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Sotheara Cheav

ACMR
SEE REMARKS · ACM RESEARCH, INC. · CIK 0001721279
FILING MIX · LIFETIME28%/72%
BUYS
19
SELLS
50
TOTAL VALUE
$11.93M
COMPANIES
1
ACTIVE SINCE
Sep 2020
HOLDINGS NOW
100,002
AVG SELL PX
$43.66
TRADE KIND
SHOWING 69 / 69
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
20 backtested trades · 8 horizons · 5 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Sotheara Cheav, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d20+50.00%-0.73%-0.15%-0.58%+0.07%—
14d20+65.00%-1.05%-0.66%-0.39%-2.00%—
30d20+55.00%-1.86%-0.14%-1.72%-4.24%—
60d20+65.00%-9.84%-0.41%-9.42%-12.82%—
90d20+55.00%-3.05%+3.45%-6.50%-5.54%—
180d20+45.00%+7.73%+7.74%-0.01%-0.65%—
1y20(2 pending)+50.00%+11.46%+16.68%-5.22%-20.94%—
2y20(3 pending)+47.06%+2.44%+24.20%-21.76%-24.67%—
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
ACMR · 100,002 shares · as of Jun 5, 2026
037,25174,501111,752149,002202120222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 19 buys / 50 sellsCOVERAGE · 24 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
ACMR
ACM RESEARCH, INC.
SALE10b5-1
10b5-1 plan
2,384$81.73$194.8K103,017Jun 5, 2026Jun 5, 2026 ↗View →
ACMR
ACM RESEARCH, INC.
PURCHASE
See remarks
5,399$13.89$75.0K105,401Jun 5, 2026Jun 5, 2026 ↗View →
ACMR
ACM RESEARCH, INC.
SALE10b5-1
10b5-1 plan
968$82.61$80.0K102,049Jun 5, 2026Jun 5, 2026 ↗View →
ACMR
ACM RESEARCH, INC.
SALE10b5-1
10b5-1 plan
1,647$85.41$140.7K100,002Jun 5, 2026Jun 5, 2026 ↗View →
ACMR
ACM RESEARCH, INC.
SALE10b5-1
10b5-1 plan
400$84.01$33.6K101,649Jun 5, 2026Jun 5, 2026 ↗View →
ACMR
ACM RESEARCH, INC.
SALE
See remarks
5,399——37,500Jun 5, 2026Jun 5, 2026 ↗View →
ACMR
ACM RESEARCH, INC.
SALE10b5-1
10b5-1 plan
2,839$85.77$243.5K100,002Jun 4, 2026Jun 5, 2026 ↗View →
ACMR
ACM RESEARCH, INC.
PURCHASE
See remarks
13,351$13.89$185.4K113,353Jun 4, 2026Jun 5, 2026 ↗View →
ACMR
ACM RESEARCH, INC.
SALE10b5-1
10b5-1 plan
1,300$84.08$109.3K112,053Jun 4, 2026Jun 5, 2026 ↗View →
ACMR
ACM RESEARCH, INC.
SALE10b5-1
10b5-1 plan
9,212$85.11$784.0K102,841Jun 4, 2026Jun 5, 2026 ↗View →
ACMR
ACM RESEARCH, INC.
SALE
See remarks
13,351——42,899Jun 4, 2026Jun 5, 2026 ↗View →
ACMR
ACM RESEARCH, INC.
PURCHASE
See remarks
10,000$13.89$138.9K110,002Sep 18, 2025Sep 19, 2025 ↗View →
ACMR
ACM RESEARCH, INC.
SALE10b5-1
10b5-1 plan
10,000$35.00$350.0K100,002Sep 18, 2025Sep 19, 2025 ↗View →
ACMR
ACM RESEARCH, INC.
SALE
See remarks
10,000——56,250Sep 18, 2025Sep 19, 2025 ↗View →
ACMR
ACM RESEARCH, INC.
SALE
See remarks
11,152——66,250Aug 22, 2025Aug 26, 2025 ↗View →
ACMR
ACM RESEARCH, INC.
PURCHASE
See remarks
11,152$13.89$154.9K111,154Aug 22, 2025Aug 26, 2025 ↗View →
ACMR
ACM RESEARCH, INC.
SALE10b5-1
10b5-1 plan
11,152$30.00$334.6K100,002Aug 22, 2025Aug 26, 2025 ↗View →
ACMR
ACM RESEARCH, INC.
