Digital Realty Trust, Inc.
US ˙ NYSE ˙ US2538681030

SecurityDLR / Digital Realty Trust, Inc.
InstitutionHarbor Advisors LLC
Latest Disclosed Ownership25,552 shares
Latest Disclosed Value $ 4,604,726
Harbor Advisors LLC ownership in DLR / Digital Realty Trust, Inc.

On May 7, 2026 - Harbor Advisors LLC filed a 13F-HR form disclosing ownership of 25,552 shares of Digital Realty Trust, Inc. (US:DLR) valued at $4,604,726 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 30, 2026 disclosing 25,552 shares of Digital Realty Trust, Inc.. This represents a change in shares of 0.00% during the quarter. The current value of the position is $4,821,407 USD.

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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-07 2026-03-31 13F DIGITAL RLTY TR COM 253868103 25,552 0 0.00 4,605 16.47 0.6653
2026-01-30 2025-12-31 13F DIGITAL RLTY TR COM 253868103 25,552 0 0.00 3,953 -10.50 0.5937
2025-11-12 2025-09-30 13F DIGITAL RLTY TR COM 253868103 25,552 0 0.00 4,417 -0.83 0.6813
2025-08-13 2025-06-30 13F DIGITAL RLTY TR COM 253868103 25,552 0 0.00 4,454 21.66 0.7290
2025-05-15 2025-03-31 13F DIGITAL RLTY TR COM 253868103 25,552 0 0.00 3,661 -19.20 0.6357
2025-02-11 2024-12-31 13F DIGITAL RLTY TR COM 253868103 25,552 0 0.00 4,531 9.58 0.7119
2024-11-14 2024-09-30 13F DIGITAL RLTY TR COM 253868103 25,552 0 0.00 4,135 6.44 0.6920
2024-07-30 2024-06-30 13F DIGITAL RLTY TR COM 253868103 25,552 0 0.00 3,885 5.57 0.7124
2024-05-01 2024-03-31 13F DIGITAL RLTY TR COM 253868103 25,552 -3,185 -11.08 3,681 -4.84 0.6761
2024-02-01 2023-12-31 13F DIGITAL RLTY TR COM 253868103 28,737 0 0.00 3,867 11.22 0.7395
2023-11-07 2023-09-30 13F DIGITAL RLTY TR COM 253868103 28,737 0 0.00 3,478 6.27 0.7450
2023-08-15 2023-06-30 13F/A-1 DIGITAL RLTY TR COM 253868103 28,737 0 0.00 3,272 15.82 0.6955
2023-08-01 2023-06-30 13F DIGITAL RLTY TR COM 253868103 28,737 3,272
2023-05-11 2023-03-31 13F DIGITAL RLTY TR COM 253868103 28,737 -13,893 -32.59 2,825 -33.90 0.6611
2023-02-13 2022-12-31 13F DIGITAL RLTY TR COM 253868103 42,630 1 0.00 4,275 1.09 1.0670
2022-11-07 2022-09-30 13F DIGITAL RLTY TR COM 253868103 42,629 0 0.00 4,228 -23.61 1.1376
2022-08-05 2022-06-30 13F DIGITAL RLTY TR COM 253868103 42,629 0 0.00 5,535 -8.44 1.3437
2022-05-16 2022-03-31 13F DIGITAL RLTY TR COM 253868103 42,629 -1 -0.00 6,045 -19.83 1.2395
2022-02-14 2021-12-31 13F DIGITAL RLTY TR COM 253868103 42,630 0 0.00 7,540 22.44 1.4023
2021-10-29 2021-09-30 13F DIGITAL RLTY TR COM 253868103 42,630 0 0.00 6,158 -3.99 1.2318
2021-08-03 2021-06-30 13F DIGITAL RLTY TR COM 253868103 42,630 0 0.00 6,414 6.83 1.2685
2021-05-04 2021-03-31 13F DIGITAL RLTY TR COM 253868103 42,630 -93,035 -68.58 6,004 -68.28 1.3311
2021-02-11 2020-12-31 13F DIGITAL RLTY TR COM 253868103 135,665 0 0.00 18,927 -4.94 4.2382
2020-11-09 2020-09-30 13F DIGITAL RLTY TR COM 253868103 135,665 0 0.00 19,910 3.27 4.6790
2020-08-03 2020-06-30 13F DIGITAL RLTY TR COM 253868103 135,665 1 0.00 19,279 2.30 4.9411
2020-05-21 2020-03-31 13F DIGITAL RLTY TR COM 253868103 135,664 131,664 3,291.60 18,845 3,834.24 5.7188
2020-02-13 2019-12-31 13F DIGITAL RLTY TR COM 253868103 4,000 0 0.00 479 -7.71 0.1298
2019-11-13 2019-09-30 13F DIGITAL RLTY TR COM 253868103 4,000 0 0.00 519 10.19 0.1485
2019-08-14 2019-06-30 13F DIGITAL RLTY TR COM 253868103 4,000 0 0.00 471 -1.05 0.1408
2019-05-15 2019-03-31 13F DIGITAL RLTY TR COM 253868103 4,000 0 0.00 476 11.74 0.1534
2019-02-15 2018-12-31 13F DIGITAL RLTY TR COM 253868103 4,000 0 0.00 426 -5.33 0.1657
2018-11-14 2018-09-30 13F DIGITAL RLTY TR COM 253868103 4,000 0 0.00 450 0.90 0.1397
2018-08-07 2018-06-30 13F DIGITAL RLTY TR COM 253868103 4,000 0 0.00 446 5.69 0.1436
2018-05-11 2018-03-31 13F DIGITAL RLTY TR COM 253868103 4,000 0 0.00 422 -7.46 0.1421
2018-02-07 2017-12-31 13F DIGITAL RLTY TR COM 253868103 4,000 0 0.00 456 -3.59 0.1549
2017-10-26 2017-09-30 13F DIGITAL RLTY TR COM 253868103 4,000 0 0.00 473 4.65 0.1732
2017-08-14 2017-06-30 13F DIGITAL RLTY TR COM 253868103 4,000 0 0.00 452 6.10 0.1788
2017-05-15 2017-03-31 13F DIGITAL RLTY TR COM 253868103 4,000 0 0.00 426 8.40 0.1814
2017-01-30 2016-12-31 13F DIGITAL RLTY TR COM 253868103 4,000 4,000 393 0.1884
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.