InsidersTradesSigma
Total declarations
Company
▲ Purchases (0 ops.)
▼ Sales (23 ops.)
Insider track record
OtherDisclosed buys
0
Disclosed sells
23
Not enough buy signals with a settled T+90 horizon to measure a track record yet.
Signal history
Explore the complete record of transactions filed by Wang David H, See Remarks. Officer active across 1 company, notably ACM Research, Inc.. Cumulatively, 37 filings have been recorded. Split: 0 buy · 23 sells. Total volume traded: €20.9m. History available since 4 September 2023. The latest transaction was disclosed on 3 June 2026 (Levée d'options). Regulator: SEC (Form 4). The full history is accessible without signup.
Companies and markets linked to Wang David H
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
Declarations37 total
60,000 shares@ US$1.000.0007% mcap0.2% of flowClass A Common StockSEC:0001140361-26-024280:0
4,300 shares@ US$87.570.0046% mcap1.5% of flowClass A Common StockSEC:0001140361-26-024280:1
6,295 shares@ US$88.980.0069% mcap2.2% of flowClass A Common StockSEC:0001140361-26-024280:2
32,450 shares@ US$89.840.036% mcap11.3% of flowClass A Common StockSEC:0001140361-26-024280:3
9,925 shares@ US$90.780.011% mcap3.5% of flowClass A Common StockSEC:0001140361-26-024280:4
5,843 shares@ US$92.380.0066% mcap2.1% of flowClass A Common StockSEC:0001140361-26-024280:5
1,187 shares@ US$93.040.0014% mcap0.4% of flowClass A Common StockSEC:0001140361-26-024280:6
40,002 shares@ US$1.000.0005% mcap0.2% of flowClass A Common StockSEC:0001140361-26-024280:7
2,060 shares@ US$83.860.0021% mcap0.7% of flowClass A Common StockSEC:0001140361-26-024280:8
17,543 shares@ US$85.110.018% mcap5.8% of flowClass A Common StockSEC:0001140361-26-024280:9
10,992 shares@ US$86.070.012% mcap3.7% of flowClass A Common StockSEC:0001140361-26-024280:10
8,581 shares@ US$87.130.0092% mcap2.9% of flowClass A Common StockSEC:0001140361-26-024280:11
826 shares@ US$87.910.0009% mcap0.3% of flowClass A Common StockSEC:0001140361-26-024280:12
60,000 shares@ US$1.000.0012% mcap15.0% of flowClass A Common StockSEC:0001140361-26-009401:0
70,000 shares@ US$1.000.0014% mcap17.5% of flowClass A Common StockSEC:0001140361-25-044559:0
130,000 shares@ US$1.000.8% of flowClass A Common StockSEC:0001140361-25-036835:0
70,000 shares@ US$1.000.0014% mcap17.5% of flowClass A Common StockSEC:0001140361-25-034208:0
70,000 shares@ US$1.000.4% of flowClass A Common StockSEC:0001140361-25-020348:0
56,250 shares@ US$26.579.5% of flowClass A Common StockSEC:0001140361-25-008688:0
210,000 shares@ US$0.500.7% of flowClass A Common StockSEC:0001140361-25-007209:0
56,250 shares@ US$17.446.4% of flowClass A Common StockSEC:0001140361-24-048306:0
46,766 shares@ US$17.805.5% of flowClass A Common StockSEC:0001140361-24-048076:0
56,250 shares@ US$19.087.1% of flowClass A Common StockSEC:0001140361-24-047887:0
270,000 shares@ US$0.500.9% of flowClass A Common StockSEC:0001140361-24-047168:0
45,000 shares@ US$22.626.5% of flowClass A Common StockSEC:0001140361-24-028376:0
25 of 37 declarations
About Wang David H
Wang David H is a declarant linked to ACM Research, Inc. (XNAS), with 37 filings in total. Across the 37 sampled filings, the recorded transactions are all sales, for a total of EUR 20921060, between 2023-09-06 and 2026-06-05. The largest individual filings show EUR 2510080.299910109 on 2026-06-05, EUR 1920448.786012479 on 2024-03-15, and EUR 1449121.31107193 on 2023-09-14.
