Company: CIMO
Filing Date: 2025-10-01
Form Type: S-3ASR
Source: 0001193125-25-226772
Chunk: 73

Company: CHIMERA INVESTMENT CORP
Filing Date: 2025-10-01
Form: S-3ASR
Chunk 73
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 Beneficial    
 Ownership     |   |
| Seer Capital Partners Master Fund LP |     |                       | 1,008,189 |     |               | 1.24 | % |     |            | 1,008,189 |     |                    | — |     |               | — |
| Seer Capital Management LP           |     |                       |   591,096 |     |               |    * |   |     |            |   591,096 |     |                    | — |     |               | — |
| Kyle Walker                          |     |                       |   399,821 |     |               |    * |   |     |            |   399,821 |     |                    | — |     |               | — |
| Michael Koch                         |     |                       |    46,859 |     |               |    * |   |     |            |    46,859 |     |                    | — |     |               | — |
| Robert Clafford                      |     |                       |    31,186 |     |               |    * |   |     |            |    31,186 |     |                    | — |     |               | — |

| * | Less than 1 percent. |

| (1) | Based on a total of 81,072,943 shares of our common stock outstanding as of September 29, 2025. |

43

PLAN OF DISTRIBUTION Any of the selling stockholders may, from time to time, sell any or all of the shares of our common stock beneficially owned by them and offered hereby directly or through broker-dealers or agents. If the common stock is sold through broker-dealers or agents, the selling stockholder will be responsible for all fees, discounts or commissions attributable to such sale. The common stock may be sold in one or more transactions at fixed prices, at prevailing market prices at the time of sale, at varying prices determined at the time or sale or at negotiated prices. Such sales may be effected in transactions (which may involve block transactions):

| • |     | on any national securities exchange or quotation service on which the common stock may be listed or quoted at the 
 time of sale;                                                                                                     |

| • |     | ordinary brokerage transactions and transactions in which the broker-dealer solicits purchasers; |

| • |     | block trades in which a broker-dealer may attempt to sell the shares as agent but may position and resell a 
 portion of