Security key
02081G201
Alphatec Holdings, Inc. - Common Stock, par value $0.0001 per share (ATEC)
CUSIP: 02081G201
Q1 2025 13F Holders as of 31 Mar 2025
- Security type / class
- Equity / Common Stock, par value $0.0001 per share
- Total 13F shares
- 90,896,433
- Total 13F value
- $921,707,723
- Share change
- +6,763,552
- Put/Call ratio
- 12%
- SEC-reported price per share
- $10.14
- Number of holders
- 229
- Value change
- +$71,854,145
- Number of buys
- 120
- Number of sells
- 98
- Shares outstanding
- 148,491,921
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q1 2025
Institutions
229
Top holders
10
ATEC full security history
Ownership snapshot
Full 13F holder table
Alphatec Holdings, Inc. SEC filings
Alphatec Holdings, Inc. company facts
Broader feeds
Ownership snapshot
Top reported holders of ATEC - Alphatec Holdings, Inc. - Common Stock, par value $0.0001 per share (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
L-5 Healthcare Partners, LLC
Disclosed value leader
L-5 Healthcare Partners, LLC
Comparable rows
0/15
Latest evidence
31 Dec 2024
3/4/5
13F
Highest disclosed value: $166,223,070
15 rows are not safely comparable across share classes.
Showing 1-6 of 15 holder rows.
Quick read
L-5 Healthcare Partners, LLC has the largest disclosed position value at $166.22M.
0 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens L-5 Healthcare Partners, LLC's linked filing trail.
Disclosed position value
Top 5
L-5 Healthcare Partners, LLC
$166.22M
Paul Segal
$147.38M
BlackRock, Inc.
$78.7M
VANGUARD GROUP INC
$54.8M
AMERICAN CENTURY COMPANIES INC
$45.8M
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| L-5 Healthcare Partners, LLC |
3/4/5
Director by deputization, 10%+ Owner
|
—
denominator unverified
|
$166,223,070
11,081,538 shares
|
— | 10 May 2023 |
| Paul Segal |
3/4/5
Director
|
—
denominator unverified
|
$147,384,455
11,081,538 shares
|
— | 15 Jun 2023 |
| BlackRock, Inc. |
13F
Company
|
—
denominator unverified
|
$78,699,976
8,572,982 shares
|
— | 31 Dec 2024 |
| VANGUARD GROUP INC |
13F
Company
|
—
denominator unverified
|
$54,795,237
5,968,980 shares
|
— | 31 Dec 2024 |
| AMERICAN CENTURY COMPANIES INC |
13F
Company
|
—
denominator unverified
|
$45,799,553
4,989,057 shares
|
— | 31 Dec 2024 |
| BRAIDWELL LP |
13F
Company
|
—
denominator unverified
|
$39,074,578
4,256,490 shares
|
— | 31 Dec 2024 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q1 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
229
Shares
90,896,433
Rows available
229
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q1 2025 vs Q1 2025 Across Filers
Q1 2025 holders
229
Q1 2025 holders
229
Holder diff
0
| Investor | Q1 2025 Shares | Q1 2025 Shares | Share Diff | Share Chg % | Q1 2025 value | Q1 2025 value | Value change | Value Chg % |
|---|