Digital Realty Trust, Inc.
DE ˙ DB ˙ US2538681030
158,05 € ↓ −2,15 (−1,34%)
2026-06-04
DELAT PRIS
SecurityDE:FQI / Digital Realty Trust, Inc.
InstitutionCitigroup Inc
Latest Disclosed Ownership686,737 shares
Latest Disclosed Value $ 123,756,893
Citigroup Inc ownership in FQI / Digital Realty Trust, Inc.

On May 11, 2026 - Citigroup Inc filed a 13F-HR form disclosing ownership of 686,737 shares of Digital Realty Trust, Inc. (DE:FQI) valued at $105,620,151 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 544,309 shares of Digital Realty Trust, Inc.. This represents a change in shares of 26.17% during the quarter. The current value of the position is $108,538,783 USD.

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

DE:FQI / Digital Realty Trust, 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 DIGITAL RLTY TR COM 253868103 686,737 142,428 26.17 123,757 46.96 0.0528
2026-02-13 2025-12-31 13F DIGITAL RLTY TR COM 253868103 544,309 -80,375 -12.87 84,210 -22.02 0.0372
2025-11-10 2025-09-30 13F DIGITAL RLTY TR COM 253868103 624,684 -22,803 -3.52 107,995 -4.32 0.0481
2025-08-11 2025-06-30 13F DIGITAL RLTY TR COM 253868103 647,487 192,338 42.26 112,876 73.07 0.0554
2025-05-12 2025-03-31 13F DIGITAL RLTY TR COM 253868103 455,149 254,736 127.11 65,218 83.51 0.0333
2025-02-12 2024-12-31 13F DIGITAL RLTY TR COM 253868103 200,413 -154,998 -43.61 35,539 -38.21 0.0211
2024-11-12 2024-09-30 13F DIGITAL RLTY TR COM 253868103 355,411 14,985 4.40 57,516 11.12 0.0333
2024-08-12 2024-06-30 13F DIGITAL RLTY TR COM 253868103 340,426 -10,105 -2.88 51,762 2.52 0.0332
2024-05-10 2024-03-31 13F DIGITAL RLTY TR COM 253868103 350,531 60,706 20.95 50,490 29.45 0.0332
2024-02-09 2023-12-31 13F DIGITAL RLTY TR COM 253868103 289,825 37,447 14.84 39,005 27.71 0.0275
2023-12-06 2023-09-30 13F/A-1 DIGITAL RLTY TR COM 253868103 252,378 18,508 7.91 30,543 14.69 0.0228
2023-11-09 2023-09-30 13F DIGITAL RLTY TR COM 253868103 252,378 18,508 30,543 0.0091
2023-08-10 2023-06-30 13F DIGITAL RLTY TR COM 253868103 233,870 -113,710 -32.71 26,631 -22.07 0.0175
2023-05-11 2023-03-31 13F DIGITAL RLTY TR COM 253868103 347,580 127,916 58.23 34,171 55.14 0.0240
2023-02-09 2022-12-31 13F DIGITAL RLTY TR COM 253868103 219,664 -70,396 -24.27 22,026 -23.44 0.0175
2022-11-10 2022-09-30 13F DIGITAL RLTY TR COM 253868103 290,060 20,630 7.66 28,770 -17.76 0.0206
2022-08-10 2022-06-30 13F DIGITAL RLTY TR COM 253868103 269,430 -80,751 -23.06 34,981 -29.55 0.0260
2022-05-12 2022-03-31 13F DIGITAL RLTY TR COM 253868103 350,181 -104,018 -22.90 49,656 -38.19 0.0302
2022-02-10 2021-12-31 13F DIGITAL RLTY TR COM 253868103 454,199 -139,428 -23.49 80,335 -6.31 0.0430
2021-11-10 2021-09-30 13F DIGITAL RLTY TR COM 253868103 593,627 -108,512 -15.45 85,750 -18.83 0.0506
2021-08-10 2021-06-30 13F DIGITAL RLTY TR COM 253868103 702,139 38,118 5.74 105,643 12.96 0.0636
2021-05-13 2021-03-31 13F DIGITAL RLTY TR COM 253868103 664,021 -24,328 -3.53 93,520 -2.61 0.0605
2021-02-11 2020-12-31 13F DIGITAL RLTY TR COM 253868103 688,349 31,534 4.80 96,031 -0.38 0.0567
2020-11-12 2020-09-30 13F DIGITAL RLTY TR COM 253868103 656,815 409,814 165.92 96,393 174.61 0.0629
2020-08-12 2020-06-30 13F DIGITAL RLTY TR COM 253868103 247,001 38,164 18.27 35,102 21.00 0.0274
2020-05-12 2020-03-31 13F DIGITAL RLTY TR COM 253868103 208,837 -268,902 -56.29 29,010 -49.29 0.0262
