Gartner, Inc.
US ˙ NYSE ˙ US3666511072

SecurityIT / Gartner, Inc.
InstitutionWalleye Capital LLC
Latest Disclosed Ownership3,103 shares
Latest Disclosed Value $ 491,329
Walleye Capital LLC ownership in IT / Gartner, Inc.

On May 13, 2026 - Walleye Capital LLC filed a 13F-HR/A form disclosing ownership of 3,103 shares of Gartner, Inc. (US:IT) valued at $491,329 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 11 shares of Gartner, Inc.. This represents a change in shares of 28,109.09% during the quarter. The current value of the position is $511,219 USD.

Walleye Capital LLC 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 16,600 of underlying shares valued at $2,628,444 USD and put options representing 7,300 of underlying shares valued at $1,155,882 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)
2026-05-13 2026-03-31 13F/A-1 GARTNER COM 366651107 3,103 3,092 28,109.09 491 24,450.00 0.0020
2026-05-08 2026-03-31 13F GARTNER COM 366651107 3,103 3,092 491 0.0020
2026-02-13 2025-12-31 13F GARTNER COM 366651107 11 -22,679 -99.95 3 -99.97 0.0000
2025-11-14 2025-09-30 13F GARTNER COM 366651107 22,690 22,569 18,652.07 5,965 12,325.00 0.0224
2025-08-13 2025-06-30 13F GARTNER COM 366651107 121 -999 -89.20 49 -89.79 0.0002
2025-05-14 2025-03-31 13F GARTNER COM 366651107 1,120 -3,492 -75.72 470 -78.96 0.0021
2025-02-13 2024-12-31 13F GARTNER COM 366651107 4,612 3,560 338.40 2,234 319.14 0.0055
2024-11-14 2024-09-30 13F GARTNER COM 366651107 1,052 -359 -25.44 533 -15.80 0.0011
2024-08-14 2024-06-30 13F GARTNER COM 366651107 1,411 361 34.38 634 26.60 0.0011
2024-05-15 2024-03-31 13F GARTNER COM 366651107 1,050 1,050 501 0.0009
2023-11-21 2023-09-30 13F/A-1 GARTNER COM 366651107 0 -13,970 -100.00 0 -100.00
2023-11-14 2023-09-30 13F GARTNER COM 366651107 0 -13,970 0
2023-08-14 2023-06-30 13F GARTNER COM 366651107 13,970 -32,901 -70.19 4,894 -67.95 0.0177
2023-05-15 2023-03-31 13F GARTNER COM 366651107 46,871 38,733 475.95 15,269 458.28 0.2288
2023-02-14 2022-12-31 13F GARTNER COM 366651107 8,138 8,138 2,736 0.0499
2021-05-17 2021-03-31 13F GARTNER COM 366651107 0 -1,458 -100.00 0 -100.00
2021-02-16 2020-12-31 13F GARTNER COM 366651107 1,458 1,458 234 0.0156
2020-11-16 2020-09-30 13F GARTNER COM 366651107 0 -2,459 -100.00 0 -100.00
2020-08-14 2020-06-30 13F GARTNER COM 366651107 2,459 2,459 298 0.0665
2020-02-14 2019-12-31 13F GARTNER COM 366651107 0 -690 -100.00 0 -100.00
2019-11-14 2019-09-30 13F GARTNER COM 366651107 690 690 99 0.0059
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
(%)
2026-05-13 2026-03-31 13F/A GARTNER COM Call 16,600 418.75 2,628 225.65 n/a n/a n/a
2026-05-08 2026-03-31 13F GARTNER COM Call 16,600 2,628 n/a n/a n/a
2026-02-13 2025-12-31 13F GARTNER COM Call 3,200 -34.69 807 -37.34 n/a n/a n/a
2025-11-14 2025-09-30 13F GARTNER COM Call 4,900 600.00 1,288 356.74 n/a n/a n/a
2025-08-13 2025-06-30 13F GARTNER COM Call 700 250.00 283 239.76 n/a n/a n/a
2025-05-14 2025-03-31 13F GARTNER COM Call 200 84 n/a n/a n/a
2024-11-14 2024-09-30 13F GARTNER COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-08-14 2024-06-30 13F GARTNER COM Call 1,100 -80.00 494 -81.19 n/a n/a n/a
2024-05-15 2024-03-31 13F GARTNER COM Call 5,500 -26.67 2,622 -22.52 n/a n/a n/a
2024-02-14 2023-12-31 13F GARTNER COM Call 7,500 44.23 3,383 89.42 n/a n/a n/a
2023-11-21 2023-09-30 13F/A GARTNER COM Call 5,200 100.00 1,787 96.26 n/a n/a n/a
2023-11-14 2023-09-30 13F GARTNER COM Call 5,200 1,787 n/a n/a n/a
2023-08-14 2023-06-30 13F GARTNER COM Call 2,600 766.67 911 838.14 n/a n/a n/a
2023-05-15 2023-03-31 13F GARTNER COM Call 300 -62.50 98 -63.81 n/a n/a n/a
2023-02-14 2022-12-31 13F GARTNER COM Call 800 269 n/a n/a n/a
2020-02-14 2019-12-31 13F GARTNER COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2019-11-14 2019-09-30 13F GARTNER COM Call 7,300 265.00 1,044 224.22 n/a n/a n/a
2019-08-14 2019-06-30 13F GARTNER COM Call 2,000 322 n/a n/a n/a
Disclosed Put 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
(%)
2026-05-13 2026-03-31 13F/A GARTNER COM Put 7,300 180.77 1,156 76.34 n/a n/a n/a
2026-05-08 2026-03-31 13F GARTNER COM Put 7,300 1,156 n/a n/a n/a
2026-02-13 2025-12-31 13F GARTNER COM Put 2,600 62.50 656 55.95 n/a n/a n/a
2025-11-14 2025-09-30 13F GARTNER COM Put 1,600 166.67 421 73.55 n/a n/a n/a
2025-08-13 2025-06-30 13F GARTNER COM Put 600 243 n/a n/a n/a
2025-05-14 2025-03-31 13F GARTNER COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-02-13 2024-12-31 13F GARTNER COM Put 100 -87.50 48 -88.15 n/a n/a n/a
2024-11-14 2024-09-30 13F GARTNER COM Put 800 -76.47 405 -73.46 n/a n/a n/a
2024-08-14 2024-06-30 13F GARTNER COM Put 3,400 -55.84 1,527 -58.42 n/a n/a n/a
2024-05-15 2024-03-31 13F GARTNER COM Put 7,700 600.00 3,670 639.92 n/a n/a n/a
2024-02-14 2023-12-31 13F GARTNER COM Put 1,100 -50.00 496 -34.30 n/a n/a n/a
2023-11-21 2023-09-30 13F/A GARTNER COM Put 2,200 2,100.00 756 2,057.14 n/a n/a n/a
2023-11-14 2023-09-30 13F GARTNER COM Put 2,200 756 n/a n/a n/a
2023-08-14 2023-06-30 13F GARTNER COM Put 100 -92.31 35 -91.73 n/a n/a n/a
2023-05-15 2023-03-31 13F GARTNER COM Put 1,300 -40.91 424 -42.76 n/a n/a n/a
2023-02-14 2022-12-31 13F GARTNER COM Put 2,200 740 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.