SL Green Realty Corp.
MX ˙ BMV ˙ US78440X8873
SecurityMX:SLG / SL Green Realty Corp.
InstitutionNorthern Trust Corp
Latest Disclosed Ownership1,453,206 shares
Latest Disclosed Value $ 53,681,430
Northern Trust Corp reports 2.46% decrease in ownership of SLG / SL Green Realty Corp.

On May 14, 2026 - Northern Trust Corp filed a 13F-HR form disclosing ownership of 1,453,206 shares of SL Green Realty Corp. (MX:SLG) valued at $53,681,430 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 1,489,893 shares of SL Green Realty Corp.. This represents a change in shares of -2.46% 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)
2026-05-14 2026-03-31 13F SL GREEN RLTY COM 78440X887 1,453,206 -36,687 -2.46 53,681 -21.45 0.0015
2026-02-17 2025-12-31 13F SL GREEN RLTY COM 78440X887 1,489,893 -54,094 -3.50 68,341 -25.99 0.0018
2025-11-14 2025-09-30 13F SL GREEN RLTY COM 78440X887 1,543,987 54,890 3.69 92,346 0.18 0.0027
2025-08-13 2025-06-30 13F SL GREEN RLTY COM 78440X887 1,489,097 30,117 2.06 92,175 9.49 0.0127
2025-05-13 2025-03-31 13F SL GREEN RLTY COM 78440X887 1,458,980 29,344 2.05 84,183 -13.30 0.0125
2025-02-14 2024-12-31 13F SL GREEN RLTY COM 78440X887 1,429,636 634,788 79.86 97,101 75.50 0.0137
2024-11-13 2024-09-30 13F SL GREEN RLTY COM 78440X887 794,848 20,921 2.70 55,329 26.22 0.0091
2024-08-14 2024-06-30 13F SL GREEN RLTY COM 78440X887 773,927 -33,115 -4.10 43,835 -1.48 0.0074
2024-05-14 2024-03-31 13F SL GREEN RLTY COM 78440X887 807,042 20,065 2.55 44,492 25.16 0.0077
2024-02-13 2023-12-31 13F SL GREEN RLTY COM 78440X887 786,977 -386,308 -32.93 35,548 -18.77 0.0064
2023-11-13 2023-09-30 13F SL GREEN RLTY COM 78440X887 1,173,285 -54,487 -4.44 43,764 18.62 0.0085
2023-08-11 2023-06-30 13F SL GREEN RLTY COM 78440X887 1,227,772 574,352 87.90 36,895 140.07 0.0071
2023-05-15 2023-03-31 13F SL GREEN RLTY COM 78440X887 653,420 -223,549 -25.49 15,368 -48.03 0.0030
2023-02-13 2022-12-31 13F SL GREEN RLTY COM 78440X887 876,969 -231,181 -20.86 29,571 -33.55 0.0062
2022-11-14 2022-09-30 13F SL GREEN RLTY COM 78440X887 1,108,150 117,311 11.84 44,503 -2.68 0.0102
2022-08-12 2022-06-30 13F SL GREEN RLTY COM 78440X887 990,839 -108,396 -9.86 45,727 -48.76 0.0098
2022-05-13 2022-03-31 13F SL GREEN RLTY COM 78440X887 1,099,235 131,984 13.65 89,236 28.67 0.0157
2022-02-08 2021-12-31 13F SL GREEN RLTY COM 78440X804 967,251 -39,304 -3.90 69,351 -2.74 0.0114
2021-11-15 2021-09-30 13F SL GREEN RLTY COM 78440X804 1,006,555 -46,480 -4.41 71,305 -15.36 0.0126
2021-08-13 2021-06-30 13F SL GREEN RLTY COM 78440X804 1,053,035 -53,844 -4.86 84,243 8.74 0.0148
2021-05-12 2021-03-31 13F SL GREEN RLTY COM 78440X804 1,106,879 -127,366 -10.32 77,471 5.35 0.0144
2021-02-11 2020-12-31 13F SL GREEN RLTY COM 78440X101 1,234,245 -106,576 -7.95 73,536 18.27 0.0143
2020-11-16 2020-09-30 13F SL GREEN RLTY COM 78440X101 1,340,821 30,033 2.29 62,174 -3.77 0.0136
2020-08-14 2020-06-30 13F SL GREEN RLTY COM 78440X101 1,310,788 -207,413 -13.66 64,608 -1.26 0.0153
