Insider trading

Period: 12 months Stock: ATEC Plan: Scheduled (10b5-1) × + 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.

17 decisions over 12 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.

17 decisions over 12 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.

17 decisions over 12 months
The trade

Minimum amount

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

17 decisions over 12 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.
17 decisions over 12 months Remove this filter
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
17 decisions over 12 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.

17 decisions over 12 months
Stock
Insider
Type ?
Why it stands out
5 Aug 2026
Marshall Tyson Eliot GENERAL COUNSEL & CORP. SEC.
Sold on a plan
$78.82K 8,168 at 9.65
1.3%
Planned (10b5-1)
11 Jun 2026
MCGINNIS KAREN K Director
Sold on a plan
$48.46K 6,050 at 8.01
6.0%
Planned (10b5-1)
13 Mar 2026
Koning John Todd CHIEF FINANCIAL OFFICER
Sold on a plan
$986.19K 79,789 at 12.36
11.7%
Planned (10b5-1)
11 Mar 2026
Sponsel David EVP, SALES
Sold on a plan
$2.05M 163,452 at 12.52
24.5%
Planned (10b5-1)
9 Mar 2026
Hunsaker Craig E EVP, PEOPLE & CULTURE
Sold on a plan
$1.03M 82,765 at 12.45
4.6%
Planned (10b5-1)
6 Mar 2026
Hunsaker Craig E EVP, PEOPLE & CULTURE
Sold on a plan
$410.62K 33,602 at 12.22
1.8%
Planned (10b5-1)
5 Mar 2026
Marshall Tyson Eliot GENERAL COUNSEL & CORP. SEC.
Sold on a plan
$1.11M 88,835 at 12.49
13.7%
Planned (10b5-1)
5 Feb 2026
Sponsel David EVP, SALES
Sold on a plan
$833.26K 60,425 at 13.79
14.7%
Planned (10b5-1)
3 Feb 2026
Hunsaker Craig E EVP, PEOPLE & CULTURE
Sold on a plan
$549.54K 37,358 at 14.71
3.1%
Planned (10b5-1)
5 Jan 2026
Sold on a plan
$2.10M 100,000 at 21.01
1.9%
Planned (10b5-1)
16 Dec 2025
Lish Scott CHIEF OPERATING OFFICER
Sold on a plan
$390.84K 19,900 at 19.64
3.0%
Planned (10b5-1)
10 Dec 2025
Sponsel David EVP, SALES
Sold on a plan
$438.79K 21,106 at 20.79
4.6%
Planned (10b5-1)
5 Dec 2025
Marshall Tyson Eliot GENERAL COUNSEL & CORP. SEC.
Sold on a plan 2×
$491.53K 22,889 at 21.47
6.2%
Planned (10b5-1)
1 Dec 2025
Sold on a plan
$2.21M 100,000 at 22.11
1.9%
Planned (10b5-1)
3 Nov 2025
Sold on a plan
$1.90M 100,000 at 18.96
1.8%
Planned (10b5-1)
31 Oct 2025
Hunsaker Craig E EVP, PEOPLE & CULTURE
Sold on a plan
$2.00M 100,000 at 19.95
7.2%
Planned (10b5-1)
24 Oct 2025
Sponsel David EVP, SALES
Sold on a plan
$1.13M 70,000 at 16.18
13.2%
Planned (10b5-1)
Showing 1–17 of 17.