ATEC Institutional Ownership
Who owns Alphatec Holdings, Inc. and what the big funds did with it last quarter, from every SEC 13F filing. 272 funds reported holding ATEC at Jun 30, 2026, together owning 85.1% of the company.
- ●147 buying vs 136 selling
- ▼Held by funds -1.7 pts
- ▼Funds holding -18
- ▼Superinvestors: 1 added, 3 cut
- ●Put/call not meaningful
What the filings show, not a forecast. Positions can be up to 45 days old and leave out short sales.
Funds holding and ownership
8 quartersQuarter over quarter
all 13F filers| Q2 2026 | This quarter | Q1 2026 | Change |
|---|---|---|---|
| Funds holding | 272 | 290 | −6.2% |
| In funds' top 10 | 2 | 2 | 0.0% |
| 13F shares | 132M | 135M | −1.9% |
| Held by funds | 85.1% | 86.8% | −1.7 pts |
| New positions | 38 | 52 | −26.9% |
| Increased | 109 | 105 | +3.8% |
| Reduced | 82 | 78 | +5.1% |
| Sold out | 54 | 50 | +8.0% |
| Calls (shares) | 93K | 69K | +35.6% |
| Puts (shares) | 33K | 15K | +122.8% |
| Put/call ratio | 0.36 | 0.22 | +64.3% |
Buyers vs sellers
adding or new vs cutting or sold outSuperinvestors in ATEC
All superinvestors →
Who owns ATEC
share of fund held shares- Index and passive funds21.3%
- Active managers and hedge funds60.6%
- Banks and brokers16.8%
- Pensions, insurers and other1.3%
The top 10 holders own 45.9% of all ATEC shares that funds reported. Groups are our own grouping of filers by name.
Put/call ratio
funds' options, market makers left outAbove 1 means funds hold more puts than calls, a sign of hedging or bets on a fall. Options are valued at the underlying shares.
Filed so far for Q3 2026
67 funds changed their position- Absolute Investment Advisers, LLCSold out−2.5M sh
- Assenagon Asset Management S.A.Trimmed−197K sh
- Wedge Capital Management L L P/ncNew+192K sh
- DekaBank Deutsche GirozentraleNew+162K sh
- Y-Intercept (Hong Kong) LtdTrimmed−130K sh
🔒 Free account: see all 20.
Top holders
Q2 2026| # | Fund | Of company | Shares | Value | Change |
|---|---|---|---|---|---|
| 1 | Absolute Investment Advisers, LLC | 9.35% | 14.5M | $13.8M | +2.8M |
| 2 | BlackRock, Inc. | 7.30% | 11.3M | $98M | +1.2M |
| 3 | Braidwell LP | 4.21% | 6.5M | $56.5M | +4.4M |
| 4 | American Century Companies Inc | 4.20% | 6.5M | $56.4M | +97K |
| 5 | Vanguard Capital Management LLC | 3.30% | 5.1M | $44.3M | +209K |
| 6 | BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 2.28% | 3.5M | $30.6M | −80K |
| 7 | State Street Corp | 2.24% | 3.5M | $30.1M | +450K |
| 8 | Jacobs Levy Equity Management, Inc | 2.16% | 3.4M | $29M | +3.4M |
| 9 | Geode Capital Management, LLC | 2.06% | 3.2M | $27.6M | +282K |
| 10 | Royal Bank of Canada | 1.93% | 3M | $25.9M | −1.5M |
- Braidwell LP+4.4M sh+$37.7M
- Jacobs Levy Equity Management, Inc+3.4M sh+$29M
- Citadel Advisors LLC+1.6M sh+$13.9M
- First Eagle Investment Management, LLC+1.3M sh+$11.2M
- BlackRock, Inc.+1.2M sh+$10.7M
- Freestone Grove Partners LP+1.2M sh+$10.1M
- Paradigm Capital Management Inc/ny+1.1M sh+$9.4M
- Arrowstreet Capital, Limited Partnership+1.1M sh+$9.1M
- Point72 Asset Management, L.P.−2.5M sh−$27.1M
- Next Century Growth Investors LLC−2.4M sh−$25.8M
- Hood River Capital Management LLC−2.3M sh−$25M
- Oberweis Asset Management Inc/−1.9M sh−$20.8M
- Millennium Management LLC−1.7M sh−$14.4M
- Royal Bank of Canada−1.5M sh−$13.2M
- MetLife Investment Management, LLC−1.3M sh−$10.9M
- Two Sigma Investments, LP−1.2M sh−$10.5M
ATEC institutional ownership FAQ
Who owns the most ATEC stock?
In Q2 2026 13F filings the largest holder of ATEC was Absolute Investment Advisers, LLC, followed by BlackRock, Inc. and Braidwell LP. Index fund managers are usually the biggest holders of large companies.
What percentage of ATEC is owned by institutions?
Funds that file 13F reports held 85.1% of ATEC's shares at Jun 30, 2026, compared with 86.8% a quarter earlier. That counts every manager with more than $100 million in US stocks.
Are hedge funds buying ATEC?
In Q2 2026, 147 funds bought ATEC (38 of them new positions) and 136 sold (54 sold out completely). Among well known investors, 1 added and 3 cut. Our fund sentiment for ATEC is bearish.
What is ATEC's institutional put/call ratio?
Funds reported $287K of ATEC puts against $807K of calls, a put/call ratio of 0.36 (0.22 the quarter before). Market makers and bank trading desks are left out, since their options are mostly hedges.
How current is this ATEC ownership data?
13F filings show holdings at the end of each quarter and are due within 45 days, so positions can be up to six weeks old when they appear. We add each new filing within minutes, and the "filed so far" list shows funds that have already reported the next quarter.
For informational and educational purposes only. Not investment advice, and not a recommendation to buy or sell any security. Fund sentiment summarises what 13F filings show and is not a forecast. Holdings come from SEC Form 13F filings as reported and show positions at the end of the quarter, up to 45 days before the filing. A 13F leaves out short positions, cash, bonds and most foreign holdings. See all hedge fund holdings.