SEC Filings for AmpliTech Group, Inc. (AMPG)

Last updated: 2026-03-26 21:10 UTC | Total filings: 374

Browse the latest SEC filings and forms submitted by AmpliTech Group, Inc. (AMPG). Access annual reports, quarterly statements, and other official disclosures.

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Form Filing Date Description Link
SCHEDULE 13G/A March 26, 2026 - View Document
10-K March 26, 2026 10-K View Document
8-K March 16, 2026 8-K View Document
25-NSE Feb. 18, 2026 - View Document
4 Feb. 3, 2026 4 View Document
4 Feb. 3, 2026 4 View Document
4 Feb. 3, 2026 4 View Document
8-A12B Feb. 2, 2026 8-A12B View Document
8-K Feb. 2, 2026 8-K View Document
CERT Feb. 2, 2026 - View Document
SCHEDULE 13G Jan. 30, 2026 - View Document
8-K Jan. 26, 2026 8-K View Document
424B5 Jan. 26, 2026 424B5 View Document
8-K Jan. 26, 2026 8-K View Document
4 Jan. 16, 2026 4 View Document
4 Jan. 16, 2026 - View Document
4 Jan. 16, 2026 4 View Document
4 Jan. 13, 2026 4 View Document
8-K Jan. 12, 2026 8-K View Document
8-K Jan. 5, 2026 8-K View Document
424B3 Jan. 5, 2026 424B3 View Document
424B3 Jan. 5, 2026 424B3 View Document
EFFECT Dec. 30, 2025 - View Document
EFFECT Dec. 30, 2025 - View Document
POS AM Dec. 22, 2025 POS AM View Document
POS AM Dec. 22, 2025 POS AM View Document
4 Dec. 15, 2025 4 View Document
8-K Dec. 15, 2025 8-K View Document
4 Dec. 15, 2025 - View Document
4 Dec. 15, 2025 - View Document
8-K Dec. 11, 2025 8-K View Document
FWP Dec. 8, 2025 FWP View Document
424B3 Dec. 8, 2025 424B3 View Document
10-Q Nov. 14, 2025 10-Q View Document
8-K Nov. 14, 2025 8-K View Document
8-K Nov. 12, 2025 8-K View Document
DEFA14A Nov. 3, 2025 DEFA14A View Document
8-K Nov. 3, 2025 8-K View Document
FWP Nov. 3, 2025 FWP View Document
424B5 Oct. 30, 2025 424B5 View Document
8-K Oct. 30, 2025 8-K View Document
8-K Oct. 27, 2025 8-K View Document
DEFA14A Oct. 16, 2025 DEFA14A View Document
DEF 14A Oct. 16, 2025 DEF 14A View Document
10-Q Aug. 14, 2025 10-Q View Document
8-K Aug. 14, 2025 8-K View Document
424B5 Aug. 5, 2025 424B5 View Document
EFFECT Aug. 4, 2025 - View Document
CORRESP July 31, 2025 - View Document
S-3/A July 31, 2025 S-3/A View Document
UPLOAD July 30, 2025 - View Document
DEL AM July 23, 2025 DEL AM View Document
S-3 July 22, 2025 S-3 View Document
8-K July 22, 2025 8-K View Document
8-K July 17, 2025 8-K View Document
4 June 20, 2025 - View Document
10-Q May 15, 2025 10-Q View Document
D May 7, 2025 - View Document
8-K April 30, 2025 8-K View Document
4 April 9, 2025 - View Document
10-K March 31, 2025 - View Document
8-K March 31, 2025 - View Document
424B5 March 24, 2025 - View Document
8-K March 24, 2025 - View Document
3 Jan. 24, 2025 PRIMARY DOCUMENT View Document
8-K Jan. 21, 2025 - View Document
SCHEDULE 13G/A Jan. 8, 2025 - View Document
8-K Jan. 2, 2025 - View Document
424B5 Dec. 30, 2024 - View Document
8-K Dec. 30, 2024 - View Document
8-K Dec. 30, 2024 - View Document
8-K Dec. 30, 2024 - View Document
424B5 Dec. 26, 2024 - View Document
