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Buy/Sell Ratio
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Last 3 Months
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Medical - Diagnostics & Research Industry
Insider Buy/Sell Details for the Medical - Diagnostics & Research Industry — Last 3 Months
Extreme outlier transactions (>3σ) are excluded.
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Ratio
0.0:1
Daily Buy & Sell Volume
Log Scale
Transactions
(757)
All (757)
Buys (16)
Sells (741)
Company
Insider
Title
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Date (newest)
Total Value
% of Holdings
Company Name
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BillionToOne, Inc.
(BLLN)
Atay Oguzhan
— Director
Oct 28, 2026
Sale
Shares
2,667
Price
$118.00
Total Value
$314.71K
Shares Held After
146,501
% of Holdings
1.8%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
BillionToOne, Inc.
(BLLN)
Atay Oguzhan
— Director
Oct 28, 2026
Sale
Shares
8,333
Price
$118.00
Total Value
$983.29K
Shares Held After
0
% of Holdings
100.0%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
THERMO FISHER SCIENTIFIC INC.
(TMO)
Britt Lisa P.
— Sr. VP and Chief HR Officer
Oct 28, 2026
Sale
Shares
2,831
Price
$706.45
Total Value
$2.00M
Shares Held After
11,560
% of Holdings
19.7%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
CASTLE BIOSCIENCES INC
(CSTL)
Juvenal Tobin W
— Chief Commercial Officer
Oct 28, 2026
Sale
Shares
5,341
Price
$36.62
Total Value
$195.58K
Shares Held After
38,853
% of Holdings
12.1%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
CASTLE BIOSCIENCES INC
(CSTL)
Juvenal Tobin W
— Chief Commercial Officer
Oct 28, 2026
Sale
Shares
1,237
Price
$35.58
Total Value
$44.01K
Shares Held After
44,194
% of Holdings
2.7%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Natera, Inc.
(NTRA)
Brophy Michael Burkes
— CHIEF FINANCIAL OFFICER
Oct 28, 2026
Sale
Shares
1,198
Price
$426.34
Total Value
$510.76K
Shares Held After
49,658
% of Holdings
2.4%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Natera, Inc.
(NTRA)
RABINOWITZ DANIEL
— SEC. AND CHIEF LEGAL OFFICER
Oct 28, 2026
Sale
Shares
968
Price
$426.34
Total Value
$412.70K
Shares Held After
168,221
% of Holdings
0.6%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Natera, Inc.
(NTRA)
Fesko John
— PRESIDENT, CHIEF BUS. OFFICER
Oct 28, 2026
Sale
Shares
898
Price
$426.34
Total Value
$382.85K
Shares Held After
195,578
% of Holdings
0.5%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Natera, Inc.
(NTRA)
Chapman Steven Leonard
— Director
Oct 28, 2026
Sale
Shares
3,430
Price
$426.34
Total Value
$1.46M
Shares Held After
91,232
% of Holdings
3.6%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Natera, Inc.
(NTRA)
Sheena Jonathan
— Director
Oct 28, 2026
Sale
Shares
187
Price
$426.34
Total Value
$79.73K
Shares Held After
217,686
% of Holdings
0.1%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Natera, Inc.
(NTRA)
Moshkevich Solomon
— PRESIDENT, CLINICALDIAGNOSTICS
Oct 28, 2026
Sale
Shares
1,162
Price
$426.34
Total Value
$495.41K
Shares Held After
104,742
% of Holdings
1.1%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
DANAHER CORP /DE/
(DHR)
Bouda Christopher
— VP, Chief Accounting Officer
Oct 28, 2026
Sale
Shares
3,253
Price
$234.58
Total Value
$763.09K
Shares Held After
9,107
% of Holdings
26.3%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
DANAHER CORP /DE/
(DHR)
Bouda Christopher
— VP, Chief Accounting Officer
Oct 28, 2026
Sale
Shares
4,345
Price
$234.54
Total Value
$1.02M
Shares Held After
9,107
% of Holdings
32.3%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
DANAHER CORP /DE/
(DHR)
McGrew Matthew
— Executive Vice President
Oct 28, 2026
Sale
Shares
15,603
Price
$236.09
Total Value
$3.68M
Shares Held After
12,674
% of Holdings
55.2%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
DANAHER CORP /DE/
(DHR)
McGrew Matthew
— Executive Vice President
Oct 28, 2026
Sale
Shares
14,151
Price
$235.35
Total Value
$3.33M
Shares Held After
12,674
% of Holdings
52.8%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Natera, Inc.
