Alphatec Holdings, Inc.
DE ˙ DB ˙ US02081G2012
6,50 € ↑0,20 (3,17%)
2026-06-05
DEL PRIS
SecurityDE:L1Z1 / Alphatec Holdings, Inc.
InstitutionQuadrant Capital Group Llc
Latest Disclosed Ownership696 shares
Latest Disclosed Value $ 7,573
Quadrant Capital Group Llc ownership in L1Z1 / Alphatec Holdings, Inc.

On May 13, 2026 - Quadrant Capital Group Llc filed a 13F-HR/A form disclosing ownership of 696 shares of Alphatec Holdings, Inc. (DE:L1Z1) valued at $6,524 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 696 shares of Alphatec Holdings, Inc.. This represents a change in shares of 0.00% during the quarter. The current value of the position is $4,524 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-13 2026-03-31 13F/A-1 ALPHATEC HLDGS COM NEW 02081G201 696 0 0.00 8 -50.00 0.0002
2026-05-11 2026-03-31 13F ALPHATEC HLDGS COM NEW 02081G201 696 0 49 0.0369
2026-02-12 2025-12-31 13F ALPHATEC HLDGS COM NEW 02081G201 696 -121 -14.81 15 27.27 0.0004
2025-11-13 2025-09-30 13F ALPHATEC HLDGS COM NEW 02081G201 817 817 12 0.0004
2025-08-13 2025-06-30 13F ALPHATEC HLDGS COM NEW 02081G201 0 -765 -100.00 0 -100.00
2025-05-13 2025-03-31 13F ALPHATEC HLDGS COM NEW 02081G201 765 0 0.00 8 0.00 0.0003
2025-02-13 2024-12-31 13F ALPHATEC HLDGS COM NEW 02081G201 765 765 7 0.0005
2024-11-12 2024-09-30 13F ALPHATEC HLDGS COM NEW 02081G201 0 -224 -100.00 0 -100.00
2024-08-12 2024-06-30 13F ALPHATEC HLDGS COM NEW 02081G201 224 -117 -34.31 2 -50.00 0.0002
2024-05-15 2024-03-31 13F ALPHATEC HLDGS COM NEW 02081G201 341 59 20.92 5 0.00 0.0004
2024-02-08 2023-12-31 13F ALPHATEC HLDGS COM NEW 02081G201 282 -391 -58.10 4 -50.00 0.0004
2023-11-14 2023-09-30 13F ALPHATEC HLDGS COM NEW 02081G201 673 487 261.83 9 166.67 0.0009
2023-08-10 2023-06-30 13F ALPHATEC HLDGS COM NEW 02081G201 186 0 0.00 3 50.00 0.0003
2023-05-11 2023-03-31 13F ALPHATEC HLDGS COM NEW 02081G201 186 0 0.00 3 0.00 0.0003
2023-02-13 2022-12-31 13F ALPHATEC HLDGS COM NEW 02081G201 186 119 177.61 2 100.00 0.0003
2022-11-10 2022-09-30 13F ALPHATEC HLDGS COM NEW 02081G201 67 67 1 0.0001
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.