GARTNER INC — All Filings
1,002 total filings on record
Public companies registered with the SEC are required to file periodic reports, disclosures, and notices throughout the year. The most important are the 10-K (annual report), 10-Q (quarterly report), and 8-K (material event notice). Use the filters below to narrow by form type.
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10-K
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144
144/A
15-15D
25
3
3/A
4
4/A
424B1
424B3
424B5
425
5
8-A12B
8-A12B/A
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ARS
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DEFA14A
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S-3
S-3/A
S-3ASR
S-4
S-4/A
S-8
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SC 13D
SC 13D/A
SC 13E4
SC 13E4/A
SC 13G
SC 13G/A
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SC TO-I
SC TO-I/A
SCHEDULE 13G
SCHEDULE 13G/A
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| SCHEDULE 13G/A | — | 0000102909-26-001323 | Mar 26, 2026 | — |
| 4 | PRIMARY DOCUMENT | 0000749251-26-000128 | Mar 13, 2026 | Mar 11, 2026 |
| 4 | PRIMARY DOCUMENT | 0000749251-26-000126 | Mar 3, 2026 | Feb 27, 2026 |
| 4 | PRIMARY DOCUMENT | 0000749251-26-000124 | Mar 3, 2026 | Feb 27, 2026 |
| 4 | PRIMARY DOCUMENT | 0000749251-26-000122 | Mar 3, 2026 | Feb 27, 2026 |
| 4 | PRIMARY DOCUMENT | 0000749251-26-000120 | Mar 3, 2026 | Feb 27, 2026 |
| 4 | PRIMARY DOCUMENT | 0000749251-26-000118 | Mar 3, 2026 | Feb 27, 2026 |
| 4 | PRIMARY DOCUMENT | 0000749251-26-000116 | Feb 19, 2026 | Feb 17, 2026 |
| 4 | PRIMARY DOCUMENT | 0000749251-26-000115 | Feb 19, 2026 | Feb 17, 2026 |
| SCHEDULE 13G | — | 0001562230-26-000028 | Feb 13, 2026 | — |
| 10-K | 10-K | 0000749251-26-000112 | Feb 12, 2026 | Dec 31, 2025 |
| 4 | PRIMARY DOCUMENT | 0000749251-26-000110 | Feb 11, 2026 | Feb 9, 2026 |
| 4 | PRIMARY DOCUMENT | 0000749251-26-000108 | Feb 11, 2026 | Feb 9, 2026 |
| 4 | PRIMARY DOCUMENT | 0000749251-26-000106 | Feb 11, 2026 | Feb 9, 2026 |
| 4 | PRIMARY DOCUMENT | 0000749251-26-000104 | Feb 11, 2026 | Feb 9, 2026 |
| 4 | PRIMARY DOCUMENT | 0000749251-26-000102 | Feb 11, 2026 | Feb 9, 2026 |
| 4 | PRIMARY DOCUMENT | 0000749251-26-000100 | Feb 11, 2026 | Feb 9, 2026 |
| 4 | PRIMARY DOCUMENT | 0000749251-26-000098 | Feb 11, 2026 | Feb 9, 2026 |
| 4 | PRIMARY DOCUMENT | 0000749251-26-000096 | Feb 11, 2026 | Feb 9, 2026 |
| 4 | PRIMARY DOCUMENT | 0000749251-26-000094 | Feb 11, 2026 | Feb 9, 2026 |
| 4 | PRIMARY DOCUMENT | 0000749251-26-000092 | Feb 11, 2026 | Feb 9, 2026 |
| 4 | PRIMARY DOCUMENT | 0000749251-26-000090 | Feb 10, 2026 | Feb 6, 2026 |
| 4 | PRIMARY DOCUMENT | 0000749251-26-000088 | Feb 10, 2026 | Feb 6, 2026 |
| 4 | PRIMARY DOCUMENT | 0000749251-26-000086 | Feb 10, 2026 | Feb 6, 2026 |
| 4 | PRIMARY DOCUMENT | 0000749251-26-000084 | Feb 10, 2026 | Feb 6, 2026 |
| 4 | PRIMARY DOCUMENT | 0000749251-26-000081 | Feb 10, 2026 | Feb 6, 2026 |
| 4 | PRIMARY DOCUMENT | 0000749251-26-000079 | Feb 10, 2026 | Feb 6, 2026 |
| 4 | PRIMARY DOCUMENT | 0000749251-26-000077 | Feb 10, 2026 | Feb 6, 2026 |
| 4 | PRIMARY DOCUMENT | 0000749251-26-000075 | Feb 10, 2026 | Feb 6, 2026 |
| 4 | PRIMARY DOCUMENT | 0000749251-26-000073 | Feb 10, 2026 | Feb 6, 2026 |
| 4 | PRIMARY DOCUMENT | 0000749251-26-000071 | Feb 10, 2026 | Feb 6, 2026 |
| 4 | PRIMARY DOCUMENT | 0000749251-26-000069 | Feb 10, 2026 | Feb 6, 2026 |
| 4 | PRIMARY DOCUMENT | 0000749251-26-000067 | Feb 10, 2026 | Feb 6, 2026 |
| 4 | PRIMARY DOCUMENT | 0000749251-26-000061 | Feb 9, 2026 | Feb 5, 2026 |
| 4 | PRIMARY DOCUMENT | 0000749251-26-000059 | Feb 9, 2026 | Feb 5, 2026 |
| 4 | PRIMARY DOCUMENT | 0000749251-26-000057 | Feb 9, 2026 | Feb 5, 2026 |
| 4 | PRIMARY DOCUMENT | 0000749251-26-000055 | Feb 9, 2026 | Feb 5, 2026 |
| 4 | PRIMARY DOCUMENT | 0000749251-26-000053 | Feb 9, 2026 | Feb 5, 2026 |
| 4 | PRIMARY DOCUMENT | 0000749251-26-000052 | Feb 9, 2026 | Feb 5, 2026 |
| 4 | PRIMARY DOCUMENT | 0000749251-26-000049 | Feb 9, 2026 | Feb 5, 2026 |
| 4 | PRIMARY DOCUMENT | 0000749251-26-000046 | Feb 9, 2026 | Feb 5, 2026 |
| 4 | PRIMARY DOCUMENT | 0000749251-26-000043 | Feb 9, 2026 | Feb 5, 2026 |
| 4 | PRIMARY DOCUMENT | 0000749251-26-000038 | Feb 9, 2026 | Feb 5, 2026 |
| 4 | PRIMARY DOCUMENT | 0000749251-26-000036 | Feb 9, 2026 | Feb 5, 2026 |
| 4 | PRIMARY DOCUMENT | 0000749251-26-000034 | Feb 9, 2026 | Feb 5, 2026 |
| 3 | PRIMARY DOCUMENT | 0000749251-26-000032 | Feb 4, 2026 | Jan 29, 2026 |
| 3 | PRIMARY DOCUMENT | 0000749251-26-000031 | Feb 4, 2026 | Jan 29, 2026 |
| 8-K | 8-K | 0000749251-26-000028 | Feb 3, 2026 | Jan 29, 2026 |
| 8-K | 8-K | 0000749251-26-000025 | Jan 29, 2026 | — |
| 4 | PRIMARY DOCUMENT | 0000749251-26-000021 | Jan 6, 2026 | Jan 2, 2026 |