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Buy/Sell Ratio
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Last 30 Days
›
Medical - Diagnostics & Research Industry
Insider Buy/Sell Details for the Medical - Diagnostics & Research Industry — Last 30 Days
Extreme outlier transactions (>3σ) are excluded.
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Ratio
0.0:1
Daily Buy & Sell Volume
Log Scale
Transactions
(133)
All (135)
Buys (2)
Sells (133)
Company
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Title
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Total Value
% of Holdings
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GRAIL, Inc.
(GRAL)
Ofman Joshua J.
— Director
Oct 15, 2026
Sale
Shares
2,114
Price
$138.79
Total Value
$293.39K
Shares Held After
342,271
% of Holdings
0.6%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
GRAIL, Inc.
(GRAL)
Ofman Joshua J.
— Director
Oct 15, 2026
Sale
Shares
6,034
Price
$137.63
Total Value
$830.47K
Shares Held After
344,385
% of Holdings
1.7%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
GRAIL, Inc.
(GRAL)
Ofman Joshua J.
— Director
Oct 15, 2026
Sale
Shares
7,052
Price
$136.83
Total Value
$964.95K
Shares Held After
350,419
% of Holdings
2.0%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
GRAIL, Inc.
(GRAL)
Ofman Joshua J.
— Director
Oct 15, 2026
Sale
Shares
3,400
Price
$135.44
Total Value
$460.51K
Shares Held After
357,471
% of Holdings
0.9%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
GRAIL, Inc.
(GRAL)
Ofman Joshua J.
— Director
Oct 15, 2026
Sale
Shares
1,000
Price
$134.38
Total Value
$134.38K
Shares Held After
360,871
% of Holdings
0.3%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
GRAIL, Inc.
(GRAL)
Ofman Joshua J.
— Director
Oct 15, 2026
Sale
Shares
400
Price
$133.12
Total Value
$53.25K
Shares Held After
361,871
% of Holdings
0.1%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
BillionToOne, Inc.
(BLLN)
Atay Oguzhan
— Director
Oct 14, 2026
Sale
Shares
2,667
Price
$98.00
Total Value
$261.37K
Shares Held After
149,168
% of Holdings
1.8%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
BillionToOne, Inc.
(BLLN)
Atay Oguzhan
— Director
Oct 14, 2026
Sale
Shares
100
Price
$99.00
Total Value
$9.90K
Shares Held After
0
% of Holdings
100.0%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
BillionToOne, Inc.
(BLLN)
Atay Oguzhan
— Director
Oct 14, 2026
Sale
Shares
3,083
Price
$98.32
Total Value
$303.12K
Shares Held After
100
% of Holdings
96.9%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Guardant Health, Inc.
(GH)
Azar Alex M II
— Director
Oct 14, 2026
Sale
Shares
69
Price
$159.89
Total Value
$11.03K
Shares Held After
893
% of Holdings
7.2%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
CIRCLE8 GROUP INC
(CIRC)
Franke Guus Paul Wilhelm
— Director
Oct 13, 2026
Sale
Shares
179,457
Price
$0.38
Total Value
$68.19K
Shares Held After
11,387,928
% of Holdings
1.6%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
SERA PROGNOSTICS, INC.
(SERA)
Inglis Tiffany Eul Davis
— Chief Medical Officer
Oct 12, 2026
Sale
Shares
8,024
Price
$2.03
Total Value
$16.29K
Shares Held After
83,565
% of Holdings
8.8%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
CASTLE BIOSCIENCES INC
(CSTL)
Juvenal Tobin W
— Chief Commercial Officer
Oct 12, 2026
Sale
Shares
3,288
Price
$33.64
Total Value
$110.61K
Shares Held After
48,719
% of Holdings
6.3%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
BillionToOne, Inc.
(BLLN)
Atay Oguzhan
— Director
Oct 12, 2026
Sale
Shares
2,667
Price
$97.61
Total Value
$260.33K
Shares Held After
151,835
% of Holdings
1.7%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
BillionToOne, Inc.
(BLLN)
Atay Oguzhan
— Director
Oct 12, 2026
Sale
Shares
1,521
Price
$96.39
Total Value
$146.61K
Shares Held After
0
% of Holdings
100.0%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
BillionToOne, Inc.
(BLLN)
Atay Oguzhan
— Director
Oct 12, 2026
Sale
Shares
3,869
Price
$94.61
Total Value
$366.06K
Shares Held After
1,521
% of Holdings
71.8%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
BillionToOne, Inc.
(BLLN)
Atay Oguzhan
— Director
Oct 12, 2026
Sale
Shares
6,763
Price
$93.65
Total Value
$633.33K
Shares Held After
5,390
% of Holdings
55.6%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
BillionToOne, Inc.
(BLLN)
Atay Oguzhan
— Director
Oct 12, 2026
Sale
Shares
2,553
Price
$93.05
Total Value
$237.55K
Shares Held After
12,153
% of Holdings
17.4%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
BillionToOne, Inc.
(BLLN)
Atay Oguzhan
— Director
Oct 12, 2026
Sale
Shares
1,961
Price
$91.57
Total Value
$179.57K
Shares Held After
14,706
% of Holdings
11.8%
View Filing
📈 Chart on TradingView
💰 Financials on Finviz
Twist Bioscience Corp
(TWST)
Laponis Adam
— Chief Financial Officer
Oct 9, 2026
Sale
Shares
2,462
Price
$156.30
Total Value
$384.82K
Shares Held After
98,114
% of Holdings
2.4%
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
← Previous
133 transactions
Version: v26.10.12