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© 2026 DataHeimdall. All rights reserved.Data sourced from SEC EDGAR public filings.
Insider Trades

ACMR

Superinvestors

Institutional investors holding ACMR

Consensus →
InvestorFundWeightSharesValueQuarter
Mason HawkinsLongleaf Partners – Southeastern Asset Management2.95%1,680,181$66.3M2025Q4
Dodge & CoxDodge & Cox0.00%112,392$4.4M2025Q4

Congressional Activity

Congressional data coming soon

Insider Activity

6

Total trades

$3.0M

Volume

1

Buys

3

Sells

Last trade: Dec 26, 2023

Insider Tradeslast 90 days

No insider trades in the last 90 days.

Congressional Tradeslast 90 days

Congressional trade data is being sourced and will appear here shortly.