Alphatec Holdings, Inc. - Common Stock, par value $0.0001 per share (ATEC)
CUSIP: 02081G201
Q1 2026 13F Holders as of 31 Mar 2026
- Type / Class
- Equity / Common Stock, par value $0.0001 per share
- Shares outstanding
- 148,491,921
- Total 13F shares
- 1,047,668
- Share change
- +87,744
- Total reported value
- $11,397,273
- Price per share
- $10.88
- Number of holders
- 23
- Value change
- +$630,854
- Number of buys
- 11
- Number of sells
- 7
Quarterly Holders Quick Answers
What is CUSIP 02081G201?
CUSIP 02081G201 identifies ATEC - Alphatec Holdings, Inc. - Common Stock, par value $0.0001 per share in SEC institutional holdings data.
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Explore More Reporting Periods
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- Previous quarter: Q4 2025
Recent filing periods for CUSIP 02081G201:
Top shareholders 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. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| Squadron Capital LLC |
13D/G
3/4/5
|
Jennifer N. Pritzker · 10%+ Owner |
8.9%
|
13,215,781
|
$259,293,623 | $0 | 15 Dec 2025 | |
| Jennifer N. Pritzker |
3/4/5
|
10%+ Owner |
7.2%
|
10,703,045
|
$225,036,896 | -$15,650,098 | 08 Dec 2025 | |
| Squadron Capital Holdings LLC |
3/4/5
|
10%+ Owner |
7.2%
|
10,645,045
|
$223,865,296 | -$15,650,098 | 08 Dec 2025 | |
| BlackRock, Inc. |
13F
|
Company |
6.8%
|
10,157,648
|
$213,716,915 | — | 31 Dec 2025 | |
| David R. Pelizzon |
3/4/5
|
Director |
7.2%
|
10,741,872
|
$211,171,329 | -$20,565,098 | 16 Dec 2025 | |
| L-5 Healthcare Partners, LLC |
3/4/5
13D/G
|
Director by deputization, 10%+ Owner |
5%
from 13D/G
|
11,081,538
|
$166,223,070 | — | 10 May 2023 | |
| Paul Segal |
3/4/5
|
Director |
—
class O/S missing
|
11,081,538
|
$147,384,455 | — | 15 Jun 2023 | |
| VANGUARD GROUP INC |
13F
|
Company |
4.6%
|
6,883,626
|
$144,831,491 | — | 31 Dec 2025 | |
| AMERICAN CENTURY COMPANIES INC |
13F
|
Company |
4.4%
|
6,509,462
|
$136,959,122 | — | 31 Dec 2025 | |
| ROYAL BANK OF CANADA |
13F
|
Company |
3.3%
|
4,912,510
|
$103,360,000 | — | 31 Dec 2025 | |
| MORGAN STANLEY |
13F
|
Company |
2.9%
|
4,340,936
|
$91,333,321 | — | 31 Dec 2025 | |
| Patrick Miles |
3/4/5
|
CEO, Director |
—
mixed-class rows
|
6,192,304
mixed-class rows
|
$81,351,404 | -$12,323,000 | 05 Mar 2026 | |
| DEUTSCHE BANK AG\ |
13F
|
Company |
2.3%
|
3,342,350
|
$70,323,044 | — | 31 Dec 2025 | |
| BNP Paribas Asset Management Holding S.A. |
13F
|
Company |
2.1%
|
3,176,818
|
$66,841,000 | — | 31 Dec 2025 | |
| STATE STREET CORP |
13F
|
Company |
1.9%
|
2,889,240
|
$60,789,610 | — | 31 Dec 2025 | |
| Nuveen, LLC |
13F
|
Company |
1.9%
|
2,873,742
|
$60,463,532 | — | 31 Dec 2025 | |
| DRIEHAUS CAPITAL MANAGEMENT LLC |
13F
|
Company |
1.9%
|
2,858,771
|
$60,148,542 | — | 31 Dec 2025 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
1.9%
|
2,828,026
|
$59,511,256 | — | 31 Dec 2025 | |
| NEXT CENTURY GROWTH INVESTORS LLC |
13F
|
Company |
1.6%
|
2,418,298
|
$50,880,989 | — | 31 Dec 2025 | |
| MILLENNIUM MANAGEMENT LLC |
13F
|
Company |
1.5%
|
2,225,927
|
$46,833,504 | — | 31 Dec 2025 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
1.4%
|
2,106,389
|
$44,318,425 | — | 31 Dec 2025 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
1.4%
|
2,017,912
|
$42,456,870 | — | 31 Dec 2025 | |
| TWO SIGMA INVESTMENTS, LP |
13F
|
Company |
1.3%
|
1,968,209
|
$41,411,117 | — | 31 Dec 2025 | |
| Cerity Partners LLC |
13F
|
Company |
1.2%
|
1,824,489
|
$38,387,242 | — | 31 Dec 2025 | |
| EMERALD ADVISERS, LLC |
13F
|
Company |
1.1%
|
1,637,729
|
$34,457,818 | — | 31 Dec 2025 | |
| TWO SIGMA ADVISERS, LP |
13F
|
Company |
1.1%
|
1,635,100
|
$34,402,504 | — | 31 Dec 2025 | |
| TREMBLANT CAPITAL GROUP |
13F
|
Company |
