13FBOX
Alphatec Holdings, Inc. · 13F Institutional Holdings
Options Calculator Rankings
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Alphatec Holdings, Inc.

ATEC
Institutions
38
Combined AUM (Q2 2026)
$365.5M
Combined Shares (Q2 2026)
382.0M
Overall Trend
Increase
All institutions combined
Basis: holder count and combined value / shares merge all share classes of the same company (e.g. Class A / C); each institution is counted once, and value & shares are the sum across classes.
📥 Inflow (Q1 2026→Q2 2026)
+133.9M
27 institutions added · 17 new buys
Est. buy amount
📤 Outflow (Q1 2026→Q2 2026)
-108.6M
12 institutions reduced · 5 exits
Est. sell amount
⚖️ Net Share Change
+25.4M
Net Buy
💰 Est. Net Value
≈ —
est. price
Latest AUM (Q2 2026)
$365.5M
Institutions
38
New Buys
17
Adds
10
Reduces
7
Exits
5
Unchanged
4
Ownership TrendPortfolio %Prev Q %RankQ2 2026 ValueQ2 2026 SharesPrev Q ValuePrev Q SharesShares ChangeAction
BRAIDWELL LP
2.45%2.11%#2$66.2M69.1M$63.4M61.6M+7.5M+12.17%Add
LINDEN ADVISORS LP
0.31%0.4%#9$59.2M61.9M$71.8M69.9M-8.0M-11.44%Reduce
ADVENT CAPITAL MANAGEMENT /DE/
0.76%#6$33.7M35.1M$00+35.1MNew Buy
Context Capital Management, LLC
0.56%#7$28.7M30.0M$00+30.0MNew Buy
SILVERBACK ASSET MANAGEMENT LLC
2.27%2.1%#3$21.0M22.0M$14.6M14.3M+7.8M+54.58%Add
AQR Arbitrage LLC
0.29%0.33%#10$20.4M21.3M$20.1M19.6M+1.8M+8.97%Add
CAPSTONE INVESTMENT ADVISORS, LLC
0.02%0.03%#16$20.4M21.3M$19.3M18.8M+2.5M+13.30%Add
Jump Financial, LLC
0.13%0.28%#12$16.7M17.6M$20.8M20.3M-2.7M-13.32%Reduce
ABSOLUTE INVESTMENT ADVISERS, LLC
1.33%0.34%#4$13.8M14.5M$12.0M11.8M+2.8M+23.40%Add
ARISTEIA CAPITAL, L.L.C.
0.15%#11$11.5M12.0M$00+12.0MNew Buy
STATE STREET CORP
<0.01%<0.01%#27$10.9M11.4M$5.2M5.1M+6.3M+123.36%Add
SSI INVESTMENT MANAGEMENT LLC
0.52%0.41%#8$9.0M9.4M$5.9M5.8M+3.6M+62.96%Add
BlackRock, Inc.
<0.01%<0.01%#33$7.6M7.9M$15.6M15.2M-7.3M-47.97%Reduce
SHENKMAN CAPITAL MANAGEMENT INC
0.9%0.33%#5$6.5M6.6M$2.8M2.6M+4.0M+151.86%Add
BNP PARIBAS FINANCIAL MARKETS
<0.01%<0.01%#22$4.7M5.0M$5.1M5.0M00.00%Unchanged
JPMORGAN CHASE & CO
<0.01%<0.01%#28$4.7M4.8M$3.4M4.7M+99,000+2.11%Add
BALYASNY ASSET MANAGEMENT L.P.
0.01%#21$4.3M4.5M$00+4.5MNew Buy
FMR LLC
<0.01%<0.01%#30$3.9M4.1M$5.3M5.2M-1.0M-19.85%Reduce
MORGAN STANLEY
<0.01%#29$3.8M4.0M$00+4.0MNew Buy
Jefferies Financial Group Inc.
0.02%0.03%#17$3.0M3.1M$3.7M3.6M-405,000-11.40%Reduce
DAVIDSON KEMPNER CAPITAL MANAGEMENT LP
0.03%#14$2.9M3.0M$00+3.0MNew Buy
BANK OF AMERICA CORP /DE/
<0.01%#31$2.4M2.5M$00+2.5MNew Buy
CITIGROUP INC
<0.01%<0.01%#25$2.0M2.1M$4.6M4.5M-2.3M-52.22%Reduce
DEUTSCHE BANK AG\
<0.01%#26$1.6M1.7M$00+1.7MNew Buy
SMH CAPITAL ADVISORS INC
5.42%0.01%#1$1.4M1.5M$717717+1.5M+202,549.93%Add
Kohlberg Kravis Roberts & Co. L.P.
0.02%#18$1.1M1.2M$00+1.2MNew Buy
GOLDMAN SACHS GROUP INC
<0.01%#34$1.0M1.1M$00+1.1MNew Buy
Invesco Ltd.
<0.01%<0.01%#35$952,5001.0M$2.0M2.0M-1.0M-50.00%Reduce
Catalyst Capital Advisors LLC
0.01%0.01%#19$670,250700,000$720,090700,00000.00%Unchanged
LAZARD ASSET MANAGEMENT LLC
<0.01%#23$571,506600,000$00+600,000New Buy
MILLENNIUM MANAGEMENT LLC
<0.01%<0.01%#32$334,263350,000$359,499350,00000.00%Unchanged
Central Pacific Bank - Trust Division
0.03%#15$302,895318,000$00+318,000New Buy
Virtus Fixed Income Advisers, LLC
0.04%#13$61,91365,000$00+65,000New Buy
ENVESTNET ASSET MANAGEMENT INC
<0.01%#37$39,05341,000$00+41,000New Buy
INSIGNEO ADVISORY SERVICES, LLC
<0.01%#24$19,05020,000$00+20,000New Buy
WEALTH ENHANCEMENT ADVISORY SERVICES, LLC
<0.01%#36$16,76417,000$00+17,000New Buy
SG Americas Securities, LLC
<0.01%#38$14,69014,690$00+14,690New Buy
VIRTUS ADVISERS, LLC
0.01%0.01%#20$14,28815,000$15,35615,00000.00%Unchanged

🧭 Institutional Sector Flow Heatmap

Net Outflow Net Inflow