SL Green Realty Corp.
MX ˙ BMV ˙ US78440X8873
SecurityMX:SLG / SL Green Realty Corp.
InstitutionQuadrant Capital Group Llc
Latest Disclosed Ownership1,814 shares
Latest Disclosed Value $ 67,010
Quadrant Capital Group Llc reports 250.87% increase in ownership of SLG / SL Green Realty Corp.

On May 13, 2026 - Quadrant Capital Group Llc filed a 13F-HR/A form disclosing ownership of 1,814 shares of SL Green Realty Corp. (MX:SLG) valued at $67,010 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 517 shares of SL Green Realty Corp.. This represents a change in shares of 250.87% 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)
2026-05-13 2026-03-31 13F/A-1 SL GREEN RLTY COM 78440X887 1,814 1,297 250.87 67 191.30 0.0020
2026-05-11 2026-03-31 13F SL GREEN RLTY COM 78440X887 1,814 1,297 49 0.0369
2026-02-12 2025-12-31 13F SL GREEN RLTY COM 78440X887 517 -363 -41.25 24 -55.77 0.0007
2025-11-13 2025-09-30 13F SL GREEN RLTY COM 78440X887 880 880 53 0.0017
2025-08-13 2025-06-30 13F SL GREEN RLTY COM 78440X887 0 -724 -100.00 0 -100.00
2025-05-13 2025-03-31 13F SL GREEN RLTY COM 78440X887 724 -40 -5.24 42 -19.61 0.0016
2025-02-13 2024-12-31 13F SL GREEN RLTY COM 78440X887 764 208 37.41 52 34.21 0.0036
2024-11-12 2024-09-30 13F SL GREEN RLTY COM 78440X887 556 0 0.00 39 22.58 0.0027
2024-08-12 2024-06-30 13F SL GREEN RLTY COM 78440X887 556 320 135.59 31 138.46 0.0023
2024-05-15 2024-03-31 13F SL GREEN RLTY COM 78440X887 236 4 1.72 13 30.00 0.0010
2024-02-08 2023-12-31 13F SL GREEN RLTY COM 78440X887 232 -423 -64.58 10 -58.33 0.0009
2023-11-14 2023-09-30 13F SL GREEN RLTY COM 78440X887 655 -104 -13.70 24 9.09 0.0024
2023-08-10 2023-06-30 13F SL GREEN RLTY COM 78440X887 759 60 8.58 23 37.50 0.0023
2023-05-11 2023-03-31 13F SL GREEN RLTY COM 78440X887 699 -25 -3.45 16 -33.33 0.0017
2023-02-13 2022-12-31 13F SL GREEN RLTY COM 78440X887 724 457 171.16 24 118.18 0.0028
2022-11-10 2022-09-30 13F SL GREEN RLTY COM 78440X887 267 -45 -14.42 11 -21.43 0.0015
2022-08-09 2022-06-30 13F SL GREEN RLTY COM 78440X887 312 98 45.79 14 -17.65 0.0019
2022-05-06 2022-03-31 13F SL GREEN RLTY COM 78440X887 214 12 5.94 17 21.43 0.0021
2022-02-01 2021-12-31 13F SL GREEN RLTY COM 78440X804 202 -58 -22.31 14 -22.22 0.0017
2021-11-12 2021-09-30 13F SL GREEN RLTY COM 78440X804 260 58 28.71 18 12.50 0.0025
2021-08-09 2021-06-30 13F SL GREEN RLTY COM 78440X804 202 0 0.00 16 14.29 0.0023
2021-05-12 2021-03-31 13F SL GREEN RLTY COM 78440X804 202 -29 -12.55 14 0.00 0.0023
2021-02-16 2020-12-31 13F SL GREEN RLTY COM 78440X101 231 59 34.30 14 75.00 0.0026
2020-11-13 2020-09-30 13F SL GREEN RLTY COM 78440X101 172 -5 -2.82 8 -11.11 0.0017
2020-08-13 2020-06-30 13F SL GREEN RLTY COM 78440X101 177 -333 -65.29 9 -59.09 0.0020
2020-05-15 2020-03-31 13F SL Green Realty Com 78440X101 510 -209 -29.07 22 -66.15 0.0037
2020-03-19 2019-12-31 13F/A-1 SL Green Realty Com 78440X101 719 719 65 0.0078
2020-02-03 2019-12-31 13F SL Green Realty Com 78440X101 719 719 65 219.6435
2019-10-24 2019-09-30 13F SL Green Realty COM 78440X101 0 -29 -100.00 0 -100.00
2019-07-24 2019-06-30 13F SL Green Realty COM 78440X101 29 -100 -77.52 2 -80.00 0.0003
2019-04-29 2019-03-31 13F SL Green Realty COM 78440X101 129 100 344.83 10 400.00 0.0018
2019-01-17 2018-12-31 13F SL Green Realty COM 78440X101 29 -27 -48.21 2 -33.33 0.0005
2018-10-29 2018-09-30 13F SL Green Realty COM 78440X101 56 0 0.00 3 0.00 0.0009
2018-08-08 2018-06-30 13F SL Green Realty COM 78440X101 56 -5 -8.20 3 0.00 0.0011
2018-05-10 2018-03-31 13F SL Green Realty COM 78440X101 61 -102 -62.58 3 -75.00 0.0011
2018-01-31 2017-12-31 13F SL Green Realty COM 78440X101 163 0 0.00 12 0.00 0.0048
2017-10-13 2017-09-30 13F SL Green Realty COM 78440X101 163 -103 -38.72 12 -50.00 0.0050
2017-08-14 2017-06-30 13F SL Green Realty COM 78440X101 266 -8 -2.92 24 0.00 0.0106
2017-04-10 2017-03-31 13F SL Green Realty COM 78440X101 274 0 0.00 24 -4.00 0.0105
2017-01-11 2016-12-31 13F SL Green Realty COM 78440X101 274 76 38.38 25 38.89 0.0125
2016-10-25 2016-09-30 13F SL Green Realty COM 78440X101 198 36 22.22 18 28.57 0.0117
2016-07-28 2016-06-30 13F SL Green Realty COM 78440X101 162 30 22.73 14 27.27 0.0096
2016-04-27 2016-03-31 13F SL Green Realty COM 78440X101 132 61 85.92 11 175.00 0.0071
2016-01-28 2015-12-31 13F SL Green Realty COM 78440X101 71 66 1,320.00 4 0.0028
2015-10-28 2015-09-30 13F SL Green Realty COM 78440X101 5 -10 -66.67 0 -100.00
2015-08-12 2015-06-30 13F SL Green Realty COM 78440X101 15 15 1 0.0006
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.