D. TROM

Business address
2900 University Blvd., Ames, IA, 50010
Top holdings (ownership)
WK
Get insider transactions for this reporting owner
D. TROM has filed 69 SEC EDGAR filings since 13 Feb 1998

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open Document Open Filing FORM 4 06 Sep 2022 01 Sep 2022 001-36773
4 Open Document Open Filing FORM 4 07 Feb 2022 03 Feb 2022 001-36773
4 Open Document Open Filing FORM 4 03 Feb 2022 01 Feb 2022 001-36773
4 Open Document Open Filing FORM 4 23 Nov 2021 23 Nov 2021 001-36773
4 Open Document Open Filing FORM 4 16 Nov 2021 16 Nov 2021 001-36773
4 Open Document Open Filing FORM 4 27 Oct 2021 25 Oct 2021 001-36773
4 Open Document Open Filing FORM 4 28 Sep 2021 24 Sep 2021 001-36773
4 Open Document Open Filing FORM 4 02 Sep 2021 01 Sep 2021 001-36773
4 Open Document Open Filing FORM 4 27 Aug 2021 25 Aug 2021 001-36773
SC 13G/A Open Document Open Filing SC 13G/A 18 Aug 2021
4 Open Document Open Filing FORM 4 17 Aug 2021 13 Aug 2021 001-36773
4 Open Document Open Filing FORM 4 11 Aug 2021 09 Aug 2021 001-36773
4 Open Document Open Filing FORM 4 26 Jul 2021 23 Jul 2021 001-36773
4 Open Document Open Filing FORM 4 28 Jun 2021 25 Jun 2021 001-36773
4 Open Document Open Filing FORM 4 22 Jun 2021 21 Jun 2021 001-36773
4 Open Document Open Filing FORM 4 27 May 2021 25 May 2021 001-36773
4 Open Document Open Filing FORM 4 27 Apr 2021 23 Apr 2021 001-36773
4 Open Document Open Filing FORM 4 26 Mar 2021 25 Mar 2021 001-36773
4 Open Document Open Filing FORM 4 16 Mar 2021 15 Mar 2021 001-36773
4 Open Document Open Filing FORM 4 26 Feb 2021 25 Feb 2021 001-36773
SC 13G/A Open Document Open Filing SC 13G/A 16 Feb 2021
4 Open Document Open Filing FORM 4 04 Feb 2021 03 Feb 2021 001-36773
4 Open Document Open Filing FORM 4 03 Feb 2021 01 Feb 2021 001-36773
4 Open Document Open Filing FORM 4 29 Dec 2020 28 Dec 2020 001-36773
4 Open Document Open Filing FORM 4 27 Nov 2020 25 Nov 2020 001-36773
4 Open Document Open Filing FORM 4 06 Nov 2020 05 Nov 2020 001-36773
4 Open Document Open Filing FORM 4 28 Oct 2020 26 Oct 2020 001-36773
4 Open Document Open Filing FORM 4 28 Sep 2020 25 Sep 2020 001-36773
4 Open Document Open Filing FORM 4 03 Sep 2020 01 Sep 2020 001-36773
SC 13G/A Open Document Open Filing SC 13G/A 13 Feb 2020
4 Open Document Open Filing FORM 4 05 Feb 2020 03 Feb 2020 001-36773
4 Open Document Open Filing FORM 4 22 Jan 2020 18 Jan 2020 001-36773
4 Open Document Open Filing FORM 4 13 Dec 2019 13 Dec 2019 001-36773
4 Open Document Open Filing FORM 4 06 Dec 2019 03 Dec 2019 001-36773
4 Open Document Open Filing FORM 4 16 Aug 2019 16 Aug 2019 001-36773
4 Open Document Open Filing FORM 4 24 Jul 2019 22 Jul 2019 001-36773
4/A Open Document Open Filing FORM 4/A 17 Jul 2019 19 Jun 2019 001-36773
4 Open Document Open Filing FORM 4 24 Jun 2019 20 Jun 2019 001-36773
4 Open Document Open Filing FORM 4 22 May 2019 20 May 2019 001-36773
4 Open Document Open Filing FORM 4 24 Apr 2019 22 Apr 2019 001-36773
4 Open Document Open Filing FORM 4 22 Mar 2019 20 Mar 2019 001-36773
4 Open Document Open Filing FORM 4 22 Feb 2019 20 Feb 2019 001-36773
SC 13G/A Open Document Open Filing SC 13G/A 13 Feb 2019
4 Open Document Open Filing FORM 4 05 Feb 2019 01 Feb 2019 001-36773
4 Open Document Open Filing FORM 4 23 Jan 2019 18 Jan 2019 001-36773
4 Open Document Open Filing FORM 4 21 Dec 2018 20 Dec 2018 001-36773
4 Open Document Open Filing FORM 4 21 Nov 2018 20 Nov 2018 001-36773
4 Open Document Open Filing FORM 4 13 Nov 2018 08 Nov 2018 001-36773
4 Open Document Open Filing FORM 4 06 Sep 2018 04 Sep 2018 001-36773
4 Open Document Open Filing FORM 4 10 May 2018 08 May 2018 001-36773
SC 13G/A Open Document Open Filing SC 13G/A 14 Feb 2018
4 Open Document Open Filing FORM 4 07 Feb 2018 05 Feb 2018 001-36773
4 Open Document Open Filing FORM 4 05 Feb 2018 01 Feb 2018 001-36773
4 Open Document Open Filing FORM 4 22 Jan 2018 18 Jan 2018 001-36773
SC 13G/A Open Document Open Filing SC 13G/A 14 Feb 2017
4 Open Document Open Filing FORM 4 07 Feb 2017 06 Feb 2017 001-36773
4 Open Document Open Filing FORM 4 03 Feb 2017 01 Feb 2017 001-36773
4 Open Document Open Filing FORM 4 20 Jan 2017 18 Jan 2017 001-36773
SC 13G/A Open Document Open Filing SC 13G 16 Feb 2016
4 Open Document Open Filing FORM 4 09 Feb 2016 05 Feb 2016 001-36773
4 Open Document Open Filing FORM 4 02 Feb 2016 01 Feb 2016 001-36773
4 Open Document Open Filing FORM 4 21 Jan 2016 19 Jan 2016 001-36773
SC 13G Open Document Open Filing SC 13G 13 Feb 2015
4 Open Document Open Filing FORM 4 09 Feb 2015 05 Feb 2015 001-36773
3 Open Document Open Filing FORM 3 10 Dec 2014 10 Dec 2014 001-36773