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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: 9/14/2026 10:02:20 PM
1 Month
Buy/Sell Ratio 0.00
0%
100%
Buy
Sell
$95,620
($29.95) M
2 Insiders
21 Insiders
3 Transactions
28 Transactions
8/14/2026 to 9/14/2026
3 Month
Buy/Sell Ratio 0.05
4%
96%
Buy
Sell
$4.23 M
($93.11) M
8 Insiders
48 Insiders
13 Transactions
93 Transactions
6/14/2026 to 9/14/2026
6 Month
Buy/Sell Ratio 0.08
7%
93%
Buy
Sell
$12.66 M
($155.47) M
11 Insiders
67 Insiders
22 Transactions
171 Transactions
3/14/2026 to 9/14/2026
12 Month
Buy/Sell Ratio 0.04
4%
96%
Buy
Sell
$13.35 M
($314.86) M
17 Insiders
98 Insiders
29 Transactions
407 Transactions
9/14/2025 to 9/14/2026
Monthly Buy and Sell Value
Monthly Buy/Sell Ratio
Most Insider Buying
12 months
Name
Value
Transactions
Han Yusheng
Burning Rock Biotech Ltd
$11,648,315
8
Vacirca Jeff L
Caris Life Sciences, Inc.
$501,426
1
Johnson Nancy Joann
Billiontoone, Inc.
$414,000
1
Brodnax Brett
Lumexa Imaging Holdings, Inc.
$253,750
1
Rai Akshay
Billiontoone, Inc.
$150,000
1
Shen Ethan Phd
YD Bio Ltd
$79,630
2
Tsao David
Billiontoone, Inc.
$60,000
1
Bond Ryan
Aclarion, Inc.
$50,059
1
Ten Bosch John Roderick
Billiontoone, Inc.
$48,000
1
Ness Brent
Aclarion, Inc.
$32,152
3
Most Insider Selling
12 months
Name
Value
Transactions
Rabinowitz Matthew
Natera, Inc.
($55,359,555)
11
Chapman Steven Leonard
Natera, Inc.
($40,528,525)
17
Moshkevich Solomon
Natera, Inc.
($21,195,534)
25
Rabinowitz Daniel
Natera, Inc.
($17,257,277)
14
Rosenman Herm
Natera, Inc.
($15,143,977)
2
Sheena Jonathan
Natera, Inc.
($14,048,321)
24
Ragusa Robert P
GRAIL, Inc.
($12,763,744)
6
Ofman Joshua J.
GRAIL, Inc.
($12,715,610)
10
Eltoukhy Helmy
Guardant Health, Inc.
($9,402,220)
1
Fesko John
Natera, Inc.
($9,345,646)
16
Most Unique Insiders Buying (>25K)
12 months
Name
Unique insiders
Total Trades
Billiontoone, Inc.
4
4
Burning Rock Biotech Ltd
1
8
Aclarion, Inc.
1
1
YD Bio Ltd
1
1
Caris Life Sciences, Inc.
1
1
Lumexa Imaging Holdings, Inc.
1
1
Most Unique Insiders Selling (>25K)
12 months
Name
Unique insiders
Total Trades
Veracyte, Inc.
11
32
Guardant Health, Inc.
11
21
Natera, Inc.
9
127
LABCORP HOLDINGS INC.
9
14
Quest Diagnostics Inc
8
16
Caredx, Inc.
7
17
Radnet, Inc.
7
11
Exact Sciences Corp
5
7
Castle Biosciences Inc
4
39
GRAIL, Inc.
4
24
Companies with activity
1 Month
6 Month
12 Month
Name
Ratio
Buy $
Sell $
Ratio
Buy $
Sell $
Ratio
Buy $
Sell $
Natera, Inc.
0.00
$0
($22,861,215)
0.00
$0
($99,422,294)
0.00
$0
($180,173,257)
Quest Diagnostics Inc
0.00
$0
($2,427,200)
0.00
$0
($4,744,888)
0.00
$0
($11,496,039)
GRAIL, Inc.
0.00
$0
($1,096,677)
0.00
$0
($12,717,365)
0.00
$0
($31,776,055)
LABCORP HOLDINGS INC.
0.00
$0
($954,060)
0.00
$0
($5,096,841)
0.00
$0
($11,621,259)
Veracyte, Inc.
0.00
$0
($942,112)
0.00
$0
($3,012,538)
0.00
$0
($10,338,830)
Guardant Health, Inc.
0.00
$0
($632,193)
0.00
$0
($7,653,566)
0.00
$0
($25,056,983)
Castle Biosciences Inc
0.00
$0
($425,064)
0.00
$0
($3,322,364)
0.00
$0
($9,606,737)
Billiontoone, Inc.
0.00
$0
($279,817)
0.00
$0
($6,072,877)
0.11
$678,000
($6,072,877)
Exagen Inc.
0.00
$0
($148,782)
0.00
$0
($148,782)
0.00
$0
($628,187)
Fulgent Genetics, Inc.
0.00
$0
($117,132)
0.00
$0
($223,475)
0.00
$0
($677,576)
Sera Prognostics, Inc.
0.00
$0
($63,274)
0.00
$0
($153,891)
0.00
$0
($548,314)
YD Bio Ltd
--
$79,630
$0
--
$79,630
$0
--
$79,630
$0
Aclarion, Inc.
--
$15,990
$0
--
$176,585
$0
--
$176,647
$0
Caredx, Inc.
--
$0
$0
0.00
$0
($5,741,024)
0.00
$0
($6,639,864)
Radnet, Inc.
--
$0
$0
0.00
$0
($4,849,677)
0.00
$0
($15,912,090)
Burning Rock Biotech Ltd
--
$0
$0
--
$11,648,315
$0
--
$11,648,315
$0
Fortrea Holdings Inc.
--
$0
$0
0.00
$0
($2,306,478)
0.00
$0
($2,306,478)
Caris Life Sciences, Inc.
--
$0
$0
--
$501,426
$0
--
$510,966
$0
Lumexa Imaging Holdings, Inc.
--
$0
$0
--
$253,750
$0
--
$253,750
$0
Personalis, Inc.
--
$0
$0
--
$0
$0
0.00
$0
($266,212)
Exact Sciences Corp
--
$0
$0
--
$0
$0
0.00
$0
($1,740,409)