Gartner, Inc.
US ˙ NYSE ˙ US3666511072

SecurityIT / Gartner, Inc.
InstitutionNatixis Advisors, L.p.
Latest Disclosed Ownership258,772 shares
Latest Disclosed Value $ 40,974
Natixis Advisors, L.p. reports 6.27% decrease in ownership of IT / Gartner, Inc.

On May 13, 2026 - Natixis Advisors, L.p. filed a 13F-HR form disclosing ownership of 258,772 shares of Gartner, Inc. (US:IT) valued at $40,973,958 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 276,085 shares of Gartner, Inc.. This represents a change in shares of -6.27% during the quarter. The current value of the position is $42,632,687 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-13 2026-03-31 13F GARTNER COM 366651107 258,772 -17,313 -6.27 41 -42.03 0.0570
2026-02-10 2025-12-31 13F GARTNER COM 366651107 276,085 -53,711 -16.29 70 -19.77 0.0987
2025-11-13 2025-09-30 13F GARTNER INC COM 366651107 329,796 96,251 41.21 87 -8.51 0.1265
2025-08-13 2025-06-30 13F GARTNER COM 366651107 233,545 -16,443 -6.58 94 -9.62 0.1498
2025-05-08 2025-03-31 13F GARTNER COM 366651107 249,988 3,398 1.38 105 -12.61 0.1939
2025-02-10 2024-12-31 13F GARTNER COM 366651107 246,590 15,651 6.78 119 1.71 0.2232
2024-11-06 2024-09-30 13F GARTNER COM 366651107 230,939 30,842 15.41 117 31.46 0.2282
2024-08-01 2024-06-30 13F GARTNER COM 366651107 200,097 108,061 117.41 90 106.98 0.1954
2024-04-25 2024-03-31 13F GARTNER COM 366651107 92,036 41,962 83.80 44 95.45 0.1009
2024-02-06 2023-12-31 13F GARTNER COM 366651107 50,074 158 0.32 23 29.41 0.0595
2023-11-13 2023-09-30 13F GARTNER COM 366651107 49,916 2,097 4.39 17 6.25 0.0525
2023-08-15 2023-06-30 13F GARTNER COM 366651107 47,819 -589 -1.22 17 6.67 0.0517
2023-05-11 2023-03-31 13F GARTNER INC COM COM 366651107 48,408 174 0.36 16 -6.25 0.0543
2023-01-27 2022-12-31 13F GARTNER COM 366651107 48,234 -2,611 -5.14 16 -99.89 0.0613
2022-11-14 2022-09-30 13F GARTNER COM 366651107 50,845 4,203 9.01 14,068 24.73 0.0595
2022-08-12 2022-06-30 13F GARTNER COM 366651107 46,642 -5,517 -10.58 11,279 -27.30 0.0496
2022-05-12 2022-03-31 13F GARTNER COM 366651107 52,159 -9,592 -15.53 15,515 -24.85 0.0592
2022-02-08 2021-12-31 13F GARTNER COM 366651107 61,751 -740 -1.18 20,645 8.72 0.0788
2021-11-15 2021-09-30 13F GARTNER COM 366651107 62,491 -8,528 -12.01 18,990 10.40 0.0781
2021-08-12 2021-06-30 13F GARTNER COM 366651107 71,019 -12,096 -14.55 17,201 13.37 0.0803
2021-05-05 2021-03-31 13F GARTNER COM 366651107 83,115 -6,599 -7.36 15,172 5.57 0.0792
2021-02-12 2020-12-31 13F GARTNER COM 366651107 89,714 32,198 55.98 14,371 99.96 0.0828
2020-11-12 2020-09-30 13F GARTNER COM 366651107 57,516 423 0.74 7,187 3.75 0.0452
