Financial reports
10-K
2023 FY
Annual report
1 Apr 24
10-Q
2023 Q3
Quarterly report
14 Nov 23
10-Q
2023 Q2
Quarterly report
14 Aug 23
10-Q
2023 Q1
Quarterly report
15 May 23
10-K
2022 FY
Annual report
31 Mar 23
10-Q
2022 Q3
Quarterly report
14 Nov 22
10-Q
2022 Q2
Quarterly report
15 Aug 22
10-Q
2022 Q1
Quarterly report
16 May 22
10-K
2021 FY
Annual report
31 Mar 22
Current reports
8-K
Departure of Directors or Certain Officers
26 Mar 24
8-K
Submission of Matters to a Vote of Security Holders
12 Dec 23
8-K
Other Events
17 Apr 23
8-K
Results of Operations and Financial Condition
31 Mar 23
8-K
Regulation FD Disclosure
12 Dec 22
8-K
Submission of Matters to a Vote of Security Holders
9 Dec 22
8-K/A
Financial Statements and Exhibits
25 Feb 22
8-K
Departure of Directors or Certain Officers
22 Feb 22
8-K
Departure of Directors or Certain Officers
26 Jan 22
8-K
AmpliTech Completes Acquisition of Spectrum Semiconductor Materials, Nearly Quadrupling
20 Dec 21
Registration and prospectus
S-3/A
Shelf registration (amended)
19 Apr 24
S-3
Shelf registration
12 Apr 24
S-8
Registration of securities for employees
6 Feb 24
POS AM
Prospectus update (post-effective amendment)
30 Jun 22
S-3/A
Shelf registration (amended)
27 Apr 22
S-3
Shelf registration
21 Apr 22
424B3
Prospectus supplement
12 May 21
S-3
Shelf registration
30 Apr 21
D
$23.02M in options / securities to be acquired, sold $23.02M, 20 investors
28 Apr 21
424B5
Prospectus supplement for primary offering
15 Apr 21
Proxies
DEF 14A
Definitive proxy
23 Oct 23
DEFA14A
Additional proxy soliciting materials
27 Oct 22
DEF 14A
Definitive proxy
27 Oct 22
DEF 14C
Information statement
21 Dec 20
PRE 14C
Preliminary information
9 Dec 20
DEF 14C
Information statement
17 Nov 20
PRER14C
Preliminary revised information
5 Nov 20
PRE 14C
Preliminary information
14 Oct 20
DEF 14C
Information statement
18 Jun 14
PRE 14C
Preliminary information
22 May 14
Other
EFFECT
Notice of effectiveness
25 Apr 24
EFFECT
Notice of effectiveness
25 Jul 22
CORRESP
Correspondence with SEC
20 Jul 22
CORRESP
Correspondence with SEC
19 Jul 22
UPLOAD
Letter from SEC
18 Jul 22
EFFECT
Notice of effectiveness
3 May 22
CORRESP
Correspondence with SEC
28 Apr 22
UPLOAD
Letter from SEC
26 Apr 22
SD
Conflict minerals disclosure
1 Jun 21
EFFECT
Notice of effectiveness
12 May 21
Ownership
4
Louisa Sanfratello
22 Dec 23
4
Jorge Luis Flores
22 Dec 23
4
Fawad Maqbool
22 Dec 23
4
Daniel Richard Mazziota
17 Nov 23
4
Daniel Richard Mazziota
29 Sep 23
4
Daniel Richard Mazziota
22 Aug 23
4
Daniel Richard Mazziota
21 Aug 23
4
Andrew Dylan Lee
21 Aug 23
4
Matthew Joseph Kappers
21 Aug 23
4
Daniel Richard Mazziota
22 Dec 22