v3.25.3
Investment securities
9 Months Ended
Sep. 30, 2025
Investment securities  
Investment securities

4

Investment securities

The following tables summarize the Company’s investments in government debt securities as of September 30, 2025 and December 31, 2024:

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At September 30, 2025

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Amortized cost

    

Gross unrealized holding gains

    

Gross unrealized holding losses

    

Estimated fair value

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(in thousands)

Current investments:

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​

​

​

​

​

​

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Government debt securities (held-to-maturity)

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$

97,189

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$

51

​

$

—

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$

97,240

Total

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$

97,189

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$

51

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$

—

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$

97,240

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At December 31, 2024

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Amortized cost

    

Gross unrealized holding gains

    

Gross unrealized holding losses

    

Estimated fair value

​

​

(in thousands)

Current investments:

​

​

​

​

​

​

​

​

​

​

​

​

Government debt securities (held-to-maturity)

​

$

208,591

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$

164

​

$

—

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$

208,755

Total

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$

208,591

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$

164

​

$

—

​

$

208,755

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The Company invests in short-term U.S. and European government debt securities with high investment credit ratings. The U.S. and European government bonds are U.S. dollar and euro denominated, respectively.

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Investment securities with original maturities of 90 days or less when purchased are presented within cash and cash equivalents and measured at amortized cost (September 30, 2025: $119.3 million, December 31, 2024: $15.3 million).

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Inputs to the fair value of the investments are considered Level 2 inputs.