2020-08-11 2020-06-30 13F GARTNER COM 366651107 57,093 17,134 42.88 6,927 74.09 0.0460
2020-04-27 2020-03-31 13F GARTNER COM 366651107 39,959 208 0.52 3,979 -35.05 0.0324
2020-02-10 2019-12-31 13F GARTNER COM 366651107 39,751 4,139 11.62 6,126 20.31 0.0432
2019-11-12 2019-09-30 13F GARTNER COM 366651107 35,612 3,441 10.70 5,092 -1.66 0.0404
2019-08-12 2019-06-30 13F GARTNER COM 366651107 32,171 2,527 8.52 5,178 15.17 0.0423
2019-05-15 2019-03-31 13F/A-1 GARTNER COM 366651107 29,644 2,090 7.59 4,496 27.65 0.0394
2019-05-15 2019-03-31 13F GARTNER COM 366651107 29,644 2,090 4,496
2019-02-13 2018-12-31 13F/A-1 GARTNER COM 366651107 27,554 -2,208 -7.42 3,522 -25.33 0.0348
2019-02-13 2018-12-31 13F GARTNER COM 366651107 27,554 -2,208 3,522
2018-11-13 2018-09-30 13F GARTNER COM 366651107 29,762 -942 -3.07 4,717 15.58 0.0415
2018-08-14 2018-06-30 13F/A-1 GARTNER COM 366651107 30,704 2,260 7.95 4,081 21.97 0.0390
2018-08-14 2018-06-30 13F GARTNER COM 366651107 30,704 4,081
2018-05-10 2018-03-31 13F GARTNER COM 366651107 28,444 4,608 19.33 3,346 14.00 0.0330
2018-02-14 2017-12-31 13F GARTNER COM 366651107 23,836 -4,857 -16.93 2,935 -17.76 0.0299
2017-11-14 2017-09-30 13F GARTNER COM 366651107 28,693 1,334 4.88 3,569 5.62 0.0377
2017-07-27 2017-06-30 13F GARTNER COM 366651107 27,359 1,832 7.18 3,379 22.56 0.0366
2017-05-12 2017-03-31 13F GARTNER COM 366651107 25,527 798 3.23 2,757 10.32 0.0305
2017-02-07 2016-12-31 13F GARTNER COM 366651107 24,729 4,235 20.66 2,499 37.84 0.0300
2016-11-04 2016-09-30 13F GARTNER COM 366651107 20,494 2,488 13.82 1,813 3.36 0.0235
2016-08-01 2016-06-30 13F GARTNER COM 366651107 18,006 2,514 16.23 1,754 26.73 0.0242
2016-05-06 2016-03-31 13F GARTNER COM 366651107 15,492 15,492 0.00 1,384 0.0207
2016-02-12 2015-12-31 13F GARTNER COM 366651107 0 -10,220 -100.00 0 -100.00
2015-11-12 2015-09-30 13F GARTNER COM 366651107 10,220 10,220 0.00 858 0.0149
2015-08-14 2015-06-30 13F GARTNER COM 366651107 0 -13,974 -100.00 0 -100.00
2015-05-15 2015-03-31 13F GARTNER COM 366651107 13,974 309 2.26 1,172 1.82 0.0206
2015-02-05 2014-12-31 13F GARTNER COM 366651107 13,665 236 1.76 1,151 16.62 0.0215
2014-11-03 2014-09-30 13F GARTNER COM 366651107 13,429 126 0.95 987 5.22 0.0198
2014-08-13 2014-06-30 13F GARTNER COM 366651107 13,303 810 6.48 938 8.06 0.0134
2014-05-13 2014-03-31 13F GARTNER COM 366651107 12,493 1,189 10.52 868 8.09 0.0134
2014-02-12 2013-12-31 13F GARTNER COM 366651107 11,304 365 3.34 803 22.41 0.0131
2013-10-30 2013-09-30 13F GARTNER COM 366651107 10,939 277 2.60 656 7.89 0.0121
2013-07-19 2013-06-30 13F GARTNER COM 366651107 10,662 10,662 608 0.0121
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.