Insider Buy/Sell Details for the Medical - Diagnostics & Research Industry — March 2026
Ratio0.1:1
Daily Buy & Sell Volume
Transactions (194)
Natera, Inc. (NTRA)
Rabinowitz Matthew — Director
Shares
2,300
Price
$194.17
Total Value
$446.59K
Shares Held After
2,357,172
% of Holdings
0.1%
Natera, Inc. (NTRA)
Rabinowitz Matthew — Director
Shares
900
Price
$192.43
Total Value
$173.19K
Shares Held After
2,359,472
% of Holdings
0.0%
Natera, Inc. (NTRA)
Rabinowitz Matthew — Director
Shares
300
Price
$190.68
Total Value
$57.20K
Shares Held After
2,360,372
% of Holdings
0.0%
Natera, Inc. (NTRA)
Rabinowitz Matthew — Director
Shares
100
Price
$190.07
Total Value
$19.01K
Shares Held After
2,360,672
% of Holdings
0.0%
Natera, Inc. (NTRA)
Chapman Rowan E — Director
Shares
122
Price
$191.38
Total Value
$23.35K
Shares Held After
5,752
% of Holdings
2.1%
CASTLE BIOSCIENCES INC (CSTL)
MAETZOLD DEREK J — Director
Shares
13,204
Price
$25.45
Total Value
$336.00K
Shares Held After
58,354
% of Holdings
18.5%
Natera, Inc. (NTRA)
Rabinowitz Matthew — Director
Shares
1,100
Price
$191.22
Total Value
$210.34K
Shares Held After
2,310,772
% of Holdings
0.0%
Natera, Inc. (NTRA)
Rabinowitz Matthew — Director
Shares
13,883
Price
$190.46
Total Value
$2.64M
Shares Held After
2,311,872
% of Holdings
0.6%
Natera, Inc. (NTRA)
Rabinowitz Matthew — Director
Shares
21,504
Price
$189.50
Total Value
$4.08M
Shares Held After
2,325,755
% of Holdings
0.9%
Natera, Inc. (NTRA)
Rabinowitz Matthew — Director
Shares
21,476
Price
$188.54
Total Value
$4.05M
Shares Held After
2,347,259
% of Holdings
0.9%
Natera, Inc. (NTRA)
Rabinowitz Matthew — Director
Shares
17,037
Price
$187.63
Total Value
$3.20M
Shares Held After
2,368,735
% of Holdings
0.7%
Natera, Inc. (NTRA)
Rabinowitz Matthew — Director
Shares
100
Price
$195.32
Total Value
$19.53K
Shares Held After
2,310,772
% of Holdings
0.0%
Natera, Inc. (NTRA)
Rabinowitz Matthew — Director
Shares
4,082
Price
$194.57
Total Value
$794.22K
Shares Held After
2,310,872
% of Holdings
0.2%
Natera, Inc. (NTRA)
Rabinowitz Matthew — Director
Shares
7,043
Price
$193.58
Total Value
$1.36M
Shares Held After
2,314,954
% of Holdings
0.3%
Natera, Inc. (NTRA)
Rabinowitz Matthew — Director
Shares
8,579
Price
$192.79
Total Value
$1.65M
Shares Held After
2,321,997
% of Holdings
0.4%
Natera, Inc. (NTRA)
Rabinowitz Matthew — Director
Shares
9,896
Price
$191.55
Total Value
$1.90M
Shares Held After
2,330,576
% of Holdings
0.4%
Natera, Inc. (NTRA)
Rabinowitz Matthew — Director
Shares
22,063
Price
$190.53
Total Value
$4.20M
Shares Held After
2,340,472
% of Holdings
0.9%
Natera, Inc. (NTRA)
Rabinowitz Matthew — Director
Shares
2,886
Price
$189.64
Total Value
$547.31K
Shares Held After
2,362,535
% of Holdings
0.1%
Natera, Inc. (NTRA)
Rabinowitz Matthew — Director
Shares
6,451
Price
$188.52
Total Value
$1.22M
Shares Held After
2,365,421
% of Holdings
0.3%
Natera, Inc. (NTRA)
Rabinowitz Matthew — Director
Shares
5,809
Price
$187.52
Total Value
$1.09M
Shares Held After
2,371,872
% of Holdings
0.2%
Natera, Inc. (NTRA)
Rabinowitz Matthew — Director
Shares
8,091
Price
$186.75
Total Value
$1.51M
Shares Held After
2,377,681
% of Holdings
0.3%
CASTLE BIOSCIENCES INC (CSTL)
Juvenal Tobin W — Chief Commercial Officer
Shares
20,863
Price
$25.24
Total Value
$526.58K
Shares Held After
86,825
% of Holdings
19.4%
CASTLE BIOSCIENCES INC (CSTL)
MAETZOLD DEREK J — Director
Shares
23,179
Price
$25.28
Total Value
$585.94K
Shares Held After
71,558
% of Holdings
24.5%
CASTLE BIOSCIENCES INC (CSTL)
MAETZOLD DEREK J — Director
Shares
279
Price
$26.11
Total Value
$7.28K
Shares Held After
3,336
% of Holdings
7.7%
CASTLE BIOSCIENCES INC (CSTL)
MAETZOLD DEREK J — Director
Shares
279
Price
$26.11
Total Value
$7.28K
Shares Held After
3,336
% of Holdings
7.7%
CASTLE BIOSCIENCES INC (CSTL)
MAETZOLD DEREK J — Director
Shares
279
Price
$26.11
