Gartner, Inc.
MX ˙ BMV ˙ US3666511072
SecurityMX:IT / Gartner, Inc.
InstitutionAcadian Asset Management Llc
Latest Disclosed Ownership40,190 shares
Latest Disclosed Value $ 6,355
Acadian Asset Management Llc reports 122.54% increase in ownership of IT / Gartner, Inc.

On May 13, 2026 - Acadian Asset Management Llc filed a 13F-HR form disclosing ownership of 40,190 shares of Gartner, Inc. (MX:IT) valued at $6,355 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 18,060 shares of Gartner, Inc.. This represents a change in shares of 122.54% 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.

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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 40,190 22,130 122.54 6 50.00 0.0090
2026-02-10 2025-12-31 13F GARTNER COM 366651107 18,060 -99,840 -84.68 5 -86.67 0.0075
2025-11-13 2025-09-30 13F GARTNER COM 366651107 117,900 -13,936 -10.57 31 -43.40 0.0541
2025-08-07 2025-06-30 13F GARTNER COM 366651107 131,836 70,930 116.46 53 112.00 0.1100
2025-05-21 2025-03-31 13F GARTNER COM 366651107 60,906 60,509 15,241.56 26 0.0722
2025-02-11 2024-12-31 13F GARTNER COM 366651107 397 -3,456 -89.70 0 -100.00 0.0006
2024-11-12 2024-09-30 13F GARTNER COM 366651107 3,853 2,402 165.54 2 0.0061
2024-08-06 2024-06-30 13F GARTNER COM 366651107 1,451 1,451 1 0.0020
2024-02-13 2023-12-31 13F GARTNER COM 366651107 0 -391 -100.00 0 0.0000
2023-11-13 2023-09-30 13F GARTNER COM 366651107 391 -180,010 -99.78 0 -100.00 0.0006
2023-08-07 2023-06-30 13F GARTNER COM 366651107 180,401 -100,286 -35.73 63 -30.77 0.2597
2023-05-11 2023-03-31 13F GARTNER COM 366651107 280,687 -87,985 -23.87 91 -26.02 0.4008
2023-02-14 2022-12-31 13F GARTNER COM 366651107 368,672 -14,827 -3.87 124 -99.88 0.6104
2022-11-14 2022-09-30 13F GARTNER COM 366651107 383,499 -60,325 -13.59 106,097 -1.15 0.5804
2022-08-09 2022-06-30 13F GARTNER COM 366651107 443,824 -23,217 -4.97 107,330 -22.73 0.5489
2022-05-12 2022-03-31 13F GARTNER COM 366651107 467,041 -192,906 -29.23 138,897 -37.03 0.5725
2022-02-10 2021-12-31 13F GARTNER COM 366651107 659,947 -11,250 -1.68 220,593 8.17 0.8241
2021-11-12 2021-09-30 13F GARTNER COM 366651107 671,197 161,796 31.76 203,932 65.29 0.7776
2021-08-11 2021-06-30 13F GARTNER COM 366651107 509,401 439,963 633.61 123,378 873.40 0.4644
2021-05-11 2021-03-31 13F GARTNER COM 366651107 69,438 -26,948 -27.96 12,675 -17.89 0.0492
2021-02-11 2020-12-31 13F GARTNER COM 366651107 96,386 92,454 2,351.32 15,437 3,037.60 0.0597
2020-11-09 2020-09-30 13F GARTNER COM 366651107 3,932 -17,234 -81.42 492 -80.85 0.0021
2020-08-12 2020-06-30 13F GARTNER COM 366651107 21,166 20,592 3,587.46 2,569 4,407.02 0.0111
2020-05-11 2020-03-31 13F GARTNER COM 366651107 574 574 57 0.0003
2017-07-25 2017-06-30 13F GARTNER COM 366651107 0 -6,061 -100.00 0 -100.00
2017-04-25 2017-03-31 13F GARTNER COM 366651107 6,061 3,447 131.87 654 147.73 0.0030
2017-01-19 2016-12-31 13F GARTNER COM 366651107 2,614 2,614 264 0.0013
2016-10-20 2016-09-30 13F GARTNER COM 366651107 0 -1,834 -100.00 0 -100.00
2016-07-19 2016-06-30 13F GARTNER COM 366651107 1,834 1,834 0.00 179 0.0009
2016-04-14 2016-03-31 13F GARTNER COM 366651107 0 0 0 0.0000
2016-01-14 2015-12-31 13F GARTNER COM 366651107 0 -65 -100.00 0 -100.00
2015-10-15 2015-09-30 13F GARTNER COM 366651107 65 2 3.17 5 0.00 0.0000
2015-08-11 2015-06-30 13F GARTNER COM 366651107 63 -68 -51.91 5 -54.55 0.0000
2015-04-20 2015-03-31 13F/A-1 GARTNER COM 366651107 131 3 2.34 11 0.00 0.0001
2015-01-23 2014-12-31 13F GARTNER COM 366651107 128 128 11 0.0000
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.