Follow the people · Insider
Mark McKechnie
Mark McKechnie files insider transactions with the SEC as an officer of ACM Research (ACMR). We hold 2 disclosed purchases and sales filed since 6 November 2019, 1 of them in the last 90 days.
- Files forACMR
- Disclosed buys and sells2 in all, 1 in the last 90 days
- Last disclosure21 August 2026
Positions held
1 post we hold — a term names its own dates; a run of filings only says when they filed- Filed 4 November 2019 — 20 August 2026Officer · ACM Research (ACMR)104 Form 4 lines · source: SEC Form 4
Everything they disclosed
104 entries, newest first — one per disclosure report, one per Form 4 line- exercised options over 30,199 shares of ACM ResearchSEC Form 421 August 2026Class A Common Stock · traded 20 August 2026 · filed 21 August 2026
- exercised options over 25,000 shares of ACM ResearchSEC Form 421 August 2026Class A Common Stock · traded 20 August 2026 · filed 21 August 2026
- ▼ sold on the open market 13,625 shares of ACM ResearchSEC Form 421 August 2026Class A Common Stock · traded 20 August 2026 · filed 21 August 2026
- ▼ sold on the open market 30,365 shares of ACM ResearchSEC Form 421 August 2026Class A Common Stock · traded 20 August 2026 · filed 21 August 2026
- ▼ sold on the open market 11,209 shares of ACM ResearchSEC Form 421 August 2026Class A Common Stock · traded 20 August 2026 · filed 21 August 2026
- exercised options over 30,199 shares of ACM Research (a derivative holding)SEC Form 421 August 2026Stock Option · traded 20 August 2026 · filed 21 August 2026
- exercised options over 25,000 shares of ACM Research (a derivative holding)SEC Form 421 August 2026Stock Option · traded 20 August 2026 · filed 21 August 2026
- exercised options over 60,000 shares of ACM ResearchSEC Form 413 March 2026Class A Common Stock · traded 12 March 2026 · filed 13 March 2026
- exercised options over 38,551 shares of ACM Research (a derivative holding)SEC Form 413 March 2026Stock Option · traded 12 March 2026 · filed 13 March 2026
- ▼ sold on the open market 11,910 shares of ACM ResearchSEC Form 413 March 2026Class A Common Stock · traded 12 March 2026 · filed 13 March 2026
- ▼ sold on the open market 47,108 shares of ACM ResearchSEC Form 413 March 2026Class A Common Stock · traded 12 March 2026 · filed 13 March 2026
- exercised options over 60,000 shares of ACM Research (a derivative holding)SEC Form 413 March 2026Stock Option · traded 12 March 2026 · filed 13 March 2026
- exercised options over 38,551 shares of ACM Research (a derivative holding)SEC Form 413 March 2026Stock Option · traded 12 March 2026 · filed 13 March 2026
- ▼ sold on the open market 982 shares of ACM ResearchSEC Form 413 March 2026Class A Common Stock · traded 12 March 2026 · filed 13 March 2026
- exercised options over 38,551 shares of ACM ResearchSEC Form 413 March 2026Class A Common Stock · traded 12 March 2026 · filed 13 March 2026
- ▼ sold on the open market 8,639 shares of ACM ResearchSEC Form 413 March 2026Class A Common Stock · traded 12 March 2026 · filed 13 March 2026
- ▼ sold on the open market 29,348 shares of ACM ResearchSEC Form 413 March 2026Class A Common Stock · traded 12 March 2026 · filed 13 March 2026
- ▼ sold on the open market 564 shares of ACM ResearchSEC Form 413 March 2026Class A Common Stock · traded 12 March 2026 · filed 13 March 2026
- exercised options over 60,000 shares of ACM ResearchSEC Form 413 March 2026Class A Common Stock · traded 12 March 2026 · filed 13 March 2026
- ▼ sold on the open market 11,910 shares of ACM ResearchSEC Form 413 March 2026Class A Common Stock · traded 12 March 2026 · filed 13 March 2026
- ▼ sold on the open market 47,108 shares of ACM ResearchSEC Form 413 March 2026Class A Common Stock · traded 12 March 2026 · filed 13 March 2026
- ▼ sold on the open market 982 shares of ACM ResearchSEC Form 413 March 2026Class A Common Stock · traded 12 March 2026 · filed 13 March 2026
- exercised options over 38,551 shares of ACM ResearchSEC Form 413 March 2026Class A Common Stock · traded 12 March 2026 · filed 13 March 2026
- ▼ sold on the open market 8,639 shares of ACM ResearchSEC Form 413 March 2026Class A Common Stock · traded 12 March 2026 · filed 13 March 2026