2020-02-12 2019-12-31 13F DIGITAL RLTY TR COM 253868103 477,739 223,798 88.13 57,204 73.53 0.0414
2019-11-08 2019-09-30 13F DIGITAL RLTY TR COM 253868103 253,941 -65,495 -20.50 32,964 -12.39 0.0261
2019-08-12 2019-06-30 13F DIGITAL RLTY TR COM 253868103 319,436 88,207 38.15 37,626 36.74 0.0304
2019-05-13 2019-03-31 13F DIGITAL RLTY TR COM 253868103 231,229 -35,253 -13.23 27,516 -3.09 0.0265
2019-02-12 2018-12-31 13F DIGITAL RLTY TR COM 253868103 266,482 -7,945 -2.90 28,394 -8.02 0.0288
2018-11-13 2018-09-30 13F DIGITAL RLTY TR COM 253868103 274,427 65,448 31.32 30,869 32.39 0.0275
2018-08-10 2018-06-30 13F DIGITAL RLTY TR COM 253868103 208,979 11,150 5.64 23,317 11.84 0.0214
2018-05-11 2018-03-31 13F DIGITAL RLTY TR COM 253868103 197,829 -12,816 -6.08 20,848 -13.10 0.0172
2018-02-12 2017-12-31 13F DIGITAL RLTY TR COM 253868103 210,645 -29,984 -12.46 23,992 -15.74 0.0192
2017-11-13 2017-09-30 13F DIGITAL RLTY TR COM 253868103 240,629 -72,704 -23.20 28,473 -19.55 0.0233
2017-08-11 2017-06-30 13F DIGITAL RLTY TR COM 253868103 313,333 39,591 14.46 35,390 21.52 0.0319
2017-05-12 2017-03-31 13F DIGITAL RLTY TR COM 253868103 273,742 179,588 190.74 29,123 214.81 0.0260
2017-02-10 2016-12-31 13F DIGITAL RLTY TR COM 253868103 94,154 60,680 181.28 9,251 184.56 0.0083
2016-11-10 2016-09-30 13F DIGITAL RLTY TR COM 253868103 33,474 14,850 79.74 3,251 60.15 0.0030
2016-08-12 2016-06-30 13F DIGITAL RLTY TR COM 253868103 18,624 -28,070 -60.11 2,030 -50.86 0.0021
2016-05-13 2016-03-31 13F DIGITAL RLTY TR COM 253868103 46,694 -70,324 -60.10 4,131 -53.32 0.0046
2016-02-12 2015-12-31 13F DIGITAL RLTY TR COM 253868103 117,018 -19,915 -14.54 8,849 -1.06 0.0088
2015-11-13 2015-09-30 13F DIGITAL RLTY TR COM 253868103 136,933 103,819 313.52 8,944 304.89 0.0084
2015-08-13 2015-06-30 13F DIGITAL RLTY TR COM 253868103 33,114 5,142 18.38 2,209 19.66 0.0020
2015-05-14 2015-03-31 13F DIGITAL RLTY TR COM 253868103 27,972 6,530 30.45 1,846 29.91 0.0018
2015-02-17 2014-12-31 13F DIGITAL RLTY TR COM 253868103 21,442 -8,496 -28.38 1,421 -23.93 0.0013
2014-11-14 2014-09-30 13F DIGITAL RLTY TR COM 253868103 29,938 -4,740 -13.67 1,868 -7.66 0.0016
2014-08-14 2014-06-30 13F DIGITAL RLTY TR COM 253868103 34,678 5,229 17.76 2,023 29.43 0.0019
2014-05-15 2014-03-31 13F DIGITAL RLTY TR COM 253868103 29,449 13,388 83.36 1,563 98.10 0.0016
2014-02-14 2013-12-31 13F DIGITAL RLTY TR COM 253868103 16,061 -28,269 -63.77 789 -66.47 0.0007
2013-11-14 2013-09-30 13F DIGITAL RLTY TR COM 253868103 44,330 -53,226 -54.56 2,353 -60.46 0.0022
2013-08-14 2013-06-30 13F DIGITAL RLTY TR COM 253868103 97,556 97,556 5,951 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
(%)
2025-11-10 2025-09-30 13F DIGITAL RLTY TR COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-08-11 2025-06-30 13F DIGITAL RLTY TR COM Call 23,800 4,149 n/a n/a n/a
2021-02-11 2020-12-31 13F DIGITAL RLTY TR COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2020-11-12 2020-09-30 13F DIGITAL RLTY TR COM Call 3,100 -39.22 455 -37.24 n/a n/a n/a
2020-08-12 2020-06-30 13F DIGITAL RLTY TR COM Call 5,100 13.33 725 16.00 n/a n/a n/a
2020-05-12 2020-03-31 13F DIGITAL RLTY TR COM Call 4,500 -2.17 625 13.43 n/a n/a n/a
2020-02-12 2019-12-31 13F DIGITAL RLTY TR COM Call 4,600 -55.34 551 -58.79 n/a n/a n/a