8-K Dec. 26, 2024 - View Document
8-K Dec. 26, 2024 - View Document
4 Dec. 23, 2024 - View Document
4 Dec. 23, 2024 - View Document
4 Dec. 23, 2024 - View Document
8-K Dec. 20, 2024 - View Document
8-K Dec. 20, 2024 - View Document
8-K Dec. 17, 2024 - View Document
424B5 Dec. 17, 2024 - View Document
8-K Dec. 17, 2024 - View Document
424B5 Dec. 13, 2024 - View Document
8-K Dec. 13, 2024 - View Document
8-K Dec. 12, 2024 - View Document
424B5 Nov. 26, 2024 - View Document
8-K Nov. 26, 2024 - View Document
8-K Nov. 25, 2024 - View Document
10-Q Nov. 14, 2024 - View Document
DEFR14A Oct. 22, 2024 - View Document
DEF 14A Oct. 21, 2024 - View Document
DEFA14A Oct. 21, 2024 - View Document
4 Oct. 7, 2024 - View Document
4 Oct. 3, 2024 - View Document
8-K Oct. 1, 2024 - View Document
SC 13G Sept. 12, 2024 AMPG 13G View Document
8-K Sept. 11, 2024 - View Document
424B5 Sept. 11, 2024 - View Document
8-K Sept. 10, 2024 - View Document
4 Sept. 3, 2024 - View Document
4 Aug. 30, 2024 - View Document
8-K Aug. 26, 2024 - View Document
4 Aug. 21, 2024 - View Document
4 Aug. 21, 2024 - View Document
4 Aug. 21, 2024 - View Document
8-K Aug. 14, 2024 - View Document
10-Q Aug. 14, 2024 - View Document
8-K Aug. 1, 2024 - View Document
8-K July 29, 2024 - View Document
8-K July 18, 2024 - View Document
4 June 5, 2024 - View Document
4 June 4, 2024 - View Document
8-K May 30, 2024 - View Document
10-Q May 28, 2024 - View Document
8-K May 24, 2024 - View Document
NT 10-Q May 16, 2024 - View Document
8-K May 16, 2024 - View Document
EFFECT April 24, 2024 - View Document
CORRESP April 22, 2024 - View Document
S-3/A April 19, 2024 - View Document
UPLOAD April 18, 2024 - View Document
DEL AM April 15, 2024 - View Document
S-3 April 12, 2024 - View Document
10-K April 1, 2024 - View Document
8-K March 26, 2024 - View Document
S-8 Feb. 6, 2024 - View Document
4 Dec. 22, 2023 - View Document
4 Dec. 22, 2023 - View Document
4 Dec. 22, 2023 - View Document
8-K Dec. 12, 2023 FORM 8-K View Document
4 Nov. 17, 2023 FORM 4 View Document
10-Q Nov. 14, 2023 FORM 10-Q View Document
DEF 14A Oct. 23, 2023 DEF 14A View Document
4 Sept. 29, 2023 FORM 4 View Document
4 Aug. 22, 2023 FORM 4 View Document
4 Aug. 21, 2023 FORM 4 View Document
4 Aug. 21, 2023 FORM 4 View Document
4 Aug. 21, 2023 FORM 4 View Document
10-Q Aug. 14, 2023 FORM 10-Q View Document
10-K/A Aug. 9, 2023 FORM 10-K/A View Document
10-Q May 15, 2023 FORM 10-Q View Document
8-K April 17, 2023 FORM 8-K View Document
8-K March 31, 2023 FORM 8-K View Document
10-K March 31, 2023 FORM 10-K View Document
4 Dec. 22, 2022 FORM 4 View Document
4 Dec. 22, 2022 FORM 4 View Document
4 Dec. 22, 2022 FORM 4 View Document
4 Dec. 22, 2022 FORM 4 View Document
4 Dec. 22, 2022 FORM 4 View Document
4 Dec. 22, 2022 FORM 4 View Document
8-K Dec. 12, 2022 FORM 8-K View Document
8-K Dec. 9, 2022 FORM 8-K View Document
10-Q Nov. 14, 2022 FORM 10-Q View Document
DEF 14A Oct. 27, 2022 DEF 14A View Document
DEFA14A Oct. 27, 2022 DEFA14A View Document
