| Summary of Available-for-Sale Debt Securities |
The following tables summarize the available-for-sale debt securities held at March 31, 2026 and December 31, 2025 (in thousands):
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Description |
|
Amortized
Cost |
|
|
Unrealized
Gains |
|
|
Unrealized
Losses |
|
|
Fair
Value |
|
March 31, 2026 |
|
|
|
|
|
|
|
|
|
|
|
|
US treasury securities |
|
$ |
325,564 |
|
|
$ |
146 |
|
|
$ |
(922 |
) |
|
$ |
324,788 |
|
US government agencies |
|
|
383,037 |
|
|
|
65 |
|
|
|
(1,135 |
) |
|
|
381,967 |
|
Commercial Paper |
|
|
13,634 |
|
|
|
— |
|
|
|
(6 |
) |
|
|
13,628 |
|
Corporate securities |
|
|
683,522 |
|
|
|
159 |
|
|
|
(2,501 |
) |
|
|
681,180 |
|
Total |
|
$ |
1,405,757 |
|
|
$ |
370 |
|
|
$ |
(4,564 |
) |
|
$ |
1,401,563 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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 |
|
|