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Cash and Cash Equivalents, Investments and Fair Value Measurements
9 Months Ended
Oct. 31, 2023
Fair Value Disclosures [Abstract]  
Cash and Cash Equivalents, Investments and Fair Value Measurements CASH AND CASH EQUIVALENTS, INVESTMENTS, AND FAIR VALUE MEASUREMENTS
The following tables summarizes information about our cash, cash equivalents, and investments by investment category as of October 31, 2023 and January 31, 2023 (in thousands):
As of October 31, 2023
Fair Value LevelAmortized CostGross Unrealized GainsGross Unrealized LossesEstimated Fair Value
Assets
Cash and cash equivalents:
CashLevel 1$37,654 $— $— $37,654 
Money market fundsLevel 176,323 — — 76,323 
U.S. Treasury securities
Level 16,418 — — 6,418 
Commercial paper
Level 26,946 — (1)6,945 
Total cash and cash equivalents$127,341 $— $(1)$127,340 
Short-term investments:
U.S. Treasury securitiesLevel 1$249,557 $— $(2,178)$247,379 
Commercial paperLevel 240,884 — (21)40,863 
Corporate notes and bondsLevel 2237,430 — (2,275)235,155 
U.S. agency securitiesLevel 2148,302 — (1,067)147,235 
Total short-term investments$676,173 $— $(5,541)$670,632 
Long-term investments:
U.S. Treasury securitiesLevel 1$61,514 $$(293)$61,223 
Corporate notes and bondsLevel 2123,215 — (1,045)122,170 
U.S. agency securitiesLevel 2129,659 — (920)128,739 
Total long-term investments$314,388 $$(2,258)$312,132 
Total assets measured at fair value$1,117,902 $$(7,800)$1,110,104 
As of January 31, 2023
Fair Value LevelAmortized CostGross Unrealized GainsGross Unrealized LossesEstimated Fair Value
Assets
Cash and cash equivalents:
CashLevel 1$35,055 $— $— $35,055 
Money market fundsLevel 1102,886 — — 102,886 
Total cash and cash equivalents$137,941 $— $— $137,941 
Short-term investments:
U.S. Treasury securitiesLevel 1$144,392 $$(501)$143,892 
Commercial paperLevel 2230,305 30 (667)229,668 
Corporate notes and bondsLevel 238,443 15 (148)38,310 
U.S. agency securitiesLevel 274,060 (349)73,714 
Total short-term investments$487,200 $49 $(1,665)$485,584 
Long-term investments:
U.S. Treasury securitiesLevel 1$192,337 $— $(2,460)$189,877 
Corporate notes and bondsLevel 2233,946 178 (2,029)232,095 
U.S. agency securitiesLevel 2101,844 27 (921)100,950 
Total long-term investments$528,127 $205 $(5,410)$522,922 
Total assets measured at fair value$1,153,268 $254 $(7,075)$1,146,447 
We invest in highly rated securities with a weighted average maturity of 18 months or less. As of October 31, 2023, all of our investments will mature within 2 years.
There were no transfers between the levels of the fair value hierarchy during the three and nine months ended October 31, 2023 and 2022.
As of October 31, 2023, we determined that the declines in the market value of our investment portfolio were not driven by credit related factors. During the three and nine months ended October 31, 2023 and 2022, we did not recognize any losses on our investments due to credit related factors. As of October 31, 2023, we had $4.3 million in continuous unrealized loss positions for more than twelve months on securities with a total fair value of $395.9 million.
The tables above do not include the Company’s strategic investments in non-marketable debt and equity securities, recorded at cost, less any impairment, plus or minus observable price changes in orderly transactions for identical or similar investments of the same issuer (the Measurement Alternative) and were $13.0 million and $12.5 million as of October 31, 2023 and January 31, 2023, respectively.
During the three and nine months ended October 31, 2023, the Company recognized impairment charges on its non-marketable strategic investments of $0.8 million. During the three and nine months ended October 31, 2023, the Company recognized realized gains of $1.5 million and $3.5 million, respectively on its non-marketable strategic investments. Impairment charges and realized gains on strategic investments were recognized in other income (expense), net. The fair value was estimated on a non-recurring basis based on Level 3 inputs.