SL Green Realty Corp.
US ˙ NYSE ˙ US78440X8873

SecuritySLG / SL Green Realty Corp.
InstitutionUBS Group AG
Latest Disclosed Ownership1,120,396 shares
Latest Disclosed Value $ 41,387,427
UBS Group AG ownership in SLG / SL Green Realty Corp.

On May 5, 2026 - UBS Group AG filed a 13F-HR form disclosing ownership of 1,120,396 shares of SL Green Realty Corp. (US:SLG) valued at $41,387,428 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 703,704 shares of SL Green Realty Corp.. This represents a change in shares of 59.21% during the quarter. The current value of the position is $49,868,826 USD.

UBS Group AG has a history of taking positions in derivatives of the underlying security (SLG) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put options representing 32,500 of underlying shares valued at $1,200,550 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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.

SLG / SL Green Realty Corp. 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)
2026-05-05 2026-03-31 13F SL GREEN RLTY COM 78440X887 1,120,396 416,692 59.21 41,387 28.22 0.0012
2026-01-29 2025-12-31 13F SL GREEN RLTY COM 78440X887 703,704 264,321 60.16 32,279 22.83 0.0052
2025-11-13 2025-09-30 13F SL GREEN RLTY COM 78440X887 439,383 27,508 6.68 26,279 3.08 0.0041
2025-08-14 2025-06-30 13F SL GREEN RLTY COM 78440X887 411,875 72,950 21.52 25,495 30.38 0.0044
2025-05-13 2025-03-31 13F SL GREEN RLTY COM 78440X887 338,925 191,389 129.72 19,556 95.16 0.0036
2025-02-14 2024-12-31 13F SL GREEN RLTY COM 78440X887 147,536 76,083 106.48 10,021 101.49 0.0019
2024-11-14 2024-09-30 13F SL GREEN RLTY COM 78440X887 71,453 16,328 29.62 4,974 59.29 0.0011
2024-08-14 2024-06-30 13F SL GREEN RLTY COM 78440X887 55,125 -114,208 -67.45 3,122 -66.56 0.0008
2024-05-13 2024-03-31 13F SL GREEN RLTY COM 78440X887 169,333 62,086 57.89 9,335 92.71 0.0023
2024-02-09 2023-12-31 13F SL GREEN RLTY COM 78440X887 107,247 54,040 101.57 4,844 144.15 0.0015
2023-11-09 2023-09-30 13F SL GREEN RLTY COM 78440X887 53,207 -66,030 -55.38 1,985 -44.63 0.0007
2023-08-11 2023-06-30 13F SL GREEN RLTY COM 78440X887 119,237 40,499 51.44 3,583 93.57 0.0012
2023-05-12 2023-03-31 13F SL GREEN RLTY COM 78440X887 78,738 -10,550 -11.82 1,852 -38.50 0.0007
2023-02-08 2022-12-31 13F SL GREEN RLTY COM 78440X887 89,288 -18,903 -17.47 3,011 -30.72 0.0011
2022-11-10 2022-09-30 13F SL GREEN RLTY COM 78440X887 108,191 72,118 199.92 4,345 161.12 0.0019
2022-08-10 2022-06-30 13F SL GREEN RLTY COM 78440X887 36,073 -35,754 -49.78 1,664 -71.46 0.0007
2022-05-16 2022-03-31 13F SL GREEN RLTY COM 78440X887 71,827 -95,187 -56.99 5,831 -51.30 0.0019
2022-02-14 2021-12-31 13F SL GREEN RLTY COM 78440X804 167,014 -137,194 -45.10 11,974 -44.44 0.0034
2021-11-15 2021-09-30 13F SL GREEN RLTY COM 78440X804 304,208 42,883 16.41 21,550 3.08 0.0068
2021-08-13 2021-06-30 13F SL GREEN RLTY COM 78440X804 261,325 84,595 47.87 20,906 69.02 0.0067
2021-05-12 2021-03-31 13F SL GREEN RLTY COM 78440X804 176,730 -2,557 -1.43 12,369 15.80 0.0041
2021-02-11 2020-12-31 13F SL GREEN RLTY COM 78440X101 179,287 162,895 993.75 10,681 1,305.39 0.0036
2020-11-12 2020-09-30 13F SL GREEN RLTY COM 78440X101 16,392 -14,201 -46.42 760 -49.60 0.0003
2020-07-31 2020-06-30 13F SL GREEN RLTY COM 78440X101 30,593 19,959 187.69 1,508 229.26 0.0006
2020-05-01 2020-03-31 13F SL GREEN RLTY COM 78440X101 10,634 -184,525 -94.55 458 -97.45 0.0002
2020-02-14 2019-12-31 13F SL GREEN RLTY COM 78440X101 195,159 78,007 66.59 17,932 87.24 0.0062
2019-11-14 2019-09-30 13F SL GREEN RLTY COM 78440X101 117,152 100,767 615.00 9,577 627.18 0.0037
2019-08-14 2019-06-30 13F SL GREEN RLTY COM 78440X101 16,385 -15,624 -48.81 1,317 -54.24 0.0005