PURCHASE
See remarks
10,000$13.89$138.9K110,002Feb 6, 2025Feb 10, 2025 ↗View →
ACMR
ACM RESEARCH, INC.
SALE10b5-1
10b5-1 plan
22,598$23.00$519.8K100,002Feb 6, 2025Feb 10, 2025 ↗View →
ACMR
ACM RESEARCH, INC.
SALE
See remarks
12,598——77,402Feb 6, 2025Feb 10, 2025 ↗View →
ACMR
ACM RESEARCH, INC.
PURCHASE
See remarks
12,598$13.89$175.0K122,600Feb 6, 2025Feb 10, 2025 ↗View →
ACMR
ACM RESEARCH, INC.
SALE
See remarks
10,000——90,000Feb 6, 2025Feb 10, 2025 ↗View →
ACMR
ACM RESEARCH, INC.
SALE10b5-1
10b5-1 plan
2,617$27.49$71.9K102,385Mar 14, 2024Mar 15, 2024 ↗View →
ACMR
ACM RESEARCH, INC.
SALE10b5-1
10b5-1 plan
2,383$28.32$67.5K100,002Mar 14, 2024Mar 15, 2024 ↗View →
ACMR
ACM RESEARCH, INC.
SALE10b5-1
10b5-1 plan
5,000$29.09$145.4K105,002Mar 13, 2024Mar 15, 2024 ↗View →
ACMR
ACM RESEARCH, INC.
PURCHASE
See remarks
12,500$4.62$57.8K136,002Nov 13, 2023Nov 15, 2023 ↗View →
ACMR
ACM RESEARCH, INC.
SALE10b5-1
10b5-1 plan
26,000$16.79$436.5K110,002Nov 13, 2023Nov 15, 2023 ↗View →
ACMR
ACM RESEARCH, INC.
SALE
See remarks
12,500——0Nov 13, 2023Nov 15, 2023 ↗View →
ACMR
ACM RESEARCH, INC.
PURCHASE
See remarks
13,500$5.33$72.0K123,502Nov 13, 2023Nov 15, 2023 ↗View →
ACMR
ACM RESEARCH, INC.
SALE
See remarks
13,500——0Nov 13, 2023Nov 15, 2023 ↗View →
ACMR
ACM RESEARCH, INC.
SALEGRANT
Stock grant
100,000——100,000Aug 10, 2023Aug 14, 2023 ↗View →
ACMR
ACM RESEARCH, INC.
SALEGRANT
Stock grant
100,000——100,000Aug 10, 2023Aug 21, 2023 ↗View →
ACMR
ACM RESEARCH, INC.
SALE
See remarks
39,000$10.00$390.0K110,002Jun 6, 2023Jun 8, 2023 ↗View →
ACMR
ACM RESEARCH, INC.
SALE
See remarks
16,500——13,500Jun 6, 2023Jun 8, 2023 ↗View →
ACMR
ACM RESEARCH, INC.
PURCHASE
See remarks
22,500$4.62$104.0K132,502Jun 6, 2023Jun 8, 2023 ↗View →
ACMR
ACM RESEARCH, INC.
PURCHASE
See remarks
16,500$5.33$87.9K149,002Jun 6, 2023Jun 8, 2023 ↗View →
ACMR
ACM RESEARCH, INC.
SALE
See remarks
10,000$17.50$175.0K110,002Aug 18, 2022Aug 22, 2022 ↗View →
ACMR
ACM RESEARCH, INC.
SALE
See remarks
5,818$18.29$106.4K120,002Aug 17, 2022Aug 18, 2022 ↗View →
ACMR
ACM RESEARCH, INC.
SALE
See remarks
9,182$17.50$160.7K125,820Aug 17, 2022Aug 18, 2022 ↗View →
ACMR
ACM RESEARCH, INC.
PURCHASE
See remarks
5,000$4.62$23.1K135,002Aug 17, 2022Aug 18, 2022 ↗View →
ACMR
ACM RESEARCH, INC.
SALE
See remarks
5,000——35,000Aug 17, 2022Aug 18, 2022 ↗View →
ACMR
ACM RESEARCH, INC.
SALE
See remarks
5,000$19.42$97.1K130,002Aug 16, 2022Aug 18, 2022 ↗View →
ACMR
ACM RESEARCH, INC.
PURCHASE
See remarks
5,000$4.62$23.1K135,002Aug 16, 2022Aug 18, 2022 ↗View →
ACMR
ACM RESEARCH, INC.