(NTRA)
Rabinowitz Matthew
— Director
Oct 27, 2026
Sale
Shares
1,718
Price
$406.00
Total Value
$697.51K
Shares Held After
2,117,676
% of Holdings
0.1%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Natera, Inc.
(NTRA)
Brophy Michael Burkes
— CHIEF FINANCIAL OFFICER
Oct 27, 2026
Sale
Shares
781
Price
$406.00
Total Value
$317.09K
Shares Held After
50,856
% of Holdings
1.5%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Natera, Inc.
(NTRA)
RABINOWITZ DANIEL
— SEC. AND CHIEF LEGAL OFFICER
Oct 27, 2026
Sale
Shares
884
Price
$406.00
Total Value
$358.90K
Shares Held After
169,189
% of Holdings
0.5%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Natera, Inc.
(NTRA)
Fesko John
— PRESIDENT, CHIEF BUS. OFFICER
Oct 27, 2026
Sale
Shares
781
Price
$406.00
Total Value
$317.09K
Shares Held After
196,476
% of Holdings
0.4%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Natera, Inc.
(NTRA)
Chapman Steven Leonard
— Director
Oct 27, 2026
Sale
Shares
2,264
Price
$406.00
Total Value
$919.18K
Shares Held After
94,662
% of Holdings
2.3%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Natera, Inc.
(NTRA)
Sheena Jonathan
— Director
Oct 27, 2026
Sale
Shares
291
Price
$406.00
Total Value
$118.15K
Shares Held After
217,873
% of Holdings
0.1%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Natera, Inc.
(NTRA)
Moshkevich Solomon
— PRESIDENT, CLINICALDIAGNOSTICS
Oct 27, 2026
Sale
Shares
1,010
Price
$406.00
Total Value
$410.06K
Shares Held After
105,904
% of Holdings
0.9%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Medpace Holdings, Inc.
(MEDP)
BURWIG SUSAN E
— Exec. VP, Operations
Oct 27, 2026
Sale
Shares
3,940
Price
$677.00
Total Value
$2.67M
Shares Held After
54,012
% of Holdings
6.8%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
QUEST DIAGNOSTICS INC
(DGX)
PFEIFFER GARY M
— Director
Oct 26, 2026
Sale
Shares
1,203
Price
$243.00
Total Value
$292.33K
Shares Held After
29,802
% of Holdings
3.9%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Medpace Holdings, Inc.
(MEDP)
BURWIG SUSAN E
— Exec. VP, Operations
Oct 26, 2026
Sale
Shares
16,060
Price
$677.00
Total Value
$10.87M
Shares Held After
57,624
% of Holdings
21.8%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
CASTLE BIOSCIENCES INC
(CSTL)
Juvenal Tobin W
— Chief Commercial Officer
Oct 26, 2026
Sale
Shares
3,288
Price
$33.08
Total Value
$108.77K
Shares Held After
45,431
% of Holdings
6.7%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Twist Bioscience Corp
(TWST)
Finn Patrick John
— President and COO
Oct 23, 2026
Sale
Shares
2,245
Price
$134.59
Total Value
$302.15K
Shares Held After
182,843
% of Holdings
1.2%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
ICON PLC
(ICLR)
Lyons Emer
— Chief Accounting Officer
Oct 23, 2026
Sale
Shares
54
Price
$184.29
Total Value
$9.95K
Shares Held After
990
% of Holdings
5.2%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
ICON PLC
(ICLR)
Lyons Emer
— Chief Accounting Officer
Oct 23, 2026
Sale
Shares
52
Price
$183.42
Total Value
$9.54K
Shares Held After
1,044
% of Holdings
4.7%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
ICON PLC
(ICLR)
Lyons Emer
— Chief Accounting Officer
Oct 23, 2026
Sale
Shares
43
Price
$182.30
Total Value
$7.84K
Shares Held After
1,096
% of Holdings
3.8%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
ICON PLC
(ICLR)
Lyons Emer
— Chief Accounting Officer
Oct 23, 2026
Sale
Shares
81
Price
$181.39
Total Value
$14.69K
Shares Held After
1,139
% of Holdings
6.6%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
ICON PLC
(ICLR)
Lyons Emer
— Chief Accounting Officer
Oct 23, 2026
Sale
Shares
42
Price
$180.54
Total Value
$7.58K
Shares Held After
1,220
% of Holdings
3.3%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
CHARLES RIVER LABORATORIES INTERNATIONAL, INC.
