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ACM RESEARCH-A (ACMR)
NASDAQ
$98.87-$4.30 (-4.17%)
Price as of Jun 23, 2026 3:46 PM EDT- $6.6BMarket Cap
- 318.03%1-Year Change
- Semiconductor Equipment & MaterialsIndustry
ACM RESEARCH-A (ACMR)
$98.87-$4.30 (-4.17%)
Top Holders
Institutional
Mutual Funds
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
BLACKROCK, INC. | 12.45% | 8.0M | +96,367 (+1.21%) | Mar 31, 2026 |
VANGUARD GROUP INC | 7.75% | 5.0M | +125,690 (+2.53%) | Dec 31, 2025 |
BLACKROCK FUNDING, INC. /DE | 7.65% | 4.9M | +460,908 (+9.40%) | Dec 31, 2024 |
YIHENG CAPITAL LLC | 6.62% | 4.2M | +1.7M (+40.34%) | Dec 31, 2021 |
BLACKROCK INC. | 6.35% | 4.1M | +109,303 (+2.69%) | Jun 30, 2024 |
N/A | 3.53% | 2.3M | +2.3M (+100.00%) | Mar 31, 2026 |
STATE STREET CORP | 3.13% | 2.0M | +48,075 (+2.40%) | Mar 31, 2026 |
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
iSHARES TRUST | 8.53% | 5.5M | +16,417 (+0.30%) | Mar 31, 2026 |
VANGUARD INDEX FUNDS | 3.45% | 2.2M | +37,907 (+1.72%) | Mar 31, 2026 |
VANGUARD WORLD FUND | 2.07% | 1.3M | +32,577 (+2.46%) | Feb 28, 2026 |
INVESCO EXCHANGE-TRADED FUND TRUST | 1.72% | 1.1M | +1.0M (+94.94%) | Jan 31, 2026 |
Capitol Series Trust | 1.32% | 843,655 | 0 (0.00%) | Jan 31, 2026 |
SPDR SERIES TRUST | 1.23% | 790,074 | +37,829 (+4.79%) | Mar 31, 2026 |
FIDELITY CONCORD STREET TRUST | 0.77% | 492,685 | +11,010 (+2.23%) | Feb 28, 2026 |
Current Ownership Distribution
- Institutions629.9M (78.14%)
- Mutual Funds167.7M (20.80%)
- Insiders8.5M (1.06%)
- Other0 (0.00%)
Insider Transactions
- 1.06% (8.5M)Current InsiderOwnership (%, shares)
- 0Number of InsiderBuying (last 12 months)
- $0.00Amount of InsiderBuying (last 12 months)
- 7Number of InsiderSelling (last 12 months)
- $300.9MAmount of InsiderSelling (last 12 months)
Insider Name & Title | Type | Date
| Transaction Value | Shares | Share Price | Shares After Transactions |
|---|---|---|---|---|---|---|
Wang David H See Remarks | Exempt | Mar 12, 2026 | $0.00 | 50,000 | $0.00 | 370,002 |
Wang David H See Remarks | Exempt | Mar 12, 2026 | $50,000.00 | 50,000 | $1.00 | 852,708 |
Wang David H See Remarks | Sell | Mar 12, 2026 | $474,400.12 | 10,561 | $44.92 | 842,147 |
Wang David H See Remarks | Sell | Mar 12, 2026 | $1.8M | 38,737 | $45.74 | 803,410 |
Wang David H See Remarks | Sell | Mar 12, 2026 | $32,692.14 | 702 | $46.57 | 802,708 |
Liu Tracy | Exempt | Mar 11, 2026 | $0.00 | 15,000 | $0.00 | 0 |
Wang David H See Remarks | Exempt | Mar 11, 2026 | $0.00 | 60,000 | $0.00 | 420,002 |
Liu Tracy | Exempt | Mar 11, 2026 | $15,000.00 | 15,000 | $1.00 | 125,772 |
Wang David H See Remarks | Exempt | Mar 11, 2026 | $60,000.00 | 60,000 | $1.00 | 862,708 |
Liu Tracy | Sell | Mar 11, 2026 | $555,695.63 | 11,623 | $47.81 | 114,149 |
Wang David H See Remarks | Sell | Mar 11, 2026 | $2.7M | 55,373 | $47.89 | 807,335 |
Liu Tracy | Sell | Mar 11, 2026 | $162,940.25 | 3,377 | $48.25 | 110,772 |
Wang David H See Remarks | Sell | Mar 11, 2026 | $223,669.18 | 4,627 | $48.34 | 802,708 |
Liu Tracy | Exempt | Mar 10, 2026 | $45,000.00 | 45,000 | $1.00 | 155,772 |
Liu Tracy | Sell | Mar 10, 2026 | $1.5M | 32,216 | $47.06 | 123,556 |
Liu Tracy | Sell | Mar 10, 2026 | $616,060.96 | 12,784 | $48.19 | 110,772 |
Liu Tracy | Exempt | Mar 10, 2026 | $0.00 | 45,000 | $0.00 | 15,000 |
Dun Haiping | Exempt | Mar 09, 2026 | $0.00 | 5,000 | $0.00 | 55,000 |
Dun Haiping | Exempt | Mar 09, 2026 | $28,000.00 | 5,000 | $5.60 | 5,000 |
Dun Haiping | Sell | Mar 09, 2026 | $177,817.00 | 4,100 | $43.37 | 900 |
Dun Haiping | Sell | Mar 09, 2026 | $39,546.00 | 900 | $43.94 | 0 |
Feng Lisa See remarks | Exempt | Mar 06, 2026 | $0.00 | 15,000 | $0.00 | 0 |
Feng Lisa See remarks | Exempt | Mar 06, 2026 | $68,250.00 | 15,000 | $4.55 | 65,001 |
Feng Lisa See remarks | Sell | Mar 06, 2026 | $681,836.00 | 14,800 | $46.07 | 50,201 |
Feng Lisa See remarks | Sell | Mar 06, 2026 | $9,316.00 | 200 | $46.58 | 50,001 |
Pappis Charles C | Exempt | Mar 05, 2026 | $0.00 | 5,000 | $0.00 | 5,000 |
Feng Lisa See remarks | Exempt | Mar 05, 2026 | $0.00 | 15,000 | $0.00 | 0 |
Pappis Charles C | Exempt | Mar 05, 2026 | $145,900.00 | 5,000 | $29.18 | 5,000 |
Feng Lisa See remarks | Exempt | Mar 05, 2026 | $68,250.00 | 15,000 | $4.55 | 65,001 |
Pappis Charles C | Sell | Mar 05, 2026 | $250,450.00 | 5,000 | $50.09 | 0 |