Realty Income Corporation
US ˙ NYSE ˙ US7561091049

SecurityO / Realty Income Corporation
InstitutionSei Investments Co
Latest Disclosed Ownership1,706,418 shares
Latest Disclosed Value $ 96,190,144
Sei Investments Co ownership in O / Realty Income Corporation

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 1,706,418 shares of Realty Income Corporation (US:O) valued at $96,190,783 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 1,991,113 shares of Realty Income Corporation. This represents a change in shares of -14.30% during the quarter. The current value of the position is $101,907,283 USD.

Sei Investments Co has a history of taking positions in derivatives of the underlying security (O) in the form of stock options.

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.

O / Realty Income Corporation 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)
2026-02-13 2025-12-31 13F REALTY INCOME COM 756109104 1,706,418 -284,695 -14.30 96,190 -20.53 0.0949
2025-11-13 2025-09-30 13F REALTY INCOME COM 756109104 1,991,113 -134,825 -6.34 121,041 -1.17 0.1302
2025-08-14 2025-06-30 13F REALTY INCOME COM 756109104 2,125,938 -120,982 -5.38 122,476 -6.04 0.1420
2025-05-14 2025-03-31 13F/A-1 REALTY INCOME COM 756109104 2,246,920 -158,950 -6.61 130,344 1.44 0.1678
2025-05-13 2025-03-31 13F REALTY INCOME COM 756109104 2,413,429 7,559 129,210 0.1405
2025-02-11 2024-12-31 13F REALTY INCOME COM 756109104 2,405,870 -786,167 -24.63 128,496 -36.53 0.1650
2024-11-12 2024-09-30 13F REALTY INCOME COM 756109104 3,192,037 15,721 0.49 202,437 20.66 0.2629
2024-08-13 2024-06-30 13F REALTY INCOME COM 756109104 3,176,316 -216,079 -6.37 167,774 -8.58 0.2377
2024-05-07 2024-03-31 13F REALTY INCOME COM 756109104 3,392,395 527,361 18.41 183,529 11.56 0.2689
2024-02-14 2023-12-31 13F REALTY INCOME COM 756109104 2,865,034 425,677 17.45 164,510 35.04 0.2641
2023-11-14 2023-09-30 13F REALTY INCOME COM 756109104 2,439,357 -53,799 -2.16 121,822 -18.28 0.2189
2023-08-11 2023-06-30 13F REALTY INCOME COM 756109104 2,493,156 106,562 4.47 149,067 -1.36 0.2600
2023-05-12 2023-03-31 13F REALTY INCOME COM 756109104 2,386,594 562,141 30.81 151,119 30.59 0.2807
2023-02-10 2022-12-31 13F REALTY INCOME COM 756109104 1,824,453 762,263 71.76 115,725 87.20 0.2572
2022-11-14 2022-09-30 13F REALTY INCOME COM 756109104 1,062,190 113,679 11.98 61,819 -4.54 0.1379
2022-08-15 2022-06-30 13F REALTY INCOME COM 756109104 948,511 250,064 35.80 64,760 33.84 0.1399
2022-05-13 2022-03-31 13F REALTY INCOME COM 756109104 698,447 85,968 14.04 48,386 10.27 0.0973
2022-02-14 2021-12-31 13F REALTY INCOME COM 756109104 612,479 508,781 490.64 43,881 552.31 0.0823
2021-11-12 2021-09-30 13F REALTY INCOME COM 756109104 103,698 35,033 51.02 6,727 46.81 0.0141
2021-08-06 2021-06-30 13F REALTY INCOME COM 756109104 68,665 -335,288 -83.00 4,582 -82.14 0.0102
2021-05-12 2021-03-31 13F REALTY INCOME COM 756109104 403,953 -102,361 -20.22 25,650 -18.51 0.0646
2021-02-08 2020-12-31 13F REALTY INCOME COM 756109104 506,314 13,233 2.68 31,477 5.09 0.0814