2020-05-14 2020-03-31 13F SL GREEN RLTY COM 78440X101 1,518,201 43,566 2.95 65,434 -51.71 0.0188
2020-02-14 2019-12-31 13F SL GREEN RLTY COM 78440X101 1,474,635 175,134 13.48 135,490 27.54 0.0303
2019-11-13 2019-09-30 13F SL GREEN RLTY COM 78440X101 1,299,501 -12,238 -0.93 106,233 0.77 0.0254
2019-08-13 2019-06-30 13F SL GREEN RLTY COM 78440X101 1,311,739 13,695 1.06 105,424 -9.68 0.0250
2019-05-13 2019-03-31 13F SL GREEN RLTY COM 78440X101 1,298,044 -43,225 -3.22 116,719 10.04 0.0288
2019-02-12 2018-12-31 13F SL GREEN RLTY COM 78440X101 1,341,269 -81,805 -5.75 106,067 -23.58 0.0297
2018-11-14 2018-09-30 13F SL GREEN RLTY COM 78440X101 1,423,074 -78,226 -5.21 138,794 -8.04 0.0340
2018-09-18 2018-06-30 13F/A-1 SL GREEN RLTY COM 78440X101 1,501,300 -27,090 -1.77 150,926 1.98 0.0383
2018-08-14 2018-06-30 13F SL GREEN RLTY COM 78440X101 1,507,944 -20,446 151,594
2018-05-09 2018-03-31 13F SL GREEN RLTY COM 78440X101 1,528,390 -52,137 -3.30 147,994 -7.23 0.0385
2018-02-14 2017-12-31 13F SL GREEN RLTY COM 78440X101 1,580,527 7,222 0.46 159,522 0.07 0.0404
2017-11-13 2017-09-30 13F SL GREEN RLTY COM 78440X101 1,573,305 -13,270 -0.84 159,407 -5.04 0.0415
2017-08-11 2017-06-30 13F SL GREEN RLTY COM 78440X101 1,586,575 28,692 1.84 167,860 1.06 0.0469
2017-05-12 2017-03-31 13F SL GREEN RLTY COM 78440X101 1,557,883 47,145 3.12 166,102 2.23 0.0479
2017-02-13 2016-12-31 13F SL GREEN RLTY COM 78440X101 1,510,738 -236,545 -13.54 162,480 -13.98 0.0498
2016-11-09 2016-09-30 13F SL GREEN RLTY COM 78440X101 1,747,283 149,390 9.35 188,882 11.02 0.0588
2016-08-12 2016-06-30 13F SL GREEN RLTY COM 78440X101 1,597,893 17,918 1.13 170,128 9.33 0.0552
2016-08-19 2016-03-31 13F/A-1 SL GREEN RLTY COM 78440X101 1,579,975 -3,120 -0.20 155,611 -13.00 0.0516
2016-05-13 2016-03-31 13F Sl Green Rlty REIT 78440X101 1,579,975 153,068
2016-02-12 2015-12-31 13F Sl Green Rlty REIT 78440X101 1,583,095 -207,127 -11.57 178,858 -7.63 0.0593
2015-11-12 2015-09-30 13F Sl Green Rlty REIT 78440X101 1,790,222 1,790,222 0.00 193,631 0.0646
2015-08-13 2015-06-30 13F Sl Green Rlty REIT 78440X101 0 -1,772,594 -100.00 0 -100.00
2015-05-14 2015-03-31 13F Sl Green Rlty REIT 78440X101 1,772,594 396,475 28.81 227,566 38.94 0.0684
2015-02-12 2014-12-31 13F Sl Green Rlty REIT 78440X101 1,376,119 104,314 8.20 163,785 27.10 0.0494
2014-11-13 2014-09-30 13F Sl Green Rlty REIT 78440X101 1,271,805 78,300 6.56 128,859 -1.32 0.0405
2014-08-14 2014-06-30 13F SL GREEN RLTY com 78440X101 1,193,505 -45,927 -3.71 130,582 4.71 0.0407
2014-05-14 2014-03-31 13F SL GREEN RLTY REIT 78440X101 1,239,432 66,812 5.70 124,712 15.13 0.0392
2014-02-21 2013-12-31 13F/A-1 SL GREEN RLTY COM 78440X101 1,172,620 52,572 4.69 108,327 8.86 0.0347
2014-02-12 2013-12-31 13F SL GREEN RLTY COM 78440X101 1,172,620 108,327
2013-11-13 2013-09-30 13F SL GREEN RLTY COM 78440X101 1,120,048 -6,895 -0.61 99,506 0.12 0.0350
2013-08-09 2013-06-30 13F SL GREEN RLTY COM 78440X101 1,126,943 1,126,943 99,385 0.0360
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.