Alphatec 控股公司
US ˙ NasdaqGS ˙ US02081G2012

SecurityATEC / Alphatec Holdings, Inc.
InstitutionQUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series
Latest Disclosed Ownership198,612 shares
Latest Disclosed Value $ 2,204,593
QUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series reports 12.12% increase in ownership of ATEC / Alphatec Holdings, Inc.

On August 26, 2025 - QUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series filed a NPORT-P form disclosing ownership of 198,612 shares of Alphatec Holdings, Inc. (US:ATEC) valued at $2,204,593 USD as of June 30, 2025. The entity filed a previous NPORT-P on May 28, 2025 disclosing 177,144 shares of Alphatec Holdings, Inc.. This represents a change in shares of 12.12% during the quarter. The current value of the position is $1,588,896 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)
2025-08-26 2025-06-30 NP Alphatec Holdings EC US02081G2012 198,612 21,468 12.12 2,205 22.72 0.0495
2025-05-28 2025-03-31 NP Alphatec Holdings EC US02081G2012 177,144 0 0.00 1,796 10.46 0.0431
2025-02-25 2024-12-31 NP Alphatec Holdings EC US02081G2012 177,144 -26,189 -12.88 1,626 43.89 0.0355
2024-11-26 2024-09-30 NP Alphatec Holdings EC US02081G2012 203,333 26,370 14.90 1,131 -38.89 0.0214
2024-08-26 2024-06-30 NP Alphatec Holdings EC US02081G2012 176,963 15,190 9.39 1,849 -17.09 0.0377
2024-05-28 2024-03-31 NP Alphatec Holdings EC US02081G2012 161,773 -5,620 -3.36 2,231 -11.82 0.0466
2024-02-26 2023-12-31 NP Alphatec Holdings EC US02081G2012 167,393 31,272 22.97 2,529 43.29 0.0540
2023-11-28 2023-09-30 NP Alphatec Holdings EC US02081G2012 136,121 1,534 1.14 1,765 -27.04 0.0461
2023-08-25 2023-06-30 NP Alphatec Holdings EC US02081G2012 134,587 18,702 16.14 2,420 33.87 0.0574
2023-05-26 2023-03-31 NP Alphatec Holdings EC US02081G2012 115,885 0 0.00 1,808 26.28 0.0481
2023-02-24 2022-12-31 NP Alphatec Holdings EC US02081G2012 115,885 6,539 5.98 1,431 49.84 0.0394
2022-11-25 2022-09-30 NP Alphatec Holdings EC US02081G2012 109,346 0 0.00 956 33.57 0.0274
2022-08-25 2022-06-30 NP Alphatec Holdings EC US02081G2012 109,346 0 0.00 715 -43.12 0.0197
2022-05-26 2022-03-31 NP Alphatec Holdings EC US02081G2012 109,346 0 0.00 1,257 0.64 0.0293
2022-02-25 2021-12-31 NP Alphatec Holdings EC US02081G2012 109,346 0 0.00 1,250 -6.23 0.0271
2021-11-24 2021-09-30 NP Alphatec Holdings EC US02081G2012 109,346 0 0.00 1,333 -20.48 0.0294
2021-08-26 2021-06-30 NP Alphatec Holdings EC US02081G2012 109,346 25,956 31.13 1,675 27.28 0.0359
2021-05-27 2021-03-31 NP Alphatec Holdings EC US02081G2012 83,390 -2,485 -2.89 1,317 5.62 0.0299
2021-02-25 2020-12-31 NP Alphatec Holdings EC US02081G2012 85,875 9,350 12.22 1,247 145.28 0.0319
2020-11-25 2020-09-30 NP Alphatec Holdings EC US02081G2012 76,525 0 0.00 508 41.50 0.0163
2020-08-27 2020-06-30 NP Alphatec Holdings EC US02081G2012 76,525 12,159 18.89 360 61.71 0.0118
2020-06-01 2020-03-31 NP Alphatec Holdings EC US02081G2012 64,366 5,149 8.70 222 -47.14 0.0091
2020-02-27 2019-12-31 NP Alphatec Holdings EC 02081G201 59,217 1,461 2.53 420 45.33 0.0126
2019-11-27 2019-09-30 NP Alphatec Holdings EC US02081G2012 57,756 57,756 290 0.0096
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.