Insider trading

Period: 120 months Stock: CDNA Minimum amount: $100K × + Add filter Clear all
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When

Period

How far back the list reaches. Filings arrive days after the trade, so the newest rows always lag a little.

146 decisions over 120 months
Who

Role

The position the person holds at the company, read from the title on the filing. A chief executive who is also a director counts as the chief executive.

146 decisions over 120 months
The trade

Type of trade

Purchases, sales, or cluster buys: companies where 3 or more insiders bought within 30 days. The number beside each is what that choice would give.

146 decisions over 120 months
The trade

Minimum amount

Hides rows under this value. The amount is the shares traded times the price on the filing.

146 decisions over 120 months Remove this filter
The trade

Plan

  • Discretionary: they chose to sell that week.
  • Scheduled: a 10b5-1 plan fixed the sale months in advance, so the timing says nothing about what they knew.
  • Not stated: filed before the SEC added the box in April 2023, which is most of the older half of this database.
146 decisions over 120 months
The trade

Share of their own holding

How much of what they already held the trade moved. Selling a tenth of a stake is not the same act as selling all of it.

At least
146 decisions over 120 months
Ownership

What the chief executive holds

The value of the chief executive’s stock measured against base salary. The salary comes from the company’s own proxy. Companies with no figure are in neither direction.

