NASDAQ · ACMR
ACM Research, Inc.
Smart money pulse
What insiders and funds are doing
Mixed Insiders: as of Nov 12 Funds: as of Jun 30, 2026
- account_balance239 funds bought, 127 sold in the quarter ended Jun 30, 2026. 124 were new holders.
- infoNo real insider sales in 12 months. Planned 10b5-1 sales and tax withholding are left out.
Pulse runs from −100 (everyone selling) to +100 (everyone buying). Half comes from insiders: real buyers vs. real sellers in the last 90 days (Form 4). Half comes from funds: funds that bought vs. funds that sold last quarter (13F). 13F is a snapshot of long positions on the last day of the quarter, filed up to 45 days later. It does not show short positions or trades since then. This is data, not advice.
Who owns it
380 funds report owning ACMR , up from 301
New124
Added115
Held59
Trimmed82
Sold out45
Last quarter
Who bought and who sold
Change in shares held, biggest funds first. Bars stop at ±100%.
Insider trades · last 12 months
Real buys and sales
No insider filings loaded for the last 12 months.
Top holders
Biggest funds in ACMR
| Fund | Owns | Value | Change |
|---|---|---|---|
| BlackRock, Inc. | — | $1.1B | +8% |
| California State Teachers Retirement System | — | $59.7K | +11900% |
| Vanguard Portfolio Management LLC | — | $425M | +52% |
| Vanguard Capital Management LLC | — | $312M | +9% |
| Capital World Investors | — | $304M | New |
"Owns" is shares reported divided by shares outstanding.