Stock chart
Ticker: ATEC Exchange: NSM


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Purchase Sale Planned purchase Planned sale Net purchase Net sale Earnings
Earnings
 
Value bought

Past 90 days

 
Value sold

Past 90 days

 
Net insiders buying

Past 90 days

 
Trades (buy and sell)

Past 90 days

Abbreviations B: Buy, S: Sell, PP: Planned purchase, PS: Planned sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value
Number of shares Price Value Details
2025-03-12 2025-03-10 PS Planned sale

Lish Scott

CHIEF OPERATING OFFICER

Officer
27,994 -3.3%
9.72
USD 272,102
27,994 -3.3% 9.72 USD 272,102
2025-03-12 2025-03-10 PS Planned sale

Koning John Todd

CHIEF FINANCIAL OFFICER

Officer
165,121 -25.5%
9.72
USD 1,604,976
165,121 -25.5% 9.72 USD 1,604,976
2025-03-07 2025-03-07 PS Planned sale

Miles Patrick

CEO

Executive Director
12,691 -0.2%
10.64
USD 135,032
12,691 -0.2% 10.64 USD 135,032
2025-03-10 2025-03-06 PS Planned sale

Sponsel David

EVP, SALES

Officer
33,732 -4.8%
10.83
USD 365,318
33,732 -4.8% 10.83 USD 365,318
2025-03-04 2025-03-03 PS Planned sale

MCGINNIS KAREN K

Non-Executive Director
38,320 -40.0%
12.26
USD 469,803
38,320 -40.0% 12.26 USD 469,803
2025-02-28 2025-02-27 PS Planned sale

Lish Scott

CHIEF OPERATING OFFICER

Officer
23,183 -2.7%
12.03
USD 278,891
23,183 -2.7% 12.03 USD 278,891
2025-02-26 2025-02-26 PS Planned sale

Miles Patrick

CEO

Executive Director
32,393 -0.5%
10.89
USD 352,760
32,393 -0.5% 10.89 USD 352,760
2025-02-26 2025-02-25 PS Planned sale

Sponsel David

EVP, SALES

Officer
19,419 -2.7%
10.41
USD 202,152
19,419 -2.7% 10.41 USD 202,152
2025-02-26 2025-02-24 PS Planned sale

Sponsel David

EVP, SALES

Officer
12,946 -1.8%
10.73
USD 138,911
12,946 -1.8% 10.73 USD 138,911
2025-02-07 2025-02-06 PS Planned sale

Lish Scott

CHIEF OPERATING OFFICER

Officer
27,453 -3.1%
11.49
USD 315,435
27,453 -3.1% 11.49 USD 315,435
2025-02-07 2025-02-05 PS Planned sale

Miles Patrick

CEO

Executive Director
43,459 -0.7%
11.95
USD 519,335
43,459 -0.7% 11.95 USD 519,335
2025-02-04 2025-02-03 PS Planned sale

Sponsel David

EVP, SALES

Officer
36,256 -4.7%
11.42
USD 414,044
36,256 -4.7% 11.42 USD 414,044
2025-01-31 2025-01-30 PS Planned sale

Miles Patrick

CEO

Executive Director
43,313 -0.7%
12.03
USD 521,055
43,313 -0.7% 12.03 USD 521,055
2025-01-31 2025-01-29 PS Planned sale

Miles Patrick

CEO

Executive Director
50,000 -0.8%
12.03
USD 601,500
50,000 -0.8% 12.03 USD 601,500
2025-01-23 2025-01-21 PS Planned sale

Miles Patrick

CEO

Executive Director
6,687 -0.1%
12.00
USD 80,244
6,687 -0.1% 12.00 USD 80,244
2025-01-14 2025-01-13 PS Planned sale

Sponsel David

EVP, SALES

Officer
58,283 -10.4%
10.71
USD 624,211
58,283 -10.4% 10.71 USD 624,211
2025-01-14 2025-01-10 PS Planned sale

Sponsel David

EVP, SALES

Officer
238 -0.0%
10.00
USD 2,380
238 -0.0% 10.00 USD 2,380
2024-12-13 2024-12-11 PS Planned sale

