GARTNER INC — SC 13D/A Filings
36 SC 13D/A filings on record
This page lists all SC 13D/A filings submitted to the SEC by GARTNER INC (IT), sorted by most recent first. Each row links to the full filing on EdgarLookup. GARTNER INC has filed 36 SC 13D/A documents with the SEC since 2021. To view all SEC filings by GARTNER INC, see the full filings list.
All
10-K
10-K/A
10-KT
10-Q
10-Q/A
11-K
144
144/A
15-15D
25
3
3/A
4
4/A
424B1
424B3
424B5
425
5
8-A12B
8-A12B/A
8-A12G
8-K
8-K/A
ARS
CORRESP
DEF 14A
DEFA14A
DEFR14A
DEFS14A
DFAN14A
EFFECT
FWP
PRE 14A
PRES14A
S-3
S-3/A
S-3ASR
S-4
S-4/A
S-8
S-8 POS
SC 13D
SC 13D/A
SC 13E4
SC 13E4/A
SC 13G
SC 13G/A
SC TO-C
SC TO-I
SC TO-I/A
SCHEDULE 13G
SCHEDULE 13G/A
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| SC 13D/A | SCHEDULE 13D/A | 0001418812-11-000093 | Nov 15, 2011 | — |
| SC 13D/A | SCHEDULE 13D AMENDMENT | 0001418812-11-000043 | May 16, 2011 | — |
| SC 13D/A | SCHEDULE 13D AMENDMENT | 0001418812-11-000017 | Feb 25, 2011 | — |
| SC 13D/A | SCHEDULE 13D AMENDMENT | 0001418812-11-000014 | Feb 22, 2011 | — |
| SC 13D/A | SCHEDULE 13D AMENDMENT | 0001418812-11-000012 | Feb 17, 2011 | — |
| SC 13D/A | SCHEDULE 13D AMENDMENT | 0001418812-10-000062 | Sep 10, 2010 | — |
| SC 13D/A | AMD TO SCHED 13D FOR GARTNER INC. BY SILVER LAKE PARTNERS | 0000904454-09-000794 | Dec 14, 2009 | — |
| SC 13D/A | AMD TO SCHED 13D FOR GARTNER INC. BY SILVER LAKE PARTNERS | 0000904454-09-000714 | Nov 19, 2009 | — |
| SC 13D/A | AMD TO SCHED 13 FOR GARTNER BY SILVER LAKE PARTNERS | 0000904454-09-000284 | Aug 12, 2009 | — |
| SC 13D/A | SCHEDULE 13D/A | 0000904454-09-000234 | Jun 17, 2009 | — |
| SC 13D/A | AMD OF SCHED 13D FOR GARTNER BY SILVER LAKE PARTNERS | 0000904454-08-000283 | Jun 23, 2008 | — |
| SC 13D/A | AMENDMENT TO SCHEDULE 13D | 0000950134-06-022784 | Dec 7, 2006 | — |
| SC 13D/A | AMENDED SCHEDULE 13D | 0001129787-06-000165 | Sep 19, 2006 | — |
| SC 13D/A | AMENDMENT TO SCHEDULE 13D | 0000950134-06-017884 | Sep 18, 2006 | — |
| SC 13D/A | AMENDMENT | 0001104659-06-038804 | Jun 1, 2006 | — |
| SC 13D/A | AMENDMENT | 0001104659-06-036457 | May 22, 2006 | — |
| SC 13D/A | — | 0001129787-05-000105 | Aug 11, 2005 | — |
| SC 13D/A | — | 0001129787-05-000025 | Feb 16, 2005 | — |
| SC 13D/A | SCHEDULE 13D/A | 0000893750-04-000463 | Aug 30, 2004 | — |
| SC 13D/A | SCHEDULE 13D AMENDMENT NO. 2 | 0000893750-04-000372 | Jun 21, 2004 | — |
| SC 13D/A | — | 0001129787-03-000135 | Oct 7, 2003 | — |
| SC 13D/A | SCHEDULE 13D/A | 0000893750-03-000477 | Sep 19, 2003 | — |
| SC 13D/A | — | 0001129787-03-000127 | Sep 17, 2003 | — |
| SC 13D/A | — | 0001129787-03-000109 | Jul 21, 2003 | — |
| SC 13D/A | — | 0001129787-03-000107 | Jul 14, 2003 | — |
| SC 13D/A | — | 0001129787-03-000027 | Feb 3, 2003 | — |
| SC 13D/A | — | 0001129787-03-000017 | Jan 27, 2003 | — |
| SC 13D/A | — | 0001129787-02-000122 | Oct 15, 2002 | — |
| SC 13D/A | — | 0001129787-02-000116 | Oct 7, 2002 | — |
| SC 13D/A | — | 0001129787-02-000072 | Aug 27, 2002 | — |
| SC 13D/A | — | 0001129787-02-000054 | Jul 18, 2002 | — |
| SC 13D/A | — | 0001129787-01-500020 | Oct 25, 2001 | — |
| SC 13D/A | SCHEDULE 13D/A #2 | 0001058217-01-500139 | Aug 31, 2001 | — |
| SC 13D/A | AMENDMENT NO. 1 | 0000941302-01-500177 | Jul 27, 2001 | — |
| SC 13D/A | SCHEDULE 13D/A AMENDMENT 1 | 0001058217-01-500050 | May 15, 2001 | — |
| SC 13D/A | SCHEDULE 13D/A | 0001058217-01-000159 | Apr 9, 2001 | — |