Insider trading

Period: 120 months Stock: ATEC Role: 10% owners × + 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.

51 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.

51 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.

51 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.

51 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.
51 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
51 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.

51 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
9 Dec 2025
Pritzker Jennifer N. 10% owner · indirect
Sold at will
$606.38K 28,834 at 21.03
0.3%
Not planned
9 Dec 2025
Squadron Capital Holdings LLC 10% owner · indirect
Sold at will
$606.38K 28,834 at 21.03
0.3%
Not planned
9 Dec 2025
Sold at will
$606.38K 28,834 at 21.03
0.3%
Not planned
8 Dec 2025
Pritzker Jennifer N. 10% owner · indirect
Sold at will
$4.69M 221,166 at 21.20
2.0%
Not planned
8 Dec 2025
Squadron Capital Holdings LLC 10% owner · indirect
Sold at will
$4.69M 221,166 at 21.20
2.0%
Not planned
8 Dec 2025
Sold at will
$4.69M 221,166 at 21.20
2.0%
Not planned
24 Nov 2025
Sold at will
$5.16M 250,000 at 20.62
2.2%
Not planned
24 Nov 2025
Squadron Capital Holdings LLC 10% owner · indirect
Sold at will
$5.16M 250,000 at 20.62
2.2%
Not planned
24 Nov 2025
Pritzker Jennifer N. 10% owner · indirect
Sold at will
$5.16M 250,000 at 20.62
2.2%
Not planned
12 Nov 2025
Sold at will
$5.20M 250,000 at 20.80
2.2%
Not planned
12 Nov 2025
Pritzker Jennifer N. 10% owner · indirect
Sold at will
$5.20M 250,000 at 20.80
2.2%
Not planned
12 Nov 2025
Squadron Capital Holdings LLC 10% owner · indirect
Sold at will
$5.20M 250,000 at 20.80
2.2%
Not planned
10 Aug 2023
Bought
$35.98K 2,400 at 14.99
4.3%
10 Aug 2023
Pritzker Jennifer N. 10% owner · indirect
Bought 2×
$29.90K 2,000 at 14.95
33.3%
+33% of stake
8 Aug 2023
Pritzker Jennifer N. 10% owner · indirect
Bought
$21.01K 1,350 at 15.56
12.8%
10 May 2023
Sold at will
$25.30M 1,700,000 at 14.88
13.3%
Not planned
10 May 2023
Segal Paul 10% owner
Sold at will
$2.49M 167,496 at 14.88
49.4%
Not planned
10 May 2023
Bought
$37.37K 2,400 at 15.57
4.5%
10 May 2023
Pritzker Jennifer N. 10% owner · indirect
Bought 2×
$31.42K 2,000 at 15.71
40.0%
+40% of stake
9 May 2023
Pritzker Jennifer N. 10% owner · indirect
Bought
$18.31K 1,200 at 15.26
12.8%
7 Mar 2023
Bought
$47.79K 3,000 at 15.93
6.0%
6 Mar 2023
Pritzker Jennifer N. 10% owner · indirect
Bought
$24.60K 1,550 at 15.87
19.8%
10 Aug 2022
Bought
$16.20K 2,000 at 8.10
4.1%
10 Aug 2022
Pritzker Jennifer N. 10% owner · indirect
Bought
$16.08K 2,000 at 8.04
50.0%
+50% of stake
9 Aug 2022
Pritzker Jennifer N. 10% owner · indirect
Bought
$16.49K 2,100 at 7.85
36.6%
+37% of stake
9 Aug 2022
Bought
$15.94K 2,000 at 7.97
4.3%
15 Jun 2022
Segal Paul 10% owner
Bought
$343.50K 50,000 at 6.87
17.3%
14 Jun 2022
Segal Paul 10% owner
Bought
$347.50K 50,000 at 6.95
20.9%
+21% of stake
10 Jun 2022
Segal Paul 10% owner
Bought
$1.42K 200 at 7.10
0.1%
9 Jun 2022
Segal Paul 10% owner
Bought
$510.71K 71,129 at 7.18
42.5%
+42% of stake
16 May 2022
Pritzker Jennifer N. 10% owner · indirect
Bought
$16.64K 2,000 at 8.32
53.6%
+54% of stake
13 May 2022
Bought
$31.84K 4,000 at 7.96
9.5%
11 Mar 2022
Pritzker Jennifer N. 10% owner · indirect
Bought
$11.70K 1,100 at 10.64
41.8%
+42% of stake
8 Mar 2022
Pritzker Jennifer N. 10% owner · indirect
Bought 2×
$22.91K 2,000 at 11.46
100%
+100% of stake
8 Mar 2022
Bought 2×
$22.84K 2,000 at 11.42
5.0%
10 Dec 2021
Pritzker Jennifer N. 10% owner · indirect
Bought 3×
$34.99K 3,000 at 11.66
opened
10 Dec 2021
Bought
$11.79K 1,000 at 11.79
2.6%
9 Dec 2021
Bought
$12.18K 1,000 at 12.18
2.6%
24 Nov 2021
Segal Paul 10% owner
Bought
$1.12M 100,000 at 11.17
148%
Largest buy in 3 yrs
23 Nov 2021
Segal Paul 10% owner
Bought
$681.03K 67,496 at 10.09
opened
First buy on file
27 Aug 2021
Pritzker Jennifer N. 10% owner · indirect
Bought 2×
$26.52K 2,000 at 13.26
opened
17 Aug 2021
Pritzker Jennifer N. 10% owner · indirect
Bought
$6.99K 554 at 12.62
51.4%
+51% of stake
13 Aug 2021
Pritzker Jennifer N. 10% owner · indirect
Bought
$13.99K 1,077 at 12.99
opened
11 Aug 2021
Bought
$13.13K 1,000 at 13.13
2.7%
9 Aug 2021
Pritzker Jennifer N. 10% owner · indirect
Bought
$44.07K 3,000 at 14.69
0.1%
9 Aug 2021
Bought
$14.68K 1,000 at 14.68
2.8%
10 May 2021
Bought
$57.52K 4,000 at 14.38
12.4%
Largest buy in 3 yrs
10 May 2021
Pritzker Jennifer N. 10% owner · indirect
Bought 3×
$43.50K 3,000 at 14.50
opened
10 Mar 2021
Bought 3×
$49.13K 3,000 at 16.38
10.3%
First buy on file
30 Nov 2016
Foster John 10% owner
Sold, plan not stated 2×
$70.15K 13,433 at 5.22
100%
Sold half or more
Showing 1–50 of 51. Page 1 of 2 Older →