ALPHATEC HLDGS INC

Ticker: ATEC CUSIP: 02081G201 Class: Com

CASTLEARK MANAGEMENT LLC's Holding History (CIK: 0001106832)

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

Q4 2025

Shares 296,160 Value ($000) $6,231 Avg Close $18.51 Range $13.13 - $22.66

Q1 2024

Shares 112,340 Value ($000) $1,549 Avg Close $14.83 Range $12.71 - $17.34

Q4 2023

Shares 203,773 Value ($000) $3,079 Avg Close $11.95 Range $8.66 - $15.48

Q3 2023

Shares 376,370 Value ($000) $4,882 Avg Close $15.66 Range $12.08 - $19.14

Q2 2023

Shares 380,590 Value ($000) $6,843 Avg Close $15.57 Range $14.10 - $18.59

Q1 2023

Shares 234,560 Value ($000) $3,659 Avg Close $14.14 Range $11.47 - $16.34

Q2 2022

Shares 142,982 Value ($000) $935 Avg Close $9.21 Range $6.16 - $13.65

Q3 2021

Shares 411,475 Value ($000) $5,016 Avg Close $13.95 Range $11.61 - $16.47

Q2 2021

Shares 454,725 Value ($000) $6,966 Avg Close $15.43 Range $13.33 - $18.00

Q1 2021

Shares 465,955 Value ($000) $7,357 Avg Close $15.74 Range $12.96 - $19.36

Q4 2020

Shares 423,230 Value ($000) $6,145 Avg Close $10.56 Range $6.11 - $14.97

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	296,160	$6,231	$18.51	$13.13 - $22.66
Q1 2024	112,340	$1,549	$14.83	$12.71 - $17.34
Q4 2023	203,773	$3,079	$11.95	$8.66 - $15.48
Q3 2023	376,370	$4,882	$15.66	$12.08 - $19.14
Q2 2023	380,590	$6,843	$15.57	$14.10 - $18.59
Q1 2023	234,560	$3,659	$14.14	$11.47 - $16.34
Q2 2022	142,982	$935	$9.21	$6.16 - $13.65
Q3 2021	411,475	$5,016	$13.95	$11.61 - $16.47
Q2 2021	454,725	$6,966	$15.43	$13.33 - $18.00
Q1 2021	465,955	$7,357	$15.74	$12.96 - $19.36
Q4 2020	423,230	$6,145	$10.56	$6.11 - $14.97