Gartner, Inc.
US ˙ NYSE ˙ US3666511072

SecurityIT / Gartner, Inc.
InstitutionCitigroup Inc
Latest Disclosed Ownership334,891 shares
Latest Disclosed Value $ 53,026,640
Citigroup Inc ownership in IT / Gartner, Inc.

On May 11, 2026 - Citigroup Inc filed a 13F-HR form disclosing ownership of 334,891 shares of Gartner, Inc. (US:IT) valued at $53,026,641 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 181,971 shares of Gartner, Inc.. This represents a change in shares of 84.04% during the quarter. The current value of the position is $55,173,292 USD.

Citigroup Inc has a history of taking positions in derivatives of the underlying security (IT) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

IT / Gartner, Inc. Historical Put/Call Ratio
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)
2026-05-11 2026-03-31 13F GARTNER COM 366651107 334,891 152,920 84.04 53,027 15.51 0.0226
2026-02-13 2025-12-31 13F GARTNER COM 366651107 181,971 121,725 202.05 45,908 189.89 0.0203
2025-11-10 2025-09-30 13F GARTNER COM 366651107 60,246 -34,718 -36.56 15,837 -58.75 0.0071
2025-08-11 2025-06-30 13F GARTNER COM 366651107 94,964 3,261 3.56 38,386 -0.27 0.0189
2025-05-12 2025-03-31 13F GARTNER COM 366651107 91,703 41,313 81.99 38,491 57.67 0.0197
2025-02-12 2024-12-31 13F GARTNER COM 366651107 50,390 -7,643 -13.17 24,412 -16.99 0.0145
2024-11-12 2024-09-30 13F GARTNER COM 366651107 58,033 -33,452 -36.57 29,409 -28.42 0.0170
2024-08-12 2024-06-30 13F GARTNER COM 366651107 91,485 19,375 26.87 41,082 19.52 0.0263
2024-05-10 2024-03-31 13F GARTNER COM 366651107 72,110 -1,705 -2.31 34,373 3.23 0.0226
2024-02-09 2023-12-31 13F GARTNER COM 366651107 73,815 3,823 5.46 33,299 38.45 0.0235
2023-12-06 2023-09-30 13F/A-1 GARTNER COM 366651107 69,992 -20,075 -22.29 24,050 -23.77 0.0180
2023-11-09 2023-09-30 13F GARTNER COM 366651107 69,992 -20,075 24,050 0.0072
2023-08-10 2023-06-30 13F GARTNER COM 366651107 90,067 -52,746 -36.93 31,551 -32.18 0.0207
2023-05-11 2023-03-31 13F GARTNER COM 366651107 142,813 79,674 126.19 46,524 119.22 0.0326
2023-02-09 2022-12-31 13F GARTNER COM 366651107 63,139 332 0.53 21,223 22.13 0.0169
2022-11-10 2022-09-30 13F GARTNER COM 366651107 62,807 -17,853 -22.13 17,378 -10.90 0.0124
2022-08-10 2022-06-30 13F GARTNER COM 366651107 80,660 4,016 5.24 19,505 -14.45 0.0145
2022-05-12 2022-03-31 13F GARTNER COM 366651107 76,644 -18,279 -19.26 22,800 -28.16 0.0139
2022-02-10 2021-12-31 13F GARTNER COM 366651107 94,923 9,945 11.70 31,735 22.89 0.0170
2021-11-10 2021-09-30 13F GARTNER COM 366651107 84,978 -95,016 -52.79 25,824 -40.76 0.0153
2021-08-10 2021-06-30 13F GARTNER COM 366651107 179,994 -39,789 -18.10 43,594 8.66 0.0262
2021-05-13 2021-03-31 13F GARTNER COM 366651107 219,783 3,400 1.57 40,121 15.75 0.0260
2021-02-11 2020-12-31 13F GARTNER COM 366651107 216,383 -32,647 -13.11 34,662 11.39 0.0205
2020-11-12 2020-09-30 13F GARTNER COM 366651107 249,030 40,685 19.53 31,117 23.10 0.0203