146 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
5 Aug 2026
Sold at will
$925.70K 20,000 at 46.29
13.0%
Not planned
5 Aug 2026
Novack Jeffrey Adam Secretary and General Counsel
Sold on a plan 2×
$124.35K 2,688 at 46.26
2.5%
Planned (10b5-1)
4 Aug 2026
Goldberg Michael Director
Sold at will
$2.10M 44,700 at 47.06
42.0%
Not planned
4 Aug 2026
Sold on a plan
$750.97K 16,000 at 46.94
27.1%
Planned (10b5-1)
16 Jul 2026
Hanna John Walter JR President and CEO
Sold on a plan 2×
$4.46M 118,000 at 37.79
15.3%
Planned (10b5-1)
16 Jul 2026
Valantine Hannah Director
Sold on a plan 2×
$1.04M 28,779 at 36.15
44.0%
Planned (10b5-1)
29 Jun 2026
Hanna John Walter JR President and CEO
Sold on a plan
$1.17M 39,900 at 29.24
5.7%
Planned (10b5-1)
15 Jun 2026
Hanna John Walter JR President and CEO
Sold on a plan
$424.88K 17,683 at 24.03
2.7%
Planned (10b5-1)
15 Jun 2026
Valantine Hannah Director
Sold on a plan
$279.73K 12,103 at 23.11
24.8%
Planned (10b5-1)
11 Jun 2026
Hanna John Walter JR President and CEO
Sold on a plan
$528.44K 21,998 at 24.02
3.3%
Planned (10b5-1)
4 Jun 2026
Hanna John Walter JR President and CEO
Sold on a plan
$116.04K 4,835 at 24.00
0.7%
Planned (10b5-1)
15 May 2026
TORRES ARTHUR A Director
Sold at will
$128.98K 6,484 at 19.89
14.4%
Not planned
16 Apr 2026
Hanna John Walter JR President and CEO
Sold on a plan
$217.16K 10,282 at 21.12
1.5%
Planned (10b5-1)
22 Jan 2026
Hanna John Walter JR President and CEO
Sold on a plan
$408.02K 19,280 at 21.16
3.1%
Planned (10b5-1)
15 Jan 2026
Hanna John Walter JR President and CEO
Sold on a plan
$213.80K 10,156 at 21.05
1.6%
Planned (10b5-1)
4 Dec 2025
Novack Jeffrey Adam Secretary and General Counsel
Sold at will 2×
$139.80K 7,293 at 19.17
6.9%
Not planned
7 Jul 2025
Maag Peter Director
Sold at will
$185.83K 10,000 at 18.58
3.1%
Not planned
18 Jun 2025
Valantine Hannah Director
Sold on a plan
$202.57K 10,570 at 19.16
21.3%
Planned (10b5-1)
17 Jun 2025
Maag Peter Director
Sold on a plan
$192.42K 10,000 at 19.24
3.0%
Planned (10b5-1)
11 Jun 2025
Sold at will
$385.92K 19,391 at 19.90
26.4%
Not planned
28 May 2025
Sold at will
$523.41K 30,000 at 17.45
35.7%
Not planned
12 May 2025
Sold at will
$465.02K 29,136 at 15.96
44.0%
Not planned
6 May 2025
Sold at will
$235.93K 16,700 at 14.13
31.1%
Not planned
30 Apr 2025
Maag Peter Director
Sold on a plan
$228.80K 13,281 at 17.23
4.0%
Planned (10b5-1)
10 Mar 2025
Sold at will
$367.10K 20,000 at 18.36
16.3%
Not planned
26 Nov 2024
Maag Peter Director
Sold on a plan
$125.00K 5,000 at 25.00
1.5%
Planned (10b5-1)
18 Nov 2024
Novack Jeffrey Adam Secretary and General Counsel
Sold on a plan 3×
$120.48K 5,534 at 21.77
4.7%
Planned (10b5-1)
21 Aug 2024
Johnson Alexander L See Remarks
Sold at will
$702.33K 21,557 at 32.58
7.0%
Not planned
20 Aug 2024
Johnson Alexander L See Remarks
Sold at will
$1.31M 39,466 at 33.17
12.2%
Not planned
20 Aug 2024
Maag Peter Director
Sold at will 3×
$1.17M 35,552 at 33.04
9.7%
Not planned
19 Aug 2024
Johnson Alexander L See Remarks
Sold at will 3×
$1.15M 34,231 at 33.55
10.7%
Not planned
28 Jun 2023
Seeto Reginald See Remarks
Sold at will
$125.02K 14,268 at 8.76
2.8%
Not planned
10 Feb 2023
Seeto Reginald See Remarks
Sold, plan not stated
$131.39K 8,488 at 15.48
1.5%
9 Feb 2023
Seeto Reginald See Remarks
Sold, plan not stated
$178.93K 11,094 at 16.13
2.0%
11 Aug 2022
Maag Peter Director
Sold, plan not stated 2×
$493.14K 20,000 at 24.66
6.3%
11 May 2022
Colon Grace Director
Sold, plan not stated
$119.17K 5,179 at 23.01
67.3%
Sold half or more
5 Apr 2022
Maag Peter Director
Sold, plan not stated 2×
$386.39K 10,000 at 38.64
3.1%
21 Mar 2022
Seeto Reginald See Remarks
Sold, plan not stated
$116.77K 2,888 at 40.43
1.5%
7 Mar 2022
Maag Peter Director
Sold, plan not stated 2×
$328.06K 10,000 at 32.81
3.1%
1 Mar 2022
Seeto Reginald See Remarks
Sold, plan not stated
$121.75K 3,153 at 38.62
1.6%
28 Feb 2022
Sold, plan not stated
$977.67K 25,000 at 39.11
39.8%
9 Feb 2022
Seeto Reginald See Remarks
Sold, plan not stated
$114.76K 2,550 at 45.00
1.3%
7 Feb 2022
Maag Peter Director
Sold, plan not stated 2×
$420.67K 10,000 at 42.07
3.1%
4 Feb 2022
Seeto Reginald See Remarks
Sold, plan not stated
$201.24K 4,988 at 40.34
2.5%
2 Feb 2022
Seeto Reginald See Remarks
Sold, plan not stated
$131.26K 3,182 at 41.25
2.4%
19 Jan 2022
Seeto Reginald See Remarks
Sold, plan not stated
$125.63K 3,137 at 40.05
2.3%
5 Jan 2022
Maag Peter Director
Sold, plan not stated 2×
$444.47K 10,000 at 44.45
2.8%
6 Dec 2021
Maag Peter Director
Sold, plan not stated 3×
$416.19K 10,000 at 41.62
2.8%
24 Nov 2021
Dhingra Ankur Chief Financial Officer · indirect
Bought
$211.69K 5,000 at 42.34
opened
First buy on file
5 Nov 2021
Maag Peter Director
Sold, plan not stated
$494.00K 10,000 at 49.40
2.8%
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