Company: MIRM
Filing Date: 2025-11-04
Form Type: 10-Q
Source: 0001759425-25-000054
Chunk: 357

Company: Mirum Pharmaceuticals, Inc.
Filing Date: 2025-11-04
Form: 10-Q
Item: Part I, Item 1
Chunk 357
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 The carrying amounts of certain financial instruments such as cash and cash equivalents, accounts receivable, prepaid expenses, other current assets, accounts payable and accrued expenses as of September 30, 2025 and December 31, 2024 approximate their related fair values due to their short-term nature.Money market funds and U.S. treasury bills are highly liquid investments and are actively traded. The pricing information on these investment instruments is readily available and can be independently validated as of the measurement date. This approach results in the classification of these securities as Level 1 of the fair value hierarchy. Certain financial instruments classified within Level 2 of the fair value hierarchy include the types of instruments that trade in markets that are not considered to be active, but are valued based on quoted market prices, broker or dealer quotations, or alternative pricing sources with reasonable levels of price transparency. The Company reviews trading activity and pricing for these investments as of each measurement date.

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4. Financial Instruments

The fair value and amortized cost of cash equivalents and available-for-sale investments by major security type are presented in the following table (in thousands): September 30, 2025 AmortizedCostUnrealizedGainUnrealizedLossEstimatedFairValueCash equivalents and investments:  Money market funds$229,140 $— $— $229,140 Corporate debt securities71,446 126 (1)71,571 U.S. government bonds19,966 37 — 20,003 Commercial paper5,420 2 — 5,422 Total cash equivalents and investments$325,972 $165 $(1)$326,136 Classified as:  Cash equivalents $230,139 Short-term investments93,527 Long-term investments2,470 Total cash equivalents and investments $326,136  December 31, 2024 AmortizedCostUnrealizedGainUnrealizedLoss EstimatedFairValueCash equivalents:Money market funds$202,965 $— $— $202,965 U.S. treasury bills$2,957 $7 $— $2,964 Corporate debt securities$37,942 $50 $(14)$37,978 U.S. government bonds$26,819 $90 $(5)$26,904 Agency bonds$2,490 $2 $— $2,492 Total cash equivalents and investments$273,