Ticker · CUSIP 02081G201

ATEC

ALPHATEC HLDGS INC
Healthcare·Medical Devices
···Share
Holders (tracked)
14
Combined shares
10,909,422
Combined value
$227.57M
Last close
—
Quarter
2025Q4
Tracked holders · last 8 quarters
+3 vs previous quarter over the last 8.
14112024Q12025Q4

SEC event timeline

20 events
  1. T. Rowe Price added2026-02-17
    +6,654 shares · 2025Q4
    13F
  2. D.E. Shaw & Co. added2026-02-17
    +255,985 shares · 2025Q4
    13F
  3. Paul Tudor Jones (Tudor Investment) opened position2026-02-17
    +887,803 shares · 2025Q4
    13F
  4. AQR Capital Management trimmed2026-02-17
    −4,545 shares · 2025Q4
    13F
  5. Two Sigma Investments added2026-02-17
    +173,885 shares · 2025Q4
    13F
  6. Izzy Englander (Millennium Mgmt) added2026-02-17
    +1,658,349 shares · 2025Q4
    13F
  7. Steve Cohen (Point72) added2026-02-17
    +949,545 shares · 2025Q4
    13F
  8. Ken Griffin (Citadel Advisors) added2026-02-17
    +1,152,673 shares · 2025Q4
    13F
  9. Renaissance Technologies trimmed2026-02-12
    −108,869 shares · 2025Q4
    13F
  10. Norges Bank (Norway SWF) opened position2026-02-10
    +649,814 shares · 2025Q4
    13F
  11. First Eagle Investment Management trimmed2026-02-04
    −22,000 shares · 2025Q4
    13F
  12. Paul Tudor Jones (Tudor Investment) exited2025-12-09
    −127,124 shares · 2025Q3
    13F
  13. Steve Cohen (Point72) trimmed2025-11-14
    −159,156 shares · 2025Q3
    13F
  14. Two Sigma Investments added2025-11-14
    +665,634 shares · 2025Q3
    13F
  15. D.E. Shaw & Co. opened position2025-11-14
    +14,128 shares · 2025Q3
    13F
  16. T. Rowe Price added2025-11-14
    +8,601 shares · 2025Q3
    13F
  17. AQR Capital Management trimmed2025-11-14
    −3,433 shares · 2025Q3
    13F
  18. Izzy Englander (Millennium Mgmt) added2025-11-14
    +82,622 shares · 2025Q3
    13F
  19. Renaissance Technologies added2025-11-13
    +234,800 shares · 2025Q3
    13F
  20. First Eagle Investment Management trimmed2025-11-12
    −10,300 shares · 2025Q3
    13F

Insider activity

No insider transactions in the last 30 days.
View full insider history for ATEC →

Who moved on this name in 2025Q4

13F transactions reported for the latest quarter, grouped by direction.
New positions2
Added to6
Trimmed3
Exited0
—

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.
QuarterHoldersCombined value
2022Q1
9
$105.0M
2022Q2
11
$1.29B
2022Q3
10
$1.2M
2022Q4
11
$89.0M
2023Q1
11
$126.8M
2023Q2
12
$191.5M
2023Q3
12
$179.1M
2023Q4
11
$244.7M
2024Q1
11
$229.1M
2024Q2
11
$166.1M
2024Q3
11
$39.7M
2024Q4
12
$44.2M
2025Q1
12
$50.0M
2025Q2
11
$52.1M
2025Q3
11
$77.8M
2025Q4
14
$227.6M

Who owns ATEC

14 super-investors · 2025Q4
Tracked stake
10.91M
shares
Combined value
$228M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New3Added8Trim3
#ManagerSharesValue
1Izzy Englander
Millennium Mgmt
2.23M$47M
2Two Sigma Investments1.97M$41M
3Ken Griffin
Citadel Advisors
1.34M$28M
4Steve Cohen
Point72
1.10M$23M
5Paul Tudor Jones
Tudor Investment
887.8K$19M
6Renaissance Technologies870.1K$18M
7First Eagle Investment Management676.1K$14M
8Norges Bank
Norway SWF
649.8K$14M
9AQR Capital Management604.1K$13M
10D.E. Shaw & Co.270.1K$6M
11Ken Griffin
Citadel Advisors
181.7K$4M
12Ken Griffin
Citadel Advisors
34.6K$728K
13Paul Tudor Jones
Tudor Investment
9.8K$206K
14T. Rowe Price93.7K$2K

Recent moves

20 transactions
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