(CRL)
FOSTER JAMES C
— Director
Oct 22, 2026
Sale
Shares
24,042
Price
$350.00
Total Value
$8.41M
Shares Held After
31,596
% of Holdings
43.2%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Natera, Inc.
(NTRA)
Sheena Jonathan
— Director
Oct 21, 2026
Sale
Shares
165
Price
$416.67
Total Value
$68.75K
Shares Held After
218,164
% of Holdings
0.1%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Natera, Inc.
(NTRA)
Sheena Jonathan
— Director
Oct 21, 2026
Sale
Shares
255
Price
$415.67
Total Value
$105.99K
Shares Held After
218,329
% of Holdings
0.1%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Natera, Inc.
(NTRA)
Sheena Jonathan
— Director
Oct 21, 2026
Sale
Shares
125
Price
$413.05
Total Value
$51.63K
Shares Held After
218,584
% of Holdings
0.1%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Natera, Inc.
(NTRA)
Sheena Jonathan
— Director
Oct 21, 2026
Sale
Shares
211
Price
$412.20
Total Value
$86.97K
Shares Held After
218,709
% of Holdings
0.1%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Natera, Inc.
(NTRA)
Sheena Jonathan
— Director
Oct 21, 2026
Sale
Shares
605
Price
$411.32
Total Value
$248.85K
Shares Held After
218,920
% of Holdings
0.3%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Natera, Inc.
(NTRA)
Sheena Jonathan
— Director
Oct 21, 2026
Sale
Shares
627
Price
$409.89
Total Value
$257.00K
Shares Held After
219,525
% of Holdings
0.3%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Natera, Inc.
(NTRA)
Sheena Jonathan
— Director
Oct 21, 2026
Sale
Shares
962
Price
$408.26
Total Value
$392.74K
Shares Held After
220,152
% of Holdings
0.4%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Natera, Inc.
(NTRA)
Sheena Jonathan
— Director
Oct 21, 2026
Sale
Shares
200
Price
$406.50
Total Value
$81.30K
Shares Held After
221,114
% of Holdings
0.1%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
CHARLES RIVER LABORATORIES INTERNATIONAL, INC.
(CRL)
Parisotto Shannon M
— CEVP, Disc&Safety Assessment
Oct 21, 2026
Sale
Shares
2,156
Price
$344.41
Total Value
$742.55K
Shares Held After
4,807
% of Holdings
31.0%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
CASTLE BIOSCIENCES INC
(CSTL)
MAETZOLD DEREK J
— Director
Oct 19, 2026
Sale
Shares
2,718
Price
$31.91
Total Value
$86.73K
Shares Held After
4,114
% of Holdings
39.8%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
CASTLE BIOSCIENCES INC
(CSTL)
MAETZOLD DEREK J
— Director
Oct 19, 2026
Sale
Shares
3,198
Price
$31.91
Total Value
$102.05K
Shares Held After
4,840
% of Holdings
39.8%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
CASTLE BIOSCIENCES INC
(CSTL)
MAETZOLD DEREK J
— Director
Oct 19, 2026
Sale
Shares
8,580
Price
$31.91
Total Value
$273.79K
Shares Held After
12,484
% of Holdings
40.7%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
EXAGEN INC.
(XGN)
Chernett Jorey
— 10% Owner
Oct 19, 2026
Purchase
Shares
14,000
Price
$7.46
Total Value
$104.44K
Shares Held After
2,618,540
% of Holdings
0.5%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Natera, Inc.
(NTRA)
Sheena Jonathan
— Director
Oct 16, 2026
Sale
Shares
98
Price
$409.34
Total Value
$40.12K
Shares Held After
8,250
% of Holdings
1.2%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Natera, Inc.
(NTRA)
Sheena Jonathan
— Director
Oct 16, 2026
Sale
Shares
80
Price
$406.06
Total Value
$32.48K
Shares Held After
8,348
% of Holdings
0.9%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Natera, Inc.
(NTRA)
Sheena Jonathan
— Director
Oct 16, 2026
Sale
Shares
90
Price
$403.70
Total Value
$36.33K
Shares Held After
8,428
% of Holdings
1.1%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Natera, Inc.
(NTRA)
Sheena Jonathan
— Director
Oct 16, 2026
Sale
Shares
60
Price
$401.62
Total Value
$24.10K
Shares Held After
8,518
% of Holdings
0.7%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Next →
757 transactions
Version: v26.10.12