Sponsel David

EVP, SALES

Officer
62,018 -10.0%
9.69
USD 600,954
62,018 -10.0% 9.69 USD 600,954
2024-11-22 2024-11-21 PS Planned sale

Miles Patrick

CEO

Executive Director
50,000 -0.9%
10.09
USD 504,500
50,000 -0.9% 10.09 USD 504,500
2024-11-22 2024-11-20 PS Planned sale

Miles Patrick

CEO

Executive Director
50,000 -0.9%
10.03
USD 501,500
50,000 -0.9% 10.03 USD 501,500
2024-08-26 2024-08-23 B Purchase

Bakst Evan

Non-Executive Director
35,000 +233.3%
5.76
USD 201,600
35,000 +233.3% 5.76 USD 201,600
2024-08-26 2024-08-23 B Purchase

Pelizzon David R

Non-Executive Director Large shareholder
16,978 +5.4%
5.89
USD 100,000
16,978 +5.4% 5.89 USD 100,000
2024-08-26 2024-08-22 B Purchase

Pelizzon David R

Non-Executive Director Large shareholder
8,818 +2.9%
5.67
USD 49,998
8,818 +2.9% 5.67 USD 49,998
2024-08-21 2024-08-21 B Purchase

Demski David M

Non-Executive Director
50,000 +21.0%
5.67
USD 283,500
50,000 +21.0% 5.67 USD 283,500
2024-08-05 2024-08-02 B Purchase

Valentine Keith

Non-Executive Director
39,000 +90.4%
6.55
USD 255,450
39,000 +90.4% 6.55 USD 255,450
2024-08-05 2024-08-02 B Purchase

Demski David M

Non-Executive Director
40,000 +20.2%
6.56
USD 262,400
40,000 +20.2% 6.56 USD 262,400
2024-06-14 2024-06-12 S Sale

Marshall Tyson Eliot

GENERAL COUNSEL & CORP. SEC.

Officer
50,232 -17.0%
10.88
USD 546,524
50,232 -17.0% 10.88 USD 546,524
2024-04-26 2024-04-24 PS Planned sale

Koning John Todd

CHIEF FINANCIAL OFFICER

Officer
37,500 -8.7%
12.82
USD 480,750
37,500 -8.7% 12.82 USD 480,750
2024-03-18 2024-03-14 B Purchase

Bakst Evan

Non-Executive Director
15,000 +inf%
13.53
USD 202,950
15,000 +inf% 13.53 USD 202,950
2024-03-08 2024-03-07 B Purchase

Blackford Quentin S.

Non-Executive Director
20,000 +3.6%
12.83
USD 256,600
20,000 +3.6% 12.83 USD 256,600
2024-03-08 2024-03-06 PS Planned sale

Marshall Tyson Eliot

GENERAL COUNSEL & CORP. SEC.

Officer
9,225 -3.0%
13.16
USD 121,401
9,225 -3.0% 13.16 USD 121,401
2024-03-04 2024-03-01 PS Planned sale

Marshall Tyson Eliot

GENERAL COUNSEL & CORP. SEC.

Officer
11,825 -3.7%
13.30
USD 157,273
11,825 -3.7% 13.30 USD 157,273
2024-03-04 2024-03-01 PS Planned sale

Koning John Todd

CHIEF FINANCIAL OFFICER

Officer
121,601 -22.0%
13.30
USD 1,617,293
121,601 -22.0% 13.30 USD 1,617,293
2024-02-29 2024-02-27 PS Planned sale

Sponsel David

EVP, SALES

Officer
32,365 -4.9%
15.19
USD 491,624
32,365 -4.9% 15.19 USD 491,624
2024-02-29 2024-02-27 PS Planned sale

Lish Scott

CHIEF OPERATING OFFICER

Officer
31,075 -5.8%
15.19
USD 472,029
31,075 -5.8% 15.19 USD 472,029
2024-02-28 2024-02-26 PS Planned sale

Hunsaker Craig E

EVP, PEOPLE & CULTURE

Officer
41,560 -3.4%
15.05
USD 625,478
41,560 -3.4% 15.05 USD 625,478
2024-02-22 2024-02-21 PS Planned sale

