Gartner, Inc.
MX ˙ BMV ˙ US3666511072
SecurityMX:IT / Gartner, Inc.
InstitutionHorizon Investments, LLC
Latest Disclosed Ownership1,377 shares
Latest Disclosed Value $ 218,034
Horizon Investments, LLC reports 11.32% increase in ownership of IT / Gartner, Inc.

On May 14, 2026 - Horizon Investments, LLC filed a 13F-HR form disclosing ownership of 1,377 shares of Gartner, Inc. (MX:IT) valued at $218,034 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 1,237 shares of Gartner, Inc.. This represents a change in shares of 11.32% during the quarter.

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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-14 2026-03-31 13F GARTNER INC COM COM 366651107 1,377 140 11.32 218 -30.13 0.0021
2026-02-02 2025-12-31 13F GARTNER INC COM COM 366651107 1,237 51 4.30 312 0.32 0.0040
2025-11-14 2025-09-30 13F GARTNER INC COM COM 366651107 1,186 -99 -7.70 312 -40.08 0.0041
2025-08-14 2025-06-30 13F GARTNER INC COM COM 366651107 1,285 178 16.08 519 11.85 0.0082
2025-05-13 2025-03-31 13F GARTNER INC COM COM 366651107 1,107 57 5.43 465 -8.66 0.0138
2025-02-10 2024-12-31 13F GARTNER INC COM COM 366651107 1,050 6 0.57 509 -3.97 0.0146
2024-11-13 2024-09-30 13F GARTNER INC COM COM 366651107 1,044 -192 -15.53 529 -4.68 0.0140
2024-08-09 2024-06-30 13F GARTNER INC COM COM 366651107 1,236 52 4.39 555 -1.60 0.0153
2024-05-15 2024-03-31 13F GARTNER INC COM COM 366651107 1,184 -4 -0.34 564 5.42 0.0148
2024-02-14 2023-12-31 13F GARTNER INC COM COM 366651107 1,188 80 7.22 536 40.79 0.0149
2023-11-14 2023-09-30 13F GARTNER INC COM COM 366651107 1,108 14 1.28 381 -0.78 0.0116
2023-08-14 2023-06-30 13F GARTNER INC COM COM 366651107 1,094 93 9.29 383 17.48 0.0110
2023-05-15 2023-03-31 13F GARTNER INC COM COM 366651107 1,001 -2,020 -66.87 326 32,500.00 0.0097
2023-02-14 2022-12-31 13F GARTNER INC COM COM 366651107 3,021 370 13.96 1 -99.86 0.0286
2022-11-14 2022-09-30 13F GARTNER INC COM COM 366651107 2,651 531 25.05 734 43.08 0.0226
2022-08-12 2022-06-30 13F GARTNER INC COM COM 366651107 2,120 -802 -27.45 513 -40.97 0.0163
2022-05-16 2022-03-31 13F GARTNER INC COM COM 366651107 2,922 514 21.35 869 7.95 0.0246
2022-02-15 2021-12-31 13F GARTNER INC COM COM 366651107 2,408 -505 -17.34 805 -9.04 0.0238
2021-11-15 2021-09-30 13F GARTNER INC COM COM 366651107 2,913 86 3.04 885 29.20 0.0232
2021-08-13 2021-06-30 13F GARTNER INC COM COM 366651107 2,827 -1,667 -37.09 685 -16.46 0.0204
2021-05-14 2021-03-31 13F GARTNER INC COM COM 366651107 4,494 4,494 820 0.0301
2020-05-15 2020-03-31 13F GARTNER INC COM COM 366651107 0 -1,565 -100.00 0 -100.00
2020-02-14 2019-12-31 13F GARTNER INC COM COM 366651107 1,565 0 0.00 241 7.59 0.0106
2019-11-14 2019-09-30 13F GARTNER INC COM COM 366651107 1,565 -617 -28.28 224 -36.18 0.0091
2019-08-14 2019-06-30 13F GARTNER INC COM COM 366651107 2,182 808 58.81 351 68.75 0.0098
2019-05-16 2019-03-31 13F GARTNER INC COM COM 366651107 1,374 1,374 208 0.0074
2019-02-13 2018-12-31 13F GARTNER INC COM COM 366651107 0 -2,871 -100.00 0 -100.00
2018-11-14 2018-09-30 13F GARTNER INC COM COM 366651107 2,871 613 27.15 455 51.67 0.0152
2018-08-13 2018-06-30 13F GARTNER INC COM COM 366651107 2,258 2,258 300 0.0130
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.