Gartner, Inc.
MX ˙ BMV ˙ US3666511072
SecurityMX:IT / Gartner, Inc.
InstitutionSchwerin Boyle Capital Management Inc
Latest Disclosed Ownership58,476 shares
Latest Disclosed Value $ 9,259,090
Schwerin Boyle Capital Management Inc reports 8.63% decrease in ownership of IT / Gartner, Inc.

On May 14, 2026 - Schwerin Boyle Capital Management Inc filed a 13F-HR form disclosing ownership of 58,476 shares of Gartner, Inc. (MX:IT) valued at $9,259,090 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 64,001 shares of Gartner, Inc.. This represents a change in shares of -8.63% 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)
2026-05-14 2026-03-31 13F GARTNER COM 366651107 58,476 -5,525 -8.63 9,259 -42.65 1.1750
2026-02-12 2025-12-31 13F GARTNER COM 366651107 64,001 -526 -0.82 16,146 -4.81 1.7691
2025-11-13 2025-09-30 13F GARTNER COM 366651107 64,527 -563 -0.86 16,962 -35.53 1.8539
2025-08-14 2025-06-30 13F GARTNER COM 366651107 65,090 -7,976 -10.92 26,311 -14.21 2.9331
2025-05-14 2025-03-31 13F GARTNER COM 366651107 73,066 -1,349 -1.81 30,669 -14.93 3.1613
2025-02-13 2024-12-31 13F GARTNER COM 366651107 74,415 -236 -0.32 36,052 -4.70 3.6979
2024-11-13 2024-09-30 13F GARTNER COM 366651107 74,651 -5,136 -6.44 37,830 5.58 3.9629
2024-08-13 2024-06-30 13F GARTNER COM 366651107 79,787 -600 -0.75 35,829 -6.50 3.7582
2024-05-14 2024-03-31 13F GARTNER COM 366651107 80,387 -700 -0.86 38,318 4.75 3.8117
2024-02-13 2023-12-31 13F GARTNER COM 366651107 81,087 -593 -0.73 36,579 30.33 4.0883
2023-11-13 2023-09-30 13F GARTNER COM 366651107 81,680 -36,208 -30.71 28,066 -32.04 3.2951
2023-08-14 2023-06-30 13F GARTNER COM 366651107 117,888 -844 -0.71 41,297 6.77 3.8950
2023-05-12 2023-03-31 13F GARTNER COM 366651107 118,732 -12,915 -9.81 38,679 -12.59 3.9735
2023-02-09 2022-12-31 13F GARTNER COM 366651107 131,647 -4,615 -3.39 44,252 17.37 4.4630
2022-11-14 2022-09-30 13F GARTNER COM 366651107 136,262 -41,341 -23.28 37,702 -12.22 4.1049
2022-08-15 2022-06-30 13F GARTNER COM 366651107 177,603 -6,147 -3.35 42,950 -21.42 4.3835
2022-05-13 2022-03-31 13F GARTNER COM 366651107 183,750 -5,669 -2.99 54,658 -13.69 4.5557
2022-02-11 2021-12-31 13F GARTNER COM 366651107 189,419 -7,855 -3.98 63,327 5.64 5.1473
2021-11-15 2021-09-30 13F GARTNER COM 366651107 197,274 -12,753 -6.07 59,948 17.85 5.0443
2021-08-16 2021-06-30 13F GARTNER COM 366651107 210,027 -2,944 -1.38 50,869 30.84 4.1960
2021-05-17 2021-03-31 13F GARTNER COM 366651107 212,971 -4,568 -2.10 38,878 11.56 3.4527
2021-02-12 2020-12-31 13F GARTNER COM 366651107 217,539 -804 -0.37 34,848 27.73 3.2498
2020-11-13 2020-09-30 13F GARTNER COM 366651107 218,343 -3,714 -1.67 27,282 1.26 3.1313
