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ACMR — structural market context

ACM Research, Inc.

Structural market context from public regulatory and market data, shown with its as-of dates. Descriptive only: nothing on this page is a recommendation, a prediction, or advice to buy or sell any security.

ACMR short interest & days to cover

SHARES SHORT
3.6M
% OF FLOAT
6.2%
DAYS TO COVER
3.4
CHANGE VS PRIOR
-7.9%

FINRA consolidated short interest, reported twice a month and published ~2 weeks after each settlement date. % of float uses reported free float. · as of 2026-07-31 (22d ago)

ACMR fails-to-deliver (FTD)

Settlement dateFailed sharesPrice
2026-07-21 · 32d77$82.52
2026-07-17 · 36d68$84.09
2026-07-06 · 47d959$97.77

SEC fails-to-deliver files, published twice a month with ~6 weeks of delay.

ACMR insider buying and selling (Form 4)

Last 12 months, open-market only: 0 purchases · 6 sales

InsiderTypeSharesValueFiled
McKechnie Mark · officer: See RemarksSell (S)14K$1.0M2026-08-21
McKechnie Mark · officer: See RemarksSell (S)30K$2.4M2026-08-21
McKechnie Mark · officer: See RemarksSell (S)11K$873K2026-08-21
Dun Haiping · directorSell (S)1K$96K2026-08-20
Dun Haiping · directorSell (S)3K$276K2026-08-20

SEC Form 4 filings, open-market purchases and sales only (codes P and S); grants and option exercises excluded. Attributed public records.

Frequently asked questions

What is ACMR's short interest?
As of the FINRA settlement date 2026-07-31, ACMR had 3.6M shares sold short — 6.2% of its float, with 3.4 days to cover at average volume. FINRA publishes this data roughly two weeks after each twice-monthly settlement, so it is inherently delayed. A short-interest figure describes an aggregate position; it does not predict what the stock will do.
Are insiders buying ACMR?
In the last 12 months of SEC Form 4 filings, ACMR recorded 0 open-market insider purchases and 6 open-market sales (codes P and S; grants and option exercises excluded). These are attributed public records — information, not instruction.
Is this page telling me to buy or sell ACMR?
No. Everything on this page is descriptive, structural market context from public data, shown with its as-of dates. TradeAI News does not issue directional recommendations, price predictions, or buy/sell advice — for any ticker.
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Not financial advice. Trading involves risk. Descriptive structural context, never a recommendation.