4 Sept. 30, 2022 FORM 4 View Document
4 Sept. 20, 2022 FORM 4 View Document
4 Aug. 25, 2022 FORM 4 View Document
10-Q Aug. 15, 2022 FORM 10-Q View Document
EFFECT July 22, 2022 - View Document
CORRESP July 20, 2022 - View Document
CORRESP July 19, 2022 - View Document
UPLOAD July 18, 2022 - View Document
POS AM June 30, 2022 POS AM View Document
4 June 21, 2022 FORM 4 View Document
4 June 21, 2022 FORM 4 View Document
4 June 21, 2022 FORM 4 View Document
4 June 17, 2022 FORM 4 View Document
4 June 17, 2022 FORM 4 View Document
4 June 17, 2022 FORM 4 View Document
4 June 15, 2022 FORM 4 View Document
4 May 25, 2022 FORM 4 View Document
10-Q May 16, 2022 FORM 10-Q View Document
EFFECT May 2, 2022 - View Document
CORRESP April 28, 2022 - View Document
S-3/A April 27, 2022 FORM S-3/A View Document
4 April 27, 2022 FORM 4 View Document
UPLOAD April 26, 2022 - View Document
S-3 April 21, 2022 FORM S-3 View Document
4 April 18, 2022 FORM 4 View Document
4 April 15, 2022 FORM 4 View Document
4 April 13, 2022 FORM 4 View Document
4 April 11, 2022 FORM 4 View Document
4 April 8, 2022 FORM 4 View Document
10-K March 31, 2022 FORM 10-K View Document
8-K/A Feb. 25, 2022 FORM 8-K/A View Document
3 Feb. 23, 2022 FORM 3 View Document
8-K Feb. 22, 2022 FORM 8-K View Document
SC 13G/A Feb. 11, 2022 AMENDMENT NO. 1 TO SCHEDULE 13G View Document
8-K Jan. 26, 2022 FORM 8-K View Document
4 Jan. 25, 2022 FORM 4 View Document
4 Dec. 30, 2021 FORM 4 View Document
8-K Dec. 20, 2021 FORM 8-K View Document
4 Dec. 2, 2021 FORM 4 View Document
4 Dec. 1, 2021 FORM 4 View Document
4 Dec. 1, 2021 FORM 4 View Document
4 Dec. 1, 2021 FORM 4 View Document
8-K Nov. 19, 2021 FORM 8-K View Document
10-Q Nov. 15, 2021 FORM 10-Q View Document
8-K Oct. 4, 2021 FORM 8-K View Document
4 Sept. 16, 2021 FORM 4 View Document
4 Sept. 9, 2021 FORM 4 View Document
8-K Aug. 17, 2021 FORM 8-K View Document
10-Q Aug. 16, 2021 FORM 10-Q View Document
4 July 2, 2021 FORM 4 View Document
4 July 2, 2021 FORM 4 View Document
4 July 2, 2021 FORM 4 View Document
4 June 21, 2021 FORM 4 View Document
SD June 1, 2021 FORM SD View Document
4 May 25, 2021 FORM 4 View Document
4 May 21, 2021 FORM 4 View Document
10-Q May 17, 2021 FORM 10-Q View Document
424B3 May 12, 2021 424B3 View Document
EFFECT May 11, 2021 - View Document
CORRESP May 7, 2021 - View Document
UPLOAD May 6, 2021 - View Document
S-3 April 30, 2021 FORM S-3 View Document
D April 29, 2021 - View Document
SC 13G April 26, 2021 SCHEDULE 13G View Document
3 April 23, 2021 FORM 3 View Document
4 April 23, 2021 FORM 4 View Document
8-K April 19, 2021 FORM 8-K View Document
3 April 19, 2021 FORM 3 View Document
424B5 April 16, 2021 424B5 View Document
8-K April 15, 2021 FORM 8-K View Document
EFFECT April 14, 2021 - View Document
8-K April 14, 2021 FORM 8-K View Document
UPLOAD April 12, 2021 - View Document
CORRESP April 12, 2021 - View Document
CORRESP April 12, 2021 - View Document
S-3 April 1, 2021 FORM S-3 View Document
10-K March 31, 2021 FORM 10-K View Document