Sponsel David

EVP, SALES

Officer
17,820 -2.6%
15.34
USD 273,359
17,820 -2.6% 15.34 USD 273,359
2024-02-22 2024-02-21 PS Planned sale

Lish Scott

CHIEF OPERATING OFFICER

Officer
11,963 -2.2%
15.34
USD 183,512
11,963 -2.2% 15.34 USD 183,512
2024-02-22 2024-02-20 PS Planned sale

Hunsaker Craig E

EVP, PEOPLE & CULTURE

Officer
77,255 -6.1%
15.16
USD 1,171,186
77,255 -6.1% 15.16 USD 1,171,186
2024-02-15 2024-02-14 PS Planned sale

Sponsel David

EVP, SALES

Officer
2,500 -0.4%
16.16
USD 40,400
2,500 -0.4% 16.16 USD 40,400
2024-02-05 2024-02-05 PS Planned sale

Hunsaker Craig E

EVP, PEOPLE & CULTURE

Officer
500 -0.0%
16.41
USD 8,205
500 -0.0% 16.41 USD 8,205
2024-02-05 2024-02-02 PS Planned sale

Lish Scott

CHIEF OPERATING OFFICER

Officer
25,210 -4.6%
16.47
USD 415,209
25,210 -4.6% 16.47 USD 415,209
2024-02-05 2024-02-02 PS Planned sale

Hunsaker Craig E

EVP, PEOPLE & CULTURE

Officer
38,556 -3.0%
16.51
USD 636,560
38,556 -3.0% 16.51 USD 636,560
2024-02-05 2024-02-02 PS Planned sale

Sponsel David

EVP, SALES

Officer
36,620 -5.4%
16.47
USD 603,131
36,620 -5.4% 16.47 USD 603,131
2024-01-17 2024-01-16 PS Planned sale

Sponsel David

EVP, SALES

Officer
2,500 -0.4%
15.00
USD 37,500
2,500 -0.4% 15.00 USD 37,500
2023-12-26 2023-12-21 PS Planned sale

Sponsel David

EVP, SALES

Officer
2,500 -0.4%
15.00
USD 37,500
2,500 -0.4% 15.00 USD 37,500
2023-11-13 2023-11-09 B Purchase

Demski David M

Non-Executive Director
30,000 +19.8%
10.50
USD 315,000
30,000 +19.8% 10.50 USD 315,000
2023-09-27 2023-09-27 PS Planned sale

Miles Patrick

CEO

Executive Director
59,375 -1.1%
13.00
USD 771,875
59,375 -1.1% 13.00 USD 771,875
2023-09-27 2023-09-26 PS Planned sale

Miles Patrick

CEO

Executive Director
60,000 -1.1%
12.46
USD 747,600
60,000 -1.1% 12.46 USD 747,600
2023-09-27 2023-09-25 PS Planned sale

Miles Patrick

CEO

Executive Director
60,000 -1.1%
12.51
USD 750,600
60,000 -1.1% 12.51 USD 750,600
2023-09-20 2023-09-20 PS Planned sale

Miles Patrick

CEO

Executive Director
60,000 -1.1%
13.35
USD 801,000
60,000 -1.1% 13.35 USD 801,000
2023-09-20 2023-09-19 PS Planned sale

Miles Patrick

CEO

Executive Director
60,000 -1.0%
13.42
USD 805,200
60,000 -1.0% 13.42 USD 805,200
2023-09-20 2023-09-18 PS Planned sale

Miles Patrick

CEO

Executive Director
60,000 -1.0%
13.48
USD 808,800
60,000 -1.0% 13.48 USD 808,800
2023-09-13 2023-09-11 S Sale

TULLIS JAMES L L

Non-Executive Director
70,000 -11.0%
14.74
USD 1,031,800
70,000 -11.0% 14.74 USD 1,031,800
2023-09-13 2023-09-11 S Sale

TULLIS JAMES L L

Non-Executive Director
35,000 -16.9%
14.74
USD 515,900
35,000 -16.9% 14.74 USD 515,900
2023-09-13 2023-09-11 S Sale

Mowry David H

Non-Executive Director
9,500 -9.3%
14.46
USD 137,370
9,500 -9.3% 14.46 USD 137,370
2023-08-24 2023-08-23 PS Planned sale

Bakst Evan

Non-Executive Director
8,700 -0.8%
14.92
USD 129,804
8,700 -0.8% 14.92 USD 129,804
2023-08-10 2023-08-10 B Purchase

Pritzker Jennifer N.

