Insiders
1 Transactions
50 Transactions
5/18/2026 to 6/18/2026
3 Month
Buy/Sell Ratio 0.05
4%
96%
Buy
Sell
$6.50 M
($138.42) M
8 Insiders
53 Insiders
8 Transactions
89 Transactions
3/18/2026 to 6/18/2026
6 Month
Buy/Sell Ratio 0.03
3%
97%
Buy
Sell
$6.50 M
($208.49) M
8 Insiders
70 Insiders
8 Transactions
199 Transactions
12/18/2025 to 6/18/2026
12 Month
Buy/Sell Ratio 0.03
2%
98%
Buy
Sell
$11.19 M
($383.93) M
19 Insiders
100 Insiders
25 Transactions
444 Transactions
6/18/2025 to 6/18/2026
Monthly Buy and Sell Value
Monthly Buy/Sell Ratio
Most Insider Buying
12 months
Name
Value
Transactions
Han Yusheng
Burning Rock Biotech Ltd
$5,466,143
1
Schuler Jack W
Biodesix Inc
$2,611,422
4
Brille Brian J
Caris Life Sciences, Inc.
$630,000
1
Vacirca Jeff L
Caris Life Sciences, Inc.
$501,426
1
Johnson Nancy Joann
Billiontoone, Inc.
$414,000
1
Neupert Peter M
Fortrea Holdings Inc.
$407,150
2
Denton John Russel
Caris Life Sciences, Inc.
$258,293
2
Brodnax Brett
Lumexa Imaging Holdings, Inc.
$253,750
1
Cooper Henry Lee
Lumexa Imaging Holdings, Inc.
$223,113
1
Rai Akshay
Billiontoone, Inc.
$150,000
1
Most Insider Selling
12 months
Name
Value
Transactions
Rabinowitz Matthew
Natera, Inc.
($43,110,762)
12
Chapman Steven Leonard
Natera, Inc.
($41,042,948)
17
Eltoukhy Helmy
Guardant Health, Inc.
($39,868,184)
3
Botha Roelof
Natera, Inc.
($34,893,028)
2
Talasaz Amirali
Guardant Health, Inc.
($33,345,427)
3
Moshkevich Solomon
Natera, Inc.
($14,868,098)
25
Ofman Joshua J.
GRAIL, Inc.
($12,929,044)
11
Ragusa Robert P
GRAIL, Inc.
($12,763,744)
6
Sheena Jonathan
Natera, Inc.
($12,654,606)
33
Dalvey David
Celcuity Inc.
($12,235,924)
5
Most Unique Insiders Buying (>25K)
12 months
Name
Unique insiders
Total Trades
Billiontoone, Inc.
4
4
Caris Life Sciences, Inc.
3
4
Fortrea Holdings Inc.
2
3
Lumexa Imaging Holdings, Inc.
2
2
Biodesix Inc
1
3
Burning Rock Biotech Ltd
1
1
Most Unique Insiders Selling (>25K)
12 months
Name
Unique insiders
Total Trades
Guardant Health, Inc.
12
26
Natera, Inc.
11
131
Veracyte, Inc.
10
28
LABCORP HOLDINGS INC.
9
17
Radnet, Inc.
8
17
Quest Diagnostics Inc
7
16
Caredx, Inc.
5
15
Exact Sciences Corp
5
8
Castle Biosciences Inc
4
39
GRAIL, Inc.
4
26
Companies with activity
1 Month
6 Month
12 Month
Name
Ratio
Buy $
Sell $
Ratio
Buy $
Sell $
Ratio
Buy $
Sell $
Natera, Inc.
0.00
$0
($50,310,869)
0.00
$0
($105,161,039)
0.00
$0
($175,886,146)
Guardant Health, Inc.
0.00
$0
($42,538,780)
0.00
$0
($50,042,767)
0.00
$0
($90,130,532)
Radnet, Inc.
0.00
$0
($2,838,934)
0.00
$0
($4,704,228)
0.00
$0
($22,611,206)
Billiontoone, Inc.
0.00
$0
($2,475,703)
0.00
$0
($2,475,703)
0.27
$678,000
($2,475,703)
Quest Diagnostics Inc
0.00
$0
($1,941,400)
0.00
$0
($8,182,534)
0.00
$0
($9,413,426)
Veracyte, Inc.
0.00
$0
($1,474,980)
0.00
$0
($5,080,891)
0.00
$0
($9,432,616)
Caredx, Inc.
0.00
$0
($1,349,092)
0.00
$0
($2,553,817)
0.00
$0
($2,955,556)
LABCORP HOLDINGS INC.
0.00
$0
($201,084)
0.00
$0
($5,596,192)
0.00
$0
($13,068,530)
Castle Biosciences Inc
0.00
$0
($177,837)
0.00
$0
($2,673,508)
0.00
$0
($9,758,463)
Fulgent Genetics, Inc.
0.00
$0
($106,343)
0.00
$0
($106,343)
0.00
$0
($681,473)
GRAIL, Inc.
0.00
$0
($91,070)
0.00
$0
($15,575,732)
0.00
$0
($31,657,432)
Sera Prognostics, Inc.
0.00
$0
($90,617)
0.00
$0
($206,411)
0.00
$0
($764,942)
Fortrea Holdings Inc.
0.00
$0
($78,617)
0.00
$0
($105,497)
4.81
$507,168
($105,497)
Lumexa Imaging Holdings, Inc.
--
$253,750
$0
--
$476,863
$0
--
$476,863
$0
Exagen Inc.
--
$0
$0
0.00
$0
($103,807)
0.00
$0
($679,768)
Celcuity Inc.
--
$0
$0
0.00
$0
($5,917,538)
0.00
$0
($12,235,924)
Aclarion, Inc.
--
$0
$0
--
$50,915
$0
--
$50,977
$0
Burning Rock Biotech Ltd
--
$0
$0
--
$5,466,143
$0
--
$5,466,143
$0
Caris Life Sciences, Inc.
--
$0
$0
--
$501,426
$0
--
$1,399,259
$0
Personalis, Inc.
--
$0
$0
--
$0
$0
0.00
$0
($273,393)
Exact Sciences Corp
--
$0
$0
--
$0
$0
0.00
$0
($1,802,808)
Biodesix Inc
--
$0
$0
--
$0
$0
--
$2,611,422
$0