3 March 30, 2021 FORM 3 View Document
8-K Feb. 19, 2021 FORM 8-K View Document
424B4 Feb. 18, 2021 424B4 View Document
EFFECT Feb. 16, 2021 - View Document
S-1MEF Feb. 16, 2021 S-1MEF View Document
CERT Feb. 16, 2021 - View Document
8-A12B Feb. 16, 2021 8-A12B View Document
CORRESP Feb. 11, 2021 - View Document
CORRESP Feb. 11, 2021 - View Document
S-1/A Feb. 5, 2021 FORM S-1/A View Document
8-K Jan. 22, 2021 FORM 8-K View Document
8-K Jan. 6, 2021 FORM 8-K View Document
8-K Dec. 28, 2020 FORM 8-K View Document
DEF 14C Dec. 21, 2020 DEF 14C View Document
UPLOAD Dec. 15, 2020 - View Document
S-8 Dec. 14, 2020 FORM S-8 View Document
S-1 Dec. 10, 2020 FORM S-1 View Document
PRE 14C Dec. 9, 2020 PRE 14C View Document
DEF 14C Nov. 17, 2020 DEF 14C View Document
10-Q Nov. 16, 2020 FORM 10-Q View Document
UPLOAD Nov. 16, 2020 - View Document
PRER14C Nov. 5, 2020 PRER 14C View Document
UPLOAD Oct. 28, 2020 - View Document
PRE 14C Oct. 14, 2020 PRE 14C View Document
8-K Sept. 29, 2020 FORM 8-K View Document
8-K Aug. 20, 2020 FORM 8-K View Document
10-Q Aug. 14, 2020 FORM 10-Q View Document
8-K July 28, 2020 FORM 8-K View Document
3 July 28, 2020 FORM 3 View Document
SC 13D July 28, 2020 SC 13D View Document
SC 13D July 14, 2020 SC 13D View Document
3 July 13, 2020 FORM 3 View Document
10-Q May 15, 2020 FORM 10-Q View Document
10-K March 25, 2020 FORM 10-K View Document
8-K Feb. 10, 2020 FORM 8-K View Document
8-K/A Nov. 26, 2019 FORM 8-K/A View Document
10-Q Nov. 12, 2019 FORM 10-Q View Document
8-K Sept. 18, 2019 FORM 8-K View Document
10-Q July 19, 2019 FORM 10-Q View Document
8-K July 9, 2019 FORM 8-K View Document
10-Q May 14, 2019 FORM 10-Q View Document
8-K May 13, 2019 FORM 8-K View Document
8-K April 30, 2019 FORM 8-K View Document
10-K March 21, 2019 FORM 10-K View Document
144 Jan. 25, 2019 FORM 144 View Document
UPLOAD Dec. 20, 2018 - View Document
CORRESP Dec. 6, 2018 - View Document
10-K/A Dec. 6, 2018 FORM 10-K/A View Document
UPLOAD Nov. 29, 2018 - View Document
10-Q Nov. 14, 2018 FORM 10-Q View Document
144 Oct. 19, 2018 144 View Document
10-Q Aug. 3, 2018 FORM 10-Q View Document
144 July 25, 2018 144 View Document
10-Q May 15, 2018 FORM 10-Q View Document
144 April 23, 2018 144 View Document
10-K April 2, 2018 FORM 10-K View Document
4 Feb. 7, 2018 FORM 4 View Document
8-K Jan. 25, 2018 FORM 8-K View Document
144 Jan. 8, 2018 144 View Document
10-Q Nov. 14, 2017 FORM 10-Q View Document
4 Oct. 24, 2017 FORM 4 View Document
144 Oct. 2, 2017 FORM 144 View Document
10-Q Aug. 14, 2017 FORM 10-Q View Document
10-Q May 10, 2017 FORM 10-Q View Document
10-K March 2, 2017 FORM 10-K View Document
10-Q Nov. 1, 2016 FORM 10-Q View Document
10-Q/A Aug. 18, 2016 FORM 10-Q/A View Document
10-Q Aug. 12, 2016 FORM 10-Q View Document
10-Q May 13, 2016 FORM 10-Q View Document
10-K March 31, 2016 FORM 10-K View Document
NT 10-K March 30, 2016 NT 10-K View Document
4/A Jan. 4, 2016 FORM 4 A View Document
4 Dec. 31, 2015 FORM 4 View Document
SC 13D/A Dec. 31, 2015 SC 13D/A View Document