2019-11-08 2019-09-30 13F DIGITAL RLTY TR COM Call 10,300 -54.63 1,337 -49.98 n/a n/a n/a
2019-08-12 2019-06-30 13F DIGITAL RLTY TR COM Call 22,700 4.13 2,673 3.01 n/a n/a n/a
2019-05-13 2019-03-31 13F DIGITAL RLTY TR COM Call 21,800 678.57 2,595 770.81 n/a n/a n/a
2019-02-12 2018-12-31 13F DIGITAL RLTY TR COM Call 2,800 -33.33 298 -36.86 n/a n/a n/a
2018-11-13 2018-09-30 13F DIGITAL RLTY TR COM Call 4,200 -46.15 472 -45.75 n/a n/a n/a
2018-08-10 2018-06-30 13F DIGITAL RLTY TR COM Call 7,800 -7.14 870 -1.69 n/a n/a n/a
2018-05-11 2018-03-31 13F DIGITAL RLTY TR COM Call 8,400 121.05 885 104.39 n/a n/a n/a
2018-02-12 2017-12-31 13F DIGITAL RLTY TR COM Call 3,800 0.00 433 -3.78 n/a n/a n/a
2017-11-13 2017-09-30 13F DIGITAL RLTY TR COM Call 3,800 52.00 450 59.57 n/a n/a n/a
2017-08-11 2017-06-30 13F DIGITAL RLTY TR COM Call 2,500 257.14 282 281.08 n/a n/a n/a
2017-05-12 2017-03-31 13F DIGITAL RLTY TR COM Call 700 16.67 74 25.42 n/a n/a n/a
2017-02-10 2016-12-31 13F DIGITAL RLTY TR COM Call 600 59 n/a n/a n/a
2016-08-12 2016-06-30 13F DIGITAL RLTY TR COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2016-05-13 2016-03-31 13F DIGITAL RLTY TR COM Call 90,700 -49.61 8,026 -41.04 n/a n/a n/a
2016-02-12 2015-12-31 13F DIGITAL RLTY TR COM Call 180,000 -36.78 13,612 -26.81 n/a n/a n/a
2015-11-13 2015-09-30 13F DIGITAL RLTY TR COM Call 284,700 -55.27 18,597 -56.18 n/a n/a n/a
2015-08-13 2015-06-30 13F DIGITAL RLTY TR COM Call 636,500 42,442 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
(%)
2022-05-12 2022-03-31 13F DIGITAL RLTY TR COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2022-02-10 2021-12-31 13F DIGITAL RLTY TR COM Put 5,000 884 n/a n/a n/a
2021-02-11 2020-12-31 13F DIGITAL RLTY TR COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2020-11-12 2020-09-30 13F DIGITAL RLTY TR COM Put 1,300 -69.05 191 -68.01 n/a n/a n/a
2020-08-12 2020-06-30 13F DIGITAL RLTY TR COM Put 4,200 16.67 597 19.40 n/a n/a n/a
2020-05-12 2020-03-31 13F DIGITAL RLTY TR COM Put 3,600 -10.00 500 4.38 n/a n/a n/a
2020-02-12 2019-12-31 13F DIGITAL RLTY TR COM Put 4,000 -83.47 479 -84.75 n/a n/a n/a
2019-11-08 2019-09-30 13F DIGITAL RLTY TR COM Put 24,200 3.42 3,141 13.97 n/a n/a n/a
2019-08-12 2019-06-30 13F DIGITAL RLTY TR COM Put 23,400 -44.94 2,756 -45.51 n/a n/a n/a
2019-05-13 2019-03-31 13F DIGITAL RLTY TR COM Put 42,500 -18.74 5,058 -9.24 n/a n/a n/a
2019-02-12 2018-12-31 13F DIGITAL RLTY TR COM Put 52,300 -4.91 5,573 -9.91 n/a n/a n/a
2018-11-13 2018-09-30 13F DIGITAL RLTY TR COM Put 55,000 1,347.37 6,186 1,358.96 n/a n/a n/a
2018-08-10 2018-06-30 13F DIGITAL RLTY TR COM Put 3,800 -40.62 424 -37.09 n/a n/a n/a
2018-05-11 2018-03-31 13F DIGITAL RLTY TR COM Put 6,400 -57.33 674 -60.56 n/a n/a n/a
2018-02-12 2017-12-31 13F DIGITAL RLTY TR COM Put 15,000 105.48 1,709 97.80 n/a n/a n/a
2017-11-13 2017-09-30 13F DIGITAL RLTY TR COM Put 7,300 135.48 864 146.86 n/a n/a n/a
2017-08-11 2017-06-30 13F DIGITAL RLTY TR COM Put 3,100 933.33 350 993.75 n/a n/a n/a
2017-05-12 2017-03-31 13F DIGITAL RLTY TR COM Put 300 -98.09 32 -97.93 n/a n/a n/a
2017-02-10 2016-12-31 13F DIGITAL RLTY TR COM Put 15,700 44.04 1,543 45.70 n/a n/a n/a
2016-11-10 2016-09-30 13F DIGITAL RLTY TR COM Put 10,900 1,059 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.