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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
(704)
All (704)
Buys (16)
Sells (688)
Company
Insider
Title
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Date (newest)
Total Value
% of Holdings
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NEOGEN CORP
(NEOG)
Nassif Mikheal
— Director
Oct 9, 2026
Purchase
Shares
505
Price
$11.95
Total Value
$6.03K
Shares Held After
1,579
% of Holdings
32.0%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
CHARLES RIVER LABORATORIES INTERNATIONAL, INC.
(CRL)
Parisotto Shannon M
— CEVP, Disc&Safety Assessment
Oct 5, 2026
Sale
Shares
981
Price
$308.44
Total Value
$302.58K
Shares Held After
4,807
% of Holdings
16.9%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
BillionToOne, Inc.
(BLLN)
ten Bosch John Roderick
— SVP of Laboratory Operations
Oct 5, 2026
Sale
Shares
1,417
Price
$105.15
Total Value
$149.00K
Shares Held After
19,385
% of Holdings
6.8%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
BillionToOne, Inc.
(BLLN)
ten Bosch John Roderick
— SVP of Laboratory Operations
Oct 5, 2026
Sale
Shares
1,417
Price
$105.15
Total Value
$149.00K
Shares Held After
20,802
% of Holdings
6.4%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
BillionToOne, Inc.
(BLLN)
Tsao David
— Director
Oct 5, 2026
Sale
Shares
100
Price
$110.09
Total Value
$11.01K
Shares Held After
1,000
% of Holdings
9.1%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
BillionToOne, Inc.
(BLLN)
Tsao David
— Director
Oct 5, 2026
Sale
Shares
1,829
Price
$109.14
Total Value
$199.63K
Shares Held After
1,100
% of Holdings
62.4%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
BillionToOne, Inc.
(BLLN)
Tsao David
— Director
Oct 5, 2026
Sale
Shares
4,916
Price
$108.53
Total Value
$533.55K
Shares Held After
2,929
% of Holdings
62.7%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
BillionToOne, Inc.
(BLLN)
Tsao David
— Director
Oct 5, 2026
Sale
Shares
2,200
Price
$107.47
Total Value
$236.44K
Shares Held After
7,845
% of Holdings
21.9%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
BillionToOne, Inc.
(BLLN)
Tsao David
— Director
Oct 5, 2026
Sale
Shares
400
Price
$106.10
Total Value
$42.44K
Shares Held After
10,045
% of Holdings
3.8%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
BillionToOne, Inc.
(BLLN)
Tsao David
— Director
Oct 5, 2026
Sale
Shares
555
Price
$105.56
Total Value
$58.59K
Shares Held After
10,445
% of Holdings
5.0%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
BillionToOne, Inc.
(BLLN)
Tsao David
— Director
Oct 5, 2026
Sale
Shares
20
Price
$110.08
Total Value
$2.20K
Shares Held After
11,000
% of Holdings
0.2%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
BillionToOne, Inc.
(BLLN)
Tsao David
— Director
Oct 5, 2026
Sale
Shares
2,921
Price
$109.00
Total Value
$318.40K
Shares Held After
11,020
% of Holdings
21.0%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
BillionToOne, Inc.
(BLLN)
Tsao David
— Director
Oct 5, 2026
Sale
Shares
4,284
Price
$108.39
Total Value
$464.36K
Shares Held After
13,941
% of Holdings
23.5%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
BillionToOne, Inc.
(BLLN)
Tsao David
— Director
Oct 5, 2026
Sale
Shares
1,909
Price
$107.19
Total Value
$204.64K
Shares Held After
18,225
% of Holdings
9.5%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
BillionToOne, Inc.
(BLLN)
Tsao David
— Director
Oct 5, 2026
Sale
Shares
866
Price
$105.90
Total Value
$91.71K
Shares Held After
20,134
% of Holdings
4.1%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
GRAIL, Inc.
(GRAL)
Partridge Andrew John
— Chief Growth Officer
Oct 5, 2026
Sale
Shares
7,873
Price
$146.39
Total Value
$1.15M
Shares Held After
155,865
% of Holdings
4.8%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
GRAIL, Inc.