2019-05-14 2019-03-31 13F SL GREEN RLTY COM 78440X101 32,009 23,555 278.63 2,878 330.19 0.0012
2019-02-14 2018-12-31 13F SL GREEN RLTY COM 78440X101 8,454 -1,417 -14.36 669 -30.53 0.0003
2018-11-14 2018-09-30 13F SL GREEN RLTY COM 78440X101 9,871 -650 -6.18 963 -8.98 0.0004
2018-08-14 2018-06-30 13F SL GREEN RLTY COM 78440X101 10,521 -986 -8.57 1,058 -5.03 0.0005
2018-05-15 2018-03-31 13F SL GREEN RLTY COM 78440X101 11,507 -71,457 -86.13 1,114 -86.70 0.0005
2018-02-14 2017-12-31 13F SL GREEN RLTY COM 78440X101 82,964 49,184 145.60 8,374 144.64 0.0034
2017-11-14 2017-09-30 13F SL GREEN RLTY COM 78440X101 33,780 24,469 262.80 3,423 247.51 0.0016
2017-11-14 2017-06-30 13F/A-1 SL GREEN RLTY COM 78440X101 9,311 -31,694 -77.29 985 -77.47 0.0005
2017-08-14 2017-06-30 13F SL GREEN RLTY COM 78440X101 9,311 -31,694 985
2017-11-14 2017-03-31 13F/A-1 SL GREEN RLTY COM 78440X101 41,005 21,678 112.16 4,372 110.29 0.0024
2017-05-12 2017-03-31 13F SL GREEN RLTY COM 78440X101 41,005 21,678 4,372
2017-02-14 2016-12-31 13F SL GREEN RLTY COM 78440X101 19,327 7,780 67.38 2,079 66.45 0.0011
2016-11-14 2016-09-30 13F SL GREEN RLTY COM 78440X101 11,547 -31,963 -73.46 1,249 -73.04 0.0007
2016-08-12 2016-06-30 13F SL GREEN RLTY COM 78440X101 43,510 7,527 20.92 4,632 32.87 0.0029
2016-05-12 2016-03-31 13F SL GREEN RLTY COM 78440X101 35,983 -6,153 -14.60 3,486 -26.78 0.0023
2016-02-16 2015-12-31 13F SL GREEN RLTY COM 78440X101 42,136 -6,228 -12.88 4,761 -8.98 0.0031
2015-11-13 2015-09-30 13F SL GREEN RLTY COM 78440X101 48,364 13,946 40.52 5,231 38.31 0.0037
2015-08-14 2015-06-30 13F SL GREEN RLTY COM 78440X101 34,418 -18,349 -34.77 3,782 -44.17 0.0025
2015-05-14 2015-03-31 13F SL GREEN RLTY COM 78440X101 52,767 14,484 37.83 6,774 48.65 0.0047
2015-02-17 2014-12-31 13F SL GREEN RLTY COM 78440X101 38,283 38,283 4,557 0.0032
Disclosed Call 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
(%)
2023-11-09 2023-09-30 13F SL GREEN RLTY COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2023-08-11 2023-06-30 13F SL GREEN RLTY COM Call 75,000 2,254 n/a n/a n/a
2020-05-01 2020-03-31 13F SL GREEN RLTY COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2020-02-14 2019-12-31 13F SL GREEN RLTY COM Call 209,388 19,239 n/a n/a n/a
2019-02-14 2018-12-31 13F SL GREEN RLTY COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2018-11-14 2018-09-30 13F SL GREEN RLTY COM Call 209,388 20,422 n/a n/a n/a
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
(%)
2026-05-05 2026-03-31 13F SL GREEN RLTY COM Put 32,500 -57.46 1,201 -65.75 n/a n/a n/a
2026-01-29 2025-12-31 13F SL GREEN RLTY COM Put 76,400 -49.20 3,504 -61.05 n/a n/a n/a
2025-11-13 2025-09-30 13F SL GREEN RLTY COM Put 150,400 361.35 8,995 345.96 n/a n/a n/a
2025-08-14 2025-06-30 13F SL GREEN RLTY COM Put 32,600 -1.51 2,018 5.66 n/a n/a n/a
2025-05-13 2025-03-31 13F SL GREEN RLTY COM Put 33,100 1,910 n/a n/a n/a
2024-11-14 2024-09-30 13F SL GREEN RLTY COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2024-08-14 2024-06-30 13F SL GREEN RLTY COM Put 100,000 5,664 n/a n/a n/a
2023-11-09 2023-09-30 13F SL GREEN RLTY COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2023-08-11 2023-06-30 13F SL GREEN RLTY COM Put 75,000 2,254 n/a n/a n/a
2023-05-12 2023-03-31 13F SL GREEN RLTY COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2023-02-08 2022-12-31 13F SL GREEN RLTY COM Put 34,500 0.00 1,163 -16.09 n/a n/a n/a
2022-11-10 2022-09-30 13F SL GREEN RLTY COM Put 34,500 -62.98 1,386 -67.77 n/a n/a n/a
2022-08-10 2022-06-30 13F SL GREEN RLTY COM Put 93,200 4,301 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.