$ATEC

$10.90 -$0.21 (1.89%) Close

$ATEC Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 154.5M shares outstanding

Who owns ATEC?

By type of holder

Institutions 71.9% Insiders 28.1% Everyone else 0.0%

Concentration Top 10 holders own 59.4%

Jennifer N. Pritzker 8.6% · BlackRock, Inc. 7.3%

Institutional ownership

71.9%

-1.4 pts vs last qtr

Institutional holders

265

-20 vs last qtr

Net shares bought

−2.1M

by institutions in Q2 2026

New / sold out

39 / 59

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Braidwell LP +4.4M
Jacobs Levy Equity Management, Inc NEW +3.4M

Biggest sellers in Q2 2026

Point72 Asset Management, L.P. SOLD OUT −2.5M
Next Century Growth Investors LLC SOLD OUT −2.4M

Who is planning to sell?

Notices of proposed sale, last 12 months

$30.7M

20 notices from 9 people

Shares covered

1.5M

0.99% of the company

Arranged in advance

67%

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

Craig Hunsaker Officer 10b5-1 $8.18M
Patrick Miles Director 10b5-1 $6.23M

Every notice on Red Flags →

A Form 144 is notice of a planned sale, not the sale itself. What insiders actually sold is on Insider Transactions.

Is your stake being diluted?

Diluted share count, FY2015–FY2025

+1708.4%

+37.94% a year

Each share's claim on the business

−94.5%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

$25M vs $336M

over 10 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years50% 3–5 years9% 1–3 years19% Under 1 year22%

Quarterly turnover

23.0%

of institutional shares changed hands

Top 10 managers, median time held

5 years

Super Investors

Investment managers reporting ATEC on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
B BlackRock, Inc.	11.3M	7.33%	+1.2M (+12.3%)	≤2021	0.0%
Shares held by quarter Peak holding11.3M (Q2'26) Change over 8 quarters+3.1M Share of the company7.330% BlackRock, Inc.'s full portfolio →
B Braidwell LP	6.5M	4.23%	+4.4M (+200.6%)	Q1 '26	2.1%
Shares held by quarter Peak holding6.5M (Q2'26) Change over 8 quarters+2.5M Share of the company4.230% Braidwell LP's full portfolio →

BlackRock, Inc.

11.3M

% of company

7.33%

Change vs last qtr

+1.2M (+12.3%)

Held since

≤2021

Braidwell LP

6.5M

% of company

4.23%

Change vs last qtr

+4.4M (+200.6%)

Held since

Q1 '26

28 more super investors behind a free account

See every manager holding Alphatec Holdings, Inc., how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting ATEC on Form N-PORT; together they hold 27.5% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
SC Small Cap Growth Fund American Century Mutual Funds, Inc.	$46.7M	4.9M	3.17%	0.84%	July 31, 2026
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$31.6M	3.6M	2.36%	0.00%	June 30, 2026

Small Cap Growth Fund

American Century Mutual Funds, Inc.

Position value

$46.7M

% of company

3.17%

% of the fund

0.84%

As of

July 31, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$31.6M

% of company

2.36%

% of the fund

0.00%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding Alphatec Holdings, Inc. and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
JN Jennifer N. Pritzker 5%+ holder 13D · 8.9%	13.2M	8.56%	—	—	—	—
This holder reports through Schedule 13D/G, not a quarterly 13F. Share of the company8.560% Disclosed stake13D · 8.9% View the 13D/G filing →
DR David R. Pelizzon 5%+ holder 13D · 7.2%	10.7M	6.95%	—	—	—	—
This holder reports through Schedule 13D/G, not a quarterly 13F. Share of the company6.950% Disclosed stake13D · 7.2% View the 13D/G filing →

Jennifer N. Pritzker

5%+ holder13D · 8.9%

13.2M

% of company

8.56%

Change vs last qtr

—

Held since

—

David R. Pelizzon

5%+ holder13D · 7.2%

10.7M

% of company

6.95%

Change vs last qtr

—

Held since

—

17 more holders behind a free account

See every insider and 5%+ holder of Alphatec Holdings, Inc..

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