Alphatec Holdings, Inc.
US ˙ NasdaqGS ˙ US02081G2012

SecurityATEC / Alphatec Holdings, Inc.
InstitutionCwm, Llc
Latest Disclosed Ownership55,380 shares
Latest Disclosed Value $ 602,534
Cwm, Llc reports 48.17% increase in ownership of ATEC / Alphatec Holdings, Inc.

On May 14, 2026 - Cwm, Llc filed a 13F-HR form disclosing ownership of 55,380 shares of Alphatec Holdings, Inc. (US:ATEC) valued at $602,534 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 37,377 shares of Alphatec Holdings, Inc.. The current value of the position is $425,318 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)
2026-05-14 2026-03-31 13F ALPHATEC HLDGS COM NEW 02081G201 55,380 18,003 48.17 603 0.0016
2026-01-26 2025-12-31 13F ALPHATEC HLDGS COM NEW 02081G201 37,377 231 0.62 1 0.0021
2025-10-15 2025-09-30 13F ALPHATEC HLDGS COM NEW 02081G201 37,146 1,606 4.52 1 0.0016
2025-07-25 2025-06-30 13F ALPHATEC HLDGS COM NEW 02081G201 35,540 4,204 13.42 0 0.0014
2025-05-01 2025-03-31 13F ALPHATEC HLDGS COM NEW 02081G201 31,336 12,598 67.23 0 0.0013
2025-02-04 2024-12-31 13F ALPHATEC HLDGS COM NEW 02081G201 18,738 12,683 209.46 0 0.0007
2024-10-08 2024-09-30 13F ALPHATEC HLDGS COM NEW 02081G201 6,055 4,584 311.62 0 0.0001
2024-07-10 2024-06-30 13F ALPHATEC HLDGS COM NEW 02081G201 1,471 536 57.33 0 0.0001
2024-04-05 2024-03-31 13F ALPHATEC HLDGS COM NEW 02081G201 935 283 43.40 0 0.0001
2024-02-01 2023-12-31 13F ALPHATEC HLDGS COM NEW 02081G201 652 -14 -2.10 0 0.0001
2023-10-11 2023-09-30 13F ALPHATEC HLDGS COM NEW 02081G201 666 542 437.10 0 0.0001
2023-08-03 2023-06-30 13F ALPHATEC HLDGS COM NEW 02081G201 124 41 49.40 0 0.0000
2023-05-01 2023-03-31 13F ALPHATEC HLDGS COM NEW 02081G201 83 0 0.00 0 0.0000
2023-02-01 2022-12-31 13F ALPHATEC HLDGS COM NEW 02081G201 83 0 0.00 0 -100.00 0.0000
2022-10-27 2022-09-30 13F ALPHATEC HLDGS COM NEW 02081G201 83 -100 -54.64 1 0.00 0.0000
2022-07-28 2022-06-30 13F ALPHATEC HLDGS COM NEW 02081G201 183 100 120.48 1 0.00 0.0000
2022-04-21 2022-03-31 13F ALPHATEC HLDGS COM NEW 02081G201 83 0 0.00 1 0.00 0.0000
2022-01-31 2021-12-31 13F ALPHATEC HLDGS COM NEW 02081G201 83 0 0.00 1 0.00 0.0000
2021-09-15 2021-06-30 13F/A-1 ALPHATEC HLDGS COM NEW 02081G201 83 0 0.00 1 0.00 0.0000
2021-07-29 2021-06-30 13F ALPHATEC HLDGS COM NEW 02081G201 83 0 1 0.0000
2021-09-15 2021-03-31 13F/A-1 ALPHATEC HLDGS COM NEW 02081G201 83 0 0.00 1 0.00 0.0000
2021-04-27 2021-03-31 13F ALPHATEC HLDGS COM NEW 02081G201 83 0 1 0.0000
2021-09-15 2020-12-31 13F/A-1 ALPHATEC HLDGS COM NEW 02081G201 83 0 0.00 1 0.00 0.0000
2021-01-27 2020-12-31 13F ALPHATEC HLDGS COM NEW 02081G201 83 0 1 0.0000
2021-09-15 2020-09-30 13F/A-1 ALPHATEC HLDGS COM NEW 02081G201 83 0 0.00 1 0.00 0.0000
2020-10-19 2020-09-30 13F ALPHATEC HLDGS COM NEW 02081G201 83 0 1 0.0000
2021-09-15 2020-06-30 13F/A-1 ALPHATEC HLDGS COM NEW 02081G201 83 0 0.00 1 0.00 0.0000
2021-09-15 2020-03-31 13F/A-1 ALPHATEC HLDGS COM NEW 02081G201 83 0 0.00 1 0.00 0.0000
2021-09-14 2019-12-31 13F/A-1 ALPHATEC HLDGS COM NEW 02081G201 83 0 0.00 1 0.00 0.0000
2021-09-14 2019-09-30 13F/A-1 ALPHATEC HLDGS COM NEW 02081G201 83 0 0.00 1 0.00 0.0000
2021-09-14 2019-06-30 13F/A-1 ALPHATEC HLDGS COM NEW 02081G201 83 0 0.00 1 0.00 0.0000
2021-09-02 2019-03-31 13F/A-1 ALPHATEC HLDGS COM NEW 02081G201 83 83 1 0.0000
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.