SALE
See remarks
5,000——40,000Aug 16, 2022Aug 18, 2022 ↗View →
ACMR
ACM RESEARCH, INC.
SALE
See remarks
22,500——12,500Jun 6, 2022Jun 8, 2023 ↗View →
ACMR
ACM RESEARCH, INC.
SALE
See remarks
13,111$86.64$1.14M43,334Apr 9, 2021Apr 12, 2021 ↗View →
ACMR
ACM RESEARCH, INC.
PURCHASE
See remarks
5,000$13.85$69.3K61,445Apr 8, 2021Apr 12, 2021 ↗View →
ACMR
ACM RESEARCH, INC.
SALE
See remarks
5,000$88.66$443.3K56,445Apr 8, 2021Apr 12, 2021 ↗View →
ACMR
ACM RESEARCH, INC.
SALE
See remarks
5,000——15,000Apr 8, 2021Apr 12, 2021 ↗View →
ACMR
ACM RESEARCH, INC.
SALE
See remarks
13,334——0Apr 5, 2021Apr 5, 2021 ↗View →
ACMR
ACM RESEARCH, INC.
SALE
See remarks
223$90.08$20.1K56,445Apr 5, 2021Apr 5, 2021 ↗View →
ACMR
ACM RESEARCH, INC.
PURCHASE
See remarks
13,334$1.50$20.0K56,668Apr 5, 2021Apr 5, 2021 ↗View →
ACMR
ACM RESEARCH, INC.
PURCHASE
See remarks
10,000$13.85$138.5K53,334Mar 16, 2021Mar 16, 2021 ↗View →
ACMR
ACM RESEARCH, INC.
SALE
See remarks
10,000——20,000Mar 16, 2021Mar 16, 2021 ↗View →
ACMR
ACM RESEARCH, INC.
SALE
See remarks
10,000$93.69$936.9K43,334Mar 16, 2021Mar 16, 2021 ↗View →
ACMR
ACM RESEARCH, INC.
SALE
See remarks
10,000——30,000Mar 15, 2021Mar 16, 2021 ↗View →
ACMR
ACM RESEARCH, INC.
PURCHASE
See remarks
10,000$13.85$138.5K53,334Mar 15, 2021Mar 16, 2021 ↗View →
ACMR
ACM RESEARCH, INC.
SALE
See remarks
10,000$91.67$916.7K43,334Mar 15, 2021Mar 16, 2021 ↗View →
ACMR
ACM RESEARCH, INC.
SALE
See remarks
9,670$88.07$851.6K43,334Nov 13, 2020Nov 16, 2020 ↗View →
ACMR
ACM RESEARCH, INC.
SALE
See remarks
10,000$88.63$886.3K53,004Nov 12, 2020Nov 16, 2020 ↗View →
ACMR
ACM RESEARCH, INC.
SALE
See remarks
330$91.00$30.0K63,004Nov 5, 2020Nov 9, 2020 ↗View →
ACMR
ACM RESEARCH, INC.
SALE
See remarks
20,000——13,334Nov 5, 2020Nov 9, 2020 ↗View →
ACMR
ACM RESEARCH, INC.
PURCHASE
See remarks
20,000$1.50$30.0K63,334Nov 5, 2020Nov 9, 2020 ↗View →
ACMR
ACM RESEARCH, INC.
SALE
See remarks
4,941——0Sep 14, 2020Sep 14, 2020 ↗View →
ACMR
ACM RESEARCH, INC.
PURCHASE
See remarks
4,941$0.75$3.7K48,275Sep 14, 2020Sep 14, 2020 ↗View →
ACMR
ACM RESEARCH, INC.
SALE
See remarks
4,941$66.70$329.6K43,334Sep 14, 2020Sep 14, 2020 ↗View →
ACMR
ACM RESEARCH, INC.
SALE
See remarks
5,000$60.75$303.8K43,334Sep 10, 2020Sep 14, 2020 ↗View →
ACMR
ACM RESEARCH, INC.
SALE
See remarks
5,000——4,941Sep 10, 2020Sep 14, 2020 ↗View →
ACMR
ACM RESEARCH, INC.
PURCHASE
See remarks
5,000$0.75$3.8K48,334Sep 10, 2020Sep 14, 2020 ↗View →
Other insiders · ACMR
Loading peer insiders…
About this filer
CIK 0001721279
ROLE
See remarks
PRIMARY
ACMR
COMPANIES
1
ACTIVE SINCE
Sep 2020
MARKETPEEL · /INSIDER/0001721279DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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