(GRAL)
Freidin Aaron
— Chief Financial Officer
Oct 5, 2026
Sale
Shares
23,619
Price
$146.39
Total Value
$3.46M
Shares Held After
225,364
% of Holdings
9.5%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
CASTLE BIOSCIENCES INC
(CSTL)
MAETZOLD DEREK J
— Director
Oct 5, 2026
Sale
Shares
2,718
Price
$35.57
Total Value
$96.67K
Shares Held After
6,832
% of Holdings
28.5%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
CASTLE BIOSCIENCES INC
(CSTL)
MAETZOLD DEREK J
— Director
Oct 5, 2026
Sale
Shares
3,198
Price
$35.57
Total Value
$113.74K
Shares Held After
8,038
% of Holdings
28.5%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
CASTLE BIOSCIENCES INC
(CSTL)
MAETZOLD DEREK J
— Director
Oct 5, 2026
Sale
Shares
8,580
Price
$35.57
Total Value
$305.16K
Shares Held After
21,064
% of Holdings
28.9%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Twist Bioscience Corp
(TWST)
Leproust Emily M.
— Director
Oct 5, 2026
Sale
Shares
45
Price
$207.46
Total Value
$9.34K
Shares Held After
562,760
% of Holdings
0.0%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Twist Bioscience Corp
(TWST)
Leproust Emily M.
— Director
Oct 5, 2026
Sale
Shares
146
Price
$206.84
Total Value
$30.20K
Shares Held After
562,805
% of Holdings
0.0%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Twist Bioscience Corp
(TWST)
Leproust Emily M.
— Director
Oct 5, 2026
Sale
Shares
297
Price
$205.78
Total Value
$61.12K
Shares Held After
562,951
% of Holdings
0.1%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Twist Bioscience Corp
(TWST)
Leproust Emily M.
— Director
Oct 5, 2026
Sale
Shares
290
Price
$204.80
Total Value
$59.39K
Shares Held After
563,248
% of Holdings
0.1%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Twist Bioscience Corp
(TWST)
Leproust Emily M.
— Director
Oct 5, 2026
Sale
Shares
432
Price
$203.61
Total Value
$87.96K
Shares Held After
563,538
% of Holdings
0.1%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Twist Bioscience Corp
(TWST)
Leproust Emily M.
— Director
Oct 5, 2026
Sale
Shares
1,017
Price
$202.32
Total Value
$205.76K
Shares Held After
563,970
% of Holdings
0.2%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Twist Bioscience Corp
(TWST)
Leproust Emily M.
— Director
Oct 5, 2026
Sale
Shares
481
Price
$201.26
Total Value
$96.80K
Shares Held After
564,987
% of Holdings
0.1%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Twist Bioscience Corp
(TWST)
Leproust Emily M.
— Director
Oct 5, 2026
Sale
Shares
1,840
Price
$200.44
Total Value
$368.81K
Shares Held After
565,468
% of Holdings
0.3%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Twist Bioscience Corp
(TWST)
Leproust Emily M.
— Director
Oct 2, 2026
Sale
Shares
45,736
Price
$188.88
Total Value
$8.64M
Shares Held After
567,308
% of Holdings
7.5%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Twist Bioscience Corp
(TWST)
Cho Dennis
— Senior Vice President, Chief Legal Officer&Corporate Secretary
Oct 2, 2026
Sale
Shares
9,514
Price
$188.88
Total Value
$1.80M
Shares Held After
63,789
% of Holdings
13.0%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Twist Bioscience Corp
(TWST)
WERNER ROBERT F.
— Chief Accounting Officer
Oct 2, 2026
Sale
Shares
1,482
Price
$188.88
Total Value
$279.93K
Shares Held After
42,917
% of Holdings
3.3%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Twist Bioscience Corp
(TWST)
Finn Patrick John
— President and COO
Oct 2, 2026
Sale
Shares
25,714
Price
$188.88
Total Value
$4.86M
Shares Held After
185,088
% of Holdings
12.2%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Twist Bioscience Corp
(TWST)
Green Paula
— SVP of Human Resources
Oct 2, 2026
Sale
Shares
10,088
Price
$188.88
Total Value
$1.91M
Shares Held After
106,632
% of Holdings
8.6%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Twist Bioscience Corp
(TWST)
Laponis Adam
— Chief Financial Officer
Oct 2, 2026
Sale
Shares
8,057
Price
$188.88
Total Value
$1.52M
Shares Held After
100,576
% of Holdings
7.4%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Twist Bioscience Corp
(TWST)
Leproust Emily M.
