| Summary of Available-for-Sale Debt Securities |
The following tables summarize the available-for-sale debt securities held at September 30, 2026 and December 31, 2025 (in thousands):
|
|
|
|
|
|
|
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|
|
|
|
Description |
|
Amortized
Cost |
|
|
Unrealized
Gains |
|
|
Unrealized
Losses |
|
|
Fair
Value |
|
September 30, 2026 |
|
|
|
|
|
|
|
|
|
|
|
|
US treasury securities |
|
$ |
266,760 |
|
|
$ |
1 |
|
|
$ |
(3,158 |
) |
|
$ |
263,603 |
|
US government agencies |
|
|
339,271 |
|
|
|
— |
|
|
|
(4,016 |
) |
|
|
335,255 |
|
Commercial Paper |
|
|
9,432 |
|
|
|
— |
|
|
|
(6 |
) |
|
|
9,426 |
|
Corporate securities |
|
|
671,756 |
|
|
|
5 |
|
|
|
(7,536 |
) |
|
|
664,225 |
|
Total |
|
$ |
1,287,219 |
|
|
$ |
6 |
|
|
$ |
(14,716 |
) |
|
$ |
1,272,509 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Description |
|
Amortized
Cost |
|
|
Unrealized
Gains |
|
|
Unrealized
Losses |
|
|
Fair
Value |
|
December 31, 2025 |
|
|
|
|
|
|
|
|
|
|
|
|
US treasury securities |
|
$ |
316,979 |
|
|
$ |
623 |
|
|
$ |
(34 |
) |
|
$ |
317,568 |
|
US government agencies |
|
|
290,714 |
|
|
|
276 |
|
|
|
(81 |
) |
|
|
290,909 |
|
Commercial Paper |
|
|
7,156 |
|
|
|
1 |
|
|
|
(2 |
) |
|
|
7,155 |
|
Corporate securities |
|
|
645,772 |
|
|
|
1,285 |
|
|
|
(266 |
) |
|
|
646,791 |
|
Total |
|
$ |
1,260,621 |
|
|
$ |
2,185 |
|
|
$ |
(383 |
) |
|
$ |
1,262,423 |
|
|