2020-12-04 2020-09-30 13F/A-1 REALTY INCOME COM 756109104 493,081 468,162 1,878.74 29,953 1,921.12 0.0867
2020-11-06 2020-09-30 13F REALTY INCOME COM 756109104 493,271 468,352 29,965 72,149.0576
2020-08-17 2020-06-30 13F/A-1 REALTY INCOME COM 756109104 24,919 -5,356 -17.69 1,482 -1.07 0.0046
2020-08-11 2020-06-30 13F REALTY INCOME COM 756109104 138,815 108,540 10,182 27,619.2170
2020-05-14 2020-03-31 13F REALTY INCOME COM 756109104 30,275 -109,493 -78.34 1,498 -85.46 0.0055
2020-02-06 2019-12-31 13F REALTY INCOME COM 756109104 139,768 -137,550 -49.60 10,300 -51.56 0.0307
2019-11-12 2019-09-30 13F REALTY INCOME COM 756109104 277,318 99,497 55.95 21,265 73.39 0.0544
2019-08-14 2019-06-30 13F REALTY INCOME COM 756109104 177,821 -30,245 -14.54 12,264 -19.87 0.0401
2019-05-15 2019-03-31 13F REALTY INCOME COM 756109104 208,066 94,344 82.96 15,306 136.09 0.0514
2019-02-13 2018-12-31 13F REALTY INCOME COM 756109104 113,722 2,271 2.04 6,483 2.26 0.0231
2018-11-08 2018-09-30 13F REALTY INCOME COM 756109104 111,451 -95,862 -46.24 6,340 -43.14 0.0230
2018-08-03 2018-06-30 13F REALTY INCOME COM 756109104 207,313 -117,170 -36.11 11,151 -33.57 0.0379
2018-05-11 2018-03-31 13F REALTY INCOME COM 756109104 324,483 84,172 35.03 16,786 22.51 0.0643
2018-02-08 2017-12-31 13F REALTY INCOME COM 756109104 240,311 37,961 18.76 13,702 18.41 0.0476
2017-11-06 2017-09-30 13F REALTY INCOME COM 756109104 202,350 43,510 27.39 11,572 32.03 0.0411
2017-07-31 2017-06-30 13F REALTY INCOME COM 756109104 158,840 -23,105 -12.70 8,765 -19.07 0.0349
2017-05-05 2017-03-31 13F REALTY INCOME COM 756109104 181,945 135,169 288.97 10,831 302.94 0.0475
2017-02-02 2016-12-31 13F REALTY INCOME COM 756109104 46,776 3,110 7.12 2,688 -8.01 0.0130
2016-11-04 2016-09-30 13F REALTY INCOME COM 756109104 43,666 6,388 17.14 2,922 12.99 0.0148
2016-08-11 2016-06-30 13F REALTY INCOME COM 756109104 37,278 33,569 905.07 2,586 1,014.66 0.0155
2016-05-10 2016-03-31 13F/A-1 REALTY INCOME COM 756109104 3,709 -63,292 -94.46 232 -93.29 0.0014
2016-02-03 2015-12-31 13F REALTY INCOME COM 756109104 67,001 4,188 6.67 3,460 16.22 0.0211
2015-11-02 2015-09-30 13F/A-1 REALTY INCOME COM 756109104 62,813 31,399 99.95 2,977 113.56 0.0273
2015-10-30 2015-09-30 13F REALTY INCOME COM 756109104 62,813 2,978
2015-08-07 2015-06-30 13F/A-1 REALPAGE PUT 756109104 0 -2,162 -100.00 0 -100.00
2015-08-07 2015-06-30 13F/A-1 REALTY INCOME COM 756109104 31,414 29,252 1,353.01 1,394 1,144.64 0.0126
2015-08-04 2015-06-30 13F REALTY INCOME COM 756109104 31,414 29,252 1,394 0.0126
2015-05-14 2015-03-31 13F/A-1 REALTY INCOME COM 756109104 2,162 862 66.31 112 83.61 0.0010
2015-05-01 2015-03-31 13F REALPAGE PUT 756109104 2,162 2,162 112 0.0010
2015-02-10 2014-12-31 13F REALTY INCOME COM 756109104 1,300 1,300 61 0.0005
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
(%)
2015-08-07 2015-06-30 13F/A REALPAGE PUT 0 -100.00 0 -100.00 n/a n/a n/a
2015-05-01 2015-03-31 13F REALPAGE PUT 2,162 112 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.