Janney Montgomery Scott’s ACM Research ACMR Stock Holding History

Janney Montgomery Scott’s Portfolio ACMR Stock Details ACMR Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$431K	Buy	+3,396	New	+$240K	﹤0.01%	2499
2025 Q3	–	Sell	-38,858	Closed	-$1.01M	–	2852
2025 Q2	$1.01M	Buy	38,858 +12,468	+47%	+$280K	﹤0.01%	1575
2025 Q1	$616K	Sell	26,390 -44,265	-63%	-$1.01M	﹤0.01%	1844
2024 Q4	$1.07M	Buy	70,655 +18,617	+36%	+$336K	﹤0.01%	1499
2024 Q3	$1.06M	Buy	+52,038	New	+$998K	﹤0.01%	1471
2023 Q4	–	Sell	-51,363	Closed	-$930K	–	2621
2023 Q3	$930K	Sell	51,363 -20,605	-29%	-$306K	﹤0.01%	1380
2023 Q2	$941K	Sell	71,968 -903	-1%	-$9.51K	﹤0.01%	1451
2023 Q1	$853K	Sell	72,871 -28,766	-28%	-$333K	﹤0.01%	1405
2022 Q4	$784K	Buy	101,637 +56,259	+124%	+$477K	﹤0.01%	1498
2022 Q3	$565K	Buy	+45,378	New	+$738K	﹤0.01%	1625

Other funds holding ACMR

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

VARA

Value Aligned Research Advisors Princeton, New Jersey $40.1B AUM 376.19% 1-Year Est. Return

WFM Asia Road Town, Tortola, British Virgin Islands $663M AUM 15.46% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Janney Montgomery Scott's ACMR Position: Q2 2026 in Review

Janney Montgomery Scott opened a new position in ACM Research (ACMR) in Q2 2026: 3,396 shares worth $431K. The stake represents ﹤0.01% of the portfolio and ranks #2499 among its holdings. This is a return to the name: Janney Montgomery Scott previously reported a position in ACMR as recently as Q2 2025.

Janney Montgomery Scott first reported a position in ACMR in Q3 2022 and has held it in 10 quarters since. The position peaked at $1.07M in Q4 2024. 376 funds tracked by Wall St. Rank hold ACMR as of Q2 2026.

Janney Montgomery Scott held 3,396 shares of ACM Research worth $431K as of Q2 2026.
ACM Research was a new Janney Montgomery Scott position in Q2 2026.
ACM Research made up ﹤0.01% of Janney Montgomery Scott's portfolio in Q2 2026, its #2499 holding.
Janney Montgomery Scott first reported a position in ACM Research in Q3 2022 and has held it in 10 quarters since.
Janney Montgomery Scott's ACM Research position peaked at $1.07M in Q4 2024.
376 funds tracked by Wall St. Rank held ACM Research as of Q2 2026.

Based on Janney Montgomery Scott's 13F filing for Q2 2026, filed 5 Aug 2026.