10-Q Nov. 16, 2015 FORM 10-Q View Document
10-Q Aug. 14, 2015 FORM 10-Q View Document
10-Q May 14, 2015 FORM 10-Q View Document
8-K May 6, 2015 FORM 8-K View Document
10-K March 30, 2015 FORM 10-K View Document
8-K Jan. 20, 2015 FORM 8-K View Document
8-K Dec. 31, 2014 FORM 8-K View Document
3 Dec. 30, 2014 FORM 3 View Document
SC 13D Dec. 30, 2014 SC 13D View Document
8-K Dec. 24, 2014 FORM 8-K View Document
10-Q Nov. 10, 2014 FORM 10-Q View Document
SC 13D/A Aug. 22, 2014 AMENDMENT TO FORM SC 13D View Document
4 Aug. 21, 2014 OWNERSHIP DOCUMENT View Document
10-Q Aug. 13, 2014 FORM 10-Q View Document
SC 13G/A July 30, 2014 SC 13G/A View Document
3 July 23, 2014 OWNERSHIP DOCUMENT View Document
SC 13D July 23, 2014 SCHEDULE 13D View Document
8-K July 11, 2014 FORM 8-K View Document
DEF 14C June 18, 2014 DEF 14C View Document
PRE 14C May 22, 2014 PRE 14C View Document
10-Q May 14, 2014 FORM 10-Q View Document
10-K March 31, 2014 FORM 10-K View Document
SC 13G Dec. 24, 2013 SC 13G View Document
10-Q Nov. 19, 2013 FORM 10-Q View Document
NT 10-Q Nov. 15, 2013 NT 10-Q View Document
SC 13D Oct. 2, 2013 SC 13D View Document
10-Q Aug. 19, 2013 FORM 10-Q View Document
8-K Aug. 15, 2013 FORM 8-K View Document
NT 10-Q Aug. 15, 2013 NT 10-Q View Document
DEF 14C Aug. 8, 2013 DEF 14C View Document
424B3 July 18, 2013 FORM 424B3 View Document
PRE 14C July 9, 2013 PRE 14C View Document
10-K/A May 24, 2013 FORM 10-K/A View Document
10-Q May 15, 2013 FORM 10-Q View Document
10-K April 16, 2013 FORM 10-K View Document
NT 10-K April 1, 2013 NT 10-K View Document
EFFECT Jan. 18, 2013 - View Document
8-K Jan. 17, 2013 FORM 8-K View Document
CORRESP Jan. 16, 2013 - View Document
S-1/A Jan. 15, 2013 FORM S-1/A View Document
CORRESP Dec. 31, 2012 - View Document
S-1/A Dec. 31, 2012 FORM S-1/A View Document
UPLOAD Dec. 26, 2012 - View Document
S-1/A Dec. 11, 2012 FORM S-1/A View Document
10-Q Nov. 21, 2012 FORM 10-Q View Document
NT 10-Q Nov. 14, 2012 NT 10-Q View Document
UPLOAD Sept. 7, 2012 - View Document
10-Q Aug. 20, 2012 FORM 10-Q View Document
S-1 Aug. 13, 2012 FORM S-1 View Document
NT 10-Q Aug. 13, 2012 FORM 12B-25 NOTICE OF LATE FILING View Document
D July 20, 2012 - View Document
10-Q May 21, 2012 MARCH 31, 2012 10Q View Document
NT 10-Q May 15, 2012 FORM 12B-25 NOTICE OF LATE FILING View Document
10-K April 16, 2012 DECEMBER 31, 2011 10K View Document
NT 10-K March 30, 2012 FORM 12B-25 NOTICE OF LATE FILING View Document
UPLOAD Jan. 10, 2012 - View Document
10-Q Nov. 18, 2011 SEPTEMBER 30, 2011 10Q View Document
NT 10-Q Nov. 15, 2011 FORM 12B-25 NOTICE OF LATE FILING View Document
UPLOAD Aug. 31, 2011 - View Document
10-Q Aug. 22, 2011 JUNE 30, 2011 10Q View Document
NT 10-Q Aug. 16, 2011 FORM 12B-25 NOTIFICATION OF LATE FILING View Document
10-12G/A July 25, 2011 FORM 10/A2 View Document
CORRESP July 25, 2011 - View Document
CORRESP May 25, 2011 - View Document
10-12G/A May 25, 2011 FORM 10/A View Document
UPLOAD May 10, 2011 - View Document
10-12G April 19, 2011 FORM 10 View Document