ATEC
Alphatec Holding (ATEC)
NASDAQ
$7.37+$0.37 (+5.31%)
Price as of Nov 11, 2026 7:55 PM EST
  • $1.1B
    Market Cap
  • -66.22%
    1-Year Change
  • Medical Devices
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
BLACKROCK, INC.
7.30%
11.3M
+1.2M (+10.93%)
Jun 30, 2026
BLACKROCK FUNDING, INC. /DE
5.53%
8.6M
+314,330 (+3.67%)
Dec 31, 2024
BLACKROCK INC.
5.35%
8.3M
+683,993 (+8.25%)
Jun 30, 2024
VANGUARD GROUP INC
4.44%
6.9M
+68,568 (+1.00%)
Dec 31, 2025
BRAIDWELL LP
4.21%
6.5M
+4.4M (+66.73%)
Jun 30, 2026
AMERICAN CENTURY COMPANIES INC
4.20%
6.5M
+96,882 (+1.49%)
Jun 30, 2026
UBS GROUP AG
3.36%
5.2M
0 (0.00%)
Jun 30, 2026

Current Ownership Distribution

  • Institutions1.6B (69.04%)
  • Mutual Funds585.9M (25.17%)
  • Insiders134.6M (5.78%)
  • Other0 (0.00%)

Insider Transactions

  • 5.78% (134.6M)
    Current InsiderOwnership (%, shares)
  • 2
    Number of InsiderBuying (last 12 months)
  • $53.8M
    Amount of InsiderBuying (last 12 months)
  • 10
    Number of InsiderSelling (last 12 months)
  • $1.6B
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
Demski David M
Buy
Oct 30, 2026
$408,600.00
60,000
$6.81
491,635
Miles Patrick
CEO
Buy
Sep 10, 2026
$1.0M
115,000
$8.81
5.9M
MCGINNIS KAREN K
Sell
Jun 11, 2026
$48,460.50
6,050
$8.01
94,671
Valentine Keith
Award
Jun 10, 2026
$0.00
32,012
$0.00
264,283
Demski David M
Award
Jun 10, 2026
$0.00
32,012
$0.00
431,635
Berkowitz Mortimer III
Award
Jun 10, 2026
$0.00
32,012
$0.00
650,062
Pelizzon David R
Award
Jun 10, 2026
$0.00
32,012
$0.00
378,839
Blackford Quentin S.
Award
Jun 10, 2026
$0.00
32,012
$0.00
600,381
MCGINNIS KAREN K
Award
Jun 10, 2026
$0.00
32,012
$0.00
100,721
Marshall Tyson Eliot
GENERAL COUNSEL & CORP. SEC.
Exempt
Apr 07, 2026
$0.00
15,000
$0.00
0
Marshall Tyson Eliot
GENERAL COUNSEL & CORP. SEC.
Exempt
Apr 07, 2026
$0.00
15,000
$0.00
0
Marshall Tyson Eliot
GENERAL COUNSEL & CORP. SEC.
Exempt
Apr 07, 2026
$0.00
12,500
$0.00
0
Marshall Tyson Eliot
GENERAL COUNSEL & CORP. SEC.
Exempt
Apr 07, 2026
$0.00
60,000
$0.00
0
Marshall Tyson Eliot
GENERAL COUNSEL & CORP. SEC.
Exempt
Apr 07, 2026
$29,700.00
15,000
$1.98
574,459
Marshall Tyson Eliot
GENERAL COUNSEL & CORP. SEC.
Exempt
Apr 07, 2026
$25,200.00
15,000
$1.68
589,459
Marshall Tyson Eliot
GENERAL COUNSEL & CORP. SEC.
Exempt
Apr 07, 2026
$41,750.00
12,500
$3.34
601,959
Marshall Tyson Eliot
GENERAL COUNSEL & CORP. SEC.
Exempt
Apr 07, 2026
$161,400.00
60,000
$2.69
661,959
Marshall Tyson Eliot
GENERAL COUNSEL & CORP. SEC.
In Kind
Apr 07, 2026
$258,024.79
23,393
$11.03
638,566
Lish Scott
CHIEF OPERATING OFFICER
Sell
Mar 13, 2026
$3.2M
260,535
$12.30
815,704
Koning John Todd
CHIEF FINANCIAL OFFICER
Sell
Mar 13, 2026
$986,192.04
79,789
$12.36
600,721
Sponsel David
EVP, SALES
Sell
Mar 11, 2026
$2.0M
163,452
$12.52
504,932
Hunsaker Craig E
EVP, PEOPLE & CULTURE
Sell
Mar 09, 2026
$1.0M
82,765
$12.45
1.7M
Hunsaker Craig E
EVP, PEOPLE & CULTURE
Gift
Mar 09, 2026
$0.00
600
$0.00
1.7M
Hunsaker Craig E
EVP, PEOPLE & CULTURE
Sell
Mar 06, 2026
$410,616.44
33,602
$12.22
1.8M
Koning John Todd
CHIEF FINANCIAL OFFICER
In Kind
Mar 05, 2026
$866,198.70
68,910
$12.57
680,510
Marshall Tyson Eliot
GENERAL COUNSEL & CORP. SEC.
Award
Feb 25, 2026
$0.00
42,459
$0.00
42,459
Miles Patrick
CEO
Award
Feb 25, 2026
$0.00
152,853
$0.00
152,853
Koning John Todd
CHIEF FINANCIAL OFFICER
Award
Feb 25, 2026
$0.00
55,197
$0.00
55,197
Sponsel David
EVP, SALES
Award
Feb 25, 2026
$0.00
46,705
$0.00
46,705
Marshall Tyson Eliot
GENERAL COUNSEL & CORP. SEC.
Award
Feb 25, 2026
$0.00
42,459
$0.00
42,459