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Alphatec Holdings
ATEC

230 hedge funds and large institutions have $2.64B invested in Alphatec Holdings in 2025 Q1 according to their latest regulatory filings, with 41 funds opening new positions, 81 increasing their positions, 66 reducing their positions, and 34 closing their positions.

New
Increased
Maintained
Reduced
Closed

636% more call options, than puts

Call options by funds: $68.1M | Put options by funds: $9.26M

239% more capital invested

Capital invested by funds: $778M → $2.64B (+$1.86B)

100% more funds holding in top 10

Funds holding in top 10: 1 → 2 (+1)

23% more repeat investments, than reductions

Existing positions increased: 81 | Existing positions reduced: 66

21.17% more ownership

Funds ownership: 59.75% → 80.93% (+21%)

21% more first-time investments, than exits

New positions opened: 41 | Existing positions closed: 34

1% more funds holding

Funds holding: 228 → 230 (+2)

Holders
230
Holders Change
+2
Holders Change %
+0.88%
% of All Funds
3.08%
Holding in Top 10
2
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+100%
% of All Funds
0.03%
New
41
Increased
81
Reduced
66
Closed
34
Calls
$68.1M
Puts
$9.26M
Net Calls
+$58.9M
Net Calls Change
+$47.1M

Top Buyers

1
N
Nuveen
North Carolina
+$116M
2
MIM
MetLife Investment Management
New Jersey
+$12.4M
3
DCM
Driehaus Capital Management
Illinois
+$11M
4
MFWM
Motley Fool Wealth Management
Virginia
+$9.6M
5
American Century Companies
American Century Companies
Missouri
+$9.03M

Top Sellers

1
Artisan Partners
Artisan Partners
Wisconsin
-$10.8M
2
Millennium Management
Millennium Management
New York
-$7.82M
3
MF
Magnetar Financial
Illinois
-$6.52M
4
Goldman Sachs
Goldman Sachs
New York
-$3.45M
5
BlackRock
BlackRock
New York
-$2.53M
Name Holding Trade Value Shares
Change 		Change in
Stake
FMI
76
F/M Investments
District of Columbia
$1.74M +$519K +48,315 +39%
I
77
INVST
Indiana
$1.61M – – –
RhumbLine Advisers
78
RhumbLine Advisers
Massachusetts
$1.51M +$104K +9,661 +7%
AG
79
Algert Global
California
$1.48M -$206K -19,170 -12%
SSA
80
Schonfeld Strategic Advisors
New York
$1.43M +$1.23M +114,573 +436%
Jane Street
81
Jane Street
New York
$1.4M -$82.3K -7,664 -5%
Barclays
82
Barclays
United Kingdom
$1.38M -$545K -50,730 -27%
TI
83
Trexquant Investment
Connecticut
$1.31M +$1.39M +129,496 New
Susquehanna International Group
84
Susquehanna International Group
Pennsylvania
$1.29M +$805K +75,042 +144%
Bank of Montreal
85
Bank of Montreal
Ontario, Canada
$1.17M +$1.24M +115,068 New
PP
86
PDT Partners
New York
$1.14M +$1.2M +112,072 New
Legal & General Group
87
Legal & General Group
United Kingdom
$1.11M -$37.7K -3,508 -3%
SCM
88
Semanteon Capital Management
Massachusetts
$1.04M +$746K +69,458 +211%
AllianceBernstein
89
AllianceBernstein
Tennessee
$1.04M – – –
CS
90
Cannell & Spears
New York
$1.01M – – –
California State Teachers Retirement System (CalSTRS)
91
California State Teachers Retirement System (CalSTRS)
California
$998K – – –
Connor, Clark & Lunn Investment Management (CC&L)
92
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
$973K +$1.03M +95,998 New
HWM
93
HighMark Wealth Management
Minnesota
$957K -$53.7K -5,000 -5%
CWM
94
Congress Wealth Management
Massachusetts
$941K +$996K +92,828 New
DFCM
95
Dark Forest Capital Management
Puerto Rico
$923K +$977K +91,021 New
NRD
96
Nebula Research & Development
New York
$891K -$75.7K -7,052 -7%
WWM
97
Western Wealth Management
Colorado
$883K +$81.7K +7,614 +10%
Citigroup
98
Citigroup
New York
$858K -$96.9K -9,023 -10%
Mirae Asset Global ETFs Holdings
99
Mirae Asset Global ETFs Holdings
Hong Kong
$750K +$34.3K +3,196 +5%
ACM
100
Aquatic Capital Management
Illinois
$704K -$91K -8,474 -11%
2 3
4
5 6

ATEC Hedge Fund Activity: Q1 2025 in Review

230 of the 7,457 institutional investors tracked by Wall St. Rank reported a position in Alphatec Holdings (ATEC) for Q1 2025, worth a combined $2.64B — up 239% from $778M a quarter earlier.

Buyers outnumbered sellers: 41 funds opened new ATEC positions and 34 closed out — a net gain of 7 holders — while 81 added to existing stakes and 66 trimmed.

The largest buyer was Nuveen, adding an estimated $116M. The largest seller was Artisan Partners, exiting entirely with an estimated $10.8M sold.

  • 230 institutional investors held Alphatec Holdings (ATEC) as of Q1 2025, up from 228 in Q4 2024.
  • Funds reported $2.64B of Alphatec Holdings stock for Q1 2025, up 239% quarter-over-quarter.
  • 41 funds opened new Alphatec Holdings positions in Q1 2025 and 34 closed out, a net change of +7 holders.
  • The largest Alphatec Holdings buyer in Q1 2025 was Nuveen, an estimated $116M added.
  • The largest Alphatec Holdings seller in Q1 2025 was Artisan Partners, an estimated $10.8M sold.

Based on aggregated 13F filings for Q1 2025.