Gartner, Inc.
MX ˙ BMV ˙ US3666511072
SecurityMX:IT / Gartner, Inc.
InstitutionBlair William & Co/il
Latest Disclosed Ownership14,506 shares
Latest Disclosed Value $ 2,296,804
Blair William & Co/il reports 88.16% decrease in ownership of IT / Gartner, Inc.

On May 8, 2026 - Blair William & Co/il filed a 13F-HR form disclosing ownership of 14,506 shares of Gartner, Inc. (MX:IT) valued at $2,296,804 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 122,552 shares of Gartner, Inc.. This represents a change in shares of -88.16% 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)
2026-05-08 2026-03-31 13F GARTNER COM 366651107 14,506 -108,046 -88.16 2,297 -92.57 0.0066
2026-02-17 2025-12-31 13F GARTNER COM 366651107 122,552 4,358 3.69 30,917 -0.49 0.0830
2025-11-12 2025-09-30 13F GARTNER COM 366651107 118,194 78,610 198.59 31,070 94.18 0.0827
2025-07-24 2025-06-30 13F GARTNER COM 366651107 39,584 -1,322 -3.23 16,000 -6.81 0.0444
2025-05-09 2025-03-31 13F GARTNER COM 366651107 40,906 -1,280 -3.03 17,170 -15.99 0.0518
2025-02-12 2024-12-31 13F GARTNER COM 366651107 42,186 1,726 4.27 20,438 -0.32 0.0594
2024-11-12 2024-09-30 13F GARTNER COM 366651107 40,460 -338 -0.83 20,503 11.92 0.0602
2024-08-12 2024-06-30 13F GARTNER COM 366651107 40,798 -47,751 -53.93 18,321 -56.60 0.0565
2024-05-09 2024-03-31 13F GARTNER COM 366651107 88,549 -4,176 -4.50 42,208 0.91 0.1326
2024-02-12 2023-12-31 13F GARTNER COM 366651107 92,725 139 0.15 41,829 31.48 0.1425
2023-11-09 2023-09-30 13F GARTNER COM 366651107 92,586 1,998 2.21 31,813 0.25 0.1220
2023-08-11 2023-06-30 13F GARTNER COM 366651107 90,588 -1,104 -1.20 31,734 6.24 0.1162
2023-05-12 2023-03-31 13F GARTNER COM 366651107 91,692 -3,099 -3.27 29,871 -6.25 0.1193
2023-02-10 2022-12-31 13F GARTNER COM 366651107 94,791 41,460 77.74 31,863 115.93 0.1385
2022-11-09 2022-09-30 13F GARTNER COM 366651107 53,331 4,522 9.26 14,756 25.02 0.0678
2022-08-10 2022-06-30 13F GARTNER COM 366651107 48,809 7,120 17.08 11,803 -4.82 0.0524
2022-05-13 2022-03-31 13F GARTNER COM 366651107 41,689 -641 -1.51 12,401 -12.37 0.0435
2022-02-14 2021-12-31 13F GARTNER COM 366651107 42,330 -356 -0.83 14,152 9.10 0.0444
2021-11-12 2021-09-30 13F GARTNER COM 366651107 42,686 761 1.82 12,971 27.74 0.0442
2021-08-12 2021-06-30 13F GARTNER COM 366651107 41,925 -2,999 -6.68 10,154 23.81 0.0352
2021-05-13 2021-03-31 13F GARTNER COM 366651107 44,924 2,246 5.26 8,201 19.95 0.0309
2021-02-09 2020-12-31 13F GARTNER COM 366651107 42,678 220 0.52 6,837 28.88 0.0251
2020-11-06 2020-09-30 13F GARTNER COM 366651107 42,458 565 1.35 5,305 4.37 0.0225
2020-08-12 2020-06-30 13F GARTNER COM 366651107 41,893 -2,360 -5.33 5,083 15.37 0.0242
2020-05-11 2020-03-31 13F GARTNER COM 366651107 44,253 -20,795 -31.97 4,406 -56.05 0.0275
2020-02-13 2019-12-31 13F GARTNER COM 366651107 65,048 -470 -0.72 10,024 7.00 0.0515
2019-11-12 2019-09-30 13F GARTNER COM 366651107 65,518 62 0.09 9,368 -11.07 0.0540
2019-08-13 2019-06-30 13F GARTNER COM 366651107 65,456 -2,518 -3.70 10,534 2.17 0.0602
2019-05-14 2019-03-31 13F GARTNER COM 366651107 67,974 -3,049 -4.29 10,310 13.55 0.0629
2019-02-14 2018-12-31 13F GARTNER COM 366651107 71,023 -1,021 -1.42 9,080 -20.48 0.0663
2018-11-13 2018-09-30 13F GARTNER COM 366651107 72,044 -315 -0.44 11,419 18.74 0.0700
2018-08-13 2018-06-30 13F GARTNER COM 366651107 72,359 -1,067 -1.45 9,617 11.36 0.0654
2018-05-15 2018-03-31 13F GARTNER COM 366651107 73,426 -1,396 -1.87 8,636 -6.27 0.0611
2018-02-14 2017-12-31 13F GARTNER COM 366651107 74,822 882 1.19 9,214 0.16 0.0625
2017-11-13 2017-09-30 13F GARTNER COM 366651107 73,940 -819 -1.10 9,199 -0.37 0.0690
2017-08-04 2017-06-30 13F GARTNER COM 366651107 74,759 8,216 12.35 9,233 28.66 0.0693
2017-05-10 2017-03-31 13F GARTNER COM 366651107 66,543 -4,142 -5.86 7,176 0.45 0.0578
2017-02-14 2016-12-31 13F GARTNER COM 366651107 70,685 -5,546 -7.28 7,144 5.95 0.0639
2016-11-14 2016-09-30 13F GARTNER COM 366651107 76,231 -3,950 -4.93 6,743 -13.66 0.0596
2016-08-08 2016-06-30 13F GARTNER COM 366651107 80,181 -2,232 -2.71 7,810 6.07 0.0728
2016-05-16 2016-03-31 13F GARTNER COM 366651107 82,413 -2,863 -3.36 7,363 -4.80 0.0693
2016-02-16 2015-12-31 13F GARTNER COM 366651107 85,276 -92,733 -52.09 7,734 -48.23 0.0726
2015-11-12 2015-09-30 13F GARTNER COM 366651107 178,009 -770,926 -81.24 14,940 -81.65 0.1292
2015-08-03 2015-06-30 13F GARTNER COM 366651107 948,935 -491,971 -34.14 81,399 -32.63 0.1217
2015-05-11 2015-03-31 13F GARTNER COM 366651107 1,440,906 1,440,906 0.00 120,820 0.1860
2015-02-05 2014-12-31 13F GARTNER COM 366651107 0 -2,891,643 -100.00 0 -100.00
2014-11-04 2014-09-30 13F GARTNER COM 366651107 2,891,643 -1,232 -0.04 212,448 4.14 0.3634
2014-08-01 2014-06-30 13F GARTNER COM 366651107 2,892,875 -1,403,037 -32.66 204,005 -31.61 0.3331
2014-05-06 2014-03-31 13F GARTNER COM 366651107 4,295,912 1,018,154 31.06 298,308 28.09 0.4935
2014-02-11 2013-12-31 13F GARTNER COM 366651107 3,277,758 610,729 22.90 232,884 45.53 0.3849
2013-11-12 2013-09-30 13F GARTNER COM 366651107 2,667,029 1,183,080 79.73 160,022 89.22 0.2846
2013-08-07 2013-06-30 13F GARTNER COM 366651107 1,483,949 1,483,949 84,570 0.1672
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.