Robert W. McMahon

Business address
250 Campus Drive, Marlborough, MA, 01752
Top holdings (ownership)
A, WST, and OSUR
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Robert W. McMahon has filed 59 SEC EDGAR filings since 27 May 2014

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
144 Open Document Open Filing 09 Sep 2025
144 Open Document Open Filing 04 Sep 2025
144 Open Document Open Filing 29 Aug 2025
3 Open Document Open Filing PRIMARY DOCUMENT 12 Aug 2025 04 Aug 2025 001-08036
4 Open Document Open Filing PRIMARY DOCUMENT 12 Aug 2025 11 Aug 2025 001-08036
4 Open Document Open Filing STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 04 Aug 2025 31 Jul 2025 001-16537
4 Open Document Open Filing PRIMARY DOCUMENT 27 May 2025 22 May 2025 001-15405
4 Open Document Open Filing STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 15 May 2025 13 May 2025 001-16537
4 Open Document Open Filing PRIMARY DOCUMENT 06 Mar 2025 05 Mar 2025 001-15405
4 Open Document Open Filing 4 02 Dec 2024 27 Nov 2024 001-15405
4 Open Document Open Filing PRIMARY DOCUMENT 26 Nov 2024 22 Nov 2024 001-15405
4 Open Document Open Filing PRIMARY DOCUMENT 21 Nov 2024 19 Nov 2024 001-15405
4 Open Document Open Filing PRIMARY DOCUMENT 19 Nov 2024 15 Nov 2024 001-15405
4 Open Document Open Filing STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 16 May 2024 14 May 2024 001-16537
4/A Open Document Open Filing PRIMARY DOCUMENT 30 Nov 2023 14 Nov 2023 001-15405
4 Open Document Open Filing PRIMARY DOCUMENT 27 Nov 2023 22 Nov 2023 001-15405
4 Open Document Open Filing PRIMARY DOCUMENT 20 Nov 2023 17 Nov 2023 001-15405
4 Open Document Open Filing PRIMARY DOCUMENT 20 Nov 2023 16 Nov 2023 001-15405
4 Open Document Open Filing PRIMARY DOCUMENT 17 Nov 2023 15 Nov 2023 001-15405
4 Open Document Open Filing PRIMARY DOCUMENT 17 Nov 2023 14 Nov 2023 001-15405
4 Open Document Open Filing STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 01 Aug 2023 31 Jul 2023 001-16537
3 Open Document Open Filing INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES 01 Aug 2023 31 Jul 2023 001-16537
4 Open Document Open Filing PRIMARY DOCUMENT 21 Nov 2022 18 Nov 2022 001-15405
4 Open Document Open Filing PRIMARY DOCUMENT 21 Nov 2022 17 Nov 2022 001-15405
4 Open Document Open Filing PRIMARY DOCUMENT 18 Nov 2022 16 Nov 2022 001-15405
4 Open Document Open Filing PRIMARY DOCUMENT 17 Nov 2022 15 Nov 2022 001-15405
4 Open Document Open Filing PRIMARY DOCUMENT 15 Nov 2022 11 Nov 2022 001-15405
4 Open Document Open Filing PRIMARY DOCUMENT 05 Aug 2022 03 Aug 2022 001-15405
4 Open Document Open Filing FORM 4 SUBMISSION 23 Nov 2021 19 Nov 2021 001-15405
4 Open Document Open Filing PRIMARY DOCUMENT 19 Nov 2021 17 Nov 2021 001-15405
4 Open Document Open Filing PRIMARY DOCUMENT 18 Nov 2021 16 Nov 2021 001-15405
4 Open Document Open Filing PRIMARY DOCUMENT 16 Nov 2021 12 Nov 2021 001-15405
4 Open Document Open Filing PRIMARY DOCUMENT 05 Aug 2021 03 Aug 2021 001-15405
4 Open Document Open Filing PRIMARY DOCUMENT 23 Nov 2020 19 Nov 2020 001-15405
4 Open Document Open Filing PRIMARY DOCUMENT 19 Nov 2020 17 Nov 2020 001-15405
4 Open Document Open Filing PRIMARY DOCUMENT 17 Nov 2020 13 Nov 2020 001-15405
4 Open Document Open Filing PRIMARY DOCUMENT 05 Aug 2020 03 Aug 2020 001-15405
4 Open Document Open Filing PRIMARY DOCUMENT 21 Nov 2019 19 Nov 2019 001-15405
4 Open Document Open Filing PRIMARY DOCUMENT 15 Nov 2019 13 Nov 2019 001-15405
4 Open Document Open Filing PRIMARY DOCUMENT 05 Aug 2019 02 Aug 2019 001-15405
4 Open Document Open Filing PRIMARY DOCUMENT 15 Nov 2018 13 Nov 2018 001-15405
3 Open Document Open Filing PRIMARY DOCUMENT 05 Sep 2018 01 Sep 2018 001-15405
4 Open Document Open Filing PRIMARY DOCUMENT 03 Aug 2018 02 Aug 2018 001-36214
4 Open Document Open Filing PRIMARY DOCUMENT 30 May 2018 26 May 2018 001-36214
4 Open Document Open Filing PRIMARY DOCUMENT 09 Mar 2018 07 Mar 2018 001-36214
4 Open Document Open Filing PRIMARY DOCUMENT 18 Dec 2017 14 Dec 2017 001-36214
4 Open Document Open Filing PRIMARY DOCUMENT 05 Dec 2017 01 Dec 2017 001-36214
4 Open Document Open Filing PRIMARY DOCUMENT 09 Nov 2017 05 Nov 2017 001-36214
4 Open Document Open Filing PRIMARY DOCUMENT 31 May 2017 26 May 2017 001-36214
4 Open Document Open Filing PRIMARY DOCUMENT 09 Mar 2017 07 Mar 2017 001-36214
4 Open Document Open Filing PRIMARY DOCUMENT 05 Dec 2016 01 Dec 2016 001-36214
4 Open Document Open Filing PRIMARY DOCUMENT 08 Nov 2016 04 Nov 2016 001-36214
4 Open Document Open Filing PRIMARY DOCUMENT 31 May 2016 26 May 2016 001-36214
4 Open Document Open Filing PRIMARY DOCUMENT 09 Mar 2016 07 Mar 2016 001-36214
4 Open Document Open Filing PRIMARY DOCUMENT 09 Nov 2015 05 Nov 2015 001-36214
4 Open Document Open Filing PRIMARY DOCUMENT 28 May 2015 26 May 2015 001-36214
4 Open Document Open Filing PRIMARY DOCUMENT 12 Nov 2014 07 Nov 2014 001-36214
4 Open Document Open Filing PRIMARY DOCUMENT 27 May 2014 26 May 2014 001-36214
3 Open Document Open Filing PRIMARY DOCUMENT 27 May 2014 26 May 2014 001-36214