ACM RESH INC

Ticker: ACMR CUSIP: 00108J109 Class: Common Stock

Portolan Capital Management, LLC's Holding History (CIK: 0001350290)

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

Q4 2025

Shares 285,506 Value ($000) $11,263 Avg Close $37.26 Range $28.46 - $45.12

Q3 2025

Shares 405,860 Value ($000) $15,881 Avg Close $29.69 Range $23.03 - $40.10

Q3 2024

Shares 921,451 Value ($000) $18,705 Avg Close $19.17 Range $13.94 - $25.88

Q2 2024

Shares 855,835 Value ($000) $19,736 Avg Close $25.30 Range $20.30 - $33.40

Q1 2024

Shares 538,433 Value ($000) $15,690 Avg Close $22.89 Range $15.70 - $34.40

Q4 2023

Shares 799,504 Value ($000) $15,622 Avg Close $17.49 Range $12.53 - $21.07

Q1 2023

Shares 561,894 Value ($000) $6,574 Avg Close $11.57 Range $9.35 - $14.40

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	285,506	$11,263	$37.26	$28.46 - $45.12
Q3 2025	405,860	$15,881	$29.69	$23.03 - $40.10
Q3 2024	921,451	$18,705	$19.17	$13.94 - $25.88
Q2 2024	855,835	$19,736	$25.30	$20.30 - $33.40
Q1 2024	538,433	$15,690	$22.89	$15.70 - $34.40
Q4 2023	799,504	$15,622	$17.49	$12.53 - $21.07
Q1 2023	561,894	$6,574	$11.57	$9.35 - $14.40