- ▼ sold on the open market 29,348 shares of ACM ResearchSEC Form 413 March 2026Class A Common Stock · traded 12 March 2026 · filed 13 March 2026
- ▼ sold on the open market 564 shares of ACM ResearchSEC Form 413 March 2026Class A Common Stock · traded 12 March 2026 · filed 13 March 2026
- exercised options over 60,000 shares of ACM Research (a derivative holding)SEC Form 413 March 2026Stock Option · traded 12 March 2026 · filed 13 March 2026
- exercised options over 8,750 shares of ACM Research (a derivative holding)SEC Form 48 December 2025Stock Option · traded 4 December 2025 · filed 8 December 2025
- exercised options over 22,500 shares of ACM Research (a derivative holding)SEC Form 48 December 2025Stock Option · traded 8 December 2025 · filed 8 December 2025
- exercised options over 8,750 shares of ACM ResearchSEC Form 48 December 2025Class A Common Stock · traded 4 December 2025 · filed 8 December 2025
- ▼ sold on the open market 7,754 shares of ACM ResearchSEC Form 48 December 2025Class A Common Stock · traded 4 December 2025 · filed 8 December 2025
- ▼ sold on the open market 996 shares of ACM ResearchSEC Form 48 December 2025Class A Common Stock · traded 4 December 2025 · filed 8 December 2025
- exercised options over 22,500 shares of ACM ResearchSEC Form 48 December 2025Class A Common Stock · traded 8 December 2025 · filed 8 December 2025
- ▼ sold on the open market 22,500 shares of ACM ResearchSEC Form 48 December 2025Class A Common Stock · traded 8 December 2025 · filed 8 December 2025
- exercised options over 15,000 shares of ACM Research (a derivative holding)SEC Form 416 May 2025Stock Option · traded 14 May 2025 · filed 16 May 2025
- exercised options over 15,000 shares of ACM ResearchSEC Form 416 May 2025Class A Common Stock · traded 14 May 2025 · filed 16 May 2025
- ▼ sold on the open market 15,000 shares of ACM ResearchSEC Form 416 May 2025Class A Common Stock · traded 14 May 2025 · filed 16 May 2025
- exercised options over 15,000 shares of ACM Research (a derivative holding)SEC Form 414 March 2025Stock Option · traded 12 March 2025 · filed 14 March 2025
- exercised options over 15,000 shares of ACM ResearchSEC Form 414 March 2025Class A Common Stock · traded 12 March 2025 · filed 14 March 2025
- ▼ sold on the open market 15,000 shares of ACM ResearchSEC Form 414 March 2025Class A Common Stock · traded 12 March 2025 · filed 14 March 2025
- exercised options over 15,000 shares of ACM Research (a derivative holding)SEC Form 410 February 2025Stock Option · traded 6 February 2025 · filed 10 February 2025
- exercised options over 15,000 shares of ACM ResearchSEC Form 410 February 2025Class A Common Stock · traded 6 February 2025 · filed 10 February 2025
- ▼ sold on the open market 15,000 shares of ACM ResearchSEC Form 410 February 2025Class A Common Stock · traded 6 February 2025 · filed 10 February 2025
- exercised options over 16,516 shares of ACM Research (a derivative holding)SEC Form 48 October 2024Stock Option · traded 4 October 2024 · filed 8 October 2024
- exercised options over 16,516 shares of ACM ResearchSEC Form 48 October 2024Class A Common Stock · traded 4 October 2024 · filed 8 October 2024
- ▼ sold on the open market 16,516 shares of ACM ResearchSEC Form 48 October 2024Class A Common Stock · traded 4 October 2024 · filed 8 October 2024
- exercised options over 14,016 shares of ACM Research (a derivative holding)SEC Form 47 June 2024Stock Option · traded 6 June 2024 · filed 7 June 2024
- exercised options over 5,984 shares of ACM Research (a derivative holding)SEC Form 47 June 2024Stock Option · traded 6 June 2024 · filed 7 June 2024
- exercised options over 14,016 shares of ACM ResearchSEC Form 47 June 2024Class A Common Stock · traded 6 June 2024 · filed 7 June 2024
- ▼ sold on the open market 14,016 shares of ACM ResearchSEC Form 47 June 2024Class A Common Stock · traded 6 June 2024 · filed 7 June 2024
- exercised options over 5,984 shares of ACM ResearchSEC Form 47 June 2024Class A Common Stock · traded 6 June 2024 · filed 7 June 2024
- ▼ sold on the open market 5,984 shares of ACM ResearchSEC Form 47 June 2024Class A Common Stock · traded 6 June 2024 · filed 7 June 2024