Total Value
$7.28K
Shares Held After
3,336
% of Holdings
7.7%
CASTLE BIOSCIENCES INC (CSTL)
MAETZOLD DEREK J — Director
Shares
282
Price
$26.11
Total Value
$7.36K
Shares Held After
3,336
% of Holdings
7.8%
CASTLE BIOSCIENCES INC (CSTL)
MAETZOLD DEREK J — Director
Shares
1,160
Price
$26.11
Total Value
$30.29K
Shares Held After
43,826
% of Holdings
2.6%
CASTLE BIOSCIENCES INC (CSTL)
MAETZOLD DEREK J — Director
Shares
1,357
Price
$26.11
Total Value
$35.43K
Shares Held After
51,566
% of Holdings
2.6%
CASTLE BIOSCIENCES INC (CSTL)
MAETZOLD DEREK J — Director
Shares
17,310
Price
$26.11
Total Value
$451.95K
Shares Held After
94,737
% of Holdings
15.4%
SERA PROGNOSTICS, INC. (SERA)
Boniface John J. — Chief Scientific Officer
Shares
1,517
Price
$2.04
Total Value
$3.09K
Shares Held After
145,842
% of Holdings
1.0%
SERA PROGNOSTICS, INC. (SERA)
Jackson Benjamin — General Counsel
Shares
1,027
Price
$2.04
Total Value
$2.10K
Shares Held After
114,720
% of Holdings
0.9%
SERA PROGNOSTICS, INC. (SERA)
Harrison Robert Gardner — Chief Information Officer
Shares
716
Price
$2.04
Total Value
$1.46K
Shares Held After
76,712
% of Holdings
0.9%
SERA PROGNOSTICS, INC. (SERA)
Aerts Austin — Chief Financial Officer
Shares
1,019
Price
$2.04
Total Value
$2.08K
Shares Held After
264,452
% of Holdings
0.4%
SERA PROGNOSTICS, INC. (SERA)
Lindgardt Zhenya — Director
Shares
2,973
Price
$2.04
Total Value
$6.06K
Shares Held After
738,314
% of Holdings
0.4%
SERA PROGNOSTICS, INC. (SERA)
Kearney Paul — Chief Data Officer
Shares
1,396
Price
$2.04
Total Value
$2.85K
Shares Held After
163,961
% of Holdings
0.8%
THERMO FISHER SCIENTIFIC INC. (TMO)
Shafer Michael D — Executive Vice President
Shares
1,607
Price
$499.40
Total Value
$802.54K
Shares Held After
20,950
% of Holdings
7.1%
SERA PROGNOSTICS, INC. (SERA)
Aerts Austin — Chief Financial Officer
Shares
6,069
Price
$1.90
Total Value
$11.53K
Shares Held After
265,471
% of Holdings
2.2%
SERA PROGNOSTICS, INC. (SERA)
Lindgardt Zhenya — Director
Shares
22,639
Price
$1.90
Total Value
$43.01K
Shares Held After
741,287
% of Holdings
3.0%
Natera, Inc. (NTRA)
Chapman Steven Leonard — Director
Shares
5,623
Price
$204.13
Total Value
$1.15M
Shares Held After
156,607
% of Holdings
3.5%
Natera, Inc. (NTRA)
Brophy Michael Burkes — CHIEF FINANCIAL OFFICER
Shares
785
Price
$204.13
Total Value
$160.24K
Shares Held After
63,354
% of Holdings
1.2%
Natera, Inc. (NTRA)
Fesko John — PRESIDENT, CHIEF BUS. OFFICER
Shares
707
Price
$204.13
Total Value
$144.32K
Shares Held After
189,199
% of Holdings
0.4%
Natera, Inc. (NTRA)
RABINOWITZ DANIEL — SEC. AND CHIEF LEGAL OFFICER
Shares
1,745
Price
$204.13
Total Value
$356.21K
Shares Held After
233,285
% of Holdings
0.7%
Natera, Inc. (NTRA)
Sheena Jonathan — Director
Shares
127
Price
$204.13
Total Value
$25.92K
Shares Held After
262,325
% of Holdings
0.0%
Natera, Inc. (NTRA)
Moshkevich Solomon — PRESIDENT, CLINICALDIAGNOSTICS
Shares
915
Price
$204.13
Total Value
$186.78K
Shares Held After
150,882
% of Holdings
0.6%
SERA PROGNOSTICS, INC. (SERA)
Boniface John J. — Chief Scientific Officer
Shares
3,038
Price
$1.96
Total Value
$5.95K
Shares Held After
147,359
% of Holdings
2.0%
SERA PROGNOSTICS, INC. (SERA)
Aerts Austin — Chief Financial Officer
Shares
674
Price
$1.96
Total Value
$1.32K
Shares Held After
271,540
% of Holdings
0.2%
SERA PROGNOSTICS, INC. (SERA)
Jackson Benjamin — General Counsel
Shares
3,119
Price
$1.96
Total Value
$6.11K
Shares Held After
115,747
% of Holdings
2.6%
SERA PROGNOSTICS, INC. (SERA)
Harrison Robert Gardner — Chief Information Officer
Shares
3,360
Price
$1.96
Total Value
$6.59K
Shares Held After
77,428
% of Holdings
4.2%
SERA PROGNOSTICS, INC. (SERA)
Kearney Paul — Chief Data Officer
Shares
2,026
Price
$1.96
Total Value
$3.97K
Shares Held After
165,357
% of Holdings
1.2%
Showing 51–100 of 194 transactions (page 2 of 4)