ALPHATEC HLDGS INC

Ticker: ATEC CUSIP: 02081G201 Class: Com

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM's Holding History (CIK: 0001081019)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 110,093 Value ($000) $2,316 Avg Close $18.51 Range $13.13 - $22.66

Q3 2025

Shares 110,496 Value ($000) $1,607 Avg Close $13.92 Range $10.11 - $16.70

Q2 2025

Shares 98,441 Value ($000) $1,093 Avg Close $11.49 Range $8.81 - $13.14

Q1 2025

Shares 98,441 Value ($000) $998 Avg Close $10.73 Range $8.82 - $12.79

Q4 2024

Shares 98,441 Value ($000) $904 Avg Close $7.98 Range $4.88 - $10.63

Q3 2024

Shares 99,027 Value ($000) $551 Avg Close $7.68 Range $5.28 - $11.97

Q2 2024

Shares 94,663 Value ($000) $989 Avg Close $11.64 Range $9.25 - $14.54

Q1 2024

Shares 95,089 Value ($000) $1,311 Avg Close $14.83 Range $12.71 - $17.34

Q4 2023

Shares 99,153 Value ($000) $1,498 Avg Close $11.95 Range $8.66 - $15.48

Q3 2023

Shares 85,748 Value ($000) $1,112 Avg Close $15.66 Range $12.08 - $19.14

Q2 2023

Shares 84,298 Value ($000) $1,516 Avg Close $15.57 Range $14.10 - $18.59

Q1 2023

Shares 91,554 Value ($000) $1,428 Avg Close $14.14 Range $11.47 - $16.34

Q4 2022

Shares 92,594 Value ($000) $1,144 Avg Close $10.08 Range $8.58 - $12.38

Q3 2022

Shares 89,903 Value ($000) $786 Avg Close $7.91 Range $5.73 - $9.81

Q2 2022

Shares 90,232 Value ($000) $590 Avg Close $9.21 Range $6.16 - $13.65

Q1 2022

Shares 85,946 Value ($000) $988 Avg Close $10.81 Range $9.06 - $13.37

Q4 2021

Shares 93,256 Value ($000) $1,066 Avg Close $11.81 Range $10.31 - $13.94

Q3 2021

Shares 89,836 Value ($000) $1,095 Avg Close $13.95 Range $11.61 - $16.47

Q2 2021

Shares 94,842 Value ($000) $1,453 Avg Close $15.43 Range $13.33 - $18.00

Q1 2021

Shares 83,033 Value ($000) $1,311 Avg Close $15.74 Range $12.96 - $19.36

Q4 2020

Shares 83,284 Value ($000) $1,209 Avg Close $10.56 Range $6.11 - $14.97

Q3 2020

Shares 67,637 Value ($000) $449 Avg Close $5.64 Range $4.31 - $7.28

Q2 2020

Shares 64,363 Value ($000) $303 Avg Close $4.42 Range $3.02 - $5.74

Q1 2020

Shares 60,182 Value ($000) $208 Avg Close $5.75 Range $2.19 - $7.93

Q4 2019

Shares 59,486 Value ($000) $422 Avg Close $6.42 Range $4.58 - $7.75

Q3 2019

Shares 59,486 Value ($000) $299 Avg Close $5.20 Range $4.06 - $6.35

Q2 2019

Shares 45,955 Value ($000) $209 Avg Close $3.73 Range $2.51 - $4.85

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	110,093	$2,316	$18.51	$13.13 - $22.66
Q3 2025	110,496	$1,607	$13.92	$10.11 - $16.70
Q2 2025	98,441	$1,093	$11.49	$8.81 - $13.14
Q1 2025	98,441	$998	$10.73	$8.82 - $12.79
Q4 2024	98,441	$904	$7.98	$4.88 - $10.63
Q3 2024	99,027	$551	$7.68	$5.28 - $11.97
Q2 2024	94,663	$989	$11.64	$9.25 - $14.54
Q1 2024	95,089	$1,311	$14.83	$12.71 - $17.34
Q4 2023	99,153	$1,498	$11.95	$8.66 - $15.48
Q3 2023	85,748	$1,112	$15.66	$12.08 - $19.14
Q2 2023	84,298	$1,516	$15.57	$14.10 - $18.59
Q1 2023	91,554	$1,428	$14.14	$11.47 - $16.34
Q4 2022	92,594	$1,144	$10.08	$8.58 - $12.38
Q3 2022	89,903	$786	$7.91	$5.73 - $9.81
Q2 2022	90,232	$590	$9.21	$6.16 - $13.65
Q1 2022	85,946	$988	$10.81	$9.06 - $13.37
Q4 2021	93,256	$1,066	$11.81	$10.31 - $13.94
Q3 2021	89,836	$1,095	$13.95	$11.61 - $16.47
Q2 2021	94,842	$1,453	$15.43	$13.33 - $18.00
Q1 2021	83,033	$1,311	$15.74	$12.96 - $19.36
Q4 2020	83,284	$1,209	$10.56	$6.11 - $14.97
Q3 2020	67,637	$449	$5.64	$4.31 - $7.28
Q2 2020	64,363	$303	$4.42	$3.02 - $5.74
Q1 2020	60,182	$208	$5.75	$2.19 - $7.93
Q4 2019	59,486	$422	$6.42	$4.58 - $7.75
Q3 2019	59,486	$299	$5.20	$4.06 - $6.35
Q2 2019	45,955	$209	$3.73	$2.51 - $4.85