Realty Income Corporation
MX ˙ BMV ˙ US7561091049
SecurityMX:O / Realty Income Corporation
InstitutionMercer Global Advisors Inc /adv
Latest Disclosed Ownership144,870 shares
Latest Disclosed Value $ 8,863,134
Mercer Global Advisors Inc /adv reports 7.74% increase in ownership of O / Realty Income Corporation

On May 15, 2026 - Mercer Global Advisors Inc /adv filed a 13F-HR form disclosing ownership of 144,870 shares of Realty Income Corporation (MX:O) valued at $8,863,134 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 134,460 shares of Realty Income Corporation. This represents a change in shares of 7.74% 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)
2026-05-15 2026-03-31 13F REALTY INCOME COM 756109104 144,870 10,410 7.74 8,863 16.94 0.0131
2026-02-17 2025-12-31 13F REALTY INCOME COM 756109104 134,460 7,632 6.02 7,580 -1.69 0.0116
2025-11-14 2025-09-30 13F REALTY INCOME COM 756109104 126,828 10,678 9.19 7,710 15.21 0.0129
2025-08-14 2025-06-30 13F REALTY INCOME COM 756109104 116,150 5,552 5.02 6,691 5.20 0.0136
2025-05-15 2025-03-31 13F REALTY INCOME COM 756109104 110,598 -6,665 -5.68 6,361 1.55 0.0146
2025-02-14 2024-12-31 13F REALTY INCOME COM 756109104 117,263 -37,392 -24.18 6,263 -35.82 0.0153
2024-11-14 2024-09-30 13F REALTY INCOME COM 756109104 154,655 -5,387 -3.37 9,758 47.45 0.0228
2024-08-12 2024-06-30 13F REALTY INCOME COM 756109104 160,042 337 0.21 6,618 82,625.00 0.0180
2024-05-15 2024-03-31 13F REALTY INCOME COM 756109104 159,705 46,955 41.65 9 33.33 0.0246
2024-02-15 2023-12-31 13F REALTY INCOME COM 756109104 112,750 53,655 90.79 6 200.00 0.0195
2023-11-15 2023-09-30 13F/A-1 REALTY INCOME COM 756109104 59,095 9,137 18.29 3 0.00 0.0112
2023-11-14 2023-09-30 13F REALTY INCOME COM 756109104 59,095 9,137 3 0.0112
2023-08-14 2023-06-30 13F REALTY INCOME COM 756109104 49,958 -8,106 -13.96 3 -33.33 0.0119
2023-05-16 2023-03-31 13F REALTY INCOME COM 756109104 58,064 2,237 4.01 4 0.00 0.0167
2023-02-09 2022-12-31 13F REALTY INCOME COM 756109104 55,827 3,412 6.51 4 -99.90 0.0177
2022-11-15 2022-09-30 13F REALTY INCOME COM 756109104 52,415 8,476 19.29 3,050 1.70 0.0181
2022-08-10 2022-06-30 13F REALTY INCOME COM 756109104 43,939 -1,339 -2.96 2,999 -4.43 0.0184
2022-05-10 2022-03-31 13F REALTY INCOME COM 756109104 45,278 -9,005 -16.59 3,138 -19.25 0.0185
2022-02-04 2021-12-31 13F REALTY INCOME COM 756109104 54,283 17,017 45.66 3,886 60.78 0.0240
2021-11-10 2021-09-30 13F REALTY INCOME COM 756109104 37,266 19,095 105.09 2,417 99.26 0.0169
2021-08-10 2021-06-30 13F REALTY INCOME COM 756109104 18,171 5,108 39.10 1,213 46.14 0.0093
2021-08-10 2021-03-31 13F/A-1 REALTY INCOME COM 756109104 13,063 6,173 89.59 830 93.93 0.0075
2021-05-11 2021-03-31 13F REALTY INCOME COM 756109104 12,063 5,173 766 0.0073
2021-02-12 2020-12-31 13F REALTY INCOME COM 756109104 6,890 -252 -3.53 428 -1.38 0.0053
2020-12-10 2020-09-30 13F REALTY INCOME COM 756109104 7,142 -5,067 -41.50 434 -40.22 0.0065
2020-08-10 2020-06-30 13F REALTY INCOME COM 756109104 12,209 -2,054 -14.40 726 2.11 0.0132
2020-05-18 2020-03-31 13F REALTY INCOME COM 756109104 14,263 -12,864 -47.42 711 -64.40 0.0156
2020-02-13 2019-12-31 13F REALTY INCOME CORP COM COM 756109104 27,127 -3,485 -11.38 1,997 -14.91 0.0399
2019-11-12 2019-09-30 13F REALTY INCOME CORP COM COM 756109104 30,612 3,300 12.08 2,347 24.58 0.0552
2019-08-14 2019-06-30 13F REALTY INCOME CORP COM COM 756109104 27,312 2,216 8.83 1,884 2.06 0.0499
2019-04-23 2019-03-31 13F/A-1 REALTY INCOME CORP COM COM 756109104 25,096 25,096 1,846 0.0664
2019-04-12 2019-03-31 13F REALTY INCOME CORP COM COM 756109104 26,231 1,654 0.0881
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.