CONDENSED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
May 31, 2026	May 31, 2025
Cash flows from operating activities
Net loss	$ (176,709)	$ (99,815)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	4,451	4,592
Stock-based compensation	20,792	19,107
Net accretion of discount on marketable securities	(3,535)	(6,258)
Loss on disposal of property and equipment	160	0
Amortization of operating lease right-of-use assets	3,175	4,633
Changes in operating assets and liabilities:
Accounts receivable	0	(19,000)
Prepaid expenses and other assets	1,550	(2,962)
Accounts payable	1,411	(5,888)
Deferred revenue	(8,296)	(15,509)
Operating lease liabilities	(352)	(3,080)
Accrued expenses and other current liabilities	(11,134)	(68)
Net cash used in operating activities	(168,487)	(124,248)
Cash flows from investing activities
Purchases of marketable securities	(280,562)	(178,351)
Maturities of marketable securities	252,714	281,543
Purchases of property and equipment	(2,981)	(6,160)
Net cash provided by (used in) investing activities	(30,829)	97,032
Cash flows from financing activities
Proceeds from exercise of stock options	441	227
Proceeds from issuance of common stock under employee stock purchase plan	1,596	1,252
Proceeds from issuances of common stock in “at the market” financing, net of issuance costs	18,004	0
Net cash provided by financing activities	20,041	1,479
Net decrease in cash, cash equivalents and restricted cash	(179,275)	(25,737)
Cash, cash equivalents and restricted cash at beginning of period	247,928	110,898
Cash, cash equivalents and restricted cash at end of period	68,653	85,161
Supplemental disclosures of non-cash investing and financing activities:
Additions to property and equipment included in accounts payable and accrued expenses and other current liabilities	314	1,082
Right-of-use assets recognized in exchange for lease obligations	2,765	26,708
Reconciliation of cash, cash equivalents and restricted cash:
Cash and cash equivalents	67,685	84,260
Restricted cash	968	901
Total cash, cash equivalents and restricted cash	$ 68,653	$ 85,161

The sum of the periodic adjustments of the differences between securities' face values and purchase prices that are charged against earnings. This is called accretion if the security was purchased at a discount and amortization if it was purchased at premium. As a noncash item, this element is an adjustment to net income when calculating cash provided by or used in operations using the indirect method.

Name:	us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- References

No definition available.