Alphatec Holdings, Inc. — SC 13D/A Filings
12 SC 13D/A filings on record
This page lists all SC 13D/A filings submitted to the SEC by Alphatec Holdings, Inc. (ATEC), sorted by most recent first. Each row links to the full filing on EdgarLookup. Alphatec Holdings, Inc. has filed 12 SC 13D/A documents with the SEC since 2015. To view all SEC filings by Alphatec Holdings, Inc., see the full filings list.
All
10-K
10-K/A
10-Q
10-Q/A
144
3
3/A
4
4/A
424B3
424B4
424B5
424B8
425
5
8-A12G
8-K
8-K/A
ARS
CORRESP
CT ORDER
D
DEF 14A
DEFA14A
DEFM14A
EFFECT
FWP
NT 10-K
PRE 14A
PREM14A
PRER14A
S-1
S-1/A
S-3
S-3/A
S-3ASR
S-3MEF
S-8
SC 13D
SC 13D/A
SC 13G
SC 13G/A
SC TO-I
SC TO-I/A
SCHEDULE 13D/A
SD
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| SC 13D/A | SC 13D/A | 0001193125-24-256228 | Nov 12, 2024 | — |
| SC 13D/A | SC 13D/A | 0001193125-24-075553 | Mar 22, 2024 | — |
| SC 13D/A | SCHEDULE 13D/A, AMENDMENT #5 | 0000899140-23-000629 | May 12, 2023 | — |
| SC 13D/A | SCHEDULE 13D (AMENDMENT NO. 4) | 0000899140-23-000059 | Jan 27, 2023 | — |
| SC 13D/A | SC 13D/A | 0001140361-22-024353 | Jun 29, 2022 | — |
| SC 13D/A | SCHEDULE 13D/A, #2 | 0000899140-19-000311 | Mar 14, 2019 | — |
| SC 13D/A | SCHEDULE 13D (AMENDMENT NO. 1) | 0000899140-19-000280 | Mar 7, 2019 | — |
| SC 13D/A | SC 13D AMENDMENT NO. 5 | 0001193125-18-202538 | Jun 25, 2018 | — |
| SC 13D/A | SCHEDULE 13D AMENDMENT NO. 4 | 0001193125-12-121684 | Mar 19, 2012 | — |
| SC 13D/A | SCHEDULE 13D AMENDMENT NO. 3 | 0001193125-10-090218 | Apr 22, 2010 | — |
| SC 13D/A | AMENDMENT NO. 2 TO SCHEDULE 13D | 0001193125-10-081021 | Apr 12, 2010 | — |
| SC 13D/A | AMENDMENT NO. 1 TO SCHEDULE 13D | 0001193125-09-134205 | Jun 19, 2009 | — |