- exercised options over 10,000 shares of ACM Research (a derivative holding)SEC Form 416 January 2024Stock Option · traded 12 January 2024 · filed 16 January 2024
- exercised options over 10,000 shares of ACM ResearchSEC Form 416 January 2024Class A Common Stock · traded 12 January 2024 · filed 16 January 2024
- ▼ sold on the open market 10,000 shares of ACM ResearchSEC Form 416 January 2024Class A Common Stock · traded 12 January 2024 · filed 16 January 2024
- exercised options over 11,250 shares of ACM Research (a derivative holding)SEC Form 413 October 2023Stock Option · traded 11 October 2023 · filed 13 October 2023
- exercised options over 11,250 shares of ACM ResearchSEC Form 413 October 2023Class A Common Stock · traded 11 October 2023 · filed 13 October 2023
- ▼ sold on the open market 11,250 shares of ACM ResearchSEC Form 413 October 2023Class A Common Stock · traded 11 October 2023 · filed 13 October 2023
- exercised options over 30,000 shares of ACM Research (a derivative holding)SEC Form 45 September 2023Stock Option · traded 1 September 2023 · filed 5 September 2023
- exercised options over 30,000 shares of ACM ResearchSEC Form 45 September 2023Class A Common Stock · traded 1 September 2023 · filed 5 September 2023
- ▼ sold on the open market 30,000 shares of ACM ResearchSEC Form 45 September 2023Class A Common Stock · traded 1 September 2023 · filed 5 September 2023
- was granted 300,000 shares of ACM Research (a derivative holding)SEC Form 421 August 2023Stock Option · traded 10 August 2023 · filed 21 August 2023
- was granted 300,000 shares of ACM Research (a derivative holding)SEC Form 414 August 2023Stock Option · traded 10 August 2023 · filed 14 August 2023
- was granted 22,500 shares of ACM Research (a derivative holding)SEC Form 430 December 2022Stock Option · traded 28 December 2022 · filed 30 December 2022
- was granted 100,000 shares of ACM Research (a derivative holding)SEC Form 416 August 2022Stock Option · traded 12 August 2022 · filed 16 August 2022
- exercised options over 300 shares of ACM Research (a derivative holding)SEC Form 411 March 2022Stock Option · traded 9 March 2021 · filed 11 March 2022
- exercised options over 5,000 shares of ACM Research (a derivative holding)SEC Form 411 March 2022Stock Option · traded 10 March 2021 · filed 11 March 2022
- exercised options over 300 shares of ACM ResearchSEC Form 411 March 2022Class A Common Stock · traded 9 March 2022 · filed 11 March 2022
- exercised options over 5,000 shares of ACM ResearchSEC Form 411 March 2022Class A Common Stock · traded 10 March 2022 · filed 11 March 2022
- ▼ sold on the open market 1,100 shares of ACM ResearchSEC Form 411 March 2022Class A Common Stock · traded 10 March 2022 · filed 11 March 2022
- ▼ sold on the open market 400 shares of ACM ResearchSEC Form 411 March 2022Class A Common Stock · traded 10 March 2022 · filed 11 March 2022
- ▼ sold on the open market 700 shares of ACM ResearchSEC Form 411 March 2022Class A Common Stock · traded 10 March 2022 · filed 11 March 2022
- ▼ sold on the open market 1,035 shares of ACM ResearchSEC Form 411 March 2022Class A Common Stock · traded 10 March 2022 · filed 11 March 2022
- ▼ sold on the open market 588 shares of ACM ResearchSEC Form 411 March 2022Class A Common Stock · traded 10 March 2022 · filed 11 March 2022
- ▼ sold on the open market 400 shares of ACM ResearchSEC Form 411 March 2022Class A Common Stock · traded 10 March 2022 · filed 11 March 2022
- ▼ sold on the open market 399 shares of ACM ResearchSEC Form 411 March 2022Class A Common Stock · traded 10 March 2022 · filed 11 March 2022
- ▼ sold on the open market 378 shares of ACM ResearchSEC Form 411 March 2022Class A Common Stock · traded 10 March 2022 · filed 11 March 2022
- exercised options over 5,000 shares of ACM Research (a derivative holding)SEC Form 422 November 2021Stock Option · traded 18 November 2021 · filed 22 November 2021
- exercised options over 5,000 shares of ACM ResearchSEC Form 422 November 2021Class A Common Stock · traded 18 November 2021 · filed 22 November 2021
