IRON MOUNTAIN INC — DEFA14A Filings
35 DEFA14A filings on record
This page lists all DEFA14A filings submitted to the SEC by IRON MOUNTAIN INC (IRM), sorted by most recent first. Each row links to the full filing on EdgarLookup. IRON MOUNTAIN INC has filed 35 DEFA14A documents with the SEC since 2018. To view all SEC filings by IRON MOUNTAIN INC, see the full filings list.
All
10-K
10-K/A
10-K405
10-Q
10-Q/A
11-K
144
144/A
15-12B
25
25-NSE
3
3/A
305B2
4
4/A
424B3
424B4
424B5
425
5
5/A
8-A12B
8-A12B/A
8-K
8-K/A
8-K12B
ARS
AW
CERTNYS
CORRESP
DEF 14A
DEFA14A
DEFM14A
DEFR14A
DFAN14A
EFFECT
FWP
IRANNOTICE
NO ACT
POS AM
POSASR
PRE 14A
PREC14A
PREM14A
PRER14A
PRRN14A
REGDEX
S-1
S-1/A
S-1MEF
S-3
S-3/A
S-3ASR
S-3MEF
S-4
S-4/A
S-8
S-8 POS
SC 13D
SC 13D/A
SC 13G
SC 13G/A
SCHEDULE 13G
SCHEDULE 13G/A
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| DEFA14A | DEFA14A | 0001020569-26-000028 | Mar 24, 2026 | — |
| DEFA14A | DEFA14A | 0001020569-25-000095 | Apr 18, 2025 | — |
| DEFA14A | DEFA14A | 0001020569-24-000117 | Apr 19, 2024 | — |
| DEFA14A | DEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALS | 0001308179-23-000453 | Mar 30, 2023 | — |
| DEFA14A | DEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALS | 0001206774-22-000945 | Mar 31, 2022 | — |
| DEFA14A | DEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALS | 0001206774-21-000975 | Apr 2, 2021 | — |
| DEFA14A | DEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALS | 0001206774-20-001056 | Apr 3, 2020 | — |
| DEFA14A | DEFA14A | 0001104659-19-029123 | May 14, 2019 | — |
| DEFA14A | DEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALS | 0001206774-19-001302 | Apr 11, 2019 | — |
| DEFA14A | DEFA14A | 0001104659-18-028541 | Apr 30, 2018 | — |
| DEFA14A | 8-K | 0001020569-17-000020 | May 10, 2017 | — |
| DEFA14A | DEFA14A | 0001104659-17-023376 | Apr 13, 2017 | — |
| DEFA14A | DEFA14A | 0001104659-16-114222 | Apr 26, 2016 | — |
| DEFA14A | 8-K | 0001104659-15-077464 | Nov 10, 2015 | — |
| DEFA14A | 8-K | 0001104659-15-076069 | Nov 5, 2015 | — |
| DEFA14A | 8-K | 0001104659-15-070536 | Oct 14, 2015 | — |
| DEFA14A | DEFA14A | 0001104659-15-067603 | Sep 28, 2015 | — |
| DEFA14A | 8-K | 0001104659-15-067385 | Sep 25, 2015 | — |
| DEFA14A | 8-K | 0001104659-15-064553 | Sep 10, 2015 | — |
| DEFA14A | DEFA14A | 0001104659-15-052796 | Jul 23, 2015 | — |
| DEFA14A | 8-K | 0001104659-15-050949 | Jul 14, 2015 | — |
| DEFA14A | DEFA14A | 0001104659-15-027277 | Apr 13, 2015 | — |
| DEFA14A | 8-K | 0001104659-14-056433 | Aug 4, 2014 | — |
| DEFA14A | DEFA14A | 0001104659-14-048518 | Jun 26, 2014 | — |
| DEFA14A | DEFA14A | 0001104659-14-041052 | May 22, 2014 | — |
| DEFA14A | DEFA14A | 0001104659-14-027595 | Apr 14, 2014 | — |
| DEFA14A | DEFA14A | 0001104659-13-032188 | Apr 24, 2013 | — |
| DEFA14A | DEFA14A | 0001104659-12-030514 | Apr 30, 2012 | — |
| DEFA14A | DEFA14A | 0001104659-11-020828 | Apr 19, 2011 | — |
| DEFA14A | DEFA14A | 0001104659-11-018502 | Apr 4, 2011 | — |
| DEFA14A | DEF 14A | 0001104659-11-013527 | Mar 10, 2011 | — |
| DEFA14A | DEFA14A | 0001104659-11-012605 | Mar 7, 2011 | — |
| DEFA14A | DEFA14A | 0001104659-10-021545 | Apr 23, 2010 | — |
| DEFA14A | DEFA14A | 0001104659-09-024998 | Apr 20, 2009 | — |
| DEFA14A | DEFA14A | 0001047469-08-004939 | Apr 21, 2008 | — |