2020-08-12 2020-06-30 13F GARTNER COM 366651107 208,345 53,474 34.53 25,278 63.93 0.0197
2020-05-12 2020-03-31 13F GARTNER COM 366651107 154,871 -58,750 -27.50 15,420 -53.16 0.0139
2020-02-12 2019-12-31 13F GARTNER COM 366651107 213,621 92,309 76.09 32,919 89.77 0.0238
2019-11-08 2019-09-30 13F GARTNER COM 366651107 121,312 36,308 42.71 17,347 26.81 0.0138
2019-08-12 2019-06-30 13F GARTNER COM 366651107 85,004 -13,387 -13.61 13,680 -8.34 0.0111
2019-05-13 2019-03-31 13F GARTNER COM 366651107 98,391 -2,289 -2.27 14,925 15.96 0.0144
2019-02-12 2018-12-31 13F GARTNER COM 366651107 100,680 13,656 15.69 12,871 -6.68 0.0130
2018-11-13 2018-09-30 13F GARTNER COM 366651107 87,024 -910 -1.03 13,793 18.03 0.0123
2018-08-10 2018-06-30 13F GARTNER COM 366651107 87,934 -652 -0.74 11,686 12.16 0.0107
2018-05-11 2018-03-31 13F GARTNER COM 366651107 88,586 -8,627 -8.87 10,419 -12.97 0.0086
2018-02-12 2017-12-31 13F GARTNER COM 366651107 97,213 -6,978 -6.70 11,972 -7.64 0.0096
2017-11-13 2017-09-30 13F GARTNER COM 366651107 104,191 28,595 37.83 12,962 38.81 0.0106
2017-08-11 2017-06-30 13F GARTNER COM 366651107 75,596 27,078 55.81 9,338 78.24 0.0084
2017-05-12 2017-03-31 13F GARTNER COM 366651107 48,518 -4,755 -8.93 5,239 -2.69 0.0047
2017-02-10 2016-12-31 13F GARTNER COM 366651107 53,273 -60,493 -53.17 5,384 -46.50 0.0049
2016-11-10 2016-09-30 13F GARTNER COM 366651107 113,766 -4,615 -3.90 10,063 -12.73 0.0094
2016-08-12 2016-06-30 13F GARTNER COM 366651107 118,381 3,775 3.29 11,531 12.61 0.0118
2016-05-13 2016-03-31 13F GARTNER COM 366651107 114,606 18,868 19.71 10,240 17.95 0.0115
2016-02-12 2015-12-31 13F GARTNER COM 366651107 95,738 42,716 80.56 8,682 95.10 0.0087
2015-11-13 2015-09-30 13F GARTNER COM 366651107 53,022 5,023 10.46 4,450 8.06 0.0042
2015-08-13 2015-06-30 13F GARTNER COM 366651107 47,999 -6,282 -11.57 4,118 -9.53 0.0037
2015-05-14 2015-03-31 13F GARTNER COM 366651107 54,281 -4,857 -8.21 4,552 -8.61 0.0044
2015-02-17 2014-12-31 13F GARTNER COM 366651107 59,138 11,463 24.04 4,981 42.23 0.0044
2014-11-14 2014-09-30 13F GARTNER COM 366651107 47,675 7,012 17.24 3,502 22.15 0.0031
2014-08-14 2014-06-30 13F GARTNER COM 366651107 40,663 -1,072 -2.57 2,867 -1.07 0.0027
2014-05-15 2014-03-31 13F GARTNER COM 366651107 41,735 -29,737 -41.61 2,898 -42.93 0.0030
2014-02-14 2013-12-31 13F GARTNER COM 366651107 71,472 32,869 85.15 5,078 119.26 0.0046
2013-11-14 2013-09-30 13F GARTNER COM 366651107 38,603 5,284 15.86 2,316 21.96 0.0022
2013-08-14 2013-06-30 13F GARTNER COM 366651107 33,319 33,319 1,899 0.0019
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2018-11-13 2018-09-30 13F GARTNER COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2018-08-10 2018-06-30 13F GARTNER COM Call 15,000 0.00 1,994 13.04 n/a n/a n/a
2018-05-11 2018-03-31 13F GARTNER COM Call 15,000 1,764 n/a n/a n/a
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.