Company: SLG-PI
Filing Date: 2025-04-17
Form Type: 10-K/A
Source: 0001040971-25-000019
Chunk: 29

Company: SL GREEN REALTY CORP
Filing Date: 2025-04-17
Form: 10-K/A
Chunk 29
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 for the years ended December 31, 2024, 2023 and 2022. We account for equity marketable securities at fair value pursuant to ASC 820-10, with the net unrealized gains or losses reported in net income.

As of December 31, 2024 and 2023, we held the following marketable securities (in thousands):

|                                                            |     |   | December 31, 2024 |     |   | December 31, 2023 |
|:-----------------------------------------------------------|:----|:--|------------------:|:----|:--|------------------:|
| Commercial mortgage-backed securities - available-for-sale |     | $ |            17,323 |     | $ |             9,591 |
| Commercial mortgage-backed securities - held-to-maturity   |     |   |             5,489 |     |   |                 — |
| Total investment in marketable securities                  |     | $ |            22,812 |     | $ |             9,591 |

The cost basis of the available-for-sale commercial mortgage-backed securities ("CMBS") was $ 18.3million and $ 11.5million as of December 31, 2024 and 2023, respectively. These securities mature at various times through 2030. As of December 31, 2024, onesecurity was in an unrealized gain position of $ 0.2million with a fair market value of $ 5.5million, and twosecurities were in an unrealized loss position of $ 1.5million and fair market value of $ 11.8million with oneof the securities being in a continuous unrealized loss position for more than 12 months. All securities were in an unrealized loss position as of December 31, 2023 with an unrealized loss of $ 1.9million and a fair market value of $ 9.6million and were in a continuous unrealized loss position for more than 12 months. We do not intend to sell our other securities, and it is more likely than not that we will not be required to sell the investment before the recovery of their amortized cost basis.

The cost basis of the held-to-maturity CMBS was $ 5.5million as of December 31, 2024, and was purchased at a $ 0.2million discount. We had noheld-to-maturity CMBS as of December 31,