ATEC β€” ALPHATEC HLDGS INC

Ownership history in Walleye Trading LLC  Β·  13 quarters on record

AI Ownership Summary

Walleye Trading LLC reported ALPHATEC HLDGS INC (ATEC) in 13 quarterly 13F filings from 2023 Q3 through 2025 Q4. The latest visible filing shows ATEC at 0.00% of the fund.

This page tracks quarterly shares, estimated market value, portfolio weight, filing dates, and disclosure-aligned stock prices directly from SEC EDGAR 13F filings. Older history is available after unlock; the visible window still shows the most recent pattern.

What this ATEC ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was Walleye Trading LLC's position in ALPHATEC HLDGS INC, and how did that conviction change over time? You can read the holding window, peak weight, latest reported size, disclosure timing, and quarter-by-quarter changes without piecing the story together from raw SEC rows.

Freshest filing
Latest Reported Filing
2025 Q4

ATEC was reported at 0.00% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.0% in 2023 Q4

Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.

Time in book
Holding Window
2023 Q3 to 2025 Q4

Longer holding windows often tell a very different story from short-lived tactical trades or one-quarter experiments.

Decision context
Why It Matters
Position size beats headlines

Knowing that a fund owned a stock is useful. Knowing whether it was a 0.20% placeholder or a true high-conviction position is where the signal actually starts.

How Walleye Trading LLC held ATEC β€” position size vs. price
% of Fund (quarterly)    ATEC price (quarter-end, indexed to 100)
πŸ“‹ Quarterly Holdings History 6 quarters  β–Ύ
Quarter Action Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2025 Q4 REDUCED 6,700 -18,900 -73.8% 0.00% $141K 2026-02-14 (Est.) $13.36
2025 Q4 ADDED 25,600 +14,300 +126.5% 0.00% $539K 2026-02-14 (Est.) $13.36
2025 Q3 ADDED 11,300 +10,982 +3453.5% 0.00% $164K 2025-11-14 $19.74
2025 Q3 REDUCED 318 -75,316 -99.6% 0.00% $5K 2025-11-14 $19.74
2023 Q4 ADDED 75,634 +25,281 +50.2% 0.00% $1.1M 2024-02-14 $15.79
2023 Q3 ADDED 50,353 +2,375 +5.0% 0.00% $653K 2023-11-14 $10.63
7 older quarters hidden  β€”  Sign in free or upgrade to Premium to see full history

FAQ About Walleye Trading LLC and ATEC

These are the practical questions this page is built to answer before you even open the full history table.

How long has Walleye Trading LLC reported owning ATEC?

Walleye Trading LLC reported ATEC across 6 quarterly 13F filings, from 2023 Q3 through 2025 Q4.

What was the largest reported ATEC position in Walleye Trading LLC's portfolio?

The largest reported portfolio weight for ATEC was 0.00% in 2023 Q4.

What is the latest reported ATEC position on this page?

The most recent filing on this page is 2025 Q4, when Walleye Trading LLC reported 6,700 shares, equal to 0.00% of portfolio, with an estimated market value of $141K.

What does the chart on this ATEC ownership page compare?

The chart compares Walleye Trading LLC's quarterly ATEC portfolio weight with the stock's indexed share price, so you can see whether the fund was building, trimming, or holding the position as price moved.

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