SL Green Realty Corp.
US ˙ NYSE ˙ US78440X8873

SecuritySLG / SL Green Realty Corp.
InstitutionAdvisor Group Holdings, Inc.
Latest Disclosed Ownership22,913 shares
Latest Disclosed Value $ 846,418
Advisor Group Holdings, Inc. reports 7.16% decrease in ownership of SLG / SL Green Realty Corp.

On May 15, 2026 - Advisor Group Holdings, Inc. filed a 13F-HR form disclosing ownership of 22,913 shares of SL Green Realty Corp. (US:SLG) valued at $846,406 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 24,681 shares of SL Green Realty Corp.. This represents a change in shares of -7.16% during the quarter. The current value of the position is $1,095,929 USD.

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 SL GREEN RLTY COM 78440X887 22,913 -1,768 -7.16 846 -25.27 0.0007
2026-02-17 2025-12-31 13F SL GREEN RLTY COM 78440X887 24,681 -472 -1.88 1,132 -24.58 0.0017
2025-11-14 2025-09-30 13F SL GREEN RLTY COM 78440X887 25,153 12,130 93.14 1,502 86.23 0.0021
2025-09-04 2025-06-30 13F/A-1 L GREEN RLTY COM 78440X887 13,023 -2,488 -16.04 806 -9.94 0.0014
2025-08-13 2025-06-30 13F L GREEN RLTY COM 78440X887 22,224 6,713 1,503 0.0017
2025-05-12 2025-03-31 13F SL GREEN RLTY COM 78440X887 15,511 -6,219 -28.62 896 -39.36 0.0020
2025-06-06 2024-12-31 13F/A-1 SL GREEN RLTY COM 78440X887 21,730 -2,799 -11.41 1,477 -13.58 0.0033
2025-02-07 2024-12-31 13F SL GREEN RLTY COM 78440X887 21,523 -3,006 1,498 0.0038
2024-11-13 2024-09-30 13F SL GREEN RLTY COM 78440X887 24,529 -4,249 -14.76 1,708 4.79 0.0039
2024-08-13 2024-06-30 13F SL GREEN RLTY COM 78440X887 28,778 -3,984 -12.16 1,631 -9.75 0.0039
2024-05-10 2024-03-31 13F SL GREEN RLTY COM 78440X887 32,762 -4,144 -11.23 1,807 8.34 0.0040
2024-02-12 2023-12-31 13F SL GREEN RLTY COM 78440X887 36,906 -5,980 -13.94 1,668 4.19 0.0029
2023-11-13 2023-09-30 13F SL GREEN RLTY COM 78440X887 42,886 5,808 15.66 1,600 43.11 0.0024
2023-08-21 2023-06-30 13F/A-1 SL GREEN RLTY COM 78440X887 37,078 11,459 44.73 1,119 85.10 0.0020
2023-08-10 2023-06-30 13F SL GREEN RLTY COM 78440X887 37,252 11,633 1,119 0.0003
2023-05-12 2023-03-31 13F SL GREEN RLTY COM 78440X887 25,619 7,017 37.72 604 -3.82 0.0011
2023-02-10 2022-12-31 13F SL GREEN RLTY COM 78440X887 18,602 5,741 44.64 628 21.71 0.0013
2022-11-14 2022-09-30 13F SL GREEN RLTY COM 78440X887 12,861 -264 -2.01 516 -15.27 0.0012
2022-08-10 2022-06-30 13F SL GREEN RLTY COM 78440X887 13,125 7,093 117.59 609 24.54 0.0013
2022-05-04 2022-03-31 13F SL GREEN RLTY COM 78440X887 6,032 -6,502 -51.87 489 -46.03 0.0009
2022-02-03 2021-12-31 13F SL GREEN RLTY COM 78440X804 12,534 400 3.30 906 5.59 0.0017
2021-11-05 2021-09-30 13F SL GREEN RLTY COM 78440X804 12,134 3,871 46.85 858 29.22 0.0018
2021-08-02 2021-06-30 13F SL GREEN RLTY COM 78440X804 8,263 -997 -10.77 664 1.53 0.0014
2021-05-13 2021-03-31 13F SL GREEN RLTY COM 78440X804 9,260 4,957 115.20 654 155.47 0.0016
2021-02-10 2020-12-31 13F SL GREEN RLTY COM 78440X101 4,303 -927 -17.72 256 6.22 0.0007
2020-11-12 2020-09-30 13F SL GREEN RLTY COM 78440X101 5,230 2,800 115.23 241 129.52 0.0007
2020-08-14 2020-06-30 13F SL GREEN RLTY COM 78440X101 2,430 -469 -16.18 105 -15.32 0.0004
2020-05-18 2020-03-31 13F SL GREEN RLTY COM 78440X101 2,899 2,899 124 0.0005
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.