1.1%
|
1,624,997
|
$34,189,937 | — | 31 Dec 2025 | |
| Walleye Capital LLC |
13F
|
Company |
1.1%
|
1,561,347
|
$32,850,741 | — | 31 Dec 2025 | |
| UBS Group AG |
13F
|
Company |
0.95%
|
1,409,860
|
$29,663,455 | — | 31 Dec 2025 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.93%
|
1,376,771
|
$28,967,262 | — | 31 Dec 2025 | |
| CITADEL ADVISORS LLC |
13F
|
Company |
0.9%
|
1,337,565
|
$28,142,367 | — | 31 Dec 2025 | |
| Ward W. Woods Jr. |
3/4/5
|
Director |
1.5%
|
2,210,602
|
$28,008,326 | — | 11 Jun 2025 | |
| Aberdeen Group plc |
13F
|
Company |
0.87%
|
1,286,195
|
$27,061,543 | — | 31 Dec 2025 | |
| Iron Triangle Partners LP |
13F
|
Company |
0.87%
|
1,285,685
|
$27,050,812 | — | 31 Dec 2025 | |
| Western Standard LLC |
13F
|
Company |
0.85%
|
1,255,374
|
$26,413,069 | — | 31 Dec 2025 | |
| James L. L. Tullis |
3/4/5
|
Director |
—
class O/S missing
|
1,569,859
|
$25,761,387 | — | 31 Dec 2023 | |
| Granite Investment Partners, LLC |
13F
|
Company |
0.77%
|
1,141,113
|
$24,009,018 | — | 31 Dec 2025 | |
| Hood River Capital Management LLC |
13F
|
Company |
0.77%
|
1,138,350
|
$23,950,884 | — | 31 Dec 2025 | |
| Craig E. Hunsaker |
3/4/5
|
EVP, PEOPLE & CULTURE |
—
mixed-class rows
|
1,893,329
mixed-class rows
|
$23,243,953 | -$8,049,634 | 06 Mar 2026 | |
| Point72 Asset Management, L.P. |
13F
|
Company |
0.74%
|
1,099,884
|
$23,141,559 | — | 31 Dec 2025 | |
| Penn Capital Management Company, LLC |
13F
|
Company |
0.72%
|
1,073,090
|
$22,629,380 | — | 31 Dec 2025 | |
| OBERWEIS ASSET MANAGEMENT INC/ |
13F
|
Company |
0.67%
|
1,000,400
|
$21,048,416 | — | 31 Dec 2025 | |
| NEW YORK STATE COMMON RETIREMENT FUND |
13F
|
Company |
0.67%
|
999,603
|
$21,031,647 | — | 31 Dec 2025 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
0.67%
|
995,692
|
$20,949,360 | — | 31 Dec 2025 | |
| Assenagon Asset Management S.A. |
13F
|
Company |
0.66%
|
978,343
|
$20,584,337 | — | 31 Dec 2025 | |
| Mortimer Berkowitz III |
3/4/5
|
Director |
0.83%
|
1,229,152
|
$19,525,669 | -$998,125 | 09 Sep 2025 | |
| EMERALD MUTUAL FUND ADVISERS TRUST |
13F
|
Company |
0.61%
|
910,053
|
$19,147,515 | — | 31 Dec 2025 | |
| MetLife Investment Management, LLC |
13F
|
Company |
0.61%
|
908,120
|
$19,106,845 | — | 31 Dec 2025 | |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. |
13F
|
Company |
0.6%
|
890,038
|
$18,726,000 | — | 31 Dec 2025 | |
| TUDOR INVESTMENT CORP ET AL |
13F
|
Company |
0.6%
|
887,803
|
$18,679,375 | — | 31 Dec 2025 |
Institutional Holders of Alphatec Holdings, Inc. - Common Stock, par value $0.0001 per share (ATEC) as of Q1 2026
As of 31 Mar 2026,
Alphatec Holdings, Inc. - Common Stock, par value $0.0001 per share (ATEC) was held by
23 institutional
shareholders
that filed Form 13F with the SEC.
Together, they reported ownership of
1,047,668 shares.
The largest 10 holders included
CONGRESS ASSET MANAGEMENT CO, Kopp Family Office, LLC, Assenagon Asset Management S.A., OP Asset Management Ltd, COURIER CAPITAL LLC, SG Americas Securities, LLC, PHILLIPS FINANCIAL MANAGEMENT, LLC, Cyndeo Wealth Partners, LLC, WEALTH ENHANCEMENT ADVISORY SERVICES, LLC, and KESTRA PRIVATE WEALTH SERVICES, LLC.
This page lists
30
institutional shareholders reporting positions in this security
for the Q1 2026 filing period.
| Investor | Option | Weight % | Change % | Value $ | * Price | Shares | Share Change | Activity | Report Period |
|---|
Compare Q1 2026 vs Q4 2025 Across Filers
Q4 2025 holders
280
Q1 2026 holders
23
Holder diff
-257
| Investor | Q4 2025 Shares | Q1 2026 Shares | Share Diff | Share Chg % | Q4 2025 Value $ | Q1 2026 Value $ | Value Diff $ | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.
An asterisk sign (*) next to the price indicates that the price is likely invalid.