Alphatec Holdings, Inc. - Common Stock, par value $0.0001 per share (ATEC)

Q: What does CUSIP 02081G201 represent in this 13F holders report?

CUSIP 02081G201 is the security identifier for ATEC - Alphatec Holdings, Inc. - Common Stock, par value $0.0001 per share used to aggregate holder disclosures.

Q: How many institutions held ATEC - Alphatec Holdings, Inc. - Common Stock, par value $0.0001 per share in Q3 2025?

269 institutional investors reported ATEC - Alphatec Holdings, Inc. - Common Stock, par value $0.0001 per share for Q3 2025. Use the holders table for investor-level position and value details.

CUSIP: 02081G201

Q3 2025 13F Holders as of 30 Sep 2025

Security type / class: Equity / Common Stock, par value $0.0001 per share
Total 13F shares: 108,131,166
Total 13F value: $1,572,206,011
Share change: +7,150,201
Put/Call ratio: 15%
SEC-reported price per share: $14.54
Number of holders: 269
Value change: +$108,986,715
Number of buys: 143
Number of sells: 111
Shares outstanding: 148,491,921

Security key

02081G201

Report period

Q3 2025

Institutions

269

Top holders

ATEC full security history Ownership snapshot Full 13F holder table Newer quarter: Q4 2025 Previous quarter: Q2 2025 Alphatec Holdings, Inc. SEC filings Alphatec Holdings, Inc. company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP 02081G201

Newer quarter: Q4 2025 Previous quarter: Q2 2025

Recent filing periods:

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024

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

15/15

Latest evidence

09 Sep 2025

3/4/5 13D/G 13F Lead comparable stake: 5% 13D/G row: L-5 Healthcare Partners, LLC Showing 1-6 of 15 holder rows.

Quick read

L-5 Healthcare Partners, LLC leads the comparable SEC ownership view at 5%.

15 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.

Comparable ownership Top 5

L-5 Healthcare Partners, LLC 5%

Ward W. Woods Jr. 1.5%

Mortimer Berkowitz III 0.85%

BlackRock, Inc. 6.4%

VANGUARD GROUP INC 4.5%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

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 13D/G Director by deputization, 10%+ Owner 3/4/5 13D/G	5% from 13D/G	$166,223,070 11,081,538 shares	—	10 May 2023
Ward W. Woods Jr.	3/4/5 Director 3/4/5	1.5%	$28,008,326 2,210,602 shares	—	11 Jun 2025
Mortimer Berkowitz III	3/4/5 Director 3/4/5	0.85%	$16,728,085 1,261,164 shares	-$998,125	09 Sep 2025
BlackRock, Inc.	13F Company 13F	6.4%	$105,627,032 9,515,949 shares	—	30 Jun 2025
VANGUARD GROUP INC	13F Company 13F	4.5%	$73,890,070 6,656,763 shares	—	30 Jun 2025
AMERICAN CENTURY COMPANIES INC	13F Company 13F	4.2%	$68,566,509 6,177,161 shares	—	30 Jun 2025

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 Q3 2025

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

269

108,131,166

Rows available

269

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 Q3 2025 vs Q2 2025 Across Filers

Q2 2025 holders

235

Q3 2025 holders

269

Holder diff

Investor	Q2 2025 Shares	Q3 2025 Shares	Share Diff	Share Chg %	Q2 2025 value	Q3 2025 value	Value change	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend