Marketable Securities

3 Months Ended

Mar. 31, 2014

Investments Debt And Equity Securities [Abstract]

Marketable Securities

NOTE 3—MARKETABLE SECURITIES

Sangamo classifies its marketable securities as available-for-sale and records its investments at fair value. Available-for-sale securities are carried at estimated fair value based on quoted market prices, with the unrealized holding gains and losses included in accumulated other comprehensive income. Marketable securities that have maturities beyond one year as of the end of the reporting period are classified as non-current. The Company’s investments are subject to a periodic impairment review, and the Company recognizes an impairment charge when a decline in the fair value of its investments below the cost basis is judged to be other-than-temporary. The Company considers various factors in determining whether to recognize an impairment charge, including the length of time and extent to which the fair value has been less than the Company’s cost basis, the financial condition and near-term prospects of the investee, and the Company’s intent and ability to hold the investment for a period of time sufficient to allow for any anticipated recovery in the market value.

The table below summarizes the Company’s available-for-sale securities (in thousands):

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized (Losses)		Estimated Fair Value
March 31, 2014
Cash equivalents:
Money market funds	$	7,234	$	—	$	—	$	7,234
Total		7,234		—		—		7,234
Available-for-sale securities:
U.S. government sponsored entity debt securities		116,970		21		—		116,991
Total cash equivalents and available-for-sale securities	$	124,204	$	21	$	—	$	124,225
December 31, 2013
Cash equivalents:
Money market funds		6,934		—		—		6,934
Total		6,934		—		—		6,934
Available-for-sale securities:
U.S. government sponsored entity debt securities		121,278		12		—		121,290
Total cash equivalents and available-for-sale securities	$	128,212	$	12	$	—	$	128,224

As of March 31, 2014, none of the available-for-sale securities held by the Company had material unrealized losses and there were no realized losses for the three months ended March 31, 2014. The Company had no other-than-temporary impairments of available-for-sale securities for the three months ended March 31, 2014 or the twelve months ended December 31, 2013.