— Director
Oct 1, 2026
Sale
Shares
655
Price
$200.00
Total Value
$131.00K
Shares Held After
613,044
% of Holdings
0.1%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
CASTLE BIOSCIENCES INC
(CSTL)
Oelschlager Kristen M
— Chief Operating Officer
Oct 1, 2026
Sale
Shares
1,346
Price
$36.38
Total Value
$48.97K
Shares Held After
13,356
% of Holdings
9.2%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
CASTLE BIOSCIENCES INC
(CSTL)
Oelschlager Kristen M
— Chief Operating Officer
Oct 1, 2026
Sale
Shares
2,807
Price
$35.75
Total Value
$100.35K
Shares Held After
14,702
% of Holdings
16.0%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Natera, Inc.
(NTRA)
Moshkevich Solomon
— PRESIDENT, CLINICALDIAGNOSTICS
Oct 1, 2026
Sale
Shares
1,846
Price
$415.07
Total Value
$766.22K
Shares Held After
106,914
% of Holdings
1.7%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Natera, Inc.
(NTRA)
Moshkevich Solomon
— PRESIDENT, CLINICALDIAGNOSTICS
Oct 1, 2026
Sale
Shares
954
Price
$413.11
Total Value
$394.10K
Shares Held After
108,760
% of Holdings
0.9%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Natera, Inc.
(NTRA)
Moshkevich Solomon
— PRESIDENT, CLINICALDIAGNOSTICS
Oct 1, 2026
Sale
Shares
200
Price
$411.62
Total Value
$82.32K
Shares Held After
109,714
% of Holdings
0.2%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Natera, Inc.
(NTRA)
Chapman Steven Leonard
— Director
Oct 1, 2026
Sale
Shares
1,273
Price
$413.31
Total Value
$526.14K
Shares Held After
96,926
% of Holdings
1.3%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
REVVITY, INC.
(RVTY)
Gonzales Anita
— VP and CAO
Oct 1, 2026
Sale
Shares
84
Price
$155.48
Total Value
$13.06K
Shares Held After
7,117
% of Holdings
1.2%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
CHARLES RIVER LABORATORIES INTERNATIONAL, INC.
(CRL)
Coleman Glenn
— EVP&Chief Financial Officer
Sep 30, 2026
Purchase
Shares
10
Price
$297.43
Total Value
$2.97K
Shares Held After
27,762
% of Holdings
0.0%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Medpace Holdings, Inc.
(MEDP)
Troendle August J.
— Director
Sep 30, 2026
Sale
Shares
21,966
Price
$625.47
Total Value
$13.74M
Shares Held After
338,225
% of Holdings
6.1%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
CASTLE BIOSCIENCES INC
(CSTL)
Juvenal Tobin W
— Chief Commercial Officer
Sep 30, 2026
Sale
Shares
1,034
Price
$34.20
Total Value
$35.36K
Shares Held After
52,007
% of Holdings
1.9%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Medpace Holdings, Inc.
(MEDP)
Troendle August J.
— Director
Sep 29, 2026
Sale
Shares
26,701
Price
$621.02
Total Value
$16.58M
Shares Held After
360,191
% of Holdings
6.9%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
CASTLE BIOSCIENCES INC
(CSTL)
Juvenal Tobin W
— Chief Commercial Officer
Sep 29, 2026
Sale
Shares
5,543
Price
$35.50
Total Value
$196.77K
Shares Held After
53,041
% of Holdings
9.5%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
BillionToOne, Inc.
(BLLN)
Atay Oguzhan
— Director
Sep 28, 2026
Sale
Shares
2,666
Price
$120.64
Total Value
$321.63K
Shares Held After
154,502
% of Holdings
1.7%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
BillionToOne, Inc.
(BLLN)
Atay Oguzhan
— Director
Sep 28, 2026
Sale
Shares
8,333
Price
$120.64
Total Value
$1.01M
Shares Held After
0
% of Holdings
100.0%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Medpace Holdings, Inc.
(MEDP)
Troendle August J.
— Director
Sep 28, 2026
Sale
Shares
2,410
Price
$620.07
Total Value
$1.49M
Shares Held After
386,892
% of Holdings
0.6%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
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Showing 1–50 of 704 transactions (page 1 of 15)
Version: v26.10.8