Insider trading

Period: 120 months Stock: DYN Role: CEO × + Add filter Clear all
Views & alerts

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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.

18 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.

18 decisions over 120 months Remove this filter
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.

18 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.

18 decisions over 120 months
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.
18 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
18 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.

18 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
8 Sep 2026
Cox John CEO & President
Sold on a plan
$106.82K 5,658 at 18.88
1.6%
Planned (10b5-1)
13 Aug 2026
Cox John CEO & President
Sold on a plan
$131.03K 4,986 at 26.28
1.4%
Planned (10b5-1)
16 Jun 2026
Cox John CEO & President
Sold on a plan
$49.18K 2,683 at 18.33
0.7%
Planned (10b5-1)
13 May 2026
Cox John CEO & President
Sold on a plan
$60.79K 3,311 at 18.36
0.9%
Planned (10b5-1)
5 Mar 2026
Cox John CEO & President
Sold on a plan
$40.71K 2,732 at 14.90
0.7%
Planned (10b5-1)
5 Dec 2025
Cox John CEO & President
Sold on a plan
$55.16K 2,662 at 20.72
1.3%
Planned (10b5-1)
5 Sep 2025
Cox John CEO & President
Sold on a plan
$35.40K 2,640 at 13.41
1.3%
Planned (10b5-1)
14 Jul 2025
Cox John CEO & President
Bought
$911.00K 100,000 at 9.11
70.3%
+70% of stake
5 Jun 2025
Cox John CEO & President
Sold on a plan
$54.20K 4,060 at 13.35
2.8%
Planned (10b5-1)
5 Mar 2025
Cox John CEO & President
Sold on a plan
$48.04K 4,061 at 11.83
2.7%
Planned (10b5-1)
4 Sep 2024
Cox John CEO & President · indirect
Bought 8×
$1.06M 32,000 at 33.04
opened
First buy on file
11 Mar 2024
Brumm Joshua T CEO & President
Sold on a plan 4×
$1.70M 66,387 at 25.67
11.0%
Planned (10b5-1)
8 Mar 2024
Brumm Joshua T CEO & President
Sold on a plan 3×
$9.42M 363,343 at 25.93
39.6%
Planned (10b5-1)
7 Mar 2024
Brumm Joshua T CEO & President
Sold on a plan
$234.87K 9,086 at 25.85
1.6%
Planned (10b5-1)
1 Mar 2024
Brumm Joshua T CEO & President
Sold on a plan 3×
$2.74M 94,480 at 29.04
14.4%
Planned (10b5-1)
29 Feb 2024
Brumm Joshua T CEO & President
Sold on a plan
$151.80K 5,520 at 27.50
1.0%
Planned (10b5-1)
4 Jan 2024
Brumm Joshua T CEO & President
Sold on a plan 2×
$4.05M 218,536 at 18.51
27.2%
Planned (10b5-1)
3 Jan 2024
Brumm Joshua T CEO & President
Sold on a plan 3×
$986.96K 51,183 at 19.28
8.0%
Planned (10b5-1)
Showing 1–18 of 18.