SL Green Realty Corp.
MX ˙ BMV ˙ US78440X8873
SecurityMX:SLG / SL Green Realty Corp.
InstitutionJanus Henderson Group Plc
Latest Disclosed Ownership30,043 shares
Latest Disclosed Value $ 1,109,638
Janus Henderson Group Plc ownership in SLG / SL Green Realty Corp.

On May 18, 2026 - Janus Henderson Group Plc filed a 13F-HR/A form disclosing ownership of 30,043 shares of SL Green Realty Corp. (MX:SLG) valued at $1,109,638 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 30,043 shares of SL Green Realty Corp.. This represents a change in shares of 0.00% 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)
2026-05-18 2026-03-31 13F/A-1 SL GREEN RLTY COM 78440X887 30,043 0 0.00 1,110 -19.46 0.0002
2026-05-15 2026-03-31 13F SL GREEN RLTY COM 78440X887 30,043 0 0.00 1,110 -19.46 0.0002
2026-02-17 2025-12-31 13F SL GREEN RLTY COM 78440X887 30,043 0 0.00 1,378 -23.33 0.0006
2025-11-14 2025-09-30 13F SL GREEN RLTY COM 78440X887 30,043 1,620 5.70 1,797 2.16 0.0008
2025-08-14 2025-06-30 13F SL GREEN RLTY COM 78440X887 28,423 -2,502 -8.09 1,758 -1.24 0.0009
2025-05-15 2025-03-31 13F SL GREEN RLTY COM 78440X887 30,925 0 0.00 1,780 -15.28 0.0010
2025-02-14 2024-12-31 13F SL GREEN RLTY COM 78440X887 30,925 0 0.00 2,101 -2.37 0.0011
2024-11-14 2024-09-30 13F SL GREEN RLTY COM 78440X887 30,925 0 0.00 2,153 22.83 0.0011
2024-08-14 2024-06-30 13F SL GREEN RLTY COM 78440X887 30,925 -332 -1.06 1,752 1.74 0.0009
2024-05-15 2024-03-31 13F SL GREEN RLTY COM 78440X887 31,257 1 0.00 1,722 22.04 0.0009
2024-02-14 2023-12-31 13F SL GREEN RLTY COM 78440X887 31,256 -47 -0.15 1,411 20.80 0.0008
2023-11-14 2023-09-30 13F SL GREEN RLTY COM 78440X887 31,303 0 0.00 1,168 24.26 0.0008
2023-08-14 2023-06-30 13F SL GREEN RLTY COM 78440X887 31,303 -36 -0.11 940 27.72 0.0006
2023-05-15 2023-03-31 13F SL GREEN RLTY COM 78440X887 31,339 19,974 175.75 737 92.17 0.0005
2023-02-14 2022-12-31 13F SL GREEN RLTY COM 78440X887 11,365 -68,839 -85.83 383 -88.11 0.0003
2023-01-13 2022-09-30 13F/A-1 SL GREEN RLTY COM 78440X887 80,204 24 0.03 3,221 -12.95 0.0024
2022-11-14 2022-09-30 13F SL GREEN RLTY COM 78440X887 80,204 24 3,221 0.0008
2022-08-15 2022-06-30 13F SL GREEN RLTY COM 78440X887 80,180 -2,992 -3.60 3,700 -45.21 0.0026
2022-05-16 2022-03-31 13F SL GREEN RLTY COM 78440X887 83,172 -37 -0.04 6,753 13.19 0.0033
2022-02-14 2021-12-31 13F SL GREEN RLTY COM 78440X804 83,209 6,219 8.08 5,966 9.41 0.0025
2021-11-16 2021-09-30 13F SL GREEN RLTY COM 78440X804 76,990 10,425 15.66 5,453 2.52 0.0024
2021-08-16 2021-06-30 13F SL GREEN RLTY COM 78440X804 66,565 66,565 5,319 0.0023
2021-02-16 2020-12-31 13F SL GREEN RLTY COM 78440X101 0 -609,000 -100.00 0 -100.00
2020-11-16 2020-09-30 13F SL GREEN RLTY COM 78440X101 609,000 158,666 35.23 28,233 27.15 0.0147
2020-08-14 2020-06-30 13F SL GREEN RLTY COM 78440X101 450,334 14,220 3.26 22,204 18.23 0.0125
