InsidersTradesSigma
Total declarations
Company
▲ Purchases (0 ops.)
▼ Sales (23 ops.)
Insider track record
ExecutiveDisclosed buys
0
Disclosed sells
23
T+90 hit rate
42%
T+90 mean return
+4.0%
Across 19 buy signals with a settled T+90 return. Return basis: close on the day after publication.
Signal history
Browse the complete record of transactions filed by Dun Haiping, Director. Director active across 1 company, notably ACM Research, Inc.. In total, 44 disclosures have been recorded. Breakdown: 0 buy · 23 sells. Total volume traded: €6.7m. History available since 2 March 2022. The latest transaction was disclosed on 19 May 2026 (Levée d'options). Regulator: SEC (Form 4). The full history is accessible without signup.
Declarations44 total
5,000 shares@ US$5.600.0004% mcap0.3% of flowClass A Common StockSEC:0001140361-26-022458:0
1,333 shares@ US$63.840.0011% mcap1.0% of flowClass A Common StockSEC:0001140361-26-022458:1
500 shares@ US$65.090.0004% mcap0.4% of flowClass A Common StockSEC:0001140361-26-022458:2
1,309 shares@ US$67.210.0012% mcap1.1% of flowClass A Common StockSEC:0001140361-26-022458:3
1,858 shares@ US$67.540.0017% mcap1.5% of flowClass A Common StockSEC:0001140361-26-022458:4
5,000 shares@ US$5.600.0004% mcap4.0% of flowClass A Common StockSEC:0001140361-26-009039
5,000 shares@ US$5.600.0006% mcap4.0% of flowClass A Common StockSEC:0001140361-26-009039:0
2,456 shares@ US$28.320.9% of flowClass A Common StockSEC:0001140361-25-009327:0
7,062 shares@ US$29.232.7% of flowClass A Common StockSEC:0001140361-25-009327:1
15,001 shares@ US$26.545.2% of flowClass A Common StockSEC:0001140361-25-008444:0
25,001 shares@ US$0.500.2% of flowClass A Common StockSEC:0001140361-25-007211:0
19,058 shares@ US$17.434.4% of flowClass A Common StockSEC:0001140361-24-048310:0
15,000 shares@ US$19.123.9% of flowClass A Common StockSEC:0001140361-24-047888:0
35,000 shares@ US$0.500.2% of flowClass A Common StockSEC:0001140361-24-047169:0
19,097 shares@ US$18.084.4% of flowClass A Common StockSEC:0001140361-24-039942:0
15,000 shares@ US$19.853.8% of flowClass A Common StockSEC:0001140361-24-038571:0
35,000 shares@ US$0.500.2% of flowClass A Common StockSEC:0001140361-24-037711:0
100,000 shares0Class A Common StockSEC:0001140361-24-031967:0
19,239 shares@ US$22.635.7% of flowClass A Common StockSEC:0001140361-24-028379:0
15,000 shares@ US$22.884.5% of flowClass A Common StockSEC:0001140361-24-027457:0
35,000 shares@ US$0.500.2% of flowClass A Common StockSEC:0001140361-24-026364:0
15,877 shares@ US$27.565.6% of flowClass A Common StockSEC:0001140361-24-013646:0
15,000 shares@ US$30.365.9% of flowClass A Common StockSEC:0001140361-24-012896:0
35,000 shares@ US$0.500.2% of flowClass A Common StockSEC:0001140361-24-011554:0
566 shares@ US$30.920.2% of flowClass A Common StockSEC:0001140361-24-011554:1
25 of 44 declarations
About Dun Haiping
Dun Haiping is a director at ACM Research, Inc.
