Alphatec Holdings, Inc.

ATEC

Exchange: Nasdaq
Industry: Surgical & Medical Instruments & Apparatus
SEC CIK: 0001350653

SEC filings (opens in a new tab)

In the last 90 days, Alphatec Holdings, Inc. insiders filed 1 open-market purchase and 1 sale; 267 institutions reported holding it in 13F filings for Q2 2026, worth $966.6M in total; no superinvestor holds it.

Q3 2021 vs. Q2 2021

How the institutions holding Alphatec Holdings, Inc. changed between Q2 2021 and Q3 2021.

All holders in Q3 2021 All holders in Q2 2021

13F holders of ATEC: Q2 2021 compared with Q3 2021
Measure	Q2 2021	Of which not filed for Q3 2021	Q3 2021	Change
Holders	153	2	165	+14
Shares	44.6M	45.1K	53.2M	+8.63M (+19.4%)
Value	$681.7M	$690.0K	$648.0M	−$33.0M (−4.8%)

2 institutions that held it in Q2 2021 haven't filed for Q3 2021 yet. Not filing isn't selling, so the changes leave them out.

New holders (33)

Institutions that held Alphatec Holdings, Inc. at the end of Q3 2021 but not at the end of Q2 2021.

Institutions new to ATEC in Q3 2021
Institution	Shares	Value	% of portfolio
Janus Henderson Group PLC	1,004,453	$12.2M	0.01%
CastleArk Alternatives, LLC	411,475	$5.02M	0.19%
Dimensional Fund Advisors LP	354,367	$4.32M	0.00%
Mercer Global Advisors Inc	346,873	$4.23M	0.03%
Crestline Management, LP	259,245	$3.16M	0.30%
Parkman Healthcare Partners LLC	250,000	$3.05M	0.77%
Walleye Capital LLC	238,286	$2.90M	0.09%
Aristeia Capital LLC	91,944	$1.12M	0.02%
Occudo Quantitative Strategies LP	83,040	$1.01M	0.12%
Cullen/Frost Bankers, Inc.	52,980	$646.0K	0.01%
Tenor Capital Management Co., L.P.	49,068	$598.0K	0.01%
Ameriprise Financial Inc	44,730	$545.0K	0.00%
Sculptor Capital LP	30,672	$374.0K	0.00%
Weiss Asset Management LP	30,688	$374.0K	0.01%
LMR Partners LLP	30,672	$374.0K	0.01%
Natixis	30,000	$366.0K	0.00%
SG Americas Securities, LLC	28,571	$348.0K	0.00%
Myriad Asset Management Ltd.	24,516	$299.0K	0.03%
Simmons Bank	22,490	$274.0K	0.02%
Man Group plc	21,803	$266.0K	0.00%
HBK Investments L P	18,412	$224.0K	0.00%
Hudson Bay Capital Management LP	18,412	$224.0K	0.00%
Point72 Hong Kong Ltd	15,489	$189.0K	0.01%
Walleye Trading LLC	14,017	$171.0K	0.00%
Lido Advisors, LLC	13,316	$162.0K	0.00%
Jane Street Group, LLC	11,227	$137.0K	0.00%
Kestra Advisory Services, LLC	11,050	$135.0K	0.00%
Mirae Asset Global Investments Co., Ltd.	10,185	$124.0K	0.00%
Maverick Capital LtdSuperinvestorMaverick Capital	9,076	$111.0K	0.00%
Ogorek Anthony Joseph	1,750	$21.0K	0.01%
Group One Trading, L.P.	1,001	$12.0K	0.00%
Signaturefd, LLC	64	$1.00K	0.00%
FMR LLC	30	$0	0.00%

Sold out (19)

Institutions that held Alphatec Holdings, Inc. at the end of Q2 2021 and filed for Q3 2021 without it.

Institutions that sold out of ATEC in Q3 2021
Institution	Shares, Q2 2021	Value, Q2 2021
Marshall Wace, LLP	178,204	$2.73M
Calamos Advisors LLC	172,016	$2.63M
Fuller & Thaler Asset Management, Inc.	171,960	$2.63M
PDT Partners, LLC	80,603	$1.24M
Gsa Capital Partners LLP	46,248	$709.0K
HRT Financial LP	35,635	$545.0K
Harvest Investment Services, LLC	29,926	$458.0K
Algert Global LLC	21,860	$335.0K
Federated Hermes, Inc.	21,622	$331.0K
Old Mission Capital LLC	18,828	$288.0K
ProShare Advisors LLC	17,859	$274.0K
Tibra Equities Europe Ltd	17,199	$263.0K
STRS Ohio	15,200	$232.0K
Fox Run Management, L.L.C.	12,183	$187.0K
Raymond James & Associates	11,382	$174.0K
Dorsey Wright & Associates	2,813	$43.0K
Meeder Asset Management Inc	185	$3.00K
Parallel Advisors, LLC	61	$1.00K
Red Door Wealth Management, LLC	100	$1.00K

Not filed for Q3 2021 yet (2)

Institutions that held Alphatec Holdings, Inc. at the end of Q2 2021 and haven't filed a 13F for Q3 2021. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding ATEC in Q2 2021 that haven't filed for Q3 2021
Institution	Shares, Q2 2021	Value, Q2 2021
Bel Air Investment Advisors LLC	45,000	$689.0K
CWM, LLC	83	$1.00K