2020-05-14 2020-03-31 13F SL GREEN RLTY COM 78440X101 436,114 151,546 53.25 18,781 -28.16 0.0129
2020-02-18 2019-12-31 13F SL GREEN RLTY COM 78440X101 284,568 237,857 509.21 26,142 584.52 0.0134
2019-11-14 2019-09-30 13F SL GREEN RLTY COM 78440X101 46,711 2,862 6.53 3,819 8.49 0.0021
2019-07-31 2019-06-30 13F SL GREEN RLTY COM 78440X101 43,849 17,361 65.54 3,520 47.77 0.0019
2019-04-30 2019-03-31 13F SL GREEN RLTY COM 78440X101 26,488 474 1.82 2,382 15.80 0.0013
2019-02-06 2018-12-31 13F SL GREEN RLTY COM 78440X101 26,014 -4,581 -14.97 2,057 -31.04 0.0013
2018-11-09 2018-09-30 13F SL GREEN RLTY COM 78440X101 30,595 3,070 11.15 2,983 7.81 0.0016
2018-08-10 2018-06-30 13F SL GREEN RLTY COM 78440X101 27,525 2,744 11.07 2,767 15.34 0.0016
2018-05-14 2018-03-31 13F SL GREEN RLTY COM 78440X101 24,781 -1,976 -7.38 2,399 -11.18 0.0014
2018-03-12 2017-12-31 13F/A-1 SL GREEN RLTY COM 78440X101 26,757 -1,812 -6.34 2,701 -6.67 0.0017
2018-02-09 2017-12-31 13F SL GREEN RLTY COM 78440X101 26,757 -1,812 2,701
2017-11-14 2017-09-30 13F SL GREEN RLTY COM 78440X101 28,569 8,191 40.20 2,894 34.23 0.0019
2017-08-17 2017-06-30 13F/A-1 SL GREEN RLTY COM 78440X101 20,378 6,071 42.43 2,156 41.38 0.0015
2017-08-14 2017-06-30 13F SL GREEN RLTY COM 78440X101 20,378 6,071 2,156
2017-05-03 2017-03-31 13F SL GREEN RLTY COM 78440X101 14,307 0 0.00 1,525 -0.91 0.0107
2017-01-30 2016-12-31 13F SL GREEN RLTY COM 78440X101 14,307 1,774 14.15 1,539 13.58 0.0114
2016-10-24 2016-09-30 13F SL GREEN RLTY COM 78440X101 12,533 0 0.00 1,355 1.57 0.0100
2016-07-29 2016-06-30 13F SL GREEN RLTY COM 78440X101 12,533 0 0.00 1,334 9.88 0.0111
2016-05-12 2016-03-31 13F SL GREEN RLTY COM 78440X101 12,533 0 0.00 1,214 -14.27 0.0098
2016-02-03 2015-12-31 13F SL GREEN RLTY COM 78440X101 12,533 -119,230 -90.49 1,416 -90.06 0.0114
2015-11-16 2015-09-30 13F SL GREEN RLTY COM 78440X101 131,763 -20,200 -13.29 14,250 -14.66 0.1255
2015-08-17 2015-06-30 13F SL GREEN RLTY COM 78440X101 151,963 19,558 14.77 16,697 -1.80 0.1312
2015-06-02 2015-03-31 13F/A-1 SL GREEN RLTY COM 78440X101 132,405 -34,100 -20.48 17,003 -14.23 0.1312
2015-05-15 2015-03-31 13F SL GREEN RLTY COM 78440X101 132,405 17,003
2015-02-12 2014-12-31 13F SL GREEN RLTY COM 78440X101 166,505 -12,600 -7.03 19,825 9.25 0.1429
2014-11-12 2014-09-30 13F SL GREEN RLTY COM 78440X101 179,105 -1,900 -1.05 18,146 -8.34 0.1707
2014-08-13 2014-06-30 13F SL GREEN RLTY COM 78440X101 181,005 -74,065 -29.04 19,797 -22.88 0.1849
2014-05-08 2014-03-31 13F SL GREEN RLTY COM 78440X101 255,070 -57,985 -18.52 25,670 -11.21 0.2499
2014-01-14 2013-12-31 13F SL GREEN RLTY COM 78440X101 313,055 42,900 15.88 28,911 20.50 0.2921
2013-11-12 2013-09-30 13F SL GREEN RLTY COM 78440X101 270,155 -101,297 -27.27 23,992 -26.51 0.2647
2013-08-15 2013-06-30 13F SL GREEN RLTY COM 78440X101 371,452 371,452 32,647 0.3817
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.