2020-08-14 2020-06-30 13F GARTNER COM 366651107 222,057 -8,970 -3.88 26,942 17.12 3.3872
2020-05-14 2020-03-31 13F GARTNER COM 366651107 231,027 -1,966 -0.84 23,003 -35.93 3.2113
2020-02-13 2019-12-31 13F GARTNER COM 366651107 232,993 -6,810 -2.84 35,904 4.71 3.4337
2019-11-13 2019-09-30 13F GARTNER COM 366651107 239,803 -1,600 -0.66 34,289 -11.74 3.5352
2019-08-13 2019-06-30 13F GARTNER COM 366651107 241,403 -5,224 -2.12 38,851 3.86 4.0582
2019-05-13 2019-03-31 13F GARTNER COM 366651107 246,627 -894 -0.36 37,408 18.22 4.1081
2019-02-12 2018-12-31 13F GARTNER COM 366651107 247,521 -5,330 -2.11 31,643 -21.04 3.9727
2018-11-13 2018-09-30 13F GARTNER COM 366651107 252,851 -2,401 -0.94 40,077 18.14 4.2564
2018-08-14 2018-06-30 13F GARTNER COM 366651107 255,252 -380 -0.15 33,923 12.82 3.7175
2018-05-15 2018-03-31 13F GARTNER COM 366651107 255,632 -550 -0.21 30,067 -4.70 3.3017
2018-02-13 2017-12-31 13F GARTNER COM 366651107 256,182 -1,400 -0.54 31,549 -1.55 3.4398
2017-11-14 2017-09-30 13F GARTNER COM 366651107 257,582 -1,352 -0.52 32,046 0.20 3.6111
2017-08-14 2017-06-30 13F GARTNER COM 366651107 258,934 63,264 32.33 31,981 51.35 3.7564
2017-05-12 2017-03-31 13F GARTNER COM 366651107 195,670 -1,050 -0.53 21,130 6.28 2.5857
2017-02-14 2016-12-31 13F GARTNER COM 366651107 196,720 145 0.07 19,882 14.35 2.4599
2016-11-14 2016-09-30 13F GARTNER COM 366651107 196,575 -300 -0.15 17,387 -9.34 2.4108
2016-08-15 2016-06-30 13F GARTNER COM 366651107 196,875 -3,995 -1.99 19,178 6.85 2.7506
2016-05-13 2016-03-31 13F GARTNER COM 366651107 200,870 -3,400 -1.66 17,948 -3.13 2.5211
2016-02-17 2015-12-31 13F GARTNER COM 366651107 204,270 -900 -0.44 18,527 7.59 2.5722
2015-11-12 2015-09-30 13F GARTNER COM 366651107 205,170 0 0.00 17,220 -2.15 2.4716
2015-08-11 2015-06-30 13F GARTNER COM 366651107 205,170 -2,160 -1.04 17,599 1.23 2.3095
2015-05-05 2015-03-31 13F GARTNER COM 366651107 207,330 -900 -0.43 17,385 -0.86 2.4408
2015-02-09 2014-12-31 13F GARTNER COM 366651107 208,230 -500 -0.24 17,535 14.35 2.3768
2014-11-17 2014-09-30 13F GARTNER COM 366651107 208,730 2,000 0.97 15,335 5.19 2.1405
2014-08-12 2014-06-30 13F GARTNER COM 366651107 206,730 -500 -0.24 14,579 1.31 2.1035
2014-05-14 2014-03-31 13F GARTNER COM 366651107 207,230 1,850 0.90 14,390 -1.38 2.0525
2014-02-14 2013-12-31 13F GARTNER COM 366651107 205,380 -2,640 -1.27 14,592 16.91 2.0491
2013-11-15 2013-09-30 13F GARTNER COM 366651107 208,020 -950 -0.45 12,481 4.80 1.8938
2013-08-14 2013-06-30 13F GARTNER COM 366651107 208,970 208,970 11,909 1.9135
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.