- ▼ sold on the open market 421 shares of ACM ResearchSEC Form 422 November 2021Class A Common Stock · traded 18 November 2021 · filed 22 November 2021
- ▼ sold on the open market 2,932 shares of ACM ResearchSEC Form 422 November 2021Class A Common Stock · traded 18 November 2021 · filed 22 November 2021
- ▼ sold on the open market 607 shares of ACM ResearchSEC Form 422 November 2021Class A Common Stock · traded 18 November 2021 · filed 22 November 2021
- ▼ sold on the open market 374 shares of ACM ResearchSEC Form 422 November 2021Class A Common Stock · traded 18 November 2021 · filed 22 November 2021
- ▼ sold on the open market 200 shares of ACM ResearchSEC Form 422 November 2021Class A Common Stock · traded 18 November 2021 · filed 22 November 2021
- ▼ sold on the open market 300 shares of ACM ResearchSEC Form 422 November 2021Class A Common Stock · traded 18 November 2021 · filed 22 November 2021
- ▼ sold on the open market 166 shares of ACM ResearchSEC Form 422 November 2021Class A Common Stock · traded 18 November 2021 · filed 22 November 2021
- exercised options over 5,000 shares of ACM Research (a derivative holding)SEC Form 420 August 2021Stock Option · traded 19 August 2021 · filed 20 August 2021
- exercised options over 5,000 shares of ACM ResearchSEC Form 420 August 2021Class A Common Stock · traded 19 August 2021 · filed 20 August 2021
- ▼ sold on the open market 4,274 shares of ACM ResearchSEC Form 420 August 2021Class A Common Stock · traded 19 August 2021 · filed 20 August 2021
- ▼ sold on the open market 526 shares of ACM ResearchSEC Form 420 August 2021Class A Common Stock · traded 19 August 2021 · filed 20 August 2021
- ▼ sold on the open market 200 shares of ACM ResearchSEC Form 420 August 2021Class A Common Stock · traded 19 August 2021 · filed 20 August 2021
- exercised options over 10,028 shares of ACM ResearchSEC Form 416 March 2021Class A Common Stock · traded 12 March 2021 · filed 16 March 2021
- ▼ sold on the open market 10,028 shares of ACM ResearchSEC Form 416 March 2021Class A Common Stock · traded 12 March 2021 · filed 16 March 2021
- exercised options over 10,028 shares of ACM Research (a derivative holding)SEC Form 416 March 2021Stock Option · traded 12 March 2021 · filed 16 March 2021
- exercised options over 7,500 shares of ACM Research (a derivative holding)SEC Form 420 November 2020Stock Option · traded 19 November 2020 · filed 20 November 2020
- exercised options over 7,500 shares of ACM ResearchSEC Form 420 November 2020Class A Common Stock · traded 19 November 2020 · filed 20 November 2020
- ▼ sold on the open market 7,500 shares of ACM ResearchSEC Form 420 November 2020Class A Common Stock · traded 19 November 2020 · filed 20 November 2020
- exercised options over 4,585 shares of ACM Research (a derivative holding)SEC Form 431 August 2020Stock Option · traded 27 August 2020 · filed 31 August 2020
- exercised options over 4,585 shares of ACM ResearchSEC Form 431 August 2020Class A Common Stock · traded 27 August 2020 · filed 31 August 2020
- ▼ sold on the open market 4,585 shares of ACM ResearchSEC Form 431 August 2020Class A Common Stock · traded 27 August 2020 · filed 31 August 2020
- exercised options over 5,415 shares of ACM Research (a derivative holding)SEC Form 417 June 2020Stock Option · traded 15 June 2020 · filed 17 June 2020
- exercised options over 5,415 shares of ACM ResearchSEC Form 417 June 2020Class A Common Stock · traded 15 June 2020 · filed 17 June 2020
- ▼ sold on the open market 5,415 shares of ACM ResearchSEC Form 417 June 2020Class A Common Stock · traded 15 June 2020 · filed 17 June 2020
- was granted 20,000 shares of ACM Research (a derivative holding)SEC Form 46 November 2019Stock Option · traded 4 November 2019 · filed 6 November 2019
Positions come from the unitedstates/congress-legislators roster, the Office of Government Ethics and the SEC’s Form 4 index. Every disclosed line names its own source and links the document the government published; we print what the filing says and never a price we did not read from it. Headlines and links come from the GDELT Global Knowledge Graph — the story stays with the publisher. The portrait, where we have one, is the public-domain Congressional Bioguide photograph.