Large shareholder
1,000 +20.0%
14.95
USD 14,950
1,000 +20.0% 14.95 USD 14,950
2023-08-10 2023-08-10 B Purchase

Pritzker Jennifer N.

Large shareholder
1,000 +14.3%
14.95
USD 14,950
1,000 +14.3% 14.95 USD 14,950
2023-08-10 2023-08-10 B Purchase

Pritzker Jennifer N.

Large shareholder
2,400 +4.3%
14.99
USD 35,976
2,400 +4.3% 14.99 USD 35,976
2023-08-10 2023-08-08 B Purchase

Pritzker Jennifer N.

Large shareholder
1,350 +12.8%
15.56
USD 21,006
1,350 +12.8% 15.56 USD 21,006
2023-06-28 2023-06-28 PS Planned sale

Hunsaker Craig E

EVP, PEOPLE/CULTURE & GC

Officer
100,487 -8.2%
18.00
USD 1,808,766
100,487 -8.2% 18.00 USD 1,808,766
2023-06-28 2023-06-27 PS Planned sale

Hunsaker Craig E

EVP, PEOPLE/CULTURE & GC

Officer
6,542 -0.5%
18.00
USD 117,756
6,542 -0.5% 18.00 USD 117,756
2023-06-20 2023-06-16 PS Planned sale

Altman Elizabeth Ann

Non-Executive Director
9,273 -22.9%
16.14
USD 149,666
9,273 -22.9% 16.14 USD 149,666
2023-06-20 2023-06-15 PS Planned sale

Sponsel David

EVP, SALES

Officer
55,577 -9.0%
16.17
USD 898,680
55,577 -9.0% 16.17 USD 898,680
2023-06-16 2023-06-12 S Sale

Segal Paul

Non-Executive Director
71,329 -41.6%
15.15
USD 1,080,634
71,329 -41.6% 15.15 USD 1,080,634
2023-06-14 2023-06-12 S Sale

Segal Paul

Non-Executive Director
71,329 -41.6%
15.15
USD 1,080,634
71,329 -41.6% 15.15 USD 1,080,634
2023-05-16 2023-05-15 PS Planned sale

Hunsaker Craig E

EVP, PEOPLE/CULTURE & GC

Officer
58,238 -4.5%
15.29
USD 890,459
58,238 -4.5% 15.29 USD 890,459
2023-05-12 2023-05-10 S Sale

Segal Paul

Large shareholder
167,496 -49.4%
14.88
USD 2,492,340
167,496 -49.4% 14.88 USD 2,492,340
2023-05-12 2023-05-10 S Sale

L-5 Healthcare Partners, LLC

Director by deputization

Large shareholder
1,700,000 -13.3%
14.88
USD 25,296,000
1,700,000 -13.3% 14.88 USD 25,296,000
2023-05-11 2023-05-10 B Purchase

Pritzker Jennifer N.

Large shareholder
1,000 +25.0%
15.71
USD 15,710
1,000 +25.0% 15.71 USD 15,710
2023-05-11 2023-05-10 B Purchase

Pritzker Jennifer N.

Large shareholder
1,000 +16.7%
15.71
USD 15,710
1,000 +16.7% 15.71 USD 15,710
2023-05-11 2023-05-10 B Purchase

Pritzker Jennifer N.

Large shareholder
2,400 +4.5%
15.57
USD 37,368
2,400 +4.5% 15.57 USD 37,368
2023-05-11 2023-05-09 B Purchase

Pritzker Jennifer N.

Large shareholder
1,200 +12.8%
15.26
USD 18,312
1,200 +12.8% 15.26 USD 18,312
2023-04-24 2023-04-24 PS Planned sale

Hunsaker Craig E

EVP, PEOPLE/CULTURE & GC

Officer
28,311 -2.2%
15.85
USD 448,729
28,311 -2.2% 15.85 USD 448,729
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